[PATCH v7 098/120] perf/x86/amd: Use parsed CPUID(0x80000022)

For AMD perf, use parsed CPUID(0x80000022) instead of direct CPUID queries
and custom perf data types.

For the uncore CPU hotplug callbacks, ensure that the correct per-CPU CPUID
table is queried.

Signed-off-by: Ahmed S. Darwish <[email protected]>
---
 arch/x86/events/amd/core.c   |  8 +++-----
 arch/x86/events/amd/uncore.c | 18 +++++++-----------
 2 files changed, 10 insertions(+), 16 deletions(-)

diff --git a/arch/x86/events/amd/core.c b/arch/x86/events/amd/core.c
index d66a357f219d..b070d0be36c4 100644
--- a/arch/x86/events/amd/core.c
+++ b/arch/x86/events/amd/core.c
@@ -1410,7 +1410,7 @@ static const struct attribute_group *amd_attr_update[] = {
 
 static int __init amd_core_pmu_init(void)
 {
-	union cpuid_0x80000022_ebx ebx;
+	const struct leaf_0x80000022_0 *leaf = cpuid_leaf(&boot_cpu_data, 0x80000022);
 	u64 even_ctr_mask = 0ULL;
 	int i;
 
@@ -1430,14 +1430,12 @@ static int __init amd_core_pmu_init(void)
 	x86_pmu.cntr_mask64	= GENMASK_ULL(AMD64_NUM_COUNTERS_CORE - 1, 0);
 
 	/* Check for Performance Monitoring v2 support */
-	if (boot_cpu_has(X86_FEATURE_PERFMON_V2)) {
-		ebx.full = cpuid_ebx(EXT_PERFMON_DEBUG_FEATURES);
-
+	if (leaf && boot_cpu_has(X86_FEATURE_PERFMON_V2)) {
 		/* Update PMU version for later usage */
 		x86_pmu.version = 2;
 
 		/* Find the number of available Core PMCs */
-		x86_pmu.cntr_mask64 = GENMASK_ULL(ebx.split.num_core_pmc - 1, 0);
+		x86_pmu.cntr_mask64 = GENMASK_ULL(leaf->n_pmc_core - 1, 0);
 
 		amd_pmu_global_cntr_mask = x86_pmu.cntr_mask64;
 
diff --git a/arch/x86/events/amd/uncore.c b/arch/x86/events/amd/uncore.c
index 05cff39968ec..6a5d8f8cfbc0 100644
--- a/arch/x86/events/amd/uncore.c
+++ b/arch/x86/events/amd/uncore.c
@@ -692,7 +692,7 @@ static int amd_uncore_df_add(struct perf_event *event, int flags)
 static
 void amd_uncore_df_ctx_scan(struct amd_uncore *uncore, unsigned int cpu)
 {
-	union cpuid_0x80000022_ebx ebx;
+	const struct leaf_0x80000022_0 *leaf = cpuid_leaf(&cpu_data(cpu), 0x80000022);
 	union amd_uncore_info info;
 
 	if (!boot_cpu_has(X86_FEATURE_PERFCTR_NB))
@@ -703,10 +703,8 @@ void amd_uncore_df_ctx_scan(struct amd_uncore *uncore, unsigned int cpu)
 	info.split.gid = 0;
 	info.split.cid = topology_logical_package_id(cpu);
 
-	if (pmu_version >= 2) {
-		ebx.full = cpuid_ebx(EXT_PERFMON_DEBUG_FEATURES);
-		info.split.num_pmcs = ebx.split.num_df_pmc;
-	}
+	if (leaf && pmu_version >= 2)
+		info.split.num_pmcs = leaf->n_pmc_northbridge;
 
 	*per_cpu_ptr(uncore->info, cpu) = info;
 }
@@ -990,16 +988,14 @@ static void amd_uncore_umc_read(struct perf_event *event)
 static
 void amd_uncore_umc_ctx_scan(struct amd_uncore *uncore, unsigned int cpu)
 {
-	union cpuid_0x80000022_ebx ebx;
+	const struct leaf_0x80000022_0 *leaf = cpuid_leaf(&cpu_data(cpu), 0x80000022);
 	union amd_uncore_info info;
-	unsigned int eax, ecx, edx;
 
-	if (pmu_version < 2)
+	if (!leaf || pmu_version < 2)
 		return;
 
-	cpuid(EXT_PERFMON_DEBUG_FEATURES, &eax, &ebx.full, &ecx, &edx);
-	info.split.aux_data = ecx;	/* stash active mask */
-	info.split.num_pmcs = ebx.split.num_umc_pmc;
+	info.split.aux_data = leaf->active_umc_bitmask;
+	info.split.num_pmcs = leaf->n_pmc_umc;
 	info.split.gid = topology_logical_package_id(cpu);
 	info.split.cid = topology_logical_package_id(cpu);
 	*per_cpu_ptr(uncore->info, cpu) = info;
-- 
2.54.0