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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]>
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]>
2022-06-09Documentation/features: Update the arch support status filesZheng Zengkai1-1/+2
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]>
2020-07-01arch: 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]>
2020-05-25Documentation/features: Refresh the arch support status filesBjörn Töpel1-1/+1
I was manually editing the arch-support.txt for eBPF-JIT, when I realized the refresh script [1] has not been run for a while. Let's fix that, so that the entries are more up-to-date. [1] Documentation/features/scripts/features-refresh.sh Signed-off-by: Björn Töpel <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jonathan Corbet <[email protected]>
2020-02-19documentation: vm: Advertise support for pte_special in riscvAlexandre Ghiti1-1/+1
Risc-V architecture has actually supported pte_special since its merge upstream, simply add this info to the documentation. Signed-off-by: Alexandre Ghiti <[email protected]> Signed-off-by: Jonathan Corbet <[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]>
2018-06-07mm: introduce ARCH_HAS_PTE_SPECIALLaurent Dufour1-1/+1
Currently the PTE special supports is turned on in per architecture header files. Most of the time, it is defined in arch/*/include/asm/pgtable.h depending or not on some other per architecture static definition. This patch introduce a new configuration variable to manage this directly in the Kconfig files. It would later replace __HAVE_ARCH_PTE_SPECIAL. Here notes for some architecture where the definition of __HAVE_ARCH_PTE_SPECIAL is not obvious: arm __HAVE_ARCH_PTE_SPECIAL which is currently defined in arch/arm/include/asm/pgtable-3level.h which is included by arch/arm/include/asm/pgtable.h when CONFIG_ARM_LPAE is set. So select ARCH_HAS_PTE_SPECIAL if ARM_LPAE. powerpc __HAVE_ARCH_PTE_SPECIAL is defined in 2 files: - arch/powerpc/include/asm/book3s/64/pgtable.h - arch/powerpc/include/asm/pte-common.h The first one is included if (PPC_BOOK3S & PPC64) while the second is included in all the other cases. So select ARCH_HAS_PTE_SPECIAL all the time. sparc: __HAVE_ARCH_PTE_SPECIAL is defined if defined(__sparc__) && defined(__arch64__) which are defined through the compiler in sparc/Makefile if !SPARC32 which I assume to be if SPARC64. So select ARCH_HAS_PTE_SPECIAL if SPARC64 There is no functional change introduced by this patch. Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Laurent Dufour <[email protected]> Suggested-by: Jerome Glisse <[email protected]> Reviewed-by: Jerome Glisse <[email protected]> Acked-by: David Rientjes <[email protected]> Cc: Michal Hocko <[email protected]> Cc: "Aneesh Kumar K . V" <[email protected]> Cc: Michael Ellerman <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Jonathan Corbet <[email protected]> Cc: Catalin Marinas <[email protected]> Cc: Will Deacon <[email protected]> Cc: Yoshinori Sato <[email protected]> Cc: Rich Felker <[email protected]> Cc: David S. Miller <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Vineet Gupta <[email protected]> Cc: Palmer Dabbelt <[email protected]> Cc: Albert Ou <[email protected]> Cc: Martin Schwidefsky <[email protected]> Cc: Heiko Carstens <[email protected]> Cc: David Rientjes <[email protected]> Cc: Robin Murphy <[email protected]> Cc: Christophe LEROY <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2018-05-10Revert "Documentation/features/vm: Remove arch support status file for ↵Jonathan Corbet1-0/+33
'pte_special'" The removal of this file appears to have been premature; it's not a feature enabled by Kconfig, but it's a arch-level feature regardless. Put it back for now until some happy future time when we decide how we really want to document such features. This reverts commit 2bef69a385b4c1c01d8abae0aa035f0ffa051f07. Signed-off-by: Jonathan Corbet <[email protected]>
2018-05-08Documentation/features/vm: Remove arch support status file for 'pte_special'Andrea Parri1-33/+0
Suggested-by: Ingo Molnar <[email protected]> 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]>
2018-05-08Documentation/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]>
2015-10-09Documentation/features/vm: pte_special now supported by ARCVineet Gupta1-1/+1
Signed-off-by: Vineet Gupta <[email protected]>
2015-06-03Documentation/features/vm: Add feature description and arch support status ↵Ingo Molnar1-0/+40
file for 'pte_special' 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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