diff options
Diffstat (limited to 'arch/x86/kernel/cpu/resctrl/pseudo_lock.c')
| -rw-r--r-- | arch/x86/kernel/cpu/resctrl/pseudo_lock.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/arch/x86/kernel/cpu/resctrl/pseudo_lock.c b/arch/x86/kernel/cpu/resctrl/pseudo_lock.c index de580eca3363..d7caab0409b6 100644 --- a/arch/x86/kernel/cpu/resctrl/pseudo_lock.c +++ b/arch/x86/kernel/cpu/resctrl/pseudo_lock.c @@ -241,16 +241,16 @@ int resctrl_arch_pseudo_lock_fn(void *_plr) int resctrl_arch_measure_cycles_lat_fn(void *_plr) { struct pseudo_lock_region *plr = _plr; - u32 saved_low, saved_high; unsigned long i; u64 start, end; void *mem_r; + u64 saved; local_irq_disable(); /* * Disable hardware prefetchers. */ - rdmsr(MSR_MISC_FEATURE_CONTROL, saved_low, saved_high); + rdmsrq(MSR_MISC_FEATURE_CONTROL, saved); wrmsrq(MSR_MISC_FEATURE_CONTROL, prefetch_disable_bits); mem_r = READ_ONCE(plr->kmem); /* @@ -267,7 +267,7 @@ int resctrl_arch_measure_cycles_lat_fn(void *_plr) end = rdtsc_ordered(); trace_pseudo_lock_mem_latency((u32)(end - start)); } - wrmsr(MSR_MISC_FEATURE_CONTROL, saved_low, saved_high); + wrmsrq(MSR_MISC_FEATURE_CONTROL, saved); local_irq_enable(); plr->thread_done = 1; wake_up_interruptible(&plr->lock_thread_wq); @@ -312,11 +312,11 @@ static int measure_residency_fn(struct perf_event_attr *miss_attr, u64 hits_before = 0, hits_after = 0, miss_before = 0, miss_after = 0; struct perf_event *miss_event, *hit_event; int hit_pmcnum, miss_pmcnum; - u32 saved_low, saved_high; unsigned int line_size; unsigned int size; unsigned long i; void *mem_r; + u64 saved; u64 tmp; miss_event = perf_event_create_kernel_counter(miss_attr, plr->cpu, @@ -346,7 +346,7 @@ static int measure_residency_fn(struct perf_event_attr *miss_attr, /* * Disable hardware prefetchers. */ - rdmsr(MSR_MISC_FEATURE_CONTROL, saved_low, saved_high); + rdmsrq(MSR_MISC_FEATURE_CONTROL, saved); wrmsrq(MSR_MISC_FEATURE_CONTROL, prefetch_disable_bits); /* Initialize rest of local variables */ @@ -405,7 +405,7 @@ static int measure_residency_fn(struct perf_event_attr *miss_attr, */ rmb(); /* Re-enable hardware prefetchers */ - wrmsr(MSR_MISC_FEATURE_CONTROL, saved_low, saved_high); + wrmsrq(MSR_MISC_FEATURE_CONTROL, saved); local_irq_enable(); out_hit: perf_event_release_kernel(hit_event); |