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| author | Catalin Marinas <catalin.marinas@arm.com> | 2008-11-06 16:23:07 +0300 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2008-11-06 16:23:07 +0300 |
| commit | 2bedbdf4148ebbe48c7a89449ab52e475a788f42 (patch) | |
| tree | 8824fd9f1a87257187972d9395c561e2682d53bf /arch | |
| parent | 4369ae16eec16e6a922d4333da88a58fbc201369 (diff) | |
| download | linux-2bedbdf4148ebbe48c7a89449ab52e475a788f42.tar.xz | |
Add HWCAP_NEON to the ARM hwcap.h file
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/include/asm/hwcap.h | 1 | ||||
| -rw-r--r-- | arch/arm/kernel/setup.c | 1 | ||||
| -rw-r--r-- | arch/arm/vfp/vfpmodule.c | 9 |
3 files changed, 11 insertions, 0 deletions
diff --git a/arch/arm/include/asm/hwcap.h b/arch/arm/include/asm/hwcap.h index 81f4c899a555..bda489f9f017 100644 --- a/arch/arm/include/asm/hwcap.h +++ b/arch/arm/include/asm/hwcap.h @@ -16,6 +16,7 @@ #define HWCAP_IWMMXT 512 #define HWCAP_CRUNCH 1024 #define HWCAP_THUMBEE 2048 +#define HWCAP_NEON 4096 #if defined(__KERNEL__) && !defined(__ASSEMBLY__) /* diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c index 66e1a643ed14..d4dae3e9b294 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -773,6 +773,7 @@ static const char *hwcap_str[] = { "iwmmxt", "crunch", "thumbee", + "neon", NULL }; diff --git a/arch/arm/vfp/vfpmodule.c b/arch/arm/vfp/vfpmodule.c index c0d2c9bb952b..67ca340a7c85 100644 --- a/arch/arm/vfp/vfpmodule.c +++ b/arch/arm/vfp/vfpmodule.c @@ -371,6 +371,15 @@ static int __init vfp_init(void) * in place; report VFP support to userspace. */ elf_hwcap |= HWCAP_VFP; +#ifdef CONFIG_NEON + /* + * Check for the presence of the Advanced SIMD + * load/store instructions, integer and single + * precision floating point operations. + */ + if ((fmrx(MVFR1) & 0x000fff00) == 0x00011100) + elf_hwcap |= HWCAP_NEON; +#endif } return 0; } |