events/amd/uncore.c

78 	void (*scan)(struct amd_uncore *uncore, unsigned int cpu);
79 	int  (*init)(struct amd_uncore *uncore, unsigned int cpu);
80 	void (*move)(struct amd_uncore *uncore, unsigned int cpu);
81 	void (*free)(struct amd_uncore *uncore, unsigned int cpu);
105 	 * Some uncore PMUs do not have RDPMC assignments. In such cases,
391 int amd_uncore_ctx_cid(struct amd_uncore *uncore, unsigned int cpu)
393 	union amd_uncore_info *info = per_cpu_ptr(uncore->info, cpu);
398 int amd_uncore_ctx_gid(struct amd_uncore *uncore, unsigned int cpu)
400 	union amd_uncore_info *info = per_cpu_ptr(uncore->info, cpu);
405 int amd_uncore_ctx_num_pmcs(struct amd_uncore *uncore, unsigned int cpu)
407 	union amd_uncore_info *info = per_cpu_ptr(uncore->info, cpu);
411 static void amd_uncore_ctx_free(struct amd_uncore *uncore, unsigned int cpu)
417 	if (!uncore->init_done)
420 	for (i = 0; i < uncore->num_pmus; i++) {
421 		pmu = &uncore->pmus[i];
438 static int amd_uncore_ctx_init(struct amd_uncore *uncore, unsigned int cpu)
444 	if (!uncore->init_done || !uncore->num_pmus)
447 	cid = amd_uncore_ctx_cid(uncore, cpu);
448 	gid = amd_uncore_ctx_gid(uncore, cpu);
450 	for (i = 0; i < uncore->num_pmus; i++) {
451 		pmu = &uncore->pmus[i];
468 			if (cid == amd_uncore_ctx_cid(uncore, j)) {
500 	amd_uncore_ctx_free(uncore, cpu);
505 static void amd_uncore_ctx_move(struct amd_uncore *uncore, unsigned int cpu)
511 	if (!uncore->init_done)
514 	for (i = 0; i < uncore->num_pmus; i++) {
515 		pmu = &uncore->pmus[i];
539 	struct amd_uncore *uncore;
543 		uncore = &uncores[i];
544 		uncore->scan(uncore, cpu);
552 	struct amd_uncore *uncore;
556 		uncore = &uncores[i];
557 		if (uncore->init(uncore, cpu))
566 	struct amd_uncore *uncore;
570 		uncore = &uncores[i];
571 		uncore->move(uncore, cpu);
579 	struct amd_uncore *uncore;
583 		uncore = &uncores[i];
584 		uncore->free(uncore, cpu);
631 void amd_uncore_df_ctx_scan(struct amd_uncore *uncore, unsigned int cpu)
649 	*per_cpu_ptr(uncore->info, cpu) = info;
653 int amd_uncore_df_ctx_init(struct amd_uncore *uncore, unsigned int cpu)
659 	if (uncore->init_done)
660 		return amd_uncore_ctx_init(uncore, cpu);
663 	uncore->pmus = kzalloc(sizeof(*uncore->pmus), GFP_KERNEL);
664 	if (!uncore->pmus) {
665 		uncore->num_pmus = 0;
674 	pmu = &uncore->pmus[0];
677 	pmu->num_counters = amd_uncore_ctx_num_pmcs(uncore, cpu);
680 	pmu->group = amd_uncore_ctx_gid(uncore, cpu);
717 	uncore->num_pmus = 1;
720 	uncore->init_done = true;
722 	return amd_uncore_ctx_init(uncore, cpu);
765 void amd_uncore_l3_ctx_scan(struct amd_uncore *uncore, unsigned int cpu)
780 	*per_cpu_ptr(uncore->info, cpu) = info;
784 int amd_uncore_l3_ctx_init(struct amd_uncore *uncore, unsigned int cpu)
790 	if (uncore->init_done)
791 		return amd_uncore_ctx_init(uncore, cpu);
794 	uncore->pmus = kzalloc(sizeof(*uncore->pmus), GFP_KERNEL);
795 	if (!uncore->pmus) {
796 		uncore->num_pmus = 0;
805 	pmu = &uncore->pmus[0];
808 	pmu->num_counters = amd_uncore_ctx_num_pmcs(uncore, cpu);
811 	pmu->group = amd_uncore_ctx_gid(uncore, cpu);
850 	uncore->num_pmus = 1;
853 	uncore->init_done = true;
855 	return amd_uncore_ctx_init(uncore, cpu);
884 void amd_uncore_umc_ctx_scan(struct amd_uncore *uncore, unsigned int cpu)
898 	*per_cpu_ptr(uncore->info, cpu) = info;
902 int amd_uncore_umc_ctx_init(struct amd_uncore *uncore, unsigned int cpu)
915 	if (uncore->init_done)
916 		return amd_uncore_ctx_init(uncore, cpu);
920 		info = *per_cpu_ptr(uncore->info, i);
928 		uncore->num_pmus += group_num_pmus[gid];
931 	uncore->pmus = kzalloc(sizeof(*uncore->pmus) * uncore->num_pmus,
933 	if (!uncore->pmus) {
934 		uncore->num_pmus = 0;
940 			pmu = &uncore->pmus[index];
979 	uncore->num_pmus = index;
980 	uncore->init_done = true;
982 	return amd_uncore_ctx_init(uncore, cpu);
1011 	struct amd_uncore *uncore;
1026 		uncore = &uncores[i];
1028 		BUG_ON(!uncore->scan);
1029 		BUG_ON(!uncore->init);
1030 		BUG_ON(!uncore->move);
1031 		BUG_ON(!uncore->free);
1033 		uncore->info = alloc_percpu(union amd_uncore_info);
1034 		if (!uncore->info) {
1044 				"perf/x86/amd/uncore:prepare",
1050 				"perf/x86/amd/uncore:starting",
1056 				"perf/x86/amd/uncore:online",
1070 		uncore = &uncores[i];
1071 		if (uncore->info) {
1072 			free_percpu(uncore->info);
1073 			uncore->info = NULL;
1082 	struct amd_uncore *uncore;
1091 		uncore = &uncores[i];
1092 		if (!uncore->info)
1095 		free_percpu(uncore->info);
1096 		uncore->info = NULL;
1098 		for (j = 0; j < uncore->num_pmus; j++) {
1099 			pmu = &uncore->pmus[j];
1108 		kfree(uncore->pmus);
1109 		uncore->pmus = NULL;