diff options
Diffstat (limited to 'tools/perf/pmu-events/jevents.py')
| -rwxr-xr-x | tools/perf/pmu-events/jevents.py | 330 |
1 files changed, 265 insertions, 65 deletions
diff --git a/tools/perf/pmu-events/jevents.py b/tools/perf/pmu-events/jevents.py index 12e80bb7939b..a7e88332276d 100755 --- a/tools/perf/pmu-events/jevents.py +++ b/tools/perf/pmu-events/jevents.py @@ -42,7 +42,7 @@ _metricgroups = {} # Order specific JsonEvent attributes will be visited. _json_event_attributes = [ # cmp_sevent related attributes. - 'name', 'pmu', 'topic', 'desc', + 'name', 'topic', 'desc', # Seems useful, put it early. 'event', # Short things in alphabetical order. @@ -53,7 +53,7 @@ _json_event_attributes = [ # Attributes that are in pmu_metric rather than pmu_event. _json_metric_attributes = [ - 'pmu', 'metric_name', 'metric_group', 'metric_expr', 'metric_threshold', + 'metric_name', 'metric_group', 'metric_expr', 'metric_threshold', 'desc', 'long_desc', 'unit', 'compat', 'metricgroup_no_group', 'default_metricgroup_name', 'aggr_mode', 'event_grouping' ] @@ -113,13 +113,24 @@ class BigCString: strings: Set[str] big_string: Sequence[str] offsets: Dict[str, int] + insert_number: int + insert_point: Dict[str, int] + metrics: Set[str] def __init__(self): self.strings = set() + self.insert_number = 0; + self.insert_point = {} + self.metrics = set() - def add(self, s: str) -> None: + def add(self, s: str, metric: bool) -> None: """Called to add to the big string.""" - self.strings.add(s) + if s not in self.strings: + self.strings.add(s) + self.insert_point[s] = self.insert_number + self.insert_number += 1 + if metric: + self.metrics.add(s) def compute(self) -> None: """Called once all strings are added to compute the string and offsets.""" @@ -160,8 +171,11 @@ class BigCString: self.big_string = [] self.offsets = {} + def string_cmp_key(s: str) -> Tuple[bool, int, str]: + return (s in self.metrics, self.insert_point[s], s) + # Emit all strings that aren't folded in a sorted manner. - for s in sorted(self.strings): + for s in sorted(self.strings, key=string_cmp_key): if s not in folded_strings: self.offsets[s] = big_string_offset self.big_string.append(f'/* offset={big_string_offset} */ "') @@ -252,7 +266,7 @@ class JsonEvent: def unit_to_pmu(unit: str) -> Optional[str]: """Convert a JSON Unit to Linux PMU name.""" if not unit: - return None + return 'default_core' # Comment brought over from jevents.c: # it's not realistic to keep adding these, we need something more scalable ... table = { @@ -274,6 +288,7 @@ class JsonEvent: 'DFPMC': 'amd_df', 'cpu_core': 'cpu_core', 'cpu_atom': 'cpu_atom', + 'ali_drw': 'ali_drw', } return table[unit] if unit in table else f'uncore_{unit.lower()}' @@ -342,16 +357,15 @@ class JsonEvent: self.desc += extra_desc if self.long_desc and extra_desc: self.long_desc += extra_desc - if self.pmu: - if self.desc and not self.desc.endswith('. '): - self.desc += '. ' - self.desc = (self.desc if self.desc else '') + ('Unit: ' + self.pmu + ' ') - if arch_std and arch_std.lower() in _arch_std_events: - event = _arch_std_events[arch_std.lower()].event - # Copy from the architecture standard event to self for undefined fields. - for attr, value in _arch_std_events[arch_std.lower()].__dict__.items(): - if hasattr(self, attr) and not getattr(self, attr): - setattr(self, attr, value) + if arch_std: + if arch_std.lower() in _arch_std_events: + event = _arch_std_events[arch_std.lower()].event + # Copy from the architecture standard event to self for undefined fields. + for attr, value in _arch_std_events[arch_std.lower()].__dict__.items(): + if hasattr(self, attr) and not getattr(self, attr): + setattr(self, attr, value) + else: + raise argparse.ArgumentTypeError('Cannot find arch std event:', arch_std) self.event = real_event(self.name, event) @@ -433,13 +447,13 @@ def add_events_table_entries(item: os.DirEntry, topic: str) -> None: def print_pending_events() -> None: """Optionally close events table.""" - def event_cmp_key(j: JsonEvent) -> Tuple[bool, str, str, str, str]: + def event_cmp_key(j: JsonEvent) -> Tuple[str, str, bool, str, str]: def fix_none(s: Optional[str]) -> str: if s is None: return '' return s - return (j.desc is not None, fix_none(j.topic), fix_none(j.name), fix_none(j.pmu), + return (fix_none(j.pmu).replace(',','_'), fix_none(j.name), j.desc is not None, fix_none(j.topic), fix_none(j.metric_name)) global _pending_events @@ -454,13 +468,36 @@ def print_pending_events() -> None: global event_tables _event_tables.append(_pending_events_tblname) - _args.output_file.write( - f'static const struct compact_pmu_event {_pending_events_tblname}[] = {{\n') - + first = True + last_pmu = None + pmus = set() for event in sorted(_pending_events, key=event_cmp_key): + if event.pmu != last_pmu: + if not first: + _args.output_file.write('};\n') + pmu_name = event.pmu.replace(',', '_') + _args.output_file.write( + f'static const struct compact_pmu_event {_pending_events_tblname}_{pmu_name}[] = {{\n') + first = False + last_pmu = event.pmu + pmus.add((event.pmu, pmu_name)) + _args.output_file.write(event.to_c_string(metric=False)) _pending_events = [] + _args.output_file.write(f""" +}}; + +const struct pmu_table_entry {_pending_events_tblname}[] = {{ +""") + for (pmu, tbl_pmu) in sorted(pmus): + pmu_name = f"{pmu}\\000" + _args.output_file.write(f"""{{ + .entries = {_pending_events_tblname}_{tbl_pmu}, + .num_entries = ARRAY_SIZE({_pending_events_tblname}_{tbl_pmu}), + .pmu_name = {{ {_bcs.offsets[pmu_name]} /* {pmu_name} */ }}, +}}, +""") _args.output_file.write('};\n\n') def print_pending_metrics() -> None: @@ -486,13 +523,36 @@ def print_pending_metrics() -> None: global metric_tables _metric_tables.append(_pending_metrics_tblname) - _args.output_file.write( - f'static const struct compact_pmu_event {_pending_metrics_tblname}[] = {{\n') - + first = True + last_pmu = None + pmus = set() for metric in sorted(_pending_metrics, key=metric_cmp_key): + if metric.pmu != last_pmu: + if not first: + _args.output_file.write('};\n') + pmu_name = metric.pmu.replace(',', '_') + _args.output_file.write( + f'static const struct compact_pmu_event {_pending_metrics_tblname}_{pmu_name}[] = {{\n') + first = False + last_pmu = metric.pmu + pmus.add((metric.pmu, pmu_name)) + _args.output_file.write(metric.to_c_string(metric=True)) _pending_metrics = [] + _args.output_file.write(f""" +}}; + +const struct pmu_table_entry {_pending_metrics_tblname}[] = {{ +""") + for (pmu, tbl_pmu) in sorted(pmus): + pmu_name = f"{pmu}\\000" + _args.output_file.write(f"""{{ + .entries = {_pending_metrics_tblname}_{tbl_pmu}, + .num_entries = ARRAY_SIZE({_pending_metrics_tblname}_{tbl_pmu}), + .pmu_name = {{ {_bcs.offsets[pmu_name]} /* {pmu_name} */ }}, +}}, +""") _args.output_file.write('};\n\n') def get_topic(topic: str) -> str: @@ -521,17 +581,20 @@ def preprocess_one_file(parents: Sequence[str], item: os.DirEntry) -> None: assert len(mgroup) > 1, parents description = f"{metricgroup_descriptions[mgroup]}\\000" mgroup = f"{mgroup}\\000" - _bcs.add(mgroup) - _bcs.add(description) + _bcs.add(mgroup, metric=True) + _bcs.add(description, metric=True) _metricgroups[mgroup] = description return topic = get_topic(item.name) for event in read_json_events(item.path, topic): + pmu_name = f"{event.pmu}\\000" if event.name: - _bcs.add(event.build_c_string(metric=False)) + _bcs.add(pmu_name, metric=False) + _bcs.add(event.build_c_string(metric=False), metric=False) if event.metric_name: - _bcs.add(event.build_c_string(metric=True)) + _bcs.add(pmu_name, metric=True) + _bcs.add(event.build_c_string(metric=True), metric=True) def process_one_file(parents: Sequence[str], item: os.DirEntry) -> None: """Process a JSON file during the main walk.""" @@ -573,14 +636,14 @@ def print_mapping_table(archs: Sequence[str]) -> None: _args.output_file.write(""" /* Struct used to make the PMU event table implementation opaque to callers. */ struct pmu_events_table { - const struct compact_pmu_event *entries; - size_t length; + const struct pmu_table_entry *pmus; + uint32_t num_pmus; }; /* Struct used to make the PMU metric table implementation opaque to callers. */ struct pmu_metrics_table { - const struct compact_pmu_event *entries; - size_t length; + const struct pmu_table_entry *pmus; + uint32_t num_pmus; }; /* @@ -610,12 +673,12 @@ const struct pmu_events_map pmu_events_map[] = { \t.arch = "testarch", \t.cpuid = "testcpu", \t.event_table = { -\t\t.entries = pmu_events__test_soc_cpu, -\t\t.length = ARRAY_SIZE(pmu_events__test_soc_cpu), +\t\t.pmus = pmu_events__test_soc_cpu, +\t\t.num_pmus = ARRAY_SIZE(pmu_events__test_soc_cpu), \t}, \t.metric_table = { -\t\t.entries = pmu_metrics__test_soc_cpu, -\t\t.length = ARRAY_SIZE(pmu_metrics__test_soc_cpu), +\t\t.pmus = pmu_metrics__test_soc_cpu, +\t\t.num_pmus = ARRAY_SIZE(pmu_metrics__test_soc_cpu), \t} }, """) @@ -645,12 +708,12 @@ const struct pmu_events_map pmu_events_map[] = { \t.arch = "{arch}", \t.cpuid = "{cpuid}", \t.event_table = {{ -\t\t.entries = {event_tblname}, -\t\t.length = {event_size} +\t\t.pmus = {event_tblname}, +\t\t.num_pmus = {event_size} \t}}, \t.metric_table = {{ -\t\t.entries = {metric_tblname}, -\t\t.length = {metric_size} +\t\t.pmus = {metric_tblname}, +\t\t.num_pmus = {metric_size} \t}} }}, """) @@ -681,15 +744,15 @@ static const struct pmu_sys_events pmu_sys_event_tables[] = { for tblname in _sys_event_tables: _args.output_file.write(f"""\t{{ \t\t.event_table = {{ -\t\t\t.entries = {tblname}, -\t\t\t.length = ARRAY_SIZE({tblname}) +\t\t\t.pmus = {tblname}, +\t\t\t.num_pmus = ARRAY_SIZE({tblname}) \t\t}},""") metric_tblname = _sys_event_table_to_metric_table_mapping[tblname] if metric_tblname in _sys_metric_tables: _args.output_file.write(f""" \t\t.metric_table = {{ -\t\t\t.entries = {metric_tblname}, -\t\t\t.length = ARRAY_SIZE({metric_tblname}) +\t\t\t.pmus = {metric_tblname}, +\t\t\t.num_pmus = ARRAY_SIZE({metric_tblname}) \t\t}},""") printed_metric_tables.append(metric_tblname) _args.output_file.write(f""" @@ -749,15 +812,18 @@ static void decompress_metric(int offset, struct pmu_metric *pm) _args.output_file.write('\twhile (*p++);') _args.output_file.write("""} -int pmu_events_table_for_each_event(const struct pmu_events_table *table, - pmu_event_iter_fn fn, - void *data) +static int pmu_events_table__for_each_event_pmu(const struct pmu_events_table *table, + const struct pmu_table_entry *pmu, + pmu_event_iter_fn fn, + void *data) { - for (size_t i = 0; i < table->length; i++) { - struct pmu_event pe; - int ret; + int ret; + struct pmu_event pe = { + .pmu = &big_c_string[pmu->pmu_name.offset], + }; - decompress_event(table->entries[i].offset, &pe); + for (uint32_t i = 0; i < pmu->num_entries; i++) { + decompress_event(pmu->entries[i].offset, &pe); if (!pe.name) continue; ret = fn(&pe, table, data); @@ -765,17 +831,119 @@ int pmu_events_table_for_each_event(const struct pmu_events_table *table, return ret; } return 0; + } + +static int pmu_events_table__find_event_pmu(const struct pmu_events_table *table, + const struct pmu_table_entry *pmu, + const char *name, + pmu_event_iter_fn fn, + void *data) +{ + struct pmu_event pe = { + .pmu = &big_c_string[pmu->pmu_name.offset], + }; + int low = 0, high = pmu->num_entries - 1; + + while (low <= high) { + int cmp, mid = (low + high) / 2; + + decompress_event(pmu->entries[mid].offset, &pe); + + if (!pe.name && !name) + goto do_call; + + if (!pe.name && name) { + low = mid + 1; + continue; + } + if (pe.name && !name) { + high = mid - 1; + continue; + } + + cmp = strcasecmp(pe.name, name); + if (cmp < 0) { + low = mid + 1; + continue; + } + if (cmp > 0) { + high = mid - 1; + continue; + } + do_call: + return fn ? fn(&pe, table, data) : 0; + } + return -1000; } -int pmu_metrics_table_for_each_metric(const struct pmu_metrics_table *table, - pmu_metric_iter_fn fn, - void *data) +int pmu_events_table__for_each_event(const struct pmu_events_table *table, + struct perf_pmu *pmu, + pmu_event_iter_fn fn, + void *data) +{ + for (size_t i = 0; i < table->num_pmus; i++) { + const struct pmu_table_entry *table_pmu = &table->pmus[i]; + const char *pmu_name = &big_c_string[table_pmu->pmu_name.offset]; + int ret; + + if (pmu && !pmu__name_match(pmu, pmu_name)) + continue; + + ret = pmu_events_table__for_each_event_pmu(table, table_pmu, fn, data); + if (pmu || ret) + return ret; + } + return 0; +} + +int pmu_events_table__find_event(const struct pmu_events_table *table, + struct perf_pmu *pmu, + const char *name, + pmu_event_iter_fn fn, + void *data) { - for (size_t i = 0; i < table->length; i++) { - struct pmu_metric pm; + for (size_t i = 0; i < table->num_pmus; i++) { + const struct pmu_table_entry *table_pmu = &table->pmus[i]; + const char *pmu_name = &big_c_string[table_pmu->pmu_name.offset]; int ret; - decompress_metric(table->entries[i].offset, &pm); + if (!pmu__name_match(pmu, pmu_name)) + continue; + + ret = pmu_events_table__find_event_pmu(table, table_pmu, name, fn, data); + if (ret != -1000) + return ret; + } + return -1000; +} + +size_t pmu_events_table__num_events(const struct pmu_events_table *table, + struct perf_pmu *pmu) +{ + size_t count = 0; + + for (size_t i = 0; i < table->num_pmus; i++) { + const struct pmu_table_entry *table_pmu = &table->pmus[i]; + const char *pmu_name = &big_c_string[table_pmu->pmu_name.offset]; + + if (pmu__name_match(pmu, pmu_name)) + count += table_pmu->num_entries; + } + return count; +} + +static int pmu_metrics_table__for_each_metric_pmu(const struct pmu_metrics_table *table, + const struct pmu_table_entry *pmu, + pmu_metric_iter_fn fn, + void *data) +{ + int ret; + struct pmu_metric pm = { + .pmu = &big_c_string[pmu->pmu_name.offset], + }; + + for (uint32_t i = 0; i < pmu->num_entries; i++) { + decompress_metric(pmu->entries[i].offset, &pm); if (!pm.metric_expr) continue; ret = fn(&pm, table, data); @@ -785,11 +953,25 @@ int pmu_metrics_table_for_each_metric(const struct pmu_metrics_table *table, return 0; } +int pmu_metrics_table__for_each_metric(const struct pmu_metrics_table *table, + pmu_metric_iter_fn fn, + void *data) +{ + for (size_t i = 0; i < table->num_pmus; i++) { + int ret = pmu_metrics_table__for_each_metric_pmu(table, &table->pmus[i], + fn, data); + + if (ret) + return ret; + } + return 0; +} + const struct pmu_events_table *perf_pmu__find_events_table(struct perf_pmu *pmu) { const struct pmu_events_table *table = NULL; char *cpuid = perf_pmu__getcpuid(pmu); - int i; + size_t i; /* on some platforms which uses cpus map, cpuid can be NULL for * PMUs other than CORE PMUs. @@ -809,7 +991,17 @@ const struct pmu_events_table *perf_pmu__find_events_table(struct perf_pmu *pmu) } } free(cpuid); - return table; + if (!pmu) + return table; + + for (i = 0; i < table->num_pmus; i++) { + const struct pmu_table_entry *table_pmu = &table->pmus[i]; + const char *pmu_name = &big_c_string[table_pmu->pmu_name.offset]; + + if (pmu__name_match(pmu, pmu_name)) + return table; + } + return NULL; } const struct pmu_metrics_table *perf_pmu__find_metrics_table(struct perf_pmu *pmu) @@ -866,7 +1058,8 @@ int pmu_for_each_core_event(pmu_event_iter_fn fn, void *data) for (const struct pmu_events_map *tables = &pmu_events_map[0]; tables->arch; tables++) { - int ret = pmu_events_table_for_each_event(&tables->event_table, fn, data); + int ret = pmu_events_table__for_each_event(&tables->event_table, + /*pmu=*/ NULL, fn, data); if (ret) return ret; @@ -879,7 +1072,7 @@ int pmu_for_each_core_metric(pmu_metric_iter_fn fn, void *data) for (const struct pmu_events_map *tables = &pmu_events_map[0]; tables->arch; tables++) { - int ret = pmu_metrics_table_for_each_metric(&tables->metric_table, fn, data); + int ret = pmu_metrics_table__for_each_metric(&tables->metric_table, fn, data); if (ret) return ret; @@ -903,7 +1096,8 @@ int pmu_for_each_sys_event(pmu_event_iter_fn fn, void *data) for (const struct pmu_sys_events *tables = &pmu_sys_event_tables[0]; tables->name; tables++) { - int ret = pmu_events_table_for_each_event(&tables->event_table, fn, data); + int ret = pmu_events_table__for_each_event(&tables->event_table, + /*pmu=*/ NULL, fn, data); if (ret) return ret; @@ -916,7 +1110,7 @@ int pmu_for_each_sys_metric(pmu_metric_iter_fn fn, void *data) for (const struct pmu_sys_events *tables = &pmu_sys_event_tables[0]; tables->name; tables++) { - int ret = pmu_metrics_table_for_each_metric(&tables->metric_table, fn, data); + int ret = pmu_metrics_table__for_each_metric(&tables->metric_table, fn, data); if (ret) return ret; @@ -999,14 +1193,20 @@ such as "arm/cortex-a34".''', _args = ap.parse_args() _args.output_file.write(""" -#include "pmu-events/pmu-events.h" +#include <pmu-events/pmu-events.h> #include "util/header.h" #include "util/pmu.h" #include <string.h> #include <stddef.h> struct compact_pmu_event { - int offset; + int offset; +}; + +struct pmu_table_entry { + const struct compact_pmu_event *entries; + uint32_t num_entries; + struct compact_pmu_event pmu_name; }; """) |