On Tue, Jun 21, 2016 at 12:11:44PM -0500, Jeremy Linton wrote:
> It is helpful if we can read the cpuid/midr of other CPUs
> in the system independent of arm/arm64.
>
> Signed-off-by: Jeremy Linton <jeremy.linton@xxxxxxx>
> ---
> arch/arm/include/asm/cputype.h | 6 +++++-
> arch/arm64/include/asm/cputype.h | 4 ++++
> 2 files changed, 9 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm/include/asm/cputype.h b/arch/arm/include/asm/cputype.h
> index 1ee94c7..e391b67 100644
> --- a/arch/arm/include/asm/cputype.h
> +++ b/arch/arm/include/asm/cputype.h
> @@ -81,6 +81,8 @@
> #define ARM_CPU_XSCALE_ARCH_V2 0x4000
> #define ARM_CPU_XSCALE_ARCH_V3 0x6000
>
> +#define ARM_PARTNUM(cpuid_id) (cpuid_id & ARM_CPU_PART_MASK)
> +
> extern unsigned int processor_id;
>
> #ifdef CONFIG_CPU_CP15
> @@ -180,7 +182,7 @@ static inline unsigned int __attribute_const__ read_cpuid_implementor(void)
> */
> static inline unsigned int __attribute_const__ read_cpuid_part(void)
> {
> - return read_cpuid_id() & ARM_CPU_PART_MASK;
> + return ARM_PARTNUM(read_cpuid_id());
I don't understand why you need to make this change.
Will
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