For AMD LBR, use parsed CPUID(0x80000022) instead of a direct CPUID query
and custom perf data types.
Signed-off-by: Ahmed S. Darwish <darwi@linutronix.de>
---
arch/x86/events/amd/lbr.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/arch/x86/events/amd/lbr.c b/arch/x86/events/amd/lbr.c
index 5b437dc8e4ce..e5a16266545f 100644
--- a/arch/x86/events/amd/lbr.c
+++ b/arch/x86/events/amd/lbr.c
@@ -423,14 +423,13 @@ void amd_pmu_lbr_disable_all(void)
__init int amd_pmu_lbr_init(void)
{
- union cpuid_0x80000022_ebx ebx;
+ const struct leaf_0x80000022_0 *l = cpuid_leaf(&boot_cpu_data, 0x80000022);
- if (x86_pmu.version < 2 || !boot_cpu_has(X86_FEATURE_AMD_LBR_V2))
+ if (!l || x86_pmu.version < 2 || !boot_cpu_has(X86_FEATURE_AMD_LBR_V2))
return -EOPNOTSUPP;
/* Set number of entries */
- ebx.full = cpuid_ebx(EXT_PERFMON_DEBUG_FEATURES);
- x86_pmu.lbr_nr = ebx.split.lbr_v2_stack_sz;
+ x86_pmu.lbr_nr = l->lbr_v2_stack_size;
pr_cont("%d-deep LBR, ", x86_pmu.lbr_nr);
--
2.53.0