| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <20220302065213.82702-1-alankao@andestech.com>
Date: Wed, 2 Mar 2022 14:52:13 +0800
From: Alan Kao <alankao@...estech.com>
To: Arnd Bergmann <arnd@...db.de>, <linux-kernel@...r.kernel.org>,
"Greentime Hu" <green.hu@...il.com>
CC: Alan Kao <alankao@...estech.com>
Subject: [PATCH] nds32: Remove the architecture
Previous discussion is here:
https://www.spinics.net/lists/linux-mm/msg286280.html
Signed-off-by: Alan Kao <alankao@...estech.com>
---
.../andestech,ativic32.txt | 19 -
.../bindings/nds32/andestech-boards | 40 -
.../devicetree/bindings/nds32/atl2c.txt | 28 -
.../devicetree/bindings/nds32/cpus.txt | 38 -
.../devicetree/bindings/perf/nds32v3-pmu.txt | 17 -
.../timer/andestech,atcpit100-timer.txt | 33 -
.../features/core/cBPF-JIT/arch-support.txt | 1 -
.../features/core/eBPF-JIT/arch-support.txt | 1 -
.../core/generic-idle-thread/arch-support.txt | 1 -
.../core/jump-labels/arch-support.txt | 1 -
.../core/thread-info-in-task/arch-support.txt | 1 -
.../features/core/tracehook/arch-support.txt | 1 -
.../features/debug/KASAN/arch-support.txt | 1 -
.../debug/debug-vm-pgtable/arch-support.txt | 1 -
.../debug/gcov-profile-all/arch-support.txt | 1 -
.../features/debug/kcov/arch-support.txt | 1 -
.../features/debug/kgdb/arch-support.txt | 1 -
.../features/debug/kmemleak/arch-support.txt | 1 -
.../debug/kprobes-on-ftrace/arch-support.txt | 1 -
.../features/debug/kprobes/arch-support.txt | 1 -
.../debug/kretprobes/arch-support.txt | 1 -
.../features/debug/optprobes/arch-support.txt | 1 -
.../debug/stackprotector/arch-support.txt | 1 -
.../features/debug/uprobes/arch-support.txt | 1 -
.../debug/user-ret-profiler/arch-support.txt | 1 -
.../io/dma-contiguous/arch-support.txt | 1 -
.../locking/cmpxchg-local/arch-support.txt | 1 -
.../features/locking/lockdep/arch-support.txt | 1 -
.../locking/queued-rwlocks/arch-support.txt | 1 -
.../locking/queued-spinlocks/arch-support.txt | 1 -
.../perf/kprobes-event/arch-support.txt | 1 -
.../features/perf/perf-regs/arch-support.txt | 1 -
.../perf/perf-stackdump/arch-support.txt | 1 -
.../membarrier-sync-core/arch-support.txt | 1 -
.../sched/numa-balancing/arch-support.txt | 1 -
.../seccomp/seccomp-filter/arch-support.txt | 1 -
.../time/arch-tick-broadcast/arch-support.txt | 1 -
.../time/clockevents/arch-support.txt | 1 -
.../time/context-tracking/arch-support.txt | 1 -
.../time/irq-time-acct/arch-support.txt | 1 -
.../time/virt-cpuacct/arch-support.txt | 1 -
.../features/vm/ELF-ASLR/arch-support.txt | 1 -
.../features/vm/PG_uncached/arch-support.txt | 1 -
.../features/vm/THP/arch-support.txt | 1 -
.../features/vm/TLB/arch-support.txt | 1 -
.../features/vm/huge-vmap/arch-support.txt | 1 -
.../features/vm/ioremap_prot/arch-support.txt | 1 -
.../features/vm/pte_special/arch-support.txt | 1 -
MAINTAINERS | 12 -
arch/nds32/Kbuild | 4 -
arch/nds32/Kconfig | 102 --
arch/nds32/Kconfig.cpu | 218 ---
arch/nds32/Kconfig.debug | 2 -
arch/nds32/Makefile | 63 -
arch/nds32/boot/.gitignore | 2 -
arch/nds32/boot/Makefile | 16 -
arch/nds32/boot/dts/Makefile | 2 -
arch/nds32/boot/dts/ae3xx.dts | 90 -
arch/nds32/configs/defconfig | 104 --
arch/nds32/include/asm/Kbuild | 8 -
arch/nds32/include/asm/assembler.h | 39 -
arch/nds32/include/asm/barrier.h | 15 -
arch/nds32/include/asm/bitfield.h | 985 -----------
arch/nds32/include/asm/cache.h | 12 -
arch/nds32/include/asm/cache_info.h | 13 -
arch/nds32/include/asm/cacheflush.h | 53 -
arch/nds32/include/asm/current.h | 12 -
arch/nds32/include/asm/delay.h | 39 -
arch/nds32/include/asm/elf.h | 180 --
arch/nds32/include/asm/fixmap.h | 29 -
arch/nds32/include/asm/fpu.h | 126 --
arch/nds32/include/asm/fpuemu.h | 44 -
arch/nds32/include/asm/ftrace.h | 46 -
arch/nds32/include/asm/futex.h | 101 --
arch/nds32/include/asm/highmem.h | 65 -
arch/nds32/include/asm/io.h | 84 -
arch/nds32/include/asm/irqflags.h | 41 -
arch/nds32/include/asm/l2_cache.h | 137 --
arch/nds32/include/asm/linkage.h | 11 -
arch/nds32/include/asm/memory.h | 91 -
arch/nds32/include/asm/mmu.h | 12 -
arch/nds32/include/asm/mmu_context.h | 62 -
arch/nds32/include/asm/nds32.h | 82 -
arch/nds32/include/asm/nds32_fpu_inst.h | 109 --
arch/nds32/include/asm/page.h | 64 -
arch/nds32/include/asm/perf_event.h | 16 -
arch/nds32/include/asm/pgalloc.h | 62 -
arch/nds32/include/asm/pgtable.h | 377 -----
arch/nds32/include/asm/pmu.h | 386 -----
arch/nds32/include/asm/proc-fns.h | 44 -
arch/nds32/include/asm/processor.h | 104 --
arch/nds32/include/asm/ptrace.h | 77 -
arch/nds32/include/asm/sfp-machine.h | 158 --
arch/nds32/include/asm/shmparam.h | 19 -
arch/nds32/include/asm/stacktrace.h | 39 -
arch/nds32/include/asm/string.h | 17 -
arch/nds32/include/asm/suspend.h | 11 -
arch/nds32/include/asm/swab.h | 35 -
arch/nds32/include/asm/syscall.h | 142 --
arch/nds32/include/asm/syscalls.h | 14 -
arch/nds32/include/asm/thread_info.h | 76 -
arch/nds32/include/asm/tlb.h | 11 -
arch/nds32/include/asm/tlbflush.h | 46 -
arch/nds32/include/asm/uaccess.h | 286 ----
arch/nds32/include/asm/unistd.h | 6 -
arch/nds32/include/asm/vdso.h | 24 -
arch/nds32/include/asm/vdso_datapage.h | 37 -
arch/nds32/include/asm/vdso_timer_info.h | 14 -
arch/nds32/include/asm/vermagic.h | 9 -
arch/nds32/include/asm/vmalloc.h | 4 -
arch/nds32/include/uapi/asm/Kbuild | 2 -
arch/nds32/include/uapi/asm/auxvec.h | 19 -
arch/nds32/include/uapi/asm/byteorder.h | 13 -
arch/nds32/include/uapi/asm/cachectl.h | 14 -
arch/nds32/include/uapi/asm/fp_udfiex_crtl.h | 16 -
arch/nds32/include/uapi/asm/param.h | 11 -
arch/nds32/include/uapi/asm/ptrace.h | 25 -
arch/nds32/include/uapi/asm/sigcontext.h | 84 -
arch/nds32/include/uapi/asm/unistd.h | 16 -
arch/nds32/kernel/.gitignore | 2 -
arch/nds32/kernel/Makefile | 33 -
arch/nds32/kernel/asm-offsets.c | 28 -
arch/nds32/kernel/atl2c.c | 65 -
arch/nds32/kernel/cacheinfo.c | 49 -
arch/nds32/kernel/devtree.c | 19 -
arch/nds32/kernel/dma.c | 82 -
arch/nds32/kernel/ex-entry.S | 177 --
arch/nds32/kernel/ex-exit.S | 193 ---
arch/nds32/kernel/ex-scall.S | 100 --
arch/nds32/kernel/fpu.c | 266 ---
arch/nds32/kernel/ftrace.c | 278 ---
arch/nds32/kernel/head.S | 197 ---
arch/nds32/kernel/irq.c | 9 -
arch/nds32/kernel/module.c | 278 ---
arch/nds32/kernel/nds32_ksyms.c | 25 -
arch/nds32/kernel/perf_event_cpu.c | 1500 -----------------
arch/nds32/kernel/pm.c | 80 -
arch/nds32/kernel/process.c | 257 ---
arch/nds32/kernel/ptrace.c | 118 --
arch/nds32/kernel/setup.c | 369 ----
arch/nds32/kernel/signal.c | 384 -----
arch/nds32/kernel/sleep.S | 131 --
arch/nds32/kernel/stacktrace.c | 53 -
arch/nds32/kernel/sys_nds32.c | 84 -
arch/nds32/kernel/syscall_table.c | 17 -
arch/nds32/kernel/time.c | 11 -
arch/nds32/kernel/traps.c | 354 ----
arch/nds32/kernel/vdso.c | 231 ---
arch/nds32/kernel/vdso/.gitignore | 2 -
arch/nds32/kernel/vdso/Makefile | 79 -
arch/nds32/kernel/vdso/datapage.S | 21 -
arch/nds32/kernel/vdso/gen_vdso_offsets.sh | 15 -
arch/nds32/kernel/vdso/gettimeofday.c | 269 ---
arch/nds32/kernel/vdso/note.S | 11 -
arch/nds32/kernel/vdso/sigreturn.S | 19 -
arch/nds32/kernel/vdso/vdso.S | 18 -
arch/nds32/kernel/vdso/vdso.lds.S | 75 -
arch/nds32/kernel/vmlinux.lds.S | 70 -
arch/nds32/lib/Makefile | 4 -
arch/nds32/lib/clear_user.S | 42 -
arch/nds32/lib/copy_from_user.S | 45 -
arch/nds32/lib/copy_page.S | 40 -
arch/nds32/lib/copy_template.S | 69 -
arch/nds32/lib/copy_to_user.S | 45 -
arch/nds32/lib/memcpy.S | 30 -
arch/nds32/lib/memmove.S | 70 -
arch/nds32/lib/memset.S | 33 -
arch/nds32/lib/memzero.S | 18 -
arch/nds32/math-emu/Makefile | 10 -
arch/nds32/math-emu/faddd.c | 24 -
arch/nds32/math-emu/fadds.c | 24 -
arch/nds32/math-emu/fcmpd.c | 24 -
arch/nds32/math-emu/fcmps.c | 24 -
arch/nds32/math-emu/fd2s.c | 22 -
arch/nds32/math-emu/fd2si.c | 30 -
arch/nds32/math-emu/fd2siz.c | 30 -
arch/nds32/math-emu/fd2ui.c | 30 -
arch/nds32/math-emu/fd2uiz.c | 30 -
arch/nds32/math-emu/fdivd.c | 27 -
arch/nds32/math-emu/fdivs.c | 26 -
arch/nds32/math-emu/fmuld.c | 23 -
arch/nds32/math-emu/fmuls.c | 23 -
arch/nds32/math-emu/fnegd.c | 21 -
arch/nds32/math-emu/fnegs.c | 21 -
arch/nds32/math-emu/fpuemu.c | 406 -----
arch/nds32/math-emu/fs2d.c | 23 -
arch/nds32/math-emu/fs2si.c | 29 -
arch/nds32/math-emu/fs2siz.c | 29 -
arch/nds32/math-emu/fs2ui.c | 29 -
arch/nds32/math-emu/fs2uiz.c | 30 -
arch/nds32/math-emu/fsi2d.c | 22 -
arch/nds32/math-emu/fsi2s.c | 22 -
arch/nds32/math-emu/fsqrtd.c | 21 -
arch/nds32/math-emu/fsqrts.c | 21 -
arch/nds32/math-emu/fsubd.c | 27 -
arch/nds32/math-emu/fsubs.c | 27 -
arch/nds32/math-emu/fui2d.c | 22 -
arch/nds32/math-emu/fui2s.c | 22 -
arch/nds32/mm/Makefile | 10 -
arch/nds32/mm/alignment.c | 578 -------
arch/nds32/mm/cacheflush.c | 338 ----
arch/nds32/mm/extable.c | 16 -
arch/nds32/mm/fault.c | 396 -----
arch/nds32/mm/init.c | 263 ---
arch/nds32/mm/mm-nds32.c | 96 --
arch/nds32/mm/mmap.c | 73 -
arch/nds32/mm/proc.c | 536 ------
arch/nds32/mm/tlb.c | 50 -
drivers/clocksource/Kconfig | 9 -
drivers/clocksource/timer-atcpit100.c | 266 ---
drivers/irqchip/Makefile | 1 -
drivers/irqchip/irq-ativic32.c | 156 --
drivers/net/ethernet/faraday/Kconfig | 12 +-
drivers/video/console/Kconfig | 2 +-
scripts/recordmcount.pl | 3 -
tools/include/asm/barrier.h | 2 -
tools/perf/arch/nds32/Build | 1 -
tools/perf/arch/nds32/util/Build | 1 -
tools/perf/arch/nds32/util/header.c | 29 -
tools/testing/selftests/vDSO/vdso_config.h | 4 -
220 files changed, 6 insertions(+), 15826 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/interrupt-controller/andestech,ativic32.txt
delete mode 100644 Documentation/devicetree/bindings/nds32/andestech-boards
delete mode 100644 Documentation/devicetree/bindings/nds32/atl2c.txt
delete mode 100644 Documentation/devicetree/bindings/nds32/cpus.txt
delete mode 100644 Documentation/devicetree/bindings/perf/nds32v3-pmu.txt
delete mode 100644 Documentation/devicetree/bindings/timer/andestech,atcpit100-timer.txt
delete mode 100644 arch/nds32/Kbuild
delete mode 100644 arch/nds32/Kconfig
delete mode 100644 arch/nds32/Kconfig.cpu
delete mode 100644 arch/nds32/Kconfig.debug
delete mode 100644 arch/nds32/Makefile
delete mode 100644 arch/nds32/boot/.gitignore
delete mode 100644 arch/nds32/boot/Makefile
delete mode 100644 arch/nds32/boot/dts/Makefile
delete mode 100644 arch/nds32/boot/dts/ae3xx.dts
delete mode 100644 arch/nds32/configs/defconfig
delete mode 100644 arch/nds32/include/asm/Kbuild
delete mode 100644 arch/nds32/include/asm/assembler.h
delete mode 100644 arch/nds32/include/asm/barrier.h
delete mode 100644 arch/nds32/include/asm/bitfield.h
delete mode 100644 arch/nds32/include/asm/cache.h
delete mode 100644 arch/nds32/include/asm/cache_info.h
delete mode 100644 arch/nds32/include/asm/cacheflush.h
delete mode 100644 arch/nds32/include/asm/current.h
delete mode 100644 arch/nds32/include/asm/delay.h
delete mode 100644 arch/nds32/include/asm/elf.h
delete mode 100644 arch/nds32/include/asm/fixmap.h
delete mode 100644 arch/nds32/include/asm/fpu.h
delete mode 100644 arch/nds32/include/asm/fpuemu.h
delete mode 100644 arch/nds32/include/asm/ftrace.h
delete mode 100644 arch/nds32/include/asm/futex.h
delete mode 100644 arch/nds32/include/asm/highmem.h
delete mode 100644 arch/nds32/include/asm/io.h
delete mode 100644 arch/nds32/include/asm/irqflags.h
delete mode 100644 arch/nds32/include/asm/l2_cache.h
delete mode 100644 arch/nds32/include/asm/linkage.h
delete mode 100644 arch/nds32/include/asm/memory.h
delete mode 100644 arch/nds32/include/asm/mmu.h
delete mode 100644 arch/nds32/include/asm/mmu_context.h
delete mode 100644 arch/nds32/include/asm/nds32.h
delete mode 100644 arch/nds32/include/asm/nds32_fpu_inst.h
delete mode 100644 arch/nds32/include/asm/page.h
delete mode 100644 arch/nds32/include/asm/perf_event.h
delete mode 100644 arch/nds32/include/asm/pgalloc.h
delete mode 100644 arch/nds32/include/asm/pgtable.h
delete mode 100644 arch/nds32/include/asm/pmu.h
delete mode 100644 arch/nds32/include/asm/proc-fns.h
delete mode 100644 arch/nds32/include/asm/processor.h
delete mode 100644 arch/nds32/include/asm/ptrace.h
delete mode 100644 arch/nds32/include/asm/sfp-machine.h
delete mode 100644 arch/nds32/include/asm/shmparam.h
delete mode 100644 arch/nds32/include/asm/stacktrace.h
delete mode 100644 arch/nds32/include/asm/string.h
delete mode 100644 arch/nds32/include/asm/suspend.h
delete mode 100644 arch/nds32/include/asm/swab.h
delete mode 100644 arch/nds32/include/asm/syscall.h
delete mode 100644 arch/nds32/include/asm/syscalls.h
delete mode 100644 arch/nds32/include/asm/thread_info.h
delete mode 100644 arch/nds32/include/asm/tlb.h
delete mode 100644 arch/nds32/include/asm/tlbflush.h
delete mode 100644 arch/nds32/include/asm/uaccess.h
delete mode 100644 arch/nds32/include/asm/unistd.h
delete mode 100644 arch/nds32/include/asm/vdso.h
delete mode 100644 arch/nds32/include/asm/vdso_datapage.h
delete mode 100644 arch/nds32/include/asm/vdso_timer_info.h
delete mode 100644 arch/nds32/include/asm/vermagic.h
delete mode 100644 arch/nds32/include/asm/vmalloc.h
delete mode 100644 arch/nds32/include/uapi/asm/Kbuild
delete mode 100644 arch/nds32/include/uapi/asm/auxvec.h
delete mode 100644 arch/nds32/include/uapi/asm/byteorder.h
delete mode 100644 arch/nds32/include/uapi/asm/cachectl.h
delete mode 100644 arch/nds32/include/uapi/asm/fp_udfiex_crtl.h
delete mode 100644 arch/nds32/include/uapi/asm/param.h
delete mode 100644 arch/nds32/include/uapi/asm/ptrace.h
delete mode 100644 arch/nds32/include/uapi/asm/sigcontext.h
delete mode 100644 arch/nds32/include/uapi/asm/unistd.h
delete mode 100644 arch/nds32/kernel/.gitignore
delete mode 100644 arch/nds32/kernel/Makefile
delete mode 100644 arch/nds32/kernel/asm-offsets.c
delete mode 100644 arch/nds32/kernel/atl2c.c
delete mode 100644 arch/nds32/kernel/cacheinfo.c
delete mode 100644 arch/nds32/kernel/devtree.c
delete mode 100644 arch/nds32/kernel/dma.c
delete mode 100644 arch/nds32/kernel/ex-entry.S
delete mode 100644 arch/nds32/kernel/ex-exit.S
delete mode 100644 arch/nds32/kernel/ex-scall.S
delete mode 100644 arch/nds32/kernel/fpu.c
delete mode 100644 arch/nds32/kernel/ftrace.c
delete mode 100644 arch/nds32/kernel/head.S
delete mode 100644 arch/nds32/kernel/irq.c
delete mode 100644 arch/nds32/kernel/module.c
delete mode 100644 arch/nds32/kernel/nds32_ksyms.c
delete mode 100644 arch/nds32/kernel/perf_event_cpu.c
delete mode 100644 arch/nds32/kernel/pm.c
delete mode 100644 arch/nds32/kernel/process.c
delete mode 100644 arch/nds32/kernel/ptrace.c
delete mode 100644 arch/nds32/kernel/setup.c
delete mode 100644 arch/nds32/kernel/signal.c
delete mode 100644 arch/nds32/kernel/sleep.S
delete mode 100644 arch/nds32/kernel/stacktrace.c
delete mode 100644 arch/nds32/kernel/sys_nds32.c
delete mode 100644 arch/nds32/kernel/syscall_table.c
delete mode 100644 arch/nds32/kernel/time.c
delete mode 100644 arch/nds32/kernel/traps.c
delete mode 100644 arch/nds32/kernel/vdso.c
delete mode 100644 arch/nds32/kernel/vdso/.gitignore
delete mode 100644 arch/nds32/kernel/vdso/Makefile
delete mode 100644 arch/nds32/kernel/vdso/datapage.S
delete mode 100755 arch/nds32/kernel/vdso/gen_vdso_offsets.sh
delete mode 100644 arch/nds32/kernel/vdso/gettimeofday.c
delete mode 100644 arch/nds32/kernel/vdso/note.S
delete mode 100644 arch/nds32/kernel/vdso/sigreturn.S
delete mode 100644 arch/nds32/kernel/vdso/vdso.S
delete mode 100644 arch/nds32/kernel/vdso/vdso.lds.S
delete mode 100644 arch/nds32/kernel/vmlinux.lds.S
delete mode 100644 arch/nds32/lib/Makefile
delete mode 100644 arch/nds32/lib/clear_user.S
delete mode 100644 arch/nds32/lib/copy_from_user.S
delete mode 100644 arch/nds32/lib/copy_page.S
delete mode 100644 arch/nds32/lib/copy_template.S
delete mode 100644 arch/nds32/lib/copy_to_user.S
delete mode 100644 arch/nds32/lib/memcpy.S
delete mode 100644 arch/nds32/lib/memmove.S
delete mode 100644 arch/nds32/lib/memset.S
delete mode 100644 arch/nds32/lib/memzero.S
delete mode 100644 arch/nds32/math-emu/Makefile
delete mode 100644 arch/nds32/math-emu/faddd.c
delete mode 100644 arch/nds32/math-emu/fadds.c
delete mode 100644 arch/nds32/math-emu/fcmpd.c
delete mode 100644 arch/nds32/math-emu/fcmps.c
delete mode 100644 arch/nds32/math-emu/fd2s.c
delete mode 100644 arch/nds32/math-emu/fd2si.c
delete mode 100644 arch/nds32/math-emu/fd2siz.c
delete mode 100644 arch/nds32/math-emu/fd2ui.c
delete mode 100644 arch/nds32/math-emu/fd2uiz.c
delete mode 100644 arch/nds32/math-emu/fdivd.c
delete mode 100644 arch/nds32/math-emu/fdivs.c
delete mode 100644 arch/nds32/math-emu/fmuld.c
delete mode 100644 arch/nds32/math-emu/fmuls.c
delete mode 100644 arch/nds32/math-emu/fnegd.c
delete mode 100644 arch/nds32/math-emu/fnegs.c
delete mode 100644 arch/nds32/math-emu/fpuemu.c
delete mode 100644 arch/nds32/math-emu/fs2d.c
delete mode 100644 arch/nds32/math-emu/fs2si.c
delete mode 100644 arch/nds32/math-emu/fs2siz.c
delete mode 100644 arch/nds32/math-emu/fs2ui.c
delete mode 100644 arch/nds32/math-emu/fs2uiz.c
delete mode 100644 arch/nds32/math-emu/fsi2d.c
delete mode 100644 arch/nds32/math-emu/fsi2s.c
delete mode 100644 arch/nds32/math-emu/fsqrtd.c
delete mode 100644 arch/nds32/math-emu/fsqrts.c
delete mode 100644 arch/nds32/math-emu/fsubd.c
delete mode 100644 arch/nds32/math-emu/fsubs.c
delete mode 100644 arch/nds32/math-emu/fui2d.c
delete mode 100644 arch/nds32/math-emu/fui2s.c
delete mode 100644 arch/nds32/mm/Makefile
delete mode 100644 arch/nds32/mm/alignment.c
delete mode 100644 arch/nds32/mm/cacheflush.c
delete mode 100644 arch/nds32/mm/extable.c
delete mode 100644 arch/nds32/mm/fault.c
delete mode 100644 arch/nds32/mm/init.c
delete mode 100644 arch/nds32/mm/mm-nds32.c
delete mode 100644 arch/nds32/mm/mmap.c
delete mode 100644 arch/nds32/mm/proc.c
delete mode 100644 arch/nds32/mm/tlb.c
delete mode 100644 drivers/clocksource/timer-atcpit100.c
delete mode 100644 drivers/irqchip/irq-ativic32.c
delete mode 100644 tools/perf/arch/nds32/Build
delete mode 100644 tools/perf/arch/nds32/util/Build
delete mode 100644 tools/perf/arch/nds32/util/header.c
diff --git a/Documentation/devicetree/bindings/interrupt-controller/andestech,ativic32.txt b/Documentation/devicetree/bindings/interrupt-controller/andestech,ativic32.txt
deleted file mode 100644
index f4b4193d830e..000000000000
--- a/Documentation/devicetree/bindings/interrupt-controller/andestech,ativic32.txt
+++ /dev/null
@@ -1,19 +0,0 @@
-* Andestech Internal Vector Interrupt Controller
-
-The Internal Vector Interrupt Controller (IVIC) is a basic interrupt controller
-suitable for a simpler SoC platform not requiring a more sophisticated and
-bigger External Vector Interrupt Controller.
-
-
-Main node required properties:
-
-- compatible : should at least contain "andestech,ativic32".
-- interrupt-controller : Identifies the node as an interrupt controller
-- #interrupt-cells: 1 cells and refer to interrupt-controller/interrupts
-
-Examples:
- intc: interrupt-controller {
- compatible = "andestech,ativic32";
- #interrupt-cells = <1>;
- interrupt-controller;
- };
diff --git a/Documentation/devicetree/bindings/nds32/andestech-boards b/Documentation/devicetree/bindings/nds32/andestech-boards
deleted file mode 100644
index f5d75693e3c7..000000000000
--- a/Documentation/devicetree/bindings/nds32/andestech-boards
+++ /dev/null
@@ -1,40 +0,0 @@
-Andestech(nds32) AE3XX Platform
------------------------------------------------------------------------------
-The AE3XX prototype demonstrates the AE3XX example platform on the FPGA. It
-is composed of one Andestech(nds32) processor and AE3XX.
-
-Required properties (in root node):
-- compatible = "andestech,ae3xx";
-
-Example:
-/dts-v1/;
-/ {
- compatible = "andestech,ae3xx";
- #address-cells = <1>;
- #size-cells = <1>;
- interrupt-parent = <&intc>;
-};
-
-Andestech(nds32) AG101P Platform
------------------------------------------------------------------------------
-AG101P is a generic SoC Platform IP that works with any of Andestech(nds32)
-processors to provide a cost-effective and high performance solution for
-majority of embedded systems in variety of application domains. Users may
-simply attach their IP on one of the system buses together with certain glue
-logics to complete a SoC solution for a specific application. With
-comprehensive simulation and design environments, users may evaluate the
-system performance of their applications and track bugs of their designs
-efficiently. The optional hardware development platform further provides real
-system environment for early prototyping and software/hardware co-development.
-
-Required properties (in root node):
- compatible = "andestech,ag101p";
-
-Example:
-/dts-v1/;
-/ {
- compatible = "andestech,ag101p";
- #address-cells = <1>;
- #size-cells = <1>;
- interrupt-parent = <&intc>;
-};
diff --git a/Documentation/devicetree/bindings/nds32/atl2c.txt b/Documentation/devicetree/bindings/nds32/atl2c.txt
deleted file mode 100644
index da8ab8e7ae9b..000000000000
--- a/Documentation/devicetree/bindings/nds32/atl2c.txt
+++ /dev/null
@@ -1,28 +0,0 @@
-* Andestech L2 cache Controller
-
-The level-2 cache controller plays an important role in reducing memory latency
-for high performance systems, such as thoese designs with AndesCore processors.
-Level-2 cache controller in general enhances overall system performance
-signigicantly and the system power consumption might be reduced as well by
-reducing DRAM accesses.
-
-This binding specifies what properties must be available in the device tree
-representation of an Andestech L2 cache controller.
-
-Required properties:
- - compatible:
- Usage: required
- Value type: <string>
- Definition: "andestech,atl2c"
- - reg : Physical base address and size of cache controller's memory mapped
- - cache-unified : Specifies the cache is a unified cache.
- - cache-level : Should be set to 2 for a level 2 cache.
-
-* Example
-
- cache-controller@...00000 {
- compatible = "andestech,atl2c";
- reg = <0xe0500000 0x1000>;
- cache-unified;
- cache-level = <2>;
- };
diff --git a/Documentation/devicetree/bindings/nds32/cpus.txt b/Documentation/devicetree/bindings/nds32/cpus.txt
deleted file mode 100644
index 6f9e311b6589..000000000000
--- a/Documentation/devicetree/bindings/nds32/cpus.txt
+++ /dev/null
@@ -1,38 +0,0 @@
-* Andestech Processor Binding
-
-This binding specifies what properties must be available in the device tree
-representation of a Andestech Processor Core, which is the root node in the
-tree.
-
-Required properties:
-
- - compatible:
- Usage: required
- Value type: <string>
- Definition: Should be "andestech,<core_name>", "andestech,nds32v3" as fallback.
- Must contain "andestech,nds32v3" as the most generic value, in addition to
- one of the following identifiers for a particular CPU core:
- "andestech,n13"
- "andestech,n15"
- "andestech,d15"
- "andestech,n10"
- "andestech,d10"
- - device_type
- Usage: required
- Value type: <string>
- Definition: must be "cpu"
- - reg: Contains CPU index.
- - clock-frequency: Contains the clock frequency for CPU, in Hz.
-
-* Examples
-
-/ {
- cpus {
- cpu@0 {
- device_type = "cpu";
- compatible = "andestech,n13", "andestech,nds32v3";
- reg = <0x0>;
- clock-frequency = <60000000>
- };
- };
-};
diff --git a/Documentation/devicetree/bindings/perf/nds32v3-pmu.txt b/Documentation/devicetree/bindings/perf/nds32v3-pmu.txt
deleted file mode 100644
index 1bd15785b4ae..000000000000
--- a/Documentation/devicetree/bindings/perf/nds32v3-pmu.txt
+++ /dev/null
@@ -1,17 +0,0 @@
-* NDS32 Performance Monitor Units
-
-NDS32 core have a PMU for counting cpu and cache events like cache misses.
-The NDS32 PMU representation in the device tree should be done as under:
-
-Required properties:
-
-- compatible :
- "andestech,nds32v3-pmu"
-
-- interrupts : The interrupt number for NDS32 PMU is 13.
-
-Example:
-pmu{
- compatible = "andestech,nds32v3-pmu";
- interrupts = <13>;
-}
diff --git a/Documentation/devicetree/bindings/timer/andestech,atcpit100-timer.txt b/Documentation/devicetree/bindings/timer/andestech,atcpit100-timer.txt
deleted file mode 100644
index 4c9ea5989e35..000000000000
--- a/Documentation/devicetree/bindings/timer/andestech,atcpit100-timer.txt
+++ /dev/null
@@ -1,33 +0,0 @@
-Andestech ATCPIT100 timer
-------------------------------------------------------------------
-ATCPIT100 is a generic IP block from Andes Technology, embedded in
-Andestech AE3XX platforms and other designs.
-
-This timer is a set of compact multi-function timers, which can be
-used as pulse width modulators (PWM) as well as simple timers.
-
-It supports up to 4 PIT channels. Each PIT channel is a
-multi-function timer and provide the following usage scenarios:
-One 32-bit timer
-Two 16-bit timers
-Four 8-bit timers
-One 16-bit PWM
-One 16-bit timer and one 8-bit PWM
-Two 8-bit timer and one 8-bit PWM
-
-Required properties:
-- compatible : Should be "andestech,atcpit100"
-- reg : Address and length of the register set
-- interrupts : Reference to the timer interrupt
-- clocks : a clock to provide the tick rate for "andestech,atcpit100"
-- clock-names : should be "PCLK" for the peripheral clock source.
-
-Examples:
-
-timer0: timer@...00000 {
- compatible = "andestech,atcpit100";
- reg = <0xf0400000 0x1000>;
- interrupts = <2>;
- clocks = <&apb>;
- clock-names = "PCLK";
-};
diff --git a/Documentation/features/core/cBPF-JIT/arch-support.txt b/Documentation/features/core/cBPF-JIT/arch-support.txt
index e59b5215402d..77bd6974dd6d 100644
--- a/Documentation/features/core/cBPF-JIT/arch-support.txt
+++ b/Documentation/features/core/cBPF-JIT/arch-support.txt
@@ -17,7 +17,6 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
- | nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
diff --git a/Documentation/features/core/eBPF-JIT/arch-support.txt b/Documentation/features/core/eBPF-JIT/arch-support.txt
index dcbd8679f514..d5ab547b2be6 100644
--- a/Documentation/features/core/eBPF-JIT/arch-support.txt
+++ b/Documentation/features/core/eBPF-JIT/arch-support.txt
@@ -17,7 +17,6 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
- | nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
diff --git a/Documentation/features/core/generic-idle-thread/arch-support.txt b/Documentation/features/core/generic-idle-thread/arch-support.txt
index 4efcba7b5239..ddb3762ca7f5 100644
--- a/Documentation/features/core/generic-idle-thread/arch-support.txt
+++ b/Documentation/features/core/generic-idle-thread/arch-support.txt
@@ -17,7 +17,6 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
- | nds32: | TODO |
| nios2: | TODO |
| openrisc: | ok |
| parisc: | ok |
diff --git a/Documentation/features/core/jump-labels/arch-support.txt b/Documentation/features/core/jump-labels/arch-support.txt
index 0c801d1bd2da..d5380ef68713 100644
--- a/Documentation/features/core/jump-labels/arch-support.txt
+++ b/Documentation/features/core/jump-labels/arch-support.txt
@@ -17,7 +17,6 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
- | nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | ok |
diff --git a/Documentation/features/core/thread-info-in-task/arch-support.txt b/Documentation/features/core/thread-info-in-task/arch-support.txt
index bc74d8beea72..0654ba3a42ff 100644
--- a/Documentation/features/core/thread-info-in-task/arch-support.txt
+++ b/Documentation/features/core/thread-info-in-task/arch-support.txt
@@ -17,7 +17,6 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
- | nds32: | ok |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | ok |
diff --git a/Documentation/features/core/tracehook/arch-support.txt b/Documentation/features/core/tracehook/arch-support.txt
index af34308fce7f..8e95dc0c7b90 100644
--- a/Documentation/features/core/tracehook/arch-support.txt
+++ b/Documentation/features/core/tracehook/arch-support.txt
@@ -17,7 +17,6 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
- | nds32: | ok |
| nios2: | ok |
| openrisc: | ok |
| parisc: | ok |
diff --git a/Documentation/features/debug/KASAN/arch-support.txt b/Documentation/features/debug/KASAN/arch-support.txt
index c244ac7eee26..407ca1d91242 100644
--- a/Documentation/features/debug/KASAN/arch-support.txt
+++ b/Documentation/features/debug/KASAN/arch-support.txt
@@ -17,7 +17,6 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
- | nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
diff --git a/Documentation/features/debug/debug-vm-pgtable/arch-support.txt b/Documentation/features/debug/debug-vm-pgtable/arch-support.txt
index fa83403b4aec..83eafe1a7f68 100644
--- a/Documentation/features/debug/debug-vm-pgtable/arch-support.txt
+++ b/Documentation/features/debug/debug-vm-pgtable/arch-support.txt
@@ -17,7 +17,6 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
- | nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
diff --git a/Documentation/features/debug/gcov-profile-all/arch-support.txt b/Documentation/features/debug/gcov-profile-all/arch-support.txt
index b39c1a5de3f3..49e0dda11227 100644
--- a/Documentation/features/debug/gcov-profile-all/arch-support.txt
+++ b/Documentation/features/debug/gcov-profile-all/arch-support.txt
@@ -17,7 +17,6 @@
| m68k: | TODO |
| microblaze: | ok |
| mips: | ok |
- | nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
diff --git a/Documentation/features/debug/kcov/arch-support.txt b/Documentation/features/debug/kcov/arch-support.txt
index 7e44013cc320..3d34b724ddae 100644
--- a/Documentation/features/debug/kcov/arch-support.txt
+++ b/Documentation/features/debug/kcov/arch-support.txt
@@ -17,7 +17,6 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
- | nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
diff --git a/Documentation/features/debug/kgdb/arch-support.txt b/Documentation/features/debug/kgdb/arch-support.txt
index 2cb0576f9180..7aa073d908c5 100644
--- a/Documentation/features/debug/kgdb/arch-support.txt
+++ b/Documentation/features/debug/kgdb/arch-support.txt
@@ -17,7 +17,6 @@
| m68k: | TODO |
| microblaze: | ok |
| mips: | ok |
- | nds32: | TODO |
| nios2: | ok |
| openrisc: | TODO |
| parisc: | ok |
diff --git a/Documentation/features/debug/kmemleak/arch-support.txt b/Documentation/features/debug/kmemleak/arch-support.txt
index e9ac415f8aec..5c784ff9768a 100644
--- a/Documentation/features/debug/kmemleak/arch-support.txt
+++ b/Documentation/features/debug/kmemleak/arch-support.txt
@@ -17,7 +17,6 @@
| m68k: | TODO |
| microblaze: | ok |
| mips: | ok |
- | nds32: | ok |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
diff --git a/Documentation/features/debug/kprobes-on-ftrace/arch-support.txt b/Documentation/features/debug/kprobes-on-ftrace/arch-support.txt
index 96156e8802a7..a1f6e98c6b1f 100644
--- a/Documentation/features/debug/kprobes-on-ftrace/arch-support.txt
+++ b/Documentation/features/debug/kprobes-on-ftrace/arch-support.txt
@@ -17,7 +17,6 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
- | nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | ok |
diff --git a/Documentation/features/debug/kprobes/arch-support.txt b/Documentation/features/debug/kprobes/arch-support.txt
index ee95ed61909a..e7e7015175e7 100644
--- a/Documentation/features/debug/kprobes/arch-support.txt
+++ b/Documentation/features/debug/kprobes/arch-support.txt
@@ -17,7 +17,6 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
- | nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | ok |
diff --git a/Documentation/features/debug/kretprobes/arch-support.txt b/Documentation/features/debug/kretprobes/arch-support.txt
index 612cb97d47b8..838eb53a6fa5 100644
--- a/Documentation/features/debug/kretprobes/arch-support.txt
+++ b/Documentation/features/debug/kretprobes/arch-support.txt
@@ -17,7 +17,6 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
- | nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | ok |
diff --git a/Documentation/features/debug/optprobes/arch-support.txt b/Documentation/features/debug/optprobes/arch-support.txt
index d6ff141a6122..6358b00b1723 100644
--- a/Documentation/features/debug/optprobes/arch-support.txt
+++ b/Documentation/features/debug/optprobes/arch-support.txt
@@ -17,7 +17,6 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
- | nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
diff --git a/Documentation/features/debug/stackprotector/arch-support.txt b/Documentation/features/debug/stackprotector/arch-support.txt
index ad4de22a71ab..f6cdf781305f 100644
--- a/Documentation/features/debug/stackprotector/arch-support.txt
+++ b/Documentation/features/debug/stackprotector/arch-support.txt
@@ -17,7 +17,6 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
- | nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
diff --git a/Documentation/features/debug/uprobes/arch-support.txt b/Documentation/features/debug/uprobes/arch-support.txt
index 8bd5548a4485..0b871e797d24 100644
--- a/Documentation/features/debug/uprobes/arch-support.txt
+++ b/Documentation/features/debug/uprobes/arch-support.txt
@@ -17,7 +17,6 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
- | nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
diff --git a/Documentation/features/debug/user-ret-profiler/arch-support.txt b/Documentation/features/debug/user-ret-profiler/arch-support.txt
index 2a3fe812a5fa..a2feda7adff1 100644
--- a/Documentation/features/debug/user-ret-profiler/arch-support.txt
+++ b/Documentation/features/debug/user-ret-profiler/arch-support.txt
@@ -17,7 +17,6 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
- | nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
diff --git a/Documentation/features/io/dma-contiguous/arch-support.txt b/Documentation/features/io/dma-contiguous/arch-support.txt
index bece89586efa..9b407f26d45e 100644
--- a/Documentation/features/io/dma-contiguous/arch-support.txt
+++ b/Documentation/features/io/dma-contiguous/arch-support.txt
@@ -17,7 +17,6 @@
| m68k: | TODO |
| microblaze: | ok |
| mips: | ok |
- | nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
diff --git a/Documentation/features/locking/cmpxchg-local/arch-support.txt b/Documentation/features/locking/cmpxchg-local/arch-support.txt
index 52bdda004f5c..090520b0e02d 100644
--- a/Documentation/features/locking/cmpxchg-local/arch-support.txt
+++ b/Documentation/features/locking/cmpxchg-local/arch-support.txt
@@ -17,7 +17,6 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
- | nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
diff --git a/Documentation/features/locking/lockdep/arch-support.txt b/Documentation/features/locking/lockdep/arch-support.txt
index a8cd163c8b7e..6d840b103537 100644
--- a/Documentation/features/locking/lockdep/arch-support.txt
+++ b/Documentation/features/locking/lockdep/arch-support.txt
@@ -17,7 +17,6 @@
| m68k: | TODO |
| microblaze: | ok |
| mips: | ok |
- | nds32: | ok |
| nios2: | TODO |
| openrisc: | ok |
| parisc: | TODO |
diff --git a/Documentation/features/locking/queued-rwlocks/arch-support.txt b/Documentation/features/locking/queued-rwlocks/arch-support.txt
index 8c85949752b3..de586be05d64 100644
--- a/Documentation/features/locking/queued-rwlocks/arch-support.txt
+++ b/Documentation/features/locking/queued-rwlocks/arch-support.txt
@@ -17,7 +17,6 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
- | nds32: | TODO |
| nios2: | TODO |
| openrisc: | ok |
| parisc: | TODO |
diff --git a/Documentation/features/locking/queued-spinlocks/arch-support.txt b/Documentation/features/locking/queued-spinlocks/arch-support.txt
index 5f4e1b3841af..29d0c8b7b1c5 100644
--- a/Documentation/features/locking/queued-spinlocks/arch-support.txt
+++ b/Documentation/features/locking/queued-spinlocks/arch-support.txt
@@ -17,7 +17,6 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
- | nds32: | TODO |
| nios2: | TODO |
| openrisc: | ok |
| parisc: | TODO |
diff --git a/Documentation/features/perf/kprobes-event/arch-support.txt b/Documentation/features/perf/kprobes-event/arch-support.txt
index 78f3fe080f0e..881a8a50e41e 100644
--- a/Documentation/features/perf/kprobes-event/arch-support.txt
+++ b/Documentation/features/perf/kprobes-event/arch-support.txt
@@ -17,7 +17,6 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
- | nds32: | ok |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | ok |
diff --git a/Documentation/features/perf/perf-regs/arch-support.txt b/Documentation/features/perf/perf-regs/arch-support.txt
index 5bf3b1854a1f..7639a796a8e1 100644
--- a/Documentation/features/perf/perf-regs/arch-support.txt
+++ b/Documentation/features/perf/perf-regs/arch-support.txt
@@ -17,7 +17,6 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
- | nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
diff --git a/Documentation/features/perf/perf-stackdump/arch-support.txt b/Documentation/features/perf/perf-stackdump/arch-support.txt
index d88659bb4fc1..df1a4c679a45 100644
--- a/Documentation/features/perf/perf-stackdump/arch-support.txt
+++ b/Documentation/features/perf/perf-stackdump/arch-support.txt
@@ -17,7 +17,6 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
- | nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
diff --git a/Documentation/features/sched/membarrier-sync-core/arch-support.txt b/Documentation/features/sched/membarrier-sync-core/arch-support.txt
index 883d33b265d6..51b7afc937f1 100644
--- a/Documentation/features/sched/membarrier-sync-core/arch-support.txt
+++ b/Documentation/features/sched/membarrier-sync-core/arch-support.txt
@@ -40,7 +40,6 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
- | nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
diff --git a/Documentation/features/sched/numa-balancing/arch-support.txt b/Documentation/features/sched/numa-balancing/arch-support.txt
index 9affb7c2c500..d0e308135434 100644
--- a/Documentation/features/sched/numa-balancing/arch-support.txt
+++ b/Documentation/features/sched/numa-balancing/arch-support.txt
@@ -17,7 +17,6 @@
| m68k: | .. |
| microblaze: | .. |
| mips: | TODO |
- | nds32: | TODO |
| nios2: | .. |
| openrisc: | .. |
| parisc: | .. |
diff --git a/Documentation/features/seccomp/seccomp-filter/arch-support.txt b/Documentation/features/seccomp/seccomp-filter/arch-support.txt
index 26eec58ab819..05613c5ff560 100644
--- a/Documentation/features/seccomp/seccomp-filter/arch-support.txt
+++ b/Documentation/features/seccomp/seccomp-filter/arch-support.txt
@@ -17,7 +17,6 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
- | nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | ok |
diff --git a/Documentation/features/time/arch-tick-broadcast/arch-support.txt b/Documentation/features/time/arch-tick-broadcast/arch-support.txt
index 8dcaab070c7b..b4c96ebab7e3 100644
--- a/Documentation/features/time/arch-tick-broadcast/arch-support.txt
+++ b/Documentation/features/time/arch-tick-broadcast/arch-support.txt
@@ -17,7 +17,6 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
- | nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
diff --git a/Documentation/features/time/clockevents/arch-support.txt b/Documentation/features/time/clockevents/arch-support.txt
index 9a81cb03b1fd..3f6976052e2a 100644
--- a/Documentation/features/time/clockevents/arch-support.txt
+++ b/Documentation/features/time/clockevents/arch-support.txt
@@ -17,7 +17,6 @@
| m68k: | TODO |
| microblaze: | ok |
| mips: | ok |
- | nds32: | ok |
| nios2: | ok |
| openrisc: | ok |
| parisc: | TODO |
diff --git a/Documentation/features/time/context-tracking/arch-support.txt b/Documentation/features/time/context-tracking/arch-support.txt
index 4ed116c2ec39..bb1c1801553e 100644
--- a/Documentation/features/time/context-tracking/arch-support.txt
+++ b/Documentation/features/time/context-tracking/arch-support.txt
@@ -17,7 +17,6 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
- | nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
diff --git a/Documentation/features/time/irq-time-acct/arch-support.txt b/Documentation/features/time/irq-time-acct/arch-support.txt
index bc30c15557c7..3cea25b80c8c 100644
--- a/Documentation/features/time/irq-time-acct/arch-support.txt
+++ b/Documentation/features/time/irq-time-acct/arch-support.txt
@@ -17,7 +17,6 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
- | nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | .. |
diff --git a/Documentation/features/time/virt-cpuacct/arch-support.txt b/Documentation/features/time/virt-cpuacct/arch-support.txt
index 050de43bbbb9..5163a60a1c1e 100644
--- a/Documentation/features/time/virt-cpuacct/arch-support.txt
+++ b/Documentation/features/time/virt-cpuacct/arch-support.txt
@@ -17,7 +17,6 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
- | nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | ok |
diff --git a/Documentation/features/vm/ELF-ASLR/arch-support.txt b/Documentation/features/vm/ELF-ASLR/arch-support.txt
index 2949c99fbb2f..73ec761f1e27 100644
--- a/Documentation/features/vm/ELF-ASLR/arch-support.txt
+++ b/Documentation/features/vm/ELF-ASLR/arch-support.txt
@@ -17,7 +17,6 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
- | nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | ok |
diff --git a/Documentation/features/vm/PG_uncached/arch-support.txt b/Documentation/features/vm/PG_uncached/arch-support.txt
index 6cde38458596..9066a90b38d9 100644
--- a/Documentation/features/vm/PG_uncached/arch-support.txt
+++ b/Documentation/features/vm/PG_uncached/arch-support.txt
@@ -17,7 +17,6 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
- | nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
diff --git a/Documentation/features/vm/THP/arch-support.txt b/Documentation/features/vm/THP/arch-support.txt
index 7dbd6967b37e..f717ab792e5a 100644
--- a/Documentation/features/vm/THP/arch-support.txt
+++ b/Documentation/features/vm/THP/arch-support.txt
@@ -17,7 +17,6 @@
| m68k: | .. |
| microblaze: | .. |
| mips: | ok |
- | nds32: | TODO |
| nios2: | .. |
| openrisc: | .. |
| parisc: | TODO |
diff --git a/Documentation/features/vm/TLB/arch-support.txt b/Documentation/features/vm/TLB/arch-support.txt
index e1c3a4c4d107..6fa76a37f299 100644
--- a/Documentation/features/vm/TLB/arch-support.txt
+++ b/Documentation/features/vm/TLB/arch-support.txt
@@ -17,7 +17,6 @@
| m68k: | .. |
| microblaze: | .. |
| mips: | TODO |
- | nds32: | TODO |
| nios2: | .. |
| openrisc: | .. |
| parisc: | TODO |
diff --git a/Documentation/features/vm/huge-vmap/arch-support.txt b/Documentation/features/vm/huge-vmap/arch-support.txt
index bc53905a0306..6e1792ee37fe 100644
--- a/Documentation/features/vm/huge-vmap/arch-support.txt
+++ b/Documentation/features/vm/huge-vmap/arch-support.txt
@@ -17,7 +17,6 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
- | nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
diff --git a/Documentation/features/vm/ioremap_prot/arch-support.txt b/Documentation/features/vm/ioremap_prot/arch-support.txt
index 9a0c8783b84d..a6dcbe5f47b6 100644
--- a/Documentation/features/vm/ioremap_prot/arch-support.txt
+++ b/Documentation/features/vm/ioremap_prot/arch-support.txt
@@ -17,7 +17,6 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
- | nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
diff --git a/Documentation/features/vm/pte_special/arch-support.txt b/Documentation/features/vm/pte_special/arch-support.txt
index 40b969f3a6bb..376477749c42 100644
--- a/Documentation/features/vm/pte_special/arch-support.txt
+++ b/Documentation/features/vm/pte_special/arch-support.txt
@@ -17,7 +17,6 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
- | nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
diff --git a/MAINTAINERS b/MAINTAINERS
index 1ba1e4af2cbc..41992140b155 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1229,18 +1229,6 @@ S: Supported
F: drivers/clk/analogbits/*
F: include/linux/clk/analogbits*
-ANDES ARCHITECTURE
-M: Nick Hu <nickhu@...estech.com>
-M: Greentime Hu <green.hu@...il.com>
-M: Vincent Chen <deanbo422@...il.com>
-S: Supported
-T: git https://git.kernel.org/pub/scm/linux/kernel/git/greentime/linux.git
-F: Documentation/devicetree/bindings/interrupt-controller/andestech,ativic32.txt
-F: Documentation/devicetree/bindings/nds32/
-F: arch/nds32/
-N: nds32
-K: nds32
-
ANDROID CONFIG FRAGMENTS
M: Rob Herring <robh@...nel.org>
S: Supported
diff --git a/arch/nds32/Kbuild b/arch/nds32/Kbuild
deleted file mode 100644
index 4e39f7abdeb6..000000000000
--- a/arch/nds32/Kbuild
+++ /dev/null
@@ -1,4 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-
-# for cleaning
-subdir- += boot
diff --git a/arch/nds32/Kconfig b/arch/nds32/Kconfig
deleted file mode 100644
index 4d1421b18734..000000000000
--- a/arch/nds32/Kconfig
+++ /dev/null
@@ -1,102 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-#
-# For a description of the syntax of this configuration file,
-# see Documentation/kbuild/kconfig-language.rst.
-#
-
-config NDS32
- def_bool y
- select ARCH_32BIT_OFF_T
- select ARCH_HAS_DMA_PREP_COHERENT
- select ARCH_HAS_SYNC_DMA_FOR_CPU
- select ARCH_HAS_SYNC_DMA_FOR_DEVICE
- select ARCH_WANT_FRAME_POINTERS if FTRACE
- select CLKSRC_MMIO
- select CLONE_BACKWARDS
- select COMMON_CLK
- select DMA_DIRECT_REMAP
- select GENERIC_ATOMIC64
- select GENERIC_CPU_DEVICES
- select GENERIC_IRQ_CHIP
- select GENERIC_IRQ_SHOW
- select GENERIC_IOREMAP
- select GENERIC_LIB_ASHLDI3
- select GENERIC_LIB_ASHRDI3
- select GENERIC_LIB_CMPDI2
- select GENERIC_LIB_LSHRDI3
- select GENERIC_LIB_MULDI3
- select GENERIC_LIB_UCMPDI2
- select GENERIC_TIME_VSYSCALL
- select HAVE_ARCH_TRACEHOOK
- select HAVE_DEBUG_KMEMLEAK
- select HAVE_EXIT_THREAD
- select HAVE_REGS_AND_STACK_ACCESS_API
- select HAVE_PERF_EVENTS
- select IRQ_DOMAIN
- select LOCKDEP_SUPPORT
- select MODULES_USE_ELF_RELA
- select OF
- select OF_EARLY_FLATTREE
- select NO_IOPORT_MAP
- select RTC_LIB
- select THREAD_INFO_IN_TASK
- select HAVE_FUNCTION_TRACER
- select HAVE_FUNCTION_GRAPH_TRACER
- select HAVE_FTRACE_MCOUNT_RECORD
- select HAVE_DYNAMIC_FTRACE
- select SET_FS
- select TRACE_IRQFLAGS_SUPPORT
- help
- Andes(nds32) Linux support.
-
-config GENERIC_CALIBRATE_DELAY
- def_bool y
-
-config GENERIC_CSUM
- def_bool y
-
-config GENERIC_HWEIGHT
- def_bool y
-
-config GENERIC_LOCKBREAK
- def_bool y
- depends on PREEMPTION
-
-config STACKTRACE_SUPPORT
- def_bool y
-
-config FIX_EARLYCON_MEM
- def_bool y
-
-config PGTABLE_LEVELS
- default 2
-
-menu "System Type"
-source "arch/nds32/Kconfig.cpu"
-config NR_CPUS
- int
- default 1
-
-config MMU
- def_bool y
-
-config NDS32_BUILTIN_DTB
- string "Builtin DTB"
- default ""
- help
- User can use it to specify the dts of the SoC
-endmenu
-
-menu "Kernel Features"
-source "kernel/Kconfig.hz"
-endmenu
-
-menu "Power management options"
-config SYS_SUPPORTS_APM_EMULATION
- bool
-
-config ARCH_SUSPEND_POSSIBLE
- def_bool y
-
-source "kernel/power/Kconfig"
-endmenu
diff --git a/arch/nds32/Kconfig.cpu b/arch/nds32/Kconfig.cpu
deleted file mode 100644
index c10759952485..000000000000
--- a/arch/nds32/Kconfig.cpu
+++ /dev/null
@@ -1,218 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-comment "Processor Features"
-
-config CPU_BIG_ENDIAN
- def_bool !CPU_LITTLE_ENDIAN
-
-config CPU_LITTLE_ENDIAN
- bool "Little endian"
- default y
-
-config FPU
- bool "FPU support"
- default n
- help
- If FPU ISA is used in user space, this configuration shall be Y to
- enable required support in kernel such as fpu context switch and
- fpu exception handler.
-
- If no FPU ISA is used in user space, say N.
-
-config LAZY_FPU
- bool "lazy FPU support"
- depends on FPU
- default y
- help
- Say Y here to enable the lazy FPU scheme. The lazy FPU scheme can
- enhance system performance by reducing the context switch
- frequency of the FPU register.
-
- For normal case, say Y.
-
-config SUPPORT_DENORMAL_ARITHMETIC
- bool "Denormal arithmetic support"
- depends on FPU
- default n
- help
- Say Y here to enable arithmetic of denormalized number. Enabling
- this feature can enhance the precision for tininess number.
- However, performance loss in float point calculations is
- possibly significant due to additional FPU exception.
-
- If the calculated tolerance for tininess number is not critical,
- say N to prevent performance loss.
-
-config HWZOL
- bool "hardware zero overhead loop support"
- depends on CPU_D10 || CPU_D15
- default n
- help
- A set of Zero-Overhead Loop mechanism is provided to reduce the
- instruction fetch and execution overhead of loop-control instructions.
- It will save 3 registers($LB, $LC, $LE) for context saving if say Y.
- You don't need to save these registers if you can make sure your user
- program doesn't use these registers.
-
- If unsure, say N.
-
-config CPU_CACHE_ALIASING
- bool "Aliasing cache"
- depends on CPU_N10 || CPU_D10 || CPU_N13 || CPU_V3
- default y
- help
- If this CPU is using VIPT data cache and its cache way size is larger
- than page size, say Y. If it is using PIPT data cache, say N.
-
- If unsure, say Y.
-
-choice
- prompt "minimum CPU type"
- default CPU_V3
- help
- The data cache of N15/D15 is implemented as PIPT and it will not cause
- the cache aliasing issue. The rest cpus(N13, N10 and D10) are
- implemented as VIPT data cache. It may cause the cache aliasing issue
- if its cache way size is larger than page size. You can specify the
- CPU type directly or choose CPU_V3 if unsure.
-
- A kernel built for N10 is able to run on N15, D15, N13, N10 or D10.
- A kernel built for N15 is able to run on N15 or D15.
- A kernel built for D10 is able to run on D10 or D15.
- A kernel built for D15 is able to run on D15.
- A kernel built for N13 is able to run on N15, N13 or D15.
-
-config CPU_N15
- bool "AndesCore N15"
-config CPU_N13
- bool "AndesCore N13"
- select CPU_CACHE_ALIASING if ANDES_PAGE_SIZE_4KB
-config CPU_N10
- bool "AndesCore N10"
- select CPU_CACHE_ALIASING
-config CPU_D15
- bool "AndesCore D15"
-config CPU_D10
- bool "AndesCore D10"
- select CPU_CACHE_ALIASING
-config CPU_V3
- bool "AndesCore v3 compatible"
- select CPU_CACHE_ALIASING
-endchoice
-choice
- prompt "Paging -- page size "
- default ANDES_PAGE_SIZE_4KB
-config ANDES_PAGE_SIZE_4KB
- bool "use 4KB page size"
-config ANDES_PAGE_SIZE_8KB
- bool "use 8KB page size"
-endchoice
-
-config CPU_ICACHE_DISABLE
- bool "Disable I-Cache"
- help
- Say Y here to disable the processor instruction cache. Unless
- you have a reason not to or are unsure, say N.
-
-config CPU_DCACHE_DISABLE
- bool "Disable D-Cache"
- help
- Say Y here to disable the processor data cache. Unless
- you have a reason not to or are unsure, say N.
-
-config CPU_DCACHE_WRITETHROUGH
- bool "Force write through D-cache"
- depends on !CPU_DCACHE_DISABLE
- help
- Say Y here to use the data cache in writethrough mode. Unless you
- specifically require this or are unsure, say N.
-
-config WBNA
- bool "WBNA"
- default n
- help
- Say Y here to enable write-back memory with no-write-allocation policy.
-
-config ALIGNMENT_TRAP
- bool "Kernel support unaligned access handling by sw"
- depends on PROC_FS
- default n
- help
- Andes processors cannot load/store information which is not
- naturally aligned on the bus, i.e., a 4 byte load must start at an
- address divisible by 4. On 32-bit Andes processors, these non-aligned
- load/store instructions will be emulated in software if you say Y
- here, which has a severe performance impact. With an IP-only
- configuration it is safe to say N, otherwise say Y.
-
-config HW_SUPPORT_UNALIGNMENT_ACCESS
- bool "Kernel support unaligned access handling by hw"
- depends on !ALIGNMENT_TRAP
- default n
- help
- Andes processors load/store world/half-word instructions can access
- unaligned memory locations without generating the Data Alignment
- Check exceptions. With an IP-only configuration it is safe to say N,
- otherwise say Y.
-
-config HIGHMEM
- bool "High Memory Support"
- depends on MMU && !CPU_CACHE_ALIASING
- select KMAP_LOCAL
- help
- The address space of Andes processors is only 4 Gigabytes large
- and it has to accommodate user address space, kernel address
- space as well as some memory mapped IO. That means that, if you
- have a large amount of physical memory and/or IO, not all of the
- memory can be "permanently mapped" by the kernel. The physical
- memory that is not permanently mapped is called "high memory".
-
- Depending on the selected kernel/user memory split, minimum
- vmalloc space and actual amount of RAM, you may not need this
- option which should result in a slightly faster kernel.
-
- If unsure, say N.
-
-config CACHE_L2
- bool "Support L2 cache"
- default y
- help
- Say Y here to enable L2 cache if your SoC are integrated with L2CC.
- If unsure, say N.
-
-config HW_PRE
- bool "Enable hardware prefetcher"
- default y
- help
- Say Y here to enable hardware prefetcher feature.
- Only when CPU_VER.REV >= 0x09 can support.
-
-menu "Memory configuration"
-
-choice
- prompt "Memory split"
- depends on MMU
- default VMSPLIT_3G_OPT
- help
- Select the desired split between kernel and user memory.
-
- If you are not absolutely sure what you are doing, leave this
- option alone!
-
- config VMSPLIT_3G
- bool "3G/1G user/kernel split"
- config VMSPLIT_3G_OPT
- bool "3G/1G user/kernel split (for full 1G low memory)"
- config VMSPLIT_2G
- bool "2G/2G user/kernel split"
- config VMSPLIT_1G
- bool "1G/3G user/kernel split"
-endchoice
-
-config PAGE_OFFSET
- hex
- default 0x40000000 if VMSPLIT_1G
- default 0x80000000 if VMSPLIT_2G
- default 0xB0000000 if VMSPLIT_3G_OPT
- default 0xC0000000
-
-endmenu
diff --git a/arch/nds32/Kconfig.debug b/arch/nds32/Kconfig.debug
deleted file mode 100644
index 295942fe3fd5..000000000000
--- a/arch/nds32/Kconfig.debug
+++ /dev/null
@@ -1,2 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-# dummy file, do not delete
diff --git a/arch/nds32/Makefile b/arch/nds32/Makefile
deleted file mode 100644
index b33d5d81b6ae..000000000000
--- a/arch/nds32/Makefile
+++ /dev/null
@@ -1,63 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-LDFLAGS_vmlinux := --no-undefined -X
-OBJCOPYFLAGS := -O binary -R .note -R .note.gnu.build-id -R .comment -S
-
-ifdef CONFIG_FUNCTION_TRACER
-arch-y += -malways-save-lp -mno-relax
-endif
-
-# Avoid generating FPU instructions
-arch-y += -mno-ext-fpu-sp -mno-ext-fpu-dp -mfloat-abi=soft
-
-# Enable <nds32_intrinsic.h>
-KBUILD_CFLAGS += -isystem $(shell $(CC) -print-file-name=include)
-KBUILD_CFLAGS += $(call cc-option, -mno-sched-prolog-epilog)
-KBUILD_CFLAGS += -mcmodel=large
-
-KBUILD_CFLAGS +=$(arch-y) $(tune-y)
-KBUILD_AFLAGS +=$(arch-y) $(tune-y)
-
-#Default value
-head-y := arch/nds32/kernel/head.o
-textaddr-y := $(CONFIG_PAGE_OFFSET)+0xc000
-
-TEXTADDR := $(textaddr-y)
-
-export TEXTADDR
-
-
-# If we have a machine-specific directory, then include it in the build.
-core-y += arch/nds32/kernel/ arch/nds32/mm/
-core-$(CONFIG_FPU) += arch/nds32/math-emu/
-libs-y += arch/nds32/lib/
-
-ifdef CONFIG_CPU_LITTLE_ENDIAN
-KBUILD_CFLAGS += $(call cc-option, -EL)
-KBUILD_AFLAGS += $(call cc-option, -EL)
-KBUILD_LDFLAGS += $(call cc-option, -EL)
-CHECKFLAGS += -D__NDS32_EL__
-else
-KBUILD_CFLAGS += $(call cc-option, -EB)
-KBUILD_AFLAGS += $(call cc-option, -EB)
-KBUILD_LDFLAGS += $(call cc-option, -EB)
-CHECKFLAGS += -D__NDS32_EB__
-endif
-
-boot := arch/nds32/boot
-core-y += $(boot)/dts/
-
-Image: vmlinux
- $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
-
-
-PHONY += vdso_install
-vdso_install:
- $(Q)$(MAKE) $(build)=arch/nds32/kernel/vdso $@
-
-prepare: vdso_prepare
-vdso_prepare: prepare0
- $(Q)$(MAKE) $(build)=arch/nds32/kernel/vdso include/generated/vdso-offsets.h
-
-define archhelp
- echo ' Image - kernel image (arch/$(ARCH)/boot/Image)'
-endef
diff --git a/arch/nds32/boot/.gitignore b/arch/nds32/boot/.gitignore
deleted file mode 100644
index 9182a3a1ea0a..000000000000
--- a/arch/nds32/boot/.gitignore
+++ /dev/null
@@ -1,2 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-/Image
diff --git a/arch/nds32/boot/Makefile b/arch/nds32/boot/Makefile
deleted file mode 100644
index c4cc0c2689f7..000000000000
--- a/arch/nds32/boot/Makefile
+++ /dev/null
@@ -1,16 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-targets := Image Image.gz
-
-$(obj)/Image: vmlinux FORCE
- $(call if_changed,objcopy)
-
-$(obj)/Image.gz: $(obj)/Image FORCE
- $(call if_changed,gzip)
-
-install: $(obj)/Image
- $(CONFIG_SHELL) $(srctree)/$(src)/install.sh $(KERNELRELEASE) \
- $(obj)/Image System.map "$(INSTALL_PATH)"
-
-zinstall: $(obj)/Image.gz
- $(CONFIG_SHELL) $(srctree)/$(src)/install.sh $(KERNELRELEASE) \
- $(obj)/Image.gz System.map "$(INSTALL_PATH)"
diff --git a/arch/nds32/boot/dts/Makefile b/arch/nds32/boot/dts/Makefile
deleted file mode 100644
index 4fc69562eae8..000000000000
--- a/arch/nds32/boot/dts/Makefile
+++ /dev/null
@@ -1,2 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-obj-$(CONFIG_OF) += $(addsuffix .dtb.o, $(CONFIG_NDS32_BUILTIN_DTB))
diff --git a/arch/nds32/boot/dts/ae3xx.dts b/arch/nds32/boot/dts/ae3xx.dts
deleted file mode 100644
index 16a9f54a805e..000000000000
--- a/arch/nds32/boot/dts/ae3xx.dts
+++ /dev/null
@@ -1,90 +0,0 @@
-/dts-v1/;
-/ {
- compatible = "andestech,ae3xx";
- #address-cells = <1>;
- #size-cells = <1>;
- interrupt-parent = <&intc>;
-
- chosen {
- stdout-path = &serial0;
- };
-
- memory@0 {
- device_type = "memory";
- reg = <0x00000000 0x40000000>;
- };
-
- cpus {
- #address-cells = <1>;
- #size-cells = <0>;
- cpu@0 {
- device_type = "cpu";
- compatible = "andestech,n13", "andestech,nds32v3";
- reg = <0>;
- clock-frequency = <60000000>;
- next-level-cache = <&L2>;
- };
- };
-
- intc: interrupt-controller {
- compatible = "andestech,ativic32";
- #interrupt-cells = <1>;
- interrupt-controller;
- };
-
- clock: clk {
- #clock-cells = <0>;
- compatible = "fixed-clock";
- clock-frequency = <30000000>;
- };
-
- apb {
- compatible = "simple-bus";
- #address-cells = <1>;
- #size-cells = <1>;
- ranges;
-
- serial0: serial@...00000 {
- compatible = "andestech,uart16550", "ns16550a";
- reg = <0xf0300000 0x1000>;
- interrupts = <8>;
- clock-frequency = <14745600>;
- reg-shift = <2>;
- reg-offset = <32>;
- no-loopback-test = <1>;
- };
-
- timer0: timer@...00000 {
- compatible = "andestech,atcpit100";
- reg = <0xf0400000 0x1000>;
- interrupts = <2>;
- clocks = <&clock>;
- clock-names = "PCLK";
- };
- };
-
- ahb {
- compatible = "simple-bus";
- #address-cells = <1>;
- #size-cells = <1>;
- ranges;
-
- L2: cache-controller@...00000 {
- compatible = "andestech,atl2c";
- reg = <0xe0500000 0x1000>;
- cache-unified;
- cache-level = <2>;
- };
-
- mac0: ethernet@...00000 {
- compatible = "andestech,atmac100";
- reg = <0xe0100000 0x1000>;
- interrupts = <18>;
- };
- };
-
- pmu {
- compatible = "andestech,nds32v3-pmu";
- interrupts= <13>;
- };
-};
diff --git a/arch/nds32/configs/defconfig b/arch/nds32/configs/defconfig
deleted file mode 100644
index f9a89cf00aa6..000000000000
--- a/arch/nds32/configs/defconfig
+++ /dev/null
@@ -1,104 +0,0 @@
-CONFIG_SYSVIPC=y
-CONFIG_POSIX_MQUEUE=y
-CONFIG_HIGH_RES_TIMERS=y
-CONFIG_BSD_PROCESS_ACCT=y
-CONFIG_BSD_PROCESS_ACCT_V3=y
-CONFIG_IKCONFIG=y
-CONFIG_IKCONFIG_PROC=y
-CONFIG_LOG_BUF_SHIFT=14
-CONFIG_USER_NS=y
-CONFIG_RELAY=y
-CONFIG_BLK_DEV_INITRD=y
-CONFIG_KALLSYMS_ALL=y
-CONFIG_PROFILING=y
-CONFIG_MODULES=y
-CONFIG_MODULE_UNLOAD=y
-# CONFIG_BLK_DEV_BSG is not set
-# CONFIG_CACHE_L2 is not set
-CONFIG_PREEMPT=y
-# CONFIG_COMPACTION is not set
-CONFIG_HZ_100=y
-# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
-CONFIG_NET=y
-CONFIG_PACKET=y
-CONFIG_UNIX=y
-CONFIG_NET_KEY=y
-CONFIG_INET=y
-CONFIG_IP_MULTICAST=y
-# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
-# CONFIG_INET_XFRM_MODE_TUNNEL is not set
-# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_DIAG is not set
-# CONFIG_IPV6 is not set
-# CONFIG_BLK_DEV is not set
-CONFIG_NETDEVICES=y
-# CONFIG_NET_CADENCE is not set
-# CONFIG_NET_VENDOR_BROADCOM is not set
-CONFIG_FTMAC100=y
-# CONFIG_NET_VENDOR_INTEL is not set
-# CONFIG_NET_VENDOR_MARVELL is not set
-# CONFIG_NET_VENDOR_MICREL is not set
-# CONFIG_NET_VENDOR_NATSEMI is not set
-# CONFIG_NET_VENDOR_SEEQ is not set
-# CONFIG_NET_VENDOR_STMICRO is not set
-# CONFIG_NET_VENDOR_WIZNET is not set
-CONFIG_INPUT_EVDEV=y
-# CONFIG_INPUT_KEYBOARD is not set
-# CONFIG_INPUT_MOUSE is not set
-CONFIG_INPUT_TOUCHSCREEN=y
-# CONFIG_SERIO is not set
-CONFIG_VT_HW_CONSOLE_BINDING=y
-CONFIG_SERIAL_8250=y
-# CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set
-CONFIG_SERIAL_8250_CONSOLE=y
-CONFIG_SERIAL_8250_NR_UARTS=3
-CONFIG_SERIAL_8250_RUNTIME_UARTS=3
-CONFIG_SERIAL_OF_PLATFORM=y
-# CONFIG_HW_RANDOM is not set
-# CONFIG_HWMON is not set
-# CONFIG_HID_A4TECH is not set
-# CONFIG_HID_APPLE is not set
-# CONFIG_HID_BELKIN is not set
-# CONFIG_HID_CHERRY is not set
-# CONFIG_HID_CHICONY is not set
-# CONFIG_HID_CYPRESS is not set
-# CONFIG_HID_EZKEY is not set
-# CONFIG_HID_ITE is not set
-# CONFIG_HID_KENSINGTON is not set
-# CONFIG_HID_LOGITECH is not set
-# CONFIG_HID_MICROSOFT is not set
-# CONFIG_HID_MONTEREY is not set
-# CONFIG_USB_SUPPORT is not set
-CONFIG_GENERIC_PHY=y
-CONFIG_EXT4_FS=y
-CONFIG_EXT4_FS_POSIX_ACL=y
-CONFIG_EXT4_FS_SECURITY=y
-CONFIG_FS_ENCRYPTION=y
-CONFIG_FUSE_FS=y
-CONFIG_MSDOS_FS=y
-CONFIG_VFAT_FS=y
-CONFIG_TMPFS=y
-CONFIG_TMPFS_POSIX_ACL=y
-CONFIG_CONFIGFS_FS=y
-CONFIG_NFS_FS=y
-CONFIG_NFS_V3_ACL=y
-CONFIG_NFS_V4=y
-CONFIG_NFS_V4_1=y
-CONFIG_NFS_USE_LEGACY_DNS=y
-CONFIG_NLS_CODEPAGE_437=y
-CONFIG_NLS_ISO8859_1=y
-CONFIG_DEBUG_INFO=y
-CONFIG_DEBUG_INFO_DWARF4=y
-CONFIG_GDB_SCRIPTS=y
-CONFIG_READABLE_ASM=y
-CONFIG_HEADERS_INSTALL=y
-CONFIG_HEADERS_CHECK=y
-CONFIG_DEBUG_SECTION_MISMATCH=y
-CONFIG_MAGIC_SYSRQ=y
-CONFIG_DEBUG_KERNEL=y
-CONFIG_PANIC_ON_OOPS=y
-# CONFIG_SCHED_DEBUG is not set
-# CONFIG_DEBUG_PREEMPT is not set
-CONFIG_STACKTRACE=y
-CONFIG_RCU_CPU_STALL_TIMEOUT=300
-# CONFIG_CRYPTO_HW is not set
diff --git a/arch/nds32/include/asm/Kbuild b/arch/nds32/include/asm/Kbuild
deleted file mode 100644
index 82a4453c9c2d..000000000000
--- a/arch/nds32/include/asm/Kbuild
+++ /dev/null
@@ -1,8 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0
-generic-y += asm-offsets.h
-generic-y += cmpxchg.h
-generic-y += export.h
-generic-y += gpio.h
-generic-y += kvm_para.h
-generic-y += parport.h
-generic-y += user.h
diff --git a/arch/nds32/include/asm/assembler.h b/arch/nds32/include/asm/assembler.h
deleted file mode 100644
index 5e7c56926049..000000000000
--- a/arch/nds32/include/asm/assembler.h
+++ /dev/null
@@ -1,39 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#ifndef __NDS32_ASSEMBLER_H__
-#define __NDS32_ASSEMBLER_H__
-
-.macro gie_disable
- setgie.d
- dsb
-.endm
-
-.macro gie_enable
- setgie.e
- dsb
-.endm
-
-.macro gie_save oldpsw
- mfsr \oldpsw, $ir0
- setgie.d
- dsb
-.endm
-
-.macro gie_restore oldpsw
- andi \oldpsw, \oldpsw, #0x1
- beqz \oldpsw, 7001f
- setgie.e
- dsb
-7001:
-.endm
-
-
-#define USER(insn, reg, addr, opr) \
-9999: insn reg, addr, opr; \
- .section __ex_table,"a"; \
- .align 3; \
- .long 9999b, 9001f; \
- .previous
-
-#endif /* __NDS32_ASSEMBLER_H__ */
diff --git a/arch/nds32/include/asm/barrier.h b/arch/nds32/include/asm/barrier.h
deleted file mode 100644
index 16413172fd50..000000000000
--- a/arch/nds32/include/asm/barrier.h
+++ /dev/null
@@ -1,15 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#ifndef __NDS32_ASM_BARRIER_H
-#define __NDS32_ASM_BARRIER_H
-
-#ifndef __ASSEMBLY__
-#define mb() asm volatile("msync all":::"memory")
-#define rmb() asm volatile("msync all":::"memory")
-#define wmb() asm volatile("msync store":::"memory")
-#include <asm-generic/barrier.h>
-
-#endif /* __ASSEMBLY__ */
-
-#endif /* __NDS32_ASM_BARRIER_H */
diff --git a/arch/nds32/include/asm/bitfield.h b/arch/nds32/include/asm/bitfield.h
deleted file mode 100644
index b02a58e71f80..000000000000
--- a/arch/nds32/include/asm/bitfield.h
+++ /dev/null
@@ -1,985 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#ifndef __NDS32_BITFIELD_H__
-#define __NDS32_BITFIELD_H__
-/******************************************************************************
- * cr0: CPU_VER (CPU Version Register)
- *****************************************************************************/
-#define CPU_VER_offCFGID 0 /* Minor configuration */
-#define CPU_VER_offREV 16 /* Revision of the CPU version */
-#define CPU_VER_offCPUID 24 /* Major CPU versions */
-
-#define CPU_VER_mskCFGID ( 0xFFFF << CPU_VER_offCFGID )
-#define CPU_VER_mskREV ( 0xFF << CPU_VER_offREV )
-#define CPU_VER_mskCPUID ( 0xFF << CPU_VER_offCPUID )
-
-/******************************************************************************
- * cr1: ICM_CFG (Instruction Cache/Memory Configuration Register)
- *****************************************************************************/
-#define ICM_CFG_offISET 0 /* I-cache sets (# of cache lines) per way */
-#define ICM_CFG_offIWAY 3 /* I-cache ways */
-#define ICM_CFG_offISZ 6 /* I-cache line size */
-#define ICM_CFG_offILCK 9 /* I-cache locking support */
-#define ICM_CFG_offILMB 10 /* On-chip ILM banks */
-#define ICM_CFG_offBSAV 13 /* ILM base register alignment version */
-/* bit 15:31 reserved */
-
-#define ICM_CFG_mskISET ( 0x7 << ICM_CFG_offISET )
-#define ICM_CFG_mskIWAY ( 0x7 << ICM_CFG_offIWAY )
-#define ICM_CFG_mskISZ ( 0x7 << ICM_CFG_offISZ )
-#define ICM_CFG_mskILCK ( 0x1 << ICM_CFG_offILCK )
-#define ICM_CFG_mskILMB ( 0x7 << ICM_CFG_offILMB )
-#define ICM_CFG_mskBSAV ( 0x3 << ICM_CFG_offBSAV )
-
-/******************************************************************************
- * cr2: DCM_CFG (Data Cache/Memory Configuration Register)
- *****************************************************************************/
-#define DCM_CFG_offDSET 0 /* D-cache sets (# of cache lines) per way */
-#define DCM_CFG_offDWAY 3 /* D-cache ways */
-#define DCM_CFG_offDSZ 6 /* D-cache line size */
-#define DCM_CFG_offDLCK 9 /* D-cache locking support */
-#define DCM_CFG_offDLMB 10 /* On-chip DLM banks */
-#define DCM_CFG_offBSAV 13 /* DLM base register alignment version */
-/* bit 15:31 reserved */
-
-#define DCM_CFG_mskDSET ( 0x7 << DCM_CFG_offDSET )
-#define DCM_CFG_mskDWAY ( 0x7 << DCM_CFG_offDWAY )
-#define DCM_CFG_mskDSZ ( 0x7 << DCM_CFG_offDSZ )
-#define DCM_CFG_mskDLCK ( 0x1 << DCM_CFG_offDLCK )
-#define DCM_CFG_mskDLMB ( 0x7 << DCM_CFG_offDLMB )
-#define DCM_CFG_mskBSAV ( 0x3 << DCM_CFG_offBSAV )
-
-/******************************************************************************
- * cr3: MMU_CFG (MMU Configuration Register)
- *****************************************************************************/
-#define MMU_CFG_offMMPS 0 /* Memory management protection scheme */
-#define MMU_CFG_offMMPV 2 /* Memory management protection version number */
-#define MMU_CFG_offFATB 7 /* Fully-associative or non-fully-associative TLB */
-
-#define MMU_CFG_offTBW 8 /* TLB ways(non-associative) TBS */
-#define MMU_CFG_offTBS 11 /* TLB sets per way(non-associative) TBS */
-/* bit 14:14 reserved */
-
-#define MMU_CFG_offEP8MIN4 15 /* 8KB page supported while minimum page is 4KB */
-#define MMU_CFG_offfEPSZ 16 /* Extra page size supported */
-#define MMU_CFG_offTLBLCK 24 /* TLB locking support */
-#define MMU_CFG_offHPTWK 25 /* Hardware Page Table Walker implemented */
-#define MMU_CFG_offDE 26 /* Default endian */
-#define MMU_CFG_offNTPT 27 /* Partitions for non-translated attributes */
-#define MMU_CFG_offIVTB 28 /* Invisible TLB */
-#define MMU_CFG_offVLPT 29 /* VLPT for fast TLB fill handling implemented */
-#define MMU_CFG_offNTME 30 /* Non-translated VA to PA mapping */
-/* bit 31 reserved */
-
-#define MMU_CFG_mskMMPS ( 0x3 << MMU_CFG_offMMPS )
-#define MMU_CFG_mskMMPV ( 0x1F << MMU_CFG_offMMPV )
-#define MMU_CFG_mskFATB ( 0x1 << MMU_CFG_offFATB )
-#define MMU_CFG_mskTBW ( 0x7 << MMU_CFG_offTBW )
-#define MMU_CFG_mskTBS ( 0x7 << MMU_CFG_offTBS )
-#define MMU_CFG_mskEP8MIN4 ( 0x1 << MMU_CFG_offEP8MIN4 )
-#define MMU_CFG_mskfEPSZ ( 0xFF << MMU_CFG_offfEPSZ )
-#define MMU_CFG_mskTLBLCK ( 0x1 << MMU_CFG_offTLBLCK )
-#define MMU_CFG_mskHPTWK ( 0x1 << MMU_CFG_offHPTWK )
-#define MMU_CFG_mskDE ( 0x1 << MMU_CFG_offDE )
-#define MMU_CFG_mskNTPT ( 0x1 << MMU_CFG_offNTPT )
-#define MMU_CFG_mskIVTB ( 0x1 << MMU_CFG_offIVTB )
-#define MMU_CFG_mskVLPT ( 0x1 << MMU_CFG_offVLPT )
-#define MMU_CFG_mskNTME ( 0x1 << MMU_CFG_offNTME )
-
-/******************************************************************************
- * cr4: MSC_CFG (Misc Configuration Register)
- *****************************************************************************/
-#define MSC_CFG_offEDM 0
-#define MSC_CFG_offLMDMA 1
-#define MSC_CFG_offPFM 2
-#define MSC_CFG_offHSMP 3
-#define MSC_CFG_offTRACE 4
-#define MSC_CFG_offDIV 5
-#define MSC_CFG_offMAC 6
-#define MSC_CFG_offAUDIO 7
-#define MSC_CFG_offL2C 9
-#define MSC_CFG_offRDREG 10
-#define MSC_CFG_offADR24 11
-#define MSC_CFG_offINTLC 12
-#define MSC_CFG_offBASEV 13
-#define MSC_CFG_offNOD 16
-/* bit 13:31 reserved */
-
-#define MSC_CFG_mskEDM ( 0x1 << MSC_CFG_offEDM )
-#define MSC_CFG_mskLMDMA ( 0x1 << MSC_CFG_offLMDMA )
-#define MSC_CFG_mskPFM ( 0x1 << MSC_CFG_offPFM )
-#define MSC_CFG_mskHSMP ( 0x1 << MSC_CFG_offHSMP )
-#define MSC_CFG_mskTRACE ( 0x1 << MSC_CFG_offTRACE )
-#define MSC_CFG_mskDIV ( 0x1 << MSC_CFG_offDIV )
-#define MSC_CFG_mskMAC ( 0x1 << MSC_CFG_offMAC )
-#define MSC_CFG_mskAUDIO ( 0x3 << MSC_CFG_offAUDIO )
-#define MSC_CFG_mskL2C ( 0x1 << MSC_CFG_offL2C )
-#define MSC_CFG_mskRDREG ( 0x1 << MSC_CFG_offRDREG )
-#define MSC_CFG_mskADR24 ( 0x1 << MSC_CFG_offADR24 )
-#define MSC_CFG_mskINTLC ( 0x1 << MSC_CFG_offINTLC )
-#define MSC_CFG_mskBASEV ( 0x7 << MSC_CFG_offBASEV )
-#define MSC_CFG_mskNOD ( 0x1 << MSC_CFG_offNOD )
-
-/******************************************************************************
- * cr5: CORE_CFG (Core Identification Register)
- *****************************************************************************/
-#define CORE_ID_offCOREID 0
-/* bit 4:31 reserved */
-
-#define CORE_ID_mskCOREID ( 0xF << CORE_ID_offCOREID )
-
-/******************************************************************************
- * cr6: FUCOP_EXIST (FPU and Coprocessor Existence Configuration Register)
- *****************************************************************************/
-#define FUCOP_EXIST_offCP0EX 0
-#define FUCOP_EXIST_offCP1EX 1
-#define FUCOP_EXIST_offCP2EX 2
-#define FUCOP_EXIST_offCP3EX 3
-#define FUCOP_EXIST_offCP0ISFPU 31
-
-#define FUCOP_EXIST_mskCP0EX ( 0x1 << FUCOP_EXIST_offCP0EX )
-#define FUCOP_EXIST_mskCP1EX ( 0x1 << FUCOP_EXIST_offCP1EX )
-#define FUCOP_EXIST_mskCP2EX ( 0x1 << FUCOP_EXIST_offCP2EX )
-#define FUCOP_EXIST_mskCP3EX ( 0x1 << FUCOP_EXIST_offCP3EX )
-#define FUCOP_EXIST_mskCP0ISFPU ( 0x1 << FUCOP_EXIST_offCP0ISFPU )
-
-/******************************************************************************
- * ir0: PSW (Processor Status Word Register)
- * ir1: IPSW (Interruption PSW Register)
- * ir2: P_IPSW (Previous IPSW Register)
- *****************************************************************************/
-#define PSW_offGIE 0 /* Global Interrupt Enable */
-#define PSW_offINTL 1 /* Interruption Stack Level */
-#define PSW_offPOM 3 /* Processor Operation Mode, User/Superuser */
-#define PSW_offBE 5 /* Endianness for data memory access, 1:MSB, 0:LSB */
-#define PSW_offIT 6 /* Enable instruction address translation */
-#define PSW_offDT 7 /* Enable data address translation */
-#define PSW_offIME 8 /* Instruction Machine Error flag */
-#define PSW_offDME 9 /* Data Machine Error flag */
-#define PSW_offDEX 10 /* Debug Exception */
-#define PSW_offHSS 11 /* Hardware Single Stepping */
-#define PSW_offDRBE 12 /* Device Register Endian Mode */
-#define PSW_offAEN 13 /* Audio ISA special feature */
-#define PSW_offWBNA 14 /* Write Back Non-Allocate */
-#define PSW_offIFCON 15 /* IFC On */
-#define PSW_offCPL 16 /* Current Priority Level */
-/* bit 19:31 reserved */
-
-#define PSW_mskGIE ( 0x1 << PSW_offGIE )
-#define PSW_mskINTL ( 0x3 << PSW_offINTL )
-#define PSW_mskPOM ( 0x3 << PSW_offPOM )
-#define PSW_mskBE ( 0x1 << PSW_offBE )
-#define PSW_mskIT ( 0x1 << PSW_offIT )
-#define PSW_mskDT ( 0x1 << PSW_offDT )
-#define PSW_mskIME ( 0x1 << PSW_offIME )
-#define PSW_mskDME ( 0x1 << PSW_offDME )
-#define PSW_mskDEX ( 0x1 << PSW_offDEX )
-#define PSW_mskHSS ( 0x1 << PSW_offHSS )
-#define PSW_mskDRBE ( 0x1 << PSW_offDRBE )
-#define PSW_mskAEN ( 0x1 << PSW_offAEN )
-#define PSW_mskWBNA ( 0x1 << PSW_offWBNA )
-#define PSW_mskIFCON ( 0x1 << PSW_offIFCON )
-#define PSW_mskCPL ( 0x7 << PSW_offCPL )
-
-#define PSW_SYSTEM ( 1 << PSW_offPOM )
-#define PSW_INTL_1 ( 1 << PSW_offINTL )
-#define PSW_CPL_NO ( 0 << PSW_offCPL )
-#define PSW_CPL_ANY ( 7 << PSW_offCPL )
-
-#define PSW_clr (PSW_mskGIE|PSW_mskINTL|PSW_mskPOM|PSW_mskIT|PSW_mskDT|PSW_mskIME|PSW_mskWBNA)
-#ifdef __NDS32_EB__
-#ifdef CONFIG_WBNA
-#define PSW_init (PSW_mskWBNA|(1<<PSW_offINTL)|(1<<PSW_offPOM)|PSW_mskIT|PSW_mskDT|PSW_mskBE)
-#else
-#define PSW_init ((1<<PSW_offINTL)|(1<<PSW_offPOM)|PSW_mskIT|PSW_mskDT|PSW_mskBE)
-#endif
-#else
-#ifdef CONFIG_WBNA
-#define PSW_init (PSW_mskWBNA|(1<<PSW_offINTL)|(1<<PSW_offPOM)|PSW_mskIT|PSW_mskDT)
-#else
-#define PSW_init ((1<<PSW_offINTL)|(1<<PSW_offPOM)|PSW_mskIT|PSW_mskDT)
-#endif
-#endif
-/******************************************************************************
- * ir3: IVB (Interruption Vector Base Register)
- *****************************************************************************/
-/* bit 0:12 reserved */
-#define IVB_offNIVIC 1 /* Number of input for IVIC Controller */
-#define IVB_offIVIC_VER 11 /* IVIC Version */
-#define IVB_offEVIC 13 /* External Vector Interrupt Controller mode */
-#define IVB_offESZ 14 /* Size of each vector entry */
-#define IVB_offIVBASE 16 /* BasePA of interrupt vector table */
-
-#define IVB_mskNIVIC ( 0x7 << IVB_offNIVIC )
-#define IVB_mskIVIC_VER ( 0x3 << IVB_offIVIC_VER )
-#define IVB_mskEVIC ( 0x1 << IVB_offEVIC )
-#define IVB_mskESZ ( 0x3 << IVB_offESZ )
-#define IVB_mskIVBASE ( 0xFFFF << IVB_offIVBASE )
-
-#define IVB_valESZ4 0
-#define IVB_valESZ16 1
-#define IVB_valESZ64 2
-#define IVB_valESZ256 3
-/******************************************************************************
- * ir4: EVA (Exception Virtual Address Register)
- * ir5: P_EVA (Previous EVA Register)
- *****************************************************************************/
-
- /* This register contains the VA that causes the exception */
-
-/******************************************************************************
- * ir6: ITYPE (Interruption Type Register)
- * ir7: P_ITYPE (Previous ITYPE Register)
- *****************************************************************************/
-#define ITYPE_offETYPE 0 /* Exception Type */
-#define ITYPE_offINST 4 /* Exception caused by insn fetch or data access */
-/* bit 5:15 reserved */
-#define ITYPE_offVECTOR 5 /* Vector */
-#define ITYPE_offSWID 16 /* SWID of debugging exception */
-/* bit 31:31 reserved */
-
-#define ITYPE_mskETYPE ( 0xF << ITYPE_offETYPE )
-#define ITYPE_mskINST ( 0x1 << ITYPE_offINST )
-#define ITYPE_mskVECTOR ( 0x7F << ITYPE_offVECTOR )
-#define ITYPE_mskSWID ( 0x7FFF << ITYPE_offSWID )
-
-/* Additional definitions for ITYPE register */
-#define ITYPE_offSTYPE 16 /* Arithmetic Sub Type */
-#define ITYPE_offCPID 20 /* Co-Processor ID which generate the exception */
-
-#define ITYPE_mskSTYPE ( 0xF << ITYPE_offSTYPE )
-#define ITYPE_mskCPID ( 0x3 << ITYPE_offCPID )
-
-/* Additional definitions of ITYPE register for FPU */
-#define FPU_DISABLE_EXCEPTION (0x1 << ITYPE_offSTYPE)
-#define FPU_EXCEPTION (0x2 << ITYPE_offSTYPE)
-#define FPU_CPID 0 /* FPU Co-Processor ID is 0 */
-
-#define NDS32_VECTOR_mskNONEXCEPTION 0x78
-#define NDS32_VECTOR_offEXCEPTION 8
-#define NDS32_VECTOR_offINTERRUPT 9
-
-/* Interrupt vector entry */
-#define ENTRY_RESET_NMI 0
-#define ENTRY_TLB_FILL 1
-#define ENTRY_PTE_NOT_PRESENT 2
-#define ENTRY_TLB_MISC 3
-#define ENTRY_TLB_VLPT_MISS 4
-#define ENTRY_MACHINE_ERROR 5
-#define ENTRY_DEBUG_RELATED 6
-#define ENTRY_GENERAL_EXCPETION 7
-#define ENTRY_SYSCALL 8
-
-/* PTE not present exception definition */
-#define ETYPE_NON_LEAF_PTE_NOT_PRESENT 0
-#define ETYPE_LEAF_PTE_NOT_PRESENT 1
-
-/* General exception ETYPE definition */
-#define ETYPE_ALIGNMENT_CHECK 0
-#define ETYPE_RESERVED_INSTRUCTION 1
-#define ETYPE_TRAP 2
-#define ETYPE_ARITHMETIC 3
-#define ETYPE_PRECISE_BUS_ERROR 4
-#define ETYPE_IMPRECISE_BUS_ERROR 5
-#define ETYPE_COPROCESSOR 6
-#define ETYPE_RESERVED_VALUE 7
-#define ETYPE_NONEXISTENT_MEM_ADDRESS 8
-#define ETYPE_MPZIU_CONTROL 9
-#define ETYPE_NEXT_PRECISE_STACK_OFL 10
-
-/* Kerenl reserves software ID */
-#define SWID_RAISE_INTERRUPT_LEVEL 0x1a /* SWID_RAISE_INTERRUPT_LEVEL is used to
- * raise interrupt level for debug exception
- */
-
-/******************************************************************************
- * ir8: MERR (Machine Error Log Register)
- *****************************************************************************/
-/* bit 0:30 reserved */
-#define MERR_offBUSERR 31 /* Bus error caused by a load insn */
-
-#define MERR_mskBUSERR ( 0x1 << MERR_offBUSERR )
-
-/******************************************************************************
- * ir9: IPC (Interruption Program Counter Register)
- * ir10: P_IPC (Previous IPC Register)
- * ir11: OIPC (Overflow Interruption Program Counter Register)
- *****************************************************************************/
-
- /* This is the shadow stack register of the Program Counter */
-
-/******************************************************************************
- * ir12: P_P0 (Previous P0 Register)
- * ir13: P_P1 (Previous P1 Register)
- *****************************************************************************/
-
- /* These are shadow registers of $p0 and $p1 */
-
-/******************************************************************************
- * ir14: INT_MASK (Interruption Masking Register)
- *****************************************************************************/
-#define INT_MASK_offH0IM 0 /* Hardware Interrupt 0 Mask bit */
-#define INT_MASK_offH1IM 1 /* Hardware Interrupt 1 Mask bit */
-#define INT_MASK_offH2IM 2 /* Hardware Interrupt 2 Mask bit */
-#define INT_MASK_offH3IM 3 /* Hardware Interrupt 3 Mask bit */
-#define INT_MASK_offH4IM 4 /* Hardware Interrupt 4 Mask bit */
-#define INT_MASK_offH5IM 5 /* Hardware Interrupt 5 Mask bit */
-/* bit 6:15 reserved */
-#define INT_MASK_offSIM 16 /* Software Interrupt Mask bit */
-/* bit 17:29 reserved */
-#define INT_MASK_offIDIVZE 30 /* Enable detection for Divide-By-Zero */
-#define INT_MASK_offDSSIM 31 /* Default Single Stepping Interruption Mask */
-
-#define INT_MASK_mskH0IM ( 0x1 << INT_MASK_offH0IM )
-#define INT_MASK_mskH1IM ( 0x1 << INT_MASK_offH1IM )
-#define INT_MASK_mskH2IM ( 0x1 << INT_MASK_offH2IM )
-#define INT_MASK_mskH3IM ( 0x1 << INT_MASK_offH3IM )
-#define INT_MASK_mskH4IM ( 0x1 << INT_MASK_offH4IM )
-#define INT_MASK_mskH5IM ( 0x1 << INT_MASK_offH5IM )
-#define INT_MASK_mskSIM ( 0x1 << INT_MASK_offSIM )
-#define INT_MASK_mskIDIVZE ( 0x1 << INT_MASK_offIDIVZE )
-#define INT_MASK_mskDSSIM ( 0x1 << INT_MASK_offDSSIM )
-
-#define INT_MASK_INITAIAL_VAL (INT_MASK_mskDSSIM|INT_MASK_mskIDIVZE)
-
-/******************************************************************************
- * ir15: INT_PEND (Interrupt Pending Register)
- *****************************************************************************/
-#define INT_PEND_offH0I 0 /* Hardware Interrupt 0 pending bit */
-#define INT_PEND_offH1I 1 /* Hardware Interrupt 1 pending bit */
-#define INT_PEND_offH2I 2 /* Hardware Interrupt 2 pending bit */
-#define INT_PEND_offH3I 3 /* Hardware Interrupt 3 pending bit */
-#define INT_PEND_offH4I 4 /* Hardware Interrupt 4 pending bit */
-#define INT_PEND_offH5I 5 /* Hardware Interrupt 5 pending bit */
-
-#define INT_PEND_offCIPL 0 /* Current Interrupt Priority Level */
-
-/* bit 6:15 reserved */
-#define INT_PEND_offSWI 16 /* Software Interrupt pending bit */
-/* bit 17:31 reserved */
-
-#define INT_PEND_mskH0I ( 0x1 << INT_PEND_offH0I )
-#define INT_PEND_mskH1I ( 0x1 << INT_PEND_offH1I )
-#define INT_PEND_mskH2I ( 0x1 << INT_PEND_offH2I )
-#define INT_PEND_mskH3I ( 0x1 << INT_PEND_offH3I )
-#define INT_PEND_mskH4I ( 0x1 << INT_PEND_offH4I )
-#define INT_PEND_mskH5I ( 0x1 << INT_PEND_offH5I )
-#define INT_PEND_mskCIPL ( 0x1 << INT_PEND_offCIPL )
-#define INT_PEND_mskSWI ( 0x1 << INT_PEND_offSWI )
-
-/******************************************************************************
- * mr0: MMU_CTL (MMU Control Register)
- *****************************************************************************/
-#define MMU_CTL_offD 0 /* Default minimum page size */
-#define MMU_CTL_offNTC0 1 /* Non-Translated Cachebility of partition 0 */
-#define MMU_CTL_offNTC1 3 /* Non-Translated Cachebility of partition 1 */
-#define MMU_CTL_offNTC2 5 /* Non-Translated Cachebility of partition 2 */
-#define MMU_CTL_offNTC3 7 /* Non-Translated Cachebility of partition 3 */
-#define MMU_CTL_offTBALCK 9 /* TLB all-lock resolution scheme */
-#define MMU_CTL_offMPZIU 10 /* Multiple Page Size In Use bit */
-#define MMU_CTL_offNTM0 11 /* Non-Translated VA to PA of partition 0 */
-#define MMU_CTL_offNTM1 13 /* Non-Translated VA to PA of partition 1 */
-#define MMU_CTL_offNTM2 15 /* Non-Translated VA to PA of partition 2 */
-#define MMU_CTL_offNTM3 17 /* Non-Translated VA to PA of partition 3 */
-#define MMU_CTL_offUNA 23 /* Unaligned access */
-/* bit 24:31 reserved */
-
-#define MMU_CTL_mskD ( 0x1 << MMU_CTL_offD )
-#define MMU_CTL_mskNTC0 ( 0x3 << MMU_CTL_offNTC0 )
-#define MMU_CTL_mskNTC1 ( 0x3 << MMU_CTL_offNTC1 )
-#define MMU_CTL_mskNTC2 ( 0x3 << MMU_CTL_offNTC2 )
-#define MMU_CTL_mskNTC3 ( 0x3 << MMU_CTL_offNTC3 )
-#define MMU_CTL_mskTBALCK ( 0x1 << MMU_CTL_offTBALCK )
-#define MMU_CTL_mskMPZIU ( 0x1 << MMU_CTL_offMPZIU )
-#define MMU_CTL_mskNTM0 ( 0x3 << MMU_CTL_offNTM0 )
-#define MMU_CTL_mskNTM1 ( 0x3 << MMU_CTL_offNTM1 )
-#define MMU_CTL_mskNTM2 ( 0x3 << MMU_CTL_offNTM2 )
-#define MMU_CTL_mskNTM3 ( 0x3 << MMU_CTL_offNTM3 )
-
-#define MMU_CTL_D4KB 0
-#define MMU_CTL_D8KB 1
-#define MMU_CTL_UNA ( 0x1 << MMU_CTL_offUNA )
-
-#define MMU_CTL_CACHEABLE_NON 0
-#define MMU_CTL_CACHEABLE_WB 2
-#define MMU_CTL_CACHEABLE_WT 3
-
-/******************************************************************************
- * mr1: L1_PPTB (L1 Physical Page Table Base Register)
- *****************************************************************************/
-#define L1_PPTB_offNV 0 /* Enable Hardware Page Table Walker (HPTWK) */
-/* bit 1:11 reserved */
-#define L1_PPTB_offBASE 12 /* First level physical page table base address */
-
-#define L1_PPTB_mskNV ( 0x1 << L1_PPTB_offNV )
-#define L1_PPTB_mskBASE ( 0xFFFFF << L1_PPTB_offBASE )
-
-/******************************************************************************
- * mr2: TLB_VPN (TLB Access VPN Register)
- *****************************************************************************/
-/* bit 0:11 reserved */
-#define TLB_VPN_offVPN 12 /* Virtual Page Number */
-
-#define TLB_VPN_mskVPN ( 0xFFFFF << TLB_VPN_offVPN )
-
-/******************************************************************************
- * mr3: TLB_DATA (TLB Access Data Register)
- *****************************************************************************/
-#define TLB_DATA_offV 0 /* PTE is valid and present */
-#define TLB_DATA_offM 1 /* Page read/write access privilege */
-#define TLB_DATA_offD 4 /* Dirty bit */
-#define TLB_DATA_offX 5 /* Executable bit */
-#define TLB_DATA_offA 6 /* Access bit */
-#define TLB_DATA_offG 7 /* Global page (shared across contexts) */
-#define TLB_DATA_offC 8 /* Cacheability atribute */
-/* bit 11:11 reserved */
-#define TLB_DATA_offPPN 12 /* Phisical Page Number */
-
-#define TLB_DATA_mskV ( 0x1 << TLB_DATA_offV )
-#define TLB_DATA_mskM ( 0x7 << TLB_DATA_offM )
-#define TLB_DATA_mskD ( 0x1 << TLB_DATA_offD )
-#define TLB_DATA_mskX ( 0x1 << TLB_DATA_offX )
-#define TLB_DATA_mskA ( 0x1 << TLB_DATA_offA )
-#define TLB_DATA_mskG ( 0x1 << TLB_DATA_offG )
-#define TLB_DATA_mskC ( 0x7 << TLB_DATA_offC )
-#define TLB_DATA_mskPPN ( 0xFFFFF << TLB_DATA_offPPN )
-
-#ifdef CONFIG_CPU_DCACHE_WRITETHROUGH
-#define TLB_DATA_kernel_text_attr (TLB_DATA_mskV|TLB_DATA_mskM|TLB_DATA_mskD|TLB_DATA_mskX|TLB_DATA_mskG|TLB_DATA_mskC)
-#else
-#define TLB_DATA_kernel_text_attr (TLB_DATA_mskV|TLB_DATA_mskM|TLB_DATA_mskD|TLB_DATA_mskX|TLB_DATA_mskG|(0x6 << TLB_DATA_offC))
-#endif
-
-/******************************************************************************
- * mr4: TLB_MISC (TLB Access Misc Register)
- *****************************************************************************/
-#define TLB_MISC_offACC_PSZ 0 /* Page size of a PTE entry */
-#define TLB_MISC_offCID 4 /* Context id */
-/* bit 13:31 reserved */
-
-#define TLB_MISC_mskACC_PSZ ( 0xF << TLB_MISC_offACC_PSZ )
-#define TLB_MISC_mskCID ( 0x1FF << TLB_MISC_offCID )
-
-/******************************************************************************
- * mr5: VLPT_IDX (Virtual Linear Page Table Index Register)
- *****************************************************************************/
-#define VLPT_IDX_offZERO 0 /* Always 0 */
-#define VLPT_IDX_offEVPN 2 /* Exception Virtual Page Number */
-#define VLPT_IDX_offVLPTB 22 /* Base VA of VLPT */
-
-#define VLPT_IDX_mskZERO ( 0x3 << VLPT_IDX_offZERO )
-#define VLPT_IDX_mskEVPN ( 0xFFFFF << VLPT_IDX_offEVPN )
-#define VLPT_IDX_mskVLPTB ( 0x3FF << VLPT_IDX_offVLPTB )
-
-/******************************************************************************
- * mr6: ILMB (Instruction Local Memory Base Register)
- *****************************************************************************/
-#define ILMB_offIEN 0 /* Enable ILM */
-#define ILMB_offILMSZ 1 /* Size of ILM */
-/* bit 5:19 reserved */
-#define ILMB_offIBPA 20 /* Base PA of ILM */
-
-#define ILMB_mskIEN ( 0x1 << ILMB_offIEN )
-#define ILMB_mskILMSZ ( 0xF << ILMB_offILMSZ )
-#define ILMB_mskIBPA ( 0xFFF << ILMB_offIBPA )
-
-/******************************************************************************
- * mr7: DLMB (Data Local Memory Base Register)
- *****************************************************************************/
-#define DLMB_offDEN 0 /* Enable DLM */
-#define DLMB_offDLMSZ 1 /* Size of DLM */
-#define DLMB_offDBM 5 /* Enable Double-Buffer Mode for DLM */
-#define DLMB_offDBB 6 /* Double-buffer bank which can be accessed by the processor */
-/* bit 7:19 reserved */
-#define DLMB_offDBPA 20 /* Base PA of DLM */
-
-#define DLMB_mskDEN ( 0x1 << DLMB_offDEN )
-#define DLMB_mskDLMSZ ( 0xF << DLMB_offDLMSZ )
-#define DLMB_mskDBM ( 0x1 << DLMB_offDBM )
-#define DLMB_mskDBB ( 0x1 << DLMB_offDBB )
-#define DLMB_mskDBPA ( 0xFFF << DLMB_offDBPA )
-
-/******************************************************************************
- * mr8: CACHE_CTL (Cache Control Register)
- *****************************************************************************/
-#define CACHE_CTL_offIC_EN 0 /* Enable I-cache */
-#define CACHE_CTL_offDC_EN 1 /* Enable D-cache */
-#define CACHE_CTL_offICALCK 2 /* I-cache all-lock resolution scheme */
-#define CACHE_CTL_offDCALCK 3 /* D-cache all-lock resolution scheme */
-#define CACHE_CTL_offDCCWF 4 /* Enable D-cache Critical Word Forwarding */
-#define CACHE_CTL_offDCPMW 5 /* Enable D-cache concurrent miss and write-back processing */
-/* bit 6:31 reserved */
-
-#define CACHE_CTL_mskIC_EN ( 0x1 << CACHE_CTL_offIC_EN )
-#define CACHE_CTL_mskDC_EN ( 0x1 << CACHE_CTL_offDC_EN )
-#define CACHE_CTL_mskICALCK ( 0x1 << CACHE_CTL_offICALCK )
-#define CACHE_CTL_mskDCALCK ( 0x1 << CACHE_CTL_offDCALCK )
-#define CACHE_CTL_mskDCCWF ( 0x1 << CACHE_CTL_offDCCWF )
-#define CACHE_CTL_mskDCPMW ( 0x1 << CACHE_CTL_offDCPMW )
-
-/******************************************************************************
- * mr9: HSMP_SADDR (High Speed Memory Port Starting Address)
- *****************************************************************************/
-#define HSMP_SADDR_offEN 0 /* Enable control bit for the High Speed Memory port */
-/* bit 1:19 reserved */
-
-#define HSMP_SADDR_offRANGE 1 /* Denote the address range (only defined in HSMP v2 ) */
-#define HSMP_SADDR_offSADDR 20 /* Starting base PA of the High Speed Memory Port region */
-
-#define HSMP_SADDR_mskEN ( 0x1 << HSMP_SADDR_offEN )
-#define HSMP_SADDR_mskRANGE ( 0xFFF << HSMP_SADDR_offRANGE )
-#define HSMP_SADDR_mskSADDR ( 0xFFF << HSMP_SADDR_offSADDR )
-
-/******************************************************************************
- * mr10: HSMP_EADDR (High Speed Memory Port Ending Address)
- *****************************************************************************/
-/* bit 0:19 reserved */
-#define HSMP_EADDR_offEADDR 20
-
-#define HSMP_EADDR_mskEADDR ( 0xFFF << HSMP_EADDR_offEADDR )
-
-/******************************************************************************
- * dr0+(n*5): BPCn (n=0-7) (Breakpoint Control Register)
- *****************************************************************************/
-#define BPC_offWP 0 /* Configuration of BPAn */
-#define BPC_offEL 1 /* Enable BPAn */
-#define BPC_offS 2 /* Data address comparison for a store instruction */
-#define BPC_offP 3 /* Compared data address is PA */
-#define BPC_offC 4 /* CID value is compared with the BPCIDn register */
-#define BPC_offBE0 5 /* Enable byte mask for the comparison with register */
-#define BPC_offBE1 6 /* Enable byte mask for the comparison with register */
-#define BPC_offBE2 7 /* Enable byte mask for the comparison with register */
-#define BPC_offBE3 8 /* Enable byte mask for the comparison with register */
-#define BPC_offT 9 /* Enable breakpoint Embedded Tracer triggering operation */
-
-#define BPC_mskWP ( 0x1 << BPC_offWP )
-#define BPC_mskEL ( 0x1 << BPC_offEL )
-#define BPC_mskS ( 0x1 << BPC_offS )
-#define BPC_mskP ( 0x1 << BPC_offP )
-#define BPC_mskC ( 0x1 << BPC_offC )
-#define BPC_mskBE0 ( 0x1 << BPC_offBE0 )
-#define BPC_mskBE1 ( 0x1 << BPC_offBE1 )
-#define BPC_mskBE2 ( 0x1 << BPC_offBE2 )
-#define BPC_mskBE3 ( 0x1 << BPC_offBE3 )
-#define BPC_mskT ( 0x1 << BPC_offT )
-
-/******************************************************************************
- * dr1+(n*5): BPAn (n=0-7) (Breakpoint Address Register)
- *****************************************************************************/
-
- /* These registers contain break point address */
-
-/******************************************************************************
- * dr2+(n*5): BPAMn (n=0-7) (Breakpoint Address Mask Register)
- *****************************************************************************/
-
- /* These registerd contain the address comparison mask for the BPAn register */
-
-/******************************************************************************
- * dr3+(n*5): BPVn (n=0-7) Breakpoint Data Value Register
- *****************************************************************************/
-
- /* The BPVn register contains the data value that will be compared with the
- * incoming load/store data value */
-
-/******************************************************************************
- * dr4+(n*5): BPCIDn (n=0-7) (Breakpoint Context ID Register)
- *****************************************************************************/
-#define BPCID_offCID 0 /* CID that will be compared with a process's CID */
-/* bit 9:31 reserved */
-
-#define BPCID_mskCID ( 0x1FF << BPCID_offCID )
-
-/******************************************************************************
- * dr40: EDM_CFG (EDM Configuration Register)
- *****************************************************************************/
-#define EDM_CFG_offBC 0 /* Number of hardware breakpoint sets implemented */
-#define EDM_CFG_offDIMU 3 /* Debug Instruction Memory Unit exists */
-/* bit 4:15 reserved */
-#define EDM_CFG_offVER 16 /* EDM version */
-
-#define EDM_CFG_mskBC ( 0x7 << EDM_CFG_offBC )
-#define EDM_CFG_mskDIMU ( 0x1 << EDM_CFG_offDIMU )
-#define EDM_CFG_mskVER ( 0xFFFF << EDM_CFG_offVER )
-
-/******************************************************************************
- * dr41: EDMSW (EDM Status Word)
- *****************************************************************************/
-#define EDMSW_offWV 0 /* Write Valid */
-#define EDMSW_offRV 1 /* Read Valid */
-#define EDMSW_offDE 2 /* Debug exception has occurred for this core */
-/* bit 3:31 reserved */
-
-#define EDMSW_mskWV ( 0x1 << EDMSW_offWV )
-#define EDMSW_mskRV ( 0x1 << EDMSW_offRV )
-#define EDMSW_mskDE ( 0x1 << EDMSW_offDE )
-
-/******************************************************************************
- * dr42: EDM_CTL (EDM Control Register)
- *****************************************************************************/
-/* bit 0:30 reserved */
-#define EDM_CTL_offV3_EDM_MODE 6 /* EDM compatibility control bit */
-#define EDM_CTL_offDEH_SEL 31 /* Controls where debug exception is directed to */
-
-#define EDM_CTL_mskV3_EDM_MODE ( 0x1 << EDM_CTL_offV3_EDM_MODE )
-#define EDM_CTL_mskDEH_SEL ( 0x1 << EDM_CTL_offDEH_SEL )
-
-/******************************************************************************
- * dr43: EDM_DTR (EDM Data Transfer Register)
- *****************************************************************************/
-
- /* This is used to exchange data between the embedded EDM logic
- * and the processor core */
-
-/******************************************************************************
- * dr44: BPMTC (Breakpoint Match Trigger Counter Register)
- *****************************************************************************/
-#define BPMTC_offBPMTC 0 /* Breakpoint match trigger counter value */
-/* bit 16:31 reserved */
-
-#define BPMTC_mskBPMTC ( 0xFFFF << BPMTC_offBPMTC )
-
-/******************************************************************************
- * dr45: DIMBR (Debug Instruction Memory Base Register)
- *****************************************************************************/
-/* bit 0:11 reserved */
-#define DIMBR_offDIMB 12 /* Base address of the Debug Instruction Memory (DIM) */
-#define DIMBR_mskDIMB ( 0xFFFFF << DIMBR_offDIMB )
-
-/******************************************************************************
- * dr46: TECR0(Trigger Event Control register 0)
- * dr47: TECR1 (Trigger Event Control register 1)
- *****************************************************************************/
-#define TECR_offBP 0 /* Controld which BP is used as a trigger source */
-#define TECR_offNMI 8 /* Use NMI as a trigger source */
-#define TECR_offHWINT 9 /* Corresponding interrupt is used as a trigger source */
-#define TECR_offEVIC 15 /* Enable HWINT as a trigger source in EVIC mode */
-#define TECR_offSYS 16 /* Enable SYSCALL instruction as a trigger source */
-#define TECR_offDBG 17 /* Enable debug exception as a trigger source */
-#define TECR_offMRE 18 /* Enable MMU related exception as a trigger source */
-#define TECR_offE 19 /* An exception is used as a trigger source */
-/* bit 20:30 reserved */
-#define TECR_offL 31 /* Link/Cascade TECR0 trigger event to TECR1 trigger event */
-
-#define TECR_mskBP ( 0xFF << TECR_offBP )
-#define TECR_mskNMI ( 0x1 << TECR_offBNMI )
-#define TECR_mskHWINT ( 0x3F << TECR_offBHWINT )
-#define TECR_mskEVIC ( 0x1 << TECR_offBEVIC )
-#define TECR_mskSYS ( 0x1 << TECR_offBSYS )
-#define TECR_mskDBG ( 0x1 << TECR_offBDBG )
-#define TECR_mskMRE ( 0x1 << TECR_offBMRE )
-#define TECR_mskE ( 0x1 << TECR_offE )
-#define TECR_mskL ( 0x1 << TECR_offL )
-
-/******************************************************************************
- * pfr0-2: PFMC0-2 (Performance Counter Register 0-2)
- *****************************************************************************/
-
- /* These registers contains performance event count */
-
-/******************************************************************************
- * pfr3: PFM_CTL (Performance Counter Control Register)
- *****************************************************************************/
-#define PFM_CTL_offEN0 0 /* Enable PFMC0 */
-#define PFM_CTL_offEN1 1 /* Enable PFMC1 */
-#define PFM_CTL_offEN2 2 /* Enable PFMC2 */
-#define PFM_CTL_offIE0 3 /* Enable interrupt for PFMC0 */
-#define PFM_CTL_offIE1 4 /* Enable interrupt for PFMC1 */
-#define PFM_CTL_offIE2 5 /* Enable interrupt for PFMC2 */
-#define PFM_CTL_offOVF0 6 /* Overflow bit of PFMC0 */
-#define PFM_CTL_offOVF1 7 /* Overflow bit of PFMC1 */
-#define PFM_CTL_offOVF2 8 /* Overflow bit of PFMC2 */
-#define PFM_CTL_offKS0 9 /* Enable superuser mode event counting for PFMC0 */
-#define PFM_CTL_offKS1 10 /* Enable superuser mode event counting for PFMC1 */
-#define PFM_CTL_offKS2 11 /* Enable superuser mode event counting for PFMC2 */
-#define PFM_CTL_offKU0 12 /* Enable user mode event counting for PFMC0 */
-#define PFM_CTL_offKU1 13 /* Enable user mode event counting for PFMC1 */
-#define PFM_CTL_offKU2 14 /* Enable user mode event counting for PFMC2 */
-#define PFM_CTL_offSEL0 15 /* The event selection for PFMC0 */
-#define PFM_CTL_offSEL1 16 /* The event selection for PFMC1 */
-#define PFM_CTL_offSEL2 22 /* The event selection for PFMC2 */
-/* bit 28:31 reserved */
-
-#define PFM_CTL_mskEN0 ( 0x01 << PFM_CTL_offEN0 )
-#define PFM_CTL_mskEN1 ( 0x01 << PFM_CTL_offEN1 )
-#define PFM_CTL_mskEN2 ( 0x01 << PFM_CTL_offEN2 )
-#define PFM_CTL_mskIE0 ( 0x01 << PFM_CTL_offIE0 )
-#define PFM_CTL_mskIE1 ( 0x01 << PFM_CTL_offIE1 )
-#define PFM_CTL_mskIE2 ( 0x01 << PFM_CTL_offIE2 )
-#define PFM_CTL_mskOVF0 ( 0x01 << PFM_CTL_offOVF0 )
-#define PFM_CTL_mskOVF1 ( 0x01 << PFM_CTL_offOVF1 )
-#define PFM_CTL_mskOVF2 ( 0x01 << PFM_CTL_offOVF2 )
-#define PFM_CTL_mskKS0 ( 0x01 << PFM_CTL_offKS0 )
-#define PFM_CTL_mskKS1 ( 0x01 << PFM_CTL_offKS1 )
-#define PFM_CTL_mskKS2 ( 0x01 << PFM_CTL_offKS2 )
-#define PFM_CTL_mskKU0 ( 0x01 << PFM_CTL_offKU0 )
-#define PFM_CTL_mskKU1 ( 0x01 << PFM_CTL_offKU1 )
-#define PFM_CTL_mskKU2 ( 0x01 << PFM_CTL_offKU2 )
-#define PFM_CTL_mskSEL0 ( 0x01 << PFM_CTL_offSEL0 )
-#define PFM_CTL_mskSEL1 ( 0x3F << PFM_CTL_offSEL1 )
-#define PFM_CTL_mskSEL2 ( 0x3F << PFM_CTL_offSEL2 )
-
-/******************************************************************************
- * SDZ_CTL (Structure Downsizing Control Register)
- *****************************************************************************/
-#define SDZ_CTL_offICDZ 0 /* I-cache downsizing control */
-#define SDZ_CTL_offDCDZ 3 /* D-cache downsizing control */
-#define SDZ_CTL_offMTBDZ 6 /* MTLB downsizing control */
-#define SDZ_CTL_offBTBDZ 9 /* Branch Target Table downsizing control */
-/* bit 12:31 reserved */
-#define SDZ_CTL_mskICDZ ( 0x07 << SDZ_CTL_offICDZ )
-#define SDZ_CTL_mskDCDZ ( 0x07 << SDZ_CTL_offDCDZ )
-#define SDZ_CTL_mskMTBDZ ( 0x07 << SDZ_CTL_offMTBDZ )
-#define SDZ_CTL_mskBTBDZ ( 0x07 << SDZ_CTL_offBTBDZ )
-
-/******************************************************************************
- * N13MISC_CTL (N13 Miscellaneous Control Register)
- *****************************************************************************/
-#define N13MISC_CTL_offBTB 0 /* Disable Branch Target Buffer */
-#define N13MISC_CTL_offRTP 1 /* Disable Return Target Predictor */
-#define N13MISC_CTL_offPTEPF 2 /* Disable HPTWK L2 PTE pefetch */
-#define N13MISC_CTL_offSP_SHADOW_EN 4 /* Enable shadow stack pointers */
-#define MISC_CTL_offHWPRE 11 /* Enable HardWare PREFETCH */
-/* bit 6, 9:31 reserved */
-
-#define N13MISC_CTL_makBTB ( 0x1 << N13MISC_CTL_offBTB )
-#define N13MISC_CTL_makRTP ( 0x1 << N13MISC_CTL_offRTP )
-#define N13MISC_CTL_makPTEPF ( 0x1 << N13MISC_CTL_offPTEPF )
-#define N13MISC_CTL_makSP_SHADOW_EN ( 0x1 << N13MISC_CTL_offSP_SHADOW_EN )
-#define MISC_CTL_makHWPRE_EN ( 0x1 << MISC_CTL_offHWPRE )
-
-#ifdef CONFIG_HW_PRE
-#define MISC_init (N13MISC_CTL_makBTB|N13MISC_CTL_makRTP|N13MISC_CTL_makSP_SHADOW_EN|MISC_CTL_makHWPRE_EN)
-#else
-#define MISC_init (N13MISC_CTL_makBTB|N13MISC_CTL_makRTP|N13MISC_CTL_makSP_SHADOW_EN)
-#endif
-
-/******************************************************************************
- * PRUSR_ACC_CTL (Privileged Resource User Access Control Registers)
- *****************************************************************************/
-#define PRUSR_ACC_CTL_offDMA_EN 0 /* Allow user mode access of DMA registers */
-#define PRUSR_ACC_CTL_offPFM_EN 1 /* Allow user mode access of PFM registers */
-
-#define PRUSR_ACC_CTL_mskDMA_EN ( 0x1 << PRUSR_ACC_CTL_offDMA_EN )
-#define PRUSR_ACC_CTL_mskPFM_EN ( 0x1 << PRUSR_ACC_CTL_offPFM_EN )
-
-/******************************************************************************
- * dmar0: DMA_CFG (DMA Configuration Register)
- *****************************************************************************/
-#define DMA_CFG_offNCHN 0 /* The number of DMA channels implemented */
-#define DMA_CFG_offUNEA 2 /* Un-aligned External Address transfer feature */
-#define DMA_CFG_off2DET 3 /* 2-D Element Transfer feature */
-/* bit 4:15 reserved */
-#define DMA_CFG_offVER 16 /* DMA architecture and implementation version */
-
-#define DMA_CFG_mskNCHN ( 0x3 << DMA_CFG_offNCHN )
-#define DMA_CFG_mskUNEA ( 0x1 << DMA_CFG_offUNEA )
-#define DMA_CFG_msk2DET ( 0x1 << DMA_CFG_off2DET )
-#define DMA_CFG_mskVER ( 0xFFFF << DMA_CFG_offVER )
-
-/******************************************************************************
- * dmar1: DMA_GCSW (DMA Global Control and Status Word Register)
- *****************************************************************************/
-#define DMA_GCSW_offC0STAT 0 /* DMA channel 0 state */
-#define DMA_GCSW_offC1STAT 3 /* DMA channel 1 state */
-/* bit 6:11 reserved */
-#define DMA_GCSW_offC0INT 12 /* DMA channel 0 generate interrupt */
-#define DMA_GCSW_offC1INT 13 /* DMA channel 1 generate interrupt */
-/* bit 14:30 reserved */
-#define DMA_GCSW_offEN 31 /* Enable DMA engine */
-
-#define DMA_GCSW_mskC0STAT ( 0x7 << DMA_GCSW_offC0STAT )
-#define DMA_GCSW_mskC1STAT ( 0x7 << DMA_GCSW_offC1STAT )
-#define DMA_GCSW_mskC0INT ( 0x1 << DMA_GCSW_offC0INT )
-#define DMA_GCSW_mskC1INT ( 0x1 << DMA_GCSW_offC1INT )
-#define DMA_GCSW_mskEN ( 0x1 << DMA_GCSW_offEN )
-
-/******************************************************************************
- * dmar2: DMA_CHNSEL (DMA Channel Selection Register)
- *****************************************************************************/
-#define DMA_CHNSEL_offCHAN 0 /* Selected channel number */
-/* bit 2:31 reserved */
-
-#define DMA_CHNSEL_mskCHAN ( 0x3 << DMA_CHNSEL_offCHAN )
-
-/******************************************************************************
- * dmar3: DMA_ACT (DMA Action Register)
- *****************************************************************************/
-#define DMA_ACT_offACMD 0 /* DMA Action Command */
-/* bit 2:31 reserved */
-#define DMA_ACT_mskACMD ( 0x3 << DMA_ACT_offACMD )
-
-/******************************************************************************
- * dmar4: DMA_SETUP (DMA Setup Register)
- *****************************************************************************/
-#define DMA_SETUP_offLM 0 /* Local Memory Selection */
-#define DMA_SETUP_offTDIR 1 /* Transfer Direction */
-#define DMA_SETUP_offTES 2 /* Transfer Element Size */
-#define DMA_SETUP_offESTR 4 /* External memory transfer Stride */
-#define DMA_SETUP_offCIE 16 /* Interrupt Enable on Completion */
-#define DMA_SETUP_offSIE 17 /* Interrupt Enable on explicit Stop */
-#define DMA_SETUP_offEIE 18 /* Interrupt Enable on Error */
-#define DMA_SETUP_offUE 19 /* Enable the Un-aligned External Address */
-#define DMA_SETUP_off2DE 20 /* Enable the 2-D External Transfer */
-#define DMA_SETUP_offCOA 21 /* Transfer Coalescable */
-/* bit 22:31 reserved */
-
-#define DMA_SETUP_mskLM ( 0x1 << DMA_SETUP_offLM )
-#define DMA_SETUP_mskTDIR ( 0x1 << DMA_SETUP_offTDIR )
-#define DMA_SETUP_mskTES ( 0x3 << DMA_SETUP_offTES )
-#define DMA_SETUP_mskESTR ( 0xFFF << DMA_SETUP_offESTR )
-#define DMA_SETUP_mskCIE ( 0x1 << DMA_SETUP_offCIE )
-#define DMA_SETUP_mskSIE ( 0x1 << DMA_SETUP_offSIE )
-#define DMA_SETUP_mskEIE ( 0x1 << DMA_SETUP_offEIE )
-#define DMA_SETUP_mskUE ( 0x1 << DMA_SETUP_offUE )
-#define DMA_SETUP_msk2DE ( 0x1 << DMA_SETUP_off2DE )
-#define DMA_SETUP_mskCOA ( 0x1 << DMA_SETUP_offCOA )
-
-/******************************************************************************
- * dmar5: DMA_ISADDR (DMA Internal Start Address Register)
- *****************************************************************************/
-#define DMA_ISADDR_offISADDR 0 /* Internal Start Address */
-/* bit 20:31 reserved */
-#define DMA_ISADDR_mskISADDR ( 0xFFFFF << DMA_ISADDR_offISADDR )
-
-/******************************************************************************
- * dmar6: DMA_ESADDR (DMA External Start Address Register)
- *****************************************************************************/
-/* This register holds External Start Address */
-
-/******************************************************************************
- * dmar7: DMA_TCNT (DMA Transfer Element Count Register)
- *****************************************************************************/
-#define DMA_TCNT_offTCNT 0 /* DMA transfer element count */
-/* bit 18:31 reserved */
-#define DMA_TCNT_mskTCNT ( 0x3FFFF << DMA_TCNT_offTCNT )
-
-/******************************************************************************
- * dmar8: DMA_STATUS (DMA Status Register)
- *****************************************************************************/
-#define DMA_STATUS_offSTAT 0 /* DMA channel state */
-#define DMA_STATUS_offSTUNA 3 /* Un-aligned error on External Stride value */
-#define DMA_STATUS_offDERR 4 /* DMA Transfer Disruption Error */
-#define DMA_STATUS_offEUNA 5 /* Un-aligned error on the External address */
-#define DMA_STATUS_offIUNA 6 /* Un-aligned error on the Internal address */
-#define DMA_STATUS_offIOOR 7 /* Out-Of-Range error on the Internal address */
-#define DMA_STATUS_offEBUS 8 /* Bus Error on an External DMA transfer */
-#define DMA_STATUS_offESUP 9 /* DMA setup error */
-/* bit 10:31 reserved */
-
-#define DMA_STATUS_mskSTAT ( 0x7 << DMA_STATUS_offSTAT )
-#define DMA_STATUS_mskSTUNA ( 0x1 << DMDMA_STATUS_offSTUNA )
-#define DMA_STATUS_mskDERR ( 0x1 << DMDMA_STATUS_offDERR )
-#define DMA_STATUS_mskEUNA ( 0x1 << DMDMA_STATUS_offEUNA )
-#define DMA_STATUS_mskIUNA ( 0x1 << DMDMA_STATUS_offIUNA )
-#define DMA_STATUS_mskIOOR ( 0x1 << DMDMA_STATUS_offIOOR )
-#define DMA_STATUS_mskEBUS ( 0x1 << DMDMA_STATUS_offEBUS )
-#define DMA_STATUS_mskESUP ( 0x1 << DMDMA_STATUS_offESUP )
-
-/******************************************************************************
- * dmar9: DMA_2DSET (DMA 2D Setup Register)
- *****************************************************************************/
-#define DMA_2DSET_offWECNT 0 /* The Width Element Count for a 2-D region */
-#define DMA_2DSET_offHTSTR 16 /* The Height Stride for a 2-D region */
-
-#define DMA_2DSET_mskHTSTR ( 0xFFFF << DMA_2DSET_offHTSTR )
-#define DMA_2DSET_mskWECNT ( 0xFFFF << DMA_2DSET_offWECNT )
-
-/******************************************************************************
- * dmar10: DMA_2DSCTL (DMA 2D Startup Control Register)
- *****************************************************************************/
-#define DMA_2DSCTL_offSTWECNT 0 /* Startup Width Element Count for a 2-D region */
-/* bit 16:31 reserved */
-
-#define DMA_2DSCTL_mskSTWECNT ( 0xFFFF << DMA_2DSCTL_offSTWECNT )
-
-/******************************************************************************
- * fpcsr: FPCSR (Floating-Point Control Status Register)
- *****************************************************************************/
-#define FPCSR_offRM 0
-#define FPCSR_offIVO 2
-#define FPCSR_offDBZ 3
-#define FPCSR_offOVF 4
-#define FPCSR_offUDF 5
-#define FPCSR_offIEX 6
-#define FPCSR_offIVOE 7
-#define FPCSR_offDBZE 8
-#define FPCSR_offOVFE 9
-#define FPCSR_offUDFE 10
-#define FPCSR_offIEXE 11
-#define FPCSR_offDNZ 12
-#define FPCSR_offIVOT 13
-#define FPCSR_offDBZT 14
-#define FPCSR_offOVFT 15
-#define FPCSR_offUDFT 16
-#define FPCSR_offIEXT 17
-#define FPCSR_offDNIT 18
-#define FPCSR_offRIT 19
-
-#define FPCSR_mskRM ( 0x3 << FPCSR_offRM )
-#define FPCSR_mskIVO ( 0x1 << FPCSR_offIVO )
-#define FPCSR_mskDBZ ( 0x1 << FPCSR_offDBZ )
-#define FPCSR_mskOVF ( 0x1 << FPCSR_offOVF )
-#define FPCSR_mskUDF ( 0x1 << FPCSR_offUDF )
-#define FPCSR_mskIEX ( 0x1 << FPCSR_offIEX )
-#define FPCSR_mskIVOE ( 0x1 << FPCSR_offIVOE )
-#define FPCSR_mskDBZE ( 0x1 << FPCSR_offDBZE )
-#define FPCSR_mskOVFE ( 0x1 << FPCSR_offOVFE )
-#define FPCSR_mskUDFE ( 0x1 << FPCSR_offUDFE )
-#define FPCSR_mskIEXE ( 0x1 << FPCSR_offIEXE )
-#define FPCSR_mskDNZ ( 0x1 << FPCSR_offDNZ )
-#define FPCSR_mskIVOT ( 0x1 << FPCSR_offIVOT )
-#define FPCSR_mskDBZT ( 0x1 << FPCSR_offDBZT )
-#define FPCSR_mskOVFT ( 0x1 << FPCSR_offOVFT )
-#define FPCSR_mskUDFT ( 0x1 << FPCSR_offUDFT )
-#define FPCSR_mskIEXT ( 0x1 << FPCSR_offIEXT )
-#define FPCSR_mskDNIT ( 0x1 << FPCSR_offDNIT )
-#define FPCSR_mskRIT ( 0x1 << FPCSR_offRIT )
-#define FPCSR_mskALL (FPCSR_mskIVO | FPCSR_mskDBZ | FPCSR_mskOVF | FPCSR_mskUDF | FPCSR_mskIEX)
-#define FPCSR_mskALLE_NO_UDF_IEXE (FPCSR_mskIVOE | FPCSR_mskDBZE | FPCSR_mskOVFE)
-#define FPCSR_mskALLE (FPCSR_mskIVOE | FPCSR_mskDBZE | FPCSR_mskOVFE | FPCSR_mskUDFE | FPCSR_mskIEXE)
-#define FPCSR_mskALLT (FPCSR_mskIVOT | FPCSR_mskDBZT | FPCSR_mskOVFT | FPCSR_mskUDFT | FPCSR_mskIEXT |FPCSR_mskDNIT | FPCSR_mskRIT)
-
-/******************************************************************************
- * fpcfg: FPCFG (Floating-Point Configuration Register)
- *****************************************************************************/
-#define FPCFG_offSP 0
-#define FPCFG_offDP 1
-#define FPCFG_offFREG 2
-#define FPCFG_offFMA 4
-#define FPCFG_offIMVER 22
-#define FPCFG_offAVER 27
-
-#define FPCFG_mskSP ( 0x1 << FPCFG_offSP )
-#define FPCFG_mskDP ( 0x1 << FPCFG_offDP )
-#define FPCFG_mskFREG ( 0x3 << FPCFG_offFREG )
-#define FPCFG_mskFMA ( 0x1 << FPCFG_offFMA )
-#define FPCFG_mskIMVER ( 0x1F << FPCFG_offIMVER )
-#define FPCFG_mskAVER ( 0x1F << FPCFG_offAVER )
-
-/* 8 Single precision or 4 double precision registers are available */
-#define SP8_DP4_reg 0
-/* 16 Single precision or 8 double precision registers are available */
-#define SP16_DP8_reg 1
-/* 32 Single precision or 16 double precision registers are available */
-#define SP32_DP16_reg 2
-/* 32 Single precision or 32 double precision registers are available */
-#define SP32_DP32_reg 3
-
-/******************************************************************************
- * fucpr: FUCOP_CTL (FPU and Coprocessor Enable Control Register)
- *****************************************************************************/
-#define FUCOP_CTL_offCP0EN 0
-#define FUCOP_CTL_offCP1EN 1
-#define FUCOP_CTL_offCP2EN 2
-#define FUCOP_CTL_offCP3EN 3
-#define FUCOP_CTL_offAUEN 31
-
-#define FUCOP_CTL_mskCP0EN ( 0x1 << FUCOP_CTL_offCP0EN )
-#define FUCOP_CTL_mskCP1EN ( 0x1 << FUCOP_CTL_offCP1EN )
-#define FUCOP_CTL_mskCP2EN ( 0x1 << FUCOP_CTL_offCP2EN )
-#define FUCOP_CTL_mskCP3EN ( 0x1 << FUCOP_CTL_offCP3EN )
-#define FUCOP_CTL_mskAUEN ( 0x1 << FUCOP_CTL_offAUEN )
-
-#endif /* __NDS32_BITFIELD_H__ */
diff --git a/arch/nds32/include/asm/cache.h b/arch/nds32/include/asm/cache.h
deleted file mode 100644
index fc3c41b59169..000000000000
--- a/arch/nds32/include/asm/cache.h
+++ /dev/null
@@ -1,12 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#ifndef __NDS32_CACHE_H__
-#define __NDS32_CACHE_H__
-
-#define L1_CACHE_BYTES 32
-#define L1_CACHE_SHIFT 5
-
-#define ARCH_DMA_MINALIGN L1_CACHE_BYTES
-
-#endif /* __NDS32_CACHE_H__ */
diff --git a/arch/nds32/include/asm/cache_info.h b/arch/nds32/include/asm/cache_info.h
deleted file mode 100644
index e89d8078f3a6..000000000000
--- a/arch/nds32/include/asm/cache_info.h
+++ /dev/null
@@ -1,13 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-struct cache_info {
- unsigned char ways;
- unsigned char line_size;
- unsigned short sets;
- unsigned short size;
-#if defined(CONFIG_CPU_CACHE_ALIASING)
- unsigned short aliasing_num;
- unsigned int aliasing_mask;
-#endif
-};
diff --git a/arch/nds32/include/asm/cacheflush.h b/arch/nds32/include/asm/cacheflush.h
deleted file mode 100644
index c2a222ebfa2a..000000000000
--- a/arch/nds32/include/asm/cacheflush.h
+++ /dev/null
@@ -1,53 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#ifndef __NDS32_CACHEFLUSH_H__
-#define __NDS32_CACHEFLUSH_H__
-
-#include <linux/mm.h>
-
-#define PG_dcache_dirty PG_arch_1
-
-void flush_icache_range(unsigned long start, unsigned long end);
-#define flush_icache_range flush_icache_range
-
-void flush_icache_page(struct vm_area_struct *vma, struct page *page);
-#define flush_icache_page flush_icache_page
-
-#ifdef CONFIG_CPU_CACHE_ALIASING
-void flush_cache_mm(struct mm_struct *mm);
-void flush_cache_dup_mm(struct mm_struct *mm);
-void flush_cache_range(struct vm_area_struct *vma,
- unsigned long start, unsigned long end);
-void flush_cache_page(struct vm_area_struct *vma,
- unsigned long addr, unsigned long pfn);
-void flush_cache_kmaps(void);
-void flush_cache_vmap(unsigned long start, unsigned long end);
-void flush_cache_vunmap(unsigned long start, unsigned long end);
-
-#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
-void flush_dcache_page(struct page *page);
-void copy_to_user_page(struct vm_area_struct *vma, struct page *page,
- unsigned long vaddr, void *dst, void *src, int len);
-void copy_from_user_page(struct vm_area_struct *vma, struct page *page,
- unsigned long vaddr, void *dst, void *src, int len);
-
-#define ARCH_HAS_FLUSH_ANON_PAGE
-void flush_anon_page(struct vm_area_struct *vma,
- struct page *page, unsigned long vaddr);
-
-#define ARCH_IMPLEMENTS_FLUSH_KERNEL_VMAP_RANGE 1
-void flush_kernel_vmap_range(void *addr, int size);
-void invalidate_kernel_vmap_range(void *addr, int size);
-#define flush_dcache_mmap_lock(mapping) xa_lock_irq(&(mapping)->i_pages)
-#define flush_dcache_mmap_unlock(mapping) xa_unlock_irq(&(mapping)->i_pages)
-
-#else
-void flush_icache_user_page(struct vm_area_struct *vma, struct page *page,
- unsigned long addr, int len);
-#define flush_icache_user_page flush_icache_user_page
-
-#include <asm-generic/cacheflush.h>
-#endif
-
-#endif /* __NDS32_CACHEFLUSH_H__ */
diff --git a/arch/nds32/include/asm/current.h b/arch/nds32/include/asm/current.h
deleted file mode 100644
index 65d30096142b..000000000000
--- a/arch/nds32/include/asm/current.h
+++ /dev/null
@@ -1,12 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#ifndef _ASM_NDS32_CURRENT_H
-#define _ASM_NDS32_CURRENT_H
-
-#ifndef __ASSEMBLY__
-register struct task_struct *current asm("$r25");
-#endif /* __ASSEMBLY__ */
-#define tsk $r25
-
-#endif /* _ASM_NDS32_CURRENT_H */
diff --git a/arch/nds32/include/asm/delay.h b/arch/nds32/include/asm/delay.h
deleted file mode 100644
index 56ea3894f8f8..000000000000
--- a/arch/nds32/include/asm/delay.h
+++ /dev/null
@@ -1,39 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#ifndef __NDS32_DELAY_H__
-#define __NDS32_DELAY_H__
-
-#include <asm/param.h>
-
-/* There is no clocksource cycle counter in the CPU. */
-static inline void __delay(unsigned long loops)
-{
- __asm__ __volatile__(".align 2\n"
- "1:\n"
- "\taddi\t%0, %0, -1\n"
- "\tbgtz\t%0, 1b\n"
- :"=r"(loops)
- :"0"(loops));
-}
-
-static inline void __udelay(unsigned long usecs, unsigned long lpj)
-{
- usecs *= (unsigned long)(((0x8000000000000000ULL / (500000 / HZ)) +
- 0x80000000ULL) >> 32);
- usecs = (unsigned long)(((unsigned long long)usecs * lpj) >> 32);
- __delay(usecs);
-}
-
-#define udelay(usecs) __udelay((usecs), loops_per_jiffy)
-
-/* make sure "usecs *= ..." in udelay do not overflow. */
-#if HZ >= 1000
-#define MAX_UDELAY_MS 1
-#elif HZ <= 200
-#define MAX_UDELAY_MS 5
-#else
-#define MAX_UDELAY_MS (1000 / HZ)
-#endif
-
-#endif
diff --git a/arch/nds32/include/asm/elf.h b/arch/nds32/include/asm/elf.h
deleted file mode 100644
index 1853dc89b8ac..000000000000
--- a/arch/nds32/include/asm/elf.h
+++ /dev/null
@@ -1,180 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#ifndef __ASMNDS32_ELF_H
-#define __ASMNDS32_ELF_H
-
-/*
- * ELF register definitions..
- */
-
-#include <asm/ptrace.h>
-#include <asm/fpu.h>
-#include <linux/elf-em.h>
-
-typedef unsigned long elf_greg_t;
-typedef unsigned long elf_freg_t[3];
-
-extern unsigned int elf_hwcap;
-
-#define R_NDS32_NONE 0
-#define R_NDS32_16_RELA 19
-#define R_NDS32_32_RELA 20
-#define R_NDS32_9_PCREL_RELA 22
-#define R_NDS32_15_PCREL_RELA 23
-#define R_NDS32_17_PCREL_RELA 24
-#define R_NDS32_25_PCREL_RELA 25
-#define R_NDS32_HI20_RELA 26
-#define R_NDS32_LO12S3_RELA 27
-#define R_NDS32_LO12S2_RELA 28
-#define R_NDS32_LO12S1_RELA 29
-#define R_NDS32_LO12S0_RELA 30
-#define R_NDS32_SDA15S3_RELA 31
-#define R_NDS32_SDA15S2_RELA 32
-#define R_NDS32_SDA15S1_RELA 33
-#define R_NDS32_SDA15S0_RELA 34
-#define R_NDS32_GOT20 37
-#define R_NDS32_25_PLTREL 38
-#define R_NDS32_COPY 39
-#define R_NDS32_GLOB_DAT 40
-#define R_NDS32_JMP_SLOT 41
-#define R_NDS32_RELATIVE 42
-#define R_NDS32_GOTOFF 43
-#define R_NDS32_GOTPC20 44
-#define R_NDS32_GOT_HI20 45
-#define R_NDS32_GOT_LO12 46
-#define R_NDS32_GOTPC_HI20 47
-#define R_NDS32_GOTPC_LO12 48
-#define R_NDS32_GOTOFF_HI20 49
-#define R_NDS32_GOTOFF_LO12 50
-#define R_NDS32_INSN16 51
-#define R_NDS32_LABEL 52
-#define R_NDS32_LONGCALL1 53
-#define R_NDS32_LONGCALL2 54
-#define R_NDS32_LONGCALL3 55
-#define R_NDS32_LONGJUMP1 56
-#define R_NDS32_LONGJUMP2 57
-#define R_NDS32_LONGJUMP3 58
-#define R_NDS32_LOADSTORE 59
-#define R_NDS32_9_FIXED_RELA 60
-#define R_NDS32_15_FIXED_RELA 61
-#define R_NDS32_17_FIXED_RELA 62
-#define R_NDS32_25_FIXED_RELA 63
-#define R_NDS32_PLTREL_HI20 64
-#define R_NDS32_PLTREL_LO12 65
-#define R_NDS32_PLT_GOTREL_HI20 66
-#define R_NDS32_PLT_GOTREL_LO12 67
-#define R_NDS32_LO12S0_ORI_RELA 72
-#define R_NDS32_DWARF2_OP1_RELA 77
-#define R_NDS32_DWARF2_OP2_RELA 78
-#define R_NDS32_DWARF2_LEB_RELA 79
-#define R_NDS32_WORD_9_PCREL_RELA 94
-#define R_NDS32_LONGCALL4 107
-#define R_NDS32_RELA_NOP_MIX 192
-#define R_NDS32_RELA_NOP_MAX 255
-
-#define ELF_NGREG (sizeof (struct user_pt_regs) / sizeof(elf_greg_t))
-#define ELF_CORE_COPY_REGS(dest, regs) \
- *(struct user_pt_regs *)&(dest) = (regs)->user_regs;
-
-typedef elf_greg_t elf_gregset_t[ELF_NGREG];
-
-/* Core file format: The core file is written in such a way that gdb
- can understand it and provide useful information to the user (under
- linux we use the 'trad-core' bfd). There are quite a number of
- obstacles to being able to view the contents of the floating point
- registers, and until these are solved you will not be able to view the
- contents of them. Actually, you can read in the core file and look at
- the contents of the user struct to find out what the floating point
- registers contain.
- The actual file contents are as follows:
- UPAGE: 1 page consisting of a user struct that tells gdb what is present
- in the file. Directly after this is a copy of the task_struct, which
- is currently not used by gdb, but it may come in useful at some point.
- All of the registers are stored as part of the upage. The upage should
- always be only one page.
- DATA: The data area is stored. We use current->end_text to
- current->brk to pick up all of the user variables, plus any memory
- that may have been malloced. No attempt is made to determine if a page
- is demand-zero or if a page is totally unused, we just cover the entire
- range. All of the addresses are rounded in such a way that an integral
- number of pages is written.
- STACK: We need the stack information in order to get a meaningful
- backtrace. We need to write the data from (esp) to
- current->start_stack, so we round each of these off in order to be able
- to write an integer number of pages.
- The minimum core file size is 3 pages, or 12288 bytes.
-*/
-
-struct user_fp {
- unsigned long long fd_regs[32];
- unsigned long fpcsr;
-};
-
-typedef struct user_fp elf_fpregset_t;
-
-struct elf32_hdr;
-#define elf_check_arch(x) ((x)->e_machine == EM_NDS32)
-
-/*
- * These are used to set parameters in the core dumps.
- */
-#define ELF_CLASS ELFCLASS32
-#ifdef __NDS32_EB__
-#define ELF_DATA ELFDATA2MSB
-#else
-#define ELF_DATA ELFDATA2LSB
-#endif
-#define ELF_ARCH EM_NDS32
-#define ELF_EXEC_PAGESIZE PAGE_SIZE
-
-/* This is the location that an ET_DYN program is loaded if exec'ed. Typical
- use of this is to invoke "./ld.so someprog" to test out a new version of
- the loader. We need to make sure that it is out of the way of the program
- that it will "exec", and that there is sufficient room for the brk. */
-
-#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3)
-
-/* When the program starts, a1 contains a pointer to a function to be
- registered with atexit, as per the SVR4 ABI. A value of 0 means we
- have no such handler. */
-#define ELF_PLAT_INIT(_r, load_addr) (_r)->uregs[0] = 0
-
-/* This yields a mask that user programs can use to figure out what
- instruction set this cpu supports. */
-
-#define ELF_HWCAP (elf_hwcap)
-
-#ifdef __KERNEL__
-
-#define ELF_PLATFORM (NULL)
-
-/* Old NetWinder binaries were compiled in such a way that the iBCS
- heuristic always trips on them. Until these binaries become uncommon
- enough not to care, don't trust the `ibcs' flag here. In any case
- there is no other ELF system currently supported by iBCS.
- @@ Could print a warning message to encourage users to upgrade. */
-#define SET_PERSONALITY(ex) set_personality(PER_LINUX)
-
-#endif
-
-
-#if IS_ENABLED(CONFIG_FPU)
-#define FPU_AUX_ENT NEW_AUX_ENT(AT_FPUCW, FPCSR_INIT)
-#else
-#define FPU_AUX_ENT NEW_AUX_ENT(AT_IGNORE, 0)
-#endif
-
-#define ARCH_DLINFO \
-do { \
- /* Optional FPU initialization */ \
- FPU_AUX_ENT; \
- \
- NEW_AUX_ENT(AT_SYSINFO_EHDR, \
- (elf_addr_t)current->mm->context.vdso); \
-} while (0)
-#define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
-struct linux_binprm;
-int arch_setup_additional_pages(struct linux_binprm *, int);
-
-#endif
diff --git a/arch/nds32/include/asm/fixmap.h b/arch/nds32/include/asm/fixmap.h
deleted file mode 100644
index 2fa09a2de428..000000000000
--- a/arch/nds32/include/asm/fixmap.h
+++ /dev/null
@@ -1,29 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#ifndef __ASM_NDS32_FIXMAP_H
-#define __ASM_NDS32_FIXMAP_H
-
-#ifdef CONFIG_HIGHMEM
-#include <linux/threads.h>
-#include <asm/kmap_size.h>
-#endif
-
-enum fixed_addresses {
- FIX_HOLE,
- FIX_KMAP_RESERVED,
- FIX_KMAP_BEGIN,
-#ifdef CONFIG_HIGHMEM
- FIX_KMAP_END = FIX_KMAP_BEGIN + (KM_MAX_IDX * NR_CPUS) - 1,
-#endif
- FIX_EARLYCON_MEM_BASE,
- __end_of_fixed_addresses
-};
-#define FIXADDR_TOP ((unsigned long) (-(16 * PAGE_SIZE)))
-#define FIXADDR_SIZE ((__end_of_fixed_addresses) << PAGE_SHIFT)
-#define FIXADDR_START (FIXADDR_TOP - FIXADDR_SIZE)
-#define FIXMAP_PAGE_IO __pgprot(PAGE_DEVICE)
-void __set_fixmap(enum fixed_addresses idx, phys_addr_t phys, pgprot_t prot);
-
-#include <asm-generic/fixmap.h>
-#endif /* __ASM_NDS32_FIXMAP_H */
diff --git a/arch/nds32/include/asm/fpu.h b/arch/nds32/include/asm/fpu.h
deleted file mode 100644
index 8294ed4aaa2c..000000000000
--- a/arch/nds32/include/asm/fpu.h
+++ /dev/null
@@ -1,126 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/* Copyright (C) 2005-2018 Andes Technology Corporation */
-
-#ifndef __ASM_NDS32_FPU_H
-#define __ASM_NDS32_FPU_H
-
-#if IS_ENABLED(CONFIG_FPU)
-#ifndef __ASSEMBLY__
-#include <linux/sched/task_stack.h>
-#include <linux/preempt.h>
-#include <asm/ptrace.h>
-
-extern bool has_fpu;
-
-extern void save_fpu(struct task_struct *__tsk);
-extern void load_fpu(const struct fpu_struct *fpregs);
-extern bool do_fpu_exception(unsigned int subtype, struct pt_regs *regs);
-extern int do_fpuemu(struct pt_regs *regs, struct fpu_struct *fpu);
-
-#define test_tsk_fpu(regs) (regs->fucop_ctl & FUCOP_CTL_mskCP0EN)
-
-/*
- * Initially load the FPU with signalling NANS. This bit pattern
- * has the property that no matter whether considered as single or as
- * double precision, it still represents a signalling NAN.
- */
-
-#define sNAN64 0xFFFFFFFFFFFFFFFFULL
-#define sNAN32 0xFFFFFFFFUL
-
-#if IS_ENABLED(CONFIG_SUPPORT_DENORMAL_ARITHMETIC)
-/*
- * Denormalized number is unsupported by nds32 FPU. Hence the operation
- * is treated as underflow cases when the final result is a denormalized
- * number. To enhance precision, underflow exception trap should be
- * enabled by default and kerenl will re-execute it by fpu emulator
- * when getting underflow exception.
- */
-#define FPCSR_INIT (FPCSR_mskUDFE | FPCSR_mskIEXE)
-#else
-#define FPCSR_INIT 0x0UL
-#endif
-
-extern const struct fpu_struct init_fpuregs;
-
-static inline void disable_ptreg_fpu(struct pt_regs *regs)
-{
- regs->fucop_ctl &= ~FUCOP_CTL_mskCP0EN;
-}
-
-static inline void enable_ptreg_fpu(struct pt_regs *regs)
-{
- regs->fucop_ctl |= FUCOP_CTL_mskCP0EN;
-}
-
-static inline void enable_fpu(void)
-{
- unsigned long fucop_ctl;
-
- fucop_ctl = __nds32__mfsr(NDS32_SR_FUCOP_CTL) | FUCOP_CTL_mskCP0EN;
- __nds32__mtsr(fucop_ctl, NDS32_SR_FUCOP_CTL);
- __nds32__isb();
-}
-
-static inline void disable_fpu(void)
-{
- unsigned long fucop_ctl;
-
- fucop_ctl = __nds32__mfsr(NDS32_SR_FUCOP_CTL) & ~FUCOP_CTL_mskCP0EN;
- __nds32__mtsr(fucop_ctl, NDS32_SR_FUCOP_CTL);
- __nds32__isb();
-}
-
-static inline void lose_fpu(void)
-{
- preempt_disable();
-#if IS_ENABLED(CONFIG_LAZY_FPU)
- if (last_task_used_math == current) {
- last_task_used_math = NULL;
-#else
- if (test_tsk_fpu(task_pt_regs(current))) {
-#endif
- save_fpu(current);
- }
- disable_ptreg_fpu(task_pt_regs(current));
- preempt_enable();
-}
-
-static inline void own_fpu(void)
-{
- preempt_disable();
-#if IS_ENABLED(CONFIG_LAZY_FPU)
- if (last_task_used_math != current) {
- if (last_task_used_math != NULL)
- save_fpu(last_task_used_math);
- load_fpu(¤t->thread.fpu);
- last_task_used_math = current;
- }
-#else
- if (!test_tsk_fpu(task_pt_regs(current))) {
- load_fpu(¤t->thread.fpu);
- }
-#endif
- enable_ptreg_fpu(task_pt_regs(current));
- preempt_enable();
-}
-
-#if !IS_ENABLED(CONFIG_LAZY_FPU)
-static inline void unlazy_fpu(struct task_struct *tsk)
-{
- preempt_disable();
- if (test_tsk_fpu(task_pt_regs(tsk)))
- save_fpu(tsk);
- preempt_enable();
-}
-#endif /* !CONFIG_LAZY_FPU */
-static inline void clear_fpu(struct pt_regs *regs)
-{
- preempt_disable();
- if (test_tsk_fpu(regs))
- disable_ptreg_fpu(regs);
- preempt_enable();
-}
-#endif /* CONFIG_FPU */
-#endif /* __ASSEMBLY__ */
-#endif /* __ASM_NDS32_FPU_H */
diff --git a/arch/nds32/include/asm/fpuemu.h b/arch/nds32/include/asm/fpuemu.h
deleted file mode 100644
index 63e7ef5f7969..000000000000
--- a/arch/nds32/include/asm/fpuemu.h
+++ /dev/null
@@ -1,44 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/* Copyright (C) 2005-2018 Andes Technology Corporation */
-
-#ifndef __ARCH_NDS32_FPUEMU_H
-#define __ARCH_NDS32_FPUEMU_H
-
-/*
- * single precision
- */
-
-void fadds(void *ft, void *fa, void *fb);
-void fsubs(void *ft, void *fa, void *fb);
-void fmuls(void *ft, void *fa, void *fb);
-void fdivs(void *ft, void *fa, void *fb);
-void fs2d(void *ft, void *fa);
-void fs2si(void *ft, void *fa);
-void fs2si_z(void *ft, void *fa);
-void fs2ui(void *ft, void *fa);
-void fs2ui_z(void *ft, void *fa);
-void fsi2s(void *ft, void *fa);
-void fui2s(void *ft, void *fa);
-void fsqrts(void *ft, void *fa);
-void fnegs(void *ft, void *fa);
-int fcmps(void *ft, void *fa, void *fb, int cop);
-
-/*
- * double precision
- */
-void faddd(void *ft, void *fa, void *fb);
-void fsubd(void *ft, void *fa, void *fb);
-void fmuld(void *ft, void *fa, void *fb);
-void fdivd(void *ft, void *fa, void *fb);
-void fsqrtd(void *ft, void *fa);
-void fd2s(void *ft, void *fa);
-void fd2si(void *ft, void *fa);
-void fd2si_z(void *ft, void *fa);
-void fd2ui(void *ft, void *fa);
-void fd2ui_z(void *ft, void *fa);
-void fsi2d(void *ft, void *fa);
-void fui2d(void *ft, void *fa);
-void fnegd(void *ft, void *fa);
-int fcmpd(void *ft, void *fa, void *fb, int cop);
-
-#endif /* __ARCH_NDS32_FPUEMU_H */
diff --git a/arch/nds32/include/asm/ftrace.h b/arch/nds32/include/asm/ftrace.h
deleted file mode 100644
index 2f96cc96aa35..000000000000
--- a/arch/nds32/include/asm/ftrace.h
+++ /dev/null
@@ -1,46 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-
-#ifndef __ASM_NDS32_FTRACE_H
-#define __ASM_NDS32_FTRACE_H
-
-#ifdef CONFIG_FUNCTION_TRACER
-
-#define HAVE_FUNCTION_GRAPH_FP_TEST
-
-#define MCOUNT_ADDR ((unsigned long)(_mcount))
-/* mcount call is composed of three instructions:
- * sethi + ori + jral
- */
-#define MCOUNT_INSN_SIZE 12
-
-extern void _mcount(unsigned long parent_ip);
-
-#ifdef CONFIG_DYNAMIC_FTRACE
-
-#define FTRACE_ADDR ((unsigned long)_ftrace_caller)
-
-#ifdef __NDS32_EL__
-#define INSN_NOP 0x09000040
-#define INSN_SIZE(insn) (((insn & 0x00000080) == 0) ? 4 : 2)
-#define IS_SETHI(insn) ((insn & 0x000000fe) == 0x00000046)
-#define ENDIAN_CONVERT(insn) be32_to_cpu(insn)
-#else /* __NDS32_EB__ */
-#define INSN_NOP 0x40000009
-#define INSN_SIZE(insn) (((insn & 0x80000000) == 0) ? 4 : 2)
-#define IS_SETHI(insn) ((insn & 0xfe000000) == 0x46000000)
-#define ENDIAN_CONVERT(insn) (insn)
-#endif
-
-extern void _ftrace_caller(unsigned long parent_ip);
-static inline unsigned long ftrace_call_adjust(unsigned long addr)
-{
- return addr;
-}
-struct dyn_arch_ftrace {
-};
-
-#endif /* CONFIG_DYNAMIC_FTRACE */
-
-#endif /* CONFIG_FUNCTION_TRACER */
-
-#endif /* __ASM_NDS32_FTRACE_H */
diff --git a/arch/nds32/include/asm/futex.h b/arch/nds32/include/asm/futex.h
deleted file mode 100644
index 4223f473bd36..000000000000
--- a/arch/nds32/include/asm/futex.h
+++ /dev/null
@@ -1,101 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#ifndef __NDS32_FUTEX_H__
-#define __NDS32_FUTEX_H__
-
-#include <linux/futex.h>
-#include <linux/uaccess.h>
-#include <asm/errno.h>
-
-#define __futex_atomic_ex_table(err_reg) \
- " .pushsection __ex_table,\"a\"\n" \
- " .align 3\n" \
- " .long 1b, 4f\n" \
- " .long 2b, 4f\n" \
- " .popsection\n" \
- " .pushsection .fixup,\"ax\"\n" \
- "4: move %0, " err_reg "\n" \
- " b 3b\n" \
- " .popsection"
-
-#define __futex_atomic_op(insn, ret, oldval, tmp, uaddr, oparg) \
- smp_mb(); \
- asm volatile( \
- " movi $ta, #0\n" \
- "1: llw %1, [%2+$ta]\n" \
- " " insn "\n" \
- "2: scw %0, [%2+$ta]\n" \
- " beqz %0, 1b\n" \
- " movi %0, #0\n" \
- "3:\n" \
- __futex_atomic_ex_table("%4") \
- : "=&r" (ret), "=&r" (oldval) \
- : "r" (uaddr), "r" (oparg), "i" (-EFAULT) \
- : "cc", "memory")
-static inline int
-futex_atomic_cmpxchg_inatomic(u32 * uval, u32 __user * uaddr,
- u32 oldval, u32 newval)
-{
- int ret = 0;
- u32 val, tmp, flags;
-
- if (!access_ok(uaddr, sizeof(u32)))
- return -EFAULT;
-
- smp_mb();
- asm volatile (" movi $ta, #0\n"
- "1: llw %1, [%6 + $ta]\n"
- " sub %3, %1, %4\n"
- " cmovz %2, %5, %3\n"
- " cmovn %2, %1, %3\n"
- "2: scw %2, [%6 + $ta]\n"
- " beqz %2, 1b\n"
- "3:\n " __futex_atomic_ex_table("%7")
- :"+&r"(ret), "=&r"(val), "=&r"(tmp), "=&r"(flags)
- :"r"(oldval), "r"(newval), "r"(uaddr), "i"(-EFAULT)
- :"$ta", "memory");
- smp_mb();
-
- *uval = val;
- return ret;
-}
-
-static inline int
-arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
-{
- int oldval = 0, ret;
-
- if (!access_ok(uaddr, sizeof(u32)))
- return -EFAULT;
- switch (op) {
- case FUTEX_OP_SET:
- __futex_atomic_op("move %0, %3", ret, oldval, tmp, uaddr,
- oparg);
- break;
- case FUTEX_OP_ADD:
- __futex_atomic_op("add %0, %1, %3", ret, oldval, tmp, uaddr,
- oparg);
- break;
- case FUTEX_OP_OR:
- __futex_atomic_op("or %0, %1, %3", ret, oldval, tmp, uaddr,
- oparg);
- break;
- case FUTEX_OP_ANDN:
- __futex_atomic_op("and %0, %1, %3", ret, oldval, tmp, uaddr,
- ~oparg);
- break;
- case FUTEX_OP_XOR:
- __futex_atomic_op("xor %0, %1, %3", ret, oldval, tmp, uaddr,
- oparg);
- break;
- default:
- ret = -ENOSYS;
- }
-
- if (!ret)
- *oval = oldval;
-
- return ret;
-}
-#endif /* __NDS32_FUTEX_H__ */
diff --git a/arch/nds32/include/asm/highmem.h b/arch/nds32/include/asm/highmem.h
deleted file mode 100644
index 16159a8716f2..000000000000
--- a/arch/nds32/include/asm/highmem.h
+++ /dev/null
@@ -1,65 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#ifndef _ASM_HIGHMEM_H
-#define _ASM_HIGHMEM_H
-
-#include <asm/proc-fns.h>
-#include <asm/fixmap.h>
-
-/*
- * Right now we initialize only a single pte table. It can be extended
- * easily, subsequent pte tables have to be allocated in one physical
- * chunk of RAM.
- */
-/*
- * Ordering is (from lower to higher memory addresses):
- *
- * high_memory
- * Persistent kmap area
- * PKMAP_BASE
- * fixed_addresses
- * FIXADDR_START
- * FIXADDR_TOP
- * Vmalloc area
- * VMALLOC_START
- * VMALLOC_END
- */
-#define PKMAP_BASE ((FIXADDR_START - PGDIR_SIZE) & (PGDIR_MASK))
-#define LAST_PKMAP PTRS_PER_PTE
-#define LAST_PKMAP_MASK (LAST_PKMAP - 1)
-#define PKMAP_NR(virt) (((virt) - (PKMAP_BASE)) >> PAGE_SHIFT)
-#define PKMAP_ADDR(nr) (PKMAP_BASE + ((nr) << PAGE_SHIFT))
-
-static inline void flush_cache_kmaps(void)
-{
- cpu_dcache_wbinval_all();
-}
-
-/* declarations for highmem.c */
-extern unsigned long highstart_pfn, highend_pfn;
-
-extern pte_t *pkmap_page_table;
-
-extern void kmap_init(void);
-
-/*
- * FIXME: The below looks broken vs. a kmap_atomic() in task context which
- * is interupted and another kmap_atomic() happens in interrupt context.
- * But what do I know about nds32. -- tglx
- */
-#define arch_kmap_local_post_map(vaddr, pteval) \
- do { \
- __nds32__tlbop_inv(vaddr); \
- __nds32__mtsr_dsb(vaddr, NDS32_SR_TLB_VPN); \
- __nds32__tlbop_rwr(pteval); \
- __nds32__isb(); \
- } while (0)
-
-#define arch_kmap_local_pre_unmap(vaddr) \
- do { \
- __nds32__tlbop_inv(vaddr); \
- __nds32__isb(); \
- } while (0)
-
-#endif
diff --git a/arch/nds32/include/asm/io.h b/arch/nds32/include/asm/io.h
deleted file mode 100644
index e57378d04006..000000000000
--- a/arch/nds32/include/asm/io.h
+++ /dev/null
@@ -1,84 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#ifndef __ASM_NDS32_IO_H
-#define __ASM_NDS32_IO_H
-
-#include <linux/types.h>
-
-#define __raw_writeb __raw_writeb
-static inline void __raw_writeb(u8 val, volatile void __iomem *addr)
-{
- asm volatile("sbi %0, [%1]" : : "r" (val), "r" (addr));
-}
-
-#define __raw_writew __raw_writew
-static inline void __raw_writew(u16 val, volatile void __iomem *addr)
-{
- asm volatile("shi %0, [%1]" : : "r" (val), "r" (addr));
-}
-
-#define __raw_writel __raw_writel
-static inline void __raw_writel(u32 val, volatile void __iomem *addr)
-{
- asm volatile("swi %0, [%1]" : : "r" (val), "r" (addr));
-}
-
-#define __raw_readb __raw_readb
-static inline u8 __raw_readb(const volatile void __iomem *addr)
-{
- u8 val;
-
- asm volatile("lbi %0, [%1]" : "=r" (val) : "r" (addr));
- return val;
-}
-
-#define __raw_readw __raw_readw
-static inline u16 __raw_readw(const volatile void __iomem *addr)
-{
- u16 val;
-
- asm volatile("lhi %0, [%1]" : "=r" (val) : "r" (addr));
- return val;
-}
-
-#define __raw_readl __raw_readl
-static inline u32 __raw_readl(const volatile void __iomem *addr)
-{
- u32 val;
-
- asm volatile("lwi %0, [%1]" : "=r" (val) : "r" (addr));
- return val;
-}
-
-#define __iormb() rmb()
-#define __iowmb() wmb()
-
-/*
- * {read,write}{b,w,l,q}_relaxed() are like the regular version, but
- * are not guaranteed to provide ordering against spinlocks or memory
- * accesses.
- */
-
-#define readb_relaxed(c) ({ u8 __v = __raw_readb(c); __v; })
-#define readw_relaxed(c) ({ u16 __v = le16_to_cpu((__force __le16)__raw_readw(c)); __v; })
-#define readl_relaxed(c) ({ u32 __v = le32_to_cpu((__force __le32)__raw_readl(c)); __v; })
-#define writeb_relaxed(v,c) ((void)__raw_writeb((v),(c)))
-#define writew_relaxed(v,c) ((void)__raw_writew((__force u16)cpu_to_le16(v),(c)))
-#define writel_relaxed(v,c) ((void)__raw_writel((__force u32)cpu_to_le32(v),(c)))
-
-/*
- * {read,write}{b,w,l,q}() access little endian memory and return result in
- * native endianness.
- */
-#define readb(c) ({ u8 __v = readb_relaxed(c); __iormb(); __v; })
-#define readw(c) ({ u16 __v = readw_relaxed(c); __iormb(); __v; })
-#define readl(c) ({ u32 __v = readl_relaxed(c); __iormb(); __v; })
-
-#define writeb(v,c) ({ __iowmb(); writeb_relaxed((v),(c)); })
-#define writew(v,c) ({ __iowmb(); writew_relaxed((v),(c)); })
-#define writel(v,c) ({ __iowmb(); writel_relaxed((v),(c)); })
-
-#include <asm-generic/io.h>
-
-#endif /* __ASM_NDS32_IO_H */
diff --git a/arch/nds32/include/asm/irqflags.h b/arch/nds32/include/asm/irqflags.h
deleted file mode 100644
index 51ef800bb301..000000000000
--- a/arch/nds32/include/asm/irqflags.h
+++ /dev/null
@@ -1,41 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <asm/nds32.h>
-#include <nds32_intrinsic.h>
-
-#define arch_local_irq_disable() \
- GIE_DISABLE();
-
-#define arch_local_irq_enable() \
- GIE_ENABLE();
-static inline unsigned long arch_local_irq_save(void)
-{
- unsigned long flags;
- flags = __nds32__mfsr(NDS32_SR_PSW) & PSW_mskGIE;
- GIE_DISABLE();
- return flags;
-}
-
-static inline unsigned long arch_local_save_flags(void)
-{
- unsigned long flags;
- flags = __nds32__mfsr(NDS32_SR_PSW) & PSW_mskGIE;
- return flags;
-}
-
-static inline void arch_local_irq_restore(unsigned long flags)
-{
- if(flags)
- GIE_ENABLE();
-}
-
-static inline int arch_irqs_disabled_flags(unsigned long flags)
-{
- return !flags;
-}
-
-static inline int arch_irqs_disabled(void)
-{
- return arch_irqs_disabled_flags(arch_local_save_flags());
-}
diff --git a/arch/nds32/include/asm/l2_cache.h b/arch/nds32/include/asm/l2_cache.h
deleted file mode 100644
index 3ea48e19e6de..000000000000
--- a/arch/nds32/include/asm/l2_cache.h
+++ /dev/null
@@ -1,137 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#ifndef L2_CACHE_H
-#define L2_CACHE_H
-
-/* CCTL_CMD_OP */
-#define L2_CA_CONF_OFF 0x0
-#define L2_IF_CONF_OFF 0x4
-#define L2CC_SETUP_OFF 0x8
-#define L2CC_PROT_OFF 0xC
-#define L2CC_CTRL_OFF 0x10
-#define L2_INT_EN_OFF 0x20
-#define L2_STA_OFF 0x24
-#define RDERR_ADDR_OFF 0x28
-#define WRERR_ADDR_OFF 0x2c
-#define EVDPTERR_ADDR_OFF 0x30
-#define IMPL3ERR_ADDR_OFF 0x34
-#define L2_CNT0_CTRL_OFF 0x40
-#define L2_EVNT_CNT0_OFF 0x44
-#define L2_CNT1_CTRL_OFF 0x48
-#define L2_EVNT_CNT1_OFF 0x4c
-#define L2_CCTL_CMD_OFF 0x60
-#define L2_CCTL_STATUS_OFF 0x64
-#define L2_LINE_TAG_OFF 0x68
-#define L2_LINE_DPT_OFF 0x70
-
-#define CCTL_CMD_L2_IX_INVAL 0x0
-#define CCTL_CMD_L2_PA_INVAL 0x1
-#define CCTL_CMD_L2_IX_WB 0x2
-#define CCTL_CMD_L2_PA_WB 0x3
-#define CCTL_CMD_L2_PA_WBINVAL 0x5
-#define CCTL_CMD_L2_SYNC 0xa
-
-/* CCTL_CMD_TYPE */
-#define CCTL_SINGLE_CMD 0
-#define CCTL_BLOCK_CMD 0x10
-#define CCTL_ALL_CMD 0x10
-
-/******************************************************************************
- * L2_CA_CONF (Cache architecture configuration)
- *****************************************************************************/
-#define L2_CA_CONF_offL2SET 0
-#define L2_CA_CONF_offL2WAY 4
-#define L2_CA_CONF_offL2CLSZ 8
-#define L2_CA_CONF_offL2DW 11
-#define L2_CA_CONF_offL2PT 14
-#define L2_CA_CONF_offL2VER 16
-
-#define L2_CA_CONF_mskL2SET (0xFUL << L2_CA_CONF_offL2SET)
-#define L2_CA_CONF_mskL2WAY (0xFUL << L2_CA_CONF_offL2WAY)
-#define L2_CA_CONF_mskL2CLSZ (0x7UL << L2_CA_CONF_offL2CLSZ)
-#define L2_CA_CONF_mskL2DW (0x7UL << L2_CA_CONF_offL2DW)
-#define L2_CA_CONF_mskL2PT (0x3UL << L2_CA_CONF_offL2PT)
-#define L2_CA_CONF_mskL2VER (0xFFFFUL << L2_CA_CONF_offL2VER)
-
-/******************************************************************************
- * L2CC_SETUP (L2CC Setup register)
- *****************************************************************************/
-#define L2CC_SETUP_offPART 0
-#define L2CC_SETUP_mskPART (0x3UL << L2CC_SETUP_offPART)
-#define L2CC_SETUP_offDDLATC 4
-#define L2CC_SETUP_mskDDLATC (0x3UL << L2CC_SETUP_offDDLATC)
-#define L2CC_SETUP_offTDLATC 8
-#define L2CC_SETUP_mskTDLATC (0x3UL << L2CC_SETUP_offTDLATC)
-
-/******************************************************************************
- * L2CC_PROT (L2CC Protect register)
- *****************************************************************************/
-#define L2CC_PROT_offMRWEN 31
-#define L2CC_PROT_mskMRWEN (0x1UL << L2CC_PROT_offMRWEN)
-
-/******************************************************************************
- * L2_CCTL_STATUS_Mn (The L2CCTL command working status for Master n)
- *****************************************************************************/
-#define L2CC_CTRL_offEN 31
-#define L2CC_CTRL_mskEN (0x1UL << L2CC_CTRL_offEN)
-
-/******************************************************************************
- * L2_CCTL_STATUS_Mn (The L2CCTL command working status for Master n)
- *****************************************************************************/
-#define L2_CCTL_STATUS_offCMD_COMP 31
-#define L2_CCTL_STATUS_mskCMD_COMP (0x1 << L2_CCTL_STATUS_offCMD_COMP)
-
-extern void __iomem *atl2c_base;
-#include <linux/smp.h>
-#include <asm/io.h>
-#include <asm/bitfield.h>
-
-#define L2C_R_REG(offset) readl(atl2c_base + offset)
-#define L2C_W_REG(offset, value) writel(value, atl2c_base + offset)
-
-#define L2_CMD_RDY() \
- do{;}while((L2C_R_REG(L2_CCTL_STATUS_OFF) & L2_CCTL_STATUS_mskCMD_COMP) == 0)
-
-static inline unsigned long L2_CACHE_SET(void)
-{
- return 64 << ((L2C_R_REG(L2_CA_CONF_OFF) & L2_CA_CONF_mskL2SET) >>
- L2_CA_CONF_offL2SET);
-}
-
-static inline unsigned long L2_CACHE_WAY(void)
-{
- return 1 +
- ((L2C_R_REG(L2_CA_CONF_OFF) & L2_CA_CONF_mskL2WAY) >>
- L2_CA_CONF_offL2WAY);
-}
-
-static inline unsigned long L2_CACHE_LINE_SIZE(void)
-{
-
- return 4 << ((L2C_R_REG(L2_CA_CONF_OFF) & L2_CA_CONF_mskL2CLSZ) >>
- L2_CA_CONF_offL2CLSZ);
-}
-
-static inline unsigned long GET_L2CC_CTRL_CPU(unsigned long cpu)
-{
- if (cpu == smp_processor_id())
- return L2C_R_REG(L2CC_CTRL_OFF);
- return L2C_R_REG(L2CC_CTRL_OFF + (cpu << 8));
-}
-
-static inline void SET_L2CC_CTRL_CPU(unsigned long cpu, unsigned long val)
-{
- if (cpu == smp_processor_id())
- L2C_W_REG(L2CC_CTRL_OFF, val);
- else
- L2C_W_REG(L2CC_CTRL_OFF + (cpu << 8), val);
-}
-
-static inline unsigned long GET_L2CC_STATUS_CPU(unsigned long cpu)
-{
- if (cpu == smp_processor_id())
- return L2C_R_REG(L2_CCTL_STATUS_OFF);
- return L2C_R_REG(L2_CCTL_STATUS_OFF + (cpu << 8));
-}
-#endif
diff --git a/arch/nds32/include/asm/linkage.h b/arch/nds32/include/asm/linkage.h
deleted file mode 100644
index a696469abb70..000000000000
--- a/arch/nds32/include/asm/linkage.h
+++ /dev/null
@@ -1,11 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#ifndef __ASM_LINKAGE_H
-#define __ASM_LINKAGE_H
-
-/* This file is required by include/linux/linkage.h */
-#define __ALIGN .align 2
-#define __ALIGN_STR ".align 2"
-
-#endif
diff --git a/arch/nds32/include/asm/memory.h b/arch/nds32/include/asm/memory.h
deleted file mode 100644
index 62faafbc28e4..000000000000
--- a/arch/nds32/include/asm/memory.h
+++ /dev/null
@@ -1,91 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#ifndef __ASM_NDS32_MEMORY_H
-#define __ASM_NDS32_MEMORY_H
-
-#include <linux/compiler.h>
-#include <linux/sizes.h>
-
-#ifndef __ASSEMBLY__
-#include <asm/page.h>
-#endif
-
-#ifndef PHYS_OFFSET
-#define PHYS_OFFSET (0x0)
-#endif
-
-/*
- * TASK_SIZE - the maximum size of a user space task.
- * TASK_UNMAPPED_BASE - the lower boundary of the mmap VM area
- */
-#define TASK_SIZE ((CONFIG_PAGE_OFFSET) - (SZ_32M))
-#define TASK_UNMAPPED_BASE ALIGN(TASK_SIZE / 3, SZ_32M)
-#define PAGE_OFFSET (CONFIG_PAGE_OFFSET)
-
-/*
- * Physical vs virtual RAM address space conversion. These are
- * private definitions which should NOT be used outside memory.h
- * files. Use virt_to_phys/phys_to_virt/__pa/__va instead.
- */
-#ifndef __virt_to_phys
-#define __virt_to_phys(x) ((x) - PAGE_OFFSET + PHYS_OFFSET)
-#define __phys_to_virt(x) ((x) - PHYS_OFFSET + PAGE_OFFSET)
-#endif
-
-/*
- * The module space lives between the addresses given by TASK_SIZE
- * and PAGE_OFFSET - it must be within 32MB of the kernel text.
- */
-#define MODULES_END (PAGE_OFFSET)
-#define MODULES_VADDR (MODULES_END - SZ_32M)
-
-#if TASK_SIZE > MODULES_VADDR
-#error Top of user space clashes with start of module space
-#endif
-
-#ifndef __ASSEMBLY__
-
-/*
- * PFNs are used to describe any physical page; this means
- * PFN 0 == physical address 0.
- *
- * This is the PFN of the first RAM page in the kernel
- * direct-mapped view. We assume this is the first page
- * of RAM in the mem_map as well.
- */
-#define PHYS_PFN_OFFSET (PHYS_OFFSET >> PAGE_SHIFT)
-
-/*
- * Drivers should NOT use these either.
- */
-#define __pa(x) __virt_to_phys((unsigned long)(x))
-#define __va(x) ((void *)__phys_to_virt((unsigned long)(x)))
-
-/*
- * Conversion between a struct page and a physical address.
- *
- * Note: when converting an unknown physical address to a
- * struct page, the resulting pointer must be validated
- * using VALID_PAGE(). It must return an invalid struct page
- * for any physical address not corresponding to a system
- * RAM address.
- *
- * pfn_valid(pfn) indicates whether a PFN number is valid
- *
- * virt_to_page(k) convert a _valid_ virtual address to struct page *
- * virt_addr_valid(k) indicates whether a virtual address is valid
- */
-#define ARCH_PFN_OFFSET PHYS_PFN_OFFSET
-#define pfn_valid(pfn) ((pfn) >= PHYS_PFN_OFFSET && (pfn) < (PHYS_PFN_OFFSET + max_mapnr))
-
-#define virt_to_page(kaddr) (pfn_to_page(__pa(kaddr) >> PAGE_SHIFT))
-#define virt_addr_valid(kaddr) ((unsigned long)(kaddr) >= PAGE_OFFSET && (unsigned long)(kaddr) < (unsigned long)high_memory)
-
-#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT)
-
-#endif
-
-#include <asm-generic/memory_model.h>
-
-#endif
diff --git a/arch/nds32/include/asm/mmu.h b/arch/nds32/include/asm/mmu.h
deleted file mode 100644
index 89d63afee455..000000000000
--- a/arch/nds32/include/asm/mmu.h
+++ /dev/null
@@ -1,12 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#ifndef __NDS32_MMU_H
-#define __NDS32_MMU_H
-
-typedef struct {
- unsigned int id;
- void *vdso;
-} mm_context_t;
-
-#endif
diff --git a/arch/nds32/include/asm/mmu_context.h b/arch/nds32/include/asm/mmu_context.h
deleted file mode 100644
index c651bc8cacdc..000000000000
--- a/arch/nds32/include/asm/mmu_context.h
+++ /dev/null
@@ -1,62 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#ifndef __ASM_NDS32_MMU_CONTEXT_H
-#define __ASM_NDS32_MMU_CONTEXT_H
-
-#include <linux/spinlock.h>
-#include <asm/tlbflush.h>
-#include <asm/proc-fns.h>
-#include <asm-generic/mm_hooks.h>
-
-#define init_new_context init_new_context
-static inline int
-init_new_context(struct task_struct *tsk, struct mm_struct *mm)
-{
- mm->context.id = 0;
- return 0;
-}
-
-#define CID_BITS 9
-extern spinlock_t cid_lock;
-extern unsigned int cpu_last_cid;
-
-static inline void __new_context(struct mm_struct *mm)
-{
- unsigned int cid;
- unsigned long flags;
-
- spin_lock_irqsave(&cid_lock, flags);
- cid = cpu_last_cid;
- cpu_last_cid += 1 << TLB_MISC_offCID;
- if (cpu_last_cid == 0)
- cpu_last_cid = 1 << TLB_MISC_offCID << CID_BITS;
-
- if ((cid & TLB_MISC_mskCID) == 0)
- flush_tlb_all();
- spin_unlock_irqrestore(&cid_lock, flags);
-
- mm->context.id = cid;
-}
-
-static inline void check_context(struct mm_struct *mm)
-{
- if (unlikely
- ((mm->context.id ^ cpu_last_cid) >> TLB_MISC_offCID >> CID_BITS))
- __new_context(mm);
-}
-
-static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
- struct task_struct *tsk)
-{
- unsigned int cpu = smp_processor_id();
-
- if (!cpumask_test_and_set_cpu(cpu, mm_cpumask(next)) || prev != next) {
- check_context(next);
- cpu_switch_mm(next);
- }
-}
-
-#include <asm-generic/mmu_context.h>
-
-#endif
diff --git a/arch/nds32/include/asm/nds32.h b/arch/nds32/include/asm/nds32.h
deleted file mode 100644
index 4994f6a9e0a0..000000000000
--- a/arch/nds32/include/asm/nds32.h
+++ /dev/null
@@ -1,82 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#ifndef _ASM_NDS32_NDS32_H_
-#define _ASM_NDS32_NDS32_H_
-
-#include <asm/bitfield.h>
-#include <asm/cachectl.h>
-
-#ifndef __ASSEMBLY__
-#include <linux/init.h>
-#include <asm/barrier.h>
-#include <nds32_intrinsic.h>
-
-#ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
-#define FP_OFFSET (-3)
-#else
-#define FP_OFFSET (-2)
-#endif
-#define LP_OFFSET (-1)
-
-extern void __init early_trap_init(void);
-static inline void GIE_ENABLE(void)
-{
- mb();
- __nds32__gie_en();
-}
-
-static inline void GIE_DISABLE(void)
-{
- mb();
- __nds32__gie_dis();
-}
-
-static inline unsigned long CACHE_SET(unsigned char cache)
-{
-
- if (cache == ICACHE)
- return 64 << ((__nds32__mfsr(NDS32_SR_ICM_CFG) & ICM_CFG_mskISET) >>
- ICM_CFG_offISET);
- else
- return 64 << ((__nds32__mfsr(NDS32_SR_DCM_CFG) & DCM_CFG_mskDSET) >>
- DCM_CFG_offDSET);
-}
-
-static inline unsigned long CACHE_WAY(unsigned char cache)
-{
-
- if (cache == ICACHE)
- return 1 +
- ((__nds32__mfsr(NDS32_SR_ICM_CFG) & ICM_CFG_mskIWAY) >> ICM_CFG_offIWAY);
- else
- return 1 +
- ((__nds32__mfsr(NDS32_SR_DCM_CFG) & DCM_CFG_mskDWAY) >> DCM_CFG_offDWAY);
-}
-
-static inline unsigned long CACHE_LINE_SIZE(unsigned char cache)
-{
-
- if (cache == ICACHE)
- return 8 <<
- (((__nds32__mfsr(NDS32_SR_ICM_CFG) & ICM_CFG_mskISZ) >> ICM_CFG_offISZ) - 1);
- else
- return 8 <<
- (((__nds32__mfsr(NDS32_SR_DCM_CFG) & DCM_CFG_mskDSZ) >> DCM_CFG_offDSZ) - 1);
-}
-
-#endif /* __ASSEMBLY__ */
-
-#define IVB_BASE PHYS_OFFSET /* in user space for intr/exc/trap/break table base, 64KB aligned
- * We defined at the start of the physical memory */
-
-/* dispatched sub-entry exception handler numbering */
-#define RD_PROT 0 /* read protrection */
-#define WRT_PROT 1 /* write protection */
-#define NOEXEC 2 /* non executable */
-#define PAGE_MODIFY 3 /* page modified */
-#define ACC_BIT 4 /* access bit */
-#define RESVED_PTE 5 /* reserved PTE attribute */
-/* reserved 6 ~ 16 */
-
-#endif /* _ASM_NDS32_NDS32_H_ */
diff --git a/arch/nds32/include/asm/nds32_fpu_inst.h b/arch/nds32/include/asm/nds32_fpu_inst.h
deleted file mode 100644
index 1e4b86a90a48..000000000000
--- a/arch/nds32/include/asm/nds32_fpu_inst.h
+++ /dev/null
@@ -1,109 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/* Copyright (C) 2005-2018 Andes Technology Corporation */
-
-#ifndef __NDS32_FPU_INST_H
-#define __NDS32_FPU_INST_H
-
-#define cop0_op 0x35
-
-/*
- * COP0 field of opcodes.
- */
-#define fs1_op 0x0
-#define fs2_op 0x4
-#define fd1_op 0x8
-#define fd2_op 0xc
-
-/*
- * FS1 opcode.
- */
-enum fs1 {
- fadds_op, fsubs_op, fcpynss_op, fcpyss_op,
- fmadds_op, fmsubs_op, fcmovns_op, fcmovzs_op,
- fnmadds_op, fnmsubs_op,
- fmuls_op = 0xc, fdivs_op,
- fs1_f2op_op = 0xf
-};
-
-/*
- * FS1/F2OP opcode.
- */
-enum fs1_f2 {
- fs2d_op, fsqrts_op,
- fui2s_op = 0x8, fsi2s_op = 0xc,
- fs2ui_op = 0x10, fs2ui_z_op = 0x14,
- fs2si_op = 0x18, fs2si_z_op = 0x1c
-};
-
-/*
- * FS2 opcode.
- */
-enum fs2 {
- fcmpeqs_op, fcmpeqs_e_op, fcmplts_op, fcmplts_e_op,
- fcmples_op, fcmples_e_op, fcmpuns_op, fcmpuns_e_op
-};
-
-/*
- * FD1 opcode.
- */
-enum fd1 {
- faddd_op, fsubd_op, fcpynsd_op, fcpysd_op,
- fmaddd_op, fmsubd_op, fcmovnd_op, fcmovzd_op,
- fnmaddd_op, fnmsubd_op,
- fmuld_op = 0xc, fdivd_op, fd1_f2op_op = 0xf
-};
-
-/*
- * FD1/F2OP opcode.
- */
-enum fd1_f2 {
- fd2s_op, fsqrtd_op,
- fui2d_op = 0x8, fsi2d_op = 0xc,
- fd2ui_op = 0x10, fd2ui_z_op = 0x14,
- fd2si_op = 0x18, fd2si_z_op = 0x1c
-};
-
-/*
- * FD2 opcode.
- */
-enum fd2 {
- fcmpeqd_op, fcmpeqd_e_op, fcmpltd_op, fcmpltd_e_op,
- fcmpled_op, fcmpled_e_op, fcmpund_op, fcmpund_e_op
-};
-
-#define NDS32Insn(x) x
-
-#define I_OPCODE_off 25
-#define NDS32Insn_OPCODE(x) (NDS32Insn(x) >> I_OPCODE_off)
-
-#define I_OPCODE_offRt 20
-#define I_OPCODE_mskRt (0x1fUL << I_OPCODE_offRt)
-#define NDS32Insn_OPCODE_Rt(x) \
- ((NDS32Insn(x) & I_OPCODE_mskRt) >> I_OPCODE_offRt)
-
-#define I_OPCODE_offRa 15
-#define I_OPCODE_mskRa (0x1fUL << I_OPCODE_offRa)
-#define NDS32Insn_OPCODE_Ra(x) \
- ((NDS32Insn(x) & I_OPCODE_mskRa) >> I_OPCODE_offRa)
-
-#define I_OPCODE_offRb 10
-#define I_OPCODE_mskRb (0x1fUL << I_OPCODE_offRb)
-#define NDS32Insn_OPCODE_Rb(x) \
- ((NDS32Insn(x) & I_OPCODE_mskRb) >> I_OPCODE_offRb)
-
-#define I_OPCODE_offbit1014 10
-#define I_OPCODE_mskbit1014 (0x1fUL << I_OPCODE_offbit1014)
-#define NDS32Insn_OPCODE_BIT1014(x) \
- ((NDS32Insn(x) & I_OPCODE_mskbit1014) >> I_OPCODE_offbit1014)
-
-#define I_OPCODE_offbit69 6
-#define I_OPCODE_mskbit69 (0xfUL << I_OPCODE_offbit69)
-#define NDS32Insn_OPCODE_BIT69(x) \
- ((NDS32Insn(x) & I_OPCODE_mskbit69) >> I_OPCODE_offbit69)
-
-#define I_OPCODE_offCOP0 0
-#define I_OPCODE_mskCOP0 (0x3fUL << I_OPCODE_offCOP0)
-#define NDS32Insn_OPCODE_COP0(x) \
- ((NDS32Insn(x) & I_OPCODE_mskCOP0) >> I_OPCODE_offCOP0)
-
-#endif /* __NDS32_FPU_INST_H */
diff --git a/arch/nds32/include/asm/page.h b/arch/nds32/include/asm/page.h
deleted file mode 100644
index add33a7f02c8..000000000000
--- a/arch/nds32/include/asm/page.h
+++ /dev/null
@@ -1,64 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * Copyright (C) 2005-2017 Andes Technology Corporation
- */
-
-#ifndef _ASMNDS32_PAGE_H
-#define _ASMNDS32_PAGE_H
-
-#ifdef CONFIG_ANDES_PAGE_SIZE_4KB
-#define PAGE_SHIFT 12
-#endif
-#ifdef CONFIG_ANDES_PAGE_SIZE_8KB
-#define PAGE_SHIFT 13
-#endif
-#include <linux/const.h>
-#define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT)
-#define PAGE_MASK (~(PAGE_SIZE-1))
-
-#ifdef __KERNEL__
-
-#ifndef __ASSEMBLY__
-
-struct page;
-struct vm_area_struct;
-#ifdef CONFIG_CPU_CACHE_ALIASING
-extern void copy_user_highpage(struct page *to, struct page *from,
- unsigned long vaddr, struct vm_area_struct *vma);
-extern void clear_user_highpage(struct page *page, unsigned long vaddr);
-
-void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
- struct page *to);
-void clear_user_page(void *addr, unsigned long vaddr, struct page *page);
-#define __HAVE_ARCH_COPY_USER_HIGHPAGE
-#define clear_user_highpage clear_user_highpage
-#else
-#define clear_user_page(page, vaddr, pg) clear_page(page)
-#define copy_user_page(to, from, vaddr, pg) copy_page(to, from)
-#endif
-
-void clear_page(void *page);
-void copy_page(void *to, void *from);
-
-typedef unsigned long pte_t;
-typedef unsigned long pgd_t;
-typedef unsigned long pgprot_t;
-
-#define pte_val(x) (x)
-#define pgd_val(x) (x)
-#define pgprot_val(x) (x)
-
-#define __pte(x) (x)
-#define __pgd(x) (x)
-#define __pgprot(x) (x)
-
-typedef struct page *pgtable_t;
-
-#include <asm/memory.h>
-#include <asm-generic/getorder.h>
-
-#endif /* !__ASSEMBLY__ */
-
-#endif /* __KERNEL__ */
-
-#endif
diff --git a/arch/nds32/include/asm/perf_event.h b/arch/nds32/include/asm/perf_event.h
deleted file mode 100644
index fcdff02acc14..000000000000
--- a/arch/nds32/include/asm/perf_event.h
+++ /dev/null
@@ -1,16 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/* Copyright (C) 2008-2018 Andes Technology Corporation */
-
-#ifndef __ASM_PERF_EVENT_H
-#define __ASM_PERF_EVENT_H
-
-/*
- * This file is request by Perf,
- * please refer to tools/perf/design.txt for more details
- */
-struct pt_regs;
-unsigned long perf_instruction_pointer(struct pt_regs *regs);
-unsigned long perf_misc_flags(struct pt_regs *regs);
-#define perf_misc_flags(regs) perf_misc_flags(regs)
-
-#endif
diff --git a/arch/nds32/include/asm/pgalloc.h b/arch/nds32/include/asm/pgalloc.h
deleted file mode 100644
index a08e1ebca70e..000000000000
--- a/arch/nds32/include/asm/pgalloc.h
+++ /dev/null
@@ -1,62 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#ifndef _ASMNDS32_PGALLOC_H
-#define _ASMNDS32_PGALLOC_H
-
-#include <asm/processor.h>
-#include <asm/cacheflush.h>
-#include <asm/tlbflush.h>
-#include <asm/proc-fns.h>
-
-#define __HAVE_ARCH_PTE_ALLOC_ONE
-#include <asm-generic/pgalloc.h> /* for pte_{alloc,free}_one */
-
-extern pgd_t *pgd_alloc(struct mm_struct *mm);
-extern void pgd_free(struct mm_struct *mm, pgd_t * pgd);
-
-static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
-{
- pgtable_t pte;
-
- pte = __pte_alloc_one(mm, GFP_PGTABLE_USER);
- if (pte)
- cpu_dcache_wb_page((unsigned long)page_address(pte));
-
- return pte;
-}
-
-/*
- * Populate the pmdp entry with a pointer to the pte. This pmd is part
- * of the mm address space.
- *
- * Ensure that we always set both PMD entries.
- */
-static inline void
-pmd_populate_kernel(struct mm_struct *mm, pmd_t * pmdp, pte_t * ptep)
-{
- unsigned long pte_ptr = (unsigned long)ptep;
- unsigned long pmdval;
-
- BUG_ON(mm != &init_mm);
-
- /*
- * The pmd must be loaded with the physical
- * address of the PTE table
- */
- pmdval = __pa(pte_ptr) | _PAGE_KERNEL_TABLE;
- set_pmd(pmdp, __pmd(pmdval));
-}
-
-static inline void
-pmd_populate(struct mm_struct *mm, pmd_t * pmdp, pgtable_t ptep)
-{
- unsigned long pmdval;
-
- BUG_ON(mm == &init_mm);
-
- pmdval = page_to_pfn(ptep) << PAGE_SHIFT | _PAGE_USER_TABLE;
- set_pmd(pmdp, __pmd(pmdval));
-}
-
-#endif
diff --git a/arch/nds32/include/asm/pgtable.h b/arch/nds32/include/asm/pgtable.h
deleted file mode 100644
index 419f984eef70..000000000000
--- a/arch/nds32/include/asm/pgtable.h
+++ /dev/null
@@ -1,377 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#ifndef _ASMNDS32_PGTABLE_H
-#define _ASMNDS32_PGTABLE_H
-
-#include <asm-generic/pgtable-nopmd.h>
-#include <linux/sizes.h>
-
-#include <asm/memory.h>
-#include <asm/nds32.h>
-#ifndef __ASSEMBLY__
-#include <asm/fixmap.h>
-#include <nds32_intrinsic.h>
-#endif
-
-#ifdef CONFIG_ANDES_PAGE_SIZE_4KB
-#define PGDIR_SHIFT 22
-#define PTRS_PER_PGD 1024
-#define PTRS_PER_PTE 1024
-#endif
-
-#ifdef CONFIG_ANDES_PAGE_SIZE_8KB
-#define PGDIR_SHIFT 24
-#define PTRS_PER_PGD 256
-#define PTRS_PER_PTE 2048
-#endif
-
-#ifndef __ASSEMBLY__
-extern void __pte_error(const char *file, int line, unsigned long val);
-extern void __pgd_error(const char *file, int line, unsigned long val);
-
-#define pte_ERROR(pte) __pte_error(__FILE__, __LINE__, pte_val(pte))
-#define pgd_ERROR(pgd) __pgd_error(__FILE__, __LINE__, pgd_val(pgd))
-#endif /* !__ASSEMBLY__ */
-
-#define PMD_SIZE (1UL << PMD_SHIFT)
-#define PMD_MASK (~(PMD_SIZE-1))
-#define PGDIR_SIZE (1UL << PGDIR_SHIFT)
-#define PGDIR_MASK (~(PGDIR_SIZE-1))
-
-/*
- * This is the lowest virtual address we can permit any user space
- * mapping to be mapped at. This is particularly important for
- * non-high vector CPUs.
- */
-#define FIRST_USER_ADDRESS 0x8000
-
-#ifdef CONFIG_HIGHMEM
-#define CONSISTENT_BASE ((PKMAP_BASE) - (SZ_2M))
-#define CONSISTENT_END (PKMAP_BASE)
-#else
-#define CONSISTENT_BASE (FIXADDR_START - SZ_2M)
-#define CONSISTENT_END (FIXADDR_START)
-#endif
-#define CONSISTENT_OFFSET(x) (((unsigned long)(x) - CONSISTENT_BASE) >> PAGE_SHIFT)
-
-#ifdef CONFIG_HIGHMEM
-#ifndef __ASSEMBLY__
-#include <asm/highmem.h>
-#endif
-#endif
-
-#define VMALLOC_RESERVE SZ_128M
-#define VMALLOC_END (CONSISTENT_BASE - PAGE_SIZE)
-#define VMALLOC_START ((VMALLOC_END) - VMALLOC_RESERVE)
-#define VMALLOC_VMADDR(x) ((unsigned long)(x))
-#define MAXMEM __pa(VMALLOC_START)
-#define MAXMEM_PFN PFN_DOWN(MAXMEM)
-
-#define FIRST_USER_PGD_NR 0
-#define USER_PTRS_PER_PGD ((TASK_SIZE/PGDIR_SIZE) + FIRST_USER_PGD_NR)
-
-/* L2 PTE */
-#define _PAGE_V (1UL << 0)
-
-#define _PAGE_M_XKRW (0UL << 1)
-#define _PAGE_M_UR_KR (1UL << 1)
-#define _PAGE_M_UR_KRW (2UL << 1)
-#define _PAGE_M_URW_KRW (3UL << 1)
-#define _PAGE_M_KR (5UL << 1)
-#define _PAGE_M_KRW (7UL << 1)
-
-#define _PAGE_D (1UL << 4)
-#define _PAGE_E (1UL << 5)
-#define _PAGE_A (1UL << 6)
-#define _PAGE_G (1UL << 7)
-
-#define _PAGE_C_DEV (0UL << 8)
-#define _PAGE_C_DEV_WB (1UL << 8)
-#define _PAGE_C_MEM (2UL << 8)
-#define _PAGE_C_MEM_SHRD_WB (4UL << 8)
-#define _PAGE_C_MEM_SHRD_WT (5UL << 8)
-#define _PAGE_C_MEM_WB (6UL << 8)
-#define _PAGE_C_MEM_WT (7UL << 8)
-
-#define _PAGE_L (1UL << 11)
-
-#define _HAVE_PAGE_L (_PAGE_L)
-#define _PAGE_FILE (1UL << 1)
-#define _PAGE_YOUNG 0
-#define _PAGE_M_MASK _PAGE_M_KRW
-#define _PAGE_C_MASK _PAGE_C_MEM_WT
-
-#ifdef CONFIG_SMP
-#ifdef CONFIG_CPU_DCACHE_WRITETHROUGH
-#define _PAGE_CACHE_SHRD _PAGE_C_MEM_SHRD_WT
-#else
-#define _PAGE_CACHE_SHRD _PAGE_C_MEM_SHRD_WB
-#endif
-#else
-#ifdef CONFIG_CPU_DCACHE_WRITETHROUGH
-#define _PAGE_CACHE_SHRD _PAGE_C_MEM_WT
-#else
-#define _PAGE_CACHE_SHRD _PAGE_C_MEM_WB
-#endif
-#endif
-
-#ifdef CONFIG_CPU_DCACHE_WRITETHROUGH
-#define _PAGE_CACHE _PAGE_C_MEM_WT
-#else
-#define _PAGE_CACHE _PAGE_C_MEM_WB
-#endif
-
-#define _PAGE_IOREMAP \
- (_PAGE_V | _PAGE_M_KRW | _PAGE_D | _PAGE_G | _PAGE_C_DEV)
-
-/*
- * + Level 1 descriptor (PMD)
- */
-#define PMD_TYPE_TABLE 0
-
-#ifndef __ASSEMBLY__
-
-#define _PAGE_USER_TABLE PMD_TYPE_TABLE
-#define _PAGE_KERNEL_TABLE PMD_TYPE_TABLE
-
-#define PAGE_EXEC __pgprot(_PAGE_V | _PAGE_M_XKRW | _PAGE_E)
-#define PAGE_NONE __pgprot(_PAGE_V | _PAGE_M_KRW | _PAGE_A)
-#define PAGE_READ __pgprot(_PAGE_V | _PAGE_M_UR_KR)
-#define PAGE_RDWR __pgprot(_PAGE_V | _PAGE_M_URW_KRW | _PAGE_D)
-#define PAGE_COPY __pgprot(_PAGE_V | _PAGE_M_UR_KR)
-
-#define PAGE_UXKRWX_V1 __pgprot(_PAGE_V | _PAGE_M_KRW | _PAGE_D | _PAGE_E | _PAGE_G | _PAGE_CACHE_SHRD)
-#define PAGE_UXKRWX_V2 __pgprot(_PAGE_V | _PAGE_M_XKRW | _PAGE_D | _PAGE_E | _PAGE_G | _PAGE_CACHE_SHRD)
-#define PAGE_URXKRWX_V2 __pgprot(_PAGE_V | _PAGE_M_UR_KRW | _PAGE_D | _PAGE_E | _PAGE_G | _PAGE_CACHE_SHRD)
-#define PAGE_CACHE_L1 __pgprot(_HAVE_PAGE_L | _PAGE_V | _PAGE_M_KRW | _PAGE_D | _PAGE_E | _PAGE_G | _PAGE_CACHE)
-#define PAGE_MEMORY __pgprot(_HAVE_PAGE_L | _PAGE_V | _PAGE_M_KRW | _PAGE_D | _PAGE_E | _PAGE_G | _PAGE_CACHE_SHRD)
-#define PAGE_KERNEL __pgprot(_PAGE_V | _PAGE_M_KRW | _PAGE_D | _PAGE_E | _PAGE_G | _PAGE_CACHE_SHRD)
-#define PAGE_SHARED __pgprot(_PAGE_V | _PAGE_M_URW_KRW | _PAGE_D | _PAGE_CACHE_SHRD)
-#define PAGE_DEVICE __pgprot(_PAGE_V | _PAGE_M_KRW | _PAGE_D | _PAGE_G | _PAGE_C_DEV)
-#endif /* __ASSEMBLY__ */
-
-/* xwr */
-#define __P000 (PAGE_NONE | _PAGE_CACHE_SHRD)
-#define __P001 (PAGE_READ | _PAGE_CACHE_SHRD)
-#define __P010 (PAGE_COPY | _PAGE_CACHE_SHRD)
-#define __P011 (PAGE_COPY | _PAGE_CACHE_SHRD)
-#define __P100 (PAGE_EXEC | _PAGE_CACHE_SHRD)
-#define __P101 (PAGE_READ | _PAGE_E | _PAGE_CACHE_SHRD)
-#define __P110 (PAGE_COPY | _PAGE_E | _PAGE_CACHE_SHRD)
-#define __P111 (PAGE_COPY | _PAGE_E | _PAGE_CACHE_SHRD)
-
-#define __S000 (PAGE_NONE | _PAGE_CACHE_SHRD)
-#define __S001 (PAGE_READ | _PAGE_CACHE_SHRD)
-#define __S010 (PAGE_RDWR | _PAGE_CACHE_SHRD)
-#define __S011 (PAGE_RDWR | _PAGE_CACHE_SHRD)
-#define __S100 (PAGE_EXEC | _PAGE_CACHE_SHRD)
-#define __S101 (PAGE_READ | _PAGE_E | _PAGE_CACHE_SHRD)
-#define __S110 (PAGE_RDWR | _PAGE_E | _PAGE_CACHE_SHRD)
-#define __S111 (PAGE_RDWR | _PAGE_E | _PAGE_CACHE_SHRD)
-
-#ifndef __ASSEMBLY__
-/*
- * ZERO_PAGE is a global shared page that is always zero: used
- * for zero-mapped memory areas etc..
- */
-extern struct page *empty_zero_page;
-extern void paging_init(void);
-#define ZERO_PAGE(vaddr) (empty_zero_page)
-
-#define pte_pfn(pte) (pte_val(pte) >> PAGE_SHIFT)
-#define pfn_pte(pfn,prot) (__pte(((pfn) << PAGE_SHIFT) | pgprot_val(prot)))
-
-#define pte_none(pte) !(pte_val(pte))
-#define pte_clear(mm,addr,ptep) set_pte_at((mm),(addr),(ptep), __pte(0))
-#define pte_page(pte) (pfn_to_page(pte_pfn(pte)))
-
-static unsigned long pmd_page_vaddr(pmd_t pmd)
-{
- return ((unsigned long) __va(pmd_val(pmd) & PAGE_MASK));
-}
-
-#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
-/*
- * Set a level 1 translation table entry, and clean it out of
- * any caches such that the MMUs can load it correctly.
- */
-static inline void set_pmd(pmd_t * pmdp, pmd_t pmd)
-{
-
- *pmdp = pmd;
-#if !defined(CONFIG_CPU_DCACHE_DISABLE) && !defined(CONFIG_CPU_DCACHE_WRITETHROUGH)
- __asm__ volatile ("\n\tcctl %0, L1D_VA_WB"::"r" (pmdp):"memory");
- __nds32__msync_all();
- __nds32__dsb();
-#endif
-}
-
-/*
- * Set a PTE and flush it out
- */
-static inline void set_pte(pte_t * ptep, pte_t pte)
-{
-
- *ptep = pte;
-#if !defined(CONFIG_CPU_DCACHE_DISABLE) && !defined(CONFIG_CPU_DCACHE_WRITETHROUGH)
- __asm__ volatile ("\n\tcctl %0, L1D_VA_WB"::"r" (ptep):"memory");
- __nds32__msync_all();
- __nds32__dsb();
-#endif
-}
-
-/*
- * The following only work if pte_present() is true.
- * Undefined behaviour if not..
- */
-
-/*
- * pte_write: this page is writeable for user mode
- * pte_read: this page is readable for user mode
- * pte_kernel_write: this page is writeable for kernel mode
- *
- * We don't have pte_kernel_read because kernel always can read.
- *
- * */
-
-#define pte_present(pte) (pte_val(pte) & _PAGE_V)
-#define pte_write(pte) ((pte_val(pte) & _PAGE_M_MASK) == _PAGE_M_URW_KRW)
-#define pte_read(pte) (((pte_val(pte) & _PAGE_M_MASK) == _PAGE_M_UR_KR) || \
- ((pte_val(pte) & _PAGE_M_MASK) == _PAGE_M_UR_KRW) || \
- ((pte_val(pte) & _PAGE_M_MASK) == _PAGE_M_URW_KRW))
-#define pte_kernel_write(pte) (((pte_val(pte) & _PAGE_M_MASK) == _PAGE_M_URW_KRW) || \
- ((pte_val(pte) & _PAGE_M_MASK) == _PAGE_M_UR_KRW) || \
- ((pte_val(pte) & _PAGE_M_MASK) == _PAGE_M_KRW) || \
- (((pte_val(pte) & _PAGE_M_MASK) == _PAGE_M_XKRW) && pte_exec(pte)))
-#define pte_exec(pte) (pte_val(pte) & _PAGE_E)
-#define pte_dirty(pte) (pte_val(pte) & _PAGE_D)
-#define pte_young(pte) (pte_val(pte) & _PAGE_YOUNG)
-
-/*
- * The following only works if pte_present() is not true.
- */
-#define pte_file(pte) (pte_val(pte) & _PAGE_FILE)
-#define pte_to_pgoff(x) (pte_val(x) >> 2)
-#define pgoff_to_pte(x) __pte(((x) << 2) | _PAGE_FILE)
-
-#define PTE_FILE_MAX_BITS 29
-
-#define PTE_BIT_FUNC(fn,op) \
-static inline pte_t pte_##fn(pte_t pte) { pte_val(pte) op; return pte; }
-
-static inline pte_t pte_wrprotect(pte_t pte)
-{
- pte_val(pte) = pte_val(pte) & ~_PAGE_M_MASK;
- pte_val(pte) = pte_val(pte) | _PAGE_M_UR_KR;
- return pte;
-}
-
-static inline pte_t pte_mkwrite(pte_t pte)
-{
- pte_val(pte) = pte_val(pte) & ~_PAGE_M_MASK;
- pte_val(pte) = pte_val(pte) | _PAGE_M_URW_KRW;
- return pte;
-}
-
-PTE_BIT_FUNC(exprotect, &=~_PAGE_E);
-PTE_BIT_FUNC(mkexec, |=_PAGE_E);
-PTE_BIT_FUNC(mkclean, &=~_PAGE_D);
-PTE_BIT_FUNC(mkdirty, |=_PAGE_D);
-PTE_BIT_FUNC(mkold, &=~_PAGE_YOUNG);
-PTE_BIT_FUNC(mkyoung, |=_PAGE_YOUNG);
-
-/*
- * Mark the prot value as uncacheable and unbufferable.
- */
-#define pgprot_noncached(prot) __pgprot((pgprot_val(prot)&~_PAGE_C_MASK) | _PAGE_C_DEV)
-#define pgprot_writecombine(prot) __pgprot((pgprot_val(prot)&~_PAGE_C_MASK) | _PAGE_C_DEV_WB)
-
-#define pmd_none(pmd) (pmd_val(pmd)&0x1)
-#define pmd_present(pmd) (!pmd_none(pmd))
-#define pmd_bad(pmd) pmd_none(pmd)
-
-#define copy_pmd(pmdpd,pmdps) set_pmd((pmdpd), *(pmdps))
-#define pmd_clear(pmdp) set_pmd((pmdp), __pmd(1))
-
-static inline pmd_t __mk_pmd(pte_t * ptep, unsigned long prot)
-{
- unsigned long ptr = (unsigned long)ptep;
- pmd_t pmd;
-
- /*
- * The pmd must be loaded with the physical
- * address of the PTE table
- */
-
- pmd_val(pmd) = __virt_to_phys(ptr) | prot;
- return pmd;
-}
-
-#define pmd_page(pmd) virt_to_page(__va(pmd_val(pmd)))
-
-/*
- * Permanent address of a page. We never have highmem, so this is trivial.
- */
-#define pages_to_mb(x) ((x) >> (20 - PAGE_SHIFT))
-
-/*
- * Conversion functions: convert a page and protection to a page entry,
- * and a page entry and page directory to the page they refer to.
- */
-#define mk_pte(page,prot) pfn_pte(page_to_pfn(page),prot)
-
-/*
- * The "pgd_xxx()" functions here are trivial for a folded two-level
- * setup: the pgd is never bad, and a pmd always exists (as it's folded
- * into the pgd entry)
- */
-#define pgd_none(pgd) (0)
-#define pgd_bad(pgd) (0)
-#define pgd_present(pgd) (1)
-#define pgd_clear(pgdp) do { } while (0)
-
-#define page_pte_prot(page,prot) mk_pte(page, prot)
-#define page_pte(page) mk_pte(page, __pgprot(0))
-/*
- * L1PTE = $mr1 + ((virt >> PMD_SHIFT) << 2);
- * L2PTE = (((virt >> PAGE_SHIFT) & (PTRS_PER_PTE -1 )) << 2);
- * PPN = (phys & 0xfffff000);
- *
-*/
-
-static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
-{
- const unsigned long mask = 0xfff;
- pte_val(pte) = (pte_val(pte) & ~mask) | (pgprot_val(newprot) & mask);
- return pte;
-}
-
-extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
-
-/* Encode and decode a swap entry.
- *
- * We support up to 32GB of swap on 4k machines
- */
-#define __swp_type(x) (((x).val >> 2) & 0x7f)
-#define __swp_offset(x) ((x).val >> 9)
-#define __swp_entry(type,offset) ((swp_entry_t) { ((type) << 2) | ((offset) << 9) })
-#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) })
-#define __swp_entry_to_pte(swp) ((pte_t) { (swp).val })
-
-/* Needs to be defined here and not in linux/mm.h, as it is arch dependent */
-#define kern_addr_valid(addr) (1)
-
-/*
- * We provide our own arch_get_unmapped_area to cope with VIPT caches.
- */
-#define HAVE_ARCH_UNMAPPED_AREA
-
-/*
- * remap a physical address `phys' of size `size' with page protection `prot'
- * into virtual address `from'
- */
-
-#endif /* !__ASSEMBLY__ */
-
-#endif /* _ASMNDS32_PGTABLE_H */
diff --git a/arch/nds32/include/asm/pmu.h b/arch/nds32/include/asm/pmu.h
deleted file mode 100644
index e1ac0b0b8bcf..000000000000
--- a/arch/nds32/include/asm/pmu.h
+++ /dev/null
@@ -1,386 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/* Copyright (C) 2008-2018 Andes Technology Corporation */
-
-#ifndef __ASM_PMU_H
-#define __ASM_PMU_H
-
-#include <linux/interrupt.h>
-#include <linux/perf_event.h>
-#include <asm/unistd.h>
-#include <asm/bitfield.h>
-
-/* Has special meaning for perf core implementation */
-#define HW_OP_UNSUPPORTED 0x0
-#define C(_x) PERF_COUNT_HW_CACHE_##_x
-#define CACHE_OP_UNSUPPORTED 0x0
-
-/* Enough for both software and hardware defined events */
-#define SOFTWARE_EVENT_MASK 0xFF
-
-#define PFM_OFFSET_MAGIC_0 2 /* DO NOT START FROM 0 */
-#define PFM_OFFSET_MAGIC_1 (PFM_OFFSET_MAGIC_0 + 36)
-#define PFM_OFFSET_MAGIC_2 (PFM_OFFSET_MAGIC_1 + 36)
-
-enum { PFMC0, PFMC1, PFMC2, MAX_COUNTERS };
-
-u32 PFM_CTL_OVF[3] = { PFM_CTL_mskOVF0, PFM_CTL_mskOVF1,
- PFM_CTL_mskOVF2 };
-u32 PFM_CTL_EN[3] = { PFM_CTL_mskEN0, PFM_CTL_mskEN1,
- PFM_CTL_mskEN2 };
-u32 PFM_CTL_OFFSEL[3] = { PFM_CTL_offSEL0, PFM_CTL_offSEL1,
- PFM_CTL_offSEL2 };
-u32 PFM_CTL_IE[3] = { PFM_CTL_mskIE0, PFM_CTL_mskIE1, PFM_CTL_mskIE2 };
-u32 PFM_CTL_KS[3] = { PFM_CTL_mskKS0, PFM_CTL_mskKS1, PFM_CTL_mskKS2 };
-u32 PFM_CTL_KU[3] = { PFM_CTL_mskKU0, PFM_CTL_mskKU1, PFM_CTL_mskKU2 };
-u32 PFM_CTL_SEL[3] = { PFM_CTL_mskSEL0, PFM_CTL_mskSEL1, PFM_CTL_mskSEL2 };
-/*
- * Perf Events' indices
- */
-#define NDS32_IDX_CYCLE_COUNTER 0
-#define NDS32_IDX_COUNTER0 1
-#define NDS32_IDX_COUNTER1 2
-
-/* The events for a given PMU register set. */
-struct pmu_hw_events {
- /*
- * The events that are active on the PMU for the given index.
- */
- struct perf_event *events[MAX_COUNTERS];
-
- /*
- * A 1 bit for an index indicates that the counter is being used for
- * an event. A 0 means that the counter can be used.
- */
- unsigned long used_mask[BITS_TO_LONGS(MAX_COUNTERS)];
-
- /*
- * Hardware lock to serialize accesses to PMU registers. Needed for the
- * read/modify/write sequences.
- */
- raw_spinlock_t pmu_lock;
-};
-
-struct nds32_pmu {
- struct pmu pmu;
- cpumask_t active_irqs;
- char *name;
- irqreturn_t (*handle_irq)(int irq_num, void *dev);
- void (*enable)(struct perf_event *event);
- void (*disable)(struct perf_event *event);
- int (*get_event_idx)(struct pmu_hw_events *hw_events,
- struct perf_event *event);
- int (*set_event_filter)(struct hw_perf_event *evt,
- struct perf_event_attr *attr);
- u32 (*read_counter)(struct perf_event *event);
- void (*write_counter)(struct perf_event *event, u32 val);
- void (*start)(struct nds32_pmu *nds32_pmu);
- void (*stop)(struct nds32_pmu *nds32_pmu);
- void (*reset)(void *data);
- int (*request_irq)(struct nds32_pmu *nds32_pmu, irq_handler_t handler);
- void (*free_irq)(struct nds32_pmu *nds32_pmu);
- int (*map_event)(struct perf_event *event);
- int num_events;
- atomic_t active_events;
- u64 max_period;
- struct platform_device *plat_device;
- struct pmu_hw_events *(*get_hw_events)(void);
-};
-
-#define to_nds32_pmu(p) (container_of(p, struct nds32_pmu, pmu))
-
-int nds32_pmu_register(struct nds32_pmu *nds32_pmu, int type);
-
-u64 nds32_pmu_event_update(struct perf_event *event);
-
-int nds32_pmu_event_set_period(struct perf_event *event);
-
-/*
- * Common NDS32 SPAv3 event types
- *
- * Note: An implementation may not be able to count all of these events
- * but the encodings are considered to be `reserved' in the case that
- * they are not available.
- *
- * SEL_TOTAL_CYCLES will add an offset is due to ZERO is defined as
- * NOT_SUPPORTED EVENT mapping in generic perf code.
- * You will need to deal it in the event writing implementation.
- */
-enum spav3_counter_0_perf_types {
- SPAV3_0_SEL_BASE = -1 + PFM_OFFSET_MAGIC_0, /* counting symbol */
- SPAV3_0_SEL_TOTAL_CYCLES = 0 + PFM_OFFSET_MAGIC_0,
- SPAV3_0_SEL_COMPLETED_INSTRUCTION = 1 + PFM_OFFSET_MAGIC_0,
- SPAV3_0_SEL_LAST /* counting symbol */
-};
-
-enum spav3_counter_1_perf_types {
- SPAV3_1_SEL_BASE = -1 + PFM_OFFSET_MAGIC_1, /* counting symbol */
- SPAV3_1_SEL_TOTAL_CYCLES = 0 + PFM_OFFSET_MAGIC_1,
- SPAV3_1_SEL_COMPLETED_INSTRUCTION = 1 + PFM_OFFSET_MAGIC_1,
- SPAV3_1_SEL_CONDITIONAL_BRANCH = 2 + PFM_OFFSET_MAGIC_1,
- SPAV3_1_SEL_TAKEN_CONDITIONAL_BRANCH = 3 + PFM_OFFSET_MAGIC_1,
- SPAV3_1_SEL_PREFETCH_INSTRUCTION = 4 + PFM_OFFSET_MAGIC_1,
- SPAV3_1_SEL_RET_INST = 5 + PFM_OFFSET_MAGIC_1,
- SPAV3_1_SEL_JR_INST = 6 + PFM_OFFSET_MAGIC_1,
- SPAV3_1_SEL_JAL_JRAL_INST = 7 + PFM_OFFSET_MAGIC_1,
- SPAV3_1_SEL_NOP_INST = 8 + PFM_OFFSET_MAGIC_1,
- SPAV3_1_SEL_SCW_INST = 9 + PFM_OFFSET_MAGIC_1,
- SPAV3_1_SEL_ISB_DSB_INST = 10 + PFM_OFFSET_MAGIC_1,
- SPAV3_1_SEL_CCTL_INST = 11 + PFM_OFFSET_MAGIC_1,
- SPAV3_1_SEL_TAKEN_INTERRUPTS = 12 + PFM_OFFSET_MAGIC_1,
- SPAV3_1_SEL_LOADS_COMPLETED = 13 + PFM_OFFSET_MAGIC_1,
- SPAV3_1_SEL_UITLB_ACCESS = 14 + PFM_OFFSET_MAGIC_1,
- SPAV3_1_SEL_UDTLB_ACCESS = 15 + PFM_OFFSET_MAGIC_1,
- SPAV3_1_SEL_MTLB_ACCESS = 16 + PFM_OFFSET_MAGIC_1,
- SPAV3_1_SEL_CODE_CACHE_ACCESS = 17 + PFM_OFFSET_MAGIC_1,
- SPAV3_1_SEL_DATA_DEPENDENCY_STALL_CYCLES = 18 + PFM_OFFSET_MAGIC_1,
- SPAV3_1_SEL_DATA_CACHE_MISS_STALL_CYCLES = 19 + PFM_OFFSET_MAGIC_1,
- SPAV3_1_SEL_DATA_CACHE_ACCESS = 20 + PFM_OFFSET_MAGIC_1,
- SPAV3_1_SEL_DATA_CACHE_MISS = 21 + PFM_OFFSET_MAGIC_1,
- SPAV3_1_SEL_LOAD_DATA_CACHE_ACCESS = 22 + PFM_OFFSET_MAGIC_1,
- SPAV3_1_SEL_STORE_DATA_CACHE_ACCESS = 23 + PFM_OFFSET_MAGIC_1,
- SPAV3_1_SEL_ILM_ACCESS = 24 + PFM_OFFSET_MAGIC_1,
- SPAV3_1_SEL_LSU_BIU_CYCLES = 25 + PFM_OFFSET_MAGIC_1,
- SPAV3_1_SEL_HPTWK_BIU_CYCLES = 26 + PFM_OFFSET_MAGIC_1,
- SPAV3_1_SEL_DMA_BIU_CYCLES = 27 + PFM_OFFSET_MAGIC_1,
- SPAV3_1_SEL_CODE_CACHE_FILL_BIU_CYCLES = 28 + PFM_OFFSET_MAGIC_1,
- SPAV3_1_SEL_LEGAL_UNALIGN_DCACHE_ACCESS = 29 + PFM_OFFSET_MAGIC_1,
- SPAV3_1_SEL_PUSH25 = 30 + PFM_OFFSET_MAGIC_1,
- SPAV3_1_SEL_SYSCALLS_INST = 31 + PFM_OFFSET_MAGIC_1,
- SPAV3_1_SEL_LAST /* counting symbol */
-};
-
-enum spav3_counter_2_perf_types {
- SPAV3_2_SEL_BASE = -1 + PFM_OFFSET_MAGIC_2, /* counting symbol */
- SPAV3_2_SEL_TOTAL_CYCLES = 0 + PFM_OFFSET_MAGIC_2,
- SPAV3_2_SEL_COMPLETED_INSTRUCTION = 1 + PFM_OFFSET_MAGIC_2,
- SPAV3_2_SEL_CONDITIONAL_BRANCH_MISPREDICT = 2 + PFM_OFFSET_MAGIC_2,
- SPAV3_2_SEL_TAKEN_CONDITIONAL_BRANCH_MISPREDICT =
- 3 + PFM_OFFSET_MAGIC_2,
- SPAV3_2_SEL_PREFETCH_INSTRUCTION_CACHE_HIT = 4 + PFM_OFFSET_MAGIC_2,
- SPAV3_1_SEL_RET_MISPREDICT = 5 + PFM_OFFSET_MAGIC_2,
- SPAV3_1_SEL_IMMEDIATE_J_INST = 6 + PFM_OFFSET_MAGIC_2,
- SPAV3_1_SEL_MULTIPLY_INST = 7 + PFM_OFFSET_MAGIC_2,
- SPAV3_1_SEL_16_BIT_INST = 8 + PFM_OFFSET_MAGIC_2,
- SPAV3_1_SEL_FAILED_SCW_INST = 9 + PFM_OFFSET_MAGIC_2,
- SPAV3_1_SEL_LD_AFTER_ST_CONFLICT_REPLAYS = 10 + PFM_OFFSET_MAGIC_2,
- SPAV3_1_SEL_TAKEN_EXCEPTIONS = 12 + PFM_OFFSET_MAGIC_2,
- SPAV3_1_SEL_STORES_COMPLETED = 13 + PFM_OFFSET_MAGIC_2,
- SPAV3_2_SEL_UITLB_MISS = 14 + PFM_OFFSET_MAGIC_2,
- SPAV3_2_SEL_UDTLB_MISS = 15 + PFM_OFFSET_MAGIC_2,
- SPAV3_2_SEL_MTLB_MISS = 16 + PFM_OFFSET_MAGIC_2,
- SPAV3_2_SEL_CODE_CACHE_MISS = 17 + PFM_OFFSET_MAGIC_2,
- SPAV3_1_SEL_EMPTY_INST_QUEUE_STALL_CYCLES = 18 + PFM_OFFSET_MAGIC_2,
- SPAV3_1_SEL_DATA_WRITE_BACK = 19 + PFM_OFFSET_MAGIC_2,
- SPAV3_2_SEL_DATA_CACHE_MISS = 21 + PFM_OFFSET_MAGIC_2,
- SPAV3_2_SEL_LOAD_DATA_CACHE_MISS = 22 + PFM_OFFSET_MAGIC_2,
- SPAV3_2_SEL_STORE_DATA_CACHE_MISS = 23 + PFM_OFFSET_MAGIC_2,
- SPAV3_1_SEL_DLM_ACCESS = 24 + PFM_OFFSET_MAGIC_2,
- SPAV3_1_SEL_LSU_BIU_REQUEST = 25 + PFM_OFFSET_MAGIC_2,
- SPAV3_1_SEL_HPTWK_BIU_REQUEST = 26 + PFM_OFFSET_MAGIC_2,
- SPAV3_1_SEL_DMA_BIU_REQUEST = 27 + PFM_OFFSET_MAGIC_2,
- SPAV3_1_SEL_CODE_CACHE_FILL_BIU_REQUEST = 28 + PFM_OFFSET_MAGIC_2,
- SPAV3_1_SEL_EXTERNAL_EVENTS = 29 + PFM_OFFSET_MAGIC_2,
- SPAV3_1_SEL_POP25 = 30 + PFM_OFFSET_MAGIC_2,
- SPAV3_2_SEL_LAST /* counting symbol */
-};
-
-/* Get converted event counter index */
-static inline int get_converted_event_idx(unsigned long event)
-{
- int idx;
-
- if ((event) > SPAV3_0_SEL_BASE && event < SPAV3_0_SEL_LAST) {
- idx = 0;
- } else if ((event) > SPAV3_1_SEL_BASE && event < SPAV3_1_SEL_LAST) {
- idx = 1;
- } else if ((event) > SPAV3_2_SEL_BASE && event < SPAV3_2_SEL_LAST) {
- idx = 2;
- } else {
- pr_err("GET_CONVERTED_EVENT_IDX PFM counter range error\n");
- return -EPERM;
- }
-
- return idx;
-}
-
-/* Get converted hardware event number */
-static inline u32 get_converted_evet_hw_num(u32 event)
-{
- if (event > SPAV3_0_SEL_BASE && event < SPAV3_0_SEL_LAST)
- event -= PFM_OFFSET_MAGIC_0;
- else if (event > SPAV3_1_SEL_BASE && event < SPAV3_1_SEL_LAST)
- event -= PFM_OFFSET_MAGIC_1;
- else if (event > SPAV3_2_SEL_BASE && event < SPAV3_2_SEL_LAST)
- event -= PFM_OFFSET_MAGIC_2;
- else if (event != 0)
- pr_err("GET_CONVERTED_EVENT_HW_NUM PFM counter range error\n");
-
- return event;
-}
-
-/*
- * NDS32 HW events mapping
- *
- * The hardware events that we support. We do support cache operations but
- * we have harvard caches and no way to combine instruction and data
- * accesses/misses in hardware.
- */
-static const unsigned int nds32_pfm_perf_map[PERF_COUNT_HW_MAX] = {
- [PERF_COUNT_HW_CPU_CYCLES] = SPAV3_0_SEL_TOTAL_CYCLES,
- [PERF_COUNT_HW_INSTRUCTIONS] = SPAV3_1_SEL_COMPLETED_INSTRUCTION,
- [PERF_COUNT_HW_CACHE_REFERENCES] = SPAV3_1_SEL_DATA_CACHE_ACCESS,
- [PERF_COUNT_HW_CACHE_MISSES] = SPAV3_2_SEL_DATA_CACHE_MISS,
- [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = HW_OP_UNSUPPORTED,
- [PERF_COUNT_HW_BRANCH_MISSES] = HW_OP_UNSUPPORTED,
- [PERF_COUNT_HW_BUS_CYCLES] = HW_OP_UNSUPPORTED,
- [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = HW_OP_UNSUPPORTED,
- [PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = HW_OP_UNSUPPORTED,
- [PERF_COUNT_HW_REF_CPU_CYCLES] = HW_OP_UNSUPPORTED
-};
-
-static const unsigned int nds32_pfm_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
- [PERF_COUNT_HW_CACHE_OP_MAX]
- [PERF_COUNT_HW_CACHE_RESULT_MAX] = {
- [C(L1D)] = {
- [C(OP_READ)] = {
- [C(RESULT_ACCESS)] =
- SPAV3_1_SEL_LOAD_DATA_CACHE_ACCESS,
- [C(RESULT_MISS)] =
- SPAV3_2_SEL_LOAD_DATA_CACHE_MISS,
- },
- [C(OP_WRITE)] = {
- [C(RESULT_ACCESS)] =
- SPAV3_1_SEL_STORE_DATA_CACHE_ACCESS,
- [C(RESULT_MISS)] =
- SPAV3_2_SEL_STORE_DATA_CACHE_MISS,
- },
- [C(OP_PREFETCH)] = {
- [C(RESULT_ACCESS)] =
- CACHE_OP_UNSUPPORTED,
- [C(RESULT_MISS)] =
- CACHE_OP_UNSUPPORTED,
- },
- },
- [C(L1I)] = {
- [C(OP_READ)] = {
- [C(RESULT_ACCESS)] =
- SPAV3_1_SEL_CODE_CACHE_ACCESS,
- [C(RESULT_MISS)] =
- SPAV3_2_SEL_CODE_CACHE_MISS,
- },
- [C(OP_WRITE)] = {
- [C(RESULT_ACCESS)] =
- SPAV3_1_SEL_CODE_CACHE_ACCESS,
- [C(RESULT_MISS)] =
- SPAV3_2_SEL_CODE_CACHE_MISS,
- },
- [C(OP_PREFETCH)] = {
- [C(RESULT_ACCESS)] =
- CACHE_OP_UNSUPPORTED,
- [C(RESULT_MISS)] = CACHE_OP_UNSUPPORTED,
- },
- },
- /* TODO: L2CC */
- [C(LL)] = {
- [C(OP_READ)] = {
- [C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
- [C(RESULT_MISS)] = CACHE_OP_UNSUPPORTED,
- },
- [C(OP_WRITE)] = {
- [C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
- [C(RESULT_MISS)] = CACHE_OP_UNSUPPORTED,
- },
- [C(OP_PREFETCH)] = {
- [C(RESULT_ACCESS)] =
- CACHE_OP_UNSUPPORTED,
- [C(RESULT_MISS)] = CACHE_OP_UNSUPPORTED,
- },
- },
- /* NDS32 PMU does not support TLB read/write hit/miss,
- * However, it can count access/miss, which mixed with read and write.
- * Therefore, only READ counter will use it.
- * We do as possible as we can.
- */
- [C(DTLB)] = {
- [C(OP_READ)] = {
- [C(RESULT_ACCESS)] =
- SPAV3_1_SEL_UDTLB_ACCESS,
- [C(RESULT_MISS)] =
- SPAV3_2_SEL_UDTLB_MISS,
- },
- [C(OP_WRITE)] = {
- [C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
- [C(RESULT_MISS)] = CACHE_OP_UNSUPPORTED,
- },
- [C(OP_PREFETCH)] = {
- [C(RESULT_ACCESS)] =
- CACHE_OP_UNSUPPORTED,
- [C(RESULT_MISS)] =
- CACHE_OP_UNSUPPORTED,
- },
- },
- [C(ITLB)] = {
- [C(OP_READ)] = {
- [C(RESULT_ACCESS)] =
- SPAV3_1_SEL_UITLB_ACCESS,
- [C(RESULT_MISS)] =
- SPAV3_2_SEL_UITLB_MISS,
- },
- [C(OP_WRITE)] = {
- [C(RESULT_ACCESS)] =
- CACHE_OP_UNSUPPORTED,
- [C(RESULT_MISS)] =
- CACHE_OP_UNSUPPORTED,
- },
- [C(OP_PREFETCH)] = {
- [C(RESULT_ACCESS)] =
- CACHE_OP_UNSUPPORTED,
- [C(RESULT_MISS)] =
- CACHE_OP_UNSUPPORTED,
- },
- },
- [C(BPU)] = { /* What is BPU? */
- [C(OP_READ)] = {
- [C(RESULT_ACCESS)] =
- CACHE_OP_UNSUPPORTED,
- [C(RESULT_MISS)] =
- CACHE_OP_UNSUPPORTED,
- },
- [C(OP_WRITE)] = {
- [C(RESULT_ACCESS)] =
- CACHE_OP_UNSUPPORTED,
- [C(RESULT_MISS)] =
- CACHE_OP_UNSUPPORTED,
- },
- [C(OP_PREFETCH)] = {
- [C(RESULT_ACCESS)] =
- CACHE_OP_UNSUPPORTED,
- [C(RESULT_MISS)] =
- CACHE_OP_UNSUPPORTED,
- },
- },
- [C(NODE)] = { /* What is NODE? */
- [C(OP_READ)] = {
- [C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
- [C(RESULT_MISS)] = CACHE_OP_UNSUPPORTED,
- },
- [C(OP_WRITE)] = {
- [C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
- [C(RESULT_MISS)] = CACHE_OP_UNSUPPORTED,
- },
- [C(OP_PREFETCH)] = {
- [C(RESULT_ACCESS)] =
- CACHE_OP_UNSUPPORTED,
- [C(RESULT_MISS)] =
- CACHE_OP_UNSUPPORTED,
- },
- },
-};
-
-int nds32_pmu_map_event(struct perf_event *event,
- const unsigned int (*event_map)[PERF_COUNT_HW_MAX],
- const unsigned int (*cache_map)[PERF_COUNT_HW_CACHE_MAX]
- [PERF_COUNT_HW_CACHE_OP_MAX]
- [PERF_COUNT_HW_CACHE_RESULT_MAX], u32 raw_event_mask);
-
-#endif /* __ASM_PMU_H */
diff --git a/arch/nds32/include/asm/proc-fns.h b/arch/nds32/include/asm/proc-fns.h
deleted file mode 100644
index 27c617fa77af..000000000000
--- a/arch/nds32/include/asm/proc-fns.h
+++ /dev/null
@@ -1,44 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#ifndef __NDS32_PROCFNS_H__
-#define __NDS32_PROCFNS_H__
-
-#ifdef __KERNEL__
-#include <asm/page.h>
-
-struct mm_struct;
-struct vm_area_struct;
-extern void cpu_proc_init(void);
-extern void cpu_proc_fin(void);
-extern void cpu_do_idle(void);
-extern void cpu_reset(unsigned long reset);
-extern void cpu_switch_mm(struct mm_struct *mm);
-
-extern void cpu_dcache_inval_all(void);
-extern void cpu_dcache_wbinval_all(void);
-extern void cpu_dcache_inval_page(unsigned long page);
-extern void cpu_dcache_wb_page(unsigned long page);
-extern void cpu_dcache_wbinval_page(unsigned long page);
-extern void cpu_dcache_inval_range(unsigned long start, unsigned long end);
-extern void cpu_dcache_wb_range(unsigned long start, unsigned long end);
-extern void cpu_dcache_wbinval_range(unsigned long start, unsigned long end);
-
-extern void cpu_icache_inval_all(void);
-extern void cpu_icache_inval_page(unsigned long page);
-extern void cpu_icache_inval_range(unsigned long start, unsigned long end);
-
-extern void cpu_cache_wbinval_page(unsigned long page, int flushi);
-extern void cpu_cache_wbinval_range(unsigned long start,
- unsigned long end, int flushi);
-extern void cpu_cache_wbinval_range_check(struct vm_area_struct *vma,
- unsigned long start,
- unsigned long end, bool flushi,
- bool wbd);
-
-extern void cpu_dma_wb_range(unsigned long start, unsigned long end);
-extern void cpu_dma_inval_range(unsigned long start, unsigned long end);
-extern void cpu_dma_wbinval_range(unsigned long start, unsigned long end);
-
-#endif /* __KERNEL__ */
-#endif /* __NDS32_PROCFNS_H__ */
diff --git a/arch/nds32/include/asm/processor.h b/arch/nds32/include/asm/processor.h
deleted file mode 100644
index e6bfc74972bb..000000000000
--- a/arch/nds32/include/asm/processor.h
+++ /dev/null
@@ -1,104 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#ifndef __ASM_NDS32_PROCESSOR_H
-#define __ASM_NDS32_PROCESSOR_H
-
-#ifdef __KERNEL__
-
-#include <asm/ptrace.h>
-#include <asm/types.h>
-#include <asm/sigcontext.h>
-
-#define KERNEL_STACK_SIZE PAGE_SIZE
-#define STACK_TOP TASK_SIZE
-#define STACK_TOP_MAX TASK_SIZE
-
-struct cpu_context {
- unsigned long r6;
- unsigned long r7;
- unsigned long r8;
- unsigned long r9;
- unsigned long r10;
- unsigned long r11;
- unsigned long r12;
- unsigned long r13;
- unsigned long r14;
- unsigned long fp;
- unsigned long pc;
- unsigned long sp;
-};
-
-struct thread_struct {
- struct cpu_context cpu_context; /* cpu context */
- /* fault info */
- unsigned long address;
- unsigned long trap_no;
- unsigned long error_code;
-
- struct fpu_struct fpu;
-};
-
-#define INIT_THREAD { }
-
-#ifdef __NDS32_EB__
-#define PSW_DE PSW_mskBE
-#else
-#define PSW_DE 0x0
-#endif
-
-#ifdef CONFIG_WBNA
-#define PSW_valWBNA PSW_mskWBNA
-#else
-#define PSW_valWBNA 0x0
-#endif
-
-#ifdef CONFIG_HWZOL
-#define PSW_valINIT (PSW_CPL_ANY | PSW_mskAEN | PSW_valWBNA | PSW_mskDT | PSW_mskIT | PSW_DE | PSW_mskGIE)
-#else
-#define PSW_valINIT (PSW_CPL_ANY | PSW_valWBNA | PSW_mskDT | PSW_mskIT | PSW_DE | PSW_mskGIE)
-#endif
-
-#define start_thread(regs,pc,stack) \
-({ \
- memzero(regs, sizeof(struct pt_regs)); \
- forget_syscall(regs); \
- regs->ipsw = PSW_valINIT; \
- regs->ir0 = (PSW_CPL_ANY | PSW_valWBNA | PSW_mskDT | PSW_mskIT | PSW_DE | PSW_SYSTEM | PSW_INTL_1); \
- regs->ipc = pc; \
- regs->sp = stack; \
-})
-
-/* Forward declaration, a strange C thing */
-struct task_struct;
-
-/* Free all resources held by a thread. */
-#define release_thread(thread) do { } while(0)
-#if IS_ENABLED(CONFIG_FPU)
-#if !IS_ENABLED(CONFIG_UNLAZU_FPU)
-extern struct task_struct *last_task_used_math;
-#endif
-#endif
-
-/* Prepare to copy thread state - unlazy all lazy status */
-#define prepare_to_copy(tsk) do { } while (0)
-
-unsigned long __get_wchan(struct task_struct *p);
-
-#define cpu_relax() barrier()
-
-#define task_pt_regs(task) \
- ((struct pt_regs *) (task_stack_page(task) + THREAD_SIZE \
- - 8) - 1)
-
-/*
- * Create a new kernel thread
- */
-extern int kernel_thread(int (*fn) (void *), void *arg, unsigned long flags);
-
-#define KSTK_EIP(tsk) instruction_pointer(task_pt_regs(tsk))
-#define KSTK_ESP(tsk) user_stack_pointer(task_pt_regs(tsk))
-
-#endif
-
-#endif /* __ASM_NDS32_PROCESSOR_H */
diff --git a/arch/nds32/include/asm/ptrace.h b/arch/nds32/include/asm/ptrace.h
deleted file mode 100644
index 919ee223620c..000000000000
--- a/arch/nds32/include/asm/ptrace.h
+++ /dev/null
@@ -1,77 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#ifndef __ASM_NDS32_PTRACE_H
-#define __ASM_NDS32_PTRACE_H
-
-#include <uapi/asm/ptrace.h>
-
-/*
- * If pt_regs.syscallno == NO_SYSCALL, then the thread is not executing
- * a syscall -- i.e., its most recent entry into the kernel from
- * userspace was not via syscall, or otherwise a tracer cancelled the
- * syscall.
- *
- * This must have the value -1, for ABI compatibility with ptrace etc.
- */
-#define NO_SYSCALL (-1)
-#ifndef __ASSEMBLY__
-#include <linux/types.h>
-
-struct pt_regs {
- union {
- struct user_pt_regs user_regs;
- struct {
- long uregs[26];
- long fp;
- long gp;
- long lp;
- long sp;
- long ipc;
-#if defined(CONFIG_HWZOL)
- long lb;
- long le;
- long lc;
-#else
- long dummy[3];
-#endif
- long syscallno;
- };
- };
- long orig_r0;
- long ir0;
- long ipsw;
- long pipsw;
- long pipc;
- long pp0;
- long pp1;
- long fucop_ctl;
- long osp;
-};
-
-static inline bool in_syscall(struct pt_regs const *regs)
-{
- return regs->syscallno != NO_SYSCALL;
-}
-
-static inline void forget_syscall(struct pt_regs *regs)
-{
- regs->syscallno = NO_SYSCALL;
-}
-static inline unsigned long regs_return_value(struct pt_regs *regs)
-{
- return regs->uregs[0];
-}
-extern void show_regs(struct pt_regs *);
-/* Avoid circular header include via sched.h */
-struct task_struct;
-
-#define arch_has_single_step() (1)
-#define user_mode(regs) (((regs)->ipsw & PSW_mskPOM) == 0)
-#define interrupts_enabled(regs) (!!((regs)->ipsw & PSW_mskGIE))
-#define user_stack_pointer(regs) ((regs)->sp)
-#define instruction_pointer(regs) ((regs)->ipc)
-#define profile_pc(regs) instruction_pointer(regs)
-
-#endif /* __ASSEMBLY__ */
-#endif
diff --git a/arch/nds32/include/asm/sfp-machine.h b/arch/nds32/include/asm/sfp-machine.h
deleted file mode 100644
index b1a5caa332b5..000000000000
--- a/arch/nds32/include/asm/sfp-machine.h
+++ /dev/null
@@ -1,158 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/* Copyright (C) 2005-2018 Andes Technology Corporation */
-
-#include <asm/bitfield.h>
-
-#define _FP_W_TYPE_SIZE 32
-#define _FP_W_TYPE unsigned long
-#define _FP_WS_TYPE signed long
-#define _FP_I_TYPE long
-
-#define __ll_B ((UWtype) 1 << (W_TYPE_SIZE / 2))
-#define __ll_lowpart(t) ((UWtype) (t) & (__ll_B - 1))
-#define __ll_highpart(t) ((UWtype) (t) >> (W_TYPE_SIZE / 2))
-
-#define _FP_MUL_MEAT_S(R, X, Y) \
- _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S, R, X, Y, umul_ppmm)
-#define _FP_MUL_MEAT_D(R, X, Y) \
- _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_D, R, X, Y, umul_ppmm)
-#define _FP_MUL_MEAT_Q(R, X, Y) \
- _FP_MUL_MEAT_4_wide(_FP_WFRACBITS_Q, R, X, Y, umul_ppmm)
-
-#define _FP_MUL_MEAT_DW_S(R, X, Y) \
- _FP_MUL_MEAT_DW_1_wide(_FP_WFRACBITS_S, R, X, Y, umul_ppmm)
-#define _FP_MUL_MEAT_DW_D(R, X, Y) \
- _FP_MUL_MEAT_DW_2_wide(_FP_WFRACBITS_D, R, X, Y, umul_ppmm)
-
-#define _FP_DIV_MEAT_S(R, X, Y) _FP_DIV_MEAT_1_udiv_norm(S, R, X, Y)
-#define _FP_DIV_MEAT_D(R, X, Y) _FP_DIV_MEAT_2_udiv(D, R, X, Y)
-
-#define _FP_NANFRAC_S ((_FP_QNANBIT_S << 1) - 1)
-#define _FP_NANFRAC_D ((_FP_QNANBIT_D << 1) - 1), -1
-#define _FP_NANFRAC_Q ((_FP_QNANBIT_Q << 1) - 1), -1, -1, -1
-#define _FP_NANSIGN_S 0
-#define _FP_NANSIGN_D 0
-#define _FP_NANSIGN_Q 0
-
-#define _FP_KEEPNANFRACP 1
-#define _FP_QNANNEGATEDP 0
-
-#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \
-do { \
- if ((_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs) \
- && !(_FP_FRAC_HIGH_RAW_##fs(Y) & _FP_QNANBIT_##fs)) { \
- R##_s = Y##_s; \
- _FP_FRAC_COPY_##wc(R, Y); \
- } else { \
- R##_s = X##_s; \
- _FP_FRAC_COPY_##wc(R, X); \
- } \
- R##_c = FP_CLS_NAN; \
-} while (0)
-
-#define __FPU_FPCSR (current->thread.fpu.fpcsr)
-
-/* Obtain the current rounding mode. */
-#define FP_ROUNDMODE \
-({ \
- __FPU_FPCSR & FPCSR_mskRM; \
-})
-
-#define FP_RND_NEAREST 0
-#define FP_RND_PINF 1
-#define FP_RND_MINF 2
-#define FP_RND_ZERO 3
-
-#define FP_EX_INVALID FPCSR_mskIVO
-#define FP_EX_DIVZERO FPCSR_mskDBZ
-#define FP_EX_OVERFLOW FPCSR_mskOVF
-#define FP_EX_UNDERFLOW FPCSR_mskUDF
-#define FP_EX_INEXACT FPCSR_mskIEX
-
-#define SF_CEQ 2
-#define SF_CLT 1
-#define SF_CGT 3
-#define SF_CUN 4
-
-#include <asm/byteorder.h>
-
-#ifdef __BIG_ENDIAN__
-#define __BYTE_ORDER __BIG_ENDIAN
-#define __LITTLE_ENDIAN 0
-#else
-#define __BYTE_ORDER __LITTLE_ENDIAN
-#define __BIG_ENDIAN 0
-#endif
-
-#define abort() do { } while (0)
-#define umul_ppmm(w1, w0, u, v) \
-do { \
- UWtype __x0, __x1, __x2, __x3; \
- UHWtype __ul, __vl, __uh, __vh; \
- \
- __ul = __ll_lowpart(u); \
- __uh = __ll_highpart(u); \
- __vl = __ll_lowpart(v); \
- __vh = __ll_highpart(v); \
- \
- __x0 = (UWtype) __ul * __vl; \
- __x1 = (UWtype) __ul * __vh; \
- __x2 = (UWtype) __uh * __vl; \
- __x3 = (UWtype) __uh * __vh; \
- \
- __x1 += __ll_highpart(__x0); \
- __x1 += __x2; \
- if (__x1 < __x2) \
- __x3 += __ll_B; \
- \
- (w1) = __x3 + __ll_highpart(__x1); \
- (w0) = __ll_lowpart(__x1) * __ll_B + __ll_lowpart(__x0); \
-} while (0)
-
-#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
-do { \
- UWtype __x; \
- __x = (al) + (bl); \
- (sh) = (ah) + (bh) + (__x < (al)); \
- (sl) = __x; \
-} while (0)
-
-#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
-do { \
- UWtype __x; \
- __x = (al) - (bl); \
- (sh) = (ah) - (bh) - (__x > (al)); \
- (sl) = __x; \
-} while (0)
-
-#define udiv_qrnnd(q, r, n1, n0, d) \
-do { \
- UWtype __d1, __d0, __q1, __q0, __r1, __r0, __m; \
- __d1 = __ll_highpart(d); \
- __d0 = __ll_lowpart(d); \
- \
- __r1 = (n1) % __d1; \
- __q1 = (n1) / __d1; \
- __m = (UWtype) __q1 * __d0; \
- __r1 = __r1 * __ll_B | __ll_highpart(n0); \
- if (__r1 < __m) { \
- __q1--, __r1 += (d); \
- if (__r1 >= (d)) \
- if (__r1 < __m) \
- __q1--, __r1 += (d); \
- } \
- __r1 -= __m; \
- __r0 = __r1 % __d1; \
- __q0 = __r1 / __d1; \
- __m = (UWtype) __q0 * __d0; \
- __r0 = __r0 * __ll_B | __ll_lowpart(n0); \
- if (__r0 < __m) { \
- __q0--, __r0 += (d); \
- if (__r0 >= (d)) \
- if (__r0 < __m) \
- __q0--, __r0 += (d); \
- } \
- __r0 -= __m; \
- (q) = (UWtype) __q1 * __ll_B | __q0; \
- (r) = __r0; \
-} while (0)
diff --git a/arch/nds32/include/asm/shmparam.h b/arch/nds32/include/asm/shmparam.h
deleted file mode 100644
index 3aeee946973d..000000000000
--- a/arch/nds32/include/asm/shmparam.h
+++ /dev/null
@@ -1,19 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#ifndef _ASMNDS32_SHMPARAM_H
-#define _ASMNDS32_SHMPARAM_H
-
-/*
- * This should be the size of the virtually indexed cache/ways,
- * whichever is greater since the cache aliases every size/ways
- * bytes.
- */
-#define SHMLBA (4 * SZ_8K) /* attach addr a multiple of this */
-
-/*
- * Enforce SHMLBA in shmat
- */
-#define __ARCH_FORCE_SHMLBA
-
-#endif /* _ASMNDS32_SHMPARAM_H */
diff --git a/arch/nds32/include/asm/stacktrace.h b/arch/nds32/include/asm/stacktrace.h
deleted file mode 100644
index 6bf7c777bda4..000000000000
--- a/arch/nds32/include/asm/stacktrace.h
+++ /dev/null
@@ -1,39 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/* Copyright (C) 2008-2018 Andes Technology Corporation */
-
-#ifndef __ASM_STACKTRACE_H
-#define __ASM_STACKTRACE_H
-
-/* Kernel callchain */
-struct stackframe {
- unsigned long fp;
- unsigned long sp;
- unsigned long lp;
-};
-
-/*
- * struct frame_tail: User callchain
- * IMPORTANT:
- * This struct is used for call-stack walking,
- * the order and types matters.
- * Do not use array, it only stores sizeof(pointer)
- *
- * The details can refer to arch/arm/kernel/perf_event.c
- */
-struct frame_tail {
- unsigned long stack_fp;
- unsigned long stack_lp;
-};
-
-/* For User callchain with optimize for size */
-struct frame_tail_opt_size {
- unsigned long stack_r6;
- unsigned long stack_fp;
- unsigned long stack_gp;
- unsigned long stack_lp;
-};
-
-extern void
-get_real_ret_addr(unsigned long *addr, struct task_struct *tsk, int *graph);
-
-#endif /* __ASM_STACKTRACE_H */
diff --git a/arch/nds32/include/asm/string.h b/arch/nds32/include/asm/string.h
deleted file mode 100644
index cae8fe16de98..000000000000
--- a/arch/nds32/include/asm/string.h
+++ /dev/null
@@ -1,17 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#ifndef __ASM_NDS32_STRING_H
-#define __ASM_NDS32_STRING_H
-
-#define __HAVE_ARCH_MEMCPY
-extern void *memcpy(void *, const void *, __kernel_size_t);
-
-#define __HAVE_ARCH_MEMMOVE
-extern void *memmove(void *, const void *, __kernel_size_t);
-
-#define __HAVE_ARCH_MEMSET
-extern void *memset(void *, int, __kernel_size_t);
-
-extern void *memzero(void *ptr, __kernel_size_t n);
-#endif
diff --git a/arch/nds32/include/asm/suspend.h b/arch/nds32/include/asm/suspend.h
deleted file mode 100644
index 6ed2418af1ac..000000000000
--- a/arch/nds32/include/asm/suspend.h
+++ /dev/null
@@ -1,11 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-// Copyright (C) 2008-2017 Andes Technology Corporation
-
-#ifndef __ASM_NDS32_SUSPEND_H
-#define __ASM_NDS32_SUSPEND_H
-
-extern void suspend2ram(void);
-extern void cpu_resume(void);
-extern unsigned long wake_mask;
-
-#endif
diff --git a/arch/nds32/include/asm/swab.h b/arch/nds32/include/asm/swab.h
deleted file mode 100644
index 362a466f2976..000000000000
--- a/arch/nds32/include/asm/swab.h
+++ /dev/null
@@ -1,35 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#ifndef __NDS32_SWAB_H__
-#define __NDS32_SWAB_H__
-
-#include <linux/types.h>
-#include <linux/compiler.h>
-
-static __inline__ __attribute_const__ __u32 ___arch__swab32(__u32 x)
-{
- __asm__("wsbh %0, %0\n\t" /* word swap byte within halfword */
- "rotri %0, %0, #16\n"
- :"=r"(x)
- :"0"(x));
- return x;
-}
-
-static __inline__ __attribute_const__ __u16 ___arch__swab16(__u16 x)
-{
- __asm__("wsbh %0, %0\n" /* word swap byte within halfword */
- :"=r"(x)
- :"0"(x));
- return x;
-}
-
-#define __arch_swab32(x) ___arch__swab32(x)
-#define __arch_swab16(x) ___arch__swab16(x)
-
-#if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
-#define __BYTEORDER_HAS_U64__
-#define __SWAB_64_THRU_32__
-#endif
-
-#endif /* __NDS32_SWAB_H__ */
diff --git a/arch/nds32/include/asm/syscall.h b/arch/nds32/include/asm/syscall.h
deleted file mode 100644
index 90aa56c94af1..000000000000
--- a/arch/nds32/include/asm/syscall.h
+++ /dev/null
@@ -1,142 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-// Copyright (C) 2008-2009 Red Hat, Inc. All rights reserved.
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#ifndef _ASM_NDS32_SYSCALL_H
-#define _ASM_NDS32_SYSCALL_H 1
-
-#include <uapi/linux/audit.h>
-#include <linux/err.h>
-struct task_struct;
-struct pt_regs;
-
-/**
- * syscall_get_nr - find what system call a task is executing
- * @task: task of interest, must be blocked
- * @regs: task_pt_regs() of @task
- *
- * If @task is executing a system call or is at system call
- * tracing about to attempt one, returns the system call number.
- * If @task is not executing a system call, i.e. it's blocked
- * inside the kernel for a fault or signal, returns -1.
- *
- * Note this returns int even on 64-bit machines. Only 32 bits of
- * system call number can be meaningful. If the actual arch value
- * is 64 bits, this truncates to 32 bits so 0xffffffff means -1.
- *
- * It's only valid to call this when @task is known to be blocked.
- */
-static inline int
-syscall_get_nr(struct task_struct *task, struct pt_regs *regs)
-{
- return regs->syscallno;
-}
-
-/**
- * syscall_rollback - roll back registers after an aborted system call
- * @task: task of interest, must be in system call exit tracing
- * @regs: task_pt_regs() of @task
- *
- * It's only valid to call this when @task is stopped for system
- * call exit tracing (due to TIF_SYSCALL_TRACE or TIF_SYSCALL_AUDIT),
- * after tracehook_report_syscall_entry() returned nonzero to prevent
- * the system call from taking place.
- *
- * This rolls back the register state in @regs so it's as if the
- * system call instruction was a no-op. The registers containing
- * the system call number and arguments are as they were before the
- * system call instruction. This may not be the same as what the
- * register state looked like at system call entry tracing.
- */
-static inline void
-syscall_rollback(struct task_struct *task, struct pt_regs *regs)
-{
- regs->uregs[0] = regs->orig_r0;
-}
-
-/**
- * syscall_get_error - check result of traced system call
- * @task: task of interest, must be blocked
- * @regs: task_pt_regs() of @task
- *
- * Returns 0 if the system call succeeded, or -ERRORCODE if it failed.
- *
- * It's only valid to call this when @task is stopped for tracing on exit
- * from a system call, due to %TIF_SYSCALL_TRACE or %TIF_SYSCALL_AUDIT.
- */
-static inline long
-syscall_get_error(struct task_struct *task, struct pt_regs *regs)
-{
- unsigned long error = regs->uregs[0];
- return IS_ERR_VALUE(error) ? error : 0;
-}
-
-/**
- * syscall_get_return_value - get the return value of a traced system call
- * @task: task of interest, must be blocked
- * @regs: task_pt_regs() of @task
- *
- * Returns the return value of the successful system call.
- * This value is meaningless if syscall_get_error() returned nonzero.
- *
- * It's only valid to call this when @task is stopped for tracing on exit
- * from a system call, due to %TIF_SYSCALL_TRACE or %TIF_SYSCALL_AUDIT.
- */
-static inline long
-syscall_get_return_value(struct task_struct *task, struct pt_regs *regs)
-{
- return regs->uregs[0];
-}
-
-/**
- * syscall_set_return_value - change the return value of a traced system call
- * @task: task of interest, must be blocked
- * @regs: task_pt_regs() of @task
- * @error: negative error code, or zero to indicate success
- * @val: user return value if @error is zero
- *
- * This changes the results of the system call that user mode will see.
- * If @error is zero, the user sees a successful system call with a
- * return value of @val. If @error is nonzero, it's a negated errno
- * code; the user sees a failed system call with this errno code.
- *
- * It's only valid to call this when @task is stopped for tracing on exit
- * from a system call, due to %TIF_SYSCALL_TRACE or %TIF_SYSCALL_AUDIT.
- */
-static inline void
-syscall_set_return_value(struct task_struct *task, struct pt_regs *regs,
- int error, long val)
-{
- regs->uregs[0] = (long)error ? error : val;
-}
-
-/**
- * syscall_get_arguments - extract system call parameter values
- * @task: task of interest, must be blocked
- * @regs: task_pt_regs() of @task
- * @args: array filled with argument values
- *
- * Fetches 6 arguments to the system call (from 0 through 5). The first
- * argument is stored in @args[0], and so on.
- *
- * It's only valid to call this when @task is stopped for tracing on
- * entry to a system call, due to %TIF_SYSCALL_TRACE or %TIF_SYSCALL_AUDIT.
- */
-#define SYSCALL_MAX_ARGS 6
-static inline void
-syscall_get_arguments(struct task_struct *task, struct pt_regs *regs,
- unsigned long *args)
-{
- args[0] = regs->orig_r0;
- args++;
- memcpy(args, ®s->uregs[0] + 1, 5 * sizeof(args[0]));
-}
-
-static inline int
-syscall_get_arch(struct task_struct *task)
-{
- return IS_ENABLED(CONFIG_CPU_BIG_ENDIAN)
- ? AUDIT_ARCH_NDS32BE : AUDIT_ARCH_NDS32;
-}
-
-#endif /* _ASM_NDS32_SYSCALL_H */
diff --git a/arch/nds32/include/asm/syscalls.h b/arch/nds32/include/asm/syscalls.h
deleted file mode 100644
index 4e7216082a67..000000000000
--- a/arch/nds32/include/asm/syscalls.h
+++ /dev/null
@@ -1,14 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#ifndef __ASM_NDS32_SYSCALLS_H
-#define __ASM_NDS32_SYSCALLS_H
-
-asmlinkage long sys_cacheflush(unsigned long addr, unsigned long len, unsigned int op);
-asmlinkage long sys_fadvise64_64_wrapper(int fd, int advice, loff_t offset, loff_t len);
-asmlinkage long sys_rt_sigreturn_wrapper(void);
-asmlinkage long sys_fp_udfiex_crtl(int cmd, int act);
-
-#include <asm-generic/syscalls.h>
-
-#endif /* __ASM_NDS32_SYSCALLS_H */
diff --git a/arch/nds32/include/asm/thread_info.h b/arch/nds32/include/asm/thread_info.h
deleted file mode 100644
index d3967ad184f0..000000000000
--- a/arch/nds32/include/asm/thread_info.h
+++ /dev/null
@@ -1,76 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#ifndef __ASM_NDS32_THREAD_INFO_H
-#define __ASM_NDS32_THREAD_INFO_H
-
-#ifdef __KERNEL__
-
-#define THREAD_SIZE_ORDER (1)
-#define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER)
-
-#ifndef __ASSEMBLY__
-
-struct task_struct;
-
-#include <asm/ptrace.h>
-#include <asm/types.h>
-
-typedef unsigned long mm_segment_t;
-
-/*
- * low level task data that entry.S needs immediate access to.
- * __switch_to() assumes cpu_context follows immediately after cpu_domain.
- */
-struct thread_info {
- unsigned long flags; /* low level flags */
- __s32 preempt_count; /* 0 => preemptable, <0 => bug */
- mm_segment_t addr_limit; /* address limit */
-};
-#define INIT_THREAD_INFO(tsk) \
-{ \
- .preempt_count = INIT_PREEMPT_COUNT, \
- .addr_limit = KERNEL_DS, \
-}
-#define thread_saved_pc(tsk) ((unsigned long)(tsk->thread.cpu_context.pc))
-#define thread_saved_fp(tsk) ((unsigned long)(tsk->thread.cpu_context.fp))
-#endif
-
-/*
- * thread information flags:
- * TIF_SYSCALL_TRACE - syscall trace active
- * TIF_SIGPENDING - signal pending
- * TIF_NEED_RESCHED - rescheduling necessary
- * TIF_NOTIFY_RESUME - callback before returning to user
- * TIF_POLLING_NRFLAG - true if poll_idle() is polling TIF_NEED_RESCHED
- */
-#define TIF_SIGPENDING 1
-#define TIF_NEED_RESCHED 2
-#define TIF_SINGLESTEP 3
-#define TIF_NOTIFY_RESUME 4 /* callback before returning to user */
-#define TIF_NOTIFY_SIGNAL 5 /* signal notifications exist */
-#define TIF_SYSCALL_TRACE 8
-#define TIF_POLLING_NRFLAG 17
-#define TIF_MEMDIE 18
-#define TIF_FREEZE 19
-#define TIF_RESTORE_SIGMASK 20
-
-#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
-#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)
-#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
-#define _TIF_NOTIFY_SIGNAL (1 << TIF_NOTIFY_SIGNAL)
-#define _TIF_SINGLESTEP (1 << TIF_SINGLESTEP)
-#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
-#define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG)
-#define _TIF_FREEZE (1 << TIF_FREEZE)
-#define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK)
-
-/*
- * Change these and you break ASM code in entry-common.S
- */
-#define _TIF_WORK_MASK 0x000000ff
-#define _TIF_WORK_SYSCALL_ENTRY (_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP)
-#define _TIF_WORK_SYSCALL_LEAVE (_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP)
-
-#endif /* __KERNEL__ */
-#endif /* __ASM_NDS32_THREAD_INFO_H */
diff --git a/arch/nds32/include/asm/tlb.h b/arch/nds32/include/asm/tlb.h
deleted file mode 100644
index 672603804a3b..000000000000
--- a/arch/nds32/include/asm/tlb.h
+++ /dev/null
@@ -1,11 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#ifndef __ASMNDS32_TLB_H
-#define __ASMNDS32_TLB_H
-
-#include <asm-generic/tlb.h>
-
-#define __pte_free_tlb(tlb, pte, addr) pte_free((tlb)->mm, pte)
-
-#endif
diff --git a/arch/nds32/include/asm/tlbflush.h b/arch/nds32/include/asm/tlbflush.h
deleted file mode 100644
index 97155366ea01..000000000000
--- a/arch/nds32/include/asm/tlbflush.h
+++ /dev/null
@@ -1,46 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#ifndef _ASMNDS32_TLBFLUSH_H
-#define _ASMNDS32_TLBFLUSH_H
-
-#include <linux/spinlock.h>
-#include <linux/mm.h>
-#include <nds32_intrinsic.h>
-
-static inline void local_flush_tlb_all(void)
-{
- __nds32__tlbop_flua();
- __nds32__isb();
-}
-
-static inline void local_flush_tlb_mm(struct mm_struct *mm)
-{
- __nds32__tlbop_flua();
- __nds32__isb();
-}
-
-static inline void local_flush_tlb_kernel_range(unsigned long start,
- unsigned long end)
-{
- while (start < end) {
- __nds32__tlbop_inv(start);
- __nds32__isb();
- start += PAGE_SIZE;
- }
-}
-
-void local_flush_tlb_range(struct vm_area_struct *vma,
- unsigned long start, unsigned long end);
-void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long addr);
-
-#define flush_tlb_all local_flush_tlb_all
-#define flush_tlb_mm local_flush_tlb_mm
-#define flush_tlb_range local_flush_tlb_range
-#define flush_tlb_page local_flush_tlb_page
-#define flush_tlb_kernel_range local_flush_tlb_kernel_range
-
-void update_mmu_cache(struct vm_area_struct *vma,
- unsigned long address, pte_t * pte);
-
-#endif
diff --git a/arch/nds32/include/asm/uaccess.h b/arch/nds32/include/asm/uaccess.h
deleted file mode 100644
index d4cbf069dc22..000000000000
--- a/arch/nds32/include/asm/uaccess.h
+++ /dev/null
@@ -1,286 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#ifndef _ASMANDES_UACCESS_H
-#define _ASMANDES_UACCESS_H
-
-/*
- * User space memory access functions
- */
-#include <linux/sched.h>
-#include <asm/errno.h>
-#include <asm/memory.h>
-#include <asm/types.h>
-
-#define __asmeq(x, y) ".ifnc " x "," y " ; .err ; .endif\n\t"
-
-/*
- * The exception table consists of pairs of addresses: the first is the
- * address of an instruction that is allowed to fault, and the second is
- * the address at which the program should continue. No registers are
- * modified, so it is entirely up to the continuation code to figure out
- * what to do.
- *
- * All the routines below use bits of fixup code that are out of line
- * with the main instruction path. This means when everything is well,
- * we don't even have to jump over them. Further, they do not intrude
- * on our cache or tlb entries.
- */
-
-struct exception_table_entry {
- unsigned long insn, fixup;
-};
-
-extern int fixup_exception(struct pt_regs *regs);
-
-#define KERNEL_DS ((mm_segment_t) { ~0UL })
-#define USER_DS ((mm_segment_t) {TASK_SIZE - 1})
-
-#define get_fs() (current_thread_info()->addr_limit)
-#define user_addr_max get_fs
-
-static inline void set_fs(mm_segment_t fs)
-{
- current_thread_info()->addr_limit = fs;
-}
-
-#define uaccess_kernel() (get_fs() == KERNEL_DS)
-
-#define __range_ok(addr, size) (size <= get_fs() && addr <= (get_fs() -size))
-
-#define access_ok(addr, size) \
- __range_ok((unsigned long)addr, (unsigned long)size)
-/*
- * Single-value transfer routines. They automatically use the right
- * size if we just have the right pointer type. Note that the functions
- * which read from user space (*get_*) need to take care not to leak
- * kernel data even if the calling code is buggy and fails to check
- * the return value. This means zeroing out the destination variable
- * or buffer on error. Normally this is done out of line by the
- * fixup code, but there are a few places where it intrudes on the
- * main code path. When we only write to user space, there is no
- * problem.
- *
- * The "__xxx" versions of the user access functions do not verify the
- * address space - it must have been done previously with a separate
- * "access_ok()" call.
- *
- * The "xxx_error" versions set the third argument to EFAULT if an
- * error occurs, and leave it unchanged on success. Note that these
- * versions are void (ie, don't return a value as such).
- */
-
-#define get_user __get_user \
-
-#define __get_user(x, ptr) \
-({ \
- long __gu_err = 0; \
- __get_user_check((x), (ptr), __gu_err); \
- __gu_err; \
-})
-
-#define __get_user_error(x, ptr, err) \
-({ \
- __get_user_check((x), (ptr), (err)); \
- (void)0; \
-})
-
-#define __get_user_check(x, ptr, err) \
-({ \
- const __typeof__(*(ptr)) __user *__p = (ptr); \
- might_fault(); \
- if (access_ok(__p, sizeof(*__p))) { \
- __get_user_err((x), __p, (err)); \
- } else { \
- (x) = 0; (err) = -EFAULT; \
- } \
-})
-
-#define __get_user_err(x, ptr, err) \
-do { \
- unsigned long __gu_val; \
- __chk_user_ptr(ptr); \
- switch (sizeof(*(ptr))) { \
- case 1: \
- __get_user_asm("lbi", __gu_val, (ptr), (err)); \
- break; \
- case 2: \
- __get_user_asm("lhi", __gu_val, (ptr), (err)); \
- break; \
- case 4: \
- __get_user_asm("lwi", __gu_val, (ptr), (err)); \
- break; \
- case 8: \
- __get_user_asm_dword(__gu_val, (ptr), (err)); \
- break; \
- default: \
- BUILD_BUG(); \
- break; \
- } \
- (x) = (__force __typeof__(*(ptr)))__gu_val; \
-} while (0)
-
-#define __get_user_asm(inst, x, addr, err) \
- __asm__ __volatile__ ( \
- "1: "inst" %1,[%2]\n" \
- "2:\n" \
- " .section .fixup,\"ax\"\n" \
- " .align 2\n" \
- "3: move %0, %3\n" \
- " move %1, #0\n" \
- " b 2b\n" \
- " .previous\n" \
- " .section __ex_table,\"a\"\n" \
- " .align 3\n" \
- " .long 1b, 3b\n" \
- " .previous" \
- : "+r" (err), "=&r" (x) \
- : "r" (addr), "i" (-EFAULT) \
- : "cc")
-
-#ifdef __NDS32_EB__
-#define __gu_reg_oper0 "%H1"
-#define __gu_reg_oper1 "%L1"
-#else
-#define __gu_reg_oper0 "%L1"
-#define __gu_reg_oper1 "%H1"
-#endif
-
-#define __get_user_asm_dword(x, addr, err) \
- __asm__ __volatile__ ( \
- "\n1:\tlwi " __gu_reg_oper0 ",[%2]\n" \
- "\n2:\tlwi " __gu_reg_oper1 ",[%2+4]\n" \
- "3:\n" \
- " .section .fixup,\"ax\"\n" \
- " .align 2\n" \
- "4: move %0, %3\n" \
- " b 3b\n" \
- " .previous\n" \
- " .section __ex_table,\"a\"\n" \
- " .align 3\n" \
- " .long 1b, 4b\n" \
- " .long 2b, 4b\n" \
- " .previous" \
- : "+r"(err), "=&r"(x) \
- : "r"(addr), "i"(-EFAULT) \
- : "cc")
-
-#define put_user __put_user \
-
-#define __put_user(x, ptr) \
-({ \
- long __pu_err = 0; \
- __put_user_err((x), (ptr), __pu_err); \
- __pu_err; \
-})
-
-#define __put_user_error(x, ptr, err) \
-({ \
- __put_user_err((x), (ptr), (err)); \
- (void)0; \
-})
-
-#define __put_user_check(x, ptr, err) \
-({ \
- __typeof__(*(ptr)) __user *__p = (ptr); \
- might_fault(); \
- if (access_ok(__p, sizeof(*__p))) { \
- __put_user_err((x), __p, (err)); \
- } else { \
- (err) = -EFAULT; \
- } \
-})
-
-#define __put_user_err(x, ptr, err) \
-do { \
- __typeof__(*(ptr)) __pu_val = (x); \
- __chk_user_ptr(ptr); \
- switch (sizeof(*(ptr))) { \
- case 1: \
- __put_user_asm("sbi", __pu_val, (ptr), (err)); \
- break; \
- case 2: \
- __put_user_asm("shi", __pu_val, (ptr), (err)); \
- break; \
- case 4: \
- __put_user_asm("swi", __pu_val, (ptr), (err)); \
- break; \
- case 8: \
- __put_user_asm_dword(__pu_val, (ptr), (err)); \
- break; \
- default: \
- BUILD_BUG(); \
- break; \
- } \
-} while (0)
-
-#define __put_user_asm(inst, x, addr, err) \
- __asm__ __volatile__ ( \
- "1: "inst" %1,[%2]\n" \
- "2:\n" \
- " .section .fixup,\"ax\"\n" \
- " .align 2\n" \
- "3: move %0, %3\n" \
- " b 2b\n" \
- " .previous\n" \
- " .section __ex_table,\"a\"\n" \
- " .align 3\n" \
- " .long 1b, 3b\n" \
- " .previous" \
- : "+r" (err) \
- : "r" (x), "r" (addr), "i" (-EFAULT) \
- : "cc")
-
-#ifdef __NDS32_EB__
-#define __pu_reg_oper0 "%H2"
-#define __pu_reg_oper1 "%L2"
-#else
-#define __pu_reg_oper0 "%L2"
-#define __pu_reg_oper1 "%H2"
-#endif
-
-#define __put_user_asm_dword(x, addr, err) \
- __asm__ __volatile__ ( \
- "\n1:\tswi " __pu_reg_oper0 ",[%1]\n" \
- "\n2:\tswi " __pu_reg_oper1 ",[%1+4]\n" \
- "3:\n" \
- " .section .fixup,\"ax\"\n" \
- " .align 2\n" \
- "4: move %0, %3\n" \
- " b 3b\n" \
- " .previous\n" \
- " .section __ex_table,\"a\"\n" \
- " .align 3\n" \
- " .long 1b, 4b\n" \
- " .long 2b, 4b\n" \
- " .previous" \
- : "+r"(err) \
- : "r"(addr), "r"(x), "i"(-EFAULT) \
- : "cc")
-
-extern unsigned long __arch_clear_user(void __user * addr, unsigned long n);
-extern long strncpy_from_user(char *dest, const char __user * src, long count);
-extern __must_check long strnlen_user(const char __user * str, long n);
-extern unsigned long __arch_copy_from_user(void *to, const void __user * from,
- unsigned long n);
-extern unsigned long __arch_copy_to_user(void __user * to, const void *from,
- unsigned long n);
-
-#define raw_copy_from_user __arch_copy_from_user
-#define raw_copy_to_user __arch_copy_to_user
-
-#define INLINE_COPY_FROM_USER
-#define INLINE_COPY_TO_USER
-static inline unsigned long clear_user(void __user * to, unsigned long n)
-{
- if (access_ok(to, n))
- n = __arch_clear_user(to, n);
- return n;
-}
-
-static inline unsigned long __clear_user(void __user * to, unsigned long n)
-{
- return __arch_clear_user(to, n);
-}
-
-#endif /* _ASMNDS32_UACCESS_H */
diff --git a/arch/nds32/include/asm/unistd.h b/arch/nds32/include/asm/unistd.h
deleted file mode 100644
index bf5e2d440913..000000000000
--- a/arch/nds32/include/asm/unistd.h
+++ /dev/null
@@ -1,6 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#define __ARCH_WANT_SYS_CLONE
-
-#include <uapi/asm/unistd.h>
diff --git a/arch/nds32/include/asm/vdso.h b/arch/nds32/include/asm/vdso.h
deleted file mode 100644
index 89b113ffc3dc..000000000000
--- a/arch/nds32/include/asm/vdso.h
+++ /dev/null
@@ -1,24 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * Copyright (C) 2005-2017 Andes Technology Corporation
- */
-
-#ifndef __ASM_VDSO_H
-#define __ASM_VDSO_H
-
-#ifdef __KERNEL__
-
-#ifndef __ASSEMBLY__
-
-#include <generated/vdso-offsets.h>
-
-#define VDSO_SYMBOL(base, name) \
-({ \
- (unsigned long)(vdso_offset_##name + (unsigned long)(base)); \
-})
-
-#endif /* !__ASSEMBLY__ */
-
-#endif /* __KERNEL__ */
-
-#endif /* __ASM_VDSO_H */
diff --git a/arch/nds32/include/asm/vdso_datapage.h b/arch/nds32/include/asm/vdso_datapage.h
deleted file mode 100644
index 74c68802021e..000000000000
--- a/arch/nds32/include/asm/vdso_datapage.h
+++ /dev/null
@@ -1,37 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-// Copyright (C) 2012 ARM Limited
-// Copyright (C) 2005-2017 Andes Technology Corporation
-#ifndef __ASM_VDSO_DATAPAGE_H
-#define __ASM_VDSO_DATAPAGE_H
-
-#ifdef __KERNEL__
-
-#ifndef __ASSEMBLY__
-
-struct vdso_data {
- bool cycle_count_down; /* timer cyclye counter is decrease with time */
- u32 cycle_count_offset; /* offset of timer cycle counter register */
- u32 seq_count; /* sequence count - odd during updates */
- u32 xtime_coarse_sec; /* coarse time */
- u32 xtime_coarse_nsec;
-
- u32 wtm_clock_sec; /* wall to monotonic offset */
- u32 wtm_clock_nsec;
- u32 xtime_clock_sec; /* CLOCK_REALTIME - seconds */
- u32 cs_mult; /* clocksource multiplier */
- u32 cs_shift; /* Cycle to nanosecond divisor (power of two) */
- u32 hrtimer_res; /* hrtimer resolution */
-
- u64 cs_cycle_last; /* last cycle value */
- u64 cs_mask; /* clocksource mask */
-
- u64 xtime_clock_nsec; /* CLOCK_REALTIME sub-ns base */
- u32 tz_minuteswest; /* timezone info for gettimeofday(2) */
- u32 tz_dsttime;
-};
-
-#endif /* !__ASSEMBLY__ */
-
-#endif /* __KERNEL__ */
-
-#endif /* __ASM_VDSO_DATAPAGE_H */
diff --git a/arch/nds32/include/asm/vdso_timer_info.h b/arch/nds32/include/asm/vdso_timer_info.h
deleted file mode 100644
index 328439ce37db..000000000000
--- a/arch/nds32/include/asm/vdso_timer_info.h
+++ /dev/null
@@ -1,14 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-extern struct timer_info_t timer_info;
-#define EMPTY_VALUE ~(0UL)
-#define EMPTY_TIMER_MAPPING EMPTY_VALUE
-#define EMPTY_REG_OFFSET EMPTY_VALUE
-
-struct timer_info_t
-{
- bool cycle_count_down;
- unsigned long mapping_base;
- unsigned long cycle_count_reg_offset;
-};
diff --git a/arch/nds32/include/asm/vermagic.h b/arch/nds32/include/asm/vermagic.h
deleted file mode 100644
index f772e7ba33f1..000000000000
--- a/arch/nds32/include/asm/vermagic.h
+++ /dev/null
@@ -1,9 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#ifndef _ASM_VERMAGIC_H
-#define _ASM_VERMAGIC_H
-
-#define MODULE_ARCH_VERMAGIC "NDS32v3"
-
-#endif /* _ASM_VERMAGIC_H */
diff --git a/arch/nds32/include/asm/vmalloc.h b/arch/nds32/include/asm/vmalloc.h
deleted file mode 100644
index caeed3898419..000000000000
--- a/arch/nds32/include/asm/vmalloc.h
+++ /dev/null
@@ -1,4 +0,0 @@
-#ifndef _ASM_NDS32_VMALLOC_H
-#define _ASM_NDS32_VMALLOC_H
-
-#endif /* _ASM_NDS32_VMALLOC_H */
diff --git a/arch/nds32/include/uapi/asm/Kbuild b/arch/nds32/include/uapi/asm/Kbuild
deleted file mode 100644
index e78470141932..000000000000
--- a/arch/nds32/include/uapi/asm/Kbuild
+++ /dev/null
@@ -1,2 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0
-generic-y += ucontext.h
diff --git a/arch/nds32/include/uapi/asm/auxvec.h b/arch/nds32/include/uapi/asm/auxvec.h
deleted file mode 100644
index bc0b92ab8c15..000000000000
--- a/arch/nds32/include/uapi/asm/auxvec.h
+++ /dev/null
@@ -1,19 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#ifndef __ASM_AUXVEC_H
-#define __ASM_AUXVEC_H
-
-/*
- * This entry gives some information about the FPU initialization
- * performed by the kernel.
- */
-#define AT_FPUCW 18 /* Used FPU control word. */
-
-
-/* VDSO location */
-#define AT_SYSINFO_EHDR 33
-
-#define AT_VECTOR_SIZE_ARCH 1
-
-#endif
diff --git a/arch/nds32/include/uapi/asm/byteorder.h b/arch/nds32/include/uapi/asm/byteorder.h
deleted file mode 100644
index c264ef12c49c..000000000000
--- a/arch/nds32/include/uapi/asm/byteorder.h
+++ /dev/null
@@ -1,13 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#ifndef __NDS32_BYTEORDER_H__
-#define __NDS32_BYTEORDER_H__
-
-#ifdef __NDS32_EB__
-#include <linux/byteorder/big_endian.h>
-#else
-#include <linux/byteorder/little_endian.h>
-#endif
-
-#endif /* __NDS32_BYTEORDER_H__ */
diff --git a/arch/nds32/include/uapi/asm/cachectl.h b/arch/nds32/include/uapi/asm/cachectl.h
deleted file mode 100644
index 31b9b439d819..000000000000
--- a/arch/nds32/include/uapi/asm/cachectl.h
+++ /dev/null
@@ -1,14 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-// Copyright (C) 1994, 1995, 1996 by Ralf Baechle
-// Copyright (C) 2005-2017 Andes Technology Corporation
-#ifndef _ASM_CACHECTL
-#define _ASM_CACHECTL
-
-/*
- * Options for cacheflush system call
- */
-#define ICACHE 0 /* flush instruction cache */
-#define DCACHE 1 /* writeback and flush data cache */
-#define BCACHE 2 /* flush instruction cache + writeback and flush data cache */
-
-#endif /* _ASM_CACHECTL */
diff --git a/arch/nds32/include/uapi/asm/fp_udfiex_crtl.h b/arch/nds32/include/uapi/asm/fp_udfiex_crtl.h
deleted file mode 100644
index f17396db16ec..000000000000
--- a/arch/nds32/include/uapi/asm/fp_udfiex_crtl.h
+++ /dev/null
@@ -1,16 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-/* Copyright (C) 2005-2019 Andes Technology Corporation */
-#ifndef _FP_UDF_IEX_CRTL_H
-#define _FP_UDF_IEX_CRTL_H
-
-/*
- * The cmd list of sys_fp_udfiex_crtl()
- */
-/* Disable UDF or IEX trap based on the content of parameter act */
-#define DISABLE_UDF_IEX_TRAP 0
-/* Enable UDF or IEX trap based on the content of parameter act */
-#define ENABLE_UDF_IEX_TRAP 1
-/* Get current status of UDF and IEX trap */
-#define GET_UDF_IEX_TRAP 2
-
-#endif /* _FP_UDF_IEX_CRTL_H */
diff --git a/arch/nds32/include/uapi/asm/param.h b/arch/nds32/include/uapi/asm/param.h
deleted file mode 100644
index 48d00328d328..000000000000
--- a/arch/nds32/include/uapi/asm/param.h
+++ /dev/null
@@ -1,11 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#ifndef __ASM_NDS32_PARAM_H
-#define __ASM_NDS32_PARAM_H
-
-#define EXEC_PAGESIZE 8192
-
-#include <asm-generic/param.h>
-
-#endif /* __ASM_NDS32_PARAM_H */
diff --git a/arch/nds32/include/uapi/asm/ptrace.h b/arch/nds32/include/uapi/asm/ptrace.h
deleted file mode 100644
index d76217c7c010..000000000000
--- a/arch/nds32/include/uapi/asm/ptrace.h
+++ /dev/null
@@ -1,25 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#ifndef __UAPI_ASM_NDS32_PTRACE_H
-#define __UAPI_ASM_NDS32_PTRACE_H
-
-#ifndef __ASSEMBLY__
-
-/*
- * User structures for general purpose register.
- */
-struct user_pt_regs {
- long uregs[26];
- long fp;
- long gp;
- long lp;
- long sp;
- long ipc;
- long lb;
- long le;
- long lc;
- long syscallno;
-};
-#endif
-#endif
diff --git a/arch/nds32/include/uapi/asm/sigcontext.h b/arch/nds32/include/uapi/asm/sigcontext.h
deleted file mode 100644
index 6c1e6648878f..000000000000
--- a/arch/nds32/include/uapi/asm/sigcontext.h
+++ /dev/null
@@ -1,84 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#ifndef _ASMNDS32_SIGCONTEXT_H
-#define _ASMNDS32_SIGCONTEXT_H
-
-/*
- * Signal context structure - contains all info to do with the state
- * before the signal handler was invoked. Note: only add new entries
- * to the end of the structure.
- */
-struct fpu_struct {
- unsigned long long fd_regs[32];
- unsigned long fpcsr;
- /*
- * When CONFIG_SUPPORT_DENORMAL_ARITHMETIC is defined, kernel prevents
- * hardware from treating the denormalized output as an underflow case
- * and rounding it to a normal number. Hence kernel enables the UDF and
- * IEX trap in the fpcsr register to step in the calculation.
- * However, the UDF and IEX trap enable bit in $fpcsr also lose
- * their use.
- *
- * UDF_IEX_trap replaces the feature of UDF and IEX trap enable bit in
- * $fpcsr to control the trap of underflow and inexact. The bit filed
- * of UDF_IEX_trap is the same as $fpcsr, 10th bit is used to enable UDF
- * exception trapping and 11th bit is used to enable IEX exception
- * trapping.
- *
- * UDF_IEX_trap is only modified through fp_udfiex_crtl syscall.
- * Therefore, UDF_IEX_trap needn't be saved and restored in each
- * context switch.
- */
- unsigned long UDF_IEX_trap;
-};
-
-struct zol_struct {
- unsigned long nds32_lc; /* $LC */
- unsigned long nds32_le; /* $LE */
- unsigned long nds32_lb; /* $LB */
-};
-
-struct sigcontext {
- unsigned long trap_no;
- unsigned long error_code;
- unsigned long oldmask;
- unsigned long nds32_r0;
- unsigned long nds32_r1;
- unsigned long nds32_r2;
- unsigned long nds32_r3;
- unsigned long nds32_r4;
- unsigned long nds32_r5;
- unsigned long nds32_r6;
- unsigned long nds32_r7;
- unsigned long nds32_r8;
- unsigned long nds32_r9;
- unsigned long nds32_r10;
- unsigned long nds32_r11;
- unsigned long nds32_r12;
- unsigned long nds32_r13;
- unsigned long nds32_r14;
- unsigned long nds32_r15;
- unsigned long nds32_r16;
- unsigned long nds32_r17;
- unsigned long nds32_r18;
- unsigned long nds32_r19;
- unsigned long nds32_r20;
- unsigned long nds32_r21;
- unsigned long nds32_r22;
- unsigned long nds32_r23;
- unsigned long nds32_r24;
- unsigned long nds32_r25;
- unsigned long nds32_fp; /* $r28 */
- unsigned long nds32_gp; /* $r29 */
- unsigned long nds32_lp; /* $r30 */
- unsigned long nds32_sp; /* $r31 */
- unsigned long nds32_ipc;
- unsigned long fault_address;
- unsigned long used_math_flag;
- /* FPU Registers */
- struct fpu_struct fpu;
- struct zol_struct zol;
-};
-
-#endif
diff --git a/arch/nds32/include/uapi/asm/unistd.h b/arch/nds32/include/uapi/asm/unistd.h
deleted file mode 100644
index 410795e280fe..000000000000
--- a/arch/nds32/include/uapi/asm/unistd.h
+++ /dev/null
@@ -1,16 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#define __ARCH_WANT_STAT64
-#define __ARCH_WANT_SYNC_FILE_RANGE2
-#define __ARCH_WANT_SET_GET_RLIMIT
-#define __ARCH_WANT_TIME32_SYSCALLS
-
-/* Use the standard ABI for syscalls */
-#include <asm-generic/unistd.h>
-
-/* Additional NDS32 specific syscalls. */
-#define __NR_cacheflush (__NR_arch_specific_syscall)
-#define __NR_fp_udfiex_crtl (__NR_arch_specific_syscall + 1)
-__SYSCALL(__NR_cacheflush, sys_cacheflush)
-__SYSCALL(__NR_fp_udfiex_crtl, sys_fp_udfiex_crtl)
diff --git a/arch/nds32/kernel/.gitignore b/arch/nds32/kernel/.gitignore
deleted file mode 100644
index bbb90f92d051..000000000000
--- a/arch/nds32/kernel/.gitignore
+++ /dev/null
@@ -1,2 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-vmlinux.lds
diff --git a/arch/nds32/kernel/Makefile b/arch/nds32/kernel/Makefile
deleted file mode 100644
index 394df3f6442c..000000000000
--- a/arch/nds32/kernel/Makefile
+++ /dev/null
@@ -1,33 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-#
-# Makefile for the linux kernel.
-#
-
-CPPFLAGS_vmlinux.lds := -DTEXTADDR=$(TEXTADDR)
-AFLAGS_head.o := -DTEXTADDR=$(TEXTADDR)
-# Object file lists.
-
-obj-y := ex-entry.o ex-exit.o ex-scall.o irq.o \
- process.o ptrace.o setup.o signal.o \
- sys_nds32.o time.o traps.o cacheinfo.o \
- dma.o syscall_table.o vdso.o
-
-obj-$(CONFIG_MODULES) += nds32_ksyms.o module.o
-obj-$(CONFIG_STACKTRACE) += stacktrace.o
-obj-$(CONFIG_FPU) += fpu.o
-obj-$(CONFIG_OF) += devtree.o
-obj-$(CONFIG_CACHE_L2) += atl2c.o
-obj-$(CONFIG_PERF_EVENTS) += perf_event_cpu.o
-obj-$(CONFIG_PM) += pm.o sleep.o
-extra-y := head.o vmlinux.lds
-
-CFLAGS_fpu.o += -mext-fpu-sp -mext-fpu-dp
-
-
-obj-y += vdso/
-
-obj-$(CONFIG_FUNCTION_TRACER) += ftrace.o
-
-ifdef CONFIG_FUNCTION_TRACER
-CFLAGS_REMOVE_ftrace.o = $(CC_FLAGS_FTRACE)
-endif
diff --git a/arch/nds32/kernel/asm-offsets.c b/arch/nds32/kernel/asm-offsets.c
deleted file mode 100644
index 3541d5981de7..000000000000
--- a/arch/nds32/kernel/asm-offsets.c
+++ /dev/null
@@ -1,28 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <linux/sched.h>
-#include <linux/sched/task_stack.h>
-#include <linux/kbuild.h>
-#include <asm/thread_info.h>
-#include <asm/ptrace.h>
-
-int main(void)
-{
- DEFINE(TSK_TI_FLAGS, offsetof(struct task_struct, thread_info.flags));
- DEFINE(TSK_TI_PREEMPT,
- offsetof(struct task_struct, thread_info.preempt_count));
- DEFINE(THREAD_CPU_CONTEXT,
- offsetof(struct task_struct, thread.cpu_context));
- DEFINE(OSP_OFFSET, offsetof(struct pt_regs, osp));
- DEFINE(SP_OFFSET, offsetof(struct pt_regs, sp));
- DEFINE(FUCOP_CTL_OFFSET, offsetof(struct pt_regs, fucop_ctl));
- DEFINE(IPSW_OFFSET, offsetof(struct pt_regs, ipsw));
- DEFINE(SYSCALLNO_OFFSET, offsetof(struct pt_regs, syscallno));
- DEFINE(IPC_OFFSET, offsetof(struct pt_regs, ipc));
- DEFINE(R0_OFFSET, offsetof(struct pt_regs, uregs[0]));
- DEFINE(R15_OFFSET, offsetof(struct pt_regs, uregs[15]));
- DEFINE(CLOCK_REALTIME_RES, MONOTONIC_RES_NSEC);
- DEFINE(CLOCK_COARSE_RES, LOW_RES_NSEC);
- return 0;
-}
diff --git a/arch/nds32/kernel/atl2c.c b/arch/nds32/kernel/atl2c.c
deleted file mode 100644
index 0c5386e72098..000000000000
--- a/arch/nds32/kernel/atl2c.c
+++ /dev/null
@@ -1,65 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <linux/compiler.h>
-#include <linux/of_address.h>
-#include <linux/of_fdt.h>
-#include <linux/of_platform.h>
-#include <asm/l2_cache.h>
-
-void __iomem *atl2c_base;
-static const struct of_device_id atl2c_ids[] __initconst = {
- {.compatible = "andestech,atl2c",},
- {}
-};
-
-static int __init atl2c_of_init(void)
-{
- struct device_node *np;
- struct resource res;
- unsigned long tmp = 0;
- unsigned long l2set, l2way, l2clsz;
-
- if (!(__nds32__mfsr(NDS32_SR_MSC_CFG) & MSC_CFG_mskL2C))
- return -ENODEV;
-
- np = of_find_matching_node(NULL, atl2c_ids);
- if (!np)
- return -ENODEV;
-
- if (of_address_to_resource(np, 0, &res))
- return -ENODEV;
-
- atl2c_base = ioremap(res.start, resource_size(&res));
- if (!atl2c_base)
- return -ENOMEM;
-
- l2set =
- 64 << ((L2C_R_REG(L2_CA_CONF_OFF) & L2_CA_CONF_mskL2SET) >>
- L2_CA_CONF_offL2SET);
- l2way =
- 1 +
- ((L2C_R_REG(L2_CA_CONF_OFF) & L2_CA_CONF_mskL2WAY) >>
- L2_CA_CONF_offL2WAY);
- l2clsz =
- 4 << ((L2C_R_REG(L2_CA_CONF_OFF) & L2_CA_CONF_mskL2CLSZ) >>
- L2_CA_CONF_offL2CLSZ);
- pr_info("L2:%luKB/%luS/%luW/%luB\n",
- l2set * l2way * l2clsz / 1024, l2set, l2way, l2clsz);
-
- tmp = L2C_R_REG(L2CC_PROT_OFF);
- tmp &= ~L2CC_PROT_mskMRWEN;
- L2C_W_REG(L2CC_PROT_OFF, tmp);
-
- tmp = L2C_R_REG(L2CC_SETUP_OFF);
- tmp &= ~L2CC_SETUP_mskPART;
- L2C_W_REG(L2CC_SETUP_OFF, tmp);
-
- tmp = L2C_R_REG(L2CC_CTRL_OFF);
- tmp |= L2CC_CTRL_mskEN;
- L2C_W_REG(L2CC_CTRL_OFF, tmp);
-
- return 0;
-}
-
-subsys_initcall(atl2c_of_init);
diff --git a/arch/nds32/kernel/cacheinfo.c b/arch/nds32/kernel/cacheinfo.c
deleted file mode 100644
index aab98e447feb..000000000000
--- a/arch/nds32/kernel/cacheinfo.c
+++ /dev/null
@@ -1,49 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <linux/bitops.h>
-#include <linux/cacheinfo.h>
-#include <linux/cpu.h>
-
-static void ci_leaf_init(struct cacheinfo *this_leaf,
- enum cache_type type, unsigned int level)
-{
- char cache_type = (type & CACHE_TYPE_INST ? ICACHE : DCACHE);
-
- this_leaf->level = level;
- this_leaf->type = type;
- this_leaf->coherency_line_size = CACHE_LINE_SIZE(cache_type);
- this_leaf->number_of_sets = CACHE_SET(cache_type);
- this_leaf->ways_of_associativity = CACHE_WAY(cache_type);
- this_leaf->size = this_leaf->number_of_sets *
- this_leaf->coherency_line_size * this_leaf->ways_of_associativity;
-#if defined(CONFIG_CPU_DCACHE_WRITETHROUGH)
- this_leaf->attributes = CACHE_WRITE_THROUGH;
-#else
- this_leaf->attributes = CACHE_WRITE_BACK;
-#endif
-}
-
-int init_cache_level(unsigned int cpu)
-{
- struct cpu_cacheinfo *this_cpu_ci = get_cpu_cacheinfo(cpu);
-
- /* Only 1 level and I/D cache seperate. */
- this_cpu_ci->num_levels = 1;
- this_cpu_ci->num_leaves = 2;
- return 0;
-}
-
-int populate_cache_leaves(unsigned int cpu)
-{
- unsigned int level, idx;
- struct cpu_cacheinfo *this_cpu_ci = get_cpu_cacheinfo(cpu);
- struct cacheinfo *this_leaf = this_cpu_ci->info_list;
-
- for (idx = 0, level = 1; level <= this_cpu_ci->num_levels &&
- idx < this_cpu_ci->num_leaves; idx++, level++) {
- ci_leaf_init(this_leaf++, CACHE_TYPE_DATA, level);
- ci_leaf_init(this_leaf++, CACHE_TYPE_INST, level);
- }
- return 0;
-}
diff --git a/arch/nds32/kernel/devtree.c b/arch/nds32/kernel/devtree.c
deleted file mode 100644
index bdce0fe5af9f..000000000000
--- a/arch/nds32/kernel/devtree.c
+++ /dev/null
@@ -1,19 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <linux/bug.h>
-#include <linux/printk.h>
-#include <linux/of_fdt.h>
-
-void __init early_init_devtree(void *params)
-{
- if (!params || !early_init_dt_scan(params)) {
- pr_crit("\n"
- "Error: invalid device tree blob at (virtual address 0x%p)\n"
- "\nPlease check your bootloader.", params);
-
- BUG_ON(1);
- }
-
- dump_stack_set_arch_desc("%s (DT)", of_flat_dt_get_machine_name());
-}
diff --git a/arch/nds32/kernel/dma.c b/arch/nds32/kernel/dma.c
deleted file mode 100644
index 2ac8e6c82a61..000000000000
--- a/arch/nds32/kernel/dma.c
+++ /dev/null
@@ -1,82 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <linux/types.h>
-#include <linux/mm.h>
-#include <linux/dma-map-ops.h>
-#include <linux/cache.h>
-#include <linux/highmem.h>
-#include <asm/cacheflush.h>
-#include <asm/tlbflush.h>
-#include <asm/proc-fns.h>
-
-static inline void cache_op(phys_addr_t paddr, size_t size,
- void (*fn)(unsigned long start, unsigned long end))
-{
- struct page *page = pfn_to_page(paddr >> PAGE_SHIFT);
- unsigned offset = paddr & ~PAGE_MASK;
- size_t left = size;
- unsigned long start;
-
- do {
- size_t len = left;
-
- if (PageHighMem(page)) {
- void *addr;
-
- if (offset + len > PAGE_SIZE) {
- if (offset >= PAGE_SIZE) {
- page += offset >> PAGE_SHIFT;
- offset &= ~PAGE_MASK;
- }
- len = PAGE_SIZE - offset;
- }
-
- addr = kmap_atomic(page);
- start = (unsigned long)(addr + offset);
- fn(start, start + len);
- kunmap_atomic(addr);
- } else {
- start = (unsigned long)phys_to_virt(paddr);
- fn(start, start + size);
- }
- offset = 0;
- page++;
- left -= len;
- } while (left);
-}
-
-void arch_sync_dma_for_device(phys_addr_t paddr, size_t size,
- enum dma_data_direction dir)
-{
- switch (dir) {
- case DMA_FROM_DEVICE:
- break;
- case DMA_TO_DEVICE:
- case DMA_BIDIRECTIONAL:
- cache_op(paddr, size, cpu_dma_wb_range);
- break;
- default:
- BUG();
- }
-}
-
-void arch_sync_dma_for_cpu(phys_addr_t paddr, size_t size,
- enum dma_data_direction dir)
-{
- switch (dir) {
- case DMA_TO_DEVICE:
- break;
- case DMA_FROM_DEVICE:
- case DMA_BIDIRECTIONAL:
- cache_op(paddr, size, cpu_dma_inval_range);
- break;
- default:
- BUG();
- }
-}
-
-void arch_dma_prep_coherent(struct page *page, size_t size)
-{
- cache_op(page_to_phys(page), size, cpu_dma_wbinval_range);
-}
diff --git a/arch/nds32/kernel/ex-entry.S b/arch/nds32/kernel/ex-entry.S
deleted file mode 100644
index 107d98a1d1b8..000000000000
--- a/arch/nds32/kernel/ex-entry.S
+++ /dev/null
@@ -1,177 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <linux/linkage.h>
-#include <asm/memory.h>
-#include <asm/nds32.h>
-#include <asm/errno.h>
-#include <asm/asm-offsets.h>
-#include <asm/page.h>
-#include <asm/fpu.h>
-
-#ifdef CONFIG_HWZOL
- .macro push_zol
- mfusr $r14, $LB
- mfusr $r15, $LE
- mfusr $r16, $LC
- .endm
-#endif
- .macro skip_save_fucop_ctl
-#if defined(CONFIG_FPU)
-skip_fucop_ctl:
- smw.adm $p0, [$sp], $p0, #0x1
- j fucop_ctl_done
-#endif
- .endm
-
- .macro save_user_regs
-#if defined(CONFIG_FPU)
- sethi $p0, hi20(has_fpu)
- lbsi $p0, [$p0+lo12(has_fpu)]
- beqz $p0, skip_fucop_ctl
- mfsr $p0, $FUCOP_CTL
- smw.adm $p0, [$sp], $p0, #0x1
- bclr $p0, $p0, #FUCOP_CTL_offCP0EN
- mtsr $p0, $FUCOP_CTL
-fucop_ctl_done:
- /* move $SP to the bottom of pt_regs */
- addi $sp, $sp, -FUCOP_CTL_OFFSET
-#else
- smw.adm $sp, [$sp], $sp, #0x1
- /* move $SP to the bottom of pt_regs */
- addi $sp, $sp, -OSP_OFFSET
-#endif
-
- /* push $r0 ~ $r25 */
- smw.bim $r0, [$sp], $r25
- /* push $fp, $gp, $lp */
- smw.bim $sp, [$sp], $sp, #0xe
-
- mfsr $r12, $SP_USR
- mfsr $r13, $IPC
-#ifdef CONFIG_HWZOL
- push_zol
-#endif
- movi $r17, -1
- move $r18, $r0
- mfsr $r19, $PSW
- mfsr $r20, $IPSW
- mfsr $r21, $P_IPSW
- mfsr $r22, $P_IPC
- mfsr $r23, $P_P0
- mfsr $r24, $P_P1
- smw.bim $r12, [$sp], $r24, #0
- addi $sp, $sp, -FUCOP_CTL_OFFSET
-
- /* Initialize kernel space $fp */
- andi $p0, $r20, #PSW_mskPOM
- movi $p1, #0x0
- cmovz $fp, $p1, $p0
-
- andi $r16, $r19, #PSW_mskINTL
- slti $r17, $r16, #4
- bnez $r17, 1f
- addi $r17, $r19, #-2
- mtsr $r17, $PSW
- isb
-1:
- /* If it was superuser mode, we don't need to update $r25 */
- bnez $p0, 2f
- la $p0, __entry_task
- lw $r25, [$p0]
-2:
- .endm
-
- .text
-
-/*
- * Exception Vector
- */
-exception_handlers:
- .long unhandled_exceptions !Reset/NMI
- .long unhandled_exceptions !TLB fill
- .long do_page_fault !PTE not present
- .long do_dispatch_tlb_misc !TLB misc
- .long unhandled_exceptions !TLB VLPT
- .long unhandled_exceptions !Machine Error
- .long do_debug_trap !Debug related
- .long do_dispatch_general !General exception
- .long eh_syscall !Syscall
- .long asm_do_IRQ !IRQ
-
- skip_save_fucop_ctl
-common_exception_handler:
- save_user_regs
- mfsr $p0, $ITYPE
- andi $p0, $p0, #ITYPE_mskVECTOR
- srli $p0, $p0, #ITYPE_offVECTOR
- andi $p1, $p0, #NDS32_VECTOR_mskNONEXCEPTION
- bnez $p1, 1f
- sethi $lp, hi20(ret_from_exception)
- ori $lp, $lp, lo12(ret_from_exception)
- sethi $p1, hi20(exception_handlers)
- ori $p1, $p1, lo12(exception_handlers)
- lw $p1, [$p1+$p0<<2]
- move $r0, $p0
- mfsr $r1, $EVA
- mfsr $r2, $ITYPE
- move $r3, $sp
- mfsr $r4, $OIPC
- /* enable gie if it is enabled in IPSW. */
- mfsr $r21, $PSW
- andi $r20, $r20, #PSW_mskGIE /* r20 is $IPSW*/
- or $r21, $r21, $r20
- mtsr $r21, $PSW
- dsb
- jr $p1
- /* syscall */
-1:
- addi $p1, $p0, #-NDS32_VECTOR_offEXCEPTION
- bnez $p1, 2f
- sethi $lp, hi20(ret_from_exception)
- ori $lp, $lp, lo12(ret_from_exception)
- sethi $p1, hi20(exception_handlers)
- ori $p1, $p1, lo12(exception_handlers)
- lwi $p1, [$p1+#NDS32_VECTOR_offEXCEPTION<<2]
- jr $p1
-
- /* interrupt */
-2:
-#ifdef CONFIG_TRACE_IRQFLAGS
- jal __trace_hardirqs_off
-#endif
- move $r0, $sp
- sethi $lp, hi20(ret_from_intr)
- ori $lp, $lp, lo12(ret_from_intr)
- sethi $p0, hi20(exception_handlers)
- ori $p0, $p0, lo12(exception_handlers)
- lwi $p0, [$p0+#NDS32_VECTOR_offINTERRUPT<<2]
- jr $p0
-
- .macro EXCEPTION_VECTOR_DEBUG
- .align 4
- mfsr $p0, $EDM_CTL
- andi $p0, $p0, EDM_CTL_mskV3_EDM_MODE
- tnez $p0, SWID_RAISE_INTERRUPT_LEVEL
- .endm
-
- .macro EXCEPTION_VECTOR
- .align 4
- sethi $p0, hi20(common_exception_handler)
- ori $p0, $p0, lo12(common_exception_handler)
- jral.ton $p0, $p0
- .endm
-
- .section ".text.init", #alloc, #execinstr
- .global exception_vector
-exception_vector:
-.rept 6
- EXCEPTION_VECTOR
-.endr
- EXCEPTION_VECTOR_DEBUG
-.rept 121
- EXCEPTION_VECTOR
-.endr
- .align 4
- .global exception_vector_end
-exception_vector_end:
diff --git a/arch/nds32/kernel/ex-exit.S b/arch/nds32/kernel/ex-exit.S
deleted file mode 100644
index b30699911b81..000000000000
--- a/arch/nds32/kernel/ex-exit.S
+++ /dev/null
@@ -1,193 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <linux/linkage.h>
-#include <asm/unistd.h>
-#include <asm/assembler.h>
-#include <asm/nds32.h>
-#include <asm/asm-offsets.h>
-#include <asm/thread_info.h>
-#include <asm/current.h>
-#include <asm/fpu.h>
-
-
-
-#ifdef CONFIG_HWZOL
- .macro pop_zol
- mtusr $r14, $LB
- mtusr $r15, $LE
- mtusr $r16, $LC
- .endm
-#endif
-
- .macro restore_user_regs_first
- setgie.d
- isb
-#if defined(CONFIG_FPU)
- addi $sp, $sp, OSP_OFFSET
- lmw.adm $r12, [$sp], $r25, #0x0
- sethi $p0, hi20(has_fpu)
- lbsi $p0, [$p0+lo12(has_fpu)]
- beqz $p0, 2f
- mtsr $r25, $FUCOP_CTL
-2:
-#else
- addi $sp, $sp, FUCOP_CTL_OFFSET
- lmw.adm $r12, [$sp], $r24, #0x0
-#endif
- mtsr $r12, $SP_USR
- mtsr $r13, $IPC
-#ifdef CONFIG_HWZOL
- pop_zol
-#endif
- mtsr $r19, $PSW
- mtsr $r20, $IPSW
- mtsr $r21, $P_IPSW
- mtsr $r22, $P_IPC
- mtsr $r23, $P_P0
- mtsr $r24, $P_P1
- lmw.adm $sp, [$sp], $sp, #0xe
- .endm
-
- .macro restore_user_regs_last
- pop $p0
- cmovn $sp, $p0, $p0
-
- iret
- nop
-
- .endm
-
- .macro restore_user_regs
- restore_user_regs_first
- lmw.adm $r0, [$sp], $r25, #0x0
- addi $sp, $sp, OSP_OFFSET
- restore_user_regs_last
- .endm
-
- .macro fast_restore_user_regs
- restore_user_regs_first
- lmw.adm $r1, [$sp], $r25, #0x0
- addi $sp, $sp, OSP_OFFSET-4
- restore_user_regs_last
- .endm
-
-#ifdef CONFIG_PREEMPTION
- .macro preempt_stop
- .endm
-#else
- .macro preempt_stop
- setgie.d
- isb
- .endm
-#define resume_kernel no_work_pending
-#endif
-
-ENTRY(ret_from_exception)
- preempt_stop
-ENTRY(ret_from_intr)
-
-/*
- * judge Kernel or user mode
- *
- */
- lwi $p0, [$sp+(#IPSW_OFFSET)] ! Check if in nested interrupt
- andi $p0, $p0, #PSW_mskINTL
- bnez $p0, resume_kernel ! done with iret
- j resume_userspace
-
-
-/*
- * This is the fast syscall return path. We do as little as
- * possible here, and this includes saving $r0 back into the SVC
- * stack.
- * fixed: tsk - $r25, syscall # - $r7, syscall table pointer - $r8
- */
-ENTRY(ret_fast_syscall)
- gie_disable
- lwi $r1, [tsk+#TSK_TI_FLAGS]
- andi $p1, $r1, #_TIF_WORK_MASK
- bnez $p1, fast_work_pending
- fast_restore_user_regs ! iret
-
-/*
- * Ok, we need to do extra processing,
- * enter the slow path returning from syscall, while pending work.
- */
-fast_work_pending:
- swi $r0, [$sp+(#R0_OFFSET)] ! what is different from ret_from_exception
-work_pending:
- andi $p1, $r1, #_TIF_NEED_RESCHED
- bnez $p1, work_resched
-
- andi $p1, $r1, #_TIF_SIGPENDING|#_TIF_NOTIFY_RESUME|#_TIF_NOTIFY_SIGNAL
- beqz $p1, no_work_pending
-
- move $r0, $sp ! 'regs'
- gie_enable
- bal do_notify_resume
- b ret_slow_syscall
-work_resched:
- bal schedule ! path, return to user mode
-
-/*
- * "slow" syscall return path.
- */
-ENTRY(resume_userspace)
-ENTRY(ret_slow_syscall)
- gie_disable
- lwi $p0, [$sp+(#IPSW_OFFSET)] ! Check if in nested interrupt
- andi $p0, $p0, #PSW_mskINTL
- bnez $p0, no_work_pending ! done with iret
- lwi $r1, [tsk+#TSK_TI_FLAGS]
- andi $p1, $r1, #_TIF_WORK_MASK
- bnez $p1, work_pending ! handle work_resched, sig_pend
-
-no_work_pending:
-#ifdef CONFIG_TRACE_IRQFLAGS
- lwi $p0, [$sp+(#IPSW_OFFSET)]
- andi $p0, $p0, #0x1
- la $r10, __trace_hardirqs_off
- la $r9, __trace_hardirqs_on
- cmovz $r9, $p0, $r10
- jral $r9
-#endif
- restore_user_regs ! return from iret
-
-
-/*
- * preemptive kernel
- */
-#ifdef CONFIG_PREEMPTION
-resume_kernel:
- gie_disable
- lwi $t0, [tsk+#TSK_TI_PREEMPT]
- bnez $t0, no_work_pending
-
- lwi $t0, [tsk+#TSK_TI_FLAGS]
- andi $p1, $t0, #_TIF_NEED_RESCHED
- beqz $p1, no_work_pending
-
- lwi $t0, [$sp+(#IPSW_OFFSET)] ! Interrupts off?
- andi $t0, $t0, #1
- beqz $t0, no_work_pending
-
- jal preempt_schedule_irq
- b no_work_pending
-#endif
-
-/*
- * This is how we return from a fork.
- */
-ENTRY(ret_from_fork)
- bal schedule_tail
- beqz $r6, 1f ! r6 stores fn for kernel thread
- move $r0, $r7 ! prepare kernel thread arg
- jral $r6
-1:
- lwi $r1, [tsk+#TSK_TI_FLAGS] ! check for syscall tracing
- andi $p1, $r1, #_TIF_WORK_SYSCALL_LEAVE ! are we tracing syscalls?
- beqz $p1, ret_slow_syscall
- move $r0, $sp
- bal syscall_trace_leave
- b ret_slow_syscall
diff --git a/arch/nds32/kernel/ex-scall.S b/arch/nds32/kernel/ex-scall.S
deleted file mode 100644
index 270050f1b7b1..000000000000
--- a/arch/nds32/kernel/ex-scall.S
+++ /dev/null
@@ -1,100 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <linux/linkage.h>
-#include <asm/unistd.h>
-#include <asm/assembler.h>
-#include <asm/nds32.h>
-#include <asm/asm-offsets.h>
-#include <asm/thread_info.h>
-#include <asm/current.h>
-
-/*
- * $r0 = previous task_struct,
- * $r1 = next task_struct,
- * previous and next are guaranteed not to be the same.
- */
-
-ENTRY(__switch_to)
-
- la $p0, __entry_task
- sw $r1, [$p0]
- addi $p1, $r0, #THREAD_CPU_CONTEXT
- smw.bi $r6, [$p1], $r14, #0xb ! push r6~r14, fp, lp, sp
- move $r25, $r1
-#if defined(CONFIG_FPU)
- call _switch_fpu
-#endif
- addi $r1, $r25, #THREAD_CPU_CONTEXT
- lmw.bi $r6, [$r1], $r14, #0xb ! pop r6~r14, fp, lp, sp
- ret
-
-
-#define tbl $r8
-
-/*
- * $r7 will be writen as syscall nr
- */
- .macro get_scno
- lwi $r7, [$sp + R15_OFFSET]
- swi $r7, [$sp + SYSCALLNO_OFFSET]
- .endm
-
- .macro updateipc
- addi $r17, $r13, #4 ! $r13 is $IPC
- swi $r17, [$sp + IPC_OFFSET]
- .endm
-
-ENTRY(eh_syscall)
- updateipc
-
- get_scno
- gie_enable
-
- lwi $p0, [tsk+#TSK_TI_FLAGS] ! check for syscall tracing
-
- andi $p1, $p0, #_TIF_WORK_SYSCALL_ENTRY ! are we tracing syscalls?
- bnez $p1, __sys_trace
-
- la $lp, ret_fast_syscall ! return address
-jmp_systbl:
- addi $p1, $r7, #-__NR_syscalls ! syscall number of syscall instruction is guarded by addembler
- bgez $p1, _SCNO_EXCEED ! call sys_* routine
- la tbl, sys_call_table ! load syscall table pointer
- slli $p1, $r7, #2
- add $p1, tbl, $p1
- lwi $p1, [$p1]
- jr $p1 ! no return
-
-_SCNO_EXCEED:
- ori $r0, $r7, #0
- ori $r1, $sp, #0
- b bad_syscall
-
-/*
- * This is the really slow path. We're going to be doing
- * context switches, and waiting for our parent to respond.
- */
-__sys_trace:
- move $r0, $sp
- bal syscall_trace_enter
- move $r7, $r0
- la $lp, __sys_trace_return ! return address
-
- addi $p1, $r7, #1
- beqz $p1, ret_slow_syscall ! fatal signal is pending
-
- addi $p1, $sp, #R0_OFFSET ! pointer to regs
- lmw.bi $r0, [$p1], $r5 ! have to reload $r0 - $r5
- b jmp_systbl
-
-__sys_trace_return:
- swi $r0, [$sp+#R0_OFFSET] ! T: save returned $r0
- move $r0, $sp ! set pt_regs for syscall_trace_leave
- bal syscall_trace_leave
- b ret_slow_syscall
-
-ENTRY(sys_rt_sigreturn_wrapper)
- addi $r0, $sp, #0
- b sys_rt_sigreturn
-ENDPROC(sys_rt_sigreturn_wrapper)
diff --git a/arch/nds32/kernel/fpu.c b/arch/nds32/kernel/fpu.c
deleted file mode 100644
index 701c09a668de..000000000000
--- a/arch/nds32/kernel/fpu.c
+++ /dev/null
@@ -1,266 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2018 Andes Technology Corporation
-
-#include <linux/sched.h>
-#include <linux/signal.h>
-#include <linux/sched/signal.h>
-#include <asm/processor.h>
-#include <asm/user.h>
-#include <asm/io.h>
-#include <asm/bitfield.h>
-#include <asm/fpu.h>
-
-const struct fpu_struct init_fpuregs = {
- .fd_regs = {[0 ... 31] = sNAN64},
- .fpcsr = FPCSR_INIT,
-#if IS_ENABLED(CONFIG_SUPPORT_DENORMAL_ARITHMETIC)
- .UDF_IEX_trap = 0
-#endif
-};
-
-void save_fpu(struct task_struct *tsk)
-{
- unsigned int fpcfg, fpcsr;
-
- enable_fpu();
- fpcfg = ((__nds32__fmfcfg() & FPCFG_mskFREG) >> FPCFG_offFREG);
- switch (fpcfg) {
- case SP32_DP32_reg:
- asm volatile ("fsdi $fd31, [%0+0xf8]\n\t"
- "fsdi $fd30, [%0+0xf0]\n\t"
- "fsdi $fd29, [%0+0xe8]\n\t"
- "fsdi $fd28, [%0+0xe0]\n\t"
- "fsdi $fd27, [%0+0xd8]\n\t"
- "fsdi $fd26, [%0+0xd0]\n\t"
- "fsdi $fd25, [%0+0xc8]\n\t"
- "fsdi $fd24, [%0+0xc0]\n\t"
- "fsdi $fd23, [%0+0xb8]\n\t"
- "fsdi $fd22, [%0+0xb0]\n\t"
- "fsdi $fd21, [%0+0xa8]\n\t"
- "fsdi $fd20, [%0+0xa0]\n\t"
- "fsdi $fd19, [%0+0x98]\n\t"
- "fsdi $fd18, [%0+0x90]\n\t"
- "fsdi $fd17, [%0+0x88]\n\t"
- "fsdi $fd16, [%0+0x80]\n\t"
- : /* no output */
- : "r" (&tsk->thread.fpu)
- : "memory");
- fallthrough;
- case SP32_DP16_reg:
- asm volatile ("fsdi $fd15, [%0+0x78]\n\t"
- "fsdi $fd14, [%0+0x70]\n\t"
- "fsdi $fd13, [%0+0x68]\n\t"
- "fsdi $fd12, [%0+0x60]\n\t"
- "fsdi $fd11, [%0+0x58]\n\t"
- "fsdi $fd10, [%0+0x50]\n\t"
- "fsdi $fd9, [%0+0x48]\n\t"
- "fsdi $fd8, [%0+0x40]\n\t"
- : /* no output */
- : "r" (&tsk->thread.fpu)
- : "memory");
- fallthrough;
- case SP16_DP8_reg:
- asm volatile ("fsdi $fd7, [%0+0x38]\n\t"
- "fsdi $fd6, [%0+0x30]\n\t"
- "fsdi $fd5, [%0+0x28]\n\t"
- "fsdi $fd4, [%0+0x20]\n\t"
- : /* no output */
- : "r" (&tsk->thread.fpu)
- : "memory");
- fallthrough;
- case SP8_DP4_reg:
- asm volatile ("fsdi $fd3, [%1+0x18]\n\t"
- "fsdi $fd2, [%1+0x10]\n\t"
- "fsdi $fd1, [%1+0x8]\n\t"
- "fsdi $fd0, [%1+0x0]\n\t"
- "fmfcsr %0\n\t"
- "swi %0, [%1+0x100]\n\t"
- : "=&r" (fpcsr)
- : "r"(&tsk->thread.fpu)
- : "memory");
- }
- disable_fpu();
-}
-
-void load_fpu(const struct fpu_struct *fpregs)
-{
- unsigned int fpcfg, fpcsr;
-
- enable_fpu();
- fpcfg = ((__nds32__fmfcfg() & FPCFG_mskFREG) >> FPCFG_offFREG);
- switch (fpcfg) {
- case SP32_DP32_reg:
- asm volatile ("fldi $fd31, [%0+0xf8]\n\t"
- "fldi $fd30, [%0+0xf0]\n\t"
- "fldi $fd29, [%0+0xe8]\n\t"
- "fldi $fd28, [%0+0xe0]\n\t"
- "fldi $fd27, [%0+0xd8]\n\t"
- "fldi $fd26, [%0+0xd0]\n\t"
- "fldi $fd25, [%0+0xc8]\n\t"
- "fldi $fd24, [%0+0xc0]\n\t"
- "fldi $fd23, [%0+0xb8]\n\t"
- "fldi $fd22, [%0+0xb0]\n\t"
- "fldi $fd21, [%0+0xa8]\n\t"
- "fldi $fd20, [%0+0xa0]\n\t"
- "fldi $fd19, [%0+0x98]\n\t"
- "fldi $fd18, [%0+0x90]\n\t"
- "fldi $fd17, [%0+0x88]\n\t"
- "fldi $fd16, [%0+0x80]\n\t"
- : /* no output */
- : "r" (fpregs));
- fallthrough;
- case SP32_DP16_reg:
- asm volatile ("fldi $fd15, [%0+0x78]\n\t"
- "fldi $fd14, [%0+0x70]\n\t"
- "fldi $fd13, [%0+0x68]\n\t"
- "fldi $fd12, [%0+0x60]\n\t"
- "fldi $fd11, [%0+0x58]\n\t"
- "fldi $fd10, [%0+0x50]\n\t"
- "fldi $fd9, [%0+0x48]\n\t"
- "fldi $fd8, [%0+0x40]\n\t"
- : /* no output */
- : "r" (fpregs));
- fallthrough;
- case SP16_DP8_reg:
- asm volatile ("fldi $fd7, [%0+0x38]\n\t"
- "fldi $fd6, [%0+0x30]\n\t"
- "fldi $fd5, [%0+0x28]\n\t"
- "fldi $fd4, [%0+0x20]\n\t"
- : /* no output */
- : "r" (fpregs));
- fallthrough;
- case SP8_DP4_reg:
- asm volatile ("fldi $fd3, [%1+0x18]\n\t"
- "fldi $fd2, [%1+0x10]\n\t"
- "fldi $fd1, [%1+0x8]\n\t"
- "fldi $fd0, [%1+0x0]\n\t"
- "lwi %0, [%1+0x100]\n\t"
- "fmtcsr %0\n\t":"=&r" (fpcsr)
- : "r"(fpregs));
- }
- disable_fpu();
-}
-void store_fpu_for_suspend(void)
-{
-#ifdef CONFIG_LAZY_FPU
- if (last_task_used_math != NULL)
- save_fpu(last_task_used_math);
- last_task_used_math = NULL;
-#else
- if (!used_math())
- return;
- unlazy_fpu(current);
-#endif
- clear_fpu(task_pt_regs(current));
-}
-inline void do_fpu_context_switch(struct pt_regs *regs)
-{
- /* Enable to use FPU. */
-
- if (!user_mode(regs)) {
- pr_err("BUG: FPU is used in kernel mode.\n");
- BUG();
- return;
- }
-
- enable_ptreg_fpu(regs);
-#ifdef CONFIG_LAZY_FPU //Lazy FPU is used
- if (last_task_used_math == current)
- return;
- if (last_task_used_math != NULL)
- /* Other processes fpu state, save away */
- save_fpu(last_task_used_math);
- last_task_used_math = current;
-#endif
- if (used_math()) {
- load_fpu(¤t->thread.fpu);
- } else {
- /* First time FPU user. */
- load_fpu(&init_fpuregs);
-#if IS_ENABLED(CONFIG_SUPPORT_DENORMAL_ARITHMETIC)
- current->thread.fpu.UDF_IEX_trap = init_fpuregs.UDF_IEX_trap;
-#endif
- set_used_math();
- }
-
-}
-
-inline void fill_sigfpe_signo(unsigned int fpcsr, int *signo)
-{
- if (fpcsr & FPCSR_mskOVFT)
- *signo = FPE_FLTOVF;
-#ifndef CONFIG_SUPPORT_DENORMAL_ARITHMETIC
- else if (fpcsr & FPCSR_mskUDFT)
- *signo = FPE_FLTUND;
-#endif
- else if (fpcsr & FPCSR_mskIVOT)
- *signo = FPE_FLTINV;
- else if (fpcsr & FPCSR_mskDBZT)
- *signo = FPE_FLTDIV;
- else if (fpcsr & FPCSR_mskIEXT)
- *signo = FPE_FLTRES;
-}
-
-inline void handle_fpu_exception(struct pt_regs *regs)
-{
- unsigned int fpcsr;
- int si_code = 0, si_signo = SIGFPE;
-#if IS_ENABLED(CONFIG_SUPPORT_DENORMAL_ARITHMETIC)
- unsigned long redo_except = FPCSR_mskDNIT|FPCSR_mskUDFT|FPCSR_mskIEXT;
-#else
- unsigned long redo_except = FPCSR_mskDNIT;
-#endif
-
- lose_fpu();
- fpcsr = current->thread.fpu.fpcsr;
-
- if (fpcsr & redo_except) {
- si_signo = do_fpuemu(regs, ¤t->thread.fpu);
- fpcsr = current->thread.fpu.fpcsr;
- if (!si_signo) {
- current->thread.fpu.fpcsr &= ~(redo_except);
- goto done;
- }
- } else if (fpcsr & FPCSR_mskRIT) {
- if (!user_mode(regs))
- make_task_dead(SIGILL);
- si_signo = SIGILL;
- }
-
- switch (si_signo) {
- case SIGFPE:
- fill_sigfpe_signo(fpcsr, &si_code);
- break;
- case SIGILL:
- show_regs(regs);
- si_code = ILL_COPROC;
- break;
- case SIGBUS:
- si_code = BUS_ADRERR;
- break;
- default:
- break;
- }
-
- force_sig_fault(si_signo, si_code,
- (void __user *)instruction_pointer(regs));
-done:
- own_fpu();
-}
-
-bool do_fpu_exception(unsigned int subtype, struct pt_regs *regs)
-{
- int done = true;
- /* Coprocessor disabled exception */
- if (subtype == FPU_DISABLE_EXCEPTION) {
- preempt_disable();
- do_fpu_context_switch(regs);
- preempt_enable();
- }
- /* Coprocessor exception such as underflow and overflow */
- else if (subtype == FPU_EXCEPTION)
- handle_fpu_exception(regs);
- else
- done = false;
- return done;
-}
diff --git a/arch/nds32/kernel/ftrace.c b/arch/nds32/kernel/ftrace.c
deleted file mode 100644
index 711bc8cd186d..000000000000
--- a/arch/nds32/kernel/ftrace.c
+++ /dev/null
@@ -1,278 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-
-#include <linux/ftrace.h>
-#include <linux/uaccess.h>
-#include <asm/cacheflush.h>
-
-#ifndef CONFIG_DYNAMIC_FTRACE
-extern void (*ftrace_trace_function)(unsigned long, unsigned long,
- struct ftrace_ops*, struct ftrace_regs*);
-extern void ftrace_graph_caller(void);
-
-noinline void __naked ftrace_stub(unsigned long ip, unsigned long parent_ip,
- struct ftrace_ops *op, struct ftrace_regs *fregs)
-{
- __asm__ (""); /* avoid to optimize as pure function */
-}
-
-noinline void _mcount(unsigned long parent_ip)
-{
- /* save all state by the compiler prologue */
-
- unsigned long ip = (unsigned long)__builtin_return_address(0);
-
- if (ftrace_trace_function != ftrace_stub)
- ftrace_trace_function(ip - MCOUNT_INSN_SIZE, parent_ip,
- NULL, NULL);
-
-#ifdef CONFIG_FUNCTION_GRAPH_TRACER
- if (ftrace_graph_return != (trace_func_graph_ret_t)ftrace_stub
- || ftrace_graph_entry != ftrace_graph_entry_stub)
- ftrace_graph_caller();
-#endif
-
- /* restore all state by the compiler epilogue */
-}
-EXPORT_SYMBOL(_mcount);
-
-#else /* CONFIG_DYNAMIC_FTRACE */
-
-noinline void __naked ftrace_stub(unsigned long ip, unsigned long parent_ip,
- struct ftrace_ops *op, struct ftrace_regs *fregs)
-{
- __asm__ (""); /* avoid to optimize as pure function */
-}
-
-noinline void __naked _mcount(unsigned long parent_ip)
-{
- __asm__ (""); /* avoid to optimize as pure function */
-}
-EXPORT_SYMBOL(_mcount);
-
-#define XSTR(s) STR(s)
-#define STR(s) #s
-void _ftrace_caller(unsigned long parent_ip)
-{
- /* save all state needed by the compiler prologue */
-
- /*
- * prepare arguments for real tracing function
- * first arg : __builtin_return_address(0) - MCOUNT_INSN_SIZE
- * second arg : parent_ip
- */
- __asm__ __volatile__ (
- "move $r1, %0 \n\t"
- "addi $r0, %1, #-" XSTR(MCOUNT_INSN_SIZE) "\n\t"
- :
- : "r" (parent_ip), "r" (__builtin_return_address(0)));
-
- /* a placeholder for the call to a real tracing function */
- __asm__ __volatile__ (
- "ftrace_call: \n\t"
- "nop \n\t"
- "nop \n\t"
- "nop \n\t");
-
-#ifdef CONFIG_FUNCTION_GRAPH_TRACER
- /* a placeholder for the call to ftrace_graph_caller */
- __asm__ __volatile__ (
- "ftrace_graph_call: \n\t"
- "nop \n\t"
- "nop \n\t"
- "nop \n\t");
-#endif
- /* restore all state needed by the compiler epilogue */
-}
-
-static unsigned long gen_sethi_insn(unsigned long addr)
-{
- unsigned long opcode = 0x46000000;
- unsigned long imm = addr >> 12;
- unsigned long rt_num = 0xf << 20;
-
- return ENDIAN_CONVERT(opcode | rt_num | imm);
-}
-
-static unsigned long gen_ori_insn(unsigned long addr)
-{
- unsigned long opcode = 0x58000000;
- unsigned long imm = addr & 0x0000fff;
- unsigned long rt_num = 0xf << 20;
- unsigned long ra_num = 0xf << 15;
-
- return ENDIAN_CONVERT(opcode | rt_num | ra_num | imm);
-}
-
-static unsigned long gen_jral_insn(unsigned long addr)
-{
- unsigned long opcode = 0x4a000001;
- unsigned long rt_num = 0x1e << 20;
- unsigned long rb_num = 0xf << 10;
-
- return ENDIAN_CONVERT(opcode | rt_num | rb_num);
-}
-
-static void ftrace_gen_call_insn(unsigned long *call_insns,
- unsigned long addr)
-{
- call_insns[0] = gen_sethi_insn(addr); /* sethi $r15, imm20u */
- call_insns[1] = gen_ori_insn(addr); /* ori $r15, $r15, imm15u */
- call_insns[2] = gen_jral_insn(addr); /* jral $lp, $r15 */
-}
-
-static int __ftrace_modify_code(unsigned long pc, unsigned long *old_insn,
- unsigned long *new_insn, bool validate)
-{
- unsigned long orig_insn[3];
-
- if (validate) {
- if (copy_from_kernel_nofault(orig_insn, (void *)pc,
- MCOUNT_INSN_SIZE))
- return -EFAULT;
- if (memcmp(orig_insn, old_insn, MCOUNT_INSN_SIZE))
- return -EINVAL;
- }
-
- if (copy_to_kernel_nofault((void *)pc, new_insn, MCOUNT_INSN_SIZE))
- return -EPERM;
-
- return 0;
-}
-
-static int ftrace_modify_code(unsigned long pc, unsigned long *old_insn,
- unsigned long *new_insn, bool validate)
-{
- int ret;
-
- ret = __ftrace_modify_code(pc, old_insn, new_insn, validate);
- if (ret)
- return ret;
-
- flush_icache_range(pc, pc + MCOUNT_INSN_SIZE);
-
- return ret;
-}
-
-int ftrace_update_ftrace_func(ftrace_func_t func)
-{
- unsigned long pc = (unsigned long)&ftrace_call;
- unsigned long old_insn[3] = {INSN_NOP, INSN_NOP, INSN_NOP};
- unsigned long new_insn[3] = {INSN_NOP, INSN_NOP, INSN_NOP};
-
- if (func != ftrace_stub)
- ftrace_gen_call_insn(new_insn, (unsigned long)func);
-
- return ftrace_modify_code(pc, old_insn, new_insn, false);
-}
-
-int ftrace_make_call(struct dyn_ftrace *rec, unsigned long addr)
-{
- unsigned long pc = rec->ip;
- unsigned long nop_insn[3] = {INSN_NOP, INSN_NOP, INSN_NOP};
- unsigned long call_insn[3] = {INSN_NOP, INSN_NOP, INSN_NOP};
-
- ftrace_gen_call_insn(call_insn, addr);
-
- return ftrace_modify_code(pc, nop_insn, call_insn, true);
-}
-
-int ftrace_make_nop(struct module *mod, struct dyn_ftrace *rec,
- unsigned long addr)
-{
- unsigned long pc = rec->ip;
- unsigned long nop_insn[3] = {INSN_NOP, INSN_NOP, INSN_NOP};
- unsigned long call_insn[3] = {INSN_NOP, INSN_NOP, INSN_NOP};
-
- ftrace_gen_call_insn(call_insn, addr);
-
- return ftrace_modify_code(pc, call_insn, nop_insn, true);
-}
-#endif /* CONFIG_DYNAMIC_FTRACE */
-
-#ifdef CONFIG_FUNCTION_GRAPH_TRACER
-void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr,
- unsigned long frame_pointer)
-{
- unsigned long return_hooker = (unsigned long)&return_to_handler;
- unsigned long old;
-
- if (unlikely(atomic_read(¤t->tracing_graph_pause)))
- return;
-
- old = *parent;
-
- if (!function_graph_enter(old, self_addr, frame_pointer, NULL))
- *parent = return_hooker;
-}
-
-noinline void ftrace_graph_caller(void)
-{
- unsigned long *parent_ip =
- (unsigned long *)(__builtin_frame_address(2) - 4);
-
- unsigned long selfpc =
- (unsigned long)(__builtin_return_address(1) - MCOUNT_INSN_SIZE);
-
- unsigned long frame_pointer =
- (unsigned long)__builtin_frame_address(3);
-
- prepare_ftrace_return(parent_ip, selfpc, frame_pointer);
-}
-
-extern unsigned long ftrace_return_to_handler(unsigned long frame_pointer);
-void __naked return_to_handler(void)
-{
- __asm__ __volatile__ (
- /* save state needed by the ABI */
- "smw.adm $r0,[$sp],$r1,#0x0 \n\t"
-
- /* get original return address */
- "move $r0, $fp \n\t"
- "bal ftrace_return_to_handler\n\t"
- "move $lp, $r0 \n\t"
-
- /* restore state needed by the ABI */
- "lmw.bim $r0,[$sp],$r1,#0x0 \n\t");
-}
-
-#ifdef CONFIG_DYNAMIC_FTRACE
-extern unsigned long ftrace_graph_call;
-
-static int ftrace_modify_graph_caller(bool enable)
-{
- unsigned long pc = (unsigned long)&ftrace_graph_call;
- unsigned long nop_insn[3] = {INSN_NOP, INSN_NOP, INSN_NOP};
- unsigned long call_insn[3] = {INSN_NOP, INSN_NOP, INSN_NOP};
-
- ftrace_gen_call_insn(call_insn, (unsigned long)ftrace_graph_caller);
-
- if (enable)
- return ftrace_modify_code(pc, nop_insn, call_insn, true);
- else
- return ftrace_modify_code(pc, call_insn, nop_insn, true);
-}
-
-int ftrace_enable_ftrace_graph_caller(void)
-{
- return ftrace_modify_graph_caller(true);
-}
-
-int ftrace_disable_ftrace_graph_caller(void)
-{
- return ftrace_modify_graph_caller(false);
-}
-#endif /* CONFIG_DYNAMIC_FTRACE */
-
-#endif /* CONFIG_FUNCTION_GRAPH_TRACER */
-
-
-#ifdef CONFIG_TRACE_IRQFLAGS
-noinline void __trace_hardirqs_off(void)
-{
- trace_hardirqs_off();
-}
-noinline void __trace_hardirqs_on(void)
-{
- trace_hardirqs_on();
-}
-#endif /* CONFIG_TRACE_IRQFLAGS */
diff --git a/arch/nds32/kernel/head.S b/arch/nds32/kernel/head.S
deleted file mode 100644
index 7347f00451a9..000000000000
--- a/arch/nds32/kernel/head.S
+++ /dev/null
@@ -1,197 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <linux/linkage.h>
-#include <linux/init.h>
-#include <linux/pgtable.h>
-#include <asm/ptrace.h>
-#include <asm/asm-offsets.h>
-#include <asm/page.h>
-#include <linux/sizes.h>
-#include <asm/thread_info.h>
-
-#ifdef CONFIG_CPU_BIG_ENDIAN
-#define OF_DT_MAGIC 0xd00dfeed
-#else
-#define OF_DT_MAGIC 0xedfe0dd0
-#endif
-
- .globl swapper_pg_dir
- .equ swapper_pg_dir, TEXTADDR - 0x4000
-
-/*
- * Kernel startup entry point.
- */
- .section ".head.text", "ax"
- .type _stext, %function
-ENTRY(_stext)
- setgie.d ! Disable interrupt
- isb
-/*
- * Disable I/D-cache and enable it at a proper time
- */
- mfsr $r0, $mr8
- li $r1, #~(CACHE_CTL_mskIC_EN|CACHE_CTL_mskDC_EN)
- and $r0, $r0, $r1
- mtsr $r0, $mr8
-
-/*
- * Process device tree blob
- */
- andi $r0,$r2,#0x3
- li $r10, 0
- bne $r0, $r10, _nodtb
- lwi $r0, [$r2]
- li $r1, OF_DT_MAGIC
- bne $r0, $r1, _nodtb
- move $r10, $r2
-_nodtb:
-
-/*
- * Create a temporary mapping area for booting, before start_kernel
- */
- sethi $r4, hi20(swapper_pg_dir)
- li $p0, (PAGE_OFFSET - PHYS_OFFSET)
- sub $r4, $r4, $p0
- tlbop FlushAll ! invalidate TLB\n"
- isb
- mtsr $r4, $L1_PPTB ! load page table pointer\n"
-
-#ifdef CONFIG_CPU_DCACHE_DISABLE
- #define MMU_CTL_NTCC MMU_CTL_CACHEABLE_NON
-#else
- #ifdef CONFIG_CPU_DCACHE_WRITETHROUGH
- #define MMU_CTL_NTCC MMU_CTL_CACHEABLE_WT
- #else
- #define MMU_CTL_NTCC MMU_CTL_CACHEABLE_WB
- #endif
-#endif
-
-/* set NTC cacheability, mutliple page size in use */
- mfsr $r3, $MMU_CTL
-#if CONFIG_MEMORY_START >= 0xc0000000
- ori $r3, $r3, (MMU_CTL_NTCC << MMU_CTL_offNTC3)
-#elif CONFIG_MEMORY_START >= 0x80000000
- ori $r3, $r3, (MMU_CTL_NTCC << MMU_CTL_offNTC2)
-#elif CONFIG_MEMORY_START >= 0x40000000
- ori $r3, $r3, (MMU_CTL_NTCC << MMU_CTL_offNTC1)
-#else
- ori $r3, $r3, (MMU_CTL_NTCC << MMU_CTL_offNTC0)
-#endif
-
-#ifdef CONFIG_ANDES_PAGE_SIZE_4KB
- ori $r3, $r3, #(MMU_CTL_mskMPZIU)
-#else
- ori $r3, $r3, #(MMU_CTL_mskMPZIU|MMU_CTL_D8KB)
-#endif
-#ifdef CONFIG_HW_SUPPORT_UNALIGNMENT_ACCESS
- li $r0, #MMU_CTL_UNA
- or $r3, $r3, $r0
-#endif
- mtsr $r3, $MMU_CTL
- isb
-
-/* set page size and size of kernel image */
- mfsr $r0, $MMU_CFG
- srli $r3, $r0, MMU_CFG_offfEPSZ
- zeb $r3, $r3
- bnez $r3, _extra_page_size_support
-#ifdef CONFIG_ANDES_PAGE_SIZE_4KB
- li $r5, #SZ_4K ! Use 4KB page size
-#else
- li $r5, #SZ_8K ! Use 8KB page size
- li $r3, #1
-#endif
- mtsr $r3, $TLB_MISC
- b _image_size_check
-
-_extra_page_size_support: ! Use epzs pages size
- clz $r6, $r3
- subri $r2, $r6, #31
- li $r3, #1
- sll $r3, $r3, $r2
- /* MMU_CFG.EPSZ value -> meaning */
- mul $r5, $r3, $r3
- slli $r5, $r5, #14
- /* MMU_CFG.EPSZ -> TLB_MISC.ACC_PSZ */
- addi $r3, $r2, #0x2
- mtsr $r3, $TLB_MISC
-
-_image_size_check:
- /* calculate the image maximum size accepted by TLB config */
- andi $r6, $r0, MMU_CFG_mskTBW
- andi $r0, $r0, MMU_CFG_mskTBS
- srli $r6, $r6, MMU_CFG_offTBW
- srli $r0, $r0, MMU_CFG_offTBS
- addi $r6, $r6, #0x1 ! MMU_CFG.TBW value -> meaning
- addi $r0, $r0, #0x2 ! MMU_CFG.TBS value -> meaning
- sll $r0, $r6, $r0 ! entries = k-way * n-set
- mul $r6, $r0, $r5 ! max size = entries * page size
- /* check kernel image size */
- la $r3, (_end - PAGE_OFFSET)
- bgt $r3, $r6, __error
-
- li $r2, #(PHYS_OFFSET + TLB_DATA_kernel_text_attr)
- li $r3, PAGE_OFFSET
- add $r6, $r6, $r3
-
-_tlb:
- mtsr $r3, $TLB_VPN
- dsb
- tlbop $r2, RWR
- isb
- add $r3, $r3, $r5
- add $r2, $r2, $r5
- bgt $r6, $r3, _tlb
- mfsr $r3, $TLB_MISC ! setup access page size
- li $r2, #~0xf
- and $r3, $r3, $r2
-#ifdef CONFIG_ANDES_PAGE_SIZE_8KB
- ori $r3, $r3, #0x1
-#endif
- mtsr $r3, $TLB_MISC
-
- mfsr $r0, $MISC_CTL ! Enable BTB, RTP, shadow sp, and HW_PRE
- ori $r0, $r0, #MISC_init
- mtsr $r0, $MISC_CTL
-
- mfsr $p1, $PSW
- li $r15, #~PSW_clr ! clear WBNA|DME|IME|DT|IT|POM|INTL|GIE
- and $p1, $p1, $r15
- ori $p1, $p1, #PSW_init
- mtsr $p1, $IPSW ! when iret, it will automatically enable MMU
- la $lp, __mmap_switched
- mtsr $lp, $IPC
- iret
- nop
-
- .type __switch_data, %object
-__switch_data:
- .long __bss_start ! $r6
- .long _end ! $r7
- .long __atags_pointer ! $atag_pointer
- .long init_task ! $r9, move to $r25
- .long init_thread_union + THREAD_SIZE ! $sp
-
-
-/*
- * The following fragment of code is executed with the MMU on in MMU mode,
- * and uses absolute addresses; this is not position independent.
- */
- .align
- .type __mmap_switched, %function
-__mmap_switched:
- la $r3, __switch_data
- lmw.bim $r6, [$r3], $r9, #0b0001
- move $r25, $r9
- move $fp, #0 ! Clear BSS (and zero $fp)
- beq $r7, $r6, _RRT
-1: swi.bi $fp, [$r6], #4
- bne $r7, $r6, 1b
- swi $r10, [$r8]
-
-_RRT:
- b start_kernel
-
-__error:
- b __error
diff --git a/arch/nds32/kernel/irq.c b/arch/nds32/kernel/irq.c
deleted file mode 100644
index 6ff5a672be27..000000000000
--- a/arch/nds32/kernel/irq.c
+++ /dev/null
@@ -1,9 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <linux/irqchip.h>
-
-void __init init_IRQ(void)
-{
- irqchip_init();
-}
diff --git a/arch/nds32/kernel/module.c b/arch/nds32/kernel/module.c
deleted file mode 100644
index 3897fd14a21d..000000000000
--- a/arch/nds32/kernel/module.c
+++ /dev/null
@@ -1,278 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <linux/module.h>
-#include <linux/elf.h>
-#include <linux/vmalloc.h>
-#include <linux/moduleloader.h>
-#include <linux/pgtable.h>
-
-void *module_alloc(unsigned long size)
-{
- return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
- GFP_KERNEL, PAGE_KERNEL, 0, NUMA_NO_NODE,
- __builtin_return_address(0));
-}
-
-void module_free(struct module *module, void *region)
-{
- vfree(region);
-}
-
-int module_frob_arch_sections(Elf_Ehdr * hdr,
- Elf_Shdr * sechdrs,
- char *secstrings, struct module *mod)
-{
- return 0;
-}
-
-void do_reloc16(unsigned int val, unsigned int *loc, unsigned int val_mask,
- unsigned int val_shift, unsigned int loc_mask,
- unsigned int partial_in_place, unsigned int swap)
-{
- unsigned int tmp = 0, tmp2 = 0;
-
- __asm__ __volatile__("\tlhi.bi\t%0, [%2], 0\n"
- "\tbeqz\t%3, 1f\n"
- "\twsbh\t%0, %1\n"
- "1:\n":"=r"(tmp):"0"(tmp), "r"(loc), "r"(swap)
- );
-
- tmp2 = tmp & loc_mask;
- if (partial_in_place) {
- tmp &= (~loc_mask);
- tmp =
- tmp2 | ((tmp + ((val & val_mask) >> val_shift)) & val_mask);
- } else {
- tmp = tmp2 | ((val & val_mask) >> val_shift);
- }
-
- __asm__ __volatile__("\tbeqz\t%3, 2f\n"
- "\twsbh\t%0, %1\n"
- "2:\n"
- "\tshi.bi\t%0, [%2], 0\n":"=r"(tmp):"0"(tmp),
- "r"(loc), "r"(swap)
- );
-}
-
-void do_reloc32(unsigned int val, unsigned int *loc, unsigned int val_mask,
- unsigned int val_shift, unsigned int loc_mask,
- unsigned int partial_in_place, unsigned int swap)
-{
- unsigned int tmp = 0, tmp2 = 0;
-
- __asm__ __volatile__("\tlmw.bi\t%0, [%2], %0, 0\n"
- "\tbeqz\t%3, 1f\n"
- "\twsbh\t%0, %1\n"
- "\trotri\t%0, %1, 16\n"
- "1:\n":"=r"(tmp):"0"(tmp), "r"(loc), "r"(swap)
- );
-
- tmp2 = tmp & loc_mask;
- if (partial_in_place) {
- tmp &= (~loc_mask);
- tmp =
- tmp2 | ((tmp + ((val & val_mask) >> val_shift)) & val_mask);
- } else {
- tmp = tmp2 | ((val & val_mask) >> val_shift);
- }
-
- __asm__ __volatile__("\tbeqz\t%3, 2f\n"
- "\twsbh\t%0, %1\n"
- "\trotri\t%0, %1, 16\n"
- "2:\n"
- "\tsmw.bi\t%0, [%2], %0, 0\n":"=r"(tmp):"0"(tmp),
- "r"(loc), "r"(swap)
- );
-}
-
-static inline int exceed_limit(int offset, unsigned int val_mask,
- struct module *module, Elf32_Rela * rel,
- unsigned int relindex, unsigned int reloc_order)
-{
- int abs_off = offset < 0 ? ~offset : offset;
-
- if (abs_off & (~val_mask)) {
- pr_err("\n%s: relocation type %d out of range.\n"
- "please rebuild the kernel module with gcc option \"-Wa,-mno-small-text\".\n",
- module->name, ELF32_R_TYPE(rel->r_info));
- pr_err("section %d reloc %d offset 0x%x relative 0x%x.\n",
- relindex, reloc_order, rel->r_offset, offset);
- return true;
- }
- return false;
-}
-
-#ifdef __NDS32_EL__
-#define NEED_SWAP 1
-#else
-#define NEED_SWAP 0
-#endif
-
-int
-apply_relocate_add(Elf32_Shdr * sechdrs, const char *strtab,
- unsigned int symindex, unsigned int relindex,
- struct module *module)
-{
- Elf32_Shdr *symsec = sechdrs + symindex;
- Elf32_Shdr *relsec = sechdrs + relindex;
- Elf32_Shdr *dstsec = sechdrs + relsec->sh_info;
- Elf32_Rela *rel = (void *)relsec->sh_addr;
- unsigned int i;
-
- for (i = 0; i < relsec->sh_size / sizeof(Elf32_Rela); i++, rel++) {
- Elf32_Addr *loc;
- Elf32_Sym *sym;
- Elf32_Addr v;
- s32 offset;
-
- offset = ELF32_R_SYM(rel->r_info);
- if (offset < 0
- || offset > (symsec->sh_size / sizeof(Elf32_Sym))) {
- pr_err("%s: bad relocation\n", module->name);
- pr_err("section %d reloc %d\n", relindex, i);
- return -ENOEXEC;
- }
-
- sym = ((Elf32_Sym *) symsec->sh_addr) + offset;
-
- if (rel->r_offset < 0
- || rel->r_offset > dstsec->sh_size - sizeof(u16)) {
- pr_err("%s: out of bounds relocation\n", module->name);
- pr_err("section %d reloc %d offset 0x%0x size %d\n",
- relindex, i, rel->r_offset, dstsec->sh_size);
- return -ENOEXEC;
- }
-
- loc = (Elf32_Addr *) (dstsec->sh_addr + rel->r_offset);
- v = sym->st_value + rel->r_addend;
-
- switch (ELF32_R_TYPE(rel->r_info)) {
- case R_NDS32_NONE:
- case R_NDS32_INSN16:
- case R_NDS32_LABEL:
- case R_NDS32_LONGCALL1:
- case R_NDS32_LONGCALL2:
- case R_NDS32_LONGCALL3:
- case R_NDS32_LONGCALL4:
- case R_NDS32_LONGJUMP1:
- case R_NDS32_LONGJUMP2:
- case R_NDS32_LONGJUMP3:
- case R_NDS32_9_FIXED_RELA:
- case R_NDS32_15_FIXED_RELA:
- case R_NDS32_17_FIXED_RELA:
- case R_NDS32_25_FIXED_RELA:
- case R_NDS32_LOADSTORE:
- case R_NDS32_DWARF2_OP1_RELA:
- case R_NDS32_DWARF2_OP2_RELA:
- case R_NDS32_DWARF2_LEB_RELA:
- case R_NDS32_RELA_NOP_MIX ... R_NDS32_RELA_NOP_MAX:
- break;
-
- case R_NDS32_32_RELA:
- do_reloc32(v, loc, 0xffffffff, 0, 0, 0, 0);
- break;
-
- case R_NDS32_HI20_RELA:
- do_reloc32(v, loc, 0xfffff000, 12, 0xfff00000, 0,
- NEED_SWAP);
- break;
-
- case R_NDS32_LO12S3_RELA:
- do_reloc32(v, loc, 0x00000fff, 3, 0xfffff000, 0,
- NEED_SWAP);
- break;
-
- case R_NDS32_LO12S2_RELA:
- do_reloc32(v, loc, 0x00000fff, 2, 0xfffff000, 0,
- NEED_SWAP);
- break;
-
- case R_NDS32_LO12S1_RELA:
- do_reloc32(v, loc, 0x00000fff, 1, 0xfffff000, 0,
- NEED_SWAP);
- break;
-
- case R_NDS32_LO12S0_RELA:
- case R_NDS32_LO12S0_ORI_RELA:
- do_reloc32(v, loc, 0x00000fff, 0, 0xfffff000, 0,
- NEED_SWAP);
- break;
-
- case R_NDS32_9_PCREL_RELA:
- if (exceed_limit
- ((v - (Elf32_Addr) loc), 0x000000ff, module, rel,
- relindex, i))
- return -ENOEXEC;
- do_reloc16(v - (Elf32_Addr) loc, loc, 0x000001ff, 1,
- 0xffffff00, 0, NEED_SWAP);
- break;
-
- case R_NDS32_15_PCREL_RELA:
- if (exceed_limit
- ((v - (Elf32_Addr) loc), 0x00003fff, module, rel,
- relindex, i))
- return -ENOEXEC;
- do_reloc32(v - (Elf32_Addr) loc, loc, 0x00007fff, 1,
- 0xffffc000, 0, NEED_SWAP);
- break;
-
- case R_NDS32_17_PCREL_RELA:
- if (exceed_limit
- ((v - (Elf32_Addr) loc), 0x0000ffff, module, rel,
- relindex, i))
- return -ENOEXEC;
- do_reloc32(v - (Elf32_Addr) loc, loc, 0x0001ffff, 1,
- 0xffff0000, 0, NEED_SWAP);
- break;
-
- case R_NDS32_25_PCREL_RELA:
- if (exceed_limit
- ((v - (Elf32_Addr) loc), 0x00ffffff, module, rel,
- relindex, i))
- return -ENOEXEC;
- do_reloc32(v - (Elf32_Addr) loc, loc, 0x01ffffff, 1,
- 0xff000000, 0, NEED_SWAP);
- break;
- case R_NDS32_WORD_9_PCREL_RELA:
- if (exceed_limit
- ((v - (Elf32_Addr) loc), 0x000000ff, module, rel,
- relindex, i))
- return -ENOEXEC;
- do_reloc32(v - (Elf32_Addr) loc, loc, 0x000001ff, 1,
- 0xffffff00, 0, NEED_SWAP);
- break;
-
- case R_NDS32_SDA15S3_RELA:
- case R_NDS32_SDA15S2_RELA:
- case R_NDS32_SDA15S1_RELA:
- case R_NDS32_SDA15S0_RELA:
- pr_err("%s: unsupported relocation type %d.\n",
- module->name, ELF32_R_TYPE(rel->r_info));
- pr_err
- ("Small data section access doesn't work in the kernel space; "
- "please rebuild the kernel module with gcc option -mcmodel=large.\n");
- pr_err("section %d reloc %d offset 0x%x size %d\n",
- relindex, i, rel->r_offset, dstsec->sh_size);
- break;
-
- default:
- pr_err("%s: unsupported relocation type %d.\n",
- module->name, ELF32_R_TYPE(rel->r_info));
- pr_err("section %d reloc %d offset 0x%x size %d\n",
- relindex, i, rel->r_offset, dstsec->sh_size);
- }
- }
- return 0;
-}
-
-int
-module_finalize(const Elf32_Ehdr * hdr, const Elf_Shdr * sechdrs,
- struct module *module)
-{
- return 0;
-}
-
-void module_arch_cleanup(struct module *mod)
-{
-}
diff --git a/arch/nds32/kernel/nds32_ksyms.c b/arch/nds32/kernel/nds32_ksyms.c
deleted file mode 100644
index 20719e42ae36..000000000000
--- a/arch/nds32/kernel/nds32_ksyms.c
+++ /dev/null
@@ -1,25 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <linux/module.h>
-#include <linux/string.h>
-#include <linux/delay.h>
-#include <linux/in6.h>
-#include <linux/syscalls.h>
-#include <linux/uaccess.h>
-
-#include <asm/checksum.h>
-#include <asm/io.h>
-#include <asm/ftrace.h>
-#include <asm/proc-fns.h>
-
-/* mem functions */
-EXPORT_SYMBOL(memset);
-EXPORT_SYMBOL(memcpy);
-EXPORT_SYMBOL(memmove);
-EXPORT_SYMBOL(memzero);
-
-/* user mem (segment) */
-EXPORT_SYMBOL(__arch_copy_from_user);
-EXPORT_SYMBOL(__arch_copy_to_user);
-EXPORT_SYMBOL(__arch_clear_user);
diff --git a/arch/nds32/kernel/perf_event_cpu.c b/arch/nds32/kernel/perf_event_cpu.c
deleted file mode 100644
index a78a879e7ef1..000000000000
--- a/arch/nds32/kernel/perf_event_cpu.c
+++ /dev/null
@@ -1,1500 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Copyright (C) 2008-2017 Andes Technology Corporation
- *
- * Reference ARMv7: Jean Pihet <jpihet@...sta.com>
- * 2010 (c) MontaVista Software, LLC.
- */
-
-#include <linux/perf_event.h>
-#include <linux/bitmap.h>
-#include <linux/export.h>
-#include <linux/kernel.h>
-#include <linux/of.h>
-#include <linux/platform_device.h>
-#include <linux/slab.h>
-#include <linux/spinlock.h>
-#include <linux/pm_runtime.h>
-#include <linux/ftrace.h>
-#include <linux/uaccess.h>
-#include <linux/sched/clock.h>
-#include <linux/percpu-defs.h>
-
-#include <asm/pmu.h>
-#include <asm/irq_regs.h>
-#include <asm/nds32.h>
-#include <asm/stacktrace.h>
-#include <asm/perf_event.h>
-#include <nds32_intrinsic.h>
-
-/* Set at runtime when we know what CPU type we are. */
-static struct nds32_pmu *cpu_pmu;
-
-static DEFINE_PER_CPU(struct pmu_hw_events, cpu_hw_events);
-static void nds32_pmu_start(struct nds32_pmu *cpu_pmu);
-static void nds32_pmu_stop(struct nds32_pmu *cpu_pmu);
-static struct platform_device_id cpu_pmu_plat_device_ids[] = {
- {.name = "nds32-pfm"},
- {},
-};
-
-static int nds32_pmu_map_cache_event(const unsigned int (*cache_map)
- [PERF_COUNT_HW_CACHE_MAX]
- [PERF_COUNT_HW_CACHE_OP_MAX]
- [PERF_COUNT_HW_CACHE_RESULT_MAX], u64 config)
-{
- unsigned int cache_type, cache_op, cache_result, ret;
-
- cache_type = (config >> 0) & 0xff;
- if (cache_type >= PERF_COUNT_HW_CACHE_MAX)
- return -EINVAL;
-
- cache_op = (config >> 8) & 0xff;
- if (cache_op >= PERF_COUNT_HW_CACHE_OP_MAX)
- return -EINVAL;
-
- cache_result = (config >> 16) & 0xff;
- if (cache_result >= PERF_COUNT_HW_CACHE_RESULT_MAX)
- return -EINVAL;
-
- ret = (int)(*cache_map)[cache_type][cache_op][cache_result];
-
- if (ret == CACHE_OP_UNSUPPORTED)
- return -ENOENT;
-
- return ret;
-}
-
-static int
-nds32_pmu_map_hw_event(const unsigned int (*event_map)[PERF_COUNT_HW_MAX],
- u64 config)
-{
- int mapping;
-
- if (config >= PERF_COUNT_HW_MAX)
- return -ENOENT;
-
- mapping = (*event_map)[config];
- return mapping == HW_OP_UNSUPPORTED ? -ENOENT : mapping;
-}
-
-static int nds32_pmu_map_raw_event(u32 raw_event_mask, u64 config)
-{
- int ev_type = (int)(config & raw_event_mask);
- int idx = config >> 8;
-
- switch (idx) {
- case 0:
- ev_type = PFM_OFFSET_MAGIC_0 + ev_type;
- if (ev_type >= SPAV3_0_SEL_LAST || ev_type <= SPAV3_0_SEL_BASE)
- return -ENOENT;
- break;
- case 1:
- ev_type = PFM_OFFSET_MAGIC_1 + ev_type;
- if (ev_type >= SPAV3_1_SEL_LAST || ev_type <= SPAV3_1_SEL_BASE)
- return -ENOENT;
- break;
- case 2:
- ev_type = PFM_OFFSET_MAGIC_2 + ev_type;
- if (ev_type >= SPAV3_2_SEL_LAST || ev_type <= SPAV3_2_SEL_BASE)
- return -ENOENT;
- break;
- default:
- return -ENOENT;
- }
-
- return ev_type;
-}
-
-int
-nds32_pmu_map_event(struct perf_event *event,
- const unsigned int (*event_map)[PERF_COUNT_HW_MAX],
- const unsigned int (*cache_map)
- [PERF_COUNT_HW_CACHE_MAX]
- [PERF_COUNT_HW_CACHE_OP_MAX]
- [PERF_COUNT_HW_CACHE_RESULT_MAX], u32 raw_event_mask)
-{
- u64 config = event->attr.config;
-
- switch (event->attr.type) {
- case PERF_TYPE_HARDWARE:
- return nds32_pmu_map_hw_event(event_map, config);
- case PERF_TYPE_HW_CACHE:
- return nds32_pmu_map_cache_event(cache_map, config);
- case PERF_TYPE_RAW:
- return nds32_pmu_map_raw_event(raw_event_mask, config);
- }
-
- return -ENOENT;
-}
-
-static int nds32_spav3_map_event(struct perf_event *event)
-{
- return nds32_pmu_map_event(event, &nds32_pfm_perf_map,
- &nds32_pfm_perf_cache_map, SOFTWARE_EVENT_MASK);
-}
-
-static inline u32 nds32_pfm_getreset_flags(void)
-{
- /* Read overflow status */
- u32 val = __nds32__mfsr(NDS32_SR_PFM_CTL);
- u32 old_val = val;
-
- /* Write overflow bit to clear status, and others keep it 0 */
- u32 ov_flag = PFM_CTL_OVF[0] | PFM_CTL_OVF[1] | PFM_CTL_OVF[2];
-
- __nds32__mtsr(val | ov_flag, NDS32_SR_PFM_CTL);
-
- return old_val;
-}
-
-static inline int nds32_pfm_has_overflowed(u32 pfm)
-{
- u32 ov_flag = PFM_CTL_OVF[0] | PFM_CTL_OVF[1] | PFM_CTL_OVF[2];
-
- return pfm & ov_flag;
-}
-
-static inline int nds32_pfm_counter_has_overflowed(u32 pfm, int idx)
-{
- u32 mask = 0;
-
- switch (idx) {
- case 0:
- mask = PFM_CTL_OVF[0];
- break;
- case 1:
- mask = PFM_CTL_OVF[1];
- break;
- case 2:
- mask = PFM_CTL_OVF[2];
- break;
- default:
- pr_err("%s index wrong\n", __func__);
- break;
- }
- return pfm & mask;
-}
-
-/*
- * Set the next IRQ period, based on the hwc->period_left value.
- * To be called with the event disabled in hw:
- */
-int nds32_pmu_event_set_period(struct perf_event *event)
-{
- struct nds32_pmu *nds32_pmu = to_nds32_pmu(event->pmu);
- struct hw_perf_event *hwc = &event->hw;
- s64 left = local64_read(&hwc->period_left);
- s64 period = hwc->sample_period;
- int ret = 0;
-
- /* The period may have been changed by PERF_EVENT_IOC_PERIOD */
- if (unlikely(period != hwc->last_period))
- left = period - (hwc->last_period - left);
-
- if (unlikely(left <= -period)) {
- left = period;
- local64_set(&hwc->period_left, left);
- hwc->last_period = period;
- ret = 1;
- }
-
- if (unlikely(left <= 0)) {
- left += period;
- local64_set(&hwc->period_left, left);
- hwc->last_period = period;
- ret = 1;
- }
-
- if (left > (s64)nds32_pmu->max_period)
- left = nds32_pmu->max_period;
-
- /*
- * The hw event starts counting from this event offset,
- * mark it to be able to extract future "deltas":
- */
- local64_set(&hwc->prev_count, (u64)(-left));
-
- nds32_pmu->write_counter(event, (u64)(-left) & nds32_pmu->max_period);
-
- perf_event_update_userpage(event);
-
- return ret;
-}
-
-static irqreturn_t nds32_pmu_handle_irq(int irq_num, void *dev)
-{
- u32 pfm;
- struct perf_sample_data data;
- struct nds32_pmu *cpu_pmu = (struct nds32_pmu *)dev;
- struct pmu_hw_events *cpuc = cpu_pmu->get_hw_events();
- struct pt_regs *regs;
- int idx;
- /*
- * Get and reset the IRQ flags
- */
- pfm = nds32_pfm_getreset_flags();
-
- /*
- * Did an overflow occur?
- */
- if (!nds32_pfm_has_overflowed(pfm))
- return IRQ_NONE;
-
- /*
- * Handle the counter(s) overflow(s)
- */
- regs = get_irq_regs();
-
- nds32_pmu_stop(cpu_pmu);
- for (idx = 0; idx < cpu_pmu->num_events; ++idx) {
- struct perf_event *event = cpuc->events[idx];
- struct hw_perf_event *hwc;
-
- /* Ignore if we don't have an event. */
- if (!event)
- continue;
-
- /*
- * We have a single interrupt for all counters. Check that
- * each counter has overflowed before we process it.
- */
- if (!nds32_pfm_counter_has_overflowed(pfm, idx))
- continue;
-
- hwc = &event->hw;
- nds32_pmu_event_update(event);
- perf_sample_data_init(&data, 0, hwc->last_period);
- if (!nds32_pmu_event_set_period(event))
- continue;
-
- if (perf_event_overflow(event, &data, regs))
- cpu_pmu->disable(event);
- }
- nds32_pmu_start(cpu_pmu);
- /*
- * Handle the pending perf events.
- *
- * Note: this call *must* be run with interrupts disabled. For
- * platforms that can have the PMU interrupts raised as an NMI, this
- * will not work.
- */
- irq_work_run();
-
- return IRQ_HANDLED;
-}
-
-static inline int nds32_pfm_counter_valid(struct nds32_pmu *cpu_pmu, int idx)
-{
- return ((idx >= 0) && (idx < cpu_pmu->num_events));
-}
-
-static inline int nds32_pfm_disable_counter(int idx)
-{
- unsigned int val = __nds32__mfsr(NDS32_SR_PFM_CTL);
- u32 mask = 0;
-
- mask = PFM_CTL_EN[idx];
- val &= ~mask;
- val &= ~(PFM_CTL_OVF[0] | PFM_CTL_OVF[1] | PFM_CTL_OVF[2]);
- __nds32__mtsr_isb(val, NDS32_SR_PFM_CTL);
- return idx;
-}
-
-/*
- * Add an event filter to a given event.
- */
-static int nds32_pmu_set_event_filter(struct hw_perf_event *event,
- struct perf_event_attr *attr)
-{
- unsigned long config_base = 0;
- int idx = event->idx;
- unsigned long no_kernel_tracing = 0;
- unsigned long no_user_tracing = 0;
- /* If index is -1, do not do anything */
- if (idx == -1)
- return 0;
-
- no_kernel_tracing = PFM_CTL_KS[idx];
- no_user_tracing = PFM_CTL_KU[idx];
- /*
- * Default: enable both kernel and user mode tracing.
- */
- if (attr->exclude_user)
- config_base |= no_user_tracing;
-
- if (attr->exclude_kernel)
- config_base |= no_kernel_tracing;
-
- /*
- * Install the filter into config_base as this is used to
- * construct the event type.
- */
- event->config_base |= config_base;
- return 0;
-}
-
-static inline void nds32_pfm_write_evtsel(int idx, u32 evnum)
-{
- u32 offset = 0;
- u32 ori_val = __nds32__mfsr(NDS32_SR_PFM_CTL);
- u32 ev_mask = 0;
- u32 no_kernel_mask = 0;
- u32 no_user_mask = 0;
- u32 val;
-
- offset = PFM_CTL_OFFSEL[idx];
- /* Clear previous mode selection, and write new one */
- no_kernel_mask = PFM_CTL_KS[idx];
- no_user_mask = PFM_CTL_KU[idx];
- ori_val &= ~no_kernel_mask;
- ori_val &= ~no_user_mask;
- if (evnum & no_kernel_mask)
- ori_val |= no_kernel_mask;
-
- if (evnum & no_user_mask)
- ori_val |= no_user_mask;
-
- /* Clear previous event selection */
- ev_mask = PFM_CTL_SEL[idx];
- ori_val &= ~ev_mask;
- evnum &= SOFTWARE_EVENT_MASK;
-
- /* undo the linear mapping */
- evnum = get_converted_evet_hw_num(evnum);
- val = ori_val | (evnum << offset);
- val &= ~(PFM_CTL_OVF[0] | PFM_CTL_OVF[1] | PFM_CTL_OVF[2]);
- __nds32__mtsr_isb(val, NDS32_SR_PFM_CTL);
-}
-
-static inline int nds32_pfm_enable_counter(int idx)
-{
- unsigned int val = __nds32__mfsr(NDS32_SR_PFM_CTL);
- u32 mask = 0;
-
- mask = PFM_CTL_EN[idx];
- val |= mask;
- val &= ~(PFM_CTL_OVF[0] | PFM_CTL_OVF[1] | PFM_CTL_OVF[2]);
- __nds32__mtsr_isb(val, NDS32_SR_PFM_CTL);
- return idx;
-}
-
-static inline int nds32_pfm_enable_intens(int idx)
-{
- unsigned int val = __nds32__mfsr(NDS32_SR_PFM_CTL);
- u32 mask = 0;
-
- mask = PFM_CTL_IE[idx];
- val |= mask;
- val &= ~(PFM_CTL_OVF[0] | PFM_CTL_OVF[1] | PFM_CTL_OVF[2]);
- __nds32__mtsr_isb(val, NDS32_SR_PFM_CTL);
- return idx;
-}
-
-static inline int nds32_pfm_disable_intens(int idx)
-{
- unsigned int val = __nds32__mfsr(NDS32_SR_PFM_CTL);
- u32 mask = 0;
-
- mask = PFM_CTL_IE[idx];
- val &= ~mask;
- val &= ~(PFM_CTL_OVF[0] | PFM_CTL_OVF[1] | PFM_CTL_OVF[2]);
- __nds32__mtsr_isb(val, NDS32_SR_PFM_CTL);
- return idx;
-}
-
-static int event_requires_mode_exclusion(struct perf_event_attr *attr)
-{
- /* Other modes NDS32 does not support */
- return attr->exclude_user || attr->exclude_kernel;
-}
-
-static void nds32_pmu_enable_event(struct perf_event *event)
-{
- unsigned long flags;
- unsigned int evnum = 0;
- struct hw_perf_event *hwc = &event->hw;
- struct nds32_pmu *cpu_pmu = to_nds32_pmu(event->pmu);
- struct pmu_hw_events *events = cpu_pmu->get_hw_events();
- int idx = hwc->idx;
-
- if (!nds32_pfm_counter_valid(cpu_pmu, idx)) {
- pr_err("CPU enabling wrong pfm counter IRQ enable\n");
- return;
- }
-
- /*
- * Enable counter and interrupt, and set the counter to count
- * the event that we're interested in.
- */
- raw_spin_lock_irqsave(&events->pmu_lock, flags);
-
- /*
- * Disable counter
- */
- nds32_pfm_disable_counter(idx);
-
- /*
- * Check whether we need to exclude the counter from certain modes.
- */
- if ((!cpu_pmu->set_event_filter ||
- cpu_pmu->set_event_filter(hwc, &event->attr)) &&
- event_requires_mode_exclusion(&event->attr)) {
- pr_notice
- ("NDS32 performance counters do not support mode exclusion\n");
- hwc->config_base = 0;
- }
- /* Write event */
- evnum = hwc->config_base;
- nds32_pfm_write_evtsel(idx, evnum);
-
- /*
- * Enable interrupt for this counter
- */
- nds32_pfm_enable_intens(idx);
-
- /*
- * Enable counter
- */
- nds32_pfm_enable_counter(idx);
-
- raw_spin_unlock_irqrestore(&events->pmu_lock, flags);
-}
-
-static void nds32_pmu_disable_event(struct perf_event *event)
-{
- unsigned long flags;
- struct hw_perf_event *hwc = &event->hw;
- struct nds32_pmu *cpu_pmu = to_nds32_pmu(event->pmu);
- struct pmu_hw_events *events = cpu_pmu->get_hw_events();
- int idx = hwc->idx;
-
- if (!nds32_pfm_counter_valid(cpu_pmu, idx)) {
- pr_err("CPU disabling wrong pfm counter IRQ enable %d\n", idx);
- return;
- }
-
- /*
- * Disable counter and interrupt
- */
- raw_spin_lock_irqsave(&events->pmu_lock, flags);
-
- /*
- * Disable counter
- */
- nds32_pfm_disable_counter(idx);
-
- /*
- * Disable interrupt for this counter
- */
- nds32_pfm_disable_intens(idx);
-
- raw_spin_unlock_irqrestore(&events->pmu_lock, flags);
-}
-
-static inline u32 nds32_pmu_read_counter(struct perf_event *event)
-{
- struct nds32_pmu *cpu_pmu = to_nds32_pmu(event->pmu);
- struct hw_perf_event *hwc = &event->hw;
- int idx = hwc->idx;
- u32 count = 0;
-
- if (!nds32_pfm_counter_valid(cpu_pmu, idx)) {
- pr_err("CPU reading wrong counter %d\n", idx);
- } else {
- switch (idx) {
- case PFMC0:
- count = __nds32__mfsr(NDS32_SR_PFMC0);
- break;
- case PFMC1:
- count = __nds32__mfsr(NDS32_SR_PFMC1);
- break;
- case PFMC2:
- count = __nds32__mfsr(NDS32_SR_PFMC2);
- break;
- default:
- pr_err
- ("%s: CPU has no performance counters %d\n",
- __func__, idx);
- }
- }
- return count;
-}
-
-static inline void nds32_pmu_write_counter(struct perf_event *event, u32 value)
-{
- struct nds32_pmu *cpu_pmu = to_nds32_pmu(event->pmu);
- struct hw_perf_event *hwc = &event->hw;
- int idx = hwc->idx;
-
- if (!nds32_pfm_counter_valid(cpu_pmu, idx)) {
- pr_err("CPU writing wrong counter %d\n", idx);
- } else {
- switch (idx) {
- case PFMC0:
- __nds32__mtsr_isb(value, NDS32_SR_PFMC0);
- break;
- case PFMC1:
- __nds32__mtsr_isb(value, NDS32_SR_PFMC1);
- break;
- case PFMC2:
- __nds32__mtsr_isb(value, NDS32_SR_PFMC2);
- break;
- default:
- pr_err
- ("%s: CPU has no performance counters %d\n",
- __func__, idx);
- }
- }
-}
-
-static int nds32_pmu_get_event_idx(struct pmu_hw_events *cpuc,
- struct perf_event *event)
-{
- int idx;
- struct hw_perf_event *hwc = &event->hw;
- /*
- * Current implementation maps cycles, instruction count and cache-miss
- * to specific counter.
- * However, multiple of the 3 counters are able to count these events.
- *
- *
- * SOFTWARE_EVENT_MASK mask for getting event num ,
- * This is defined by Jia-Rung, you can change the polocies.
- * However, do not exceed 8 bits. This is hardware specific.
- * The last number is SPAv3_2_SEL_LAST.
- */
- unsigned long evtype = hwc->config_base & SOFTWARE_EVENT_MASK;
-
- idx = get_converted_event_idx(evtype);
- /*
- * Try to get the counter for correpsonding event
- */
- if (evtype == SPAV3_0_SEL_TOTAL_CYCLES) {
- if (!test_and_set_bit(idx, cpuc->used_mask))
- return idx;
- if (!test_and_set_bit(NDS32_IDX_COUNTER0, cpuc->used_mask))
- return NDS32_IDX_COUNTER0;
- if (!test_and_set_bit(NDS32_IDX_COUNTER1, cpuc->used_mask))
- return NDS32_IDX_COUNTER1;
- } else if (evtype == SPAV3_1_SEL_COMPLETED_INSTRUCTION) {
- if (!test_and_set_bit(idx, cpuc->used_mask))
- return idx;
- else if (!test_and_set_bit(NDS32_IDX_COUNTER1, cpuc->used_mask))
- return NDS32_IDX_COUNTER1;
- else if (!test_and_set_bit
- (NDS32_IDX_CYCLE_COUNTER, cpuc->used_mask))
- return NDS32_IDX_CYCLE_COUNTER;
- } else {
- if (!test_and_set_bit(idx, cpuc->used_mask))
- return idx;
- }
- return -EAGAIN;
-}
-
-static void nds32_pmu_start(struct nds32_pmu *cpu_pmu)
-{
- unsigned long flags;
- unsigned int val;
- struct pmu_hw_events *events = cpu_pmu->get_hw_events();
-
- raw_spin_lock_irqsave(&events->pmu_lock, flags);
-
- /* Enable all counters , NDS PFM has 3 counters */
- val = __nds32__mfsr(NDS32_SR_PFM_CTL);
- val |= (PFM_CTL_EN[0] | PFM_CTL_EN[1] | PFM_CTL_EN[2]);
- val &= ~(PFM_CTL_OVF[0] | PFM_CTL_OVF[1] | PFM_CTL_OVF[2]);
- __nds32__mtsr_isb(val, NDS32_SR_PFM_CTL);
-
- raw_spin_unlock_irqrestore(&events->pmu_lock, flags);
-}
-
-static void nds32_pmu_stop(struct nds32_pmu *cpu_pmu)
-{
- unsigned long flags;
- unsigned int val;
- struct pmu_hw_events *events = cpu_pmu->get_hw_events();
-
- raw_spin_lock_irqsave(&events->pmu_lock, flags);
-
- /* Disable all counters , NDS PFM has 3 counters */
- val = __nds32__mfsr(NDS32_SR_PFM_CTL);
- val &= ~(PFM_CTL_EN[0] | PFM_CTL_EN[1] | PFM_CTL_EN[2]);
- val &= ~(PFM_CTL_OVF[0] | PFM_CTL_OVF[1] | PFM_CTL_OVF[2]);
- __nds32__mtsr_isb(val, NDS32_SR_PFM_CTL);
-
- raw_spin_unlock_irqrestore(&events->pmu_lock, flags);
-}
-
-static void nds32_pmu_reset(void *info)
-{
- u32 val = 0;
-
- val |= (PFM_CTL_OVF[0] | PFM_CTL_OVF[1] | PFM_CTL_OVF[2]);
- __nds32__mtsr(val, NDS32_SR_PFM_CTL);
- __nds32__mtsr(0, NDS32_SR_PFM_CTL);
- __nds32__mtsr(0, NDS32_SR_PFMC0);
- __nds32__mtsr(0, NDS32_SR_PFMC1);
- __nds32__mtsr(0, NDS32_SR_PFMC2);
-}
-
-static void nds32_pmu_init(struct nds32_pmu *cpu_pmu)
-{
- cpu_pmu->handle_irq = nds32_pmu_handle_irq;
- cpu_pmu->enable = nds32_pmu_enable_event;
- cpu_pmu->disable = nds32_pmu_disable_event;
- cpu_pmu->read_counter = nds32_pmu_read_counter;
- cpu_pmu->write_counter = nds32_pmu_write_counter;
- cpu_pmu->get_event_idx = nds32_pmu_get_event_idx;
- cpu_pmu->start = nds32_pmu_start;
- cpu_pmu->stop = nds32_pmu_stop;
- cpu_pmu->reset = nds32_pmu_reset;
- cpu_pmu->max_period = 0xFFFFFFFF; /* Maximum counts */
-};
-
-static u32 nds32_read_num_pfm_events(void)
-{
- /* NDS32 SPAv3 PMU support 3 counter */
- return 3;
-}
-
-static int device_pmu_init(struct nds32_pmu *cpu_pmu)
-{
- nds32_pmu_init(cpu_pmu);
- /*
- * This name should be devive-specific name, whatever you like :)
- * I think "PMU" will be a good generic name.
- */
- cpu_pmu->name = "nds32v3-pmu";
- cpu_pmu->map_event = nds32_spav3_map_event;
- cpu_pmu->num_events = nds32_read_num_pfm_events();
- cpu_pmu->set_event_filter = nds32_pmu_set_event_filter;
- return 0;
-}
-
-/*
- * CPU PMU identification and probing.
- */
-static int probe_current_pmu(struct nds32_pmu *pmu)
-{
- int ret;
-
- get_cpu();
- ret = -ENODEV;
- /*
- * If ther are various CPU types with its own PMU, initialize with
- *
- * the corresponding one
- */
- device_pmu_init(pmu);
- put_cpu();
- return ret;
-}
-
-static void nds32_pmu_enable(struct pmu *pmu)
-{
- struct nds32_pmu *nds32_pmu = to_nds32_pmu(pmu);
- struct pmu_hw_events *hw_events = nds32_pmu->get_hw_events();
- int enabled = bitmap_weight(hw_events->used_mask,
- nds32_pmu->num_events);
-
- if (enabled)
- nds32_pmu->start(nds32_pmu);
-}
-
-static void nds32_pmu_disable(struct pmu *pmu)
-{
- struct nds32_pmu *nds32_pmu = to_nds32_pmu(pmu);
-
- nds32_pmu->stop(nds32_pmu);
-}
-
-static void nds32_pmu_release_hardware(struct nds32_pmu *nds32_pmu)
-{
- nds32_pmu->free_irq(nds32_pmu);
- pm_runtime_put_sync(&nds32_pmu->plat_device->dev);
-}
-
-static irqreturn_t nds32_pmu_dispatch_irq(int irq, void *dev)
-{
- struct nds32_pmu *nds32_pmu = (struct nds32_pmu *)dev;
- int ret;
- u64 start_clock, finish_clock;
-
- start_clock = local_clock();
- ret = nds32_pmu->handle_irq(irq, dev);
- finish_clock = local_clock();
-
- perf_sample_event_took(finish_clock - start_clock);
- return ret;
-}
-
-static int nds32_pmu_reserve_hardware(struct nds32_pmu *nds32_pmu)
-{
- int err;
- struct platform_device *pmu_device = nds32_pmu->plat_device;
-
- if (!pmu_device)
- return -ENODEV;
-
- pm_runtime_get_sync(&pmu_device->dev);
- err = nds32_pmu->request_irq(nds32_pmu, nds32_pmu_dispatch_irq);
- if (err) {
- nds32_pmu_release_hardware(nds32_pmu);
- return err;
- }
-
- return 0;
-}
-
-static int
-validate_event(struct pmu *pmu, struct pmu_hw_events *hw_events,
- struct perf_event *event)
-{
- struct nds32_pmu *nds32_pmu = to_nds32_pmu(event->pmu);
-
- if (is_software_event(event))
- return 1;
-
- if (event->pmu != pmu)
- return 0;
-
- if (event->state < PERF_EVENT_STATE_OFF)
- return 1;
-
- if (event->state == PERF_EVENT_STATE_OFF && !event->attr.enable_on_exec)
- return 1;
-
- return nds32_pmu->get_event_idx(hw_events, event) >= 0;
-}
-
-static int validate_group(struct perf_event *event)
-{
- struct perf_event *sibling, *leader = event->group_leader;
- struct pmu_hw_events fake_pmu;
- DECLARE_BITMAP(fake_used_mask, MAX_COUNTERS);
- /*
- * Initialize the fake PMU. We only need to populate the
- * used_mask for the purposes of validation.
- */
- memset(fake_used_mask, 0, sizeof(fake_used_mask));
-
- if (!validate_event(event->pmu, &fake_pmu, leader))
- return -EINVAL;
-
- for_each_sibling_event(sibling, leader) {
- if (!validate_event(event->pmu, &fake_pmu, sibling))
- return -EINVAL;
- }
-
- if (!validate_event(event->pmu, &fake_pmu, event))
- return -EINVAL;
-
- return 0;
-}
-
-static int __hw_perf_event_init(struct perf_event *event)
-{
- struct nds32_pmu *nds32_pmu = to_nds32_pmu(event->pmu);
- struct hw_perf_event *hwc = &event->hw;
- int mapping;
-
- mapping = nds32_pmu->map_event(event);
-
- if (mapping < 0) {
- pr_debug("event %x:%llx not supported\n", event->attr.type,
- event->attr.config);
- return mapping;
- }
-
- /*
- * We don't assign an index until we actually place the event onto
- * hardware. Use -1 to signify that we haven't decided where to put it
- * yet. For SMP systems, each core has it's own PMU so we can't do any
- * clever allocation or constraints checking at this point.
- */
- hwc->idx = -1;
- hwc->config_base = 0;
- hwc->config = 0;
- hwc->event_base = 0;
-
- /*
- * Check whether we need to exclude the counter from certain modes.
- */
- if ((!nds32_pmu->set_event_filter ||
- nds32_pmu->set_event_filter(hwc, &event->attr)) &&
- event_requires_mode_exclusion(&event->attr)) {
- pr_debug
- ("NDS performance counters do not support mode exclusion\n");
- return -EOPNOTSUPP;
- }
-
- /*
- * Store the event encoding into the config_base field.
- */
- hwc->config_base |= (unsigned long)mapping;
-
- if (!hwc->sample_period) {
- /*
- * For non-sampling runs, limit the sample_period to half
- * of the counter width. That way, the new counter value
- * is far less likely to overtake the previous one unless
- * you have some serious IRQ latency issues.
- */
- hwc->sample_period = nds32_pmu->max_period >> 1;
- hwc->last_period = hwc->sample_period;
- local64_set(&hwc->period_left, hwc->sample_period);
- }
-
- if (event->group_leader != event) {
- if (validate_group(event) != 0)
- return -EINVAL;
- }
-
- return 0;
-}
-
-static int nds32_pmu_event_init(struct perf_event *event)
-{
- struct nds32_pmu *nds32_pmu = to_nds32_pmu(event->pmu);
- int err = 0;
- atomic_t *active_events = &nds32_pmu->active_events;
-
- /* does not support taken branch sampling */
- if (has_branch_stack(event))
- return -EOPNOTSUPP;
-
- if (nds32_pmu->map_event(event) == -ENOENT)
- return -ENOENT;
-
- if (!atomic_inc_not_zero(active_events)) {
- if (atomic_read(active_events) == 0) {
- /* Register irq handler */
- err = nds32_pmu_reserve_hardware(nds32_pmu);
- }
-
- if (!err)
- atomic_inc(active_events);
- }
-
- if (err)
- return err;
-
- err = __hw_perf_event_init(event);
-
- return err;
-}
-
-static void nds32_start(struct perf_event *event, int flags)
-{
- struct nds32_pmu *nds32_pmu = to_nds32_pmu(event->pmu);
- struct hw_perf_event *hwc = &event->hw;
- /*
- * NDS pmu always has to reprogram the period, so ignore
- * PERF_EF_RELOAD, see the comment below.
- */
- if (flags & PERF_EF_RELOAD)
- WARN_ON_ONCE(!(hwc->state & PERF_HES_UPTODATE));
-
- hwc->state = 0;
- /* Set the period for the event. */
- nds32_pmu_event_set_period(event);
-
- nds32_pmu->enable(event);
-}
-
-static int nds32_pmu_add(struct perf_event *event, int flags)
-{
- struct nds32_pmu *nds32_pmu = to_nds32_pmu(event->pmu);
- struct pmu_hw_events *hw_events = nds32_pmu->get_hw_events();
- struct hw_perf_event *hwc = &event->hw;
- int idx;
- int err = 0;
-
- perf_pmu_disable(event->pmu);
-
- /* If we don't have a space for the counter then finish early. */
- idx = nds32_pmu->get_event_idx(hw_events, event);
- if (idx < 0) {
- err = idx;
- goto out;
- }
-
- /*
- * If there is an event in the counter we are going to use then make
- * sure it is disabled.
- */
- event->hw.idx = idx;
- nds32_pmu->disable(event);
- hw_events->events[idx] = event;
-
- hwc->state = PERF_HES_STOPPED | PERF_HES_UPTODATE;
- if (flags & PERF_EF_START)
- nds32_start(event, PERF_EF_RELOAD);
-
- /* Propagate our changes to the userspace mapping. */
- perf_event_update_userpage(event);
-
-out:
- perf_pmu_enable(event->pmu);
- return err;
-}
-
-u64 nds32_pmu_event_update(struct perf_event *event)
-{
- struct nds32_pmu *nds32_pmu = to_nds32_pmu(event->pmu);
- struct hw_perf_event *hwc = &event->hw;
- u64 delta, prev_raw_count, new_raw_count;
-
-again:
- prev_raw_count = local64_read(&hwc->prev_count);
- new_raw_count = nds32_pmu->read_counter(event);
-
- if (local64_cmpxchg(&hwc->prev_count, prev_raw_count,
- new_raw_count) != prev_raw_count) {
- goto again;
- }
- /*
- * Whether overflow or not, "unsigned substraction"
- * will always get their delta
- */
- delta = (new_raw_count - prev_raw_count) & nds32_pmu->max_period;
-
- local64_add(delta, &event->count);
- local64_sub(delta, &hwc->period_left);
-
- return new_raw_count;
-}
-
-static void nds32_stop(struct perf_event *event, int flags)
-{
- struct nds32_pmu *nds32_pmu = to_nds32_pmu(event->pmu);
- struct hw_perf_event *hwc = &event->hw;
- /*
- * NDS pmu always has to update the counter, so ignore
- * PERF_EF_UPDATE, see comments in nds32_start().
- */
- if (!(hwc->state & PERF_HES_STOPPED)) {
- nds32_pmu->disable(event);
- nds32_pmu_event_update(event);
- hwc->state |= PERF_HES_STOPPED | PERF_HES_UPTODATE;
- }
-}
-
-static void nds32_pmu_del(struct perf_event *event, int flags)
-{
- struct nds32_pmu *nds32_pmu = to_nds32_pmu(event->pmu);
- struct pmu_hw_events *hw_events = nds32_pmu->get_hw_events();
- struct hw_perf_event *hwc = &event->hw;
- int idx = hwc->idx;
-
- nds32_stop(event, PERF_EF_UPDATE);
- hw_events->events[idx] = NULL;
- clear_bit(idx, hw_events->used_mask);
-
- perf_event_update_userpage(event);
-}
-
-static void nds32_pmu_read(struct perf_event *event)
-{
- nds32_pmu_event_update(event);
-}
-
-/* Please refer to SPAv3 for more hardware specific details */
-PMU_FORMAT_ATTR(event, "config:0-63");
-
-static struct attribute *nds32_arch_formats_attr[] = {
- &format_attr_event.attr,
- NULL,
-};
-
-static struct attribute_group nds32_pmu_format_group = {
- .name = "format",
- .attrs = nds32_arch_formats_attr,
-};
-
-static ssize_t nds32_pmu_cpumask_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- return 0;
-}
-
-static DEVICE_ATTR(cpus, 0444, nds32_pmu_cpumask_show, NULL);
-
-static struct attribute *nds32_pmu_common_attrs[] = {
- &dev_attr_cpus.attr,
- NULL,
-};
-
-static struct attribute_group nds32_pmu_common_group = {
- .attrs = nds32_pmu_common_attrs,
-};
-
-static const struct attribute_group *nds32_pmu_attr_groups[] = {
- &nds32_pmu_format_group,
- &nds32_pmu_common_group,
- NULL,
-};
-
-static void nds32_init(struct nds32_pmu *nds32_pmu)
-{
- atomic_set(&nds32_pmu->active_events, 0);
-
- nds32_pmu->pmu = (struct pmu) {
- .pmu_enable = nds32_pmu_enable,
- .pmu_disable = nds32_pmu_disable,
- .attr_groups = nds32_pmu_attr_groups,
- .event_init = nds32_pmu_event_init,
- .add = nds32_pmu_add,
- .del = nds32_pmu_del,
- .start = nds32_start,
- .stop = nds32_stop,
- .read = nds32_pmu_read,
- };
-}
-
-int nds32_pmu_register(struct nds32_pmu *nds32_pmu, int type)
-{
- nds32_init(nds32_pmu);
- pm_runtime_enable(&nds32_pmu->plat_device->dev);
- pr_info("enabled with %s PMU driver, %d counters available\n",
- nds32_pmu->name, nds32_pmu->num_events);
- return perf_pmu_register(&nds32_pmu->pmu, nds32_pmu->name, type);
-}
-
-static struct pmu_hw_events *cpu_pmu_get_cpu_events(void)
-{
- return this_cpu_ptr(&cpu_hw_events);
-}
-
-static int cpu_pmu_request_irq(struct nds32_pmu *cpu_pmu, irq_handler_t handler)
-{
- int err, irq, irqs;
- struct platform_device *pmu_device = cpu_pmu->plat_device;
-
- if (!pmu_device)
- return -ENODEV;
-
- irqs = min(pmu_device->num_resources, num_possible_cpus());
- if (irqs < 1) {
- pr_err("no irqs for PMUs defined\n");
- return -ENODEV;
- }
-
- irq = platform_get_irq(pmu_device, 0);
- err = request_irq(irq, handler, IRQF_NOBALANCING, "nds32-pfm",
- cpu_pmu);
- if (err) {
- pr_err("unable to request IRQ%d for NDS PMU counters\n",
- irq);
- return err;
- }
- return 0;
-}
-
-static void cpu_pmu_free_irq(struct nds32_pmu *cpu_pmu)
-{
- int irq;
- struct platform_device *pmu_device = cpu_pmu->plat_device;
-
- irq = platform_get_irq(pmu_device, 0);
- if (irq >= 0)
- free_irq(irq, cpu_pmu);
-}
-
-static void cpu_pmu_init(struct nds32_pmu *cpu_pmu)
-{
- int cpu;
- struct pmu_hw_events *events = &per_cpu(cpu_hw_events, cpu);
-
- raw_spin_lock_init(&events->pmu_lock);
-
- cpu_pmu->get_hw_events = cpu_pmu_get_cpu_events;
- cpu_pmu->request_irq = cpu_pmu_request_irq;
- cpu_pmu->free_irq = cpu_pmu_free_irq;
-
- /* Ensure the PMU has sane values out of reset. */
- if (cpu_pmu->reset)
- on_each_cpu(cpu_pmu->reset, cpu_pmu, 1);
-}
-
-static const struct of_device_id cpu_pmu_of_device_ids[] = {
- {.compatible = "andestech,nds32v3-pmu",
- .data = device_pmu_init},
- {},
-};
-
-static int cpu_pmu_device_probe(struct platform_device *pdev)
-{
- const struct of_device_id *of_id;
- int (*init_fn)(struct nds32_pmu *nds32_pmu);
- struct device_node *node = pdev->dev.of_node;
- struct nds32_pmu *pmu;
- int ret = -ENODEV;
-
- if (cpu_pmu) {
- pr_notice("[perf] attempt to register multiple PMU devices!\n");
- return -ENOSPC;
- }
-
- pmu = kzalloc(sizeof(*pmu), GFP_KERNEL);
- if (!pmu)
- return -ENOMEM;
-
- of_id = of_match_node(cpu_pmu_of_device_ids, pdev->dev.of_node);
- if (node && of_id) {
- init_fn = of_id->data;
- ret = init_fn(pmu);
- } else {
- ret = probe_current_pmu(pmu);
- }
-
- if (ret) {
- pr_notice("[perf] failed to probe PMU!\n");
- goto out_free;
- }
-
- cpu_pmu = pmu;
- cpu_pmu->plat_device = pdev;
- cpu_pmu_init(cpu_pmu);
- ret = nds32_pmu_register(cpu_pmu, PERF_TYPE_RAW);
-
- if (!ret)
- return 0;
-
-out_free:
- pr_notice("[perf] failed to register PMU devices!\n");
- kfree(pmu);
- return ret;
-}
-
-static struct platform_driver cpu_pmu_driver = {
- .driver = {
- .name = "nds32-pfm",
- .of_match_table = cpu_pmu_of_device_ids,
- },
- .probe = cpu_pmu_device_probe,
- .id_table = cpu_pmu_plat_device_ids,
-};
-
-static int __init register_pmu_driver(void)
-{
- int err = 0;
-
- err = platform_driver_register(&cpu_pmu_driver);
- if (err)
- pr_notice("[perf] PMU initialization failed\n");
- else
- pr_notice("[perf] PMU initialization done\n");
-
- return err;
-}
-
-device_initcall(register_pmu_driver);
-
-/*
- * References: arch/nds32/kernel/traps.c:__dump()
- * You will need to know the NDS ABI first.
- */
-static int unwind_frame_kernel(struct stackframe *frame)
-{
- int graph = 0;
-#ifdef CONFIG_FRAME_POINTER
- /* 0x3 means misalignment */
- if (!kstack_end((void *)frame->fp) &&
- !((unsigned long)frame->fp & 0x3) &&
- ((unsigned long)frame->fp >= TASK_SIZE)) {
- /*
- * The array index is based on the ABI, the below graph
- * illustrate the reasons.
- * Function call procedure: "smw" and "lmw" will always
- * update SP and FP for you automatically.
- *
- * Stack Relative Address
- * | | 0
- * ----
- * |LP| <-- SP(before smw) <-- FP(after smw) -1
- * ----
- * |FP| -2
- * ----
- * | | <-- SP(after smw) -3
- */
- frame->lp = ((unsigned long *)frame->fp)[-1];
- frame->fp = ((unsigned long *)frame->fp)[FP_OFFSET];
- /* make sure CONFIG_FUNCTION_GRAPH_TRACER is turned on */
- if (__kernel_text_address(frame->lp))
- frame->lp = ftrace_graph_ret_addr
- (NULL, &graph, frame->lp, NULL);
-
- return 0;
- } else {
- return -EPERM;
- }
-#else
- /*
- * You can refer to arch/nds32/kernel/traps.c:__dump()
- * Treat "sp" as "fp", but the "sp" is one frame ahead of "fp".
- * And, the "sp" is not always correct.
- *
- * Stack Relative Address
- * | | 0
- * ----
- * |LP| <-- SP(before smw) -1
- * ----
- * | | <-- SP(after smw) -2
- * ----
- */
- if (!kstack_end((void *)frame->sp)) {
- frame->lp = ((unsigned long *)frame->sp)[1];
- /* TODO: How to deal with the value in first
- * "sp" is not correct?
- */
- if (__kernel_text_address(frame->lp))
- frame->lp = ftrace_graph_ret_addr
- (tsk, &graph, frame->lp, NULL);
-
- frame->sp = ((unsigned long *)frame->sp) + 1;
-
- return 0;
- } else {
- return -EPERM;
- }
-#endif
-}
-
-static void notrace
-walk_stackframe(struct stackframe *frame,
- int (*fn_record)(struct stackframe *, void *),
- void *data)
-{
- while (1) {
- int ret;
-
- if (fn_record(frame, data))
- break;
-
- ret = unwind_frame_kernel(frame);
- if (ret < 0)
- break;
- }
-}
-
-/*
- * Gets called by walk_stackframe() for every stackframe. This will be called
- * whist unwinding the stackframe and is like a subroutine return so we use
- * the PC.
- */
-static int callchain_trace(struct stackframe *fr, void *data)
-{
- struct perf_callchain_entry_ctx *entry = data;
-
- perf_callchain_store(entry, fr->lp);
- return 0;
-}
-
-/*
- * Get the return address for a single stackframe and return a pointer to the
- * next frame tail.
- */
-static unsigned long
-user_backtrace(struct perf_callchain_entry_ctx *entry, unsigned long fp)
-{
- struct frame_tail buftail;
- unsigned long lp = 0;
- unsigned long *user_frame_tail =
- (unsigned long *)(fp - (unsigned long)sizeof(buftail));
-
- /* Check accessibility of one struct frame_tail beyond */
- if (!access_ok(user_frame_tail, sizeof(buftail)))
- return 0;
- if (__copy_from_user_inatomic
- (&buftail, user_frame_tail, sizeof(buftail)))
- return 0;
-
- /*
- * Refer to unwind_frame_kernel() for more illurstration
- */
- lp = buftail.stack_lp; /* ((unsigned long *)fp)[-1] */
- fp = buftail.stack_fp; /* ((unsigned long *)fp)[FP_OFFSET] */
- perf_callchain_store(entry, lp);
- return fp;
-}
-
-static unsigned long
-user_backtrace_opt_size(struct perf_callchain_entry_ctx *entry,
- unsigned long fp)
-{
- struct frame_tail_opt_size buftail;
- unsigned long lp = 0;
-
- unsigned long *user_frame_tail =
- (unsigned long *)(fp - (unsigned long)sizeof(buftail));
-
- /* Check accessibility of one struct frame_tail beyond */
- if (!access_ok(user_frame_tail, sizeof(buftail)))
- return 0;
- if (__copy_from_user_inatomic
- (&buftail, user_frame_tail, sizeof(buftail)))
- return 0;
-
- /*
- * Refer to unwind_frame_kernel() for more illurstration
- */
- lp = buftail.stack_lp; /* ((unsigned long *)fp)[-1] */
- fp = buftail.stack_fp; /* ((unsigned long *)fp)[FP_OFFSET] */
-
- perf_callchain_store(entry, lp);
- return fp;
-}
-
-/*
- * This will be called when the target is in user mode
- * This function will only be called when we use
- * "PERF_SAMPLE_CALLCHAIN" in
- * kernel/events/core.c:perf_prepare_sample()
- *
- * How to trigger perf_callchain_[user/kernel] :
- * $ perf record -e cpu-clock --call-graph fp ./program
- * $ perf report --call-graph
- */
-unsigned long leaf_fp;
-void
-perf_callchain_user(struct perf_callchain_entry_ctx *entry,
- struct pt_regs *regs)
-{
- unsigned long fp = 0;
- unsigned long gp = 0;
- unsigned long lp = 0;
- unsigned long sp = 0;
- unsigned long *user_frame_tail;
-
- leaf_fp = 0;
-
- perf_callchain_store(entry, regs->ipc);
- fp = regs->fp;
- gp = regs->gp;
- lp = regs->lp;
- sp = regs->sp;
- if (entry->nr < PERF_MAX_STACK_DEPTH &&
- (unsigned long)fp && !((unsigned long)fp & 0x7) && fp > sp) {
- user_frame_tail =
- (unsigned long *)(fp - (unsigned long)sizeof(fp));
-
- if (!access_ok(user_frame_tail, sizeof(fp)))
- return;
-
- if (__copy_from_user_inatomic
- (&leaf_fp, user_frame_tail, sizeof(fp)))
- return;
-
- if (leaf_fp == lp) {
- /*
- * Maybe this is non leaf function
- * with optimize for size,
- * or maybe this is the function
- * with optimize for size
- */
- struct frame_tail buftail;
-
- user_frame_tail =
- (unsigned long *)(fp -
- (unsigned long)sizeof(buftail));
-
- if (!access_ok(user_frame_tail, sizeof(buftail)))
- return;
-
- if (__copy_from_user_inatomic
- (&buftail, user_frame_tail, sizeof(buftail)))
- return;
-
- if (buftail.stack_fp == gp) {
- /* non leaf function with optimize
- * for size condition
- */
- struct frame_tail_opt_size buftail_opt_size;
-
- user_frame_tail =
- (unsigned long *)(fp - (unsigned long)
- sizeof(buftail_opt_size));
-
- if (!access_ok(user_frame_tail,
- sizeof(buftail_opt_size)))
- return;
-
- if (__copy_from_user_inatomic
- (&buftail_opt_size, user_frame_tail,
- sizeof(buftail_opt_size)))
- return;
-
- perf_callchain_store(entry, lp);
- fp = buftail_opt_size.stack_fp;
-
- while ((entry->nr < PERF_MAX_STACK_DEPTH) &&
- (unsigned long)fp &&
- !((unsigned long)fp & 0x7) &&
- fp > sp) {
- sp = fp;
- fp = user_backtrace_opt_size(entry, fp);
- }
-
- } else {
- /* this is the function
- * without optimize for size
- */
- fp = buftail.stack_fp;
- perf_callchain_store(entry, lp);
- while ((entry->nr < PERF_MAX_STACK_DEPTH) &&
- (unsigned long)fp &&
- !((unsigned long)fp & 0x7) &&
- fp > sp) {
- sp = fp;
- fp = user_backtrace(entry, fp);
- }
- }
- } else {
- /* this is leaf function */
- fp = leaf_fp;
- perf_callchain_store(entry, lp);
-
- /* previous function callcahin */
- while ((entry->nr < PERF_MAX_STACK_DEPTH) &&
- (unsigned long)fp &&
- !((unsigned long)fp & 0x7) && fp > sp) {
- sp = fp;
- fp = user_backtrace(entry, fp);
- }
- }
- return;
- }
-}
-
-/* This will be called when the target is in kernel mode */
-void
-perf_callchain_kernel(struct perf_callchain_entry_ctx *entry,
- struct pt_regs *regs)
-{
- struct stackframe fr;
-
- fr.fp = regs->fp;
- fr.lp = regs->lp;
- fr.sp = regs->sp;
- walk_stackframe(&fr, callchain_trace, entry);
-}
-
-unsigned long perf_instruction_pointer(struct pt_regs *regs)
-{
- return instruction_pointer(regs);
-}
-
-unsigned long perf_misc_flags(struct pt_regs *regs)
-{
- int misc = 0;
-
- if (user_mode(regs))
- misc |= PERF_RECORD_MISC_USER;
- else
- misc |= PERF_RECORD_MISC_KERNEL;
-
- return misc;
-}
diff --git a/arch/nds32/kernel/pm.c b/arch/nds32/kernel/pm.c
deleted file mode 100644
index e25700e125d8..000000000000
--- a/arch/nds32/kernel/pm.c
+++ /dev/null
@@ -1,80 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2008-2017 Andes Technology Corporation
-
-#include <linux/init.h>
-#include <linux/suspend.h>
-#include <linux/device.h>
-#include <linux/printk.h>
-#include <asm/suspend.h>
-#include <nds32_intrinsic.h>
-
-unsigned int resume_addr;
-unsigned int *phy_addr_sp_tmp;
-
-static void nds32_suspend2ram(void)
-{
- pgd_t *pgdv;
- p4d_t *p4dv;
- pud_t *pudv;
- pmd_t *pmdv;
- pte_t *ptev;
-
- pgdv = (pgd_t *)__va((__nds32__mfsr(NDS32_SR_L1_PPTB) &
- L1_PPTB_mskBASE)) + pgd_index((unsigned int)cpu_resume);
-
- p4dv = p4d_offset(pgdv, (unsigned int)cpu_resume);
- pudv = pud_offset(p4dv, (unsigned int)cpu_resume);
- pmdv = pmd_offset(pudv, (unsigned int)cpu_resume);
- ptev = pte_offset_map(pmdv, (unsigned int)cpu_resume);
-
- resume_addr = ((*ptev) & TLB_DATA_mskPPN)
- | ((unsigned int)cpu_resume & 0x00000fff);
-
- suspend2ram();
-}
-
-static void nds32_suspend_cpu(void)
-{
- while (!(__nds32__mfsr(NDS32_SR_INT_PEND) & wake_mask))
- __asm__ volatile ("standby no_wake_grant\n\t");
-}
-
-static int nds32_pm_valid(suspend_state_t state)
-{
- switch (state) {
- case PM_SUSPEND_ON:
- case PM_SUSPEND_STANDBY:
- case PM_SUSPEND_MEM:
- return 1;
- default:
- return 0;
- }
-}
-
-static int nds32_pm_enter(suspend_state_t state)
-{
- pr_debug("%s:state:%d\n", __func__, state);
- switch (state) {
- case PM_SUSPEND_STANDBY:
- nds32_suspend_cpu();
- return 0;
- case PM_SUSPEND_MEM:
- nds32_suspend2ram();
- return 0;
- default:
- return -EINVAL;
- }
-}
-
-static const struct platform_suspend_ops nds32_pm_ops = {
- .valid = nds32_pm_valid,
- .enter = nds32_pm_enter,
-};
-
-static int __init nds32_pm_init(void)
-{
- pr_debug("Enter %s\n", __func__);
- suspend_set_ops(&nds32_pm_ops);
- return 0;
-}
-late_initcall(nds32_pm_init);
diff --git a/arch/nds32/kernel/process.c b/arch/nds32/kernel/process.c
deleted file mode 100644
index 49fab9e39cbf..000000000000
--- a/arch/nds32/kernel/process.c
+++ /dev/null
@@ -1,257 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <linux/sched.h>
-#include <linux/sched/debug.h>
-#include <linux/sched/task_stack.h>
-#include <linux/delay.h>
-#include <linux/kallsyms.h>
-#include <linux/uaccess.h>
-#include <asm/elf.h>
-#include <asm/proc-fns.h>
-#include <asm/fpu.h>
-#include <linux/ptrace.h>
-#include <linux/reboot.h>
-
-#if IS_ENABLED(CONFIG_LAZY_FPU)
-struct task_struct *last_task_used_math;
-#endif
-
-extern void setup_mm_for_reboot(char mode);
-
-extern inline void arch_reset(char mode)
-{
- if (mode == 's') {
- /* Use cpu handler, jump to 0 */
- cpu_reset(0);
- }
-}
-
-void (*pm_power_off) (void);
-EXPORT_SYMBOL(pm_power_off);
-
-static char reboot_mode_nds32 = 'h';
-
-int __init reboot_setup(char *str)
-{
- reboot_mode_nds32 = str[0];
- return 1;
-}
-
-static int cpub_pwroff(void)
-{
- return 0;
-}
-
-__setup("reboot=", reboot_setup);
-
-void machine_halt(void)
-{
- cpub_pwroff();
-}
-
-EXPORT_SYMBOL(machine_halt);
-
-void machine_power_off(void)
-{
- if (pm_power_off)
- pm_power_off();
-}
-
-EXPORT_SYMBOL(machine_power_off);
-
-void machine_restart(char *cmd)
-{
- /*
- * Clean and disable cache, and turn off interrupts
- */
- cpu_proc_fin();
-
- /*
- * Tell the mm system that we are going to reboot -
- * we may need it to insert some 1:1 mappings so that
- * soft boot works.
- */
- setup_mm_for_reboot(reboot_mode_nds32);
-
- /* Execute kernel restart handler call chain */
- do_kernel_restart(cmd);
-
- /*
- * Now call the architecture specific reboot code.
- */
- arch_reset(reboot_mode_nds32);
-
- /*
- * Whoops - the architecture was unable to reboot.
- * Tell the user!
- */
- mdelay(1000);
- pr_info("Reboot failed -- System halted\n");
- while (1) ;
-}
-
-EXPORT_SYMBOL(machine_restart);
-
-void show_regs(struct pt_regs *regs)
-{
- printk("PC is at %pS\n", (void *)instruction_pointer(regs));
- printk("LP is at %pS\n", (void *)regs->lp);
- pr_info("pc : [<%08lx>] lp : [<%08lx>] %s\n"
- "sp : %08lx fp : %08lx gp : %08lx\n",
- instruction_pointer(regs),
- regs->lp, print_tainted(), regs->sp, regs->fp, regs->gp);
- pr_info("r25: %08lx r24: %08lx\n", regs->uregs[25], regs->uregs[24]);
-
- pr_info("r23: %08lx r22: %08lx r21: %08lx r20: %08lx\n",
- regs->uregs[23], regs->uregs[22],
- regs->uregs[21], regs->uregs[20]);
- pr_info("r19: %08lx r18: %08lx r17: %08lx r16: %08lx\n",
- regs->uregs[19], regs->uregs[18],
- regs->uregs[17], regs->uregs[16]);
- pr_info("r15: %08lx r14: %08lx r13: %08lx r12: %08lx\n",
- regs->uregs[15], regs->uregs[14],
- regs->uregs[13], regs->uregs[12]);
- pr_info("r11: %08lx r10: %08lx r9 : %08lx r8 : %08lx\n",
- regs->uregs[11], regs->uregs[10],
- regs->uregs[9], regs->uregs[8]);
- pr_info("r7 : %08lx r6 : %08lx r5 : %08lx r4 : %08lx\n",
- regs->uregs[7], regs->uregs[6], regs->uregs[5], regs->uregs[4]);
- pr_info("r3 : %08lx r2 : %08lx r1 : %08lx r0 : %08lx\n",
- regs->uregs[3], regs->uregs[2], regs->uregs[1], regs->uregs[0]);
- pr_info(" IRQs o%s Segment %s\n",
- interrupts_enabled(regs) ? "n" : "ff",
- uaccess_kernel() ? "kernel" : "user");
-}
-
-EXPORT_SYMBOL(show_regs);
-
-void exit_thread(struct task_struct *tsk)
-{
-#if defined(CONFIG_FPU) && defined(CONFIG_LAZY_FPU)
- if (last_task_used_math == tsk)
- last_task_used_math = NULL;
-#endif
-}
-
-void flush_thread(void)
-{
-#if defined(CONFIG_FPU)
- clear_fpu(task_pt_regs(current));
- clear_used_math();
-# ifdef CONFIG_LAZY_FPU
- if (last_task_used_math == current)
- last_task_used_math = NULL;
-# endif
-#endif
-}
-
-DEFINE_PER_CPU(struct task_struct *, __entry_task);
-
-asmlinkage void ret_from_fork(void) __asm__("ret_from_fork");
-int copy_thread(unsigned long clone_flags, unsigned long stack_start,
- unsigned long stk_sz, struct task_struct *p, unsigned long tls)
-{
- struct pt_regs *childregs = task_pt_regs(p);
-
- memset(&p->thread.cpu_context, 0, sizeof(struct cpu_context));
-
- if (unlikely(p->flags & (PF_KTHREAD | PF_IO_WORKER))) {
- memset(childregs, 0, sizeof(struct pt_regs));
- /* kernel thread fn */
- p->thread.cpu_context.r6 = stack_start;
- /* kernel thread argument */
- p->thread.cpu_context.r7 = stk_sz;
- } else {
- *childregs = *current_pt_regs();
- if (stack_start)
- childregs->sp = stack_start;
- /* child get zero as ret. */
- childregs->uregs[0] = 0;
- childregs->osp = 0;
- if (clone_flags & CLONE_SETTLS)
- childregs->uregs[25] = tls;
- }
- /* cpu context switching */
- p->thread.cpu_context.pc = (unsigned long)ret_from_fork;
- p->thread.cpu_context.sp = (unsigned long)childregs;
-
-#if IS_ENABLED(CONFIG_FPU)
- if (used_math()) {
-# if !IS_ENABLED(CONFIG_LAZY_FPU)
- unlazy_fpu(current);
-# else
- preempt_disable();
- if (last_task_used_math == current)
- save_fpu(current);
- preempt_enable();
-# endif
- p->thread.fpu = current->thread.fpu;
- clear_fpu(task_pt_regs(p));
- set_stopped_child_used_math(p);
- }
-#endif
-
-#ifdef CONFIG_HWZOL
- childregs->lb = 0;
- childregs->le = 0;
- childregs->lc = 0;
-#endif
-
- return 0;
-}
-
-#if IS_ENABLED(CONFIG_FPU)
-struct task_struct *_switch_fpu(struct task_struct *prev, struct task_struct *next)
-{
-#if !IS_ENABLED(CONFIG_LAZY_FPU)
- unlazy_fpu(prev);
-#endif
- if (!(next->flags & PF_KTHREAD))
- clear_fpu(task_pt_regs(next));
- return prev;
-}
-#endif
-
-/*
- * fill in the fpe structure for a core dump...
- */
-int dump_fpu(struct pt_regs *regs, elf_fpregset_t * fpu)
-{
- int fpvalid = 0;
-#if IS_ENABLED(CONFIG_FPU)
- struct task_struct *tsk = current;
-
- fpvalid = tsk_used_math(tsk);
- if (fpvalid) {
- lose_fpu();
- memcpy(fpu, &tsk->thread.fpu, sizeof(*fpu));
- }
-#endif
- return fpvalid;
-}
-
-EXPORT_SYMBOL(dump_fpu);
-
-unsigned long __get_wchan(struct task_struct *p)
-{
- unsigned long fp, lr;
- unsigned long stack_start, stack_end;
- int count = 0;
-
- if (IS_ENABLED(CONFIG_FRAME_POINTER)) {
- stack_start = (unsigned long)end_of_stack(p);
- stack_end = (unsigned long)task_stack_page(p) + THREAD_SIZE;
-
- fp = thread_saved_fp(p);
- do {
- if (fp < stack_start || fp > stack_end)
- return 0;
- lr = ((unsigned long *)fp)[0];
- if (!in_sched_functions(lr))
- return lr;
- fp = *(unsigned long *)(fp + 4);
- } while (count++ < 16);
- }
- return 0;
-}
diff --git a/arch/nds32/kernel/ptrace.c b/arch/nds32/kernel/ptrace.c
deleted file mode 100644
index d0eda870fbc2..000000000000
--- a/arch/nds32/kernel/ptrace.c
+++ /dev/null
@@ -1,118 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <linux/ptrace.h>
-#include <linux/regset.h>
-#include <linux/tracehook.h>
-#include <linux/elf.h>
-#include <linux/sched/task_stack.h>
-
-enum nds32_regset {
- REGSET_GPR,
-};
-
-static int gpr_get(struct task_struct *target,
- const struct user_regset *regset,
- struct membuf to)
-{
- return membuf_write(&to, &task_pt_regs(target)->user_regs,
- sizeof(struct user_pt_regs));
-}
-
-static int gpr_set(struct task_struct *target, const struct user_regset *regset,
- unsigned int pos, unsigned int count,
- const void *kbuf, const void __user * ubuf)
-{
- int err;
- struct user_pt_regs newregs = task_pt_regs(target)->user_regs;
-
- err = user_regset_copyin(&pos, &count, &kbuf, &ubuf, &newregs, 0, -1);
- if (err)
- return err;
-
- task_pt_regs(target)->user_regs = newregs;
- return 0;
-}
-
-static const struct user_regset nds32_regsets[] = {
- [REGSET_GPR] = {
- .core_note_type = NT_PRSTATUS,
- .n = sizeof(struct user_pt_regs) / sizeof(u32),
- .size = sizeof(elf_greg_t),
- .align = sizeof(elf_greg_t),
- .regset_get = gpr_get,
- .set = gpr_set}
-};
-
-static const struct user_regset_view nds32_user_view = {
- .name = "nds32",
- .e_machine = EM_NDS32,
- .regsets = nds32_regsets,
- .n = ARRAY_SIZE(nds32_regsets)
-};
-
-const struct user_regset_view *task_user_regset_view(struct task_struct *task)
-{
- return &nds32_user_view;
-}
-
-void ptrace_disable(struct task_struct *child)
-{
- user_disable_single_step(child);
-}
-
-/* do_ptrace()
- *
- * Provide ptrace defined service.
- */
-long arch_ptrace(struct task_struct *child, long request, unsigned long addr,
- unsigned long data)
-{
- int ret = -EIO;
-
- switch (request) {
- default:
- ret = ptrace_request(child, request, addr, data);
- break;
- }
-
- return ret;
-}
-
-void user_enable_single_step(struct task_struct *child)
-{
- struct pt_regs *regs;
- regs = task_pt_regs(child);
- regs->ipsw |= PSW_mskHSS;
- set_tsk_thread_flag(child, TIF_SINGLESTEP);
-}
-
-void user_disable_single_step(struct task_struct *child)
-{
- struct pt_regs *regs;
- regs = task_pt_regs(child);
- regs->ipsw &= ~PSW_mskHSS;
- clear_tsk_thread_flag(child, TIF_SINGLESTEP);
-}
-
-/* sys_trace()
- *
- * syscall trace handler.
- */
-
-asmlinkage int syscall_trace_enter(struct pt_regs *regs)
-{
- if (test_thread_flag(TIF_SYSCALL_TRACE)) {
- if (tracehook_report_syscall_entry(regs))
- forget_syscall(regs);
- }
- return regs->syscallno;
-}
-
-asmlinkage void syscall_trace_leave(struct pt_regs *regs)
-{
- int step = test_thread_flag(TIF_SINGLESTEP);
- if (step || test_thread_flag(TIF_SYSCALL_TRACE))
- tracehook_report_syscall_exit(regs, step);
-
-}
diff --git a/arch/nds32/kernel/setup.c b/arch/nds32/kernel/setup.c
deleted file mode 100644
index b3d34d646652..000000000000
--- a/arch/nds32/kernel/setup.c
+++ /dev/null
@@ -1,369 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <linux/cpu.h>
-#include <linux/memblock.h>
-#include <linux/seq_file.h>
-#include <linux/console.h>
-#include <linux/screen_info.h>
-#include <linux/delay.h>
-#include <linux/dma-mapping.h>
-#include <linux/of_fdt.h>
-#include <linux/of_platform.h>
-#include <asm/setup.h>
-#include <asm/sections.h>
-#include <asm/proc-fns.h>
-#include <asm/cache_info.h>
-#include <asm/elf.h>
-#include <asm/fpu.h>
-#include <nds32_intrinsic.h>
-
-#define HWCAP_MFUSR_PC 0x000001
-#define HWCAP_EXT 0x000002
-#define HWCAP_EXT2 0x000004
-#define HWCAP_FPU 0x000008
-#define HWCAP_AUDIO 0x000010
-#define HWCAP_BASE16 0x000020
-#define HWCAP_STRING 0x000040
-#define HWCAP_REDUCED_REGS 0x000080
-#define HWCAP_VIDEO 0x000100
-#define HWCAP_ENCRYPT 0x000200
-#define HWCAP_EDM 0x000400
-#define HWCAP_LMDMA 0x000800
-#define HWCAP_PFM 0x001000
-#define HWCAP_HSMP 0x002000
-#define HWCAP_TRACE 0x004000
-#define HWCAP_DIV 0x008000
-#define HWCAP_MAC 0x010000
-#define HWCAP_L2C 0x020000
-#define HWCAP_FPU_DP 0x040000
-#define HWCAP_V2 0x080000
-#define HWCAP_DX_REGS 0x100000
-#define HWCAP_HWPRE 0x200000
-
-unsigned long cpu_id, cpu_rev, cpu_cfgid;
-bool has_fpu = false;
-char cpu_series;
-char *endianness = NULL;
-
-unsigned int __atags_pointer __initdata;
-unsigned int elf_hwcap;
-EXPORT_SYMBOL(elf_hwcap);
-
-/*
- * The following string table, must sync with HWCAP_xx bitmask,
- * which is defined above
- */
-static const char *hwcap_str[] = {
- "mfusr_pc",
- "perf1",
- "perf2",
- "fpu",
- "audio",
- "16b",
- "string",
- "reduced_regs",
- "video",
- "encrypt",
- "edm",
- "lmdma",
- "pfm",
- "hsmp",
- "trace",
- "div",
- "mac",
- "l2c",
- "fpu_dp",
- "v2",
- "dx_regs",
- "hw_pre",
- NULL,
-};
-
-#ifdef CONFIG_CPU_DCACHE_WRITETHROUGH
-#define WRITE_METHOD "write through"
-#else
-#define WRITE_METHOD "write back"
-#endif
-
-struct cache_info L1_cache_info[2];
-static void __init dump_cpu_info(int cpu)
-{
- int i, p = 0;
- char str[sizeof(hwcap_str) + 16];
-
- for (i = 0; hwcap_str[i]; i++) {
- if (elf_hwcap & (1 << i)) {
- sprintf(str + p, "%s ", hwcap_str[i]);
- p += strlen(hwcap_str[i]) + 1;
- }
- }
-
- pr_info("CPU%d Features: %s\n", cpu, str);
-
- L1_cache_info[ICACHE].ways = CACHE_WAY(ICACHE);
- L1_cache_info[ICACHE].line_size = CACHE_LINE_SIZE(ICACHE);
- L1_cache_info[ICACHE].sets = CACHE_SET(ICACHE);
- L1_cache_info[ICACHE].size =
- L1_cache_info[ICACHE].ways * L1_cache_info[ICACHE].line_size *
- L1_cache_info[ICACHE].sets / 1024;
- pr_info("L1I:%dKB/%dS/%dW/%dB\n", L1_cache_info[ICACHE].size,
- L1_cache_info[ICACHE].sets, L1_cache_info[ICACHE].ways,
- L1_cache_info[ICACHE].line_size);
- L1_cache_info[DCACHE].ways = CACHE_WAY(DCACHE);
- L1_cache_info[DCACHE].line_size = CACHE_LINE_SIZE(DCACHE);
- L1_cache_info[DCACHE].sets = CACHE_SET(DCACHE);
- L1_cache_info[DCACHE].size =
- L1_cache_info[DCACHE].ways * L1_cache_info[DCACHE].line_size *
- L1_cache_info[DCACHE].sets / 1024;
- pr_info("L1D:%dKB/%dS/%dW/%dB\n", L1_cache_info[DCACHE].size,
- L1_cache_info[DCACHE].sets, L1_cache_info[DCACHE].ways,
- L1_cache_info[DCACHE].line_size);
- pr_info("L1 D-Cache is %s\n", WRITE_METHOD);
- if (L1_cache_info[DCACHE].size != L1_CACHE_BYTES)
- pr_crit
- ("The cache line size(%d) of this processor is not the same as L1_CACHE_BYTES(%d).\n",
- L1_cache_info[DCACHE].size, L1_CACHE_BYTES);
-#ifdef CONFIG_CPU_CACHE_ALIASING
- {
- int aliasing_num;
- aliasing_num =
- L1_cache_info[ICACHE].size * 1024 / PAGE_SIZE /
- L1_cache_info[ICACHE].ways;
- L1_cache_info[ICACHE].aliasing_num = aliasing_num;
- L1_cache_info[ICACHE].aliasing_mask =
- (aliasing_num - 1) << PAGE_SHIFT;
- aliasing_num =
- L1_cache_info[DCACHE].size * 1024 / PAGE_SIZE /
- L1_cache_info[DCACHE].ways;
- L1_cache_info[DCACHE].aliasing_num = aliasing_num;
- L1_cache_info[DCACHE].aliasing_mask =
- (aliasing_num - 1) << PAGE_SHIFT;
- }
-#endif
-#ifdef CONFIG_FPU
- /* Disable fpu and enable when it is used. */
- if (has_fpu)
- disable_fpu();
-#endif
-}
-
-static void __init setup_cpuinfo(void)
-{
- unsigned long tmp = 0, cpu_name;
-
- cpu_dcache_inval_all();
- cpu_icache_inval_all();
- __nds32__isb();
-
- cpu_id = (__nds32__mfsr(NDS32_SR_CPU_VER) & CPU_VER_mskCPUID) >> CPU_VER_offCPUID;
- cpu_name = ((cpu_id) & 0xf0) >> 4;
- cpu_series = cpu_name ? cpu_name - 10 + 'A' : 'N';
- cpu_id = cpu_id & 0xf;
- cpu_rev = (__nds32__mfsr(NDS32_SR_CPU_VER) & CPU_VER_mskREV) >> CPU_VER_offREV;
- cpu_cfgid = (__nds32__mfsr(NDS32_SR_CPU_VER) & CPU_VER_mskCFGID) >> CPU_VER_offCFGID;
-
- pr_info("CPU:%c%ld, CPU_VER 0x%08x(id %lu, rev %lu, cfg %lu)\n",
- cpu_series, cpu_id, __nds32__mfsr(NDS32_SR_CPU_VER), cpu_id, cpu_rev, cpu_cfgid);
-
- elf_hwcap |= HWCAP_MFUSR_PC;
-
- if (((__nds32__mfsr(NDS32_SR_MSC_CFG) & MSC_CFG_mskBASEV) >> MSC_CFG_offBASEV) == 0) {
- if (__nds32__mfsr(NDS32_SR_MSC_CFG) & MSC_CFG_mskDIV)
- elf_hwcap |= HWCAP_DIV;
-
- if ((__nds32__mfsr(NDS32_SR_MSC_CFG) & MSC_CFG_mskMAC)
- || (cpu_id == 12 && cpu_rev < 4))
- elf_hwcap |= HWCAP_MAC;
- } else {
- elf_hwcap |= HWCAP_V2;
- elf_hwcap |= HWCAP_DIV;
- elf_hwcap |= HWCAP_MAC;
- }
-
- if (cpu_cfgid & 0x0001)
- elf_hwcap |= HWCAP_EXT;
-
- if (cpu_cfgid & 0x0002)
- elf_hwcap |= HWCAP_BASE16;
-
- if (cpu_cfgid & 0x0004)
- elf_hwcap |= HWCAP_EXT2;
-
- if (cpu_cfgid & 0x0008) {
- elf_hwcap |= HWCAP_FPU;
- has_fpu = true;
- }
- if (cpu_cfgid & 0x0010)
- elf_hwcap |= HWCAP_STRING;
-
- if (__nds32__mfsr(NDS32_SR_MMU_CFG) & MMU_CFG_mskDE)
- endianness = "MSB";
- else
- endianness = "LSB";
-
- if (__nds32__mfsr(NDS32_SR_MSC_CFG) & MSC_CFG_mskEDM)
- elf_hwcap |= HWCAP_EDM;
-
- if (__nds32__mfsr(NDS32_SR_MSC_CFG) & MSC_CFG_mskLMDMA)
- elf_hwcap |= HWCAP_LMDMA;
-
- if (__nds32__mfsr(NDS32_SR_MSC_CFG) & MSC_CFG_mskPFM)
- elf_hwcap |= HWCAP_PFM;
-
- if (__nds32__mfsr(NDS32_SR_MSC_CFG) & MSC_CFG_mskHSMP)
- elf_hwcap |= HWCAP_HSMP;
-
- if (__nds32__mfsr(NDS32_SR_MSC_CFG) & MSC_CFG_mskTRACE)
- elf_hwcap |= HWCAP_TRACE;
-
- if (__nds32__mfsr(NDS32_SR_MSC_CFG) & MSC_CFG_mskAUDIO)
- elf_hwcap |= HWCAP_AUDIO;
-
- if (__nds32__mfsr(NDS32_SR_MSC_CFG) & MSC_CFG_mskL2C)
- elf_hwcap |= HWCAP_L2C;
-
-#ifdef CONFIG_HW_PRE
- if (__nds32__mfsr(NDS32_SR_MISC_CTL) & MISC_CTL_makHWPRE_EN)
- elf_hwcap |= HWCAP_HWPRE;
-#endif
-
- tmp = __nds32__mfsr(NDS32_SR_CACHE_CTL);
- if (!IS_ENABLED(CONFIG_CPU_DCACHE_DISABLE))
- tmp |= CACHE_CTL_mskDC_EN;
-
- if (!IS_ENABLED(CONFIG_CPU_ICACHE_DISABLE))
- tmp |= CACHE_CTL_mskIC_EN;
- __nds32__mtsr_isb(tmp, NDS32_SR_CACHE_CTL);
-
- dump_cpu_info(smp_processor_id());
-}
-
-static void __init setup_memory(void)
-{
- unsigned long ram_start_pfn;
- unsigned long free_ram_start_pfn;
- phys_addr_t memory_start, memory_end;
-
- memory_end = memory_start = 0;
-
- /* Find main memory where is the kernel */
- memory_start = memblock_start_of_DRAM();
- memory_end = memblock_end_of_DRAM();
-
- if (!memory_end) {
- panic("No memory!");
- }
-
- ram_start_pfn = PFN_UP(memblock_start_of_DRAM());
- /* free_ram_start_pfn is first page after kernel */
- free_ram_start_pfn = PFN_UP(__pa(&_end));
- max_pfn = PFN_DOWN(memblock_end_of_DRAM());
- /* it could update max_pfn */
- if (max_pfn - ram_start_pfn <= MAXMEM_PFN)
- max_low_pfn = max_pfn;
- else {
- max_low_pfn = MAXMEM_PFN + ram_start_pfn;
- if (!IS_ENABLED(CONFIG_HIGHMEM))
- max_pfn = MAXMEM_PFN + ram_start_pfn;
- }
- /* high_memory is related with VMALLOC */
- high_memory = (void *)__va(max_low_pfn * PAGE_SIZE);
- min_low_pfn = free_ram_start_pfn;
-
- /*
- * initialize the boot-time allocator (with low memory only).
- *
- * This makes the memory from the end of the kernel to the end of
- * RAM usable.
- */
- memblock_set_bottom_up(true);
- memblock_reserve(PFN_PHYS(ram_start_pfn), PFN_PHYS(free_ram_start_pfn - ram_start_pfn));
-
- early_init_fdt_reserve_self();
- early_init_fdt_scan_reserved_mem();
-
- memblock_dump_all();
-}
-
-void __init setup_arch(char **cmdline_p)
-{
- early_init_devtree(__atags_pointer ? \
- phys_to_virt(__atags_pointer) : __dtb_start);
-
- setup_cpuinfo();
-
- setup_initial_init_mm(_stext, _etext, _edata, _end);
-
- /* setup bootmem allocator */
- setup_memory();
-
- /* paging_init() sets up the MMU and marks all pages as reserved */
- paging_init();
-
- /* invalidate all TLB entries because the new mapping is created */
- __nds32__tlbop_flua();
-
- /* use generic way to parse */
- parse_early_param();
-
- unflatten_and_copy_device_tree();
-
- *cmdline_p = boot_command_line;
- early_trap_init();
-}
-
-static int c_show(struct seq_file *m, void *v)
-{
- int i;
-
- seq_printf(m, "Processor\t: %c%ld (id %lu, rev %lu, cfg %lu)\n",
- cpu_series, cpu_id, cpu_id, cpu_rev, cpu_cfgid);
-
- seq_printf(m, "L1I\t\t: %luKB/%luS/%luW/%luB\n",
- CACHE_SET(ICACHE) * CACHE_WAY(ICACHE) *
- CACHE_LINE_SIZE(ICACHE) / 1024, CACHE_SET(ICACHE),
- CACHE_WAY(ICACHE), CACHE_LINE_SIZE(ICACHE));
-
- seq_printf(m, "L1D\t\t: %luKB/%luS/%luW/%luB\n",
- CACHE_SET(DCACHE) * CACHE_WAY(DCACHE) *
- CACHE_LINE_SIZE(DCACHE) / 1024, CACHE_SET(DCACHE),
- CACHE_WAY(DCACHE), CACHE_LINE_SIZE(DCACHE));
-
- seq_printf(m, "BogoMIPS\t: %lu.%02lu\n",
- loops_per_jiffy / (500000 / HZ),
- (loops_per_jiffy / (5000 / HZ)) % 100);
-
- /* dump out the processor features */
- seq_puts(m, "Features\t: ");
-
- for (i = 0; hwcap_str[i]; i++)
- if (elf_hwcap & (1 << i))
- seq_printf(m, "%s ", hwcap_str[i]);
-
- seq_puts(m, "\n\n");
-
- return 0;
-}
-
-static void *c_start(struct seq_file *m, loff_t * pos)
-{
- return *pos < 1 ? (void *)1 : NULL;
-}
-
-static void *c_next(struct seq_file *m, void *v, loff_t * pos)
-{
- ++*pos;
- return NULL;
-}
-
-static void c_stop(struct seq_file *m, void *v)
-{
-}
-
-struct seq_operations cpuinfo_op = {
- .start = c_start,
- .next = c_next,
- .stop = c_stop,
- .show = c_show
-};
diff --git a/arch/nds32/kernel/signal.c b/arch/nds32/kernel/signal.c
deleted file mode 100644
index 7e3ca430a223..000000000000
--- a/arch/nds32/kernel/signal.c
+++ /dev/null
@@ -1,384 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <linux/errno.h>
-#include <linux/signal.h>
-#include <linux/ptrace.h>
-#include <linux/personality.h>
-#include <linux/freezer.h>
-#include <linux/tracehook.h>
-#include <linux/uaccess.h>
-
-#include <asm/cacheflush.h>
-#include <asm/ucontext.h>
-#include <asm/unistd.h>
-#include <asm/fpu.h>
-
-#include <asm/ptrace.h>
-#include <asm/vdso.h>
-
-struct rt_sigframe {
- struct siginfo info;
- struct ucontext uc;
-};
-#if IS_ENABLED(CONFIG_FPU)
-static inline int restore_sigcontext_fpu(struct pt_regs *regs,
- struct sigcontext __user *sc)
-{
- struct task_struct *tsk = current;
- unsigned long used_math_flag;
- int ret = 0;
-
- clear_used_math();
- __get_user_error(used_math_flag, &sc->used_math_flag, ret);
-
- if (!used_math_flag)
- return 0;
- set_used_math();
-
-#if IS_ENABLED(CONFIG_LAZY_FPU)
- preempt_disable();
- if (current == last_task_used_math) {
- last_task_used_math = NULL;
- disable_ptreg_fpu(regs);
- }
- preempt_enable();
-#else
- clear_fpu(regs);
-#endif
-
- return __copy_from_user(&tsk->thread.fpu, &sc->fpu,
- sizeof(struct fpu_struct));
-}
-
-static inline int setup_sigcontext_fpu(struct pt_regs *regs,
- struct sigcontext __user *sc)
-{
- struct task_struct *tsk = current;
- int ret = 0;
-
- __put_user_error(used_math(), &sc->used_math_flag, ret);
-
- if (!used_math())
- return ret;
-
- preempt_disable();
-#if IS_ENABLED(CONFIG_LAZY_FPU)
- if (last_task_used_math == tsk)
- save_fpu(last_task_used_math);
-#else
- unlazy_fpu(tsk);
-#endif
- ret = __copy_to_user(&sc->fpu, &tsk->thread.fpu,
- sizeof(struct fpu_struct));
- preempt_enable();
- return ret;
-}
-#endif
-
-static int restore_sigframe(struct pt_regs *regs,
- struct rt_sigframe __user * sf)
-{
- sigset_t set;
- int err;
-
- err = __copy_from_user(&set, &sf->uc.uc_sigmask, sizeof(set));
- if (err == 0) {
- set_current_blocked(&set);
- }
-
- __get_user_error(regs->uregs[0], &sf->uc.uc_mcontext.nds32_r0, err);
- __get_user_error(regs->uregs[1], &sf->uc.uc_mcontext.nds32_r1, err);
- __get_user_error(regs->uregs[2], &sf->uc.uc_mcontext.nds32_r2, err);
- __get_user_error(regs->uregs[3], &sf->uc.uc_mcontext.nds32_r3, err);
- __get_user_error(regs->uregs[4], &sf->uc.uc_mcontext.nds32_r4, err);
- __get_user_error(regs->uregs[5], &sf->uc.uc_mcontext.nds32_r5, err);
- __get_user_error(regs->uregs[6], &sf->uc.uc_mcontext.nds32_r6, err);
- __get_user_error(regs->uregs[7], &sf->uc.uc_mcontext.nds32_r7, err);
- __get_user_error(regs->uregs[8], &sf->uc.uc_mcontext.nds32_r8, err);
- __get_user_error(regs->uregs[9], &sf->uc.uc_mcontext.nds32_r9, err);
- __get_user_error(regs->uregs[10], &sf->uc.uc_mcontext.nds32_r10, err);
- __get_user_error(regs->uregs[11], &sf->uc.uc_mcontext.nds32_r11, err);
- __get_user_error(regs->uregs[12], &sf->uc.uc_mcontext.nds32_r12, err);
- __get_user_error(regs->uregs[13], &sf->uc.uc_mcontext.nds32_r13, err);
- __get_user_error(regs->uregs[14], &sf->uc.uc_mcontext.nds32_r14, err);
- __get_user_error(regs->uregs[15], &sf->uc.uc_mcontext.nds32_r15, err);
- __get_user_error(regs->uregs[16], &sf->uc.uc_mcontext.nds32_r16, err);
- __get_user_error(regs->uregs[17], &sf->uc.uc_mcontext.nds32_r17, err);
- __get_user_error(regs->uregs[18], &sf->uc.uc_mcontext.nds32_r18, err);
- __get_user_error(regs->uregs[19], &sf->uc.uc_mcontext.nds32_r19, err);
- __get_user_error(regs->uregs[20], &sf->uc.uc_mcontext.nds32_r20, err);
- __get_user_error(regs->uregs[21], &sf->uc.uc_mcontext.nds32_r21, err);
- __get_user_error(regs->uregs[22], &sf->uc.uc_mcontext.nds32_r22, err);
- __get_user_error(regs->uregs[23], &sf->uc.uc_mcontext.nds32_r23, err);
- __get_user_error(regs->uregs[24], &sf->uc.uc_mcontext.nds32_r24, err);
- __get_user_error(regs->uregs[25], &sf->uc.uc_mcontext.nds32_r25, err);
-
- __get_user_error(regs->fp, &sf->uc.uc_mcontext.nds32_fp, err);
- __get_user_error(regs->gp, &sf->uc.uc_mcontext.nds32_gp, err);
- __get_user_error(regs->lp, &sf->uc.uc_mcontext.nds32_lp, err);
- __get_user_error(regs->sp, &sf->uc.uc_mcontext.nds32_sp, err);
- __get_user_error(regs->ipc, &sf->uc.uc_mcontext.nds32_ipc, err);
-#if defined(CONFIG_HWZOL)
- __get_user_error(regs->lc, &sf->uc.uc_mcontext.zol.nds32_lc, err);
- __get_user_error(regs->le, &sf->uc.uc_mcontext.zol.nds32_le, err);
- __get_user_error(regs->lb, &sf->uc.uc_mcontext.zol.nds32_lb, err);
-#endif
-#if IS_ENABLED(CONFIG_FPU)
- err |= restore_sigcontext_fpu(regs, &sf->uc.uc_mcontext);
-#endif
- /*
- * Avoid sys_rt_sigreturn() restarting.
- */
- forget_syscall(regs);
- return err;
-}
-
-asmlinkage long sys_rt_sigreturn(struct pt_regs *regs)
-{
- struct rt_sigframe __user *frame;
-
- /* Always make any pending restarted system calls return -EINTR */
- current->restart_block.fn = do_no_restart_syscall;
-
- /*
- * Since we stacked the signal on a 64-bit boundary,
- * then 'sp' should be two-word aligned here. If it's
- * not, then the user is trying to mess with us.
- */
- if (regs->sp & 7)
- goto badframe;
-
- frame = (struct rt_sigframe __user *)regs->sp;
-
- if (!access_ok(frame, sizeof(*frame)))
- goto badframe;
-
- if (restore_sigframe(regs, frame))
- goto badframe;
-
- if (restore_altstack(&frame->uc.uc_stack))
- goto badframe;
-
- return regs->uregs[0];
-
-badframe:
- force_sig(SIGSEGV);
- return 0;
-}
-
-static int
-setup_sigframe(struct rt_sigframe __user * sf, struct pt_regs *regs,
- sigset_t * set)
-{
- int err = 0;
-
- __put_user_error(regs->uregs[0], &sf->uc.uc_mcontext.nds32_r0, err);
- __put_user_error(regs->uregs[1], &sf->uc.uc_mcontext.nds32_r1, err);
- __put_user_error(regs->uregs[2], &sf->uc.uc_mcontext.nds32_r2, err);
- __put_user_error(regs->uregs[3], &sf->uc.uc_mcontext.nds32_r3, err);
- __put_user_error(regs->uregs[4], &sf->uc.uc_mcontext.nds32_r4, err);
- __put_user_error(regs->uregs[5], &sf->uc.uc_mcontext.nds32_r5, err);
- __put_user_error(regs->uregs[6], &sf->uc.uc_mcontext.nds32_r6, err);
- __put_user_error(regs->uregs[7], &sf->uc.uc_mcontext.nds32_r7, err);
- __put_user_error(regs->uregs[8], &sf->uc.uc_mcontext.nds32_r8, err);
- __put_user_error(regs->uregs[9], &sf->uc.uc_mcontext.nds32_r9, err);
- __put_user_error(regs->uregs[10], &sf->uc.uc_mcontext.nds32_r10, err);
- __put_user_error(regs->uregs[11], &sf->uc.uc_mcontext.nds32_r11, err);
- __put_user_error(regs->uregs[12], &sf->uc.uc_mcontext.nds32_r12, err);
- __put_user_error(regs->uregs[13], &sf->uc.uc_mcontext.nds32_r13, err);
- __put_user_error(regs->uregs[14], &sf->uc.uc_mcontext.nds32_r14, err);
- __put_user_error(regs->uregs[15], &sf->uc.uc_mcontext.nds32_r15, err);
- __put_user_error(regs->uregs[16], &sf->uc.uc_mcontext.nds32_r16, err);
- __put_user_error(regs->uregs[17], &sf->uc.uc_mcontext.nds32_r17, err);
- __put_user_error(regs->uregs[18], &sf->uc.uc_mcontext.nds32_r18, err);
- __put_user_error(regs->uregs[19], &sf->uc.uc_mcontext.nds32_r19, err);
- __put_user_error(regs->uregs[20], &sf->uc.uc_mcontext.nds32_r20, err);
-
- __put_user_error(regs->uregs[21], &sf->uc.uc_mcontext.nds32_r21, err);
- __put_user_error(regs->uregs[22], &sf->uc.uc_mcontext.nds32_r22, err);
- __put_user_error(regs->uregs[23], &sf->uc.uc_mcontext.nds32_r23, err);
- __put_user_error(regs->uregs[24], &sf->uc.uc_mcontext.nds32_r24, err);
- __put_user_error(regs->uregs[25], &sf->uc.uc_mcontext.nds32_r25, err);
- __put_user_error(regs->fp, &sf->uc.uc_mcontext.nds32_fp, err);
- __put_user_error(regs->gp, &sf->uc.uc_mcontext.nds32_gp, err);
- __put_user_error(regs->lp, &sf->uc.uc_mcontext.nds32_lp, err);
- __put_user_error(regs->sp, &sf->uc.uc_mcontext.nds32_sp, err);
- __put_user_error(regs->ipc, &sf->uc.uc_mcontext.nds32_ipc, err);
-#if defined(CONFIG_HWZOL)
- __put_user_error(regs->lc, &sf->uc.uc_mcontext.zol.nds32_lc, err);
- __put_user_error(regs->le, &sf->uc.uc_mcontext.zol.nds32_le, err);
- __put_user_error(regs->lb, &sf->uc.uc_mcontext.zol.nds32_lb, err);
-#endif
-#if IS_ENABLED(CONFIG_FPU)
- err |= setup_sigcontext_fpu(regs, &sf->uc.uc_mcontext);
-#endif
-
- __put_user_error(current->thread.trap_no, &sf->uc.uc_mcontext.trap_no,
- err);
- __put_user_error(current->thread.error_code,
- &sf->uc.uc_mcontext.error_code, err);
- __put_user_error(current->thread.address,
- &sf->uc.uc_mcontext.fault_address, err);
- __put_user_error(set->sig[0], &sf->uc.uc_mcontext.oldmask, err);
-
- err |= __copy_to_user(&sf->uc.uc_sigmask, set, sizeof(*set));
-
- return err;
-}
-
-static inline void __user *get_sigframe(struct ksignal *ksig,
- struct pt_regs *regs, int framesize)
-{
- unsigned long sp;
-
- /* Default to using normal stack */
- sp = regs->sp;
-
- /*
- * If we are on the alternate signal stack and would overflow it, don't.
- * Return an always-bogus address instead so we will die with SIGSEGV.
- */
- if (on_sig_stack(sp) && !likely(on_sig_stack(sp - framesize)))
- return (void __user __force *)(-1UL);
-
- /* This is the X/Open sanctioned signal stack switching. */
- sp = (sigsp(sp, ksig) - framesize);
-
- /*
- * nds32 mandates 8-byte alignment
- */
- sp &= ~0x7UL;
-
- return (void __user *)sp;
-}
-
-static int
-setup_return(struct pt_regs *regs, struct ksignal *ksig, void __user * frame)
-{
- unsigned long handler = (unsigned long)ksig->ka.sa.sa_handler;
- unsigned long retcode;
-
- retcode = VDSO_SYMBOL(current->mm->context.vdso, rt_sigtramp);
- regs->uregs[0] = ksig->sig;
- regs->sp = (unsigned long)frame;
- regs->lp = retcode;
- regs->ipc = handler;
-
- return 0;
-}
-
-static int
-setup_rt_frame(struct ksignal *ksig, sigset_t * set, struct pt_regs *regs)
-{
- struct rt_sigframe __user *frame =
- get_sigframe(ksig, regs, sizeof(*frame));
- int err = 0;
-
- if (!access_ok(frame, sizeof(*frame)))
- return -EFAULT;
-
- __put_user_error(0, &frame->uc.uc_flags, err);
- __put_user_error(NULL, &frame->uc.uc_link, err);
-
- err |= __save_altstack(&frame->uc.uc_stack, regs->sp);
- err |= setup_sigframe(frame, regs, set);
- if (err == 0) {
- setup_return(regs, ksig, frame);
- if (ksig->ka.sa.sa_flags & SA_SIGINFO) {
- err |= copy_siginfo_to_user(&frame->info, &ksig->info);
- regs->uregs[1] = (unsigned long)&frame->info;
- regs->uregs[2] = (unsigned long)&frame->uc;
- }
- }
- return err;
-}
-
-/*
- * OK, we're invoking a handler
- */
-static void handle_signal(struct ksignal *ksig, struct pt_regs *regs)
-{
- int ret;
- sigset_t *oldset = sigmask_to_save();
-
- if (in_syscall(regs)) {
- /* Avoid additional syscall restarting via ret_slow_syscall. */
- forget_syscall(regs);
-
- switch (regs->uregs[0]) {
- case -ERESTART_RESTARTBLOCK:
- case -ERESTARTNOHAND:
- regs->uregs[0] = -EINTR;
- break;
- case -ERESTARTSYS:
- if (!(ksig->ka.sa.sa_flags & SA_RESTART)) {
- regs->uregs[0] = -EINTR;
- break;
- }
- fallthrough;
- case -ERESTARTNOINTR:
- regs->uregs[0] = regs->orig_r0;
- regs->ipc -= 4;
- break;
- }
- }
- /*
- * Set up the stack frame
- */
- ret = setup_rt_frame(ksig, oldset, regs);
-
- signal_setup_done(ret, ksig, 0);
-}
-
-/*
- * Note that 'init' is a special process: it doesn't get signals it doesn't
- * want to handle. Thus you cannot kill init even with a SIGKILL even by
- * mistake.
- *
- * Note that we go through the signals twice: once to check the signals that
- * the kernel can handle, and then we build all the user-level signal handling
- * stack-frames in one go after that.
- */
-static void do_signal(struct pt_regs *regs)
-{
- struct ksignal ksig;
-
- if (get_signal(&ksig)) {
- handle_signal(&ksig, regs);
- return;
- }
-
- /*
- * If we were from a system call, check for system call restarting...
- */
- if (in_syscall(regs)) {
- /* Restart the system call - no handlers present */
-
- /* Avoid additional syscall restarting via ret_slow_syscall. */
- forget_syscall(regs);
-
- switch (regs->uregs[0]) {
- case -ERESTART_RESTARTBLOCK:
- regs->uregs[15] = __NR_restart_syscall;
- fallthrough;
- case -ERESTARTNOHAND:
- case -ERESTARTSYS:
- case -ERESTARTNOINTR:
- regs->uregs[0] = regs->orig_r0;
- regs->ipc -= 0x4;
- break;
- }
- }
- restore_saved_sigmask();
-}
-
-asmlinkage void
-do_notify_resume(struct pt_regs *regs, unsigned int thread_flags)
-{
- if (thread_flags & (_TIF_SIGPENDING | _TIF_NOTIFY_SIGNAL))
- do_signal(regs);
-
- if (thread_flags & _TIF_NOTIFY_RESUME)
- tracehook_notify_resume(regs);
-}
diff --git a/arch/nds32/kernel/sleep.S b/arch/nds32/kernel/sleep.S
deleted file mode 100644
index ca4e61f3656f..000000000000
--- a/arch/nds32/kernel/sleep.S
+++ /dev/null
@@ -1,131 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/* Copyright (C) 2017 Andes Technology Corporation */
-
-#include <asm/memory.h>
-
-.data
-.global sp_tmp
-sp_tmp:
-.long
-
-.text
-.globl suspend2ram
-.globl cpu_resume
-
-suspend2ram:
- pushm $r0, $r31
-#if defined(CONFIG_HWZOL)
- mfusr $r0, $lc
- mfusr $r1, $le
- mfusr $r2, $lb
-#endif
- mfsr $r3, $mr0
- mfsr $r4, $mr1
- mfsr $r5, $mr4
- mfsr $r6, $mr6
- mfsr $r7, $mr7
- mfsr $r8, $mr8
- mfsr $r9, $ir0
- mfsr $r10, $ir1
- mfsr $r11, $ir2
- mfsr $r12, $ir3
- mfsr $r13, $ir9
- mfsr $r14, $ir10
- mfsr $r15, $ir12
- mfsr $r16, $ir13
- mfsr $r17, $ir14
- mfsr $r18, $ir15
- pushm $r0, $r19
-#if defined(CONFIG_FPU)
- jal store_fpu_for_suspend
-#endif
- tlbop FlushAll
- isb
-
- // transfer $sp from va to pa
- sethi $r0, hi20(PAGE_OFFSET)
- ori $r0, $r0, lo12(PAGE_OFFSET)
- movi $r2, PHYS_OFFSET
- sub $r1, $sp, $r0
- add $r2, $r1, $r2
-
- // store pa($sp) to sp_tmp
- sethi $r1, hi20(sp_tmp)
- swi $r2, [$r1 + lo12(sp_tmp)]
-
- pushm $r16, $r25
- pushm $r29, $r30
-#ifdef CONFIG_CACHE_L2
- jal dcache_wb_all_level
-#else
- jal cpu_dcache_wb_all
-#endif
- popm $r29, $r30
- popm $r16, $r25
-
- // get wake_mask and loop in standby
- la $r1, wake_mask
- lwi $r1, [$r1]
-self_loop:
- standby wake_grant
- mfsr $r2, $ir15
- and $r2, $r1, $r2
- beqz $r2, self_loop
-
- // set ipc to resume address
- la $r1, resume_addr
- lwi $r1, [$r1]
- mtsr $r1, $ipc
- isb
-
- // reset psw, turn off the address translation
- li $r2, 0x7000a
- mtsr $r2, $ipsw
- isb
-
- iret
-cpu_resume:
- // translate the address of sp_tmp variable to pa
- la $r1, sp_tmp
- sethi $r0, hi20(PAGE_OFFSET)
- ori $r0, $r0, lo12(PAGE_OFFSET)
- movi $r2, PHYS_OFFSET
- sub $r1, $r1, $r0
- add $r1, $r1, $r2
-
- // access the sp_tmp to get stack pointer
- lwi $sp, [$r1]
-
- popm $r0, $r19
-#if defined(CONFIG_HWZOL)
- mtusr $r0, $lb
- mtusr $r1, $lc
- mtusr $r2, $le
-#endif
- mtsr $r3, $mr0
- mtsr $r4, $mr1
- mtsr $r5, $mr4
- mtsr $r6, $mr6
- mtsr $r7, $mr7
- mtsr $r8, $mr8
- // set original psw to ipsw
- mtsr $r9, $ir1
-
- mtsr $r11, $ir2
- mtsr $r12, $ir3
-
- // set ipc to RR
- la $r13, RR
- mtsr $r13, $ir9
-
- mtsr $r14, $ir10
- mtsr $r15, $ir12
- mtsr $r16, $ir13
- mtsr $r17, $ir14
- mtsr $r18, $ir15
- popm $r0, $r31
-
- isb
- iret
-RR:
- ret
diff --git a/arch/nds32/kernel/stacktrace.c b/arch/nds32/kernel/stacktrace.c
deleted file mode 100644
index d974c0c1c65f..000000000000
--- a/arch/nds32/kernel/stacktrace.c
+++ /dev/null
@@ -1,53 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <linux/sched/debug.h>
-#include <linux/sched/task_stack.h>
-#include <linux/stacktrace.h>
-#include <linux/ftrace.h>
-
-void save_stack_trace(struct stack_trace *trace)
-{
- save_stack_trace_tsk(current, trace);
-}
-EXPORT_SYMBOL_GPL(save_stack_trace);
-
-void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
-{
- unsigned long *fpn;
- int skip = trace->skip;
- int savesched;
- int graph_idx = 0;
-
- if (tsk == current) {
- __asm__ __volatile__("\tori\t%0, $fp, #0\n":"=r"(fpn));
- savesched = 1;
- } else {
- fpn = (unsigned long *)thread_saved_fp(tsk);
- savesched = 0;
- }
-
- while (!kstack_end(fpn) && !((unsigned long)fpn & 0x3)
- && (fpn >= (unsigned long *)TASK_SIZE)) {
- unsigned long lpp, fpp;
-
- lpp = fpn[LP_OFFSET];
- fpp = fpn[FP_OFFSET];
- if (!__kernel_text_address(lpp))
- break;
- else
- lpp = ftrace_graph_ret_addr(tsk, &graph_idx, lpp, NULL);
-
- if (savesched || !in_sched_functions(lpp)) {
- if (skip) {
- skip--;
- } else {
- trace->entries[trace->nr_entries++] = lpp;
- if (trace->nr_entries >= trace->max_entries)
- break;
- }
- }
- fpn = (unsigned long *)fpp;
- }
-}
-EXPORT_SYMBOL_GPL(save_stack_trace_tsk);
diff --git a/arch/nds32/kernel/sys_nds32.c b/arch/nds32/kernel/sys_nds32.c
deleted file mode 100644
index cb2d1e219bb3..000000000000
--- a/arch/nds32/kernel/sys_nds32.c
+++ /dev/null
@@ -1,84 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <linux/syscalls.h>
-#include <linux/uaccess.h>
-
-#include <asm/cachectl.h>
-#include <asm/proc-fns.h>
-#include <asm/fpu.h>
-#include <asm/fp_udfiex_crtl.h>
-
-SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,
- unsigned long, prot, unsigned long, flags,
- unsigned long, fd, unsigned long, pgoff)
-{
- if (pgoff & (~PAGE_MASK >> 12))
- return -EINVAL;
-
- return sys_mmap_pgoff(addr, len, prot, flags, fd,
- pgoff >> (PAGE_SHIFT - 12));
-}
-
-SYSCALL_DEFINE4(fadvise64_64_wrapper,int, fd, int, advice, loff_t, offset,
- loff_t, len)
-{
- return sys_fadvise64_64(fd, offset, len, advice);
-}
-
-SYSCALL_DEFINE3(cacheflush, unsigned int, start, unsigned int, end, int, cache)
-{
- struct vm_area_struct *vma;
- bool flushi = true, wbd = true;
-
- vma = find_vma(current->mm, start);
- if (!vma)
- return -EFAULT;
- switch (cache) {
- case ICACHE:
- wbd = false;
- break;
- case DCACHE:
- flushi = false;
- break;
- case BCACHE:
- break;
- default:
- return -EINVAL;
- }
- cpu_cache_wbinval_range_check(vma, start, end, flushi, wbd);
-
- return 0;
-}
-
-SYSCALL_DEFINE2(fp_udfiex_crtl, unsigned int, cmd, unsigned int, act)
-{
-#if IS_ENABLED(CONFIG_SUPPORT_DENORMAL_ARITHMETIC)
- int old_udf_iex;
-
- if (!used_math()) {
- load_fpu(&init_fpuregs);
- current->thread.fpu.UDF_IEX_trap = init_fpuregs.UDF_IEX_trap;
- set_used_math();
- }
-
- old_udf_iex = current->thread.fpu.UDF_IEX_trap;
- act &= (FPCSR_mskUDFE | FPCSR_mskIEXE);
-
- switch (cmd) {
- case DISABLE_UDF_IEX_TRAP:
- current->thread.fpu.UDF_IEX_trap &= ~act;
- break;
- case ENABLE_UDF_IEX_TRAP:
- current->thread.fpu.UDF_IEX_trap |= act;
- break;
- case GET_UDF_IEX_TRAP:
- break;
- default:
- return -EINVAL;
- }
- return old_udf_iex;
-#else
- return -ENOTSUPP;
-#endif
-}
diff --git a/arch/nds32/kernel/syscall_table.c b/arch/nds32/kernel/syscall_table.c
deleted file mode 100644
index 7879c061b87f..000000000000
--- a/arch/nds32/kernel/syscall_table.c
+++ /dev/null
@@ -1,17 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <linux/syscalls.h>
-#include <linux/signal.h>
-#include <linux/unistd.h>
-#include <asm/syscalls.h>
-
-#undef __SYSCALL
-#define __SYSCALL(nr, call) [nr] = (call),
-
-#define sys_rt_sigreturn sys_rt_sigreturn_wrapper
-#define sys_fadvise64_64 sys_fadvise64_64_wrapper
-void *sys_call_table[__NR_syscalls] __aligned(8192) = {
- [0 ... __NR_syscalls - 1] = sys_ni_syscall,
-#include <asm/unistd.h>
-};
diff --git a/arch/nds32/kernel/time.c b/arch/nds32/kernel/time.c
deleted file mode 100644
index 574a3d0a8539..000000000000
--- a/arch/nds32/kernel/time.c
+++ /dev/null
@@ -1,11 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <linux/clocksource.h>
-#include <linux/of_clk.h>
-
-void __init time_init(void)
-{
- of_clk_init(NULL);
- timer_probe();
-}
diff --git a/arch/nds32/kernel/traps.c b/arch/nds32/kernel/traps.c
deleted file mode 100644
index c0a8f3344fb9..000000000000
--- a/arch/nds32/kernel/traps.c
+++ /dev/null
@@ -1,354 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <linux/module.h>
-#include <linux/personality.h>
-#include <linux/kallsyms.h>
-#include <linux/hardirq.h>
-#include <linux/kdebug.h>
-#include <linux/sched/task_stack.h>
-#include <linux/uaccess.h>
-#include <linux/ftrace.h>
-
-#include <asm/proc-fns.h>
-#include <asm/unistd.h>
-#include <asm/fpu.h>
-
-#include <linux/ptrace.h>
-#include <nds32_intrinsic.h>
-
-extern void show_pte(struct mm_struct *mm, unsigned long addr);
-
-/*
- * Dump out the contents of some memory nicely...
- */
-void dump_mem(const char *lvl, unsigned long bottom, unsigned long top)
-{
- unsigned long first;
- int i;
-
- pr_emerg("%s(0x%08lx to 0x%08lx)\n", lvl, bottom, top);
-
- for (first = bottom & ~31; first < top; first += 32) {
- unsigned long p;
- char str[sizeof(" 12345678") * 8 + 1];
-
- memset(str, ' ', sizeof(str));
- str[sizeof(str) - 1] = '\0';
-
- for (p = first, i = 0; i < 8 && p < top; i++, p += 4) {
- if (p >= bottom && p < top) {
- unsigned long val;
-
- if (get_kernel_nofault(val,
- (unsigned long *)p) == 0)
- sprintf(str + i * 9, " %08lx", val);
- else
- sprintf(str + i * 9, " ????????");
- }
- }
- pr_emerg("%s%04lx:%s\n", lvl, first & 0xffff, str);
- }
-}
-
-EXPORT_SYMBOL(dump_mem);
-
-#define LOOP_TIMES (100)
-static void __dump(struct task_struct *tsk, unsigned long *base_reg,
- const char *loglvl)
-{
- unsigned long ret_addr;
- int cnt = LOOP_TIMES, graph = 0;
- printk("%sCall Trace:\n", loglvl);
- if (!IS_ENABLED(CONFIG_FRAME_POINTER)) {
- while (!kstack_end(base_reg)) {
- ret_addr = *base_reg++;
- if (__kernel_text_address(ret_addr)) {
- ret_addr = ftrace_graph_ret_addr(
- tsk, &graph, ret_addr, NULL);
- print_ip_sym(loglvl, ret_addr);
- }
- if (--cnt < 0)
- break;
- }
- } else {
- while (!kstack_end((void *)base_reg) &&
- !((unsigned long)base_reg & 0x3) &&
- ((unsigned long)base_reg >= TASK_SIZE)) {
- unsigned long next_fp;
- ret_addr = base_reg[LP_OFFSET];
- next_fp = base_reg[FP_OFFSET];
- if (__kernel_text_address(ret_addr)) {
-
- ret_addr = ftrace_graph_ret_addr(
- tsk, &graph, ret_addr, NULL);
- print_ip_sym(loglvl, ret_addr);
- }
- if (--cnt < 0)
- break;
- base_reg = (unsigned long *)next_fp;
- }
- }
- printk("%s\n", loglvl);
-}
-
-void show_stack(struct task_struct *tsk, unsigned long *sp, const char *loglvl)
-{
- unsigned long *base_reg;
-
- if (!tsk)
- tsk = current;
- if (!IS_ENABLED(CONFIG_FRAME_POINTER)) {
- if (tsk != current)
- base_reg = (unsigned long *)(tsk->thread.cpu_context.sp);
- else
- __asm__ __volatile__("\tori\t%0, $sp, #0\n":"=r"(base_reg));
- } else {
- if (tsk != current)
- base_reg = (unsigned long *)(tsk->thread.cpu_context.fp);
- else
- __asm__ __volatile__("\tori\t%0, $fp, #0\n":"=r"(base_reg));
- }
- __dump(tsk, base_reg, loglvl);
- barrier();
-}
-
-DEFINE_SPINLOCK(die_lock);
-
-/*
- * This function is protected against re-entrancy.
- */
-void __noreturn die(const char *str, struct pt_regs *regs, int err)
-{
- struct task_struct *tsk = current;
- static int die_counter;
-
- console_verbose();
- spin_lock_irq(&die_lock);
- bust_spinlocks(1);
-
- pr_emerg("Internal error: %s: %x [#%d]\n", str, err, ++die_counter);
- print_modules();
- pr_emerg("CPU: %i\n", smp_processor_id());
- show_regs(regs);
- pr_emerg("Process %s (pid: %d, stack limit = 0x%p)\n",
- tsk->comm, tsk->pid, end_of_stack(tsk));
-
- if (!user_mode(regs) || in_interrupt()) {
- dump_mem("Stack: ", regs->sp, (regs->sp + PAGE_SIZE) & PAGE_MASK);
- dump_stack();
- }
-
- bust_spinlocks(0);
- spin_unlock_irq(&die_lock);
- make_task_dead(SIGSEGV);
-}
-
-EXPORT_SYMBOL(die);
-
-void die_if_kernel(const char *str, struct pt_regs *regs, int err)
-{
- if (user_mode(regs))
- return;
-
- die(str, regs, err);
-}
-
-int bad_syscall(int n, struct pt_regs *regs)
-{
- if (current->personality != PER_LINUX) {
- send_sig(SIGSEGV, current, 1);
- return regs->uregs[0];
- }
-
- force_sig_fault(SIGILL, ILL_ILLTRP,
- (void __user *)instruction_pointer(regs) - 4);
- die_if_kernel("Oops - bad syscall", regs, n);
- return regs->uregs[0];
-}
-
-void __pte_error(const char *file, int line, unsigned long val)
-{
- pr_emerg("%s:%d: bad pte %08lx.\n", file, line, val);
-}
-
-void __pmd_error(const char *file, int line, unsigned long val)
-{
- pr_emerg("%s:%d: bad pmd %08lx.\n", file, line, val);
-}
-
-void __pgd_error(const char *file, int line, unsigned long val)
-{
- pr_emerg("%s:%d: bad pgd %08lx.\n", file, line, val);
-}
-
-extern char *exception_vector, *exception_vector_end;
-void __init early_trap_init(void)
-{
- unsigned long ivb = 0;
- unsigned long base = PAGE_OFFSET;
-
- memcpy((unsigned long *)base, (unsigned long *)&exception_vector,
- ((unsigned long)&exception_vector_end -
- (unsigned long)&exception_vector));
- ivb = __nds32__mfsr(NDS32_SR_IVB);
- /* Check platform support. */
- if (((ivb & IVB_mskNIVIC) >> IVB_offNIVIC) < 2)
- panic
- ("IVIC mode is not allowed on the platform with interrupt controller\n");
- __nds32__mtsr((ivb & ~IVB_mskESZ) | (IVB_valESZ16 << IVB_offESZ) |
- IVB_BASE, NDS32_SR_IVB);
- __nds32__mtsr(INT_MASK_INITAIAL_VAL, NDS32_SR_INT_MASK);
-
- /*
- * 0x800 = 128 vectors * 16byte.
- * It should be enough to flush a page.
- */
- cpu_cache_wbinval_page(base, true);
-}
-
-static void send_sigtrap(struct pt_regs *regs, int error_code, int si_code)
-{
- struct task_struct *tsk = current;
-
- tsk->thread.trap_no = ENTRY_DEBUG_RELATED;
- tsk->thread.error_code = error_code;
-
- force_sig_fault(SIGTRAP, si_code,
- (void __user *)instruction_pointer(regs));
-}
-
-void do_debug_trap(unsigned long entry, unsigned long addr,
- unsigned long type, struct pt_regs *regs)
-{
- if (notify_die(DIE_OOPS, "Oops", regs, addr, type, SIGTRAP)
- == NOTIFY_STOP)
- return;
-
- if (user_mode(regs)) {
- /* trap_signal */
- send_sigtrap(regs, 0, TRAP_BRKPT);
- } else {
- /* kernel_trap */
- if (!fixup_exception(regs))
- die("unexpected kernel_trap", regs, 0);
- }
-}
-
-void unhandled_interruption(struct pt_regs *regs)
-{
- pr_emerg("unhandled_interruption\n");
- show_regs(regs);
- if (!user_mode(regs))
- make_task_dead(SIGKILL);
- force_sig(SIGKILL);
-}
-
-void unhandled_exceptions(unsigned long entry, unsigned long addr,
- unsigned long type, struct pt_regs *regs)
-{
- pr_emerg("Unhandled Exception: entry: %lx addr:%lx itype:%lx\n", entry,
- addr, type);
- show_regs(regs);
- if (!user_mode(regs))
- make_task_dead(SIGKILL);
- force_sig(SIGKILL);
-}
-
-extern int do_page_fault(unsigned long entry, unsigned long addr,
- unsigned int error_code, struct pt_regs *regs);
-
-/*
- * 2:DEF dispatch for TLB MISC exception handler
-*/
-
-void do_dispatch_tlb_misc(unsigned long entry, unsigned long addr,
- unsigned long type, struct pt_regs *regs)
-{
- type = type & (ITYPE_mskINST | ITYPE_mskETYPE);
- if ((type & ITYPE_mskETYPE) < 5) {
- /* Permission exceptions */
- do_page_fault(entry, addr, type, regs);
- } else
- unhandled_exceptions(entry, addr, type, regs);
-}
-
-void do_revinsn(struct pt_regs *regs)
-{
- pr_emerg("Reserved Instruction\n");
- show_regs(regs);
- if (!user_mode(regs))
- make_task_dead(SIGILL);
- force_sig(SIGILL);
-}
-
-#ifdef CONFIG_ALIGNMENT_TRAP
-extern int unalign_access_mode;
-extern int do_unaligned_access(unsigned long addr, struct pt_regs *regs);
-#endif
-void do_dispatch_general(unsigned long entry, unsigned long addr,
- unsigned long itype, struct pt_regs *regs,
- unsigned long oipc)
-{
- unsigned int swid = itype >> ITYPE_offSWID;
- unsigned long type = itype & (ITYPE_mskINST | ITYPE_mskETYPE);
- if (type == ETYPE_ALIGNMENT_CHECK) {
-#ifdef CONFIG_ALIGNMENT_TRAP
- /* Alignment check */
- if (user_mode(regs) && unalign_access_mode) {
- int ret;
- ret = do_unaligned_access(addr, regs);
-
- if (ret == 0)
- return;
-
- if (ret == -EFAULT)
- pr_emerg
- ("Unhandled unaligned access exception\n");
- }
-#endif
- do_page_fault(entry, addr, type, regs);
- } else if (type == ETYPE_RESERVED_INSTRUCTION) {
- /* Reserved instruction */
- do_revinsn(regs);
- } else if (type == ETYPE_COPROCESSOR) {
- /* Coprocessor */
-#if IS_ENABLED(CONFIG_FPU)
- unsigned int fucop_exist = __nds32__mfsr(NDS32_SR_FUCOP_EXIST);
- unsigned int cpid = ((itype & ITYPE_mskCPID) >> ITYPE_offCPID);
-
- if ((cpid == FPU_CPID) &&
- (fucop_exist & FUCOP_EXIST_mskCP0ISFPU)) {
- unsigned int subtype = (itype & ITYPE_mskSTYPE);
-
- if (true == do_fpu_exception(subtype, regs))
- return;
- }
-#endif
- unhandled_exceptions(entry, addr, type, regs);
- } else if (type == ETYPE_TRAP && swid == SWID_RAISE_INTERRUPT_LEVEL) {
- /* trap, used on v3 EDM target debugging workaround */
- /*
- * DIPC(OIPC) is passed as parameter before
- * interrupt is enabled, so the DIPC will not be corrupted
- * even though interrupts are coming in
- */
- /*
- * 1. update ipc
- * 2. update pt_regs ipc with oipc
- * 3. update pt_regs ipsw (clear DEX)
- */
- __asm__ volatile ("mtsr %0, $IPC\n\t"::"r" (oipc));
- regs->ipc = oipc;
- if (regs->pipsw & PSW_mskDEX) {
- pr_emerg
- ("Nested Debug exception is possibly happened\n");
- pr_emerg("ipc:%08x pipc:%08x\n",
- (unsigned int)regs->ipc,
- (unsigned int)regs->pipc);
- }
- do_debug_trap(entry, addr, itype, regs);
- regs->ipsw &= ~PSW_mskDEX;
- } else
- unhandled_exceptions(entry, addr, type, regs);
-}
diff --git a/arch/nds32/kernel/vdso.c b/arch/nds32/kernel/vdso.c
deleted file mode 100644
index e16009a07971..000000000000
--- a/arch/nds32/kernel/vdso.c
+++ /dev/null
@@ -1,231 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2012 ARM Limited
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <linux/cache.h>
-#include <linux/clocksource.h>
-#include <linux/elf.h>
-#include <linux/err.h>
-#include <linux/errno.h>
-#include <linux/gfp.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/sched.h>
-#include <linux/signal.h>
-#include <linux/slab.h>
-#include <linux/timekeeper_internal.h>
-#include <linux/vmalloc.h>
-#include <linux/random.h>
-
-#include <asm/cacheflush.h>
-#include <asm/vdso.h>
-#include <asm/vdso_datapage.h>
-#include <asm/vdso_timer_info.h>
-#include <asm/cache_info.h>
-extern struct cache_info L1_cache_info[2];
-extern char vdso_start[], vdso_end[];
-static unsigned long vdso_pages __ro_after_init;
-static unsigned long timer_mapping_base;
-
-struct timer_info_t timer_info = {
- .cycle_count_down = true,
- .mapping_base = EMPTY_TIMER_MAPPING,
- .cycle_count_reg_offset = EMPTY_REG_OFFSET
-};
-/*
- * The vDSO data page.
- */
-static struct page *no_pages[] = { NULL };
-
-static union {
- struct vdso_data data;
- u8 page[PAGE_SIZE];
-} vdso_data_store __page_aligned_data;
-struct vdso_data *vdso_data = &vdso_data_store.data;
-static struct vm_special_mapping vdso_spec[2] __ro_after_init = {
- {
- .name = "[vvar]",
- .pages = no_pages,
- },
- {
- .name = "[vdso]",
- },
-};
-
-static void get_timer_node_info(void)
-{
- timer_mapping_base = timer_info.mapping_base;
- vdso_data->cycle_count_offset =
- timer_info.cycle_count_reg_offset;
- vdso_data->cycle_count_down =
- timer_info.cycle_count_down;
-}
-
-static int __init vdso_init(void)
-{
- int i;
- struct page **vdso_pagelist;
-
- if (memcmp(vdso_start, "\177ELF", 4)) {
- pr_err("vDSO is not a valid ELF object!\n");
- return -EINVAL;
- }
- /* Creat a timer io mapping to get clock cycles counter */
- get_timer_node_info();
-
- vdso_pages = (vdso_end - vdso_start) >> PAGE_SHIFT;
- pr_info("vdso: %ld pages (%ld code @ %p, %ld data @ %p)\n",
- vdso_pages + 1, vdso_pages, vdso_start, 1L, vdso_data);
-
- /* Allocate the vDSO pagelist */
- vdso_pagelist = kcalloc(vdso_pages, sizeof(struct page *), GFP_KERNEL);
- if (vdso_pagelist == NULL)
- return -ENOMEM;
-
- for (i = 0; i < vdso_pages; i++)
- vdso_pagelist[i] = virt_to_page(vdso_start + i * PAGE_SIZE);
- vdso_spec[1].pages = &vdso_pagelist[0];
-
- return 0;
-}
-
-arch_initcall(vdso_init);
-
-unsigned long inline vdso_random_addr(unsigned long vdso_mapping_len)
-{
- unsigned long start = current->mm->mmap_base, end, offset, addr;
- start = PAGE_ALIGN(start);
-
- /* Round the lowest possible end address up to a PMD boundary. */
- end = (start + vdso_mapping_len + PMD_SIZE - 1) & PMD_MASK;
- if (end >= TASK_SIZE)
- end = TASK_SIZE;
- end -= vdso_mapping_len;
-
- if (end > start) {
- offset = get_random_int() % (((end - start) >> PAGE_SHIFT) + 1);
- addr = start + (offset << PAGE_SHIFT);
- } else {
- addr = start;
- }
- return addr;
-}
-
-int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
-{
- struct mm_struct *mm = current->mm;
- unsigned long vdso_base, vdso_text_len, vdso_mapping_len;
- struct vm_area_struct *vma;
- unsigned long addr = 0;
- pgprot_t prot;
- int ret, vvar_page_num = 2;
-
- vdso_text_len = vdso_pages << PAGE_SHIFT;
-
- if(timer_mapping_base == EMPTY_VALUE)
- vvar_page_num = 1;
- /* Be sure to map the data page */
- vdso_mapping_len = vdso_text_len + vvar_page_num * PAGE_SIZE;
-#ifdef CONFIG_CPU_CACHE_ALIASING
- vdso_mapping_len += L1_cache_info[DCACHE].aliasing_num - 1;
-#endif
-
- if (mmap_write_lock_killable(mm))
- return -EINTR;
-
- addr = vdso_random_addr(vdso_mapping_len);
- vdso_base = get_unmapped_area(NULL, addr, vdso_mapping_len, 0, 0);
- if (IS_ERR_VALUE(vdso_base)) {
- ret = vdso_base;
- goto up_fail;
- }
-
-#ifdef CONFIG_CPU_CACHE_ALIASING
- {
- unsigned int aliasing_mask =
- L1_cache_info[DCACHE].aliasing_mask;
- unsigned int page_colour_ofs;
- page_colour_ofs = ((unsigned int)vdso_data & aliasing_mask) -
- (vdso_base & aliasing_mask);
- vdso_base += page_colour_ofs & aliasing_mask;
- }
-#endif
-
- vma = _install_special_mapping(mm, vdso_base, vvar_page_num * PAGE_SIZE,
- VM_READ | VM_MAYREAD, &vdso_spec[0]);
- if (IS_ERR(vma)) {
- ret = PTR_ERR(vma);
- goto up_fail;
- }
-
- /*Map vdata to user space */
- ret = io_remap_pfn_range(vma, vdso_base,
- virt_to_phys(vdso_data) >> PAGE_SHIFT,
- PAGE_SIZE, vma->vm_page_prot);
- if (ret)
- goto up_fail;
-
- /*Map timer to user space */
- vdso_base += PAGE_SIZE;
- prot = __pgprot(_PAGE_V | _PAGE_M_UR_KR | _PAGE_D | _PAGE_C_DEV);
- ret = io_remap_pfn_range(vma, vdso_base, timer_mapping_base >> PAGE_SHIFT,
- PAGE_SIZE, prot);
- if (ret)
- goto up_fail;
-
- /*Map vdso to user space */
- vdso_base += PAGE_SIZE;
- mm->context.vdso = (void *)vdso_base;
- vma = _install_special_mapping(mm, vdso_base, vdso_text_len,
- VM_READ | VM_EXEC |
- VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC,
- &vdso_spec[1]);
- if (IS_ERR(vma)) {
- ret = PTR_ERR(vma);
- goto up_fail;
- }
-
- mmap_write_unlock(mm);
- return 0;
-
-up_fail:
- mm->context.vdso = NULL;
- mmap_write_unlock(mm);
- return ret;
-}
-
-static void vdso_write_begin(struct vdso_data *vdata)
-{
- ++vdso_data->seq_count;
- smp_wmb(); /* Pairs with smp_rmb in vdso_read_retry */
-}
-
-static void vdso_write_end(struct vdso_data *vdata)
-{
- smp_wmb(); /* Pairs with smp_rmb in vdso_read_begin */
- ++vdso_data->seq_count;
-}
-
-void update_vsyscall(struct timekeeper *tk)
-{
- vdso_write_begin(vdso_data);
- vdso_data->cs_mask = tk->tkr_mono.mask;
- vdso_data->cs_mult = tk->tkr_mono.mult;
- vdso_data->cs_shift = tk->tkr_mono.shift;
- vdso_data->cs_cycle_last = tk->tkr_mono.cycle_last;
- vdso_data->wtm_clock_sec = tk->wall_to_monotonic.tv_sec;
- vdso_data->wtm_clock_nsec = tk->wall_to_monotonic.tv_nsec;
- vdso_data->xtime_clock_sec = tk->xtime_sec;
- vdso_data->xtime_clock_nsec = tk->tkr_mono.xtime_nsec;
- vdso_data->xtime_coarse_sec = tk->xtime_sec;
- vdso_data->xtime_coarse_nsec = tk->tkr_mono.xtime_nsec >>
- tk->tkr_mono.shift;
- vdso_data->hrtimer_res = hrtimer_resolution;
- vdso_write_end(vdso_data);
-}
-
-void update_vsyscall_tz(void)
-{
- vdso_data->tz_minuteswest = sys_tz.tz_minuteswest;
- vdso_data->tz_dsttime = sys_tz.tz_dsttime;
-}
diff --git a/arch/nds32/kernel/vdso/.gitignore b/arch/nds32/kernel/vdso/.gitignore
deleted file mode 100644
index 652e31d82582..000000000000
--- a/arch/nds32/kernel/vdso/.gitignore
+++ /dev/null
@@ -1,2 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-vdso.lds
diff --git a/arch/nds32/kernel/vdso/Makefile b/arch/nds32/kernel/vdso/Makefile
deleted file mode 100644
index 55df25ef0057..000000000000
--- a/arch/nds32/kernel/vdso/Makefile
+++ /dev/null
@@ -1,79 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-#
-# Building a vDSO image for AArch64.
-#
-# Author: Will Deacon <will.deacon@....com>
-# Heavily based on the vDSO Makefiles for other archs.
-#
-
-obj-vdso := note.o datapage.o sigreturn.o gettimeofday.o
-
-# Build rules
-targets := $(obj-vdso) vdso.so vdso.so.dbg
-obj-vdso := $(addprefix $(obj)/, $(obj-vdso))
-
-ccflags-y := -shared -fno-common -fno-builtin -nostdlib -fPIC -Wl,-shared -g \
- -Wl,-soname=linux-vdso.so.1 -Wl,--hash-style=sysv
-
-# Disable gcov profiling for VDSO code
-GCOV_PROFILE := n
-
-
-obj-y += vdso.o
-targets += vdso.lds
-CPPFLAGS_vdso.lds += -P -C -U$(ARCH)
-
-# Force dependency
-$(obj)/vdso.o : $(obj)/vdso.so
-
-# Link rule for the .so file, .lds has to be first
-$(obj)/vdso.so.dbg: $(obj)/vdso.lds $(obj-vdso) FORCE
- $(call if_changed,vdsold)
-
-
-# Strip rule for the .so file
-$(obj)/%.so: OBJCOPYFLAGS := -S
-$(obj)/%.so: $(obj)/%.so.dbg FORCE
- $(call if_changed,objcopy)
-
-# Generate VDSO offsets using helper script
-gen-vdsosym := $(srctree)/$(src)/gen_vdso_offsets.sh
-quiet_cmd_vdsosym = VDSOSYM $@
- cmd_vdsosym = $(NM) $< | $(gen-vdsosym) | LC_ALL=C sort > $@
-
-include/generated/vdso-offsets.h: $(obj)/vdso.so.dbg FORCE
- $(call if_changed,vdsosym)
-
-
-
-# Assembly rules for the .S files
-
-sigreturn.o : sigreturn.S
- $(call if_changed_dep,vdsoas)
-
-note.o : note.S
- $(call if_changed_dep,vdsoas)
-
-datapage.o : datapage.S
- $(call if_changed_dep,vdsoas)
-
-gettimeofday.o : gettimeofday.c FORCE
- $(call if_changed_dep,vdsocc)
-
-# Actual build commands
-quiet_cmd_vdsold = VDSOL $@
- cmd_vdsold = $(CC) $(c_flags) -Wl,-n -Wl,-T $(real-prereqs) -o $@
-quiet_cmd_vdsoas = VDSOA $@
- cmd_vdsoas = $(CC) $(a_flags) -c -o $@ $<
-quiet_cmd_vdsocc = VDSOA $@
- cmd_vdsocc = $(CC) $(c_flags) -c -o $@ $<
-
-# Install commands for the unstripped file
-quiet_cmd_vdso_install = INSTALL $@
- cmd_vdso_install = cp $(obj)/$@...g $(MODLIB)/vdso/$@
-
-vdso.so: $(obj)/vdso.so.dbg
- @mkdir -p $(MODLIB)/vdso
- $(call cmd,vdso_install)
-
-vdso_install: vdso.so
diff --git a/arch/nds32/kernel/vdso/datapage.S b/arch/nds32/kernel/vdso/datapage.S
deleted file mode 100644
index 4a62c3cab1c8..000000000000
--- a/arch/nds32/kernel/vdso/datapage.S
+++ /dev/null
@@ -1,21 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <linux/linkage.h>
-#include <asm/page.h>
-
-ENTRY(__get_timerpage)
- sethi $r0, hi20(. + PAGE_SIZE + 8)
- ori $r0, $r0, lo12(. + PAGE_SIZE + 4)
- mfusr $r1, $pc
- sub $r0, $r1, $r0
- ret
-ENDPROC(__get_timerpage)
-
-ENTRY(__get_datapage)
- sethi $r0, hi20(. + 2*PAGE_SIZE + 8)
- ori $r0, $r0, lo12(. + 2*PAGE_SIZE + 4)
- mfusr $r1, $pc
- sub $r0, $r1, $r0
- ret
-ENDPROC(__get_datapage)
diff --git a/arch/nds32/kernel/vdso/gen_vdso_offsets.sh b/arch/nds32/kernel/vdso/gen_vdso_offsets.sh
deleted file mode 100755
index 01924ff071ad..000000000000
--- a/arch/nds32/kernel/vdso/gen_vdso_offsets.sh
+++ /dev/null
@@ -1,15 +0,0 @@
-#!/bin/sh
-
-#
-# Match symbols in the DSO that look like VDSO_*; produce a header file
-# of constant offsets into the shared object.
-#
-# Doing this inside the Makefile will break the $(filter-out) function,
-# causing Kbuild to rebuild the vdso-offsets header file every time.
-#
-# Author: Will Deacon <will.deacon@....com
-#
-
-LC_ALL=C
-sed -n -e 's/^00*/0/' -e \
-'s/^\([0-9a-fA-F]*\) . VDSO_\([a-zA-Z0-9_]*\)$/\#define vdso_offset_\2\t0x\1/p'
diff --git a/arch/nds32/kernel/vdso/gettimeofday.c b/arch/nds32/kernel/vdso/gettimeofday.c
deleted file mode 100644
index 9ec03cf0ec54..000000000000
--- a/arch/nds32/kernel/vdso/gettimeofday.c
+++ /dev/null
@@ -1,269 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <linux/compiler.h>
-#include <linux/hrtimer.h>
-#include <linux/time.h>
-#include <asm/io.h>
-#include <asm/barrier.h>
-#include <asm/bug.h>
-#include <asm/page.h>
-#include <asm/unistd.h>
-#include <asm/vdso_datapage.h>
-#include <asm/vdso_timer_info.h>
-#include <asm/asm-offsets.h>
-
-#define X(x) #x
-#define Y(x) X(x)
-
-extern struct vdso_data *__get_datapage(void);
-extern struct vdso_data *__get_timerpage(void);
-
-static notrace unsigned int __vdso_read_begin(const struct vdso_data *vdata)
-{
- u32 seq;
-repeat:
- seq = READ_ONCE(vdata->seq_count);
- if (seq & 1) {
- cpu_relax();
- goto repeat;
- }
- return seq;
-}
-
-static notrace unsigned int vdso_read_begin(const struct vdso_data *vdata)
-{
- unsigned int seq;
-
- seq = __vdso_read_begin(vdata);
-
- smp_rmb(); /* Pairs with smp_wmb in vdso_write_end */
- return seq;
-}
-
-static notrace int vdso_read_retry(const struct vdso_data *vdata, u32 start)
-{
- smp_rmb(); /* Pairs with smp_wmb in vdso_write_begin */
- return vdata->seq_count != start;
-}
-
-static notrace long clock_gettime_fallback(clockid_t _clkid,
- struct __kernel_old_timespec *_ts)
-{
- register struct __kernel_old_timespec *ts asm("$r1") = _ts;
- register clockid_t clkid asm("$r0") = _clkid;
- register long ret asm("$r0");
-
- asm volatile ("movi $r15, %3\n"
- "syscall 0x0\n"
- :"=r" (ret)
- :"r"(clkid), "r"(ts), "i"(__NR_clock_gettime)
- :"$r15", "memory");
-
- return ret;
-}
-
-static notrace int do_realtime_coarse(struct __kernel_old_timespec *ts,
- struct vdso_data *vdata)
-{
- u32 seq;
-
- do {
- seq = vdso_read_begin(vdata);
-
- ts->tv_sec = vdata->xtime_coarse_sec;
- ts->tv_nsec = vdata->xtime_coarse_nsec;
-
- } while (vdso_read_retry(vdata, seq));
- return 0;
-}
-
-static notrace int do_monotonic_coarse(struct __kernel_old_timespec *ts,
- struct vdso_data *vdata)
-{
- u32 seq;
- u64 ns;
-
- do {
- seq = vdso_read_begin(vdata);
-
- ts->tv_sec = vdata->xtime_coarse_sec + vdata->wtm_clock_sec;
- ns = vdata->xtime_coarse_nsec + vdata->wtm_clock_nsec;
-
- } while (vdso_read_retry(vdata, seq));
-
- ts->tv_sec += __iter_div_u64_rem(ns, NSEC_PER_SEC, &ns);
- ts->tv_nsec = ns;
-
- return 0;
-}
-
-static notrace inline u64 vgetsns(struct vdso_data *vdso)
-{
- u32 cycle_now;
- u32 cycle_delta;
- u32 *timer_cycle_base;
-
- timer_cycle_base =
- (u32 *) ((char *)__get_timerpage() + vdso->cycle_count_offset);
- cycle_now = readl_relaxed(timer_cycle_base);
- if (true == vdso->cycle_count_down)
- cycle_now = ~(*timer_cycle_base);
- cycle_delta = cycle_now - (u32) vdso->cs_cycle_last;
- return ((u64) cycle_delta & vdso->cs_mask) * vdso->cs_mult;
-}
-
-static notrace int do_realtime(struct __kernel_old_timespec *ts, struct vdso_data *vdata)
-{
- unsigned count;
- u64 ns;
- do {
- count = vdso_read_begin(vdata);
- ts->tv_sec = vdata->xtime_clock_sec;
- ns = vdata->xtime_clock_nsec;
- ns += vgetsns(vdata);
- ns >>= vdata->cs_shift;
- } while (vdso_read_retry(vdata, count));
-
- ts->tv_sec += __iter_div_u64_rem(ns, NSEC_PER_SEC, &ns);
- ts->tv_nsec = ns;
-
- return 0;
-}
-
-static notrace int do_monotonic(struct __kernel_old_timespec *ts, struct vdso_data *vdata)
-{
- u64 ns;
- u32 seq;
-
- do {
- seq = vdso_read_begin(vdata);
-
- ts->tv_sec = vdata->xtime_clock_sec;
- ns = vdata->xtime_clock_nsec;
- ns += vgetsns(vdata);
- ns >>= vdata->cs_shift;
-
- ts->tv_sec += vdata->wtm_clock_sec;
- ns += vdata->wtm_clock_nsec;
-
- } while (vdso_read_retry(vdata, seq));
-
- ts->tv_sec += __iter_div_u64_rem(ns, NSEC_PER_SEC, &ns);
- ts->tv_nsec = ns;
-
- return 0;
-}
-
-notrace int __vdso_clock_gettime(clockid_t clkid, struct __kernel_old_timespec *ts)
-{
- struct vdso_data *vdata;
- int ret = -1;
-
- vdata = __get_datapage();
- if (vdata->cycle_count_offset == EMPTY_REG_OFFSET)
- return clock_gettime_fallback(clkid, ts);
-
- switch (clkid) {
- case CLOCK_REALTIME_COARSE:
- ret = do_realtime_coarse(ts, vdata);
- break;
- case CLOCK_MONOTONIC_COARSE:
- ret = do_monotonic_coarse(ts, vdata);
- break;
- case CLOCK_REALTIME:
- ret = do_realtime(ts, vdata);
- break;
- case CLOCK_MONOTONIC:
- ret = do_monotonic(ts, vdata);
- break;
- default:
- break;
- }
-
- if (ret)
- ret = clock_gettime_fallback(clkid, ts);
-
- return ret;
-}
-
-static notrace int clock_getres_fallback(clockid_t _clk_id,
- struct __kernel_old_timespec *_res)
-{
- register clockid_t clk_id asm("$r0") = _clk_id;
- register struct __kernel_old_timespec *res asm("$r1") = _res;
- register int ret asm("$r0");
-
- asm volatile ("movi $r15, %3\n"
- "syscall 0x0\n"
- :"=r" (ret)
- :"r"(clk_id), "r"(res), "i"(__NR_clock_getres)
- :"$r15", "memory");
-
- return ret;
-}
-
-notrace int __vdso_clock_getres(clockid_t clk_id, struct __kernel_old_timespec *res)
-{
- struct vdso_data *vdata = __get_datapage();
-
- if (res == NULL)
- return 0;
- switch (clk_id) {
- case CLOCK_REALTIME:
- case CLOCK_MONOTONIC:
- case CLOCK_MONOTONIC_RAW:
- res->tv_sec = 0;
- res->tv_nsec = vdata->hrtimer_res;
- break;
- case CLOCK_REALTIME_COARSE:
- case CLOCK_MONOTONIC_COARSE:
- res->tv_sec = 0;
- res->tv_nsec = CLOCK_COARSE_RES;
- break;
- default:
- return clock_getres_fallback(clk_id, res);
- }
- return 0;
-}
-
-static notrace inline int gettimeofday_fallback(struct __kernel_old_timeval *_tv,
- struct timezone *_tz)
-{
- register struct __kernel_old_timeval *tv asm("$r0") = _tv;
- register struct timezone *tz asm("$r1") = _tz;
- register int ret asm("$r0");
-
- asm volatile ("movi $r15, %3\n"
- "syscall 0x0\n"
- :"=r" (ret)
- :"r"(tv), "r"(tz), "i"(__NR_gettimeofday)
- :"$r15", "memory");
-
- return ret;
-}
-
-notrace int __vdso_gettimeofday(struct __kernel_old_timeval *tv, struct timezone *tz)
-{
- struct __kernel_old_timespec ts;
- struct vdso_data *vdata;
- int ret;
-
- vdata = __get_datapage();
-
- if (vdata->cycle_count_offset == EMPTY_REG_OFFSET)
- return gettimeofday_fallback(tv, tz);
-
- ret = do_realtime(&ts, vdata);
-
- if (tv) {
- tv->tv_sec = ts.tv_sec;
- tv->tv_usec = ts.tv_nsec / 1000;
- }
- if (tz) {
- tz->tz_minuteswest = vdata->tz_minuteswest;
- tz->tz_dsttime = vdata->tz_dsttime;
- }
-
- return ret;
-}
diff --git a/arch/nds32/kernel/vdso/note.S b/arch/nds32/kernel/vdso/note.S
deleted file mode 100644
index 0aeaa19b05f0..000000000000
--- a/arch/nds32/kernel/vdso/note.S
+++ /dev/null
@@ -1,11 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2012 ARM Limited
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <linux/uts.h>
-#include <linux/version.h>
-#include <linux/elfnote.h>
-
-ELFNOTE_START(Linux, 0, "a")
- .long LINUX_VERSION_CODE
-ELFNOTE_END
diff --git a/arch/nds32/kernel/vdso/sigreturn.S b/arch/nds32/kernel/vdso/sigreturn.S
deleted file mode 100644
index 67e4d1d1612a..000000000000
--- a/arch/nds32/kernel/vdso/sigreturn.S
+++ /dev/null
@@ -1,19 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2012 ARM Limited
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <linux/linkage.h>
-#include <asm/unistd.h>
-
- .text
-
-ENTRY(__kernel_rt_sigreturn)
- .cfi_startproc
- movi $r15, __NR_rt_sigreturn
- /*
- * The SWID of syscall should be __NR_rt_sigreturn to synchronize
- * the unwinding scheme in gcc
- */
- syscall __NR_rt_sigreturn
- .cfi_endproc
-ENDPROC(__kernel_rt_sigreturn)
diff --git a/arch/nds32/kernel/vdso/vdso.S b/arch/nds32/kernel/vdso/vdso.S
deleted file mode 100644
index 16737c11e55b..000000000000
--- a/arch/nds32/kernel/vdso/vdso.S
+++ /dev/null
@@ -1,18 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2012 ARM Limited
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <linux/init.h>
-#include <linux/linkage.h>
-#include <linux/const.h>
-#include <asm/page.h>
-
- .globl vdso_start, vdso_end
- .section .rodata
- .balign PAGE_SIZE
-vdso_start:
- .incbin "arch/nds32/kernel/vdso/vdso.so"
- .balign PAGE_SIZE
-vdso_end:
-
- .previous
diff --git a/arch/nds32/kernel/vdso/vdso.lds.S b/arch/nds32/kernel/vdso/vdso.lds.S
deleted file mode 100644
index 1f2b16004594..000000000000
--- a/arch/nds32/kernel/vdso/vdso.lds.S
+++ /dev/null
@@ -1,75 +0,0 @@
-/*
- * SPDX-License-Identifier: GPL-2.0
- * Copyright (C) 2005-2017 Andes Technology Corporation
- */
-
-
-#include <linux/const.h>
-#include <asm/page.h>
-#include <asm/vdso.h>
-
-OUTPUT_ARCH(nds32)
-
-SECTIONS
-{
- . = SIZEOF_HEADERS;
-
- .hash : { *(.hash) } :text
- .gnu.hash : { *(.gnu.hash) }
- .dynsym : { *(.dynsym) }
- .dynstr : { *(.dynstr) }
- .gnu.version : { *(.gnu.version) }
- .gnu.version_d : { *(.gnu.version_d) }
- .gnu.version_r : { *(.gnu.version_r) }
-
- .note : { *(.note.*) } :text :note
-
-
- .text : { *(.text*) } :text
-
- .eh_frame_hdr : { *(.eh_frame_hdr) } :text :eh_frame_hdr
- .eh_frame : { KEEP (*(.eh_frame)) } :text
-
- .dynamic : { *(.dynamic) } :text :dynamic
-
- .rodata : { *(.rodata*) } :text
-
-
- /DISCARD/ : {
- *(.note.GNU-stack)
- *(.data .data.* .gnu.linkonce.d.* .sdata*)
- *(.bss .sbss .dynbss .dynsbss)
- }
-}
-
-/*
- * We must supply the ELF program headers explicitly to get just one
- * PT_LOAD segment, and set the flags explicitly to make segments read-only.
- */
-PHDRS
-{
- text PT_LOAD FLAGS(5) FILEHDR PHDRS; /* PF_R|PF_X */
- dynamic PT_DYNAMIC FLAGS(4); /* PF_R */
- note PT_NOTE FLAGS(4); /* PF_R */
- eh_frame_hdr PT_GNU_EH_FRAME;
-}
-
-/*
- * This controls what symbols we export from the DSO.
- */
-VERSION
-{
- LINUX_4 {
- global:
- __kernel_rt_sigreturn;
- __vdso_gettimeofday;
- __vdso_clock_getres;
- __vdso_clock_gettime;
- local: *;
- };
-}
-
-/*
- * Make the rt_sigreturn code visible to the kernel.
- */
-VDSO_rt_sigtramp = __kernel_rt_sigreturn;
diff --git a/arch/nds32/kernel/vmlinux.lds.S b/arch/nds32/kernel/vmlinux.lds.S
deleted file mode 100644
index 6a91b965fb1e..000000000000
--- a/arch/nds32/kernel/vmlinux.lds.S
+++ /dev/null
@@ -1,70 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <asm/page.h>
-#include <asm/thread_info.h>
-#include <asm/cache.h>
-#include <asm/memory.h>
-
-#define LOAD_OFFSET (PAGE_OFFSET - PHYS_OFFSET)
-#include <asm-generic/vmlinux.lds.h>
-
-OUTPUT_ARCH(nds32)
-ENTRY(_stext_lma)
-jiffies = jiffies_64;
-
-#if defined(CONFIG_GCOV_KERNEL)
-#define NDS32_EXIT_KEEP(x) x
-#else
-#define NDS32_EXIT_KEEP(x)
-#endif
-
-SECTIONS
-{
- _stext_lma = TEXTADDR - LOAD_OFFSET;
- . = TEXTADDR;
- __init_begin = .;
- HEAD_TEXT_SECTION
- .exit.text : {
- NDS32_EXIT_KEEP(EXIT_TEXT)
- }
- INIT_TEXT_SECTION(PAGE_SIZE)
- INIT_DATA_SECTION(16)
- .exit.data : {
- NDS32_EXIT_KEEP(EXIT_DATA)
- }
- PERCPU_SECTION(L1_CACHE_BYTES)
- __init_end = .;
-
- . = ALIGN(PAGE_SIZE);
- _stext = .;
- /* Real text segment */
- .text : AT(ADDR(.text) - LOAD_OFFSET) {
- _text = .; /* Text and read-only data */
- TEXT_TEXT
- SCHED_TEXT
- CPUIDLE_TEXT
- LOCK_TEXT
- KPROBES_TEXT
- IRQENTRY_TEXT
- SOFTIRQENTRY_TEXT
- *(.fixup)
- }
-
- _etext = .; /* End of text and rodata section */
-
- _sdata = .;
- RO_DATA(PAGE_SIZE)
- RW_DATA(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)
- _edata = .;
-
- EXCEPTION_TABLE(16)
- BSS_SECTION(4, 4, 4)
- _end = .;
-
- STABS_DEBUG
- DWARF_DEBUG
- ELF_DETAILS
-
- DISCARDS
-}
diff --git a/arch/nds32/lib/Makefile b/arch/nds32/lib/Makefile
deleted file mode 100644
index dddbc15d6b37..000000000000
--- a/arch/nds32/lib/Makefile
+++ /dev/null
@@ -1,4 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-lib-y := copy_page.o memcpy.o memmove.o \
- memset.o memzero.o \
- copy_from_user.o copy_to_user.o clear_user.o
diff --git a/arch/nds32/lib/clear_user.S b/arch/nds32/lib/clear_user.S
deleted file mode 100644
index 805dfcd25bf8..000000000000
--- a/arch/nds32/lib/clear_user.S
+++ /dev/null
@@ -1,42 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <linux/linkage.h>
-#include <asm/assembler.h>
-#include <asm/errno.h>
-
-/* Prototype: int __arch_clear_user(void *addr, size_t sz)
- * Purpose : clear some user memory
- * Params : addr - user memory address to clear
- * : sz - number of bytes to clear
- * Returns : number of bytes NOT cleared
- */
- .text
- .align 5
-ENTRY(__arch_clear_user)
- add $r5, $r0, $r1
- beqz $r1, clear_exit
- xor $p1, $p1, $p1 ! Use $p1=0 to clear mem
- srli $p0, $r1, #2 ! $p0 = number of word to clear
- andi $r1, $r1, #3 ! Bytes less than a word to copy
- beqz $p0, byte_clear ! Only less than a word to clear
-word_clear:
-USER( smw.bim,$p1, [$r0], $p1) ! Clear the word
- addi $p0, $p0, #-1 ! Decrease word count
- bnez $p0, word_clear ! Continue looping to clear all words
- beqz $r1, clear_exit ! No left bytes to copy
-byte_clear:
-USER( sbi.bi, $p1, [$r0], #1) ! Clear the byte
- addi $r1, $r1, #-1 ! Decrease byte count
- bnez $r1, byte_clear ! Continue looping to clear all left bytes
-clear_exit:
- move $r0, $r1 ! Set return value
- ret
-
- .section .fixup,"ax"
- .align 0
-9001:
- sub $r0, $r5, $r0 ! Bytes left to copy
- ret
- .previous
-ENDPROC(__arch_clear_user)
diff --git a/arch/nds32/lib/copy_from_user.S b/arch/nds32/lib/copy_from_user.S
deleted file mode 100644
index ad1857b20067..000000000000
--- a/arch/nds32/lib/copy_from_user.S
+++ /dev/null
@@ -1,45 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <linux/linkage.h>
-#include <asm/assembler.h>
-#include <asm/errno.h>
-
-.macro lbi1 dst, addr, adj
-USER( lbi.bi, \dst, [\addr], \adj)
-.endm
-
-.macro sbi1 src, addr, adj
-sbi.bi \src, [\addr], \adj
-.endm
-
-.macro lmw1 start_reg, addr, end_reg
-USER( lmw.bim, \start_reg, [\addr], \end_reg)
-.endm
-
-.macro smw1 start_reg, addr, end_reg
-smw.bim \start_reg, [\addr], \end_reg
-.endm
-
-
-/* Prototype: int __arch_copy_from_user(void *to, const char *from, size_t n)
- * Purpose : copy a block from user memory to kernel memory
- * Params : to - kernel memory
- * : from - user memory
- * : n - number of bytes to copy
- * Returns : Number of bytes NOT copied.
- */
-
-.text
-ENTRY(__arch_copy_from_user)
- add $r5, $r0, $r2
-#include "copy_template.S"
- move $r0, $r2
- ret
-.section .fixup,"ax"
-.align 2
-9001:
- sub $r0, $r5, $r0
- ret
-.previous
-ENDPROC(__arch_copy_from_user)
diff --git a/arch/nds32/lib/copy_page.S b/arch/nds32/lib/copy_page.S
deleted file mode 100644
index f8701ed161a8..000000000000
--- a/arch/nds32/lib/copy_page.S
+++ /dev/null
@@ -1,40 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <linux/linkage.h>
-#include <asm/export.h>
-#include <asm/page.h>
-
- .text
-ENTRY(copy_page)
- pushm $r2, $r10
- movi $r2, PAGE_SIZE >> 5
-.Lcopy_loop:
- lmw.bim $r3, [$r1], $r10
- smw.bim $r3, [$r0], $r10
- subi45 $r2, #1
- bnez38 $r2, .Lcopy_loop
- popm $r2, $r10
- ret
-ENDPROC(copy_page)
-EXPORT_SYMBOL(copy_page)
-
-ENTRY(clear_page)
- pushm $r1, $r9
- movi $r1, PAGE_SIZE >> 5
- movi55 $r2, #0
- movi55 $r3, #0
- movi55 $r4, #0
- movi55 $r5, #0
- movi55 $r6, #0
- movi55 $r7, #0
- movi55 $r8, #0
- movi55 $r9, #0
-.Lclear_loop:
- smw.bim $r2, [$r0], $r9
- subi45 $r1, #1
- bnez38 $r1, .Lclear_loop
- popm $r1, $r9
- ret
-ENDPROC(clear_page)
-EXPORT_SYMBOL(clear_page)
diff --git a/arch/nds32/lib/copy_template.S b/arch/nds32/lib/copy_template.S
deleted file mode 100644
index 3a9a2de468c2..000000000000
--- a/arch/nds32/lib/copy_template.S
+++ /dev/null
@@ -1,69 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-
- beq $r1, $r0, quit_memcpy
- beqz $r2, quit_memcpy
- srli $r3, $r2, #5 ! check if len < cache-line size 32
- beqz $r3, word_copy_entry
- andi $r4, $r0, #0x3 ! check byte-align
- beqz $r4, unalign_word_copy_entry
-
- addi $r4, $r4,#-4
- abs $r4, $r4 ! check how many un-align byte to copy
- sub $r2, $r2, $r4 ! update $R2
-
-unalign_byte_copy:
- lbi1 $r3, $r1, #1
- addi $r4, $r4, #-1
- sbi1 $r3, $r0, #1
- bnez $r4, unalign_byte_copy
- beqz $r2, quit_memcpy
-
-unalign_word_copy_entry:
- andi $r3, $r0, 0x1f ! check cache-line unaligncount
- beqz $r3, cache_copy
-
- addi $r3, $r3, #-32
- abs $r3, $r3
- sub $r2, $r2, $r3 ! update $R2
-
-unalign_word_copy:
- lmw1 $r4, $r1, $r4
- addi $r3, $r3, #-4
- smw1 $r4, $r0, $r4
- bnez $r3, unalign_word_copy
- beqz $r2, quit_memcpy
-
- addi $r3, $r2, #-32 ! to check $r2< cache_line , than go to word_copy
- bltz $r3, word_copy_entry
-cache_copy:
- srli $r3, $r2, #5
- beqz $r3, word_copy_entry
-3:
- lmw1 $r17, $r1, $r24
- addi $r3, $r3, #-1
- smw1 $r17, $r0, $r24
- bnez $r3, 3b
-
-word_copy_entry:
- andi $r2, $r2, #31
-
- beqz $r2, quit_memcpy
-5:
- srli $r3, $r2, #2
- beqz $r3, byte_copy
-word_copy:
- lmw1 $r4, $r1, $r4
- addi $r3, $r3, #-1
- smw1 $r4, $r0, $r4
- bnez $r3, word_copy
- andi $r2, $r2, #3
- beqz $r2, quit_memcpy
-byte_copy:
- lbi1 $r3, $r1, #1
- addi $r2, $r2, #-1
-
- sbi1 $r3, $r0, #1
- bnez $r2, byte_copy
-quit_memcpy:
diff --git a/arch/nds32/lib/copy_to_user.S b/arch/nds32/lib/copy_to_user.S
deleted file mode 100644
index 3230044dcfb8..000000000000
--- a/arch/nds32/lib/copy_to_user.S
+++ /dev/null
@@ -1,45 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <linux/linkage.h>
-#include <asm/assembler.h>
-#include <asm/errno.h>
-
-.macro lbi1 dst, addr, adj
-lbi.bi \dst, [\addr], \adj
-.endm
-
-.macro sbi1 src, addr, adj
-USER( sbi.bi, \src, [\addr], \adj)
-.endm
-
-.macro lmw1 start_reg, addr, end_reg
-lmw.bim \start_reg, [\addr], \end_reg
-.endm
-
-.macro smw1 start_reg, addr, end_reg
-USER( smw.bim, \start_reg, [\addr], \end_reg)
-.endm
-
-
-/* Prototype: int __arch_copy_to_user(void *to, const char *from, size_t n)
- * Purpose : copy a block to user memory from kernel memory
- * Params : to - user memory
- * : from - kernel memory
- * : n - number of bytes to copy
- * Returns : Number of bytes NOT copied.
- */
-
-.text
-ENTRY(__arch_copy_to_user)
- add $r5, $r0, $r2
-#include "copy_template.S"
- move $r0, $r2
- ret
-.section .fixup,"ax"
-.align 2
-9001:
- sub $r0, $r5, $r0
- ret
-.previous
-ENDPROC(__arch_copy_to_user)
diff --git a/arch/nds32/lib/memcpy.S b/arch/nds32/lib/memcpy.S
deleted file mode 100644
index a2345ea721e4..000000000000
--- a/arch/nds32/lib/memcpy.S
+++ /dev/null
@@ -1,30 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <linux/linkage.h>
-
-
-.macro lbi1 dst, addr, adj
-lbi.bi \dst, [\addr], \adj
-.endm
-
-.macro sbi1 src, addr, adj
-sbi.bi \src, [\addr], \adj
-.endm
-
-.macro lmw1 start_reg, addr, end_reg
-lmw.bim \start_reg, [\addr], \end_reg
-.endm
-
-.macro smw1 start_reg, addr, end_reg
-smw.bim \start_reg, [\addr], \end_reg
-.endm
-
-.text
-ENTRY(memcpy)
- move $r5, $r0
-#include "copy_template.S"
- move $r0, $r5
- ret
-
-ENDPROC(memcpy)
diff --git a/arch/nds32/lib/memmove.S b/arch/nds32/lib/memmove.S
deleted file mode 100644
index c823aada2271..000000000000
--- a/arch/nds32/lib/memmove.S
+++ /dev/null
@@ -1,70 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <linux/linkage.h>
-
-/*
- void *memmove(void *dst, const void *src, int n);
-
- dst: $r0
- src: $r1
- n : $r2
- ret: $r0 - pointer to the memory area dst.
-*/
- .text
-
-ENTRY(memmove)
- move $r5, $r0 ! Set return value = det
- beq $r0, $r1, exit_memcpy ! Exit when det = src
- beqz $r2, exit_memcpy ! Exit when n = 0
- pushm $t0, $t1 ! Save reg
- srli $p1, $r2, #2 ! $p1 is how many words to copy
-
- ! Avoid data lost when memory overlap
- ! Copy data reversely when src < dst
- slt $p0, $r0, $r1 ! check if $r0 < $r1
- beqz $p0, do_reverse ! branch if dst > src
-
- ! No reverse, dst < src
- andi $r2, $r2, #3 ! How many bytes are less than a word
- li $t0, #1 ! Determining copy direction in byte_cpy
- beqz $p1, byte_cpy ! When n is less than a word
-
-word_cpy:
- lmw.bim $p0, [$r1], $p0 ! Read a word from src
- addi $p1, $p1, #-1 ! How many words left to copy
- smw.bim $p0, [$r0], $p0 ! Copy the word to det
- bnez $p1, word_cpy ! If remained words > 0
- beqz $r2, end_memcpy ! No left bytes to copy
- b byte_cpy
-
-do_reverse:
- add $r0, $r0, $r2 ! Start with the end of $r0
- add $r1, $r1, $r2 ! Start with the end of $r1
- andi $r2, $r2, #3 ! How many bytes are less than a word
- li $t0, #-1 ! Determining copy direction in byte_cpy
- beqz $p1, reverse_byte_cpy ! When n is less than a word
-
-reverse_word_cpy:
- lmw.adm $p0, [$r1], $p0 ! Read a word from src
- addi $p1, $p1, #-1 ! How many words left to copy
- smw.adm $p0, [$r0], $p0 ! Copy the word to det
- bnez $p1, reverse_word_cpy ! If remained words > 0
- beqz $r2, end_memcpy ! No left bytes to copy
-
-reverse_byte_cpy:
- addi $r0, $r0, #-1
- addi $r1, $r1, #-1
-byte_cpy: ! Less than 4 bytes to copy now
- lb.bi $p0, [$r1], $t0 ! Read a byte from src
- addi $r2, $r2, #-1 ! How many bytes left to copy
- sb.bi $p0, [$r0], $t0 ! copy the byte to det
- bnez $r2, byte_cpy ! If remained bytes > 0
-
-end_memcpy:
- popm $t0, $t1
-exit_memcpy:
- move $r0, $r5
- ret
-
-ENDPROC(memmove)
diff --git a/arch/nds32/lib/memset.S b/arch/nds32/lib/memset.S
deleted file mode 100644
index 193cb6ce21a9..000000000000
--- a/arch/nds32/lib/memset.S
+++ /dev/null
@@ -1,33 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <linux/linkage.h>
-
- .text
-ENTRY(memset)
- move $r5, $r0 ! Return value
- beqz $r2, end_memset ! Exit when len = 0
- srli $p1, $r2, 2 ! $p1 is how many words to copy
- andi $r2, $r2, 3 ! How many bytes are less than a word
- beqz $p1, byte_set ! When n is less than a word
-
- ! set $r1 from ??????ab to abababab
- andi $r1, $r1, #0x00ff ! $r1 = 000000ab
- slli $p0, $r1, #8 ! $p0 = 0000ab00
- or $r1, $r1, $p0 ! $r1 = 0000abab
- slli $p0, $r1, #16 ! $p0 = abab0000
- or $r1, $r1, $p0 ! $r1 = abababab
-word_set:
- addi $p1, $p1, #-1 ! How many words left to copy
- smw.bim $r1, [$r0], $r1 ! Copy the word to det
- bnez $p1, word_set ! Still words to set, continue looping
- beqz $r2, end_memset ! No left byte to set
-byte_set: ! Less than 4 bytes left to set
- addi $r2, $r2, #-1 ! Decrease len by 1
- sbi.bi $r1, [$r0], #1 ! Set data of the next byte to $r1
- bnez $r2, byte_set ! Still bytes left to set
-end_memset:
- move $r0, $r5
- ret
-
-ENDPROC(memset)
diff --git a/arch/nds32/lib/memzero.S b/arch/nds32/lib/memzero.S
deleted file mode 100644
index f055972c9343..000000000000
--- a/arch/nds32/lib/memzero.S
+++ /dev/null
@@ -1,18 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <linux/linkage.h>
-
- .text
-ENTRY(memzero)
- beqz $r1, 1f
- push $lp
- move $r2, $r1
- move $r1, #0
- push $r0
- bal memset
- pop $r0
- pop $lp
-1:
- ret
-ENDPROC(memzero)
diff --git a/arch/nds32/math-emu/Makefile b/arch/nds32/math-emu/Makefile
deleted file mode 100644
index 3bed7e5d5d05..000000000000
--- a/arch/nds32/math-emu/Makefile
+++ /dev/null
@@ -1,10 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-#
-# Makefile for the Linux/nds32 kernel FPU emulation.
-#
-
-obj-y := fpuemu.o \
- fdivd.o fmuld.o fsubd.o faddd.o fs2d.o fsqrtd.o fcmpd.o fnegs.o \
- fd2si.o fd2ui.o fd2siz.o fd2uiz.o fsi2d.o fui2d.o \
- fdivs.o fmuls.o fsubs.o fadds.o fd2s.o fsqrts.o fcmps.o fnegd.o \
- fs2si.o fs2ui.o fs2siz.o fs2uiz.o fsi2s.o fui2s.o
diff --git a/arch/nds32/math-emu/faddd.c b/arch/nds32/math-emu/faddd.c
deleted file mode 100644
index f7fd4e3c3904..000000000000
--- a/arch/nds32/math-emu/faddd.c
+++ /dev/null
@@ -1,24 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2018 Andes Technology Corporation
-#include <linux/uaccess.h>
-
-#include <asm/sfp-machine.h>
-#include <math-emu/soft-fp.h>
-#include <math-emu/double.h>
-void faddd(void *ft, void *fa, void *fb)
-{
- FP_DECL_D(A);
- FP_DECL_D(B);
- FP_DECL_D(R);
- FP_DECL_EX;
-
- FP_UNPACK_DP(A, fa);
- FP_UNPACK_DP(B, fb);
-
- FP_ADD_D(R, A, B);
-
- FP_PACK_DP(ft, R);
-
- __FPU_FPCSR |= FP_CUR_EXCEPTIONS;
-
-}
diff --git a/arch/nds32/math-emu/fadds.c b/arch/nds32/math-emu/fadds.c
deleted file mode 100644
index f5af6ca8cca5..000000000000
--- a/arch/nds32/math-emu/fadds.c
+++ /dev/null
@@ -1,24 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2018 Andes Technology Corporation
-#include <linux/uaccess.h>
-
-#include <asm/sfp-machine.h>
-#include <math-emu/soft-fp.h>
-#include <math-emu/single.h>
-void fadds(void *ft, void *fa, void *fb)
-{
- FP_DECL_S(A);
- FP_DECL_S(B);
- FP_DECL_S(R);
- FP_DECL_EX;
-
- FP_UNPACK_SP(A, fa);
- FP_UNPACK_SP(B, fb);
-
- FP_ADD_S(R, A, B);
-
- FP_PACK_SP(ft, R);
-
- __FPU_FPCSR |= FP_CUR_EXCEPTIONS;
-
-}
diff --git a/arch/nds32/math-emu/fcmpd.c b/arch/nds32/math-emu/fcmpd.c
deleted file mode 100644
index 0ea225abe880..000000000000
--- a/arch/nds32/math-emu/fcmpd.c
+++ /dev/null
@@ -1,24 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2018 Andes Technology Corporation
-#include <asm/sfp-machine.h>
-#include <math-emu/soft-fp.h>
-#include <math-emu/double.h>
-int fcmpd(void *ft, void *fa, void *fb, int cmpop)
-{
- FP_DECL_D(A);
- FP_DECL_D(B);
- FP_DECL_EX;
- long cmp;
-
- FP_UNPACK_DP(A, fa);
- FP_UNPACK_DP(B, fb);
-
- FP_CMP_D(cmp, A, B, SF_CUN);
- cmp += 2;
- if (cmp == SF_CGT)
- *(long *)ft = 0;
- else
- *(long *)ft = (cmp & cmpop) ? 1 : 0;
-
- return 0;
-}
diff --git a/arch/nds32/math-emu/fcmps.c b/arch/nds32/math-emu/fcmps.c
deleted file mode 100644
index 681480758213..000000000000
--- a/arch/nds32/math-emu/fcmps.c
+++ /dev/null
@@ -1,24 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2018 Andes Technology Corporation
-#include <asm/sfp-machine.h>
-#include <math-emu/soft-fp.h>
-#include <math-emu/single.h>
-int fcmps(void *ft, void *fa, void *fb, int cmpop)
-{
- FP_DECL_S(A);
- FP_DECL_S(B);
- FP_DECL_EX;
- long cmp;
-
- FP_UNPACK_SP(A, fa);
- FP_UNPACK_SP(B, fb);
-
- FP_CMP_S(cmp, A, B, SF_CUN);
- cmp += 2;
- if (cmp == SF_CGT)
- *(int *)ft = 0x0;
- else
- *(int *)ft = (cmp & cmpop) ? 0x1 : 0x0;
-
- return 0;
-}
diff --git a/arch/nds32/math-emu/fd2s.c b/arch/nds32/math-emu/fd2s.c
deleted file mode 100644
index 1328371e8170..000000000000
--- a/arch/nds32/math-emu/fd2s.c
+++ /dev/null
@@ -1,22 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2018 Andes Technology Corporation
-#include <linux/uaccess.h>
-
-#include <asm/sfp-machine.h>
-#include <math-emu/double.h>
-#include <math-emu/single.h>
-#include <math-emu/soft-fp.h>
-void fd2s(void *ft, void *fa)
-{
- FP_DECL_D(A);
- FP_DECL_S(R);
- FP_DECL_EX;
-
- FP_UNPACK_DP(A, fa);
-
- FP_CONV(S, D, 1, 2, R, A);
-
- FP_PACK_SP(ft, R);
-
- __FPU_FPCSR |= FP_CUR_EXCEPTIONS;
-}
diff --git a/arch/nds32/math-emu/fd2si.c b/arch/nds32/math-emu/fd2si.c
deleted file mode 100644
index fae3e16a0a10..000000000000
--- a/arch/nds32/math-emu/fd2si.c
+++ /dev/null
@@ -1,30 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2019 Andes Technology Corporation
-#include <linux/uaccess.h>
-
-#include <asm/sfp-machine.h>
-#include <math-emu/soft-fp.h>
-#include <math-emu/double.h>
-
-void fd2si(void *ft, void *fa)
-{
- int r;
-
- FP_DECL_D(A);
- FP_DECL_EX;
-
- FP_UNPACK_DP(A, fa);
-
- if (A_c == FP_CLS_INF) {
- *(int *)ft = (A_s == 0) ? 0x7fffffff : 0x80000000;
- __FPU_FPCSR |= FP_EX_INVALID;
- } else if (A_c == FP_CLS_NAN) {
- *(int *)ft = 0xffffffff;
- __FPU_FPCSR |= FP_EX_INVALID;
- } else {
- FP_TO_INT_ROUND_D(r, A, 32, 1);
- __FPU_FPCSR |= FP_CUR_EXCEPTIONS;
- *(int *)ft = r;
- }
-
-}
diff --git a/arch/nds32/math-emu/fd2siz.c b/arch/nds32/math-emu/fd2siz.c
deleted file mode 100644
index 92fe6774f112..000000000000
--- a/arch/nds32/math-emu/fd2siz.c
+++ /dev/null
@@ -1,30 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2019 Andes Technology Corporation
-#include <linux/uaccess.h>
-
-#include <asm/sfp-machine.h>
-#include <math-emu/soft-fp.h>
-#include <math-emu/double.h>
-
-void fd2si_z(void *ft, void *fa)
-{
- int r;
-
- FP_DECL_D(A);
- FP_DECL_EX;
-
- FP_UNPACK_DP(A, fa);
-
- if (A_c == FP_CLS_INF) {
- *(int *)ft = (A_s == 0) ? 0x7fffffff : 0x80000000;
- __FPU_FPCSR |= FP_EX_INVALID;
- } else if (A_c == FP_CLS_NAN) {
- *(int *)ft = 0xffffffff;
- __FPU_FPCSR |= FP_EX_INVALID;
- } else {
- FP_TO_INT_D(r, A, 32, 1);
- __FPU_FPCSR |= FP_CUR_EXCEPTIONS;
- *(int *)ft = r;
- }
-
-}
diff --git a/arch/nds32/math-emu/fd2ui.c b/arch/nds32/math-emu/fd2ui.c
deleted file mode 100644
index a0423b699aa4..000000000000
--- a/arch/nds32/math-emu/fd2ui.c
+++ /dev/null
@@ -1,30 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2019 Andes Technology Corporation
-#include <linux/uaccess.h>
-
-#include <asm/sfp-machine.h>
-#include <math-emu/soft-fp.h>
-#include <math-emu/double.h>
-
-void fd2ui(void *ft, void *fa)
-{
- unsigned int r;
-
- FP_DECL_D(A);
- FP_DECL_EX;
-
- FP_UNPACK_DP(A, fa);
-
- if (A_c == FP_CLS_INF) {
- *(unsigned int *)ft = (A_s == 0) ? 0xffffffff : 0x00000000;
- __FPU_FPCSR |= FP_EX_INVALID;
- } else if (A_c == FP_CLS_NAN) {
- *(unsigned int *)ft = 0xffffffff;
- __FPU_FPCSR |= FP_EX_INVALID;
- } else {
- FP_TO_INT_ROUND_D(r, A, 32, 0);
- __FPU_FPCSR |= FP_CUR_EXCEPTIONS;
- *(unsigned int *)ft = r;
- }
-
-}
diff --git a/arch/nds32/math-emu/fd2uiz.c b/arch/nds32/math-emu/fd2uiz.c
deleted file mode 100644
index 8ae17cfce90d..000000000000
--- a/arch/nds32/math-emu/fd2uiz.c
+++ /dev/null
@@ -1,30 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2019 Andes Technology Corporation
-#include <linux/uaccess.h>
-
-#include <asm/sfp-machine.h>
-#include <math-emu/soft-fp.h>
-#include <math-emu/double.h>
-
-void fd2ui_z(void *ft, void *fa)
-{
- unsigned int r;
-
- FP_DECL_D(A);
- FP_DECL_EX;
-
- FP_UNPACK_DP(A, fa);
-
- if (A_c == FP_CLS_INF) {
- *(unsigned int *)ft = (A_s == 0) ? 0xffffffff : 0x00000000;
- __FPU_FPCSR |= FP_EX_INVALID;
- } else if (A_c == FP_CLS_NAN) {
- *(unsigned int *)ft = 0xffffffff;
- __FPU_FPCSR |= FP_EX_INVALID;
- } else {
- FP_TO_INT_D(r, A, 32, 0);
- __FPU_FPCSR |= FP_CUR_EXCEPTIONS;
- *(unsigned int *)ft = r;
- }
-
-}
diff --git a/arch/nds32/math-emu/fdivd.c b/arch/nds32/math-emu/fdivd.c
deleted file mode 100644
index 458e7e98b08e..000000000000
--- a/arch/nds32/math-emu/fdivd.c
+++ /dev/null
@@ -1,27 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2018 Andes Technology Corporation
-
-#include <linux/uaccess.h>
-#include <asm/sfp-machine.h>
-#include <math-emu/soft-fp.h>
-#include <math-emu/double.h>
-
-void fdivd(void *ft, void *fa, void *fb)
-{
- FP_DECL_D(A);
- FP_DECL_D(B);
- FP_DECL_D(R);
- FP_DECL_EX;
-
- FP_UNPACK_DP(A, fa);
- FP_UNPACK_DP(B, fb);
-
- if (B_c == FP_CLS_ZERO && A_c != FP_CLS_ZERO)
- FP_SET_EXCEPTION(FP_EX_DIVZERO);
-
- FP_DIV_D(R, A, B);
-
- FP_PACK_DP(ft, R);
-
- __FPU_FPCSR |= FP_CUR_EXCEPTIONS;
-}
diff --git a/arch/nds32/math-emu/fdivs.c b/arch/nds32/math-emu/fdivs.c
deleted file mode 100644
index c7d202159ce2..000000000000
--- a/arch/nds32/math-emu/fdivs.c
+++ /dev/null
@@ -1,26 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2018 Andes Technology Corporation
-#include <linux/uaccess.h>
-
-#include <asm/sfp-machine.h>
-#include <math-emu/soft-fp.h>
-#include <math-emu/single.h>
-void fdivs(void *ft, void *fa, void *fb)
-{
- FP_DECL_S(A);
- FP_DECL_S(B);
- FP_DECL_S(R);
- FP_DECL_EX;
-
- FP_UNPACK_SP(A, fa);
- FP_UNPACK_SP(B, fb);
-
- if (B_c == FP_CLS_ZERO && A_c != FP_CLS_ZERO)
- FP_SET_EXCEPTION(FP_EX_DIVZERO);
-
- FP_DIV_S(R, A, B);
-
- FP_PACK_SP(ft, R);
-
- __FPU_FPCSR |= FP_CUR_EXCEPTIONS;
-}
diff --git a/arch/nds32/math-emu/fmuld.c b/arch/nds32/math-emu/fmuld.c
deleted file mode 100644
index f3c77a45ddc2..000000000000
--- a/arch/nds32/math-emu/fmuld.c
+++ /dev/null
@@ -1,23 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2018 Andes Technology Corporation
-#include <linux/uaccess.h>
-
-#include <asm/sfp-machine.h>
-#include <math-emu/soft-fp.h>
-#include <math-emu/double.h>
-void fmuld(void *ft, void *fa, void *fb)
-{
- FP_DECL_D(A);
- FP_DECL_D(B);
- FP_DECL_D(R);
- FP_DECL_EX;
-
- FP_UNPACK_DP(A, fa);
- FP_UNPACK_DP(B, fb);
-
- FP_MUL_D(R, A, B);
-
- FP_PACK_DP(ft, R);
-
- __FPU_FPCSR |= FP_CUR_EXCEPTIONS;
-}
diff --git a/arch/nds32/math-emu/fmuls.c b/arch/nds32/math-emu/fmuls.c
deleted file mode 100644
index cf150df938f9..000000000000
--- a/arch/nds32/math-emu/fmuls.c
+++ /dev/null
@@ -1,23 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2018 Andes Technology Corporation
-#include <linux/uaccess.h>
-
-#include <asm/sfp-machine.h>
-#include <math-emu/soft-fp.h>
-#include <math-emu/single.h>
-void fmuls(void *ft, void *fa, void *fb)
-{
- FP_DECL_S(A);
- FP_DECL_S(B);
- FP_DECL_S(R);
- FP_DECL_EX;
-
- FP_UNPACK_SP(A, fa);
- FP_UNPACK_SP(B, fb);
-
- FP_MUL_S(R, A, B);
-
- FP_PACK_SP(ft, R);
-
- __FPU_FPCSR |= FP_CUR_EXCEPTIONS;
-}
diff --git a/arch/nds32/math-emu/fnegd.c b/arch/nds32/math-emu/fnegd.c
deleted file mode 100644
index de7ea6a0873e..000000000000
--- a/arch/nds32/math-emu/fnegd.c
+++ /dev/null
@@ -1,21 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2018 Andes Technology Corporation
-#include <linux/uaccess.h>
-
-#include <asm/sfp-machine.h>
-#include <math-emu/soft-fp.h>
-#include <math-emu/double.h>
-void fnegd(void *ft, void *fa)
-{
- FP_DECL_D(A);
- FP_DECL_D(R);
- FP_DECL_EX;
-
- FP_UNPACK_DP(A, fa);
-
- FP_NEG_D(R, A);
-
- FP_PACK_DP(ft, R);
-
- __FPU_FPCSR |= FP_CUR_EXCEPTIONS;
-}
diff --git a/arch/nds32/math-emu/fnegs.c b/arch/nds32/math-emu/fnegs.c
deleted file mode 100644
index 07270b326a77..000000000000
--- a/arch/nds32/math-emu/fnegs.c
+++ /dev/null
@@ -1,21 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2018 Andes Technology Corporation
-#include <linux/uaccess.h>
-
-#include <asm/sfp-machine.h>
-#include <math-emu/soft-fp.h>
-#include <math-emu/single.h>
-void fnegs(void *ft, void *fa)
-{
- FP_DECL_S(A);
- FP_DECL_S(R);
- FP_DECL_EX;
-
- FP_UNPACK_SP(A, fa);
-
- FP_NEG_S(R, A);
-
- FP_PACK_SP(ft, R);
-
- __FPU_FPCSR |= FP_CUR_EXCEPTIONS;
-}
diff --git a/arch/nds32/math-emu/fpuemu.c b/arch/nds32/math-emu/fpuemu.c
deleted file mode 100644
index 46558a15c0dc..000000000000
--- a/arch/nds32/math-emu/fpuemu.c
+++ /dev/null
@@ -1,406 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2018 Andes Technology Corporation
-
-#include <asm/bitfield.h>
-#include <asm/uaccess.h>
-#include <asm/sfp-machine.h>
-#include <asm/fpuemu.h>
-#include <asm/nds32_fpu_inst.h>
-
-#define DPFROMREG(dp, x) (dp = (void *)((unsigned long *)fpu_reg + 2*x))
-#ifdef __NDS32_EL__
-#define SPFROMREG(sp, x)\
- ((sp) = (void *)((unsigned long *)fpu_reg + (x^1)))
-#else
-#define SPFROMREG(sp, x) ((sp) = (void *)((unsigned long *)fpu_reg + x))
-#endif
-
-#define DEF3OP(name, p, f1, f2) \
-void fpemu_##name##p(void *ft, void *fa, void *fb) \
-{ \
- f1(fa, fa, fb); \
- f2(ft, ft, fa); \
-}
-
-#define DEF3OPNEG(name, p, f1, f2, f3) \
-void fpemu_##name##p(void *ft, void *fa, void *fb) \
-{ \
- f1(fa, fa, fb); \
- f2(ft, ft, fa); \
- f3(ft, ft); \
-}
-DEF3OP(fmadd, s, fmuls, fadds);
-DEF3OP(fmsub, s, fmuls, fsubs);
-DEF3OP(fmadd, d, fmuld, faddd);
-DEF3OP(fmsub, d, fmuld, fsubd);
-DEF3OPNEG(fnmadd, s, fmuls, fadds, fnegs);
-DEF3OPNEG(fnmsub, s, fmuls, fsubs, fnegs);
-DEF3OPNEG(fnmadd, d, fmuld, faddd, fnegd);
-DEF3OPNEG(fnmsub, d, fmuld, fsubd, fnegd);
-
-static const unsigned char cmptab[8] = {
- SF_CEQ,
- SF_CEQ,
- SF_CLT,
- SF_CLT,
- SF_CLT | SF_CEQ,
- SF_CLT | SF_CEQ,
- SF_CUN,
- SF_CUN
-};
-
-enum ARGTYPE {
- S1S = 1,
- S2S,
- S1D,
- CS,
- D1D,
- D2D,
- D1S,
- CD
-};
-union func_t {
- void (*t)(void *ft, void *fa, void *fb);
- void (*b)(void *ft, void *fa);
-};
-/*
- * Emulate a single FPU arithmetic instruction.
- */
-static int fpu_emu(struct fpu_struct *fpu_reg, unsigned long insn)
-{
- int rfmt; /* resulting format */
- union func_t func;
- int ftype = 0;
-
- switch (rfmt = NDS32Insn_OPCODE_COP0(insn)) {
- case fs1_op:{
- switch (NDS32Insn_OPCODE_BIT69(insn)) {
- case fadds_op:
- func.t = fadds;
- ftype = S2S;
- break;
- case fsubs_op:
- func.t = fsubs;
- ftype = S2S;
- break;
- case fmadds_op:
- func.t = fpemu_fmadds;
- ftype = S2S;
- break;
- case fmsubs_op:
- func.t = fpemu_fmsubs;
- ftype = S2S;
- break;
- case fnmadds_op:
- func.t = fpemu_fnmadds;
- ftype = S2S;
- break;
- case fnmsubs_op:
- func.t = fpemu_fnmsubs;
- ftype = S2S;
- break;
- case fmuls_op:
- func.t = fmuls;
- ftype = S2S;
- break;
- case fdivs_op:
- func.t = fdivs;
- ftype = S2S;
- break;
- case fs1_f2op_op:
- switch (NDS32Insn_OPCODE_BIT1014(insn)) {
- case fs2d_op:
- func.b = fs2d;
- ftype = S1D;
- break;
- case fs2si_op:
- func.b = fs2si;
- ftype = S1S;
- break;
- case fs2si_z_op:
- func.b = fs2si_z;
- ftype = S1S;
- break;
- case fs2ui_op:
- func.b = fs2ui;
- ftype = S1S;
- break;
- case fs2ui_z_op:
- func.b = fs2ui_z;
- ftype = S1S;
- break;
- case fsi2s_op:
- func.b = fsi2s;
- ftype = S1S;
- break;
- case fui2s_op:
- func.b = fui2s;
- ftype = S1S;
- break;
- case fsqrts_op:
- func.b = fsqrts;
- ftype = S1S;
- break;
- default:
- return SIGILL;
- }
- break;
- default:
- return SIGILL;
- }
- break;
- }
- case fs2_op:
- switch (NDS32Insn_OPCODE_BIT69(insn)) {
- case fcmpeqs_op:
- case fcmpeqs_e_op:
- case fcmplts_op:
- case fcmplts_e_op:
- case fcmples_op:
- case fcmples_e_op:
- case fcmpuns_op:
- case fcmpuns_e_op:
- ftype = CS;
- break;
- default:
- return SIGILL;
- }
- break;
- case fd1_op:{
- switch (NDS32Insn_OPCODE_BIT69(insn)) {
- case faddd_op:
- func.t = faddd;
- ftype = D2D;
- break;
- case fsubd_op:
- func.t = fsubd;
- ftype = D2D;
- break;
- case fmaddd_op:
- func.t = fpemu_fmaddd;
- ftype = D2D;
- break;
- case fmsubd_op:
- func.t = fpemu_fmsubd;
- ftype = D2D;
- break;
- case fnmaddd_op:
- func.t = fpemu_fnmaddd;
- ftype = D2D;
- break;
- case fnmsubd_op:
- func.t = fpemu_fnmsubd;
- ftype = D2D;
- break;
- case fmuld_op:
- func.t = fmuld;
- ftype = D2D;
- break;
- case fdivd_op:
- func.t = fdivd;
- ftype = D2D;
- break;
- case fd1_f2op_op:
- switch (NDS32Insn_OPCODE_BIT1014(insn)) {
- case fd2s_op:
- func.b = fd2s;
- ftype = D1S;
- break;
- case fd2si_op:
- func.b = fd2si;
- ftype = D1S;
- break;
- case fd2si_z_op:
- func.b = fd2si_z;
- ftype = D1S;
- break;
- case fd2ui_op:
- func.b = fd2ui;
- ftype = D1S;
- break;
- case fd2ui_z_op:
- func.b = fd2ui_z;
- ftype = D1S;
- break;
- case fsi2d_op:
- func.b = fsi2d;
- ftype = D1S;
- break;
- case fui2d_op:
- func.b = fui2d;
- ftype = D1S;
- break;
- case fsqrtd_op:
- func.b = fsqrtd;
- ftype = D1D;
- break;
- default:
- return SIGILL;
- }
- break;
- default:
- return SIGILL;
-
- }
- break;
- }
-
- case fd2_op:
- switch (NDS32Insn_OPCODE_BIT69(insn)) {
- case fcmpeqd_op:
- case fcmpeqd_e_op:
- case fcmpltd_op:
- case fcmpltd_e_op:
- case fcmpled_op:
- case fcmpled_e_op:
- case fcmpund_op:
- case fcmpund_e_op:
- ftype = CD;
- break;
- default:
- return SIGILL;
- }
- break;
-
- default:
- return SIGILL;
- }
-
- switch (ftype) {
- case S1S:{
- void *ft, *fa;
-
- SPFROMREG(ft, NDS32Insn_OPCODE_Rt(insn));
- SPFROMREG(fa, NDS32Insn_OPCODE_Ra(insn));
- func.b(ft, fa);
- break;
- }
- case S2S:{
- void *ft, *fa, *fb;
-
- SPFROMREG(ft, NDS32Insn_OPCODE_Rt(insn));
- SPFROMREG(fa, NDS32Insn_OPCODE_Ra(insn));
- SPFROMREG(fb, NDS32Insn_OPCODE_Rb(insn));
- func.t(ft, fa, fb);
- break;
- }
- case S1D:{
- void *ft, *fa;
-
- DPFROMREG(ft, NDS32Insn_OPCODE_Rt(insn));
- SPFROMREG(fa, NDS32Insn_OPCODE_Ra(insn));
- func.b(ft, fa);
- break;
- }
- case CS:{
- unsigned int cmpop = NDS32Insn_OPCODE_BIT69(insn);
- void *ft, *fa, *fb;
-
- SPFROMREG(ft, NDS32Insn_OPCODE_Rt(insn));
- SPFROMREG(fa, NDS32Insn_OPCODE_Ra(insn));
- SPFROMREG(fb, NDS32Insn_OPCODE_Rb(insn));
- if (cmpop < 0x8) {
- cmpop = cmptab[cmpop];
- fcmps(ft, fa, fb, cmpop);
- } else
- return SIGILL;
- break;
- }
- case D1D:{
- void *ft, *fa;
-
- DPFROMREG(ft, NDS32Insn_OPCODE_Rt(insn));
- DPFROMREG(fa, NDS32Insn_OPCODE_Ra(insn));
- func.b(ft, fa);
- break;
- }
- case D2D:{
- void *ft, *fa, *fb;
-
- DPFROMREG(ft, NDS32Insn_OPCODE_Rt(insn));
- DPFROMREG(fa, NDS32Insn_OPCODE_Ra(insn));
- DPFROMREG(fb, NDS32Insn_OPCODE_Rb(insn));
- func.t(ft, fa, fb);
- break;
- }
- case D1S:{
- void *ft, *fa;
-
- SPFROMREG(ft, NDS32Insn_OPCODE_Rt(insn));
- DPFROMREG(fa, NDS32Insn_OPCODE_Ra(insn));
- func.b(ft, fa);
- break;
- }
- case CD:{
- unsigned int cmpop = NDS32Insn_OPCODE_BIT69(insn);
- void *ft, *fa, *fb;
-
- SPFROMREG(ft, NDS32Insn_OPCODE_Rt(insn));
- DPFROMREG(fa, NDS32Insn_OPCODE_Ra(insn));
- DPFROMREG(fb, NDS32Insn_OPCODE_Rb(insn));
- if (cmpop < 0x8) {
- cmpop = cmptab[cmpop];
- fcmpd(ft, fa, fb, cmpop);
- } else
- return SIGILL;
- break;
- }
- default:
- return SIGILL;
- }
-
- /*
- * If an exception is required, generate a tidy SIGFPE exception.
- */
-#if IS_ENABLED(CONFIG_SUPPORT_DENORMAL_ARITHMETIC)
- if (((fpu_reg->fpcsr << 5) & fpu_reg->fpcsr & FPCSR_mskALLE_NO_UDF_IEXE)
- || ((fpu_reg->fpcsr << 5) & (fpu_reg->UDF_IEX_trap))) {
-#else
- if ((fpu_reg->fpcsr << 5) & fpu_reg->fpcsr & FPCSR_mskALLE) {
-#endif
- return SIGFPE;
- }
- return 0;
-}
-
-int do_fpuemu(struct pt_regs *regs, struct fpu_struct *fpu)
-{
- unsigned long insn = 0, addr = regs->ipc;
- unsigned long emulpc, contpc;
- unsigned char *pc = (void *)&insn;
- char c;
- int i = 0, ret;
-
- for (i = 0; i < 4; i++) {
- if (__get_user(c, (unsigned char *)addr++))
- return SIGBUS;
- *pc++ = c;
- }
-
- insn = be32_to_cpu(insn);
-
- emulpc = regs->ipc;
- contpc = regs->ipc + 4;
-
- if (NDS32Insn_OPCODE(insn) != cop0_op)
- return SIGILL;
-
- switch (NDS32Insn_OPCODE_COP0(insn)) {
- case fs1_op:
- case fs2_op:
- case fd1_op:
- case fd2_op:
- {
- /* a real fpu computation instruction */
- ret = fpu_emu(fpu, insn);
- if (!ret)
- regs->ipc = contpc;
- }
- break;
-
- default:
- return SIGILL;
- }
-
- return ret;
-}
diff --git a/arch/nds32/math-emu/fs2d.c b/arch/nds32/math-emu/fs2d.c
deleted file mode 100644
index 0e8db9035631..000000000000
--- a/arch/nds32/math-emu/fs2d.c
+++ /dev/null
@@ -1,23 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2018 Andes Technology Corporation
-
-#include <linux/uaccess.h>
-#include <asm/sfp-machine.h>
-#include <math-emu/double.h>
-#include <math-emu/single.h>
-#include <math-emu/soft-fp.h>
-
-void fs2d(void *ft, void *fa)
-{
- FP_DECL_S(A);
- FP_DECL_D(R);
- FP_DECL_EX;
-
- FP_UNPACK_SP(A, fa);
-
- FP_CONV(D, S, 2, 1, R, A);
-
- FP_PACK_DP(ft, R);
-
- __FPU_FPCSR |= FP_CUR_EXCEPTIONS;
-}
diff --git a/arch/nds32/math-emu/fs2si.c b/arch/nds32/math-emu/fs2si.c
deleted file mode 100644
index b4931d60980e..000000000000
--- a/arch/nds32/math-emu/fs2si.c
+++ /dev/null
@@ -1,29 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2019 Andes Technology Corporation
-#include <linux/uaccess.h>
-
-#include <asm/sfp-machine.h>
-#include <math-emu/soft-fp.h>
-#include <math-emu/single.h>
-
-void fs2si(void *ft, void *fa)
-{
- int r;
-
- FP_DECL_S(A);
- FP_DECL_EX;
-
- FP_UNPACK_SP(A, fa);
-
- if (A_c == FP_CLS_INF) {
- *(int *)ft = (A_s == 0) ? 0x7fffffff : 0x80000000;
- __FPU_FPCSR |= FP_EX_INVALID;
- } else if (A_c == FP_CLS_NAN) {
- *(int *)ft = 0xffffffff;
- __FPU_FPCSR |= FP_EX_INVALID;
- } else {
- FP_TO_INT_ROUND_S(r, A, 32, 1);
- __FPU_FPCSR |= FP_CUR_EXCEPTIONS;
- *(int *)ft = r;
- }
-}
diff --git a/arch/nds32/math-emu/fs2siz.c b/arch/nds32/math-emu/fs2siz.c
deleted file mode 100644
index 1c2b99ce3e38..000000000000
--- a/arch/nds32/math-emu/fs2siz.c
+++ /dev/null
@@ -1,29 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2019 Andes Technology Corporation
-#include <linux/uaccess.h>
-
-#include <asm/sfp-machine.h>
-#include <math-emu/soft-fp.h>
-#include <math-emu/single.h>
-
-void fs2si_z(void *ft, void *fa)
-{
- int r;
-
- FP_DECL_S(A);
- FP_DECL_EX;
-
- FP_UNPACK_SP(A, fa);
-
- if (A_c == FP_CLS_INF) {
- *(int *)ft = (A_s == 0) ? 0x7fffffff : 0x80000000;
- __FPU_FPCSR |= FP_EX_INVALID;
- } else if (A_c == FP_CLS_NAN) {
- *(int *)ft = 0xffffffff;
- __FPU_FPCSR |= FP_EX_INVALID;
- } else {
- FP_TO_INT_S(r, A, 32, 1);
- __FPU_FPCSR |= FP_CUR_EXCEPTIONS;
- *(int *)ft = r;
- }
-}
diff --git a/arch/nds32/math-emu/fs2ui.c b/arch/nds32/math-emu/fs2ui.c
deleted file mode 100644
index c337f0384d06..000000000000
--- a/arch/nds32/math-emu/fs2ui.c
+++ /dev/null
@@ -1,29 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2019 Andes Technology Corporation
-#include <linux/uaccess.h>
-
-#include <asm/sfp-machine.h>
-#include <math-emu/soft-fp.h>
-#include <math-emu/single.h>
-
-void fs2ui(void *ft, void *fa)
-{
- unsigned int r;
-
- FP_DECL_S(A);
- FP_DECL_EX;
-
- FP_UNPACK_SP(A, fa);
-
- if (A_c == FP_CLS_INF) {
- *(unsigned int *)ft = (A_s == 0) ? 0xffffffff : 0x00000000;
- __FPU_FPCSR |= FP_EX_INVALID;
- } else if (A_c == FP_CLS_NAN) {
- *(unsigned int *)ft = 0xffffffff;
- __FPU_FPCSR |= FP_EX_INVALID;
- } else {
- FP_TO_INT_ROUND_S(r, A, 32, 0);
- __FPU_FPCSR |= FP_CUR_EXCEPTIONS;
- *(unsigned int *)ft = r;
- }
-}
diff --git a/arch/nds32/math-emu/fs2uiz.c b/arch/nds32/math-emu/fs2uiz.c
deleted file mode 100644
index 22c5e4768044..000000000000
--- a/arch/nds32/math-emu/fs2uiz.c
+++ /dev/null
@@ -1,30 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2019 Andes Technology Corporation
-#include <linux/uaccess.h>
-
-#include <asm/sfp-machine.h>
-#include <math-emu/soft-fp.h>
-#include <math-emu/single.h>
-
-void fs2ui_z(void *ft, void *fa)
-{
- unsigned int r;
-
- FP_DECL_S(A);
- FP_DECL_EX;
-
- FP_UNPACK_SP(A, fa);
-
- if (A_c == FP_CLS_INF) {
- *(unsigned int *)ft = (A_s == 0) ? 0xffffffff : 0x00000000;
- __FPU_FPCSR |= FP_EX_INVALID;
- } else if (A_c == FP_CLS_NAN) {
- *(unsigned int *)ft = 0xffffffff;
- __FPU_FPCSR |= FP_EX_INVALID;
- } else {
- FP_TO_INT_S(r, A, 32, 0);
- __FPU_FPCSR |= FP_CUR_EXCEPTIONS;
- *(unsigned int *)ft = r;
- }
-
-}
diff --git a/arch/nds32/math-emu/fsi2d.c b/arch/nds32/math-emu/fsi2d.c
deleted file mode 100644
index 6b04cec0c5c5..000000000000
--- a/arch/nds32/math-emu/fsi2d.c
+++ /dev/null
@@ -1,22 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2019 Andes Technology Corporation
-#include <linux/uaccess.h>
-
-#include <asm/sfp-machine.h>
-#include <math-emu/soft-fp.h>
-#include <math-emu/double.h>
-
-void fsi2d(void *ft, void *fa)
-{
- int a = *(int *)fa;
-
- FP_DECL_D(R);
- FP_DECL_EX;
-
- FP_FROM_INT_D(R, a, 32, int);
-
- FP_PACK_DP(ft, R);
-
- __FPU_FPCSR |= FP_CUR_EXCEPTIONS;
-
-}
diff --git a/arch/nds32/math-emu/fsi2s.c b/arch/nds32/math-emu/fsi2s.c
deleted file mode 100644
index 689864a5df90..000000000000
--- a/arch/nds32/math-emu/fsi2s.c
+++ /dev/null
@@ -1,22 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2019 Andes Technology Corporation
-#include <linux/uaccess.h>
-
-#include <asm/sfp-machine.h>
-#include <math-emu/soft-fp.h>
-#include <math-emu/single.h>
-
-void fsi2s(void *ft, void *fa)
-{
- int a = *(int *)fa;
-
- FP_DECL_S(R);
- FP_DECL_EX;
-
- FP_FROM_INT_S(R, a, 32, int);
-
- FP_PACK_SP(ft, R);
-
- __FPU_FPCSR |= FP_CUR_EXCEPTIONS;
-
-}
diff --git a/arch/nds32/math-emu/fsqrtd.c b/arch/nds32/math-emu/fsqrtd.c
deleted file mode 100644
index c3a8dbd81d4e..000000000000
--- a/arch/nds32/math-emu/fsqrtd.c
+++ /dev/null
@@ -1,21 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2018 Andes Technology Corporation
-
-#include <linux/uaccess.h>
-#include <asm/sfp-machine.h>
-#include <math-emu/soft-fp.h>
-#include <math-emu/double.h>
-void fsqrtd(void *ft, void *fa)
-{
- FP_DECL_D(A);
- FP_DECL_D(R);
- FP_DECL_EX;
-
- FP_UNPACK_DP(A, fa);
-
- FP_SQRT_D(R, A);
-
- FP_PACK_DP(ft, R);
-
- __FPU_FPCSR |= FP_CUR_EXCEPTIONS;
-}
diff --git a/arch/nds32/math-emu/fsqrts.c b/arch/nds32/math-emu/fsqrts.c
deleted file mode 100644
index 4c6f94b27328..000000000000
--- a/arch/nds32/math-emu/fsqrts.c
+++ /dev/null
@@ -1,21 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2018 Andes Technology Corporation
-
-#include <linux/uaccess.h>
-#include <asm/sfp-machine.h>
-#include <math-emu/soft-fp.h>
-#include <math-emu/single.h>
-void fsqrts(void *ft, void *fa)
-{
- FP_DECL_S(A);
- FP_DECL_S(R);
- FP_DECL_EX;
-
- FP_UNPACK_SP(A, fa);
-
- FP_SQRT_S(R, A);
-
- FP_PACK_SP(ft, R);
-
- __FPU_FPCSR |= FP_CUR_EXCEPTIONS;
-}
diff --git a/arch/nds32/math-emu/fsubd.c b/arch/nds32/math-emu/fsubd.c
deleted file mode 100644
index 81b6a0d02a1f..000000000000
--- a/arch/nds32/math-emu/fsubd.c
+++ /dev/null
@@ -1,27 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2018 Andes Technology Corporation
-#include <linux/uaccess.h>
-
-#include <asm/sfp-machine.h>
-#include <math-emu/soft-fp.h>
-#include <math-emu/double.h>
-void fsubd(void *ft, void *fa, void *fb)
-{
-
- FP_DECL_D(A);
- FP_DECL_D(B);
- FP_DECL_D(R);
- FP_DECL_EX;
-
- FP_UNPACK_DP(A, fa);
- FP_UNPACK_DP(B, fb);
-
- if (B_c != FP_CLS_NAN)
- B_s ^= 1;
-
- FP_ADD_D(R, A, B);
-
- FP_PACK_DP(ft, R);
-
- __FPU_FPCSR |= FP_CUR_EXCEPTIONS;
-}
diff --git a/arch/nds32/math-emu/fsubs.c b/arch/nds32/math-emu/fsubs.c
deleted file mode 100644
index 61ddd9708465..000000000000
--- a/arch/nds32/math-emu/fsubs.c
+++ /dev/null
@@ -1,27 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2018 Andes Technology Corporation
-#include <linux/uaccess.h>
-
-#include <asm/sfp-machine.h>
-#include <math-emu/soft-fp.h>
-#include <math-emu/single.h>
-void fsubs(void *ft, void *fa, void *fb)
-{
-
- FP_DECL_S(A);
- FP_DECL_S(B);
- FP_DECL_S(R);
- FP_DECL_EX;
-
- FP_UNPACK_SP(A, fa);
- FP_UNPACK_SP(B, fb);
-
- if (B_c != FP_CLS_NAN)
- B_s ^= 1;
-
- FP_ADD_S(R, A, B);
-
- FP_PACK_SP(ft, R);
-
- __FPU_FPCSR |= FP_CUR_EXCEPTIONS;
-}
diff --git a/arch/nds32/math-emu/fui2d.c b/arch/nds32/math-emu/fui2d.c
deleted file mode 100644
index 9689d33a8d50..000000000000
--- a/arch/nds32/math-emu/fui2d.c
+++ /dev/null
@@ -1,22 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2019 Andes Technology Corporation
-#include <linux/uaccess.h>
-
-#include <asm/sfp-machine.h>
-#include <math-emu/soft-fp.h>
-#include <math-emu/double.h>
-
-void fui2d(void *ft, void *fa)
-{
- unsigned int a = *(unsigned int *)fa;
-
- FP_DECL_D(R);
- FP_DECL_EX;
-
- FP_FROM_INT_D(R, a, 32, int);
-
- FP_PACK_DP(ft, R);
-
- __FPU_FPCSR |= FP_CUR_EXCEPTIONS;
-
-}
diff --git a/arch/nds32/math-emu/fui2s.c b/arch/nds32/math-emu/fui2s.c
deleted file mode 100644
index f70f0762547d..000000000000
--- a/arch/nds32/math-emu/fui2s.c
+++ /dev/null
@@ -1,22 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2019 Andes Technology Corporation
-#include <linux/uaccess.h>
-
-#include <asm/sfp-machine.h>
-#include <math-emu/soft-fp.h>
-#include <math-emu/single.h>
-
-void fui2s(void *ft, void *fa)
-{
- unsigned int a = *(unsigned int *)fa;
-
- FP_DECL_S(R);
- FP_DECL_EX;
-
- FP_FROM_INT_S(R, a, 32, int);
-
- FP_PACK_SP(ft, R);
-
- __FPU_FPCSR |= FP_CUR_EXCEPTIONS;
-
-}
diff --git a/arch/nds32/mm/Makefile b/arch/nds32/mm/Makefile
deleted file mode 100644
index 14fb2e8eb036..000000000000
--- a/arch/nds32/mm/Makefile
+++ /dev/null
@@ -1,10 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-obj-y := extable.o tlb.o fault.o init.o mmap.o \
- mm-nds32.o cacheflush.o proc.o
-
-obj-$(CONFIG_ALIGNMENT_TRAP) += alignment.o
-
-ifdef CONFIG_FUNCTION_TRACER
-CFLAGS_REMOVE_proc.o = $(CC_FLAGS_FTRACE)
-endif
-CFLAGS_proc.o += -fomit-frame-pointer
diff --git a/arch/nds32/mm/alignment.c b/arch/nds32/mm/alignment.c
deleted file mode 100644
index 1eb7ded6992b..000000000000
--- a/arch/nds32/mm/alignment.c
+++ /dev/null
@@ -1,578 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <linux/proc_fs.h>
-#include <linux/uaccess.h>
-#include <linux/sysctl.h>
-#include <asm/unaligned.h>
-
-#define DEBUG(enable, tagged, ...) \
- do{ \
- if (enable) { \
- if (tagged) \
- pr_warn("[ %30s() ] ", __func__); \
- pr_warn(__VA_ARGS__); \
- } \
- } while (0)
-
-#define RT(inst) (((inst) >> 20) & 0x1FUL)
-#define RA(inst) (((inst) >> 15) & 0x1FUL)
-#define RB(inst) (((inst) >> 10) & 0x1FUL)
-#define SV(inst) (((inst) >> 8) & 0x3UL)
-#define IMM(inst) (((inst) >> 0) & 0x7FFFUL)
-
-#define RA3(inst) (((inst) >> 3) & 0x7UL)
-#define RT3(inst) (((inst) >> 6) & 0x7UL)
-#define IMM3U(inst) (((inst) >> 0) & 0x7UL)
-
-#define RA5(inst) (((inst) >> 0) & 0x1FUL)
-#define RT4(inst) (((inst) >> 5) & 0xFUL)
-
-#define GET_IMMSVAL(imm_value) \
- (((imm_value >> 14) & 0x1) ? (imm_value - 0x8000) : imm_value)
-
-#define __get8_data(val,addr,err) \
- __asm__( \
- "1: lbi.bi %1, [%2], #1\n" \
- "2:\n" \
- " .pushsection .text.fixup,\"ax\"\n" \
- " .align 2\n" \
- "3: movi %0, #1\n" \
- " j 2b\n" \
- " .popsection\n" \
- " .pushsection __ex_table,\"a\"\n" \
- " .align 3\n" \
- " .long 1b, 3b\n" \
- " .popsection\n" \
- : "=r" (err), "=&r" (val), "=r" (addr) \
- : "0" (err), "2" (addr))
-
-#define get16_data(addr, val_ptr) \
- do { \
- unsigned int err = 0, v, a = addr; \
- __get8_data(v,a,err); \
- *val_ptr = v << 0; \
- __get8_data(v,a,err); \
- *val_ptr |= v << 8; \
- if (err) \
- goto fault; \
- *val_ptr = le16_to_cpu(*val_ptr); \
- } while(0)
-
-#define get32_data(addr, val_ptr) \
- do { \
- unsigned int err = 0, v, a = addr; \
- __get8_data(v,a,err); \
- *val_ptr = v << 0; \
- __get8_data(v,a,err); \
- *val_ptr |= v << 8; \
- __get8_data(v,a,err); \
- *val_ptr |= v << 16; \
- __get8_data(v,a,err); \
- *val_ptr |= v << 24; \
- if (err) \
- goto fault; \
- *val_ptr = le32_to_cpu(*val_ptr); \
- } while(0)
-
-#define get_data(addr, val_ptr, len) \
- if (len == 2) \
- get16_data(addr, val_ptr); \
- else \
- get32_data(addr, val_ptr);
-
-#define set16_data(addr, val) \
- do { \
- unsigned int err = 0, *ptr = addr ; \
- val = le32_to_cpu(val); \
- __asm__( \
- "1: sbi.bi %2, [%1], #1\n" \
- " srli %2, %2, #8\n" \
- "2: sbi %2, [%1]\n" \
- "3:\n" \
- " .pushsection .text.fixup,\"ax\"\n" \
- " .align 2\n" \
- "4: movi %0, #1\n" \
- " j 3b\n" \
- " .popsection\n" \
- " .pushsection __ex_table,\"a\"\n" \
- " .align 3\n" \
- " .long 1b, 4b\n" \
- " .long 2b, 4b\n" \
- " .popsection\n" \
- : "=r" (err), "+r" (ptr), "+r" (val) \
- : "0" (err) \
- ); \
- if (err) \
- goto fault; \
- } while(0)
-
-#define set32_data(addr, val) \
- do { \
- unsigned int err = 0, *ptr = addr ; \
- val = le32_to_cpu(val); \
- __asm__( \
- "1: sbi.bi %2, [%1], #1\n" \
- " srli %2, %2, #8\n" \
- "2: sbi.bi %2, [%1], #1\n" \
- " srli %2, %2, #8\n" \
- "3: sbi.bi %2, [%1], #1\n" \
- " srli %2, %2, #8\n" \
- "4: sbi %2, [%1]\n" \
- "5:\n" \
- " .pushsection .text.fixup,\"ax\"\n" \
- " .align 2\n" \
- "6: movi %0, #1\n" \
- " j 5b\n" \
- " .popsection\n" \
- " .pushsection __ex_table,\"a\"\n" \
- " .align 3\n" \
- " .long 1b, 6b\n" \
- " .long 2b, 6b\n" \
- " .long 3b, 6b\n" \
- " .long 4b, 6b\n" \
- " .popsection\n" \
- : "=r" (err), "+r" (ptr), "+r" (val) \
- : "0" (err) \
- ); \
- if (err) \
- goto fault; \
- } while(0)
-#define set_data(addr, val, len) \
- if (len == 2) \
- set16_data(addr, val); \
- else \
- set32_data(addr, val);
-#define NDS32_16BIT_INSTRUCTION 0x80000000
-
-extern pte_t va_present(struct mm_struct *mm, unsigned long addr);
-extern pte_t va_kernel_present(unsigned long addr);
-extern int va_readable(struct pt_regs *regs, unsigned long addr);
-extern int va_writable(struct pt_regs *regs, unsigned long addr);
-
-int unalign_access_mode = 0, unalign_access_debug = 0;
-
-static inline unsigned long *idx_to_addr(struct pt_regs *regs, int idx)
-{
- /* this should be consistent with ptrace.h */
- if (idx >= 0 && idx <= 25) /* R0-R25 */
- return ®s->uregs[0] + idx;
- else if (idx >= 28 && idx <= 30) /* FP, GP, LP */
- return ®s->fp + (idx - 28);
- else if (idx == 31) /* SP */
- return ®s->sp;
- else
- return NULL; /* cause a segfault */
-}
-
-static inline unsigned long get_inst(unsigned long addr)
-{
- return be32_to_cpu(get_unaligned((u32 *) addr));
-}
-
-static inline unsigned long sign_extend(unsigned long val, int len)
-{
- unsigned long ret = 0;
- unsigned char *s, *t;
- int i = 0;
-
- val = cpu_to_le32(val);
-
- s = (void *)&val;
- t = (void *)&ret;
-
- while (i++ < len)
- *t++ = *s++;
-
- if (((*(t - 1)) & 0x80) && (i < 4)) {
-
- while (i++ <= 4)
- *t++ = 0xff;
- }
-
- return le32_to_cpu(ret);
-}
-
-static inline int do_16(unsigned long inst, struct pt_regs *regs)
-{
- int imm, regular, load, len, addr_mode, idx_mode;
- unsigned long unaligned_addr, target_val, source_idx, target_idx,
- shift = 0;
- switch ((inst >> 9) & 0x3F) {
-
- case 0x12: /* LHI333 */
- imm = 1;
- regular = 1;
- load = 1;
- len = 2;
- addr_mode = 3;
- idx_mode = 3;
- break;
- case 0x10: /* LWI333 */
- imm = 1;
- regular = 1;
- load = 1;
- len = 4;
- addr_mode = 3;
- idx_mode = 3;
- break;
- case 0x11: /* LWI333.bi */
- imm = 1;
- regular = 0;
- load = 1;
- len = 4;
- addr_mode = 3;
- idx_mode = 3;
- break;
- case 0x1A: /* LWI450 */
- imm = 0;
- regular = 1;
- load = 1;
- len = 4;
- addr_mode = 5;
- idx_mode = 4;
- break;
- case 0x16: /* SHI333 */
- imm = 1;
- regular = 1;
- load = 0;
- len = 2;
- addr_mode = 3;
- idx_mode = 3;
- break;
- case 0x14: /* SWI333 */
- imm = 1;
- regular = 1;
- load = 0;
- len = 4;
- addr_mode = 3;
- idx_mode = 3;
- break;
- case 0x15: /* SWI333.bi */
- imm = 1;
- regular = 0;
- load = 0;
- len = 4;
- addr_mode = 3;
- idx_mode = 3;
- break;
- case 0x1B: /* SWI450 */
- imm = 0;
- regular = 1;
- load = 0;
- len = 4;
- addr_mode = 5;
- idx_mode = 4;
- break;
-
- default:
- return -EFAULT;
- }
-
- if (addr_mode == 3) {
- unaligned_addr = *idx_to_addr(regs, RA3(inst));
- source_idx = RA3(inst);
- } else {
- unaligned_addr = *idx_to_addr(regs, RA5(inst));
- source_idx = RA5(inst);
- }
-
- if (idx_mode == 3)
- target_idx = RT3(inst);
- else
- target_idx = RT4(inst);
-
- if (imm)
- shift = IMM3U(inst) * len;
-
- if (regular)
- unaligned_addr += shift;
-
- if (load) {
- if (!access_ok((void *)unaligned_addr, len))
- return -EACCES;
-
- get_data(unaligned_addr, &target_val, len);
- *idx_to_addr(regs, target_idx) = target_val;
- } else {
- if (!access_ok((void *)unaligned_addr, len))
- return -EACCES;
- target_val = *idx_to_addr(regs, target_idx);
- set_data((void *)unaligned_addr, target_val, len);
- }
-
- if (!regular)
- *idx_to_addr(regs, source_idx) = unaligned_addr + shift;
- regs->ipc += 2;
-
- return 0;
-fault:
- return -EACCES;
-}
-
-static inline int do_32(unsigned long inst, struct pt_regs *regs)
-{
- int imm, regular, load, len, sign_ext;
- unsigned long unaligned_addr, target_val, shift;
-
- unaligned_addr = *idx_to_addr(regs, RA(inst));
-
- switch ((inst >> 25) << 1) {
-
- case 0x02: /* LHI */
- imm = 1;
- regular = 1;
- load = 1;
- len = 2;
- sign_ext = 0;
- break;
- case 0x0A: /* LHI.bi */
- imm = 1;
- regular = 0;
- load = 1;
- len = 2;
- sign_ext = 0;
- break;
- case 0x22: /* LHSI */
- imm = 1;
- regular = 1;
- load = 1;
- len = 2;
- sign_ext = 1;
- break;
- case 0x2A: /* LHSI.bi */
- imm = 1;
- regular = 0;
- load = 1;
- len = 2;
- sign_ext = 1;
- break;
- case 0x04: /* LWI */
- imm = 1;
- regular = 1;
- load = 1;
- len = 4;
- sign_ext = 0;
- break;
- case 0x0C: /* LWI.bi */
- imm = 1;
- regular = 0;
- load = 1;
- len = 4;
- sign_ext = 0;
- break;
- case 0x12: /* SHI */
- imm = 1;
- regular = 1;
- load = 0;
- len = 2;
- sign_ext = 0;
- break;
- case 0x1A: /* SHI.bi */
- imm = 1;
- regular = 0;
- load = 0;
- len = 2;
- sign_ext = 0;
- break;
- case 0x14: /* SWI */
- imm = 1;
- regular = 1;
- load = 0;
- len = 4;
- sign_ext = 0;
- break;
- case 0x1C: /* SWI.bi */
- imm = 1;
- regular = 0;
- load = 0;
- len = 4;
- sign_ext = 0;
- break;
-
- default:
- switch (inst & 0xff) {
-
- case 0x01: /* LH */
- imm = 0;
- regular = 1;
- load = 1;
- len = 2;
- sign_ext = 0;
- break;
- case 0x05: /* LH.bi */
- imm = 0;
- regular = 0;
- load = 1;
- len = 2;
- sign_ext = 0;
- break;
- case 0x11: /* LHS */
- imm = 0;
- regular = 1;
- load = 1;
- len = 2;
- sign_ext = 1;
- break;
- case 0x15: /* LHS.bi */
- imm = 0;
- regular = 0;
- load = 1;
- len = 2;
- sign_ext = 1;
- break;
- case 0x02: /* LW */
- imm = 0;
- regular = 1;
- load = 1;
- len = 4;
- sign_ext = 0;
- break;
- case 0x06: /* LW.bi */
- imm = 0;
- regular = 0;
- load = 1;
- len = 4;
- sign_ext = 0;
- break;
- case 0x09: /* SH */
- imm = 0;
- regular = 1;
- load = 0;
- len = 2;
- sign_ext = 0;
- break;
- case 0x0D: /* SH.bi */
- imm = 0;
- regular = 0;
- load = 0;
- len = 2;
- sign_ext = 0;
- break;
- case 0x0A: /* SW */
- imm = 0;
- regular = 1;
- load = 0;
- len = 4;
- sign_ext = 0;
- break;
- case 0x0E: /* SW.bi */
- imm = 0;
- regular = 0;
- load = 0;
- len = 4;
- sign_ext = 0;
- break;
-
- default:
- return -EFAULT;
- }
- }
-
- if (imm)
- shift = GET_IMMSVAL(IMM(inst)) * len;
- else
- shift = *idx_to_addr(regs, RB(inst)) << SV(inst);
-
- if (regular)
- unaligned_addr += shift;
-
- if (load) {
-
- if (!access_ok((void *)unaligned_addr, len))
- return -EACCES;
-
- get_data(unaligned_addr, &target_val, len);
-
- if (sign_ext)
- *idx_to_addr(regs, RT(inst)) =
- sign_extend(target_val, len);
- else
- *idx_to_addr(regs, RT(inst)) = target_val;
- } else {
-
- if (!access_ok((void *)unaligned_addr, len))
- return -EACCES;
-
- target_val = *idx_to_addr(regs, RT(inst));
- set_data((void *)unaligned_addr, target_val, len);
- }
-
- if (!regular)
- *idx_to_addr(regs, RA(inst)) = unaligned_addr + shift;
-
- regs->ipc += 4;
-
- return 0;
-fault:
- return -EACCES;
-}
-
-int do_unaligned_access(unsigned long addr, struct pt_regs *regs)
-{
- unsigned long inst;
- int ret = -EFAULT;
- mm_segment_t seg;
-
- inst = get_inst(regs->ipc);
-
- DEBUG((unalign_access_debug > 0), 1,
- "Faulting addr: 0x%08lx, pc: 0x%08lx [inst: 0x%08lx ]\n", addr,
- regs->ipc, inst);
-
- seg = force_uaccess_begin();
- if (inst & NDS32_16BIT_INSTRUCTION)
- ret = do_16((inst >> 16) & 0xffff, regs);
- else
- ret = do_32(inst, regs);
- force_uaccess_end(seg);
-
- return ret;
-}
-
-#ifdef CONFIG_PROC_FS
-
-static struct ctl_table alignment_tbl[3] = {
- {
- .procname = "enable",
- .data = &unalign_access_mode,
- .maxlen = sizeof(unalign_access_mode),
- .mode = 0666,
- .proc_handler = &proc_dointvec
- }
- ,
- {
- .procname = "debug_info",
- .data = &unalign_access_debug,
- .maxlen = sizeof(unalign_access_debug),
- .mode = 0644,
- .proc_handler = &proc_dointvec
- }
- ,
- {}
-};
-
-static struct ctl_table nds32_sysctl_table[2] = {
- {
- .procname = "unaligned_access",
- .mode = 0555,
- .child = alignment_tbl},
- {}
-};
-
-static struct ctl_path nds32_path[2] = {
- {.procname = "nds32"},
- {}
-};
-
-/*
- * Initialize nds32 alignment-correction interface
- */
-static int __init nds32_sysctl_init(void)
-{
- register_sysctl_paths(nds32_path, nds32_sysctl_table);
- return 0;
-}
-
-__initcall(nds32_sysctl_init);
-#endif /* CONFIG_PROC_FS */
diff --git a/arch/nds32/mm/cacheflush.c b/arch/nds32/mm/cacheflush.c
deleted file mode 100644
index 07aac65d1cab..000000000000
--- a/arch/nds32/mm/cacheflush.c
+++ /dev/null
@@ -1,338 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <linux/mm.h>
-#include <linux/sched.h>
-#include <linux/fs.h>
-#include <linux/pagemap.h>
-#include <linux/module.h>
-#include <asm/cacheflush.h>
-#include <asm/proc-fns.h>
-#include <asm/shmparam.h>
-#include <asm/cache_info.h>
-
-extern struct cache_info L1_cache_info[2];
-
-void flush_icache_range(unsigned long start, unsigned long end)
-{
- unsigned long line_size, flags;
- line_size = L1_cache_info[DCACHE].line_size;
- start = start & ~(line_size - 1);
- end = (end + line_size - 1) & ~(line_size - 1);
- local_irq_save(flags);
- cpu_cache_wbinval_range(start, end, 1);
- local_irq_restore(flags);
-}
-EXPORT_SYMBOL(flush_icache_range);
-
-void flush_icache_page(struct vm_area_struct *vma, struct page *page)
-{
- unsigned long flags;
- unsigned long kaddr;
- local_irq_save(flags);
- kaddr = (unsigned long)kmap_atomic(page);
- cpu_cache_wbinval_page(kaddr, vma->vm_flags & VM_EXEC);
- kunmap_atomic((void *)kaddr);
- local_irq_restore(flags);
-}
-
-void flush_icache_user_page(struct vm_area_struct *vma, struct page *page,
- unsigned long addr, int len)
-{
- unsigned long kaddr;
- kaddr = (unsigned long)kmap_atomic(page) + (addr & ~PAGE_MASK);
- flush_icache_range(kaddr, kaddr + len);
- kunmap_atomic((void *)kaddr);
-}
-
-void update_mmu_cache(struct vm_area_struct *vma, unsigned long addr,
- pte_t * pte)
-{
- struct page *page;
- unsigned long pfn = pte_pfn(*pte);
- unsigned long flags;
-
- if (!pfn_valid(pfn))
- return;
-
- if (vma->vm_mm == current->active_mm) {
- local_irq_save(flags);
- __nds32__mtsr_dsb(addr, NDS32_SR_TLB_VPN);
- __nds32__tlbop_rwr(*pte);
- __nds32__isb();
- local_irq_restore(flags);
- }
- page = pfn_to_page(pfn);
-
- if ((test_and_clear_bit(PG_dcache_dirty, &page->flags)) ||
- (vma->vm_flags & VM_EXEC)) {
- unsigned long kaddr;
- local_irq_save(flags);
- kaddr = (unsigned long)kmap_atomic(page);
- cpu_cache_wbinval_page(kaddr, vma->vm_flags & VM_EXEC);
- kunmap_atomic((void *)kaddr);
- local_irq_restore(flags);
- }
-}
-#ifdef CONFIG_CPU_CACHE_ALIASING
-extern pte_t va_present(struct mm_struct *mm, unsigned long addr);
-
-static inline unsigned long aliasing(unsigned long addr, unsigned long page)
-{
- return ((addr & PAGE_MASK) ^ page) & (SHMLBA - 1);
-}
-
-static inline unsigned long kremap0(unsigned long uaddr, unsigned long pa)
-{
- unsigned long kaddr, pte;
-
-#define BASE_ADDR0 0xffffc000
- kaddr = BASE_ADDR0 | (uaddr & L1_cache_info[DCACHE].aliasing_mask);
- pte = (pa | PAGE_KERNEL);
- __nds32__mtsr_dsb(kaddr, NDS32_SR_TLB_VPN);
- __nds32__tlbop_rwlk(pte);
- __nds32__isb();
- return kaddr;
-}
-
-static inline void kunmap01(unsigned long kaddr)
-{
- __nds32__tlbop_unlk(kaddr);
- __nds32__tlbop_inv(kaddr);
- __nds32__isb();
-}
-
-static inline unsigned long kremap1(unsigned long uaddr, unsigned long pa)
-{
- unsigned long kaddr, pte;
-
-#define BASE_ADDR1 0xffff8000
- kaddr = BASE_ADDR1 | (uaddr & L1_cache_info[DCACHE].aliasing_mask);
- pte = (pa | PAGE_KERNEL);
- __nds32__mtsr_dsb(kaddr, NDS32_SR_TLB_VPN);
- __nds32__tlbop_rwlk(pte);
- __nds32__isb();
- return kaddr;
-}
-
-void flush_cache_mm(struct mm_struct *mm)
-{
- unsigned long flags;
-
- local_irq_save(flags);
- cpu_dcache_wbinval_all();
- cpu_icache_inval_all();
- local_irq_restore(flags);
-}
-
-void flush_cache_dup_mm(struct mm_struct *mm)
-{
-}
-
-void flush_cache_range(struct vm_area_struct *vma,
- unsigned long start, unsigned long end)
-{
- unsigned long flags;
-
- if ((end - start) > 8 * PAGE_SIZE) {
- cpu_dcache_wbinval_all();
- if (vma->vm_flags & VM_EXEC)
- cpu_icache_inval_all();
- return;
- }
- local_irq_save(flags);
- while (start < end) {
- if (va_present(vma->vm_mm, start))
- cpu_cache_wbinval_page(start, vma->vm_flags & VM_EXEC);
- start += PAGE_SIZE;
- }
- local_irq_restore(flags);
- return;
-}
-
-void flush_cache_page(struct vm_area_struct *vma,
- unsigned long addr, unsigned long pfn)
-{
- unsigned long vto, flags;
-
- local_irq_save(flags);
- vto = kremap0(addr, pfn << PAGE_SHIFT);
- cpu_cache_wbinval_page(vto, vma->vm_flags & VM_EXEC);
- kunmap01(vto);
- local_irq_restore(flags);
-}
-
-void flush_cache_vmap(unsigned long start, unsigned long end)
-{
- cpu_dcache_wbinval_all();
- cpu_icache_inval_all();
-}
-
-void flush_cache_vunmap(unsigned long start, unsigned long end)
-{
- cpu_dcache_wbinval_all();
- cpu_icache_inval_all();
-}
-
-void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
- struct page *to)
-{
- cpu_dcache_wbinval_page((unsigned long)vaddr);
- cpu_icache_inval_page((unsigned long)vaddr);
- copy_page(vto, vfrom);
- cpu_dcache_wbinval_page((unsigned long)vto);
- cpu_icache_inval_page((unsigned long)vto);
-}
-
-void clear_user_page(void *addr, unsigned long vaddr, struct page *page)
-{
- cpu_dcache_wbinval_page((unsigned long)vaddr);
- cpu_icache_inval_page((unsigned long)vaddr);
- clear_page(addr);
- cpu_dcache_wbinval_page((unsigned long)addr);
- cpu_icache_inval_page((unsigned long)addr);
-}
-
-void copy_user_highpage(struct page *to, struct page *from,
- unsigned long vaddr, struct vm_area_struct *vma)
-{
- unsigned long vto, vfrom, flags, kto, kfrom, pfrom, pto;
- kto = ((unsigned long)page_address(to) & PAGE_MASK);
- kfrom = ((unsigned long)page_address(from) & PAGE_MASK);
- pto = page_to_phys(to);
- pfrom = page_to_phys(from);
-
- local_irq_save(flags);
- if (aliasing(vaddr, (unsigned long)kfrom))
- cpu_dcache_wb_page((unsigned long)kfrom);
- vto = kremap0(vaddr, pto);
- vfrom = kremap1(vaddr, pfrom);
- copy_page((void *)vto, (void *)vfrom);
- kunmap01(vfrom);
- kunmap01(vto);
- local_irq_restore(flags);
-}
-
-EXPORT_SYMBOL(copy_user_highpage);
-
-void clear_user_highpage(struct page *page, unsigned long vaddr)
-{
- unsigned long vto, flags, kto;
-
- kto = ((unsigned long)page_address(page) & PAGE_MASK);
-
- local_irq_save(flags);
- if (aliasing(kto, vaddr) && kto != 0) {
- cpu_dcache_inval_page(kto);
- cpu_icache_inval_page(kto);
- }
- vto = kremap0(vaddr, page_to_phys(page));
- clear_page((void *)vto);
- kunmap01(vto);
- local_irq_restore(flags);
-}
-
-EXPORT_SYMBOL(clear_user_highpage);
-
-void flush_dcache_page(struct page *page)
-{
- struct address_space *mapping;
-
- mapping = page_mapping_file(page);
- if (mapping && !mapping_mapped(mapping))
- set_bit(PG_dcache_dirty, &page->flags);
- else {
- unsigned long kaddr, flags;
-
- kaddr = (unsigned long)page_address(page);
- local_irq_save(flags);
- cpu_dcache_wbinval_page(kaddr);
- if (mapping) {
- unsigned long vaddr, kto;
-
- vaddr = page->index << PAGE_SHIFT;
- if (aliasing(vaddr, kaddr)) {
- kto = kremap0(vaddr, page_to_phys(page));
- cpu_dcache_wbinval_page(kto);
- kunmap01(kto);
- }
- }
- local_irq_restore(flags);
- }
-}
-EXPORT_SYMBOL(flush_dcache_page);
-
-void copy_to_user_page(struct vm_area_struct *vma, struct page *page,
- unsigned long vaddr, void *dst, void *src, int len)
-{
- unsigned long line_size, start, end, vto, flags;
-
- local_irq_save(flags);
- vto = kremap0(vaddr, page_to_phys(page));
- dst = (void *)(vto | (vaddr & (PAGE_SIZE - 1)));
- memcpy(dst, src, len);
- if (vma->vm_flags & VM_EXEC) {
- line_size = L1_cache_info[DCACHE].line_size;
- start = (unsigned long)dst & ~(line_size - 1);
- end =
- ((unsigned long)dst + len + line_size - 1) & ~(line_size -
- 1);
- cpu_cache_wbinval_range(start, end, 1);
- }
- kunmap01(vto);
- local_irq_restore(flags);
-}
-
-void copy_from_user_page(struct vm_area_struct *vma, struct page *page,
- unsigned long vaddr, void *dst, void *src, int len)
-{
- unsigned long vto, flags;
-
- local_irq_save(flags);
- vto = kremap0(vaddr, page_to_phys(page));
- src = (void *)(vto | (vaddr & (PAGE_SIZE - 1)));
- memcpy(dst, src, len);
- kunmap01(vto);
- local_irq_restore(flags);
-}
-
-void flush_anon_page(struct vm_area_struct *vma,
- struct page *page, unsigned long vaddr)
-{
- unsigned long kaddr, flags, ktmp;
- if (!PageAnon(page))
- return;
-
- if (vma->vm_mm != current->active_mm)
- return;
-
- local_irq_save(flags);
- if (vma->vm_flags & VM_EXEC)
- cpu_icache_inval_page(vaddr & PAGE_MASK);
- kaddr = (unsigned long)page_address(page);
- if (aliasing(vaddr, kaddr)) {
- ktmp = kremap0(vaddr, page_to_phys(page));
- cpu_dcache_wbinval_page(ktmp);
- kunmap01(ktmp);
- }
- local_irq_restore(flags);
-}
-
-void flush_kernel_vmap_range(void *addr, int size)
-{
- unsigned long flags;
- local_irq_save(flags);
- cpu_dcache_wb_range((unsigned long)addr, (unsigned long)addr + size);
- local_irq_restore(flags);
-}
-EXPORT_SYMBOL(flush_kernel_vmap_range);
-
-void invalidate_kernel_vmap_range(void *addr, int size)
-{
- unsigned long flags;
- local_irq_save(flags);
- cpu_dcache_inval_range((unsigned long)addr, (unsigned long)addr + size);
- local_irq_restore(flags);
-}
-EXPORT_SYMBOL(invalidate_kernel_vmap_range);
-#endif
diff --git a/arch/nds32/mm/extable.c b/arch/nds32/mm/extable.c
deleted file mode 100644
index db7f0a7c8966..000000000000
--- a/arch/nds32/mm/extable.c
+++ /dev/null
@@ -1,16 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <linux/extable.h>
-#include <linux/uaccess.h>
-
-int fixup_exception(struct pt_regs *regs)
-{
- const struct exception_table_entry *fixup;
-
- fixup = search_exception_tables(instruction_pointer(regs));
- if (fixup)
- regs->ipc = fixup->fixup;
-
- return fixup != NULL;
-}
diff --git a/arch/nds32/mm/fault.c b/arch/nds32/mm/fault.c
deleted file mode 100644
index 636977a1c8b9..000000000000
--- a/arch/nds32/mm/fault.c
+++ /dev/null
@@ -1,396 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <linux/extable.h>
-#include <linux/module.h>
-#include <linux/signal.h>
-#include <linux/ptrace.h>
-#include <linux/mm.h>
-#include <linux/init.h>
-#include <linux/hardirq.h>
-#include <linux/uaccess.h>
-#include <linux/perf_event.h>
-
-#include <asm/tlbflush.h>
-
-extern void __noreturn die(const char *str, struct pt_regs *regs, long err);
-
-/*
- * This is useful to dump out the page tables associated with
- * 'addr' in mm 'mm'.
- */
-void show_pte(struct mm_struct *mm, unsigned long addr)
-{
- pgd_t *pgd;
- if (!mm)
- mm = &init_mm;
-
- pr_alert("pgd = %p\n", mm->pgd);
- pgd = pgd_offset(mm, addr);
- pr_alert("[%08lx] *pgd=%08lx", addr, pgd_val(*pgd));
-
- do {
- p4d_t *p4d;
- pud_t *pud;
- pmd_t *pmd;
-
- if (pgd_none(*pgd))
- break;
-
- if (pgd_bad(*pgd)) {
- pr_alert("(bad)");
- break;
- }
-
- p4d = p4d_offset(pgd, addr);
- pud = pud_offset(p4d, addr);
- pmd = pmd_offset(pud, addr);
-#if PTRS_PER_PMD != 1
- pr_alert(", *pmd=%08lx", pmd_val(*pmd));
-#endif
-
- if (pmd_none(*pmd))
- break;
-
- if (pmd_bad(*pmd)) {
- pr_alert("(bad)");
- break;
- }
-
- if (IS_ENABLED(CONFIG_HIGHMEM))
- {
- pte_t *pte;
- /* We must not map this if we have highmem enabled */
- pte = pte_offset_map(pmd, addr);
- pr_alert(", *pte=%08lx", pte_val(*pte));
- pte_unmap(pte);
- }
- } while (0);
-
- pr_alert("\n");
-}
-
-void do_page_fault(unsigned long entry, unsigned long addr,
- unsigned int error_code, struct pt_regs *regs)
-{
- struct task_struct *tsk;
- struct mm_struct *mm;
- struct vm_area_struct *vma;
- int si_code;
- vm_fault_t fault;
- unsigned int mask = VM_ACCESS_FLAGS;
- unsigned int flags = FAULT_FLAG_DEFAULT;
-
- error_code = error_code & (ITYPE_mskINST | ITYPE_mskETYPE);
- tsk = current;
- mm = tsk->mm;
- si_code = SEGV_MAPERR;
- /*
- * We fault-in kernel-space virtual memory on-demand. The
- * 'reference' page table is init_mm.pgd.
- *
- * NOTE! We MUST NOT take any locks for this case. We may
- * be in an interrupt or a critical region, and should
- * only copy the information from the master page table,
- * nothing more.
- */
- if (addr >= TASK_SIZE) {
- if (user_mode(regs))
- goto bad_area_nosemaphore;
-
- if (addr >= TASK_SIZE && addr < VMALLOC_END
- && (entry == ENTRY_PTE_NOT_PRESENT))
- goto vmalloc_fault;
- else
- goto no_context;
- }
-
- /* Send a signal to the task for handling the unalignment access. */
- if (entry == ENTRY_GENERAL_EXCPETION
- && error_code == ETYPE_ALIGNMENT_CHECK) {
- if (user_mode(regs))
- goto bad_area_nosemaphore;
- else
- goto no_context;
- }
-
- /*
- * If we're in an interrupt or have no user
- * context, we must not take the fault..
- */
- if (unlikely(faulthandler_disabled() || !mm))
- goto no_context;
-
- perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, regs, addr);
-
- /*
- * As per x86, we may deadlock here. However, since the kernel only
- * validly references user space from well defined areas of the code,
- * we can bug out early if this is from code which shouldn't.
- */
- if (unlikely(!mmap_read_trylock(mm))) {
- if (!user_mode(regs) &&
- !search_exception_tables(instruction_pointer(regs)))
- goto no_context;
-retry:
- mmap_read_lock(mm);
- } else {
- /*
- * The above down_read_trylock() might have succeeded in which
- * case, we'll have missed the might_sleep() from down_read().
- */
- might_sleep();
- if (IS_ENABLED(CONFIG_DEBUG_VM)) {
- if (!user_mode(regs) &&
- !search_exception_tables(instruction_pointer(regs)))
- goto no_context;
- }
- }
-
- vma = find_vma(mm, addr);
-
- if (unlikely(!vma))
- goto bad_area;
-
- if (vma->vm_start <= addr)
- goto good_area;
-
- if (unlikely(!(vma->vm_flags & VM_GROWSDOWN)))
- goto bad_area;
-
- if (unlikely(expand_stack(vma, addr)))
- goto bad_area;
-
- /*
- * Ok, we have a good vm_area for this memory access, so
- * we can handle it..
- */
-
-good_area:
- si_code = SEGV_ACCERR;
-
- /* first do some preliminary protection checks */
- if (entry == ENTRY_PTE_NOT_PRESENT) {
- if (error_code & ITYPE_mskINST)
- mask = VM_EXEC;
- else {
- mask = VM_READ | VM_WRITE;
- }
- } else if (entry == ENTRY_TLB_MISC) {
- switch (error_code & ITYPE_mskETYPE) {
- case RD_PROT:
- mask = VM_READ;
- break;
- case WRT_PROT:
- mask = VM_WRITE;
- flags |= FAULT_FLAG_WRITE;
- break;
- case NOEXEC:
- mask = VM_EXEC;
- break;
- case PAGE_MODIFY:
- mask = VM_WRITE;
- flags |= FAULT_FLAG_WRITE;
- break;
- case ACC_BIT:
- BUG();
- default:
- break;
- }
-
- }
- if (!(vma->vm_flags & mask))
- goto bad_area;
-
- /*
- * If for any reason at all we couldn't handle the fault,
- * make sure we exit gracefully rather than endlessly redo
- * the fault.
- */
-
- fault = handle_mm_fault(vma, addr, flags, regs);
-
- /*
- * If we need to retry but a fatal signal is pending, handle the
- * signal first. We do not need to release the mmap_lock because it
- * would already be released in __lock_page_or_retry in mm/filemap.c.
- */
- if (fault_signal_pending(fault, regs)) {
- if (!user_mode(regs))
- goto no_context;
- return;
- }
-
- if (unlikely(fault & VM_FAULT_ERROR)) {
- if (fault & VM_FAULT_OOM)
- goto out_of_memory;
- else if (fault & VM_FAULT_SIGBUS)
- goto do_sigbus;
- else
- goto bad_area;
- }
-
- if (fault & VM_FAULT_RETRY) {
- flags |= FAULT_FLAG_TRIED;
-
- /* No need to mmap_read_unlock(mm) as we would
- * have already released it in __lock_page_or_retry
- * in mm/filemap.c.
- */
- goto retry;
- }
-
- mmap_read_unlock(mm);
- return;
-
- /*
- * Something tried to access memory that isn't in our memory map..
- * Fix it, but check if it's kernel or user first..
- */
-bad_area:
- mmap_read_unlock(mm);
-
-bad_area_nosemaphore:
-
- /* User mode accesses just cause a SIGSEGV */
-
- if (user_mode(regs)) {
- tsk->thread.address = addr;
- tsk->thread.error_code = error_code;
- tsk->thread.trap_no = entry;
- force_sig_fault(SIGSEGV, si_code, (void __user *)addr);
- return;
- }
-
-no_context:
-
- /* Are we prepared to handle this kernel fault?
- *
- * (The kernel has valid exception-points in the source
- * when it acesses user-memory. When it fails in one
- * of those points, we find it in a table and do a jump
- * to some fixup code that loads an appropriate error
- * code)
- */
-
- {
- const struct exception_table_entry *entry;
-
- if ((entry =
- search_exception_tables(instruction_pointer(regs))) !=
- NULL) {
- /* Adjust the instruction pointer in the stackframe */
- instruction_pointer(regs) = entry->fixup;
- return;
- }
- }
-
- /*
- * Oops. The kernel tried to access some bad page. We'll have to
- * terminate things with extreme prejudice.
- */
-
- bust_spinlocks(1);
- pr_alert("Unable to handle kernel %s at virtual address %08lx\n",
- (addr < PAGE_SIZE) ? "NULL pointer dereference" :
- "paging request", addr);
-
- show_pte(mm, addr);
- die("Oops", regs, error_code);
-
- /*
- * We ran out of memory, or some other thing happened to us that made
- * us unable to handle the page fault gracefully.
- */
-
-out_of_memory:
- mmap_read_unlock(mm);
- if (!user_mode(regs))
- goto no_context;
- pagefault_out_of_memory();
- return;
-
-do_sigbus:
- mmap_read_unlock(mm);
-
- /* Kernel mode? Handle exceptions or die */
- if (!user_mode(regs))
- goto no_context;
-
- /*
- * Send a sigbus
- */
- tsk->thread.address = addr;
- tsk->thread.error_code = error_code;
- tsk->thread.trap_no = entry;
- force_sig_fault(SIGBUS, BUS_ADRERR, (void __user *)addr);
-
- return;
-
-vmalloc_fault:
- {
- /*
- * Synchronize this task's top level page-table
- * with the 'reference' page table.
- *
- * Use current_pgd instead of tsk->active_mm->pgd
- * since the latter might be unavailable if this
- * code is executed in a misfortunately run irq
- * (like inside schedule() between switch_mm and
- * switch_to...).
- */
-
- unsigned int index = pgd_index(addr);
- pgd_t *pgd, *pgd_k;
- p4d_t *p4d, *p4d_k;
- pud_t *pud, *pud_k;
- pmd_t *pmd, *pmd_k;
- pte_t *pte_k;
-
- pgd = (pgd_t *) __va(__nds32__mfsr(NDS32_SR_L1_PPTB)) + index;
- pgd_k = init_mm.pgd + index;
-
- if (!pgd_present(*pgd_k))
- goto no_context;
-
- p4d = p4d_offset(pgd, addr);
- p4d_k = p4d_offset(pgd_k, addr);
- if (!p4d_present(*p4d_k))
- goto no_context;
-
- pud = pud_offset(p4d, addr);
- pud_k = pud_offset(p4d_k, addr);
- if (!pud_present(*pud_k))
- goto no_context;
-
- pmd = pmd_offset(pud, addr);
- pmd_k = pmd_offset(pud_k, addr);
- if (!pmd_present(*pmd_k))
- goto no_context;
-
- if (!pmd_present(*pmd))
- set_pmd(pmd, *pmd_k);
- else
- BUG_ON(pmd_page(*pmd) != pmd_page(*pmd_k));
-
- /*
- * Since the vmalloc area is global, we don't
- * need to copy individual PTE's, it is enough to
- * copy the pgd pointer into the pte page of the
- * root task. If that is there, we'll find our pte if
- * it exists.
- */
-
- /* Make sure the actual PTE exists as well to
- * catch kernel vmalloc-area accesses to non-mapped
- * addres. If we don't do this, this will just
- * silently loop forever.
- */
-
- pte_k = pte_offset_kernel(pmd_k, addr);
- if (!pte_present(*pte_k))
- goto no_context;
-
- return;
- }
-}
diff --git a/arch/nds32/mm/init.c b/arch/nds32/mm/init.c
deleted file mode 100644
index f63f839738c4..000000000000
--- a/arch/nds32/mm/init.c
+++ /dev/null
@@ -1,263 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 1995-2005 Russell King
-// Copyright (C) 2012 ARM Ltd.
-// Copyright (C) 2013-2017 Andes Technology Corporation
-
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/swap.h>
-#include <linux/init.h>
-#include <linux/memblock.h>
-#include <linux/mman.h>
-#include <linux/nodemask.h>
-#include <linux/initrd.h>
-#include <linux/highmem.h>
-
-#include <asm/sections.h>
-#include <asm/setup.h>
-#include <asm/tlb.h>
-#include <asm/page.h>
-
-DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
-DEFINE_SPINLOCK(anon_alias_lock);
-extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
-
-/*
- * empty_zero_page is a special page that is used for
- * zero-initialized data and COW.
- */
-struct page *empty_zero_page;
-EXPORT_SYMBOL(empty_zero_page);
-
-static void __init zone_sizes_init(void)
-{
- unsigned long max_zone_pfn[MAX_NR_ZONES] = { 0 };
-
- max_zone_pfn[ZONE_NORMAL] = max_low_pfn;
-#ifdef CONFIG_HIGHMEM
- max_zone_pfn[ZONE_HIGHMEM] = max_pfn;
-#endif
- free_area_init(max_zone_pfn);
-
-}
-
-/*
- * Map all physical memory under high_memory into kernel's address space.
- *
- * This is explicitly coded for two-level page tables, so if you need
- * something else then this needs to change.
- */
-static void __init map_ram(void)
-{
- unsigned long v, p, e;
- pgd_t *pge;
- p4d_t *p4e;
- pud_t *pue;
- pmd_t *pme;
- pte_t *pte;
- /* These mark extents of read-only kernel pages...
- * ...from vmlinux.lds.S
- */
-
- p = (u32) memblock_start_of_DRAM() & PAGE_MASK;
- e = min((u32) memblock_end_of_DRAM(), (u32) __pa(high_memory));
-
- v = (u32) __va(p);
- pge = pgd_offset_k(v);
-
- while (p < e) {
- int j;
- p4e = p4d_offset(pge, v);
- pue = pud_offset(p4e, v);
- pme = pmd_offset(pue, v);
-
- if ((u32) pue != (u32) pge || (u32) pme != (u32) pge) {
- panic("%s: Kernel hardcoded for "
- "two-level page tables", __func__);
- }
-
- /* Alloc one page for holding PTE's... */
- pte = memblock_alloc(PAGE_SIZE, PAGE_SIZE);
- if (!pte)
- panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
- __func__, PAGE_SIZE, PAGE_SIZE);
- set_pmd(pme, __pmd(__pa(pte) + _PAGE_KERNEL_TABLE));
-
- /* Fill the newly allocated page with PTE'S */
- for (j = 0; p < e && j < PTRS_PER_PTE;
- v += PAGE_SIZE, p += PAGE_SIZE, j++, pte++) {
- /* Create mapping between p and v. */
- /* TODO: more fine grant for page access permission */
- set_pte(pte, __pte(p + pgprot_val(PAGE_KERNEL)));
- }
-
- pge++;
- }
-}
-static pmd_t *fixmap_pmd_p;
-static void __init fixedrange_init(void)
-{
- unsigned long vaddr;
- pmd_t *pmd;
-#ifdef CONFIG_HIGHMEM
- pte_t *pte;
-#endif /* CONFIG_HIGHMEM */
-
- /*
- * Fixed mappings:
- */
- vaddr = __fix_to_virt(__end_of_fixed_addresses - 1);
- pmd = pmd_off_k(vaddr);
- fixmap_pmd_p = memblock_alloc(PAGE_SIZE, PAGE_SIZE);
- if (!fixmap_pmd_p)
- panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
- __func__, PAGE_SIZE, PAGE_SIZE);
- set_pmd(pmd, __pmd(__pa(fixmap_pmd_p) + _PAGE_KERNEL_TABLE));
-
-#ifdef CONFIG_HIGHMEM
- /*
- * Permanent kmaps:
- */
- vaddr = PKMAP_BASE;
-
- pmd = pmd_off_k(vaddr);
- pte = memblock_alloc(PAGE_SIZE, PAGE_SIZE);
- if (!pte)
- panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
- __func__, PAGE_SIZE, PAGE_SIZE);
- set_pmd(pmd, __pmd(__pa(pte) + _PAGE_KERNEL_TABLE));
- pkmap_page_table = pte;
-#endif /* CONFIG_HIGHMEM */
-}
-
-/*
- * paging_init() sets up the page tables, initialises the zone memory
- * maps, and sets up the zero page, bad page and bad page tables.
- */
-void __init paging_init(void)
-{
- int i;
- void *zero_page;
-
- pr_info("Setting up paging and PTEs.\n");
- /* clear out the init_mm.pgd that will contain the kernel's mappings */
- for (i = 0; i < PTRS_PER_PGD; i++)
- swapper_pg_dir[i] = __pgd(1);
-
- map_ram();
-
- fixedrange_init();
-
- /* allocate space for empty_zero_page */
- zero_page = memblock_alloc(PAGE_SIZE, PAGE_SIZE);
- if (!zero_page)
- panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
- __func__, PAGE_SIZE, PAGE_SIZE);
- zone_sizes_init();
-
- empty_zero_page = virt_to_page(zero_page);
- flush_dcache_page(empty_zero_page);
-}
-
-static inline void __init free_highmem(void)
-{
-#ifdef CONFIG_HIGHMEM
- unsigned long pfn;
- for (pfn = PFN_UP(__pa(high_memory)); pfn < max_pfn; pfn++) {
- phys_addr_t paddr = (phys_addr_t) pfn << PAGE_SHIFT;
- if (!memblock_is_reserved(paddr))
- free_highmem_page(pfn_to_page(pfn));
- }
-#endif
-}
-
-static void __init set_max_mapnr_init(void)
-{
- max_mapnr = max_pfn;
-}
-
-/*
- * mem_init() marks the free areas in the mem_map and tells us how much
- * memory is free. This is done after various parts of the system have
- * claimed their memory after the kernel image.
- */
-void __init mem_init(void)
-{
- phys_addr_t memory_start = memblock_start_of_DRAM();
- BUG_ON(!mem_map);
- set_max_mapnr_init();
-
- free_highmem();
-
- /* this will put all low memory onto the freelists */
- memblock_free_all();
-
- pr_info("virtual kernel memory layout:\n"
- " fixmap : 0x%08lx - 0x%08lx (%4ld kB)\n"
-#ifdef CONFIG_HIGHMEM
- " pkmap : 0x%08lx - 0x%08lx (%4ld kB)\n"
-#endif
- " consist : 0x%08lx - 0x%08lx (%4ld MB)\n"
- " vmalloc : 0x%08lx - 0x%08lx (%4ld MB)\n"
- " lowmem : 0x%08lx - 0x%08lx (%4ld MB)\n"
- " .init : 0x%08lx - 0x%08lx (%4ld kB)\n"
- " .data : 0x%08lx - 0x%08lx (%4ld kB)\n"
- " .text : 0x%08lx - 0x%08lx (%4ld kB)\n",
- FIXADDR_START, FIXADDR_TOP, (FIXADDR_TOP - FIXADDR_START) >> 10,
-#ifdef CONFIG_HIGHMEM
- PKMAP_BASE, PKMAP_BASE + LAST_PKMAP * PAGE_SIZE,
- (LAST_PKMAP * PAGE_SIZE) >> 10,
-#endif
- CONSISTENT_BASE, CONSISTENT_END,
- ((CONSISTENT_END) - (CONSISTENT_BASE)) >> 20, VMALLOC_START,
- (unsigned long)VMALLOC_END, (VMALLOC_END - VMALLOC_START) >> 20,
- (unsigned long)__va(memory_start), (unsigned long)high_memory,
- ((unsigned long)high_memory -
- (unsigned long)__va(memory_start)) >> 20,
- (unsigned long)&__init_begin, (unsigned long)&__init_end,
- ((unsigned long)&__init_end -
- (unsigned long)&__init_begin) >> 10, (unsigned long)&_etext,
- (unsigned long)&_edata,
- ((unsigned long)&_edata - (unsigned long)&_etext) >> 10,
- (unsigned long)&_text, (unsigned long)&_etext,
- ((unsigned long)&_etext - (unsigned long)&_text) >> 10);
-
- /*
- * Check boundaries twice: Some fundamental inconsistencies can
- * be detected at build time already.
- */
-#ifdef CONFIG_HIGHMEM
- BUILD_BUG_ON(PKMAP_BASE + LAST_PKMAP * PAGE_SIZE > FIXADDR_START);
- BUILD_BUG_ON((CONSISTENT_END) > PKMAP_BASE);
-#endif
- BUILD_BUG_ON(VMALLOC_END > CONSISTENT_BASE);
- BUILD_BUG_ON(VMALLOC_START >= VMALLOC_END);
-
-#ifdef CONFIG_HIGHMEM
- BUG_ON(PKMAP_BASE + LAST_PKMAP * PAGE_SIZE > FIXADDR_START);
- BUG_ON(CONSISTENT_END > PKMAP_BASE);
-#endif
- BUG_ON(VMALLOC_END > CONSISTENT_BASE);
- BUG_ON(VMALLOC_START >= VMALLOC_END);
- BUG_ON((unsigned long)high_memory > VMALLOC_START);
-
- return;
-}
-
-void __set_fixmap(enum fixed_addresses idx,
- phys_addr_t phys, pgprot_t flags)
-{
- unsigned long addr = __fix_to_virt(idx);
- pte_t *pte;
-
- BUG_ON(idx <= FIX_HOLE || idx >= __end_of_fixed_addresses);
-
- pte = (pte_t *)&fixmap_pmd_p[pte_index(addr)];
-
- if (pgprot_val(flags)) {
- set_pte(pte, pfn_pte(phys >> PAGE_SHIFT, flags));
- } else {
- pte_clear(&init_mm, addr, pte);
- flush_tlb_kernel_range(addr, addr + PAGE_SIZE);
- }
-}
diff --git a/arch/nds32/mm/mm-nds32.c b/arch/nds32/mm/mm-nds32.c
deleted file mode 100644
index f2778f2b39f6..000000000000
--- a/arch/nds32/mm/mm-nds32.c
+++ /dev/null
@@ -1,96 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <linux/init_task.h>
-
-#define __HAVE_ARCH_PGD_FREE
-#include <asm/pgalloc.h>
-
-#define FIRST_KERNEL_PGD_NR (USER_PTRS_PER_PGD)
-
-/*
- * need to get a page for level 1
- */
-
-pgd_t *pgd_alloc(struct mm_struct *mm)
-{
- pgd_t *new_pgd, *init_pgd;
- int i;
-
- new_pgd = (pgd_t *) __get_free_pages(GFP_KERNEL, 0);
- if (!new_pgd)
- return NULL;
- for (i = 0; i < PTRS_PER_PGD; i++) {
- (*new_pgd) = 1;
- new_pgd++;
- }
- new_pgd -= PTRS_PER_PGD;
-
- init_pgd = pgd_offset_k(0);
-
- memcpy(new_pgd + FIRST_KERNEL_PGD_NR, init_pgd + FIRST_KERNEL_PGD_NR,
- (PTRS_PER_PGD - FIRST_KERNEL_PGD_NR) * sizeof(pgd_t));
-
- cpu_dcache_wb_range((unsigned long)new_pgd,
- (unsigned long)new_pgd +
- PTRS_PER_PGD * sizeof(pgd_t));
- inc_lruvec_page_state(virt_to_page((unsigned long *)new_pgd),
- NR_PAGETABLE);
-
- return new_pgd;
-}
-
-void pgd_free(struct mm_struct *mm, pgd_t * pgd)
-{
- pmd_t *pmd;
- struct page *pte;
-
- if (!pgd)
- return;
-
- pmd = (pmd_t *) pgd;
- if (pmd_none(*pmd))
- goto free;
- if (pmd_bad(*pmd)) {
- pmd_ERROR(*pmd);
- pmd_clear(pmd);
- goto free;
- }
-
- pte = pmd_page(*pmd);
- pmd_clear(pmd);
- dec_lruvec_page_state(virt_to_page((unsigned long *)pgd), NR_PAGETABLE);
- pte_free(mm, pte);
- mm_dec_nr_ptes(mm);
- pmd_free(mm, pmd);
-free:
- free_pages((unsigned long)pgd, 0);
-}
-
-/*
- * In order to soft-boot, we need to insert a 1:1 mapping in place of
- * the user-mode pages. This will then ensure that we have predictable
- * results when turning the mmu off
- */
-void setup_mm_for_reboot(char mode)
-{
- unsigned long pmdval;
- pgd_t *pgd;
- p4d_t *p4d;
- pud_t *pud;
- pmd_t *pmd;
- int i;
-
- if (current->mm && current->mm->pgd)
- pgd = current->mm->pgd;
- else
- pgd = init_mm.pgd;
-
- for (i = 0; i < USER_PTRS_PER_PGD; i++) {
- pmdval = (i << PGDIR_SHIFT);
- p4d = p4d_offset(pgd, i << PGDIR_SHIFT);
- pud = pud_offset(p4d, i << PGDIR_SHIFT);
- pmd = pmd_offset(pud + i, i << PGDIR_SHIFT);
- set_pmd(pmd, __pmd(pmdval));
- }
-}
diff --git a/arch/nds32/mm/mmap.c b/arch/nds32/mm/mmap.c
deleted file mode 100644
index 1bdf5e7d1b43..000000000000
--- a/arch/nds32/mm/mmap.c
+++ /dev/null
@@ -1,73 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <linux/sched.h>
-#include <linux/mman.h>
-#include <linux/shm.h>
-
-#define COLOUR_ALIGN(addr,pgoff) \
- ((((addr)+SHMLBA-1)&~(SHMLBA-1)) + \
- (((pgoff)<<PAGE_SHIFT) & (SHMLBA-1)))
-
-/*
- * We need to ensure that shared mappings are correctly aligned to
- * avoid aliasing issues with VIPT caches. We need to ensure that
- * a specific page of an object is always mapped at a multiple of
- * SHMLBA bytes.
- *
- * We unconditionally provide this function for all cases, however
- * in the VIVT case, we optimise out the alignment rules.
- */
-unsigned long
-arch_get_unmapped_area(struct file *filp, unsigned long addr,
- unsigned long len, unsigned long pgoff,
- unsigned long flags)
-{
- struct mm_struct *mm = current->mm;
- struct vm_area_struct *vma;
- int do_align = 0;
- struct vm_unmapped_area_info info;
- int aliasing = 0;
- if(IS_ENABLED(CONFIG_CPU_CACHE_ALIASING))
- aliasing = 1;
-
- /*
- * We only need to do colour alignment if either the I or D
- * caches alias.
- */
- if (aliasing)
- do_align = filp || (flags & MAP_SHARED);
-
- /*
- * We enforce the MAP_FIXED case.
- */
- if (flags & MAP_FIXED) {
- if (aliasing && flags & MAP_SHARED &&
- (addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1))
- return -EINVAL;
- return addr;
- }
-
- if (len > TASK_SIZE)
- return -ENOMEM;
-
- if (addr) {
- if (do_align)
- addr = COLOUR_ALIGN(addr, pgoff);
- else
- addr = PAGE_ALIGN(addr);
-
- vma = find_vma(mm, addr);
- if (TASK_SIZE - len >= addr &&
- (!vma || addr + len <= vm_start_gap(vma)))
- return addr;
- }
-
- info.flags = 0;
- info.length = len;
- info.low_limit = mm->mmap_base;
- info.high_limit = TASK_SIZE;
- info.align_mask = do_align ? (PAGE_MASK & (SHMLBA - 1)) : 0;
- info.align_offset = pgoff << PAGE_SHIFT;
- return vm_unmapped_area(&info);
-}
diff --git a/arch/nds32/mm/proc.c b/arch/nds32/mm/proc.c
deleted file mode 100644
index 848c845f5f33..000000000000
--- a/arch/nds32/mm/proc.c
+++ /dev/null
@@ -1,536 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <asm/nds32.h>
-#include <asm/tlbflush.h>
-#include <asm/cacheflush.h>
-#include <asm/l2_cache.h>
-#include <nds32_intrinsic.h>
-
-#include <asm/cache_info.h>
-extern struct cache_info L1_cache_info[2];
-
-int va_kernel_present(unsigned long addr)
-{
- pmd_t *pmd;
- pte_t *ptep, pte;
-
- pmd = pmd_off_k(addr);
- if (!pmd_none(*pmd)) {
- ptep = pte_offset_map(pmd, addr);
- pte = *ptep;
- if (pte_present(pte))
- return pte;
- }
- return 0;
-}
-
-pte_t va_present(struct mm_struct * mm, unsigned long addr)
-{
- pgd_t *pgd;
- p4d_t *p4d;
- pud_t *pud;
- pmd_t *pmd;
- pte_t *ptep, pte;
-
- pgd = pgd_offset(mm, addr);
- if (!pgd_none(*pgd)) {
- p4d = p4d_offset(pgd, addr);
- if (!p4d_none(*p4d)) {
- pud = pud_offset(p4d, addr);
- if (!pud_none(*pud)) {
- pmd = pmd_offset(pud, addr);
- if (!pmd_none(*pmd)) {
- ptep = pte_offset_map(pmd, addr);
- pte = *ptep;
- if (pte_present(pte))
- return pte;
- }
- }
- }
- }
- return 0;
-
-}
-
-int va_readable(struct pt_regs *regs, unsigned long addr)
-{
- struct mm_struct *mm = current->mm;
- pte_t pte;
- int ret = 0;
-
- if (user_mode(regs)) {
- /* user mode */
- pte = va_present(mm, addr);
- if (!pte && pte_read(pte))
- ret = 1;
- } else {
- /* superuser mode is always readable, so we can only
- * check it is present or not*/
- return (! !va_kernel_present(addr));
- }
- return ret;
-}
-
-int va_writable(struct pt_regs *regs, unsigned long addr)
-{
- struct mm_struct *mm = current->mm;
- pte_t pte;
- int ret = 0;
-
- if (user_mode(regs)) {
- /* user mode */
- pte = va_present(mm, addr);
- if (!pte && pte_write(pte))
- ret = 1;
- } else {
- /* superuser mode */
- pte = va_kernel_present(addr);
- if (!pte && pte_kernel_write(pte))
- ret = 1;
- }
- return ret;
-}
-
-/*
- * All
- */
-void cpu_icache_inval_all(void)
-{
- unsigned long end, line_size;
-
- line_size = L1_cache_info[ICACHE].line_size;
- end =
- line_size * L1_cache_info[ICACHE].ways * L1_cache_info[ICACHE].sets;
-
- do {
- end -= line_size;
- __asm__ volatile ("\n\tcctl %0, L1I_IX_INVAL"::"r" (end));
- end -= line_size;
- __asm__ volatile ("\n\tcctl %0, L1I_IX_INVAL"::"r" (end));
- end -= line_size;
- __asm__ volatile ("\n\tcctl %0, L1I_IX_INVAL"::"r" (end));
- end -= line_size;
- __asm__ volatile ("\n\tcctl %0, L1I_IX_INVAL"::"r" (end));
- } while (end > 0);
- __nds32__isb();
-}
-
-void cpu_dcache_inval_all(void)
-{
- __nds32__cctl_l1d_invalall();
-}
-
-#ifdef CONFIG_CACHE_L2
-void dcache_wb_all_level(void)
-{
- unsigned long flags, cmd;
- local_irq_save(flags);
- __nds32__cctl_l1d_wball_alvl();
- /* Section 1: Ensure the section 2 & 3 program code execution after */
- __nds32__cctlidx_read(NDS32_CCTL_L1D_IX_RWD,0);
-
- /* Section 2: Confirm the writeback all level is done in CPU and L2C */
- cmd = CCTL_CMD_L2_SYNC;
- L2_CMD_RDY();
- L2C_W_REG(L2_CCTL_CMD_OFF, cmd);
- L2_CMD_RDY();
-
- /* Section 3: Writeback whole L2 cache */
- cmd = CCTL_ALL_CMD | CCTL_CMD_L2_IX_WB;
- L2_CMD_RDY();
- L2C_W_REG(L2_CCTL_CMD_OFF, cmd);
- L2_CMD_RDY();
- __nds32__msync_all();
- local_irq_restore(flags);
-}
-EXPORT_SYMBOL(dcache_wb_all_level);
-#endif
-
-void cpu_dcache_wb_all(void)
-{
- __nds32__cctl_l1d_wball_one_lvl();
- __nds32__cctlidx_read(NDS32_CCTL_L1D_IX_RWD,0);
-}
-
-void cpu_dcache_wbinval_all(void)
-{
-#ifndef CONFIG_CPU_DCACHE_WRITETHROUGH
- unsigned long flags;
- local_irq_save(flags);
-#endif
- cpu_dcache_wb_all();
- cpu_dcache_inval_all();
-#ifndef CONFIG_CPU_DCACHE_WRITETHROUGH
- local_irq_restore(flags);
-#endif
-}
-
-/*
- * Page
- */
-void cpu_icache_inval_page(unsigned long start)
-{
- unsigned long line_size, end;
-
- line_size = L1_cache_info[ICACHE].line_size;
- end = start + PAGE_SIZE;
-
- do {
- end -= line_size;
- __asm__ volatile ("\n\tcctl %0, L1I_VA_INVAL"::"r" (end));
- end -= line_size;
- __asm__ volatile ("\n\tcctl %0, L1I_VA_INVAL"::"r" (end));
- end -= line_size;
- __asm__ volatile ("\n\tcctl %0, L1I_VA_INVAL"::"r" (end));
- end -= line_size;
- __asm__ volatile ("\n\tcctl %0, L1I_VA_INVAL"::"r" (end));
- } while (end != start);
- __nds32__isb();
-}
-
-void cpu_dcache_inval_page(unsigned long start)
-{
- unsigned long line_size, end;
-
- line_size = L1_cache_info[DCACHE].line_size;
- end = start + PAGE_SIZE;
-
- do {
- end -= line_size;
- __asm__ volatile ("\n\tcctl %0, L1D_VA_INVAL"::"r" (end));
- end -= line_size;
- __asm__ volatile ("\n\tcctl %0, L1D_VA_INVAL"::"r" (end));
- end -= line_size;
- __asm__ volatile ("\n\tcctl %0, L1D_VA_INVAL"::"r" (end));
- end -= line_size;
- __asm__ volatile ("\n\tcctl %0, L1D_VA_INVAL"::"r" (end));
- } while (end != start);
-}
-
-void cpu_dcache_wb_page(unsigned long start)
-{
-#ifndef CONFIG_CPU_DCACHE_WRITETHROUGH
- unsigned long line_size, end;
-
- line_size = L1_cache_info[DCACHE].line_size;
- end = start + PAGE_SIZE;
-
- do {
- end -= line_size;
- __asm__ volatile ("\n\tcctl %0, L1D_VA_WB"::"r" (end));
- end -= line_size;
- __asm__ volatile ("\n\tcctl %0, L1D_VA_WB"::"r" (end));
- end -= line_size;
- __asm__ volatile ("\n\tcctl %0, L1D_VA_WB"::"r" (end));
- end -= line_size;
- __asm__ volatile ("\n\tcctl %0, L1D_VA_WB"::"r" (end));
- } while (end != start);
- __nds32__cctlidx_read(NDS32_CCTL_L1D_IX_RWD,0);
-#endif
-}
-
-void cpu_dcache_wbinval_page(unsigned long start)
-{
- unsigned long line_size, end;
-
- line_size = L1_cache_info[DCACHE].line_size;
- end = start + PAGE_SIZE;
-
- do {
- end -= line_size;
-#ifndef CONFIG_CPU_DCACHE_WRITETHROUGH
- __asm__ volatile ("\n\tcctl %0, L1D_VA_WB"::"r" (end));
-#endif
- __asm__ volatile ("\n\tcctl %0, L1D_VA_INVAL"::"r" (end));
- end -= line_size;
-#ifndef CONFIG_CPU_DCACHE_WRITETHROUGH
- __asm__ volatile ("\n\tcctl %0, L1D_VA_WB"::"r" (end));
-#endif
- __asm__ volatile ("\n\tcctl %0, L1D_VA_INVAL"::"r" (end));
- end -= line_size;
-#ifndef CONFIG_CPU_DCACHE_WRITETHROUGH
- __asm__ volatile ("\n\tcctl %0, L1D_VA_WB"::"r" (end));
-#endif
- __asm__ volatile ("\n\tcctl %0, L1D_VA_INVAL"::"r" (end));
- end -= line_size;
-#ifndef CONFIG_CPU_DCACHE_WRITETHROUGH
- __asm__ volatile ("\n\tcctl %0, L1D_VA_WB"::"r" (end));
-#endif
- __asm__ volatile ("\n\tcctl %0, L1D_VA_INVAL"::"r" (end));
- } while (end != start);
- __nds32__cctlidx_read(NDS32_CCTL_L1D_IX_RWD,0);
-}
-
-void cpu_cache_wbinval_page(unsigned long page, int flushi)
-{
- cpu_dcache_wbinval_page(page);
- if (flushi)
- cpu_icache_inval_page(page);
-}
-
-/*
- * Range
- */
-void cpu_icache_inval_range(unsigned long start, unsigned long end)
-{
- unsigned long line_size;
-
- line_size = L1_cache_info[ICACHE].line_size;
-
- while (end > start) {
- __asm__ volatile ("\n\tcctl %0, L1I_VA_INVAL"::"r" (start));
- start += line_size;
- }
- __nds32__isb();
-}
-
-void cpu_dcache_inval_range(unsigned long start, unsigned long end)
-{
- unsigned long line_size;
-
- line_size = L1_cache_info[DCACHE].line_size;
-
- while (end > start) {
- __asm__ volatile ("\n\tcctl %0, L1D_VA_INVAL"::"r" (start));
- start += line_size;
- }
-}
-
-void cpu_dcache_wb_range(unsigned long start, unsigned long end)
-{
-#ifndef CONFIG_CPU_DCACHE_WRITETHROUGH
- unsigned long line_size;
-
- line_size = L1_cache_info[DCACHE].line_size;
-
- while (end > start) {
- __asm__ volatile ("\n\tcctl %0, L1D_VA_WB"::"r" (start));
- start += line_size;
- }
- __nds32__cctlidx_read(NDS32_CCTL_L1D_IX_RWD,0);
-#endif
-}
-
-void cpu_dcache_wbinval_range(unsigned long start, unsigned long end)
-{
- unsigned long line_size;
-
- line_size = L1_cache_info[DCACHE].line_size;
-
- while (end > start) {
-#ifndef CONFIG_CPU_DCACHE_WRITETHROUGH
- __asm__ volatile ("\n\tcctl %0, L1D_VA_WB"::"r" (start));
-#endif
- __asm__ volatile ("\n\tcctl %0, L1D_VA_INVAL"::"r" (start));
- start += line_size;
- }
- __nds32__cctlidx_read(NDS32_CCTL_L1D_IX_RWD,0);
-}
-
-void cpu_cache_wbinval_range(unsigned long start, unsigned long end, int flushi)
-{
- unsigned long line_size, align_start, align_end;
-
- line_size = L1_cache_info[DCACHE].line_size;
- align_start = start & ~(line_size - 1);
- align_end = (end + line_size - 1) & ~(line_size - 1);
- cpu_dcache_wbinval_range(align_start, align_end);
-
- if (flushi) {
- line_size = L1_cache_info[ICACHE].line_size;
- align_start = start & ~(line_size - 1);
- align_end = (end + line_size - 1) & ~(line_size - 1);
- cpu_icache_inval_range(align_start, align_end);
- }
-}
-
-void cpu_cache_wbinval_range_check(struct vm_area_struct *vma,
- unsigned long start, unsigned long end,
- bool flushi, bool wbd)
-{
- unsigned long line_size, t_start, t_end;
-
- if (!flushi && !wbd)
- return;
- line_size = L1_cache_info[DCACHE].line_size;
- start = start & ~(line_size - 1);
- end = (end + line_size - 1) & ~(line_size - 1);
-
- if ((end - start) > (8 * PAGE_SIZE)) {
- if (wbd)
- cpu_dcache_wbinval_all();
- if (flushi)
- cpu_icache_inval_all();
- return;
- }
-
- t_start = (start + PAGE_SIZE) & PAGE_MASK;
- t_end = ((end - 1) & PAGE_MASK);
-
- if ((start & PAGE_MASK) == t_end) {
- if (va_present(vma->vm_mm, start)) {
- if (wbd)
- cpu_dcache_wbinval_range(start, end);
- if (flushi)
- cpu_icache_inval_range(start, end);
- }
- return;
- }
-
- if (va_present(vma->vm_mm, start)) {
- if (wbd)
- cpu_dcache_wbinval_range(start, t_start);
- if (flushi)
- cpu_icache_inval_range(start, t_start);
- }
-
- if (va_present(vma->vm_mm, end - 1)) {
- if (wbd)
- cpu_dcache_wbinval_range(t_end, end);
- if (flushi)
- cpu_icache_inval_range(t_end, end);
- }
-
- while (t_start < t_end) {
- if (va_present(vma->vm_mm, t_start)) {
- if (wbd)
- cpu_dcache_wbinval_page(t_start);
- if (flushi)
- cpu_icache_inval_page(t_start);
- }
- t_start += PAGE_SIZE;
- }
-}
-
-#ifdef CONFIG_CACHE_L2
-static inline void cpu_l2cache_op(unsigned long start, unsigned long end, unsigned long op)
-{
- if (atl2c_base) {
- unsigned long p_start = __pa(start);
- unsigned long p_end = __pa(end);
- unsigned long cmd;
- unsigned long line_size;
- /* TODO Can Use PAGE Mode to optimize if range large than PAGE_SIZE */
- line_size = L2_CACHE_LINE_SIZE();
- p_start = p_start & (~(line_size - 1));
- p_end = (p_end + line_size - 1) & (~(line_size - 1));
- cmd =
- (p_start & ~(line_size - 1)) | op |
- CCTL_SINGLE_CMD;
- do {
- L2_CMD_RDY();
- L2C_W_REG(L2_CCTL_CMD_OFF, cmd);
- cmd += line_size;
- p_start += line_size;
- } while (p_end > p_start);
- cmd = CCTL_CMD_L2_SYNC;
- L2_CMD_RDY();
- L2C_W_REG(L2_CCTL_CMD_OFF, cmd);
- L2_CMD_RDY();
- }
-}
-#else
-#define cpu_l2cache_op(start,end,op) do { } while (0)
-#endif
-/*
- * DMA
- */
-void cpu_dma_wb_range(unsigned long start, unsigned long end)
-{
- unsigned long line_size;
- unsigned long flags;
- line_size = L1_cache_info[DCACHE].line_size;
- start = start & (~(line_size - 1));
- end = (end + line_size - 1) & (~(line_size - 1));
- if (unlikely(start == end))
- return;
-
- local_irq_save(flags);
- cpu_dcache_wb_range(start, end);
- cpu_l2cache_op(start, end, CCTL_CMD_L2_PA_WB);
- __nds32__msync_all();
- local_irq_restore(flags);
-}
-
-void cpu_dma_inval_range(unsigned long start, unsigned long end)
-{
- unsigned long line_size;
- unsigned long old_start = start;
- unsigned long old_end = end;
- unsigned long flags;
- line_size = L1_cache_info[DCACHE].line_size;
- start = start & (~(line_size - 1));
- end = (end + line_size - 1) & (~(line_size - 1));
- if (unlikely(start == end))
- return;
- local_irq_save(flags);
- if (start != old_start) {
- cpu_dcache_wbinval_range(start, start + line_size);
- cpu_l2cache_op(start, start + line_size, CCTL_CMD_L2_PA_WBINVAL);
- }
- if (end != old_end) {
- cpu_dcache_wbinval_range(end - line_size, end);
- cpu_l2cache_op(end - line_size, end, CCTL_CMD_L2_PA_WBINVAL);
- }
- cpu_dcache_inval_range(start, end);
- cpu_l2cache_op(start, end, CCTL_CMD_L2_PA_INVAL);
- __nds32__msync_all();
- local_irq_restore(flags);
-
-}
-
-void cpu_dma_wbinval_range(unsigned long start, unsigned long end)
-{
- unsigned long line_size;
- unsigned long flags;
- line_size = L1_cache_info[DCACHE].line_size;
- start = start & (~(line_size - 1));
- end = (end + line_size - 1) & (~(line_size - 1));
- if (unlikely(start == end))
- return;
-
- local_irq_save(flags);
- cpu_dcache_wbinval_range(start, end);
- cpu_l2cache_op(start, end, CCTL_CMD_L2_PA_WBINVAL);
- __nds32__msync_all();
- local_irq_restore(flags);
-}
-
-void cpu_proc_init(void)
-{
-}
-
-void cpu_proc_fin(void)
-{
-}
-
-void cpu_do_idle(void)
-{
- __nds32__standby_no_wake_grant();
-}
-
-void cpu_reset(unsigned long reset)
-{
- u32 tmp;
- GIE_DISABLE();
- tmp = __nds32__mfsr(NDS32_SR_CACHE_CTL);
- tmp &= ~(CACHE_CTL_mskIC_EN | CACHE_CTL_mskDC_EN);
- __nds32__mtsr_isb(tmp, NDS32_SR_CACHE_CTL);
- cpu_dcache_wbinval_all();
- cpu_icache_inval_all();
-
- __asm__ __volatile__("jr.toff %0\n\t"::"r"(reset));
-}
-
-void cpu_switch_mm(struct mm_struct *mm)
-{
- unsigned long cid;
- cid = __nds32__mfsr(NDS32_SR_TLB_MISC);
- cid = (cid & ~TLB_MISC_mskCID) | mm->context.id;
- __nds32__mtsr_dsb(cid, NDS32_SR_TLB_MISC);
- __nds32__mtsr_isb(__pa(mm->pgd), NDS32_SR_L1_PPTB);
-}
diff --git a/arch/nds32/mm/tlb.c b/arch/nds32/mm/tlb.c
deleted file mode 100644
index dd41f5e0712f..000000000000
--- a/arch/nds32/mm/tlb.c
+++ /dev/null
@@ -1,50 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <linux/spinlock_types.h>
-#include <linux/mm.h>
-#include <linux/sched.h>
-#include <asm/nds32.h>
-#include <nds32_intrinsic.h>
-
-unsigned int cpu_last_cid = { TLB_MISC_mskCID + (2 << TLB_MISC_offCID) };
-
-DEFINE_SPINLOCK(cid_lock);
-
-void local_flush_tlb_range(struct vm_area_struct *vma,
- unsigned long start, unsigned long end)
-{
- unsigned long flags, ocid, ncid;
-
- if ((end - start) > 0x400000) {
- __nds32__tlbop_flua();
- __nds32__isb();
- return;
- }
-
- spin_lock_irqsave(&cid_lock, flags);
- ocid = __nds32__mfsr(NDS32_SR_TLB_MISC);
- ncid = (ocid & ~TLB_MISC_mskCID) | vma->vm_mm->context.id;
- __nds32__mtsr_dsb(ncid, NDS32_SR_TLB_MISC);
- while (start < end) {
- __nds32__tlbop_inv(start);
- __nds32__isb();
- start += PAGE_SIZE;
- }
- __nds32__mtsr_dsb(ocid, NDS32_SR_TLB_MISC);
- spin_unlock_irqrestore(&cid_lock, flags);
-}
-
-void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long addr)
-{
- unsigned long flags, ocid, ncid;
-
- spin_lock_irqsave(&cid_lock, flags);
- ocid = __nds32__mfsr(NDS32_SR_TLB_MISC);
- ncid = (ocid & ~TLB_MISC_mskCID) | vma->vm_mm->context.id;
- __nds32__mtsr_dsb(ncid, NDS32_SR_TLB_MISC);
- __nds32__tlbop_inv(addr);
- __nds32__isb();
- __nds32__mtsr_dsb(ocid, NDS32_SR_TLB_MISC);
- spin_unlock_irqrestore(&cid_lock, flags);
-}
diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig
index cfb8ea0df3b1..ae95d06a4a8f 100644
--- a/drivers/clocksource/Kconfig
+++ b/drivers/clocksource/Kconfig
@@ -617,15 +617,6 @@ config CLKSRC_ST_LPC
Enable this option to use the Low Power controller timer
as clocksource.
-config ATCPIT100_TIMER
- bool "ATCPIT100 timer driver"
- depends on NDS32 || COMPILE_TEST
- depends on HAS_IOMEM
- select TIMER_OF
- default NDS32
- help
- This option enables support for the Andestech ATCPIT100 timers.
-
config RISCV_TIMER
bool "Timer for the RISC-V platform" if COMPILE_TEST
depends on GENERIC_SCHED_CLOCK && RISCV && RISCV_SBI
diff --git a/drivers/clocksource/timer-atcpit100.c b/drivers/clocksource/timer-atcpit100.c
deleted file mode 100644
index b4bd2f5b801d..000000000000
--- a/drivers/clocksource/timer-atcpit100.c
+++ /dev/null
@@ -1,266 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-/*
- * Andestech ATCPIT100 Timer Device Driver Implementation
- * Rick Chen, Andes Technology Corporation <rick@...estech.com>
- *
- */
-
-#include <linux/irq.h>
-#include <linux/clocksource.h>
-#include <linux/clockchips.h>
-#include <linux/interrupt.h>
-#include <linux/ioport.h>
-#include <linux/cpufreq.h>
-#include <linux/sched.h>
-#include <linux/sched_clock.h>
-#include <linux/of_address.h>
-#include <linux/of_irq.h>
-#include <linux/of_platform.h>
-#include "timer-of.h"
-#ifdef CONFIG_NDS32
-#include <asm/vdso_timer_info.h>
-#endif
-
-/*
- * Definition of register offsets
- */
-
-/* ID and Revision Register */
-#define ID_REV 0x0
-
-/* Configuration Register */
-#define CFG 0x10
-
-/* Interrupt Enable Register */
-#define INT_EN 0x14
-#define CH_INT_EN(c, i) ((1<<i)<<(4*c))
-#define CH0INT0EN 0x01
-
-/* Interrupt Status Register */
-#define INT_STA 0x18
-#define CH0INT0 0x01
-
-/* Channel Enable Register */
-#define CH_EN 0x1C
-#define CH0TMR0EN 0x1
-#define CH1TMR0EN 0x10
-
-/* Channel 0 , 1 Control Register */
-#define CH0_CTL (0x20)
-#define CH1_CTL (0x20 + 0x10)
-
-/* Channel clock source , bit 3 , 0:External clock , 1:APB clock */
-#define APB_CLK BIT(3)
-
-/* Channel mode , bit 0~2 */
-#define TMR_32 0x1
-#define TMR_16 0x2
-#define TMR_8 0x3
-
-/* Channel 0 , 1 Reload Register */
-#define CH0_REL (0x24)
-#define CH1_REL (0x24 + 0x10)
-
-/* Channel 0 , 1 Counter Register */
-#define CH0_CNT (0x28)
-#define CH1_CNT (0x28 + 0x10)
-
-#define TIMER_SYNC_TICKS 3
-
-static void atcpit100_ch1_tmr0_en(void __iomem *base)
-{
- writel(~0, base + CH1_REL);
- writel(APB_CLK|TMR_32, base + CH1_CTL);
-}
-
-static void atcpit100_ch0_tmr0_en(void __iomem *base)
-{
- writel(APB_CLK|TMR_32, base + CH0_CTL);
-}
-
-static void atcpit100_clkevt_time_setup(void __iomem *base, unsigned long delay)
-{
- writel(delay, base + CH0_CNT);
- writel(delay, base + CH0_REL);
-}
-
-static void atcpit100_timer_clear_interrupt(void __iomem *base)
-{
- u32 val;
-
- val = readl(base + INT_STA);
- writel(val | CH0INT0, base + INT_STA);
-}
-
-static void atcpit100_clocksource_start(void __iomem *base)
-{
- u32 val;
-
- val = readl(base + CH_EN);
- writel(val | CH1TMR0EN, base + CH_EN);
-}
-
-static void atcpit100_clkevt_time_start(void __iomem *base)
-{
- u32 val;
-
- val = readl(base + CH_EN);
- writel(val | CH0TMR0EN, base + CH_EN);
-}
-
-static void atcpit100_clkevt_time_stop(void __iomem *base)
-{
- u32 val;
-
- atcpit100_timer_clear_interrupt(base);
- val = readl(base + CH_EN);
- writel(val & ~CH0TMR0EN, base + CH_EN);
-}
-
-static int atcpit100_clkevt_next_event(unsigned long evt,
- struct clock_event_device *clkevt)
-{
- u32 val;
- struct timer_of *to = to_timer_of(clkevt);
-
- val = readl(timer_of_base(to) + CH_EN);
- writel(val & ~CH0TMR0EN, timer_of_base(to) + CH_EN);
- writel(evt, timer_of_base(to) + CH0_REL);
- writel(val | CH0TMR0EN, timer_of_base(to) + CH_EN);
-
- return 0;
-}
-
-static int atcpit100_clkevt_set_periodic(struct clock_event_device *evt)
-{
- struct timer_of *to = to_timer_of(evt);
-
- atcpit100_clkevt_time_setup(timer_of_base(to), timer_of_period(to));
- atcpit100_clkevt_time_start(timer_of_base(to));
-
- return 0;
-}
-static int atcpit100_clkevt_shutdown(struct clock_event_device *evt)
-{
- struct timer_of *to = to_timer_of(evt);
-
- atcpit100_clkevt_time_stop(timer_of_base(to));
-
- return 0;
-}
-static int atcpit100_clkevt_set_oneshot(struct clock_event_device *evt)
-{
- struct timer_of *to = to_timer_of(evt);
- u32 val;
-
- writel(~0x0, timer_of_base(to) + CH0_REL);
- val = readl(timer_of_base(to) + CH_EN);
- writel(val | CH0TMR0EN, timer_of_base(to) + CH_EN);
-
- return 0;
-}
-
-static irqreturn_t atcpit100_timer_interrupt(int irq, void *dev_id)
-{
- struct clock_event_device *evt = (struct clock_event_device *)dev_id;
- struct timer_of *to = to_timer_of(evt);
-
- atcpit100_timer_clear_interrupt(timer_of_base(to));
-
- evt->event_handler(evt);
-
- return IRQ_HANDLED;
-}
-
-static struct timer_of to = {
- .flags = TIMER_OF_IRQ | TIMER_OF_CLOCK | TIMER_OF_BASE,
-
- .clkevt = {
- .name = "atcpit100_tick",
- .rating = 300,
- .features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
- .set_state_shutdown = atcpit100_clkevt_shutdown,
- .set_state_periodic = atcpit100_clkevt_set_periodic,
- .set_state_oneshot = atcpit100_clkevt_set_oneshot,
- .tick_resume = atcpit100_clkevt_shutdown,
- .set_next_event = atcpit100_clkevt_next_event,
- .cpumask = cpu_possible_mask,
- },
-
- .of_irq = {
- .handler = atcpit100_timer_interrupt,
- .flags = IRQF_TIMER | IRQF_IRQPOLL,
- },
-
- /*
- * FIXME: we currently only support clocking using PCLK
- * and using EXTCLK is not supported in the driver.
- */
- .of_clk = {
- .name = "PCLK",
- }
-};
-
-static u64 notrace atcpit100_timer_sched_read(void)
-{
- return ~readl(timer_of_base(&to) + CH1_CNT);
-}
-
-#ifdef CONFIG_NDS32
-static void fill_vdso_need_info(struct device_node *node)
-{
- struct resource timer_res;
- of_address_to_resource(node, 0, &timer_res);
- timer_info.mapping_base = (unsigned long)timer_res.start;
- timer_info.cycle_count_down = true;
- timer_info.cycle_count_reg_offset = CH1_CNT;
-}
-#endif
-
-static int __init atcpit100_timer_init(struct device_node *node)
-{
- int ret;
- u32 val;
- void __iomem *base;
-
- ret = timer_of_init(node, &to);
- if (ret)
- return ret;
-
- base = timer_of_base(&to);
-
- sched_clock_register(atcpit100_timer_sched_read, 32,
- timer_of_rate(&to));
-
- ret = clocksource_mmio_init(base + CH1_CNT,
- node->name, timer_of_rate(&to), 300, 32,
- clocksource_mmio_readl_down);
-
- if (ret) {
- pr_err("Failed to register clocksource\n");
- return ret;
- }
-
- /* clear channel 0 timer0 interrupt */
- atcpit100_timer_clear_interrupt(base);
-
- clockevents_config_and_register(&to.clkevt, timer_of_rate(&to),
- TIMER_SYNC_TICKS, 0xffffffff);
- atcpit100_ch0_tmr0_en(base);
- atcpit100_ch1_tmr0_en(base);
- atcpit100_clocksource_start(base);
- atcpit100_clkevt_time_start(base);
-
- /* Enable channel 0 timer0 interrupt */
- val = readl(base + INT_EN);
- writel(val | CH0INT0EN, base + INT_EN);
-
-#ifdef CONFIG_NDS32
- fill_vdso_need_info(node);
-#endif
-
- return ret;
-}
-
-TIMER_OF_DECLARE(atcpit100, "andestech,atcpit100", atcpit100_timer_init);
diff --git a/drivers/irqchip/Makefile b/drivers/irqchip/Makefile
index c1f611cbfbf8..c6161b0b0cb6 100644
--- a/drivers/irqchip/Makefile
+++ b/drivers/irqchip/Makefile
@@ -92,7 +92,6 @@ obj-$(CONFIG_IRQ_UNIPHIER_AIDET) += irq-uniphier-aidet.o
obj-$(CONFIG_ARCH_SYNQUACER) += irq-sni-exiu.o
obj-$(CONFIG_MESON_IRQ_GPIO) += irq-meson-gpio.o
obj-$(CONFIG_GOLDFISH_PIC) += irq-goldfish-pic.o
-obj-$(CONFIG_NDS32) += irq-ativic32.o
obj-$(CONFIG_QCOM_PDC) += qcom-pdc.o
obj-$(CONFIG_CSKY_MPINTC) += irq-csky-mpintc.o
obj-$(CONFIG_CSKY_APB_INTC) += irq-csky-apb-intc.o
diff --git a/drivers/irqchip/irq-ativic32.c b/drivers/irqchip/irq-ativic32.c
deleted file mode 100644
index 223dd2f97d28..000000000000
--- a/drivers/irqchip/irq-ativic32.c
+++ /dev/null
@@ -1,156 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <linux/irq.h>
-#include <linux/of.h>
-#include <linux/of_irq.h>
-#include <linux/of_address.h>
-#include <linux/hardirq.h>
-#include <linux/interrupt.h>
-#include <linux/irqdomain.h>
-#include <linux/irqchip.h>
-#include <nds32_intrinsic.h>
-
-#include <asm/irq_regs.h>
-
-unsigned long wake_mask;
-
-static void ativic32_ack_irq(struct irq_data *data)
-{
- __nds32__mtsr_dsb(BIT(data->hwirq), NDS32_SR_INT_PEND2);
-}
-
-static void ativic32_mask_irq(struct irq_data *data)
-{
- unsigned long int_mask2 = __nds32__mfsr(NDS32_SR_INT_MASK2);
- __nds32__mtsr_dsb(int_mask2 & (~(BIT(data->hwirq))), NDS32_SR_INT_MASK2);
-}
-
-static void ativic32_unmask_irq(struct irq_data *data)
-{
- unsigned long int_mask2 = __nds32__mfsr(NDS32_SR_INT_MASK2);
- __nds32__mtsr_dsb(int_mask2 | (BIT(data->hwirq)), NDS32_SR_INT_MASK2);
-}
-
-static int nointc_set_wake(struct irq_data *data, unsigned int on)
-{
- unsigned long int_mask = __nds32__mfsr(NDS32_SR_INT_MASK);
- static unsigned long irq_orig_bit;
- u32 bit = 1 << data->hwirq;
-
- if (on) {
- if (int_mask & bit)
- __assign_bit(data->hwirq, &irq_orig_bit, true);
- else
- __assign_bit(data->hwirq, &irq_orig_bit, false);
-
- __assign_bit(data->hwirq, &int_mask, true);
- __assign_bit(data->hwirq, &wake_mask, true);
-
- } else {
- if (!(irq_orig_bit & bit))
- __assign_bit(data->hwirq, &int_mask, false);
-
- __assign_bit(data->hwirq, &wake_mask, false);
- __assign_bit(data->hwirq, &irq_orig_bit, false);
- }
-
- __nds32__mtsr_dsb(int_mask, NDS32_SR_INT_MASK);
-
- return 0;
-}
-
-static struct irq_chip ativic32_chip = {
- .name = "ativic32",
- .irq_ack = ativic32_ack_irq,
- .irq_mask = ativic32_mask_irq,
- .irq_unmask = ativic32_unmask_irq,
- .irq_set_wake = nointc_set_wake,
-};
-
-static unsigned int __initdata nivic_map[6] = { 6, 2, 10, 16, 24, 32 };
-
-static struct irq_domain *root_domain;
-static int ativic32_irq_domain_map(struct irq_domain *id, unsigned int virq,
- irq_hw_number_t hw)
-{
-
- unsigned long int_trigger_type;
- u32 type;
- struct irq_data *irq_data;
- int_trigger_type = __nds32__mfsr(NDS32_SR_INT_TRIGGER);
- irq_data = irq_get_irq_data(virq);
- if (!irq_data)
- return -EINVAL;
-
- if (int_trigger_type & (BIT(hw))) {
- irq_set_chip_and_handler(virq, &ativic32_chip, handle_edge_irq);
- type = IRQ_TYPE_EDGE_RISING;
- } else {
- irq_set_chip_and_handler(virq, &ativic32_chip, handle_level_irq);
- type = IRQ_TYPE_LEVEL_HIGH;
- }
-
- irqd_set_trigger_type(irq_data, type);
- return 0;
-}
-
-static const struct irq_domain_ops ativic32_ops = {
- .map = ativic32_irq_domain_map,
- .xlate = irq_domain_xlate_onecell
-};
-
-static irq_hw_number_t get_intr_src(void)
-{
- return ((__nds32__mfsr(NDS32_SR_ITYPE) & ITYPE_mskVECTOR) >> ITYPE_offVECTOR)
- - NDS32_VECTOR_offINTERRUPT;
-}
-
-static void ativic32_handle_irq(struct pt_regs *regs)
-{
- irq_hw_number_t hwirq = get_intr_src();
- generic_handle_domain_irq(root_domain, hwirq);
-}
-
-/*
- * TODO: convert nds32 to GENERIC_IRQ_MULTI_HANDLER so that this entry logic
- * can live in arch code.
- */
-asmlinkage void asm_do_IRQ(struct pt_regs *regs)
-{
- struct pt_regs *old_regs;
-
- irq_enter();
- old_regs = set_irq_regs(regs);
- ativic32_handle_irq(regs);
- set_irq_regs(old_regs);
- irq_exit();
-}
-
-int __init ativic32_init_irq(struct device_node *node, struct device_node *parent)
-{
- unsigned long int_vec_base, nivic, nr_ints;
-
- if (WARN(parent, "non-root ativic32 are not supported"))
- return -EINVAL;
-
- int_vec_base = __nds32__mfsr(NDS32_SR_IVB);
-
- if (((int_vec_base & IVB_mskIVIC_VER) >> IVB_offIVIC_VER) == 0)
- panic("Unable to use atcivic32 for this cpu.\n");
-
- nivic = (int_vec_base & IVB_mskNIVIC) >> IVB_offNIVIC;
- if (nivic >= ARRAY_SIZE(nivic_map))
- panic("The number of input for ativic32 is not supported.\n");
-
- nr_ints = nivic_map[nivic];
-
- root_domain = irq_domain_add_linear(node, nr_ints,
- &ativic32_ops, NULL);
-
- if (!root_domain)
- panic("%s: unable to create IRQ domain\n", node->full_name);
-
- return 0;
-}
-IRQCHIP_DECLARE(ativic32, "andestech,ativic32", ativic32_init_irq);
diff --git a/drivers/net/ethernet/faraday/Kconfig b/drivers/net/ethernet/faraday/Kconfig
index 3d1e9a302148..c699bd6bcbb9 100644
--- a/drivers/net/ethernet/faraday/Kconfig
+++ b/drivers/net/ethernet/faraday/Kconfig
@@ -6,7 +6,7 @@
config NET_VENDOR_FARADAY
bool "Faraday devices"
default y
- depends on ARM || NDS32 || COMPILE_TEST
+ depends on ARM || COMPILE_TEST
help
If you have a network (Ethernet) card belonging to this class, say Y.
@@ -19,24 +19,22 @@ if NET_VENDOR_FARADAY
config FTMAC100
tristate "Faraday FTMAC100 10/100 Ethernet support"
- depends on ARM || NDS32 || COMPILE_TEST
+ depends on ARM || COMPILE_TEST
depends on !64BIT || BROKEN
select MII
help
This driver supports the FTMAC100 10/100 Ethernet controller
- from Faraday. It is used on Faraday A320, Andes AG101 and some
- other ARM/NDS32 SoC's.
+ from Faraday. It is used on Faraday A320 and some other ARM SoC's.
config FTGMAC100
tristate "Faraday FTGMAC100 Gigabit Ethernet support"
- depends on ARM || NDS32 || COMPILE_TEST
+ depends on ARM || COMPILE_TEST
depends on !64BIT || BROKEN
select PHYLIB
select MDIO_ASPEED if MACH_ASPEED_G6
select CRC32
help
This driver supports the FTGMAC100 Gigabit Ethernet controller
- from Faraday. It is used on Faraday A369, Andes AG102 and some
- other ARM/NDS32 SoC's.
+ from Faraday. It is used on Faraday A369 and some other ARM SoC's.
endif # NET_VENDOR_FARADAY
diff --git a/drivers/video/console/Kconfig b/drivers/video/console/Kconfig
index fcc46380e7c9..40c50fa2dd70 100644
--- a/drivers/video/console/Kconfig
+++ b/drivers/video/console/Kconfig
@@ -9,7 +9,7 @@ config VGA_CONSOLE
bool "VGA text console" if EXPERT || !X86
depends on !4xx && !PPC_8xx && !SPARC && !M68K && !PARISC && !SUPERH && \
(!ARM || ARCH_FOOTBRIDGE || ARCH_INTEGRATOR || ARCH_NETWINDER) && \
- !ARM64 && !ARC && !MICROBLAZE && !OPENRISC && !NDS32 && !S390 && !UML
+ !ARM64 && !ARC && !MICROBLAZE && !OPENRISC && !S390 && !UML
default y
help
Saying Y here will allow you to use Linux in text mode through a
diff --git a/scripts/recordmcount.pl b/scripts/recordmcount.pl
index 3ccb2c70add4..6a4645a57976 100755
--- a/scripts/recordmcount.pl
+++ b/scripts/recordmcount.pl
@@ -362,9 +362,6 @@ if ($arch eq "x86_64") {
$mcount_regex = "^\\s*([0-9a-fA-F]+):\\sR_RISCV_CALL(_PLT)?\\s_?mcount\$";
$type = ".quad";
$alignment = 2;
-} elsif ($arch eq "nds32") {
- $mcount_regex = "^\\s*([0-9a-fA-F]+):\\s*R_NDS32_HI20_RELA\\s+_mcount\$";
- $alignment = 2;
} elsif ($arch eq "csky") {
$mcount_regex = "^\\s*([0-9a-fA-F]+):\\s*R_CKCORE_PCREL_JSR_IMM26BY2\\s+_mcount\$";
$alignment = 2;
diff --git a/tools/include/asm/barrier.h b/tools/include/asm/barrier.h
index dc696c151e1c..8d378c57cb01 100644
--- a/tools/include/asm/barrier.h
+++ b/tools/include/asm/barrier.h
@@ -24,8 +24,6 @@
#include "../../arch/ia64/include/asm/barrier.h"
#elif defined(__xtensa__)
#include "../../arch/xtensa/include/asm/barrier.h"
-#elif defined(__nds32__)
-#include "../../arch/nds32/include/asm/barrier.h"
#else
#include <asm-generic/barrier.h>
#endif
diff --git a/tools/perf/arch/nds32/Build b/tools/perf/arch/nds32/Build
deleted file mode 100644
index e4e5f33c84d8..000000000000
--- a/tools/perf/arch/nds32/Build
+++ /dev/null
@@ -1 +0,0 @@
-perf-y += util/
diff --git a/tools/perf/arch/nds32/util/Build b/tools/perf/arch/nds32/util/Build
deleted file mode 100644
index d0bc205fe49a..000000000000
--- a/tools/perf/arch/nds32/util/Build
+++ /dev/null
@@ -1 +0,0 @@
-perf-y += header.o
diff --git a/tools/perf/arch/nds32/util/header.c b/tools/perf/arch/nds32/util/header.c
deleted file mode 100644
index ef9dbdbe7968..000000000000
--- a/tools/perf/arch/nds32/util/header.c
+++ /dev/null
@@ -1,29 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <api/fs/fs.h>
-#include "header.h"
-
-#define STR_LEN 1024
-
-char *get_cpuid_str(struct perf_pmu *pmu)
-{
- /* In nds32, we only have one cpu */
- char *buf = NULL;
- struct cpu_map *cpus;
- const char *sysfs = sysfs__mountpoint();
-
- if (!sysfs || !pmu || !pmu->cpus)
- return NULL;
-
- buf = malloc(STR_LEN);
- if (!buf)
- return NULL;
-
- cpus = cpu_map__get(pmu->cpus);
- sprintf(buf, "0x%x", cpus->nr - 1);
- cpu_map__put(cpus);
- return buf;
-}
diff --git a/tools/testing/selftests/vDSO/vdso_config.h b/tools/testing/selftests/vDSO/vdso_config.h
index 6188b16827d1..cdfed403ba13 100644
--- a/tools/testing/selftests/vDSO/vdso_config.h
+++ b/tools/testing/selftests/vDSO/vdso_config.h
@@ -53,10 +53,6 @@
#if __riscv_xlen == 32
#define VDSO_32BIT 1
#endif
-#else /* nds32 */
-#define VDSO_VERSION 4
-#define VDSO_NAMES 1
-#define VDSO_32BIT 1
#endif
static const char *versions[6] = {
--
2.25.1
Powered by blists - more mailing lists