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Message-ID: <2c804359-3d43-0fba-7173-a87f9aec4bd2@kernel.org>
Date: Mon, 29 Sep 2025 02:00:17 -0600 (MDT)
From: Paul Walmsley <pjw@...nel.org>
To: torvalds@...ux-foundation.org
cc: linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [GIT PULL] RISC-V updates for v6.18-rc1
Linus,
The following changes since commit a03ee11b8f850bd008226c6d392da24163dfb56e:
riscv: Fix sparse warning about different address spaces (2025-09-05 15:33:52 -0600)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux tags/riscv-for-linus-6.18-mw1
for you to fetch changes up to 0b0ca959d20689fece038954bbf1d7b14c0b11c3:
riscv: errata: Fix the PAUSE Opcode for MIPS P8700 (2025-09-19 10:33:56 -0600)
----------------------------------------------------------------
RISC-V updates for the v6.18 merge window (part one)
First set of RISC-V updates for the v6.18 merge window, including:
- Replacement of __ASSEMBLY__ with __ASSEMBLER__ in header files (other
architectures have already merged this type of cleanup)
- The introduction of ioremap_wc() for RISC-V
- Cleanup of the RISC-V kprobes code to use mostly-extant macros rather than
open code
- A RISC-V kprobes unit test
- An architecture-specific endianness swap macro set implementation,
leveraging some dedicated RISC-V instructions for this purpose if they
are available
- The ability to identity and communicate to userspace the presence of a
MIPS P8700-specific ISA extension, and to leverage its MIPS-specific PAUSE
implementation in cpu_relax()
- Several other miscellaneous cleanups
----------------------------------------------------------------
Aleksa Paunovic (5):
dt-bindings: riscv: Add xmipsexectl ISA extension description
riscv: Add xmipsexectl as a vendor extension
riscv: Add xmipsexectl instructions
riscv: hwprobe: Add MIPS vendor extension probing
riscv: hwprobe: Document MIPS xmipsexectl vendor extension
Alexandre Ghiti (3):
riscv: Fix typo EXRACT -> EXTRACT
riscv: Strengthen duplicate and inconsistent definition of RV_X()
riscv: Move all duplicate insn parsing macros into asm/insn.h
Andrew Davis (1):
riscv: sbi: Switch to new sys-off handler API
Bala-Vignesh-Reddy (1):
selftests: riscv: Add README for RISC-V KSelfTest
Chunyan Zhang (2):
raid6: riscv: Clean up unused header file inclusion
raid6: riscv: replace one load with a move to speed up the caculation
Clément Léger (1):
riscv: cpufeature: add validation for zfa, zfh and zfhmin
Djordje Todorovic (1):
riscv: errata: Fix the PAUSE Opcode for MIPS P8700
Guo Ren (Alibaba DAMO Academy) (1):
riscv: Move vendor errata definitions to new header
Heinrich Schuchardt (1):
RISC-V: ACPI: enable parsing the BGRT table
Ignacio Encinas (1):
riscv: introduce asm/swab.h
Jessica Liu (1):
riscv: mmap(): use unsigned offset type in riscv_sys_mmap
Junhui Liu (2):
riscv: mm: Return intended SATP mode for noXlvl options
riscv: mm: Use mmu-type from FDT to limit SATP mode
Liao Yuanhong (1):
drivers/perf: riscv: Remove redundant ternary operators
Masahiro Yamada (1):
riscv: pi: use 'targets' instead of extra-y in Makefile
Nam Cao (12):
riscv: Add kprobes KUnit test
riscv: kprobes: Move branch_rs2_idx to insn.h
riscv: kprobes: Move branch_funct3 to insn.h
riscv: kprobes: Remove duplication of RV_EXTRACT_JTYPE_IMM
riscv: kprobes: Remove duplication of RV_EXTRACT_RS1_REG
riscv: kprobes: Remove duplication of RV_EXTRACT_BTYPE_IMM
riscv: kprobes: Remove duplication of RVC_EXTRACT_JTYPE_IMM
riscv: kprobes: Remove duplication of RVC_EXTRACT_C2_RS1_REG
riscv: kprobes: Remove duplication of RVC_EXTRACT_BTYPE_IMM
riscv: kprobes: Remove duplication of RV_EXTRACT_RD_REG
riscv: kprobes: Remove duplication of RV_EXTRACT_UTYPE_IMM
riscv: kprobes: Remove duplication of RV_EXTRACT_ITYPE_IMM
Pu Lehui (1):
riscv: Enable ARCH_HAVE_NMI_SAFE_CMPXCHG
Thomas Huth (2):
riscv: Replace __ASSEMBLY__ with __ASSEMBLER__ in uapi headers
riscv: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
Yunhui Cui (2):
riscv: introduce ioremap_wc()
perf: riscv: skip empty batches in counter start
Documentation/arch/riscv/hwprobe.rst | 9 +
.../devicetree/bindings/riscv/extensions.yaml | 6 +
arch/riscv/Kconfig | 1 +
arch/riscv/Kconfig.errata | 23 +++
arch/riscv/Kconfig.vendor | 13 ++
arch/riscv/errata/Makefile | 1 +
arch/riscv/errata/mips/Makefile | 5 +
arch/riscv/errata/mips/errata.c | 67 ++++++
arch/riscv/include/asm/alternative-macros.h | 12 +-
arch/riscv/include/asm/alternative.h | 5 +-
arch/riscv/include/asm/asm-extable.h | 6 +-
arch/riscv/include/asm/asm.h | 10 +-
arch/riscv/include/asm/assembler.h | 2 +-
arch/riscv/include/asm/barrier.h | 4 +-
arch/riscv/include/asm/cache.h | 4 +-
arch/riscv/include/asm/cmpxchg.h | 3 +-
arch/riscv/include/asm/cpu_ops_sbi.h | 2 +-
arch/riscv/include/asm/csr.h | 4 +-
arch/riscv/include/asm/current.h | 4 +-
arch/riscv/include/asm/errata_list.h | 38 ++--
arch/riscv/include/asm/errata_list_vendors.h | 29 +++
arch/riscv/include/asm/ftrace.h | 6 +-
arch/riscv/include/asm/gpr-num.h | 6 +-
arch/riscv/include/asm/hwprobe.h | 3 +-
arch/riscv/include/asm/image.h | 4 +-
arch/riscv/include/asm/insn-def.h | 8 +-
arch/riscv/include/asm/insn.h | 216 +++++++++++++++++--
arch/riscv/include/asm/io.h | 4 +
arch/riscv/include/asm/jump_label.h | 4 +-
arch/riscv/include/asm/kasan.h | 2 +-
arch/riscv/include/asm/kgdb.h | 4 +-
arch/riscv/include/asm/mmu.h | 4 +-
arch/riscv/include/asm/page.h | 4 +-
arch/riscv/include/asm/pgtable.h | 5 +-
arch/riscv/include/asm/processor.h | 4 +-
arch/riscv/include/asm/ptrace.h | 4 +-
arch/riscv/include/asm/scs.h | 4 +-
arch/riscv/include/asm/set_memory.h | 4 +-
arch/riscv/include/asm/swab.h | 87 ++++++++
arch/riscv/include/asm/thread_info.h | 4 +-
arch/riscv/include/asm/vdso.h | 4 +-
arch/riscv/include/asm/vdso/getrandom.h | 4 +-
arch/riscv/include/asm/vdso/gettimeofday.h | 4 +-
arch/riscv/include/asm/vdso/processor.h | 7 +-
arch/riscv/include/asm/vdso/vsyscall.h | 4 +-
arch/riscv/include/asm/vendor_extensions/mips.h | 37 ++++
.../include/asm/vendor_extensions/mips_hwprobe.h | 22 ++
arch/riscv/include/asm/vendorid_list.h | 1 +
arch/riscv/include/uapi/asm/hwprobe.h | 1 +
arch/riscv/include/uapi/asm/kvm.h | 2 +-
arch/riscv/include/uapi/asm/ptrace.h | 4 +-
arch/riscv/include/uapi/asm/sigcontext.h | 4 +-
arch/riscv/include/uapi/asm/vendor/mips.h | 3 +
arch/riscv/kernel/acpi.c | 3 +
arch/riscv/kernel/alternative.c | 5 +
arch/riscv/kernel/cpufeature.c | 6 +-
arch/riscv/kernel/entry.S | 1 +
arch/riscv/kernel/machine_kexec_file.c | 2 +-
arch/riscv/kernel/pi/Makefile | 2 +-
arch/riscv/kernel/pi/cmdline_early.c | 4 +-
arch/riscv/kernel/pi/fdt_early.c | 40 ++++
arch/riscv/kernel/pi/pi.h | 1 +
arch/riscv/kernel/probes/simulate-insn.c | 94 ++-------
arch/riscv/kernel/sbi.c | 4 +-
arch/riscv/kernel/sys_hwprobe.c | 18 +-
arch/riscv/kernel/sys_riscv.c | 2 +-
arch/riscv/kernel/tests/Kconfig.debug | 12 ++
arch/riscv/kernel/tests/Makefile | 1 +
arch/riscv/kernel/tests/kprobes/Makefile | 1 +
arch/riscv/kernel/tests/kprobes/test-kprobes-asm.S | 229 +++++++++++++++++++++
arch/riscv/kernel/tests/kprobes/test-kprobes.c | 56 +++++
arch/riscv/kernel/tests/kprobes/test-kprobes.h | 24 +++
arch/riscv/kernel/traps_misaligned.c | 144 +------------
arch/riscv/kernel/vector.c | 2 +-
arch/riscv/kernel/vendor_extensions.c | 10 +
arch/riscv/kernel/vendor_extensions/Makefile | 2 +
arch/riscv/kernel/vendor_extensions/mips.c | 22 ++
arch/riscv/kernel/vendor_extensions/mips_hwprobe.c | 23 +++
arch/riscv/kvm/vcpu_insn.c | 128 +-----------
arch/riscv/mm/init.c | 12 +-
drivers/perf/riscv_pmu_sbi.c | 8 +-
lib/raid6/recov_rvv.c | 2 -
lib/raid6/rvv.c | 63 +++---
tools/arch/riscv/include/asm/csr.h | 6 +-
tools/arch/riscv/include/asm/vdso/processor.h | 4 +-
tools/testing/selftests/riscv/README | 24 +++
86 files changed, 1147 insertions(+), 530 deletions(-)
create mode 100644 arch/riscv/errata/mips/Makefile
create mode 100644 arch/riscv/errata/mips/errata.c
create mode 100644 arch/riscv/include/asm/errata_list_vendors.h
create mode 100644 arch/riscv/include/asm/swab.h
create mode 100644 arch/riscv/include/asm/vendor_extensions/mips.h
create mode 100644 arch/riscv/include/asm/vendor_extensions/mips_hwprobe.h
create mode 100644 arch/riscv/include/uapi/asm/vendor/mips.h
create mode 100644 arch/riscv/kernel/tests/kprobes/Makefile
create mode 100644 arch/riscv/kernel/tests/kprobes/test-kprobes-asm.S
create mode 100644 arch/riscv/kernel/tests/kprobes/test-kprobes.c
create mode 100644 arch/riscv/kernel/tests/kprobes/test-kprobes.h
create mode 100644 arch/riscv/kernel/vendor_extensions/mips.c
create mode 100644 arch/riscv/kernel/vendor_extensions/mips_hwprobe.c
create mode 100644 tools/testing/selftests/riscv/README
text data bss dec hex filename
12772113 6174082 419253 19365448 1277e48 vmlinux.rv64.orig
12839941 6181502 419253 19440696 128a438 vmlinux.rv64
11725507 5994510 404229 18124246 1148dd6 vmlinux.rv64_nosmp.orig
11788867 6000158 404229 18193254 1159b66 vmlinux.rv64_nosmp
11723502 4702818 309629 16735949 ff5ecd vmlinux.rv32.orig
11771062 4703702 309629 16784393 1001c09 vmlinux.rv32
2612497 761072 119048 3492617 354b09 vmlinux.nommu_virt.orig
2615066 758584 119048 3492698 354b5a vmlinux.nommu_virt
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