diff options
| author | Samuel Holland <samuel.holland@sifive.com> | 2024-03-29 00:18:17 -0700 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2024-05-19 14:36:17 -0700 |
| commit | cb2b7b7de805cd649851fb8f2f36df3b8425682e (patch) | |
| tree | 1f0913ff5dd69b9d7f4b033748f9bda8c9c239cf /arch/arm/include | |
| parent | 6cbd1d6d36c5d8312de99d1dfa3bec40ac840ce0 (diff) | |
| download | linux-cb2b7b7de805cd649851fb8f2f36df3b8425682e.tar.gz linux-cb2b7b7de805cd649851fb8f2f36df3b8425682e.tar.bz2 linux-cb2b7b7de805cd649851fb8f2f36df3b8425682e.zip | |
ARM: implement ARCH_HAS_KERNEL_FPU_SUPPORT
ARM provides an equivalent to the common kernel-mode FPU API, but in a
different header and using different function names. Add a wrapper
header, and export CFLAGS adjustments as found in lib/raid6/Makefile.
[samuel.holland@sifive.com: ARM: do not select ARCH_HAS_KERNEL_FPU_SUPPORT]
Link: https://lkml.kernel.org/r/20240509013727.648600-1-samuel.holland@sifive.com
Link: https://lkml.kernel.org/r/20240329072441.591471-3-samuel.holland@sifive.com
Signed-off-by: Samuel Holland <samuel.holland@sifive.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Christian König <christian.koenig@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Borislav Petkov (AMD) <bp@alien8.de>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Huacai Chen <chenhuacai@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nicolas Schier <nicolas@fjasle.eu>
Cc: Palmer Dabbelt <palmer@rivosinc.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: WANG Xuerui <git@xen0n.name>
Cc: Will Deacon <will@kernel.org>
Cc: Thiago Jung Bauermann <thiago.bauermann@linaro.org>
Cc: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'arch/arm/include')
| -rw-r--r-- | arch/arm/include/asm/fpu.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/arm/include/asm/fpu.h b/arch/arm/include/asm/fpu.h new file mode 100644 index 000000000000..2ae50bdce59b --- /dev/null +++ b/arch/arm/include/asm/fpu.h @@ -0,0 +1,15 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2023 SiFive + */ + +#ifndef __ASM_FPU_H +#define __ASM_FPU_H + +#include <asm/neon.h> + +#define kernel_fpu_available() cpu_has_neon() +#define kernel_fpu_begin() kernel_neon_begin() +#define kernel_fpu_end() kernel_neon_end() + +#endif /* ! __ASM_FPU_H */ |