[adding Russell] On Wed, Nov 09, 2016 at 05:39:49PM -0600, 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 | 2 ++ > arch/arm64/include/asm/cputype.h | 3 +++ > 2 files changed, 5 insertions(+) > > diff --git a/arch/arm/include/asm/cputype.h b/arch/arm/include/asm/cputype.h > index 522b5fe..31fb273 100644 > --- a/arch/arm/include/asm/cputype.h > +++ b/arch/arm/include/asm/cputype.h > @@ -235,6 +235,8 @@ static inline unsigned int __attribute_const__ read_cpuid_mpidr(void) > #define cpu_is_sa1100() (read_cpuid_part() == ARM_CPU_PART_SA1100) > #define cpu_is_sa1110() (read_cpuid_part() == ARM_CPU_PART_SA1110) > > +#define read_specific_cpuid(cpu_num) per_cpu_ptr(&cpu_data, cpu_num)->cpuid > + > /* > * Intel's XScale3 core supports some v6 features (supersections, L2) > * but advertises itself as v5 as it does not support the v6 ISA. For Russell -- are you ok with adding this macro to arch/arm/? It will get used by the CPU PMU driver, which needs a portable (i.e. between arm and arm64) way to convert a logical CPU ID into the MIDR register for that CPU. Thanks, Will -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
