arm_spe: add --spe=t for true_sharing in spe-c2c

hulk inclusion
category: feature
bugzilla: 18657
CVE: NA

-------------------------------------------

Add new option --spe=t for true_sharing in spe-c2c, default is no.
Signed-off-by: NTan Xiaojun <tanxiaojun@huawei.com>
Signed-off-by: NWei Li <liwei391@huawei.com>
Reviewed-by: NXuefeng Wang <wxf.wang@hisilicon.com>
Reviewed-by: NTan Xiaojun <tanxiaojun@huawei.com>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>

tools/perf/util/arm-spe.c

@@ -751,8 +751,10 @@ static void arm_spe_c2c_get_samples(void *arg)
 	struct rb_root *listB = ((struct spe_c2c_compare_lists *)arg)->listB;
 	struct spe_c2c_sample_queues *queues = ((struct spe_c2c_compare_lists *)arg)->queues;
 	struct spe_c2c_sample_queues *oppoqs = ((struct spe_c2c_compare_lists *)arg)->oppoqs;
+	struct arm_spe_queue *speq = queues->speq;
 	struct rb_node *nodeA, *nodeB;
 	struct spe_c2c_sample *sampleA, *sampleB;
+	bool tshare = speq->spe->synth_opts.c2c_tshare;
 	uint64_t xor;
 
 	for (nodeA = rb_first(listA); nodeA; nodeA = rb_next(nodeA)) {
@@ -761,8 +763,9 @@ static void arm_spe_c2c_get_samples(void *arg)
 			sampleB = rb_entry(nodeB, struct spe_c2c_sample, rb_node);
 
 			xor = sampleA->state.phys_addr ^ sampleB->state.phys_addr;
-			if (!(xor & 0xFFFFFFFFFFFFFFC0) && (xor & 0x3F)
-					&& sampleA->tid != sampleB->tid) {
+			if (!(xor & 0xFFFFFFFFFFFFFFC0)
+					&& (tshare || (xor & 0x3F))
+					&& (sampleA->tid != sampleB->tid)) {
 				pthread_mutex_lock(&mut);
 				arm_spe_c2c_sample(queues, sampleA);
 				arm_spe_c2c_sample(oppoqs, sampleB);

tools/perf/util/auxtrace.c

@@ -1144,6 +1144,7 @@ void arm_spe_synth_opts__set_default(struct arm_spe_synth_opts *synth_opts)
 	synth_opts->remote_access = true;
 	synth_opts->c2c_remote = false;
 	synth_opts->c2c_store = false;
+	synth_opts->c2c_tshare = false;
 }
 
 int arm_spe_parse_synth_opts(const struct option *opt, const char *str,
@@ -1165,7 +1166,10 @@ int arm_spe_parse_synth_opts(const struct option *opt, const char *str,
 			synth_opts->llc_miss = true;
 			break;
 		case 't':
-			synth_opts->tlb_miss = true;
+			if (synth_opts->c2c_mode)
+				synth_opts->c2c_tshare = true;
+			else
+				synth_opts->tlb_miss = true;
 			break;
 		case 'b':
 			synth_opts->branch_miss = true;

tools/perf/util/auxtrace.h

@@ -121,6 +121,7 @@ struct arm_spe_synth_opts {
 	bool			c2c_mode;
 	bool			c2c_remote;
 	bool			c2c_store;
+	bool			c2c_tshare;
 };
 
 /**