diff options
Diffstat (limited to 'arch/powerpc/include/asm/idle.h')
| -rw-r--r-- | arch/powerpc/include/asm/idle.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/idle.h b/arch/powerpc/include/asm/idle.h index 0efb25071d87..accd1f50085a 100644 --- a/arch/powerpc/include/asm/idle.h +++ b/arch/powerpc/include/asm/idle.h @@ -57,5 +57,37 @@ static inline void pseries_idle_epilog(void) ppc64_runlatch_on(); } +static inline u64 read_this_idle_purr(void) +{ + /* + * If we are reading from an idle context, update the + * idle-purr cycles corresponding to the last idle period. + * Since the idle context is not yet over, take a fresh + * snapshot of the idle-purr. + */ + if (unlikely(get_lppaca()->idle == 1)) { + update_idle_purr_accounting(); + snapshot_purr_idle_entry(); + } + + return be64_to_cpu(get_lppaca()->wait_state_cycles); +} + +static inline u64 read_this_idle_spurr(void) +{ + /* + * If we are reading from an idle context, update the + * idle-spurr cycles corresponding to the last idle period. + * Since the idle context is not yet over, take a fresh + * snapshot of the idle-spurr. + */ + if (get_lppaca()->idle == 1) { + update_idle_spurr_accounting(); + snapshot_spurr_idle_entry(); + } + + return *this_cpu_ptr(&idle_spurr_cycles); +} + #endif /* CONFIG_PPC_PSERIES */ #endif |