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Diffstat (limited to 'arch/x86/events/amd/lbr.c')
-rw-r--r--arch/x86/events/amd/lbr.c13
1 files changed, 1 insertions, 12 deletions
diff --git a/arch/x86/events/amd/lbr.c b/arch/x86/events/amd/lbr.c
index 5149830c7c..19c7b76e21 100644
--- a/arch/x86/events/amd/lbr.c
+++ b/arch/x86/events/amd/lbr.c
@@ -310,10 +310,6 @@ int amd_pmu_lbr_hw_config(struct perf_event *event)
{
int ret = 0;
- /* LBR is not recommended in counting mode */
- if (!is_sampling_event(event))
- return -EINVAL;
-
ret = amd_pmu_lbr_setup_filter(event);
if (!ret)
event->attach_state |= PERF_ATTACH_SCHED_CB;
@@ -414,18 +410,11 @@ void amd_pmu_lbr_enable_all(void)
void amd_pmu_lbr_disable_all(void)
{
struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
- u64 dbg_ctl, dbg_extn_cfg;
if (!cpuc->lbr_users || !x86_pmu.lbr_nr)
return;
- rdmsrl(MSR_AMD_DBG_EXTN_CFG, dbg_extn_cfg);
- wrmsrl(MSR_AMD_DBG_EXTN_CFG, dbg_extn_cfg & ~DBG_EXTN_CFG_LBRV2EN);
-
- if (cpu_feature_enabled(X86_FEATURE_AMD_LBR_PMC_FREEZE)) {
- rdmsrl(MSR_IA32_DEBUGCTLMSR, dbg_ctl);
- wrmsrl(MSR_IA32_DEBUGCTLMSR, dbg_ctl & ~DEBUGCTLMSR_FREEZE_LBRS_ON_PMI);
- }
+ __amd_pmu_lbr_disable();
}
__init int amd_pmu_lbr_init(void)