diff options
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/include/asm/hwcap.h | 2 | ||||
| -rw-r--r-- | arch/arm/kernel/setup.c | 2 | ||||
| -rw-r--r-- | arch/arm/vfp/vfpmodule.c | 12 |
3 files changed, 16 insertions, 0 deletions
diff --git a/arch/arm/include/asm/hwcap.h b/arch/arm/include/asm/hwcap.h index bda489f9f017..f7bd52b1c365 100644 --- a/arch/arm/include/asm/hwcap.h +++ b/arch/arm/include/asm/hwcap.h @@ -17,6 +17,8 @@ #define HWCAP_CRUNCH 1024 #define HWCAP_THUMBEE 2048 #define HWCAP_NEON 4096 +#define HWCAP_VFPv3 8192 +#define HWCAP_VFPv3D16 16384 #if defined(__KERNEL__) && !defined(__ASSEMBLY__) /* diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c index 7049815d66d5..645ec7436681 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -779,6 +779,8 @@ static const char *hwcap_str[] = { "crunch", "thumbee", "neon", + "vfpv3", + "vfpv3d16", NULL }; diff --git a/arch/arm/vfp/vfpmodule.c b/arch/arm/vfp/vfpmodule.c index 7e1239041b39..75457b30d813 100644 --- a/arch/arm/vfp/vfpmodule.c +++ b/arch/arm/vfp/vfpmodule.c @@ -476,6 +476,18 @@ static int __init vfp_init(void) * in place; report VFP support to userspace. */ elf_hwcap |= HWCAP_VFP; +#ifdef CONFIG_VFPv3 + if (VFP_arch >= 3) { + elf_hwcap |= HWCAP_VFPv3; + + /* + * Check for VFPv3 D16. CPUs in this configuration + * only have 16 x 64bit registers. + */ + if (((fmrx(MVFR0) & MVFR0_A_SIMD_MASK)) == 1) + elf_hwcap |= HWCAP_VFPv3D16; + } +#endif #ifdef CONFIG_NEON /* * Check for the presence of the Advanced SIMD |