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arm64/HWCAP: Use system wide safe values

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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>
This commit is contained in:
Suzuki K. Poulose
2015-10-19 14:24:52 +01:00
committed by Catalin Marinas
parent da8d02d19f
commit 37b01d53ce
3 changed files with 101 additions and 72 deletions
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2
arch/arm64/include/asm/cpufeature.h
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@@ -81,6 +81,8 @@ struct arm64_cpu_capabilities {
u32 sys_reg;
int field_pos;
int min_field_value;
int hwcap_type;
unsigned long hwcap;
};
};
};