1 files changed, 354 insertions, 75 deletions

diff --git a/tools/perf/util/mem-events.c b/tools/perf/util/mem-events.c
index ea0af0bc4314..637cbd4a7bfb 100644
--- a/tools/perf/util/mem-events.c
+++ b/tools/perf/util/mem-events.c
@@ -12,38 +12,131 @@
 #include "mem-events.h"
 #include "debug.h"
 #include "symbol.h"
+#include "pmu.h"
+#include "pmus.h"
 
 unsigned int perf_mem_events__loads_ldlat = 30;
 
-#define E(t, n, s) { .tag = t, .name = n, .sysfs_name = s }
+#define E(t, n, s, l, a) { .tag = t, .name = n, .event_name = s, .ldlat = l, .aux_event = a }
 
 struct perf_mem_event perf_mem_events[PERF_MEM_EVENTS__MAX] = {
-	E("ldlat-loads",	"cpu/mem-loads,ldlat=%u/P",	"mem-loads"),
-	E("ldlat-stores",	"cpu/mem-stores/P",		"mem-stores"),
+	E("ldlat-loads",	"%s/mem-loads,ldlat=%u/P",	"mem-loads",	true,	0),
+	E("ldlat-stores",	"%s/mem-stores/P",		"mem-stores",	false,	0),
+	E(NULL,			NULL,				NULL,		false,	0),
 };
 #undef E
 
-#undef E
-
 static char mem_loads_name[100];
-static bool mem_loads_name__init;
+static char mem_stores_name[100];
+
+struct perf_mem_event *perf_pmu__mem_events_ptr(struct perf_pmu *pmu, int i)
+{
+	if (i >= PERF_MEM_EVENTS__MAX || !pmu)
+		return NULL;
+
+	return &pmu->mem_events[i];
+}
+
+static struct perf_pmu *perf_pmus__scan_mem(struct perf_pmu *pmu)
+{
+	while ((pmu = perf_pmus__scan(pmu)) != NULL) {
+		if (pmu->mem_events)
+			return pmu;
+	}
+	return NULL;
+}
+
+struct perf_pmu *perf_mem_events_find_pmu(void)
+{
+	/*
+	 * The current perf mem doesn't support per-PMU configuration.
+	 * The exact same configuration is applied to all the
+	 * mem_events supported PMUs.
+	 * Return the first mem_events supported PMU.
+	 *
+	 * Notes: The only case which may support multiple mem_events
+	 * supported PMUs is Intel hybrid. The exact same mem_events
+	 * is shared among the PMUs. Only configure the first PMU
+	 * is good enough as well.
+	 */
+	return perf_pmus__scan_mem(NULL);
+}
 
-char * __weak perf_mem_events__name(int i)
+/**
+ * perf_pmu__mem_events_num_mem_pmus - Get the number of mem PMUs since the given pmu
+ * @pmu: Start pmu. If it's NULL, search the entire PMU list.
+ */
+int perf_pmu__mem_events_num_mem_pmus(struct perf_pmu *pmu)
 {
-	if (i == PERF_MEM_EVENTS__LOAD) {
-		if (!mem_loads_name__init) {
-			mem_loads_name__init = true;
-			scnprintf(mem_loads_name, sizeof(mem_loads_name),
-				  perf_mem_events[i].name,
-				  perf_mem_events__loads_ldlat);
+	int num = 0;
+
+	while ((pmu = perf_pmus__scan_mem(pmu)) != NULL)
+		num++;
+
+	return num;
+}
+
+static const char *perf_pmu__mem_events_name(int i, struct perf_pmu *pmu)
+{
+	struct perf_mem_event *e;
+
+	if (i >= PERF_MEM_EVENTS__MAX || !pmu)
+		return NULL;
+
+	e = &pmu->mem_events[i];
+	if (!e)
+		return NULL;
+
+	if (i == PERF_MEM_EVENTS__LOAD || i == PERF_MEM_EVENTS__LOAD_STORE) {
+		if (e->ldlat) {
+			if (!e->aux_event) {
+				/* ARM and Most of Intel */
+				scnprintf(mem_loads_name, sizeof(mem_loads_name),
+					  e->name, pmu->name,
+					  perf_mem_events__loads_ldlat);
+			} else {
+				/* Intel with mem-loads-aux event */
+				scnprintf(mem_loads_name, sizeof(mem_loads_name),
+					  e->name, pmu->name, pmu->name,
+					  perf_mem_events__loads_ldlat);
+			}
+		} else {
+			if (!e->aux_event) {
+				/* AMD and POWER */
+				scnprintf(mem_loads_name, sizeof(mem_loads_name),
+					  e->name, pmu->name);
+			} else
+				return NULL;
 		}
+
 		return mem_loads_name;
 	}
 
-	return (char *)perf_mem_events[i].name;
+	if (i == PERF_MEM_EVENTS__STORE) {
+		scnprintf(mem_stores_name, sizeof(mem_stores_name),
+			  e->name, pmu->name);
+		return mem_stores_name;
+	}
+
+	return NULL;
 }
 
-int perf_mem_events__parse(const char *str)
+bool is_mem_loads_aux_event(struct evsel *leader)
+{
+	struct perf_pmu *pmu = leader->pmu;
+	struct perf_mem_event *e;
+
+	if (!pmu || !pmu->mem_events)
+		return false;
+
+	e = &pmu->mem_events[PERF_MEM_EVENTS__LOAD];
+	if (!e->aux_event)
+		return false;
+
+	return leader->core.attr.config == e->aux_event;
+}
+
+int perf_pmu__mem_events_parse(struct perf_pmu *pmu, const char *str)
 {
 	char *tok, *saveptr = NULL;
 	bool found = false;
@@ -61,7 +154,10 @@ int perf_mem_events__parse(const char *str)
 
 	while (tok) {
 		for (j = 0; j < PERF_MEM_EVENTS__MAX; j++) {
-			struct perf_mem_event *e = &perf_mem_events[j];
+			struct perf_mem_event *e = perf_pmu__mem_events_ptr(pmu, j);
+
+			if (!e->tag)
+				continue;
 
 			if (strstr(e->tag, tok))
 				e->record = found = true;
@@ -79,7 +175,21 @@ int perf_mem_events__parse(const char *str)
 	return -1;
 }
 
-int perf_mem_events__init(void)
+static bool perf_pmu__mem_events_supported(const char *mnt, struct perf_pmu *pmu,
+				      struct perf_mem_event *e)
+{
+	char path[PATH_MAX];
+	struct stat st;
+
+	if (!e->event_name)
+		return true;
+
+	scnprintf(path, PATH_MAX, "%s/devices/%s/events/%s", mnt, pmu->name, e->event_name);
+
+	return !stat(path, &st);
+}
+
+int perf_pmu__mem_events_init(struct perf_pmu *pmu)
 {
 	const char *mnt = sysfs__mount();
 	bool found = false;
@@ -89,33 +199,76 @@ int perf_mem_events__init(void)
 		return -ENOENT;
 
 	for (j = 0; j < PERF_MEM_EVENTS__MAX; j++) {
-		char path[PATH_MAX];
-		struct perf_mem_event *e = &perf_mem_events[j];
-		struct stat st;
+		struct perf_mem_event *e = perf_pmu__mem_events_ptr(pmu, j);
 
-		scnprintf(path, PATH_MAX, "%s/devices/cpu/events/%s",
-			  mnt, e->sysfs_name);
+		/*
+		 * If the event entry isn't valid, skip initialization
+		 * and "e->supported" will keep false.
+		 */
+		if (!e->tag)
+			continue;
 
-		if (!stat(path, &st))
-			e->supported = found = true;
+		e->supported |= perf_pmu__mem_events_supported(mnt, pmu, e);
+		if (e->supported)
+			found = true;
 	}
 
 	return found ? 0 : -ENOENT;
 }
 
-void perf_mem_events__list(void)
+void perf_pmu__mem_events_list(struct perf_pmu *pmu)
 {
 	int j;
 
 	for (j = 0; j < PERF_MEM_EVENTS__MAX; j++) {
-		struct perf_mem_event *e = &perf_mem_events[j];
+		struct perf_mem_event *e = perf_pmu__mem_events_ptr(pmu, j);
+
+		fprintf(stderr, "%-*s%-*s%s",
+			e->tag ? 13 : 0,
+			e->tag ? : "",
+			e->tag && verbose > 0 ? 25 : 0,
+			e->tag && verbose > 0 ? perf_pmu__mem_events_name(j, pmu) : "",
+			e->supported ? ": available\n" : "");
+	}
+}
+
+int perf_mem_events__record_args(const char **rec_argv, int *argv_nr)
+{
+	const char *mnt = sysfs__mount();
+	struct perf_pmu *pmu = NULL;
+	struct perf_mem_event *e;
+	int i = *argv_nr;
+	const char *s;
+	char *copy;
+
+	while ((pmu = perf_pmus__scan_mem(pmu)) != NULL) {
+		for (int j = 0; j < PERF_MEM_EVENTS__MAX; j++) {
+			e = perf_pmu__mem_events_ptr(pmu, j);
+
+			if (!e->record)
+				continue;
+
+			if (!e->supported) {
+				pr_err("failed: event '%s' not supported\n",
+					perf_pmu__mem_events_name(j, pmu));
+				return -1;
+			}
+
+			s = perf_pmu__mem_events_name(j, pmu);
+			if (!s || !perf_pmu__mem_events_supported(mnt, pmu, e))
+				continue;
 
-		fprintf(stderr, "%-13s%-*s%s\n",
-			e->tag,
-			verbose > 0 ? 25 : 0,
-			verbose > 0 ? perf_mem_events__name(j) : "",
-			e->supported ? ": available" : "");
+			copy = strdup(s);
+			if (!copy)
+				return -1;
+
+			rec_argv[i++] = "-e";
+			rec_argv[i++] = copy;
+		}
 	}
+
+	*argv_nr = i;
+	return 0;
 }
 
 static const char * const tlb_access[] = {
@@ -170,7 +323,7 @@ static const char * const mem_lvl[] = {
 	"HIT",
 	"MISS",
 	"L1",
-	"LFB",
+	"LFB/MAB",
 	"L2",
 	"L3",
 	"Local RAM",
@@ -183,41 +336,104 @@ static const char * const mem_lvl[] = {
 };
 
 static const char * const mem_lvlnum[] = {
+	[PERF_MEM_LVLNUM_UNC] = "Uncached",
+	[PERF_MEM_LVLNUM_CXL] = "CXL",
+	[PERF_MEM_LVLNUM_IO] = "I/O",
 	[PERF_MEM_LVLNUM_ANY_CACHE] = "Any cache",
-	[PERF_MEM_LVLNUM_LFB] = "LFB",
+	[PERF_MEM_LVLNUM_LFB] = "LFB/MAB",
 	[PERF_MEM_LVLNUM_RAM] = "RAM",
 	[PERF_MEM_LVLNUM_PMEM] = "PMEM",
 	[PERF_MEM_LVLNUM_NA] = "N/A",
 };
 
-int perf_mem__lvl_scnprintf(char *out, size_t sz, struct mem_info *mem_info)
+static const char * const mem_hops[] = {
+	"N/A",
+	/*
+	 * While printing, 'Remote' will be added to represent
+	 * 'Remote core, same node' accesses as remote field need
+	 * to be set with mem_hops field.
+	 */
+	"core, same node",
+	"node, same socket",
+	"socket, same board",
+	"board",
+};
+
+static int perf_mem__op_scnprintf(char *out, size_t sz, struct mem_info *mem_info)
 {
-	size_t i, l = 0;
-	u64 m =  PERF_MEM_LVL_NA;
-	u64 hit, miss;
-	int printed;
+	u64 op = PERF_MEM_LOCK_NA;
+	int l;
 
 	if (mem_info)
-		m  = mem_info->data_src.mem_lvl;
+		op = mem_info->data_src.mem_op;
+
+	if (op & PERF_MEM_OP_NA)
+		l = scnprintf(out, sz, "N/A");
+	else if (op & PERF_MEM_OP_LOAD)
+		l = scnprintf(out, sz, "LOAD");
+	else if (op & PERF_MEM_OP_STORE)
+		l = scnprintf(out, sz, "STORE");
+	else if (op & PERF_MEM_OP_PFETCH)
+		l = scnprintf(out, sz, "PFETCH");
+	else if (op & PERF_MEM_OP_EXEC)
+		l = scnprintf(out, sz, "EXEC");
+	else
+		l = scnprintf(out, sz, "No");
+
+	return l;
+}
+
+int perf_mem__lvl_scnprintf(char *out, size_t sz, struct mem_info *mem_info)
+{
+	union perf_mem_data_src data_src;
+	int printed = 0;
+	size_t l = 0;
+	size_t i;
+	int lvl;
+	char hit_miss[5] = {0};
 
 	sz -= 1; /* -1 for null termination */
 	out[0] = '\0';
 
-	hit = m & PERF_MEM_LVL_HIT;
-	miss = m & PERF_MEM_LVL_MISS;
+	if (!mem_info)
+		goto na;
 
-	/* already taken care of */
-	m &= ~(PERF_MEM_LVL_HIT|PERF_MEM_LVL_MISS);
+	data_src = mem_info->data_src;
+
+	if (data_src.mem_lvl & PERF_MEM_LVL_HIT)
+		memcpy(hit_miss, "hit", 3);
+	else if (data_src.mem_lvl & PERF_MEM_LVL_MISS)
+		memcpy(hit_miss, "miss", 4);
+
+	lvl = data_src.mem_lvl_num;
+	if (lvl && lvl != PERF_MEM_LVLNUM_NA) {
+		if (data_src.mem_remote) {
+			strcat(out, "Remote ");
+			l += 7;
+		}
+
+		if (data_src.mem_hops)
+			l += scnprintf(out + l, sz - l, "%s ", mem_hops[data_src.mem_hops]);
 
+		if (mem_lvlnum[lvl])
+			l += scnprintf(out + l, sz - l, mem_lvlnum[lvl]);
+		else
+			l += scnprintf(out + l, sz - l, "L%d", lvl);
 
-	if (mem_info && mem_info->data_src.mem_remote) {
-		strcat(out, "Remote ");
-		l += 7;
+		l += scnprintf(out + l, sz - l, " %s", hit_miss);
+		return l;
 	}
 
-	printed = 0;
-	for (i = 0; m && i < ARRAY_SIZE(mem_lvl); i++, m >>= 1) {
-		if (!(m & 0x1))
+	lvl = data_src.mem_lvl;
+	if (!lvl)
+		goto na;
+
+	lvl &= ~(PERF_MEM_LVL_NA | PERF_MEM_LVL_HIT | PERF_MEM_LVL_MISS);
+	if (!lvl)
+		goto na;
+
+	for (i = 0; lvl && i < ARRAY_SIZE(mem_lvl); i++, lvl >>= 1) {
+		if (!(lvl & 0x1))
 			continue;
 		if (printed++) {
 			strcat(out, " or ");
@@ -226,26 +442,14 @@ int perf_mem__lvl_scnprintf(char *out, size_t sz, struct mem_info *mem_info)
 		l += scnprintf(out + l, sz - l, mem_lvl[i]);
 	}
 
-	if (mem_info && mem_info->data_src.mem_lvl_num) {
-		int lvl = mem_info->data_src.mem_lvl_num;
-		if (printed++) {
-			strcat(out, " or ");
-			l += 4;
-		}
-		if (mem_lvlnum[lvl])
-			l += scnprintf(out + l, sz - l, mem_lvlnum[lvl]);
-		else
-			l += scnprintf(out + l, sz - l, "L%d", lvl);
+	if (printed) {
+		l += scnprintf(out + l, sz - l, " %s", hit_miss);
+		return l;
 	}
 
-	if (l == 0)
-		l += scnprintf(out + l, sz - l, "N/A");
-	if (hit)
-		l += scnprintf(out + l, sz - l, " hit");
-	if (miss)
-		l += scnprintf(out + l, sz - l, " miss");
-
-	return l;
+na:
+	strcat(out, "N/A");
+	return 3;
 }
 
 static const char * const snoop_access[] = {
@@ -256,6 +460,11 @@ static const char * const snoop_access[] = {
 	"HitM",
 };
 
+static const char * const snoopx_access[] = {
+	"Fwd",
+	"Peer",
+};
+
 int perf_mem__snp_scnprintf(char *out, size_t sz, struct mem_info *mem_info)
 {
 	size_t i, l = 0;
@@ -276,13 +485,20 @@ int perf_mem__snp_scnprintf(char *out, size_t sz, struct mem_info *mem_info)
 		}
 		l += scnprintf(out + l, sz - l, snoop_access[i]);
 	}
-	if (mem_info &&
-	     (mem_info->data_src.mem_snoopx & PERF_MEM_SNOOPX_FWD)) {
+
+	m = 0;
+	if (mem_info)
+		m = mem_info->data_src.mem_snoopx;
+
+	for (i = 0; m && i < ARRAY_SIZE(snoopx_access); i++, m >>= 1) {
+		if (!(m & 0x1))
+			continue;
+
 		if (l) {
 			strcat(out, " or ");
 			l += 4;
 		}
-		l += scnprintf(out + l, sz - l, "Fwd");
+		l += scnprintf(out + l, sz - l, snoopx_access[i]);
 	}
 
 	if (*out == '\0')
@@ -309,17 +525,45 @@ int perf_mem__lck_scnprintf(char *out, size_t sz, struct mem_info *mem_info)
 	return l;
 }
 
+int perf_mem__blk_scnprintf(char *out, size_t sz, struct mem_info *mem_info)
+{
+	size_t l = 0;
+	u64 mask = PERF_MEM_BLK_NA;
+
+	sz -= 1; /* -1 for null termination */
+	out[0] = '\0';
+
+	if (mem_info)
+		mask = mem_info->data_src.mem_blk;
+
+	if (!mask || (mask & PERF_MEM_BLK_NA)) {
+		l += scnprintf(out + l, sz - l, " N/A");
+		return l;
+	}
+	if (mask & PERF_MEM_BLK_DATA)
+		l += scnprintf(out + l, sz - l, " Data");
+	if (mask & PERF_MEM_BLK_ADDR)
+		l += scnprintf(out + l, sz - l, " Addr");
+
+	return l;
+}
+
 int perf_script__meminfo_scnprintf(char *out, size_t sz, struct mem_info *mem_info)
 {
 	int i = 0;
 
-	i += perf_mem__lvl_scnprintf(out, sz, mem_info);
+	i += scnprintf(out, sz, "|OP ");
+	i += perf_mem__op_scnprintf(out + i, sz - i, mem_info);
+	i += scnprintf(out + i, sz - i, "|LVL ");
+	i += perf_mem__lvl_scnprintf(out + i, sz, mem_info);
 	i += scnprintf(out + i, sz - i, "|SNP ");
 	i += perf_mem__snp_scnprintf(out + i, sz - i, mem_info);
 	i += scnprintf(out + i, sz - i, "|TLB ");
 	i += perf_mem__tlb_scnprintf(out + i, sz - i, mem_info);
 	i += scnprintf(out + i, sz - i, "|LCK ");
 	i += perf_mem__lck_scnprintf(out + i, sz - i, mem_info);
+	i += scnprintf(out + i, sz - i, "|BLK ");
+	i += perf_mem__blk_scnprintf(out + i, sz - i, mem_info);
 
 	return i;
 }
@@ -331,12 +575,18 @@ int c2c_decode_stats(struct c2c_stats *stats, struct mem_info *mi)
 	u64 op     = data_src->mem_op;
 	u64 lvl    = data_src->mem_lvl;
 	u64 snoop  = data_src->mem_snoop;
+	u64 snoopx = data_src->mem_snoopx;
 	u64 lock   = data_src->mem_lock;
+	u64 blk    = data_src->mem_blk;
 	/*
 	 * Skylake might report unknown remote level via this
 	 * bit, consider it when evaluating remote HITMs.
+	 *
+	 * Incase of power, remote field can also be used to denote cache
+	 * accesses from the another core of same node. Hence, setting
+	 * mrem only when HOPS is zero along with set remote field.
 	 */
-	bool mrem  = data_src->mem_remote;
+	bool mrem  = (data_src->mem_remote && !data_src->mem_hops);
 	int err = 0;
 
 #define HITM_INC(__f)		\
@@ -345,12 +595,21 @@ do {				\
 	stats->tot_hitm++;	\
 } while (0)
 
+#define PEER_INC(__f)		\
+do {				\
+	stats->__f++;		\
+	stats->tot_peer++;	\
+} while (0)
+
 #define P(a, b) PERF_MEM_##a##_##b
 
 	stats->nr_entries++;
 
 	if (lock & P(LOCK, LOCKED)) stats->locks++;
 
+	if (blk & P(BLK, DATA)) stats->blk_data++;
+	if (blk & P(BLK, ADDR)) stats->blk_addr++;
+
 	if (op & P(OP, LOAD)) {
 		/* load */
 		stats->load++;
@@ -365,12 +624,20 @@ do {				\
 			if (lvl & P(LVL, IO))  stats->ld_io++;
 			if (lvl & P(LVL, LFB)) stats->ld_fbhit++;
 			if (lvl & P(LVL, L1 )) stats->ld_l1hit++;
-			if (lvl & P(LVL, L2 )) stats->ld_l2hit++;
+			if (lvl & P(LVL, L2)) {
+				stats->ld_l2hit++;
+
+				if (snoopx & P(SNOOPX, PEER))
+					PEER_INC(lcl_peer);
+			}
 			if (lvl & P(LVL, L3 )) {
 				if (snoop & P(SNOOP, HITM))
 					HITM_INC(lcl_hitm);
 				else
 					stats->ld_llchit++;
+
+				if (snoopx & P(SNOOPX, PEER))
+					PEER_INC(lcl_peer);
 			}
 
 			if (lvl & P(LVL, LOC_RAM)) {
@@ -395,10 +662,14 @@ do {				\
 		if ((lvl & P(LVL, REM_CCE1)) ||
 		    (lvl & P(LVL, REM_CCE2)) ||
 		     mrem) {
-			if (snoop & P(SNOOP, HIT))
+			if (snoop & P(SNOOP, HIT)) {
 				stats->rmt_hit++;
-			else if (snoop & P(SNOOP, HITM))
+			} else if (snoop & P(SNOOP, HITM)) {
 				HITM_INC(rmt_hitm);
+			} else if (snoopx & P(SNOOPX, PEER)) {
+				stats->rmt_hit++;
+				PEER_INC(rmt_peer);
+			}
 		}
 
 		if ((lvl & P(LVL, MISS)))
@@ -419,6 +690,8 @@ do {				\
 		}
 		if (lvl & P(LVL, MISS))
 			if (lvl & P(LVL, L1)) stats->st_l1miss++;
+		if (lvl & P(LVL, NA))
+			stats->st_na++;
 	} else {
 		/* unparsable data_src? */
 		stats->noparse++;
@@ -445,6 +718,7 @@ void c2c_add_stats(struct c2c_stats *stats, struct c2c_stats *add)
 	stats->st_noadrs	+= add->st_noadrs;
 	stats->st_l1hit		+= add->st_l1hit;
 	stats->st_l1miss	+= add->st_l1miss;
+	stats->st_na		+= add->st_na;
 	stats->load		+= add->load;
 	stats->ld_excl		+= add->ld_excl;
 	stats->ld_shared	+= add->ld_shared;
@@ -459,9 +733,14 @@ void c2c_add_stats(struct c2c_stats *stats, struct c2c_stats *add)
 	stats->lcl_hitm		+= add->lcl_hitm;
 	stats->rmt_hitm		+= add->rmt_hitm;
 	stats->tot_hitm		+= add->tot_hitm;
+	stats->lcl_peer		+= add->lcl_peer;
+	stats->rmt_peer		+= add->rmt_peer;
+	stats->tot_peer		+= add->tot_peer;
 	stats->rmt_hit		+= add->rmt_hit;
 	stats->lcl_dram		+= add->lcl_dram;
 	stats->rmt_dram		+= add->rmt_dram;
+	stats->blk_data		+= add->blk_data;
+	stats->blk_addr		+= add->blk_addr;
 	stats->nomap		+= add->nomap;
 	stats->noparse		+= add->noparse;
 }