perf jevents: Switch build to use jevents.py

Generate pmu-events.c using jevents.py rather than the binary built from
jevents.c.

Add a new config variable NO_JEVENTS that is set when there is no
architecture json or an appropriate python interpreter isn't present.

When NO_JEVENTS is defined the file pmu-events/empty-pmu-events.c is
copied and used as the pmu-events.c file.

Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: John Garry <john.garry@huawei.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ananth Narayan <ananth.narayan@amd.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andrew Kilroy <andrew.kilroy@arm.com>
Cc: Caleb Biggers <caleb.biggers@intel.com>
Cc: Felix Fietkau <nbd@nbd.name>
Cc: Ian Rogers <rogers.email@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Kshipra Bopardikar <kshipra.bopardikar@intel.com>
Cc: Like Xu <likexu@tencent.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nick Forrington <nick.forrington@arm.com>
Cc: Paul Clarke <pc@us.ibm.com>
Cc: Perry Taylor <perry.taylor@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Qi Liu <liuqi115@huawei.com>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Sandipan Das <sandipan.das@amd.com>
Cc: Santosh Shukla <santosh.shukla@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Will Deacon <will@kernel.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20220629182505.406269-4-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 158 insertions, 0 deletions

diff --git a/tools/perf/pmu-events/empty-pmu-events.c b/tools/perf/pmu-events/empty-pmu-events.c
new file mode 100644
index 000000000000..77e655c6f116
--- /dev/null
+++ b/tools/perf/pmu-events/empty-pmu-events.c
@@ -0,0 +1,158 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * An empty pmu-events.c file used when there is no architecture json files in
+ * arch or when the jevents.py script cannot be run.
+ *
+ * The test cpu/soc is provided for testing.
+ */
+#include "pmu-events/pmu-events.h"
+
+static const struct pmu_event pme_test_soc_cpu[] = {
+	{
+		.name = "l3_cache_rd",
+		.event = "event=0x40",
+		.desc = "L3 cache access, read",
+		.topic = "cache",
+		.long_desc = "Attributable Level 3 cache access, read",
+	},
+	{
+		.name = "segment_reg_loads.any",
+		.event = "event=0x6,period=200000,umask=0x80",
+		.desc = "Number of segment register loads",
+		.topic = "other",
+	},
+	{
+		.name = "dispatch_blocked.any",
+		.event = "event=0x9,period=200000,umask=0x20",
+		.desc = "Memory cluster signals to block micro-op dispatch for any reason",
+		.topic = "other",
+	},
+	{
+		.name = "eist_trans",
+		.event = "event=0x3a,period=200000,umask=0x0",
+		.desc = "Number of Enhanced Intel SpeedStep(R) Technology (EIST) transitions",
+		.topic = "other",
+	},
+	{
+		.name = "uncore_hisi_ddrc.flux_wcmd",
+		.event = "event=0x2",
+		.desc = "DDRC write commands. Unit: hisi_sccl,ddrc ",
+		.topic = "uncore",
+		.long_desc = "DDRC write commands",
+		.pmu = "hisi_sccl,ddrc",
+	},
+	{
+		.name = "unc_cbo_xsnp_response.miss_eviction",
+		.event = "event=0x22,umask=0x81",
+		.desc = "A cross-core snoop resulted from L3 Eviction which misses in some processor core. Unit: uncore_cbox ",
+		.topic = "uncore",
+		.long_desc = "A cross-core snoop resulted from L3 Eviction which misses in some processor core",
+		.pmu = "uncore_cbox",
+	},
+	{
+		.name = "event-hyphen",
+		.event = "event=0xe0,umask=0x00",
+		.desc = "UNC_CBO_HYPHEN. Unit: uncore_cbox ",
+		.topic = "uncore",
+		.long_desc = "UNC_CBO_HYPHEN",
+		.pmu = "uncore_cbox",
+	},
+	{
+		.name = "event-two-hyph",
+		.event = "event=0xc0,umask=0x00",
+		.desc = "UNC_CBO_TWO_HYPH. Unit: uncore_cbox ",
+		.topic = "uncore",
+		.long_desc = "UNC_CBO_TWO_HYPH",
+		.pmu = "uncore_cbox",
+	},
+	{
+		.name = "uncore_hisi_l3c.rd_hit_cpipe",
+		.event = "event=0x7",
+		.desc = "Total read hits. Unit: hisi_sccl,l3c ",
+		.topic = "uncore",
+		.long_desc = "Total read hits",
+		.pmu = "hisi_sccl,l3c",
+	},
+	{
+		.name = "uncore_imc_free_running.cache_miss",
+		.event = "event=0x12",
+		.desc = "Total cache misses. Unit: uncore_imc_free_running ",
+		.topic = "uncore",
+		.long_desc = "Total cache misses",
+		.pmu = "uncore_imc_free_running",
+	},
+	{
+		.name = "uncore_imc.cache_hits",
+		.event = "event=0x34",
+		.desc = "Total cache hits. Unit: uncore_imc ",
+		.topic = "uncore",
+		.long_desc = "Total cache hits",
+		.pmu = "uncore_imc",
+	},
+	{
+		.name = "bp_l1_btb_correct",
+		.event = "event=0x8a",
+		.desc = "L1 BTB Correction",
+		.topic = "branch",
+	},
+	{
+		.name = "bp_l2_btb_correct",
+		.event = "event=0x8b",
+		.desc = "L2 BTB Correction",
+		.topic = "branch",
+	},
+	{
+		.name = 0,
+		.event = 0,
+		.desc = 0,
+	},
+};
+
+const struct pmu_events_map pmu_events_map[] = {
+	{
+		.cpuid = "testcpu",
+		.version = "v1",
+		.type = "core",
+		.table = pme_test_soc_cpu,
+	},
+	{
+		.cpuid = 0,
+		.version = 0,
+		.type = 0,
+		.table = 0,
+	},
+};
+
+static const struct pmu_event pme_test_soc_sys[] = {
+	{
+		.name = "sys_ddr_pmu.write_cycles",
+		.event = "event=0x2b",
+		.desc = "ddr write-cycles event. Unit: uncore_sys_ddr_pmu ",
+		.compat = "v8",
+		.topic = "uncore",
+		.pmu = "uncore_sys_ddr_pmu",
+	},
+	{
+		.name = "sys_ccn_pmu.read_cycles",
+		.event = "config=0x2c",
+		.desc = "ccn read-cycles event. Unit: uncore_sys_ccn_pmu ",
+		.compat = "0x01",
+		.topic = "uncore",
+		.pmu = "uncore_sys_ccn_pmu",
+	},
+	{
+		.name = 0,
+		.event = 0,
+		.desc = 0,
+	},
+};
+
+const struct pmu_sys_events pmu_sys_event_tables[] = {
+	{
+		.table = pme_test_soc_sys,
+		.name = "pme_test_soc_sys",
+	},
+	{
+		.table = 0
+	},
+};