diff options
| author | Suzuki K. Poulose <suzuki.poulose@arm.com> | 2015-10-19 13:24:52 (GMT) |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2015-10-21 14:35:58 (GMT) |
| commit | 37b01d53ceefa390d6eee7a82f3c156b64951bf3 (patch) | |
| tree | aad84b9e739d08500e50e40d4168656ca4055539 /arch/arm64/include | |
| parent | da8d02d19ffdd201af632c755a473b6df4b3e4cc (diff) | |
| download | linux-37b01d53ceefa390d6eee7a82f3c156b64951bf3.tar.xz | |
arm64/HWCAP: Use system wide safe values
Extend struct arm64_cpu_capabilities to handle the HWCAP detection
and make use of the system wide value of the feature registers for
a reliable set of HWCAPs.
Signed-off-by: Suzuki K. Poulose <suzuki.poulose@arm.com>
Tested-by: Dave Martin <Dave.Martin@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/include')
| -rw-r--r-- | arch/arm64/include/asm/cpufeature.h | 2 | ||||
| -rw-r--r-- | arch/arm64/include/asm/hwcap.h | 8 |
2 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/cpufeature.h b/arch/arm64/include/asm/cpufeature.h index eec584e..ca46210 100644 --- a/arch/arm64/include/asm/cpufeature.h +++ b/arch/arm64/include/asm/cpufeature.h @@ -81,6 +81,8 @@ struct arm64_cpu_capabilities { u32 sys_reg; int field_pos; int min_field_value; + int hwcap_type; + unsigned long hwcap; }; }; }; diff --git a/arch/arm64/include/asm/hwcap.h b/arch/arm64/include/asm/hwcap.h index 0ad7351..400b80b 100644 --- a/arch/arm64/include/asm/hwcap.h +++ b/arch/arm64/include/asm/hwcap.h @@ -52,6 +52,14 @@ extern unsigned int compat_elf_hwcap, compat_elf_hwcap2; #endif +enum { + CAP_HWCAP = 1, +#ifdef CONFIG_COMPAT + CAP_COMPAT_HWCAP, + CAP_COMPAT_HWCAP2, +#endif +}; + extern unsigned long elf_hwcap; #endif #endif |