kernel/linux.git/arch/mips/lib, branch v6.12.80

mips: implement xor_unlock_is_negative_byte

2023-10-18T21:34:17+00:00

Inspired by the mips test_and_change_bit(), this will surely be more efficient than the generic one defined in filemap.c Link: https://lkml.kernel.org/r/20231004165317.1061855-11-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) Cc: Albert Ou Cc: Alexander Gordeev Cc: Andreas Dilger Cc: Christian Borntraeger Cc: Christophe Leroy Cc: Geert Uytterhoeven Cc: Heiko Carstens Cc: Ivan Kokshaysky Cc: Matt Turner Cc: Michael Ellerman Cc: Nicholas Piggin Cc: Palmer Dabbelt Cc: Paul Walmsley Cc: Richard Henderson Cc: Sven Schnelle Cc: "Theodore Ts'o" Cc: Thomas Bogendoerfer Cc: Vasily Gorbik Signed-off-by: Andrew Morton

mips: replace #include with #include

2023-08-15T08:22:23+00:00

Commit ddb5cdbafaaa ("kbuild: generate KSYMTAB entries by modpost") deprecated , which is now a wrapper of . Replace #include with #include . After all the lines are converted, and will be removed. Signed-off-by: Masahiro Yamada Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Thomas Bogendoerfer

MIPS: Simplify bswapdi2() and bswapsi2()

2022-09-30T14:50:00+00:00

Use macro definitions ___constant_swab64 and ___constant_swab32 to simplify __bswapdi2() and __bswapsi2(). Signed-off-by: Tiezhu Yang Signed-off-by: Thomas Bogendoerfer

MIPS: Silence missing prototype warning

2022-09-30T14:49:49+00:00

Silence the following two warnings when make W=1: CC arch/mips/lib/bswapsi.o arch/mips/lib/bswapsi.c:5:22: warning: no previous prototype for '__bswapsi2' [-Wmissing-prototypes] unsigned int notrace __bswapsi2(unsigned int u) ^~~~~~~~~~ CC arch/mips/lib/bswapdi.o arch/mips/lib/bswapdi.c:5:28: warning: no previous prototype for '__bswapdi2' [-Wmissing-prototypes] unsigned long long notrace __bswapdi2(unsigned long long u) ^~~~~~~~~~ AR arch/mips/lib/built-in.a Reported-by: kernel test robot Signed-off-by: Tiezhu Yang Signed-off-by: Thomas Bogendoerfer

MIPS: Remove VR41xx support

2022-07-14T09:52:29+00:00

No (active) developer owns this hardware, so let's remove Linux support. Signed-off-by: Thomas Bogendoerfer

MIPS: Only use current_stack_pointer on GCC

2022-03-14T14:02:53+00:00

Unfortunately, Clang did not have support for "sp" as a global register definition, and was crashing after the addition of current_stack_pointer. This has been fixed in Clang 14, but earlier Clang versions need to avoid this code, so add a versioned test and revert back to the open-coded asm instances. Fixes Clang build error: fatal error: error in backend: Invalid register name global variable Fixes: 200ed341b864 ("mips: Implement "current_stack_pointer"") Reported-by: Nathan Chancellor Reviewed-by: Nathan Chancellor Link: https://lore.kernel.org/lkml/YikTQRql+il3HbrK@dev-arch.thelio-3990X Cc: Thomas Bogendoerfer Cc: Marc Zyngier Cc: Guenter Roeck Cc: Yanteng Si Cc: linux-mips@vger.kernel.org Signed-off-by: Kees Cook Reviewed-by: Nick Desaulniers Signed-off-by: Thomas Bogendoerfer

mips: Implement "current_stack_pointer"

2022-03-01T15:57:55+00:00

To follow the existing per-arch conventions replace open-coded uses of asm "sp" as "current_stack_pointer". This will let it be used in non-arch places (like HARDENED_USERCOPY). Cc: Thomas Bogendoerfer Cc: Marc Zyngier Cc: Guenter Roeck Cc: Mark Rutland Cc: Yanteng Si Cc: linux-mips@vger.kernel.org Signed-off-by: Kees Cook Signed-off-by: Thomas Bogendoerfer

MIPS: Remove TX39XX support

2022-03-01T09:07:22+00:00

No (active) developer owns this hardware, so let's remove Linux support. Signed-off-by: Thomas Bogendoerfer Acked-by: Guenter Roeck Reviewed-by: Geert Uytterhoeven Tested-by: Geert Uytterhoeven Acked-by: Atsushi Nemoto

MIPS: remove asm/war.h

2022-02-22T08:35:49+00:00

The major part for workaround handling has already moved to config options. This change replaces the remaining defines by already available config options and gets rid of war.h Signed-off-by: Thomas Bogendoerfer

MIPS: Fix build error due to PTR used in more places

2022-01-27T08:04:19+00:00

Use PTR_WD instead of PTR to avoid clashes with other parts. Signed-off-by: Thomas Bogendoerfer