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2023-09-11Documentation: Drop IA64 from feature descriptionsArd Biesheuvel1-1/+0
Itanium (IA64) is going away, so drop it from the kernel feature documentation. Signed-off-by: Ard Biesheuvel <[email protected]>
2023-06-29LoongArch: Add jump-label implementationYouling Tang1-1/+1
Add support for jump labels based on the ARM64 version. Acked-by: Peter Zijlstra (Intel) <[email protected]> Signed-off-by: Youling Tang <[email protected]> Signed-off-by: Huacai Chen <[email protected]>
2022-12-05Documentation/features: Use loongarch instead of loongTiezhu Yang1-1/+1
The official arch name is LoongArch [1], we should use small letter loongarch instead of loong in Documentation/features, just use the features-refresh.sh to refresh all the related files. [1] https://www.kernel.org/doc/html/latest/loongarch/index.html Fixes: 5860800e8696 ("Documentation/features: Update the arch support status files") Signed-off-by: Tiezhu Yang <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jonathan Corbet <[email protected]>
2022-12-03Documentation/features: Update feature lists for 6.1Wei Li1-1/+1
Run the refresh script to document the recent feature additions on loong, um and csky as of v6.1-rc7. Signed-off-by: Wei Li <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jonathan Corbet <[email protected]>
2022-06-09Documentation/features: Update the arch support status filesZheng Zengkai1-0/+1
The arch support status files don't match reality as of v5.19-rc1, use the features-refresh.sh to refresh all the arch-support.txt files in place. The main effect is to add entries for the new loong architecture. Signed-off-by: Zheng Zengkai <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jonathan Corbet <[email protected]>
2022-04-04Merge branch 'remove-h8300' of git://git.infradead.org/users/hch/misc into ↵Arnd Bergmann1-1/+0
asm-generic * 'remove-h8300' of git://git.infradead.org/users/hch/misc: remove the h8300 architecture This is clearly the least actively maintained architecture we have at the moment, and probably the least useful. It is now the only one that does not support MMUs at all, and most of the boards only support 4MB of RAM, out of which the defconfig kernel needs more than half just for .text/.data. Guenter Roeck did the original patch to remove the architecture in 2013 after it had already been obsolete for a while, and Yoshinori Sato brought it back in a much more modern form in 2015. Looking at the git history since the reinstantiation, it's clear that almost all commits in the tree are build fixes or cross-architecture cleanups: $ git log --no-merges --format=%an v4.5.. arch/h8300/ | sort | uniq -c | sort -rn | head -n 12 25 Masahiro Yamada 18 Christoph Hellwig 14 Mike Rapoport 9 Arnd Bergmann 8 Mark Rutland 7 Peter Zijlstra 6 Kees Cook 6 Ingo Molnar 6 Al Viro 5 Randy Dunlap 4 Yury Norov Signed-off-by: Arnd Bergmann <[email protected]>
2022-03-07nds32: Remove the architectureAlan Kao1-1/+0
The nds32 architecture, also known as AndeStar V3, is a custom 32-bit RISC target designed by Andes Technologies. Support was added to the kernel in 2016 as the replacement RISC-V based V5 processors were already announced, and maintained by (current or former) Andes employees. As explained by Alan Kao, new customers are now all using RISC-V, and all known nds32 users are already on longterm stable kernels provided by Andes, with no development work going into mainline support any more. While the port is still in a reasonably good shape, it only gets worse over time without active maintainers, so it seems best to remove it before it becomes unusable. As always, if it turns out that there are mainline users after all, and they volunteer to maintain the port in the future, the removal can be reverted. Link: https://lore.kernel.org/linux-mm/[email protected]/ Link: https://lore.kernel.org/lkml/[email protected]/ Link: https://www.andestech.com/en/products-solutions/andestar-architecture/ Signed-off-by: Alan Kao <[email protected]> [arnd: rewrite changelog to provide more background] Signed-off-by: Arnd Bergmann <[email protected]>
2022-02-23remove the h8300 architectureChristoph Hellwig1-1/+0
Signed-off-by: Christoph Hellwig <[email protected]>
2021-02-25Documentation: features: remove c6x referencesArnd Bergmann1-1/+0
The references to arch/c6x are obsolete now that the architecture is gone. Remove them. Signed-off-by: Arnd Bergmann <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jonathan Corbet <[email protected]>
2020-08-07Merge tag 'riscv-for-linus-5.9-mw0' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull RISC-V updates from Palmer Dabbelt: "We have a lot of new kernel features for this merge window: - ARCH_SUPPORTS_ATOMIC_RMW, to allow OSQ locks to be enabled - The ability to enable NO_HZ_FULL - Support for enabling kcov, kmemleak, stack protector, and VM debugging - JUMP_LABEL support There are also a handful of cleanups" * tag 'riscv-for-linus-5.9-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (24 commits) riscv: disable stack-protector for vDSO RISC-V: Fix build warning for smpboot.c riscv: fix build warning of mm/pageattr riscv: Fix build warning for mm/init RISC-V: Setup exception vector early riscv: Select ARCH_HAS_DEBUG_VM_PGTABLE riscv: Use generic pgprot_* macros from <linux/pgtable.h> mm: pgtable: Make generic pgprot_* macros available for no-MMU riscv: Cleanup unnecessary define in asm-offset.c riscv: Add jump-label implementation riscv: Support R_RISCV_ADD64 and R_RISCV_SUB64 relocs Replace HTTP links with HTTPS ones: RISC-V riscv: Add STACKPROTECTOR supported riscv: Fix typo in asm/hwcap.h uapi header riscv: Add kmemleak support riscv: Allow building with kcov coverage riscv: Enable context tracking riscv: Support irq_work via self IPIs riscv: Enable LOCKDEP_SUPPORT & fixup TRACE_IRQFLAGS_SUPPORT riscv: Fixup lockdep_assert_held with wrong param cpu_running ...
2020-07-30riscv: Add jump-label implementationEmil Renner Berthing1-1/+1
Add jump-label implementation based on the ARM64 version and add CONFIG_JUMP_LABEL=y to the defconfigs. Signed-off-by: Emil Renner Berthing <[email protected]> Reviewed-by: Björn Töpel <[email protected]> Tested-by: Björn Töpel <[email protected]> Signed-off-by: Palmer Dabbelt <[email protected]>
2020-07-01arch: remove unicore32 portMike Rapoport1-1/+0
The unicore32 port do not seem maintained for a long time now, there is no upstream toolchain that can create unicore32 binaries and all the links to prebuilt toolchains for unicore32 are dead. Even compilers that were available are not supported by the kernel anymore. Guenter Roeck says: I have stopped building unicore32 images since v4.19 since there is no available compiler that is still supported by the kernel. I am surprised that support for it has not been removed from the kernel. Remove unicore32 port. Signed-off-by: Mike Rapoport <[email protected]> Acked-by: Arnd Bergmann <[email protected]> Acked-by: Guenter Roeck <[email protected]>
2020-01-13ARC: update feature support for jump-labelsVineet Gupta1-1/+1
ARC jum-label support was added in 5.5rc1 but we missed updating the feature list Signed-off-by: Vineet Gupta <[email protected]>
2019-08-03parisc: Update feature listSven Schnelle1-1/+1
Add jump labels to the list of supported features. Signed-off-by: Sven Schnelle <[email protected]> Signed-off-by: Helge Deller <[email protected]>
2019-01-07Documentation/features: Add csky kernel featuresGuo Ren1-0/+1
core/ cBPF-JIT : TODO | core/ eBPF-JIT : TODO | core/ generic-idle-thread : ok | core/ jump-labels : TODO | core/ tracehook : ok | debug/ KASAN : TODO | debug/ gcov-profile-all : TODO | debug/ kgdb : TODO | debug/ kprobes-on-ftrace : TODO | debug/ kprobes : TODO | debug/ kretprobes : TODO | debug/ optprobes : TODO | debug/ stackprotector : TODO | debug/ uprobes : TODO | debug/ user-ret-profiler : TODO | io/ dma-contiguous : ok | locking/ cmpxchg-local : TODO | locking/ lockdep : TODO | locking/ queued-rwlocks : ok | locking/ queued-spinlocks : TODO | locking/ rwsem-optimized : TODO | perf/ kprobes-event : TODO | perf/ perf-regs : TODO | perf/ perf-stackdump : TODO | sched/ membarrier-sync-core : TODO | sched/ numa-balancing : .. | seccomp/ seccomp-filter : TODO | time/ arch-tick-broadcast : TODO | time/ clockevents : ok | time/ context-tracking : TODO | time/ irq-time-acct : TODO | time/ modern-timekeeping : ok | time/ virt-cpuacct : TODO | vm/ ELF-ASLR : TODO | vm/ PG_uncached : TODO | vm/ THP : .. | vm/ batch-unmap-tlb-flush: TODO | vm/ huge-vmap : TODO | vm/ ioremap_prot : TODO | vm/ numa-memblock : .. | vm/ pte_special : TODO | Signed-off-by: Guo Ren <[email protected]> Cc: Arnd Bergmann <[email protected]>
2018-12-20xtensa: implement jump_label supportMax Filippov1-1/+1
Use 3-byte 'nop' and 'j' instructions that are always present. Don't let assembler mark a spot right after patchable 'j' instruction as unreachable and later put literals or padding bytes there. Add separate implementations of patch_text for SMP and UP cases, avoiding use of atomics on UP. Signed-off-by: Max Filippov <[email protected]>
2018-05-08Documentation/features: Refresh the arch support status files in placeAndrea Parri1-0/+2
Now that the script 'features-refresh.sh' is available, uses this script to refresh all the arch-support.txt files in place. Signed-off-by: Andrea Parri <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jonathan Corbet <[email protected]> Cc: Andrew Morton <[email protected]> Signed-off-by: Jonathan Corbet <[email protected]>
2018-03-26Documentation: arch-support: remove obsolete architecturesArnd Bergmann1-6/+0
A number of architecture ports are obsolete and getting dropped, so we no longer want to track the respective features. We already removed the lines for metag and mn10300, this does the same edits for all the others. For the remaining 21 architectures, this shows how many are known to implement each given feature: 19 time/modern-timekeeping/arch-support.txt 19 time/clockevents/arch-support.txt 15 core/tracehook/arch-support.txt 14 core/generic-idle-thread/arch-support.txt 13 locking/lockdep/arch-support.txt 12 io/dma-api-debug/arch-support.txt 11 debug/kgdb/arch-support.txt 10 time/virt-cpuacct/arch-support.txt 9 debug/kretprobes/arch-support.txt 9 debug/kprobes/arch-support.txt 8 vm/THP/arch-support.txt 8 vm/pte_special/arch-support.txt 8 vm/numa-memblock/arch-support.txt 8 io/sg-chain/arch-support.txt 7 perf/kprobes-event/arch-support.txt 7 locking/rwsem-optimized/arch-support.txt 7 debug/gcov-profile-all/arch-support.txt 7 core/jump-labels/arch-support.txt 7 core/BPF-JIT/arch-support.txt 6 vm/ELF-ASLR/arch-support.txt 6 time/context-tracking/arch-support.txt 6 seccomp/seccomp-filter/arch-support.txt 6 debug/stackprotector/arch-support.txt 5 time/irq-time-acct/arch-support.txt 5 io/dma-contiguous/arch-support.txt 5 debug/uprobes/arch-support.txt 4 vm/ioremap_prot/arch-support.txt 4 time/arch-tick-broadcast/arch-support.txt 4 perf/perf-stackdump/arch-support.txt 4 perf/perf-regs/arch-support.txt 3 debug/KASAN/arch-support.txt 2 vm/PG_uncached/arch-support.txt 2 vm/huge-vmap/arch-support.txt 2 sched/numa-balancing/arch-support.txt 2 sched/membarrier-sync-core/arch-support.txt 2 locking/cmpxchg-local/arch-support.txt 2 debug/optprobes/arch-support.txt 2 debug/kprobes-on-ftrace/arch-support.txt 1 vm/TLB/arch-support.txt 1 locking/queued-spinlocks/arch-support.txt 1 locking/queued-rwlocks/arch-support.txt 1 debug/user-ret-profiler/arch-support.txt 0 lib/strncasecmp/arch-support.txt Note that the list does not include riscv or nds32 yet, these still need to be added. Signed-off-by: Arnd Bergmann <[email protected]>
2018-03-09mn10300: Remove the architectureDavid Howells1-1/+0
Remove the MN10300 arch as the hardware is defunct. Suggested-by: Arnd Bergmann <[email protected]> Signed-off-by: David Howells <[email protected]> cc: Masahiro Yamada <[email protected]> cc: [email protected] Signed-off-by: Arnd Bergmann <[email protected]>
2018-02-22docs: Remove remaining references to metagJames Hogan1-1/+0
Remove any remaining references to the Meta architecture in Documentation/, primarily from Documentation/features/. Signed-off-by: James Hogan <[email protected]> Cc: Jonathan Corbet <[email protected]> Cc: [email protected] Cc: [email protected]
2017-05-01docs: remove all references to AVR32 architectureHans-Christian Noren Egtvedt1-1/+0
The AVR32 architecture support has been removed from the Linux kernel, hence remove all references to it from Documentation. Signed-off-by: Hans-Christian Noren Egtvedt <[email protected]> Signed-off-by: Håvard Skinnemoen <[email protected]> Signed-off-by: Nicolas Ferre <[email protected]> Acked-by: Andy Shevchenko <[email protected]> Acked-by: Boris Brezillon <[email protected]>
2015-06-03Documentation/features/core: Add feature description and arch support status ↵Ingo Molnar1-0/+40
file for 'jump-labels' Cc: <[email protected]> Cc: <[email protected]> Cc: <[email protected]> Cc: Andrew Morton <[email protected]> Cc: H. Peter Anvin <[email protected]> Cc: Jonathan Corbet <[email protected]> Cc: Josh Triplett <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Gleixner <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
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