diff options
| author | Eric Biggers <ebiggers@kernel.org> | 2025-11-12 20:55:55 +0300 |
|---|---|---|
| committer | Eric Biggers <ebiggers@kernel.org> | 2025-11-12 20:55:55 +0300 |
| commit | 065f04001081fa48f24dd95f7095d06402756253 (patch) | |
| tree | 8d6eca52ad3838ac751d1bcc677b29c934ca5752 /arch/arm/include/asm/simd.h | |
| parent | 2dbb6f4a25d38fcf7d6c1c682e45a13e6bbe9562 (diff) | |
| parent | f53d18a4e67eacf665e9d60727d508387f84327b (diff) | |
| download | linux-065f04001081fa48f24dd95f7095d06402756253.tar.xz | |
Merge tag 'scoped-ksimd-for-arm-arm64' into libcrypto-fpsimd-on-stack
Pull scoped ksimd API for ARM and arm64 from Ard Biesheuvel:
"Introduce a more strict replacement API for
kernel_neon_begin()/kernel_neon_end() on both ARM and arm64, and
replace occurrences of the latter pair appearing in lib/crypto"
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Diffstat (limited to 'arch/arm/include/asm/simd.h')
| -rw-r--r-- | arch/arm/include/asm/simd.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/arm/include/asm/simd.h b/arch/arm/include/asm/simd.h index be08a8da046f..8549fa8b7253 100644 --- a/arch/arm/include/asm/simd.h +++ b/arch/arm/include/asm/simd.h @@ -2,14 +2,21 @@ #ifndef _ASM_SIMD_H #define _ASM_SIMD_H +#include <linux/cleanup.h> #include <linux/compiler_attributes.h> #include <linux/preempt.h> #include <linux/types.h> +#include <asm/neon.h> + static __must_check inline bool may_use_simd(void) { return IS_ENABLED(CONFIG_KERNEL_MODE_NEON) && !in_hardirq() && !irqs_disabled(); } +DEFINE_LOCK_GUARD_0(ksimd, kernel_neon_begin(), kernel_neon_end()) + +#define scoped_ksimd() scoped_guard(ksimd) + #endif /* _ASM_SIMD_H */ |