diff options
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/Kconfig | 1 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/cputime.h | 14 | ||||
| -rw-r--r-- | arch/powerpc/kernel/time.c | 8 |
3 files changed, 5 insertions, 18 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 65fba4c34cd7..c7f120aaa98f 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -160,6 +160,7 @@ config PPC select HAVE_LIVEPATCH if HAVE_DYNAMIC_FTRACE_WITH_REGS select GENERIC_CPU_AUTOPROBE select HAVE_VIRT_CPU_ACCOUNTING + select ARCH_HAS_SCALED_CPUTIME if VIRT_CPU_ACCOUNTING_NATIVE select HAVE_ARCH_HARDENED_USERCOPY select HAVE_KERNEL_GZIP diff --git a/arch/powerpc/include/asm/cputime.h b/arch/powerpc/include/asm/cputime.h index 4f60db074725..aa2e6a34b872 100644 --- a/arch/powerpc/include/asm/cputime.h +++ b/arch/powerpc/include/asm/cputime.h @@ -46,26 +46,12 @@ extern cputime_t cputime_one_jiffy; * Convert cputime <-> jiffies */ extern u64 __cputime_jiffies_factor; -DECLARE_PER_CPU(unsigned long, cputime_last_delta); -DECLARE_PER_CPU(unsigned long, cputime_scaled_last_delta); static inline unsigned long cputime_to_jiffies(const cputime_t ct) { return mulhdu((__force u64) ct, __cputime_jiffies_factor); } -/* Estimate the scaled cputime by scaling the real cputime based on - * the last scaled to real ratio */ -static inline cputime_t cputime_to_scaled(const cputime_t ct) -{ - if (cpu_has_feature(CPU_FTR_SPURR) && - __this_cpu_read(cputime_last_delta)) - return (__force u64) ct * - __this_cpu_read(cputime_scaled_last_delta) / - __this_cpu_read(cputime_last_delta); - return ct; -} - static inline cputime_t jiffies_to_cputime(const unsigned long jif) { u64 ct; diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c index bc3f7d0d7b79..be9751f1cb2a 100644 --- a/arch/powerpc/kernel/time.c +++ b/arch/powerpc/kernel/time.c @@ -164,8 +164,6 @@ u64 __cputime_sec_factor; EXPORT_SYMBOL(__cputime_sec_factor); u64 __cputime_clockt_factor; EXPORT_SYMBOL(__cputime_clockt_factor); -DEFINE_PER_CPU(unsigned long, cputime_last_delta); -DEFINE_PER_CPU(unsigned long, cputime_scaled_last_delta); cputime_t cputime_one_jiffy; @@ -360,7 +358,8 @@ void vtime_account_system(struct task_struct *tsk) unsigned long delta, sys_scaled, stolen; delta = vtime_delta(tsk, &sys_scaled, &stolen); - account_system_time(tsk, 0, delta, sys_scaled); + account_system_time(tsk, 0, delta); + tsk->stimescaled += sys_scaled; if (stolen) account_steal_time(stolen); } @@ -393,7 +392,8 @@ void vtime_account_user(struct task_struct *tsk) acct->user_time = 0; acct->user_time_scaled = 0; acct->utime_sspurr = 0; - account_user_time(tsk, utime, utimescaled); + account_user_time(tsk, utime); + tsk->utimescaled += utimescaled; } #ifdef CONFIG_PPC32 |