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Message-ID: <CAAhV-H4i4tvo_fVvTThugXsMn1hpDWu4vn+EPrh=kw9V5QurYg@mail.gmail.com>
Date: Sat, 4 Jun 2022 14:25:38 +0800
From: Huacai Chen <chenhuacai@...nel.org>
To: Arnd Bergmann <arnd@...nel.org>,
Linus Torvalds <torvalds@...ux-foundation.org>,
WANG Xuerui <kernel@...0n.name>,
Ard Biesheuvel <ardb@...nel.org>,
Marc Zyngier <maz@...nel.org>,
Stephen Rothwell <sfr@...b.auug.org.au>,
Jiaxun Yang <jiaxun.yang@...goat.com>,
Guo Ren <guoren@...nel.org>, Xi Ruoyao <xry111@...111.site>,
Eric Biederman <ebiederm@...ssion.com>,
"Jason A. Donenfeld" <Jason@...c4.com>,
Javier Martinez Canillas <javierm@...hat.com>,
Haowen Bai <baihaowen@...zu.com>,
Bagas Sanjaya <bagasdotme@...il.com>, gaoxiang@...ngson.cn,
Li Xuefeng <lixuefeng@...ngson.cn>,
Jianmin Lv <lvjianmin@...ngson.cn>,
Yun Liu <liuyun@...ngson.cn>, lichao@...ngson.cn,
hww@...ngson.cn, zhangfuxin@...ngson.cn, wushaogang@...ngson.cn,
Tiezhu Yang <yangtiezhu@...ngson.cn>,
maobibo <maobibo@...ngson.cn>, lihanlu@...ngson.cn,
yijun@...ngson.cn, Feiyang Chen <chenfeiyang@...ngson.cn>,
Yanteng Si <siyanteng@...ngson.cn>,
Wang Haojun <wanghaojun@...ngson.cn>, zhoubinbin@...ngson.cn,
wuxiaotian@...ngson.cn, liweihao@...ngson.cn,
qiaochong@...ngson.cn, yeqining@...ngson.cn,
LIU An <liuan@...c.com.cn>,
Youling Tang <tangyouling@...ngson.cn>,
Jinyang He <hejinyang@...ngson.cn>,
Qing Zhang <zhangqing@...ngson.cn>, tanj@...ote.com
Cc: linux-arch <linux-arch@...r.kernel.org>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [GIT PULL] Add partial Loongarch architecture code
Hi all,
Many thanks to everyone involved!
Thanks to Arnd; you have reviewed as many as 15 versions of the
patchset, taught me step by step, from large refactoring to code
details. These days, I have disturbed you much and may make you feel
tired. With the port mainlined, finally we could stop rushing things.
Thanks to Xuerui, for helping me a lot, from code design, documents
writing to communication and coordination. You have sacrificed so much
of your own time, and solved so many troubles caused by my terrible
English. I'm happy to know that you are willing to become a regular
reviewer of LoongArch.
Thanks to Ard and Marc, for the in-depth conversations that helped
Loongson and LoongArch to improve, and for pointing out how to drop
the more controversial parts, enabling the "good parts" to be
upstreamed in time.
Thanks to Linus, for starting this great project and the continued
maintenance, making developers in our large community able to
collaborate with each other.
Thanks to all the community members who have helped: Steven, Jiaxun,
Guo Ren, Ruoyao, Eric, Jason, Javier, Haowen, Bagas, who have
commented, and certainly others that helped outside of the mailing
lists.
Thanks to my leaders, my colleagues, my family and my friends. Most of
your contributions are unsung. Honor belongs to all of us.
Thank all of you again!
Huacai
[P.S. this letter was proofread and lightly edited by Xuerui too, but
he chose to mostly keep intact the vibe of a traditional, distinctly
Chinese-style thank-you letter, instead of effectively rewriting the
whole thing. This is not code or documentation after all...]
On Sat, Jun 4, 2022 at 2:26 AM Arnd Bergmann <arnd@...nel.org> wrote:
>
> The following changes since commit 50fd82b3a9a9335df5d50c7ddcb81c81d358c4fc:
>
> Merge tag 'docs-5.19-2' of git://git.lwn.net/linux (2022-06-02 15:36:06 -0700)
>
> are available in the Git repository at:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic.git
> tags/loongarch-5.19
>
> for you to fetch changes up to 8be4493119b0aedf7dd61e1ca520fb398537b53e:
>
> MAINTAINERS: Add maintainer information for LoongArch (2022-06-03
> 20:09:29 +0800)
>
> [ Side note: All the contents in this branch look fine to me and I think we are
> better off with them in 5.19 than later, mainly because it allows merging the
> glibc port sooner. On the other hand, the way here has been somewhat irregular
> and rushed, and as explained in the tag it doesn't actually boot. If
> you have any
> doubts about the submission, it can obviously wait for another release and get
> done properly then. - Arnd ]
>
> ----------------------------------------------------------------
> Add partial Loongarch architecture code
>
> This is the majority of the loongarch architecture code, including
> the final system call interface and all core functionality.
>
> It still misses three sets of peripheral but vital patches to add
> support for other subsystems, which have yet to pass review:
>
> - The drivers/firmware/efi stub for booting from a standard UEFI
> firmware implementation. Both the original custom boot interface
> and a draft implementation of the EFI stub did not make it, so
> it is currently impossible to boot the kernel, until the
> loongarch specific portions get accepted into the UEFI subsystem
>
> - The drivers/irqchip/irq-loongson-*.c drivers are shared with the
> MIPS port, but currently lack support for ACPI based booting,
> which will get merged through the irqchip subsystem.
>
> - Similarly, the drivers/pci/controller/pci-loongson.c needs to be
> modified for ACPI support, which will be merged through the
> PCI subsystem.
>
> While the port cannot actually be used before all the above are
> merged, having it in 5.19 helps to establish the user space ABI
> for the libc ports to build on, and to help any treewide changes
> in the mainline kernel get applied here as well. A gcc-12 based
> tool chains for build testing is now included in
> https://mirrors.edge.kernel.org/pub/tools/crosstool/.
>
> Original description from Huacai Chen at
> https://lore.kernel.org/lkml/20220603072053.35005-1-chenhuacai@loongson.cn/:
>
> "LoongArch is a new RISC ISA, which is a bit like MIPS or RISC-V.
> LoongArch includes a reduced 32-bit version (LA32R), a standard 32-bit
> version (LA32S) and a 64-bit version (LA64). LoongArch use ACPI as its
> boot protocol LoongArch-specific interrupt controllers (similar to APIC)
> are already added in the next revision of ACPI Specification (current
> revision is 6.4).
>
> This patchset is adding basic LoongArch support in mainline kernel, we
> can see a complete snapshot here:
> https://github.com/loongson/linux/tree/loongarch-next
> https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson.git/log/?h=loongarch-next
>
> Cross-compile tool chain to build kernel:
> https://github.com/loongson/build-tools/releases/download/2021.12.21/loongarch64-clfs-2022-03-03-cross-tools-gcc-glibc.tar.xz
>
> A CLFS-based Linux distro:
> https://github.com/loongson/build-tools/releases/download/2021.12.21/loongarch64-clfs-system-2022-03-03.tar.bz2
>
> Open-source tool chain which is under review (Binutils and Gcc are
> already upstream):
> https://github.com/loongson/binutils-gdb/tree/upstream_v3.1
> https://github.com/loongson/gcc/tree/loongarch_upstream_v6.3
> https://github.com/loongson/glibc/tree/loongarch_2_35_dev_v2.2
>
> Loongson and LoongArch documentations:
> https://github.com/loongson/LoongArch-Documentation
>
> LoongArch-specific interrupt controllers:
> https://mantis.uefi.org/mantis/view.php?id=2203
> https://mantis.uefi.org/mantis/view.php?id=2313"
>
> ----------------------------------------------------------------
> Huacai Chen (24):
> irqchip: Adjust Kconfig for Loongson
> irqchip/loongson-liointc: Fix build error for LoongArch
> Documentation: LoongArch: Add basic documentations
> Documentation/zh_CN: Add basic LoongArch documentations
> LoongArch: Add ELF-related definitions
> LoongArch: Add writecombine support for drm
> LoongArch: Add build infrastructure
> LoongArch: Add CPU definition headers
> LoongArch: Add atomic/locking headers
> LoongArch: Add other common headers
> LoongArch: Add boot and setup routines
> LoongArch: Add exception/interrupt handling
> LoongArch: Add process management
> LoongArch: Add memory management
> LoongArch: Add system call support
> LoongArch: Add signal handling support
> LoongArch: Add ELF and module support
> LoongArch: Add misc common routines
> LoongArch: Add some library functions
> LoongArch: Add VDSO and VSYSCALL support
> LoongArch: Add multi-processor (SMP) support
> LoongArch: Add Non-Uniform Memory Access (NUMA) support
> LoongArch: Add Loongson-3 default config file
> MAINTAINERS: Add maintainer information for LoongArch
>
> Documentation/arch.rst | 1 +
> Documentation/loongarch/features.rst | 3 +
> Documentation/loongarch/index.rst | 21 +
> Documentation/loongarch/introduction.rst | 387 +++++
> Documentation/loongarch/irq-chip-model.rst | 156 ++
> Documentation/translations/zh_CN/index.rst | 1 +
> .../translations/zh_CN/loongarch/features.rst | 8 +
> .../translations/zh_CN/loongarch/index.rst | 26 +
> .../translations/zh_CN/loongarch/introduction.rst | 351 +++++
> .../zh_CN/loongarch/irq-chip-model.rst | 155 ++
> MAINTAINERS | 10 +
> arch/loongarch/Kbuild | 6 +
> arch/loongarch/Kconfig | 438 ++++++
> arch/loongarch/Kconfig.debug | 0
> arch/loongarch/Makefile | 100 ++
> arch/loongarch/boot/.gitignore | 2 +
> arch/loongarch/boot/Makefile | 16 +
> arch/loongarch/boot/dts/Makefile | 4 +
> arch/loongarch/configs/loongson3_defconfig | 771 ++++++++++
> arch/loongarch/include/asm/Kbuild | 30 +
> arch/loongarch/include/asm/acenv.h | 18 +
> arch/loongarch/include/asm/acpi.h | 38 +
> arch/loongarch/include/asm/addrspace.h | 112 ++
> arch/loongarch/include/asm/asm-offsets.h | 5 +
> arch/loongarch/include/asm/asm-prototypes.h | 7 +
> arch/loongarch/include/asm/asm.h | 191 +++
> arch/loongarch/include/asm/asmmacro.h | 289 ++++
> arch/loongarch/include/asm/atomic.h | 362 +++++
> arch/loongarch/include/asm/barrier.h | 159 ++
> arch/loongarch/include/asm/bitops.h | 33 +
> arch/loongarch/include/asm/bitrev.h | 34 +
> arch/loongarch/include/asm/bootinfo.h | 43 +
> arch/loongarch/include/asm/branch.h | 21 +
> arch/loongarch/include/asm/bug.h | 23 +
> arch/loongarch/include/asm/cache.h | 13 +
> arch/loongarch/include/asm/cacheflush.h | 80 ++
> arch/loongarch/include/asm/cacheops.h | 37 +
> arch/loongarch/include/asm/clocksource.h | 12 +
> arch/loongarch/include/asm/cmpxchg.h | 123 ++
> arch/loongarch/include/asm/compiler.h | 15 +
> arch/loongarch/include/asm/cpu-features.h | 73 +
> arch/loongarch/include/asm/cpu-info.h | 116 ++
> arch/loongarch/include/asm/cpu.h | 127 ++
> arch/loongarch/include/asm/cpufeature.h | 24 +
> arch/loongarch/include/asm/delay.h | 26 +
> arch/loongarch/include/asm/dma-direct.h | 11 +
> arch/loongarch/include/asm/dmi.h | 24 +
> arch/loongarch/include/asm/efi.h | 41 +
> arch/loongarch/include/asm/elf.h | 301 ++++
> arch/loongarch/include/asm/entry-common.h | 13 +
> arch/loongarch/include/asm/exec.h | 10 +
> arch/loongarch/include/asm/fb.h | 23 +
> arch/loongarch/include/asm/fixmap.h | 13 +
> arch/loongarch/include/asm/fpregdef.h | 53 +
> arch/loongarch/include/asm/fpu.h | 129 ++
> arch/loongarch/include/asm/futex.h | 108 ++
> arch/loongarch/include/asm/hardirq.h | 26 +
> arch/loongarch/include/asm/hugetlb.h | 83 ++
> arch/loongarch/include/asm/hw_irq.h | 17 +
> arch/loongarch/include/asm/idle.h | 9 +
> arch/loongarch/include/asm/inst.h | 117 ++
> arch/loongarch/include/asm/io.h | 129 ++
> arch/loongarch/include/asm/irq.h | 132 ++
> arch/loongarch/include/asm/irq_regs.h | 27 +
> arch/loongarch/include/asm/irqflags.h | 78 +
> arch/loongarch/include/asm/kdebug.h | 23 +
> arch/loongarch/include/asm/linkage.h | 36 +
> arch/loongarch/include/asm/local.h | 138 ++
> arch/loongarch/include/asm/loongarch.h | 1516 ++++++++++++++++++++
> arch/loongarch/include/asm/loongson.h | 153 ++
> arch/loongarch/include/asm/mmu.h | 16 +
> arch/loongarch/include/asm/mmu_context.h | 152 ++
> arch/loongarch/include/asm/mmzone.h | 18 +
> arch/loongarch/include/asm/module.h | 80 ++
> arch/loongarch/include/asm/module.lds.h | 7 +
> arch/loongarch/include/asm/numa.h | 67 +
> arch/loongarch/include/asm/page.h | 115 ++
> arch/loongarch/include/asm/percpu.h | 214 +++
> arch/loongarch/include/asm/perf_event.h | 10 +
> arch/loongarch/include/asm/pgalloc.h | 103 ++
> arch/loongarch/include/asm/pgtable-bits.h | 131 ++
> arch/loongarch/include/asm/pgtable.h | 565 ++++++++
> arch/loongarch/include/asm/prefetch.h | 29 +
> arch/loongarch/include/asm/processor.h | 209 +++
> arch/loongarch/include/asm/ptrace.h | 152 ++
> arch/loongarch/include/asm/reboot.h | 10 +
> arch/loongarch/include/asm/regdef.h | 41 +
> arch/loongarch/include/asm/seccomp.h | 20 +
> arch/loongarch/include/asm/serial.h | 11 +
> arch/loongarch/include/asm/setup.h | 21 +
> arch/loongarch/include/asm/shmparam.h | 12 +
> arch/loongarch/include/asm/smp.h | 124 ++
> arch/loongarch/include/asm/sparsemem.h | 23 +
> arch/loongarch/include/asm/stackframe.h | 219 +++
> arch/loongarch/include/asm/stacktrace.h | 74 +
> arch/loongarch/include/asm/string.h | 12 +
> arch/loongarch/include/asm/switch_to.h | 37 +
> arch/loongarch/include/asm/syscall.h | 74 +
> arch/loongarch/include/asm/thread_info.h | 106 ++
> arch/loongarch/include/asm/time.h | 50 +
> arch/loongarch/include/asm/timex.h | 33 +
> arch/loongarch/include/asm/tlb.h | 180 +++
> arch/loongarch/include/asm/tlbflush.h | 48 +
> arch/loongarch/include/asm/topology.h | 41 +
> arch/loongarch/include/asm/types.h | 19 +
> arch/loongarch/include/asm/uaccess.h | 269 ++++
> arch/loongarch/include/asm/unistd.h | 11 +
> arch/loongarch/include/asm/vdso.h | 38 +
> arch/loongarch/include/asm/vdso/clocksource.h | 8 +
> arch/loongarch/include/asm/vdso/gettimeofday.h | 99 ++
> arch/loongarch/include/asm/vdso/processor.h | 14 +
> arch/loongarch/include/asm/vdso/vdso.h | 30 +
> arch/loongarch/include/asm/vdso/vsyscall.h | 27 +
> arch/loongarch/include/asm/vermagic.h | 19 +
> arch/loongarch/include/asm/vmalloc.h | 4 +
> arch/loongarch/include/uapi/asm/Kbuild | 2 +
> arch/loongarch/include/uapi/asm/auxvec.h | 17 +
> arch/loongarch/include/uapi/asm/bitsperlong.h | 9 +
> arch/loongarch/include/uapi/asm/break.h | 23 +
> arch/loongarch/include/uapi/asm/byteorder.h | 13 +
> arch/loongarch/include/uapi/asm/hwcap.h | 20 +
> arch/loongarch/include/uapi/asm/ptrace.h | 52 +
> arch/loongarch/include/uapi/asm/reg.h | 59 +
> arch/loongarch/include/uapi/asm/sigcontext.h | 44 +
> arch/loongarch/include/uapi/asm/signal.h | 13 +
> arch/loongarch/include/uapi/asm/ucontext.h | 35 +
> arch/loongarch/include/uapi/asm/unistd.h | 5 +
> arch/loongarch/kernel/.gitignore | 2 +
> arch/loongarch/kernel/Makefile | 25 +
> arch/loongarch/kernel/access-helper.h | 13 +
> arch/loongarch/kernel/acpi.c | 333 +++++
> arch/loongarch/kernel/asm-offsets.c | 264 ++++
> arch/loongarch/kernel/cacheinfo.c | 122 ++
> arch/loongarch/kernel/cpu-probe.c | 292 ++++
> arch/loongarch/kernel/dma.c | 40 +
> arch/loongarch/kernel/efi.c | 72 +
> arch/loongarch/kernel/elf.c | 30 +
> arch/loongarch/kernel/entry.S | 89 ++
> arch/loongarch/kernel/env.c | 101 ++
> arch/loongarch/kernel/fpu.S | 261 ++++
> arch/loongarch/kernel/genex.S | 95 ++
> arch/loongarch/kernel/head.S | 98 ++
> arch/loongarch/kernel/idle.c | 16 +
> arch/loongarch/kernel/inst.c | 40 +
> arch/loongarch/kernel/io.c | 94 ++
> arch/loongarch/kernel/irq.c | 88 ++
> arch/loongarch/kernel/mem.c | 64 +
> arch/loongarch/kernel/module-sections.c | 121 ++
> arch/loongarch/kernel/module.c | 375 +++++
> arch/loongarch/kernel/numa.c | 466 ++++++
> arch/loongarch/kernel/proc.c | 127 ++
> arch/loongarch/kernel/process.c | 267 ++++
> arch/loongarch/kernel/ptrace.c | 431 ++++++
> arch/loongarch/kernel/reset.c | 102 ++
> arch/loongarch/kernel/setup.c | 374 +++++
> arch/loongarch/kernel/signal.c | 566 ++++++++
> arch/loongarch/kernel/smp.c | 751 ++++++++++
> arch/loongarch/kernel/switch.S | 35 +
> arch/loongarch/kernel/syscall.c | 63 +
> arch/loongarch/kernel/time.c | 214 +++
> arch/loongarch/kernel/topology.c | 52 +
> arch/loongarch/kernel/traps.c | 725 ++++++++++
> arch/loongarch/kernel/vdso.c | 138 ++
> arch/loongarch/kernel/vmlinux.lds.S | 120 ++
> arch/loongarch/lib/Makefile | 6 +
> arch/loongarch/lib/clear_user.S | 43 +
> arch/loongarch/lib/copy_user.S | 47 +
> arch/loongarch/lib/delay.c | 43 +
> arch/loongarch/lib/dump_tlb.c | 111 ++
> arch/loongarch/mm/Makefile | 9 +
> arch/loongarch/mm/cache.c | 141 ++
> arch/loongarch/mm/extable.c | 22 +
> arch/loongarch/mm/fault.c | 261 ++++
> arch/loongarch/mm/hugetlbpage.c | 87 ++
> arch/loongarch/mm/init.c | 178 +++
> arch/loongarch/mm/ioremap.c | 27 +
> arch/loongarch/mm/maccess.c | 10 +
> arch/loongarch/mm/mmap.c | 125 ++
> arch/loongarch/mm/page.S | 84 ++
> arch/loongarch/mm/pgtable.c | 130 ++
> arch/loongarch/mm/tlb.c | 305 ++++
> arch/loongarch/mm/tlbex.S | 546 +++++++
> arch/loongarch/pci/Makefile | 7 +
> arch/loongarch/vdso/.gitignore | 2 +
> arch/loongarch/vdso/Makefile | 96 ++
> arch/loongarch/vdso/elf.S | 15 +
> arch/loongarch/vdso/gen_vdso_offsets.sh | 13 +
> arch/loongarch/vdso/sigreturn.S | 24 +
> arch/loongarch/vdso/vdso.S | 22 +
> arch/loongarch/vdso/vdso.lds.S | 72 +
> arch/loongarch/vdso/vgettimeofday.c | 25 +
> drivers/gpu/drm/drm_vm.c | 2 +-
> drivers/gpu/drm/ttm/ttm_module.c | 2 +-
> drivers/irqchip/Kconfig | 6 +-
> drivers/irqchip/irq-loongson-liointc.c | 6 +-
> include/drm/drm_cache.h | 8 +
> include/linux/cpuhotplug.h | 1 +
> include/uapi/linux/audit.h | 2 +
> include/uapi/linux/elf-em.h | 1 +
> include/uapi/linux/elf.h | 5 +
> include/uapi/linux/kexec.h | 1 +
> scripts/sorttable.c | 5 +
> scripts/subarch.include | 2 +-
> tools/include/uapi/asm/bitsperlong.h | 2 +
> 204 files changed, 21064 insertions(+), 7 deletions(-)
> create mode 100644 Documentation/loongarch/features.rst
> create mode 100644 Documentation/loongarch/index.rst
> create mode 100644 Documentation/loongarch/introduction.rst
> create mode 100644 Documentation/loongarch/irq-chip-model.rst
> create mode 100644 Documentation/translations/zh_CN/loongarch/features.rst
> create mode 100644 Documentation/translations/zh_CN/loongarch/index.rst
> create mode 100644 Documentation/translations/zh_CN/loongarch/introduction.rst
> create mode 100644
> Documentation/translations/zh_CN/loongarch/irq-chip-model.rst
> create mode 100644 arch/loongarch/Kbuild
> create mode 100644 arch/loongarch/Kconfig
> create mode 100644 arch/loongarch/Kconfig.debug
> create mode 100644 arch/loongarch/Makefile
> create mode 100644 arch/loongarch/boot/.gitignore
> create mode 100644 arch/loongarch/boot/Makefile
> create mode 100644 arch/loongarch/boot/dts/Makefile
> create mode 100644 arch/loongarch/configs/loongson3_defconfig
> create mode 100644 arch/loongarch/include/asm/Kbuild
> create mode 100644 arch/loongarch/include/asm/acenv.h
> create mode 100644 arch/loongarch/include/asm/acpi.h
> create mode 100644 arch/loongarch/include/asm/addrspace.h
> create mode 100644 arch/loongarch/include/asm/asm-offsets.h
> create mode 100644 arch/loongarch/include/asm/asm-prototypes.h
> create mode 100644 arch/loongarch/include/asm/asm.h
> create mode 100644 arch/loongarch/include/asm/asmmacro.h
> create mode 100644 arch/loongarch/include/asm/atomic.h
> create mode 100644 arch/loongarch/include/asm/barrier.h
> create mode 100644 arch/loongarch/include/asm/bitops.h
> create mode 100644 arch/loongarch/include/asm/bitrev.h
> create mode 100644 arch/loongarch/include/asm/bootinfo.h
> create mode 100644 arch/loongarch/include/asm/branch.h
> create mode 100644 arch/loongarch/include/asm/bug.h
> create mode 100644 arch/loongarch/include/asm/cache.h
> create mode 100644 arch/loongarch/include/asm/cacheflush.h
> create mode 100644 arch/loongarch/include/asm/cacheops.h
> create mode 100644 arch/loongarch/include/asm/clocksource.h
> create mode 100644 arch/loongarch/include/asm/cmpxchg.h
> create mode 100644 arch/loongarch/include/asm/compiler.h
> create mode 100644 arch/loongarch/include/asm/cpu-features.h
> create mode 100644 arch/loongarch/include/asm/cpu-info.h
> create mode 100644 arch/loongarch/include/asm/cpu.h
> create mode 100644 arch/loongarch/include/asm/cpufeature.h
> create mode 100644 arch/loongarch/include/asm/delay.h
> create mode 100644 arch/loongarch/include/asm/dma-direct.h
> create mode 100644 arch/loongarch/include/asm/dmi.h
> create mode 100644 arch/loongarch/include/asm/efi.h
> create mode 100644 arch/loongarch/include/asm/elf.h
> create mode 100644 arch/loongarch/include/asm/entry-common.h
> create mode 100644 arch/loongarch/include/asm/exec.h
> create mode 100644 arch/loongarch/include/asm/fb.h
> create mode 100644 arch/loongarch/include/asm/fixmap.h
> create mode 100644 arch/loongarch/include/asm/fpregdef.h
> create mode 100644 arch/loongarch/include/asm/fpu.h
> create mode 100644 arch/loongarch/include/asm/futex.h
> create mode 100644 arch/loongarch/include/asm/hardirq.h
> create mode 100644 arch/loongarch/include/asm/hugetlb.h
> create mode 100644 arch/loongarch/include/asm/hw_irq.h
> create mode 100644 arch/loongarch/include/asm/idle.h
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