kernel/linux.git/arch/mips/include/asm/asm.h, branch v6.12.80

MIPS: Guard some macros with ASSEMBLY in asm.h

2024-04-15T08:22:09+00:00

There are some assembly macros with very generic naming being defined asm.h. They are clashing with other macros from C code. Guard them with __ASSEMBLY__ to prevent futher clashes. Reported-by: Geert Uytterhoeven Link: https://lore.kernel.org/linux-mips/8d78894-dd89-9f4d-52bb-1b873c50be9c@linux-m68k.org/ Signed-off-by: Jiaxun Yang Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Thomas Bogendoerfer

MIPS: Workaround clang inline compat branch issue

2023-02-28T22:09:49+00:00

Clang is unable to handle the situation that a chunk of inline assembly ends with a compat branch instruction and then compiler generates another control transfer instruction immediately after this compat branch. The later instruction will end up in forbidden slot and cause exception. Workaround by add a option to control the use of compact branch. Currently it's selected by CC_IS_CLANG and hopefully we can change it to a version check in future if clang manages to fix it. Fix boot on boston board. Link: https://github.com/llvm/llvm-project/issues/61045 Signed-off-by: Jiaxun Yang Acked-by: Nathan Chancellor Acked-by: Nick Desaulniers 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

MIPS: retire "asm/llsc.h"

2022-01-05T10:16:35+00:00

all that "asm/llsc.h" does is just to help inline asm, which can be stringifyed from "asm/asm.h" +. Since "asm/asm.h" has all we need, retire "asm/llsc.h" +. remove unused header file Inspired-by: Maciej W. Rozycki Signed-off-by: Huang Pei Signed-off-by: Thomas Bogendoerfer

MIPS: rework local_t operation on MIPS64

2022-01-05T09:19:20+00:00

+. remove "asm/war.h" since R10000_LLSC_WAR became a config option +. clean up Suggested-by: Maciej W. Rozycki Signed-off-by: Huang Pei Signed-off-by: Thomas Bogendoerfer

MIPS/asm/printk: Fix build failure caused by printk

2021-07-23T07:25:30+00:00

The commit 337015573718b161 ("printk: Userspace format indexing support") caused the following build failure: arch/mips/kernel/genex.o: In function `handle_mcheck_int': (.text+0x190c): undefined reference to `printk' arch/mips/kernel/genex.o: In function `handle_reserved_int': (.text+0x1c8c): undefined reference to `printk' Fixes: 337015573718b161 ("printk: Userspace format indexing support") Reported-by: Stephen Rothwell Suggested-by: Chris Down Signed-off-by: Petr Mladek Link: https://lore.kernel.org/r/YPbBfdz9srIpI+bb@chrisdown.name

MIPS: properly stop .eh_frame generation

2021-01-15T14:27:54+00:00

Commit 866b6a89c6d1 ("MIPS: Add DWARF unwinding to assembly") added -fno-asynchronous-unwind-tables to KBUILD_CFLAGS to prevent compiler from emitting .eh_frame symbols. However, as MIPS heavily uses CFI, that's not enough. Use the approach taken for x86 (as it also uses CFI) and explicitly put CFI symbols into the .debug_frame section (except for VDSO). This allows us to drop .eh_frame from DISCARDS as it's no longer being generated. Fixes: 866b6a89c6d1 ("MIPS: Add DWARF unwinding to assembly") Suggested-by: Kees Cook Signed-off-by: Alexander Lobakin Reviewed-by: Kees Cook Reviewed-by: Nathan Chancellor Signed-off-by: Thomas Bogendoerfer

MIPS: asm: Rename some macros to avoid build errors

2020-05-07T11:20:05+00:00

Use ASM_ prefix to rename some macros (PANIC and PRINT), in order to avoid build errors (all users are updated as well): 1, PANIC conflicts with drivers/scsi/smartpqi/smartpqi_init.c 2, PRINT conflicts with net/netfilter/nf_conntrack_h323_asn1.c and net/ mac80211/debugfs_sta.c Fixes: d339cd02b888eb8 ("MIPS: Move unaligned load/store helpers to inst.h") Reported-by: kbuild test robot Signed-off-by: Huacai Chen Signed-off-by: Thomas Bogendoerfer

MIPS: Move unaligned load/store helpers to inst.h

2020-04-24T16:18:06+00:00

Move unaligned load/store helpers from unaligned.c to inst.h, then other parts of the kernel can use these helpers. Use __ASSEMBLY__ to guard the definition of "LONG" in asm.h to avoid build error on IPxx platforms. Signed-off-by: Huacai Chen Signed-off-by: Pei Huang Reviewed-by: Jiaxun Yang Signed-off-by: Thomas Bogendoerfer

MIPS: Remove unused PREF, PREFE & PREFX macros

2018-10-16T06:11:14+00:00

asm/asm.h provides PREF(), PREFE() & PREFX() macros which are now entirely unused. Delete the dead code. Signed-off-by: Paul Burton Patchwork: https://patchwork.linux-mips.org/patch/20908/ Cc: linux-mips@linux-mips.org