diff options
| author | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2017-08-03 17:23:19 +0100 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2017-08-04 15:00:47 +0100 |
| commit | f960181d5d88ab6c84be8fb5e7f75080c78dfdd1 (patch) | |
| tree | 47d801091ff27a0a1860763fec7a783769c26533 | |
| parent | 16f73eb02d7e1765ccab3d2018e0bd98eb93d973 (diff) | |
arm64: neon: replace generic definition of may_use_simd()
In preparation of modifying the logic that decides whether kernel mode
NEON is allowable, which is required for SVE support, introduce an
implementation of may_use_simd() that reflects the current reality, i.e.,
that SIMD is allowed in any context.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Dave Martin <Dave.Martin@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
| -rw-r--r-- | arch/arm64/include/asm/Kbuild | 1 | ||||
| -rw-r--r-- | arch/arm64/include/asm/simd.h | 23 |
2 files changed, 23 insertions, 1 deletions
diff --git a/arch/arm64/include/asm/Kbuild b/arch/arm64/include/asm/Kbuild index f81c7b685fc6..2326e39d5892 100644 --- a/arch/arm64/include/asm/Kbuild +++ b/arch/arm64/include/asm/Kbuild @@ -20,7 +20,6 @@ generic-y += rwsem.h generic-y += segment.h generic-y += serial.h generic-y += set_memory.h -generic-y += simd.h generic-y += sizes.h generic-y += switch_to.h generic-y += trace_clock.h diff --git a/arch/arm64/include/asm/simd.h b/arch/arm64/include/asm/simd.h new file mode 100644 index 000000000000..96959b52afae --- /dev/null +++ b/arch/arm64/include/asm/simd.h @@ -0,0 +1,23 @@ +/* + * Copyright (C) 2017 Linaro Ltd. <ard.biesheuvel@linaro.org> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + */ + +#ifndef __ASM_SIMD_H +#define __ASM_SIMD_H + +#include <linux/types.h> + +/* + * may_use_simd - whether it is allowable at this time to issue SIMD + * instructions or access the SIMD register file + */ +static __must_check inline bool may_use_simd(void) +{ + return true; +} + +#endif |