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| author | Jens Axboe <axboe@fb.com> | 2014-09-11 19:31:18 +0400 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2014-09-11 19:31:18 +0400 |
| commit | b207892b061da7608878e273ae22ba9bf9be264b (patch) | |
| tree | 51daa46b89b83cad422941f52110b19571b85b79 /arch/arm/include/asm/smp_plat.h | |
| parent | 018a17bdc8658ad448497c84d4ba21b6985820ec (diff) | |
| parent | a516440542afcb9647f88d12c35640baf02d07ea (diff) | |
| download | linux-b207892b061da7608878e273ae22ba9bf9be264b.tar.xz | |
Merge branch 'for-linus' into for-3.18/core
A bit of churn on the for-linus side that would be nice to have
in the core bits for 3.18, so pull it in to catch us up and make
forward progress easier.
Signed-off-by: Jens Axboe <axboe@fb.com>
Conflicts:
block/scsi_ioctl.c
Diffstat (limited to 'arch/arm/include/asm/smp_plat.h')
| -rw-r--r-- | arch/arm/include/asm/smp_plat.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/arm/include/asm/smp_plat.h b/arch/arm/include/asm/smp_plat.h index a252c0bfacf5..0ad7d490ee6f 100644 --- a/arch/arm/include/asm/smp_plat.h +++ b/arch/arm/include/asm/smp_plat.h @@ -8,6 +8,7 @@ #include <linux/cpumask.h> #include <linux/err.h> +#include <asm/cpu.h> #include <asm/cputype.h> /* @@ -25,6 +26,20 @@ static inline bool is_smp(void) #endif } +/** + * smp_cpuid_part() - return part id for a given cpu + * @cpu: logical cpu id. + * + * Return: part id of logical cpu passed as argument. + */ +static inline unsigned int smp_cpuid_part(int cpu) +{ + struct cpuinfo_arm *cpu_info = &per_cpu(cpu_data, cpu); + + return is_smp() ? cpu_info->cpuid & ARM_CPU_PART_MASK : + read_cpuid_part(); +} + /* all SMP configurations have the extended CPUID registers */ #ifndef CONFIG_MMU #define tlb_ops_need_broadcast() 0 |