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perf amd ibs: Decode Remote-Socket flag in IBS OP raw dump

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IBS OP on Zen6 and future platform can mark a data source as coming from
a remote socket. When the PMU advertises this feature, interpret
IBS_OP_DATA2[9] bit as the Remote-Socket indicator and show it in the
raw dump output.

Signed-off-by: Ravi Bangoria <ravi.bangoria@amd.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Ananth Narayan <ananth.narayan@amd.com>
Cc: Dapeng Mi <dapeng1.mi@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Manali Shukla <manali.shukla@amd.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sandipan Das <sandipan.das@amd.com>
Cc: Santosh Shukla <santosh.shukla@amd.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Ravi Bangoria 2026-05-08 06:00:02 +00:00 committed by Arnaldo Carvalho de Melo
parent ea0ce2e12e
commit 7c04195cce
1 changed files with 16 additions and 2 deletions
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18
tools/perf/util/amd-sample-raw.c
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@ -21,6 +21,7 @@ static u32 cpu_family, cpu_model, ibs_fetch_type, ibs_op_type;
static bool zen4_ibs_extensions;
static bool ldlat_cap;
static bool dtlb_pgsize_cap;
static bool rmtsocket_cap;
/*
* Status fields of IBS_FETCH_CTL and IBS_FETCH_CTL_EXT are valid only if
@ -164,8 +165,13 @@ static void pr_ibs_op_data2_extended(union ibs_op_data2 reg)
/* 13 to 31 are reserved. Avoid printing them. */
};
int data_src = (reg.data_src_hi << 3) | reg.data_src_lo;
char rmtsocket[sizeof("RmtSocket _ ")] = "";
printf("ibs_op_data2:\t%016llx %sRmtNode %d%s\n", reg.val,
if (rmtsocket_cap)
snprintf(rmtsocket, sizeof(rmtsocket), "RmtSocket %d ", reg.rmt_socket);
printf("ibs_op_data2:\t%016llx %s%sRmtNode %d%s\n", reg.val,
rmtsocket,
(data_src == 1 || data_src == 2 || data_src == 5) ?
(reg.cache_hit_st ? "CacheHitSt 1=O-State " : "CacheHitSt 0=M-state ") : "",
reg.rmt_node,
@ -184,8 +190,13 @@ static void pr_ibs_op_data2_default(union ibs_op_data2 reg)
" DataSrc 6=(reserved)",
" DataSrc 7=Other"
};
char rmtsocket[sizeof("RmtSocket _ ")] = "";
printf("ibs_op_data2:\t%016llx %sRmtNode %d%s\n", reg.val,
if (rmtsocket_cap)
snprintf(rmtsocket, sizeof(rmtsocket), "RmtSocket %d ", reg.rmt_socket);
printf("ibs_op_data2:\t%016llx %s%sRmtNode %d%s\n", reg.val,
rmtsocket,
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]);
@ -429,6 +440,9 @@ bool evlist__has_amd_ibs(struct evlist *evlist)
if (perf_env__find_pmu_cap(env, "ibs_op", "dtlb_pgsize"))
dtlb_pgsize_cap = 1;
if (perf_env__find_pmu_cap(env, "ibs_op", "rmtsocket"))
rmtsocket_cap = 1;
if (ibs_fetch_type || ibs_op_type) {
if (!cpu_family)
parse_cpuid(env);