perf header: Pass a perf_cpu rather than a PMU to get_cpuid_str

On ARM the cpuid is dependent on the core type of the CPU in
question. The PMU was passed for the sake of the CPU map but this
means in places a temporary PMU is created just to pass a CPU
value. Just pass the CPU and fix up the callers.

As there are no longer PMU users in header.h, shuffle forward
declarations earlier to work around build failures.

Reviewed-by: James Clark <james.clark@linaro.org>
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Xu Yang <xu.yang_2@nxp.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexandre Ghiti <alexghiti@rivosinc.com>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ben Zong-You Xie <ben717@andestech.com>
Cc: Benjamin Gray <bgray@linux.ibm.com>
Cc: Bibo Mao <maobibo@loongson.cn>
Cc: Clément Le Goffic <clement.legoffic@foss.st.com>
Cc: Dima Kogan <dima@secretsauce.net>
Cc: Dr. David Alan Gilbert <linux@treblig.org>
Cc: Huacai Chen <chenhuacai@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linux.dev>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Sandipan Das <sandipan.das@amd.com>
Cc: Will Deacon <will@kernel.org>
Cc: Yicong Yang <yangyicong@hisilicon.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-riscv@lists.infradead.org
Link: https://lore.kernel.org/r/20241107162035.52206-7-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

2 files changed, 8 insertions, 2 deletions

diff --git a/tools/perf/pmu-events/empty-pmu-events.c b/tools/perf/pmu-events/empty-pmu-events.c
index b8719dab264d..51ca8d61c15d 100644
--- a/tools/perf/pmu-events/empty-pmu-events.c
+++ b/tools/perf/pmu-events/empty-pmu-events.c
@@ -515,13 +515,16 @@ static const struct pmu_events_map *map_for_pmu(struct perf_pmu *pmu)
         } last_map_search;
         static bool has_last_result, has_last_map_search;
         const struct pmu_events_map *map = NULL;
+        struct perf_cpu cpu = {-1};
         char *cpuid = NULL;
         size_t i;
 
         if (has_last_result && last_result.pmu == pmu)
                 return last_result.map;
 
-        cpuid = perf_pmu__getcpuid(pmu);
+        if (pmu)
+                cpu = perf_cpu_map__min(pmu->cpus);
+        cpuid = get_cpuid_allow_env_override(cpu);
 
         /*
          * On some platforms which uses cpus map, cpuid can be NULL for
diff --git a/tools/perf/pmu-events/jevents.py b/tools/perf/pmu-events/jevents.py
index 70f4fd5395fb..b5ff872e2beb 100755
--- a/tools/perf/pmu-events/jevents.py
+++ b/tools/perf/pmu-events/jevents.py
@@ -1031,13 +1031,16 @@ static const struct pmu_events_map *map_for_pmu(struct perf_pmu *pmu)
         } last_map_search;
         static bool has_last_result, has_last_map_search;
         const struct pmu_events_map *map = NULL;
+        struct perf_cpu cpu = {-1};
         char *cpuid = NULL;
         size_t i;
 
         if (has_last_result && last_result.pmu == pmu)
                 return last_result.map;
 
-        cpuid = perf_pmu__getcpuid(pmu);
+        if (pmu)
+                cpu = perf_cpu_map__min(pmu->cpus);
+        cpuid = get_cpuid_allow_env_override(cpu);
 
         /*
          * On some platforms which uses cpus map, cpuid can be NULL for