From: Ravi Bangoria <ravi.bangoria@amd.com>
To: Arnaldo Carvalho de Melo <acme@kernel.org>,
Namhyung Kim <namhyung@kernel.org>,
Ian Rogers <irogers@google.com>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Dapeng Mi <dapeng1.mi@linux.intel.com>,
James Clark <james.clark@linaro.org>, <x86@kernel.org>,
<linux-perf-users@vger.kernel.org>,
<linux-kernel@vger.kernel.org>,
Manali Shukla <manali.shukla@amd.com>,
Santosh Shukla <santosh.shukla@amd.com>,
Ananth Narayan <ananth.narayan@amd.com>,
Sandipan Das <sandipan.das@amd.com>
Subject: [PATCH v3 7/8] perf amd ibs: Decode Streaming-store flag in IBS OP raw dump
Date: Fri, 8 May 2026 06:00:03 +0000 [thread overview]
Message-ID: <20260508060004.2575-8-ravi.bangoria@amd.com> (raw)
In-Reply-To: <20260508060004.2575-1-ravi.bangoria@amd.com>
IBS OP on Zen6 and future platform can tag IBS samples that originate from
streaming-store instruction. When the PMU advertises this feature,
interpret IBS_OP_DATA2[8] bit as the streaming store indicator and show
it in the raw dump output.
Signed-off-by: Ravi Bangoria <ravi.bangoria@amd.com>
---
tools/perf/util/amd-sample-raw.c | 18 ++++++++++++++----
1 file changed, 14 insertions(+), 4 deletions(-)
diff --git a/tools/perf/util/amd-sample-raw.c b/tools/perf/util/amd-sample-raw.c
index 3e5530008b14..394c061fbeb3 100644
--- a/tools/perf/util/amd-sample-raw.c
+++ b/tools/perf/util/amd-sample-raw.c
@@ -22,6 +22,7 @@ static bool zen4_ibs_extensions;
static bool ldlat_cap;
static bool dtlb_pgsize_cap;
static bool rmtsocket_cap;
+static bool strmst_cap;
/*
* Status fields of IBS_FETCH_CTL and IBS_FETCH_CTL_EXT are valid only if
@@ -166,12 +167,15 @@ static void pr_ibs_op_data2_extended(union ibs_op_data2 reg)
};
int data_src = (reg.data_src_hi << 3) | reg.data_src_lo;
char rmtsocket[sizeof("RmtSocket _ ")] = "";
+ char strmst[sizeof("StrmSt _ ")] = "";
if (rmtsocket_cap)
snprintf(rmtsocket, sizeof(rmtsocket), "RmtSocket %d ", reg.rmt_socket);
+ if (strmst_cap)
+ snprintf(strmst, sizeof(strmst), "StrmSt %d ", reg.strm_st);
- printf("ibs_op_data2:\t%016llx %s%sRmtNode %d%s\n", reg.val,
- rmtsocket,
+ printf("ibs_op_data2:\t%016llx %s%s%sRmtNode %d%s\n", reg.val,
+ rmtsocket, strmst,
(data_src == 1 || data_src == 2 || data_src == 5) ?
(reg.cache_hit_st ? "CacheHitSt 1=O-State " : "CacheHitSt 0=M-state ") : "",
reg.rmt_node,
@@ -191,12 +195,15 @@ static void pr_ibs_op_data2_default(union ibs_op_data2 reg)
" DataSrc 7=Other"
};
char rmtsocket[sizeof("RmtSocket _ ")] = "";
+ char strmst[sizeof("StrmSt _ ")] = "";
if (rmtsocket_cap)
snprintf(rmtsocket, sizeof(rmtsocket), "RmtSocket %d ", reg.rmt_socket);
+ if (strmst_cap)
+ snprintf(strmst, sizeof(strmst), "StrmSt %d ", reg.strm_st);
- printf("ibs_op_data2:\t%016llx %s%sRmtNode %d%s\n", reg.val,
- rmtsocket,
+ printf("ibs_op_data2:\t%016llx %s%s%sRmtNode %d%s\n", reg.val,
+ rmtsocket, strmst,
reg.data_src_lo == 2 ? (reg.cache_hit_st ? "CacheHitSt 1=O-State "
: "CacheHitSt 0=M-state ") : "",
reg.rmt_node, data_src_str[reg.data_src_lo]);
@@ -443,6 +450,9 @@ bool evlist__has_amd_ibs(struct evlist *evlist)
if (perf_env__find_pmu_cap(env, "ibs_op", "rmtsocket"))
rmtsocket_cap = 1;
+ if (perf_env__find_pmu_cap(env, "ibs_op", "strmst"))
+ strmst_cap = 1;
+
if (ibs_fetch_type || ibs_op_type) {
if (!cpu_family)
parse_cpuid(env);
--
2.43.0
next prev parent reply other threads:[~2026-05-08 6:01 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-08 5:59 [PATCH v3 0/8] perf tools amd ibs: Fixes + Zen6 enhancements Ravi Bangoria
2026-05-08 5:59 ` [PATCH v3 1/8] perf test amd ibs: Fix incorrect kernel version check Ravi Bangoria
2026-05-08 5:59 ` [PATCH v3 2/8] perf tool ibs: Sync AMD IBS header file Ravi Bangoria
2026-05-08 5:59 ` [PATCH v3 3/8] perf test ibs: Skip privilege test on Zen6 and newer platforms Ravi Bangoria
2026-05-08 6:00 ` [PATCH v3 4/8] perf amd ibs: Suppress bogus TlbRefillLat and DCPhysAd on Zen4+ Ravi Bangoria
2026-05-08 18:20 ` sashiko-bot
2026-05-12 8:49 ` Ravi Bangoria
2026-05-08 6:00 ` [PATCH v3 5/8] perf amd ibs: Make Fetch status bits dependent on PhyAddrValid for newer platforms Ravi Bangoria
2026-05-08 6:00 ` [PATCH v3 6/8] perf amd ibs: Decode Remote-Socket flag in IBS OP raw dump Ravi Bangoria
2026-05-08 6:00 ` Ravi Bangoria [this message]
2026-05-08 6:00 ` [PATCH v3 8/8] perf doc: Document new IBS capabilities in man page Ravi Bangoria
2026-05-10 6:41 ` [PATCH v3 0/8] perf tools amd ibs: Fixes + Zen6 enhancements Namhyung Kim
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