forked from Minki/linux
4689f56796
Process the JSONs to find support for "system" events, which are not
tied to a specific CPUID.
A "COMPAT" property is now used to match against the namespace ID from
the kernel PMU driver.
The generated pmu-events.c will now have 2 tables:
a. CPU events, as before.
b. New pmu_sys_event_tables[] table, which will have events matched to
specific SoCs.
It will look like this:
struct pmu_event pme_hisilicon_hip09_sys[] = {
{
.name = "cycles",
.compat = "0x00030736",
.event = "event=0",
.desc = "Clock cycles",
.topic = "smmu v3 pmcg",
.long_desc = "Clock cycles",
},
{
.name = "smmuv3_pmcg.l1_tlb",
.compat = "0x00030736",
.event = "event=0x8a",
.desc = "SMMUv3 PMCG l1_tlb. Unit: smmuv3_pmcg ",
.topic = "smmu v3 pmcg",
.long_desc = "SMMUv3 PMCG l1_tlb",
.pmu = "smmuv3_pmcg",
},
...
};
struct pmu_event pme_arm_cortex_a53[] = {
{
.name = "ext_mem_req",
.event = "event=0xc0",
.desc = "External memory request",
.topic = "memory",
},
{
.name = "ext_mem_req_nc",
.event = "event=0xc1",
.desc = "Non-cacheable external memory request",
.topic = "memory",
},
...
};
struct pmu_event pme_hisilicon_hip09_cpu[] = {
{
.name = "l2d_cache_refill_wr",
.event = "event=0x53",
.desc = "L2D cache refill, write",
.topic = "core imp def",
.long_desc = "Attributable Level 2 data cache refill, write",
},
...
};
struct pmu_events_map pmu_events_map[] = {
{
.cpuid = "0x00000000410fd030",
.version = "v1",
.type = "core",
.table = pme_arm_cortex_a53
},
{
.cpuid = "0x00000000480fd010",
.version = "v1",
.type = "core",
.table = pme_hisilicon_hip09_cpu
},
{
.table = 0
},
};
struct pmu_event pme_hisilicon_hip09_cpu[] = {
{
.name = "uncore_hisi_l3c.rd_cpipe",
.event = "event=0",
.desc = "Total read accesses. Unit: hisi_sccl,l3c ",
.topic = "uncore l3c",
.long_desc = "Total read accesses",
.pmu = "hisi_sccl,l3c",
},
{
.name = "uncore_hisi_l3c.wr_cpipe",
.event = "event=0x1",
.desc = "Total write accesses. Unit: hisi_sccl,l3c ",
.topic = "uncore l3c",
.long_desc = "Total write accesses",
.pmu = "hisi_sccl,l3c",
},
...
};
struct pmu_sys_events pmu_sys_event_tables[] = {
{
.table = pme_hisilicon_hip09_sys,
},
...
};
Committer notes:
Added the fix for architectures without PMU events, provided by John
after I reported the build failing in such systems.
Link: https://lore.kernel.org/lkml/650baaf2-36b6-a9e2-ff49-963ef864c1f3@huawei.com/
Signed-off-by: John Garry <john.garry@huawei.com>
Acked-by: Kajol Jain <kjain@linux.ibm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Joakim Zhang <qiangqing.zhang@nxp.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Kim Phillips <kim.phillips@amd.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Shaokun Zhang <zhangshaokun@hisilicon.com>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linuxarm@huawei.com
Link: http://lore.kernel.org/lkml/1607080216-36968-3-git-send-email-john.garry@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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|---|---|---|
| .. | ||
| arch | ||
| bench | ||
| Documentation | ||
| examples/bpf | ||
| include/bpf | ||
| jvmti | ||
| pmu-events | ||
| python | ||
| scripts | ||
| tests | ||
| trace | ||
| ui | ||
| util | ||
| .gitignore | ||
| Build | ||
| builtin-annotate.c | ||
| builtin-bench.c | ||
| builtin-buildid-cache.c | ||
| builtin-buildid-list.c | ||
| builtin-c2c.c | ||
| builtin-config.c | ||
| builtin-data.c | ||
| builtin-diff.c | ||
| builtin-evlist.c | ||
| builtin-ftrace.c | ||
| builtin-help.c | ||
| builtin-inject.c | ||
| builtin-kallsyms.c | ||
| builtin-kmem.c | ||
| builtin-kvm.c | ||
| builtin-list.c | ||
| builtin-lock.c | ||
| builtin-mem.c | ||
| builtin-probe.c | ||
| builtin-record.c | ||
| builtin-report.c | ||
| builtin-sched.c | ||
| builtin-script.c | ||
| builtin-stat.c | ||
| builtin-timechart.c | ||
| builtin-top.c | ||
| builtin-trace.c | ||
| builtin-version.c | ||
| builtin.h | ||
| check-headers.sh | ||
| command-list.txt | ||
| CREDITS | ||
| design.txt | ||
| Makefile | ||
| Makefile.config | ||
| Makefile.perf | ||
| MANIFEST | ||
| perf-archive.sh | ||
| perf-completion.sh | ||
| perf-read-vdso.c | ||
| perf-sys.h | ||
| perf-with-kcore.sh | ||
| perf.c | ||
| perf.h | ||