perf/POWER7: Make generic event translations available in sysfs (1c53a270) · Commits · e / devices / android_kernel_oneplus_sm8150

Documentation/ABI/stable/sysfs-devices-cpu-events

0 → 100644

+0 −0

Empty file added.

arch/powerpc/include/asm/perf_event_server.h

+23 −0

Original line number	Original line	Diff line number	Diff line
	@@ -11,6 +11,7 @@

	#include <linux/types.h>		#include <linux/types.h>
	#include <asm/hw_irq.h>		#include <asm/hw_irq.h>
			#include <linux/device.h>

	#define MAX_HWEVENTS 8		#define MAX_HWEVENTS 8
	#define MAX_EVENT_ALTERNATIVES 8		#define MAX_EVENT_ALTERNATIVES 8
	@@ -35,6 +36,7 @@ struct power_pmu {
	void (*disable_pmc)(unsigned int pmc, unsigned long mmcr[]);		void (*disable_pmc)(unsigned int pmc, unsigned long mmcr[]);
	int (*limited_pmc_event)(u64 event_id);		int (*limited_pmc_event)(u64 event_id);
	u32 flags;		u32 flags;
			const struct attribute_group **attr_groups;
	int n_generic;		int n_generic;
	int *generic_events;		int *generic_events;
	int (*cache_events)[PERF_COUNT_HW_CACHE_MAX]		int (*cache_events)[PERF_COUNT_HW_CACHE_MAX]
	@@ -109,3 +111,24 @@ extern unsigned long perf_instruction_pointer(struct pt_regs *regs);
	* If an event_id is not subject to the constraint expressed by a particular		* If an event_id is not subject to the constraint expressed by a particular
	* field, then it will have 0 in both the mask and value for that field.		* field, then it will have 0 in both the mask and value for that field.
	*/		*/

			extern ssize_t power_events_sysfs_show(struct device *dev,
			struct device_attribute attr, char page);

			/*
			* EVENT_VAR() is same as PMU_EVENT_VAR with a suffix.
			*
			* Having a suffix allows us to have aliases in sysfs - eg: the generic
			* event 'cpu-cycles' can have two entries in sysfs: 'cpu-cycles' and
			* 'PM_CYC' where the latter is the name by which the event is known in
			* POWER CPU specification.
			*/
			#define EVENT_VAR(_id, _suffix) event_attr_##_id##_suffix
			#define EVENT_PTR(_id, _suffix) &EVENT_VAR(_id, _suffix)

			#define EVENT_ATTR(_name, _id, _suffix) \
			PMU_EVENT_ATTR(_name, EVENT_VAR(_id, _suffix), PME_PM_##_id, \
			power_events_sysfs_show)

			#define GENERIC_EVENT_ATTR(_name, _id) EVENT_ATTR(_name, _id, _g)
			#define GENERIC_EVENT_PTR(_id) EVENT_PTR(_id, _g)

arch/powerpc/perf/core-book3s.c

+12 −0

Original line number	Original line	Diff line number	Diff line
	@@ -1305,6 +1305,16 @@ static int power_pmu_event_idx(struct perf_event *event)
	return event->hw.idx;		return event->hw.idx;
	}		}

			ssize_t power_events_sysfs_show(struct device *dev,
			struct device_attribute attr, char page)
			{
			struct perf_pmu_events_attr *pmu_attr;

			pmu_attr = container_of(attr, struct perf_pmu_events_attr, attr);

			return sprintf(page, "event=0x%02llx\n", pmu_attr->id);
			}

	struct pmu power_pmu = {		struct pmu power_pmu = {
	.pmu_enable = power_pmu_enable,		.pmu_enable = power_pmu_enable,
	.pmu_disable = power_pmu_disable,		.pmu_disable = power_pmu_disable,
	@@ -1537,6 +1547,8 @@ int __cpuinit register_power_pmu(struct power_pmu *pmu)
	pr_info("%s performance monitor hardware support registered\n",		pr_info("%s performance monitor hardware support registered\n",
	pmu->name);		pmu->name);

			power_pmu.attr_groups = ppmu->attr_groups;

	#ifdef MSR_HV		#ifdef MSR_HV
	/*		/*
	* Use FCHV to ignore kernel events if MSR.HV is set.		* Use FCHV to ignore kernel events if MSR.HV is set.

arch/powerpc/perf/power7-pmu.c

+34 −0

Original line number	Original line	Diff line number	Diff line
	@@ -374,6 +374,39 @@ static int power7_cache_events[C(MAX)][C(OP_MAX)][C(RESULT_MAX)] = {
	},		},
	};		};


			GENERIC_EVENT_ATTR(cpu-cycles, CYC);
			GENERIC_EVENT_ATTR(stalled-cycles-frontend, GCT_NOSLOT_CYC);
			GENERIC_EVENT_ATTR(stalled-cycles-backend, CMPLU_STALL);
			GENERIC_EVENT_ATTR(instructions, INST_CMPL);
			GENERIC_EVENT_ATTR(cache-references, LD_REF_L1);
			GENERIC_EVENT_ATTR(cache-misses, LD_MISS_L1);
			GENERIC_EVENT_ATTR(branch-instructions, BRU_FIN);
			GENERIC_EVENT_ATTR(branch-misses, BRU_MPRED);

			static struct attribute *power7_events_attr[] = {
			GENERIC_EVENT_PTR(CYC),
			GENERIC_EVENT_PTR(GCT_NOSLOT_CYC),
			GENERIC_EVENT_PTR(CMPLU_STALL),
			GENERIC_EVENT_PTR(INST_CMPL),
			GENERIC_EVENT_PTR(LD_REF_L1),
			GENERIC_EVENT_PTR(LD_MISS_L1),
			GENERIC_EVENT_PTR(BRU_FIN),
			GENERIC_EVENT_PTR(BRU_MPRED),
			NULL
			};


			static struct attribute_group power7_pmu_events_group = {
			.name = "events",
			.attrs = power7_events_attr,
			};

			static const struct attribute_group *power7_pmu_attr_groups[] = {
			&power7_pmu_events_group,
			NULL,
			};

	static struct power_pmu power7_pmu = {		static struct power_pmu power7_pmu = {
	.name = "POWER7",		.name = "POWER7",
	.n_counter = 6,		.n_counter = 6,
	@@ -385,6 +418,7 @@ static struct power_pmu power7_pmu = {
	.get_alternatives = power7_get_alternatives,		.get_alternatives = power7_get_alternatives,
	.disable_pmc = power7_disable_pmc,		.disable_pmc = power7_disable_pmc,
	.flags = PPMU_ALT_SIPR,		.flags = PPMU_ALT_SIPR,
			.attr_groups = power7_pmu_attr_groups,
	.n_generic = ARRAY_SIZE(power7_generic_events),		.n_generic = ARRAY_SIZE(power7_generic_events),
	.generic_events = power7_generic_events,		.generic_events = power7_generic_events,
	.cache_events = &power7_cache_events,		.cache_events = &power7_cache_events,