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Subject[PATCH 11/13 v4] perf tools: Add separate die member
Date
Add die as a separate member so that it doesn't have to be
packed into the int value.

Signed-off-by: James Clark <james.clark@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: John Garry <john.garry@huawei.com>
---
tools/perf/builtin-stat.c | 14 +++-----------
tools/perf/tests/topology.c | 7 +++++--
tools/perf/util/cpumap.c | 28 ++++++++++++++--------------
tools/perf/util/cpumap.h | 6 +-----
tools/perf/util/stat-display.c | 6 +++---
5 files changed, 26 insertions(+), 35 deletions(-)

diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 193e7a4e0c7b..514144dad8b1 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -1389,11 +1389,7 @@ static struct aggr_cpu_id perf_env__get_die(struct perf_cpu_map *map, int idx, v
* make a unique ID.
*/
id.socket = env->cpu[cpu].socket_id;
-
- if (WARN_ONCE(env->cpu[cpu].die_id >> 8, "The die id number is too big.\n"))
- return cpu_map__empty_aggr_cpu_id();
-
- id.id = env->cpu[cpu].die_id & 0xff;
+ id.die = env->cpu[cpu].die_id;
}

return id;
@@ -1407,20 +1403,16 @@ static struct aggr_cpu_id perf_env__get_core(struct perf_cpu_map *map, int idx,

if (cpu != -1) {
/*
- * encode die id in bit range 23:16
* core_id is relative to socket and die,
* we need a global id. So we combine
* socket + die id + core id
*/
- if (WARN_ONCE(env->cpu[cpu].die_id >> 8, "The die id number is too big.\n"))
- return cpu_map__empty_aggr_cpu_id();
-
if (WARN_ONCE(env->cpu[cpu].core_id >> 16, "The core id number is too big.\n"))
return cpu_map__empty_aggr_cpu_id();

id.socket = env->cpu[cpu].socket_id;
- id.id = (env->cpu[cpu].die_id << 16) |
- (env->cpu[cpu].core_id & 0xffff);
+ id.die = env->cpu[cpu].die_id;
+ id.id = env->cpu[cpu].core_id & 0xffff;
}

return id;
diff --git a/tools/perf/tests/topology.c b/tools/perf/tests/topology.c
index afefe7456385..1256cf63d4d0 100644
--- a/tools/perf/tests/topology.c
+++ b/tools/perf/tests/topology.c
@@ -117,7 +117,7 @@ static int check_cpu_topology(char *path, struct perf_cpu_map *map)
session->header.env.cpu[map->map[i]].socket_id == id.socket);

TEST_ASSERT_VAL("Core map - Die ID doesn't match",
- session->header.env.cpu[map->map[i]].die_id == cpu_map__id_to_die(id.id));
+ session->header.env.cpu[map->map[i]].die_id == id.die);
TEST_ASSERT_VAL("Core map - Node ID is set", id.node == -1);
}

@@ -128,8 +128,9 @@ static int check_cpu_topology(char *path, struct perf_cpu_map *map)
session->header.env.cpu[map->map[i]].socket_id == id.socket);

TEST_ASSERT_VAL("Die map - Die ID doesn't match",
- session->header.env.cpu[map->map[i]].die_id == cpu_map__id_to_die(id.id));
+ session->header.env.cpu[map->map[i]].die_id == id.die);
TEST_ASSERT_VAL("Die map - Node ID is set", id.node == -1);
+ TEST_ASSERT_VAL("Die map - ID is set", id.id == -1);
}

// Test that socket ID contains only socket
@@ -138,6 +139,7 @@ static int check_cpu_topology(char *path, struct perf_cpu_map *map)
TEST_ASSERT_VAL("Socket map - Socket ID doesn't match",
session->header.env.cpu[map->map[i]].socket_id == id.socket);
TEST_ASSERT_VAL("Socket map - Node ID is set", id.node == -1);
+ TEST_ASSERT_VAL("Socket map - Die ID is set", id.die == -1);
TEST_ASSERT_VAL("Socket map - ID is set", id.id == -1);
}

@@ -147,6 +149,7 @@ static int check_cpu_topology(char *path, struct perf_cpu_map *map)
TEST_ASSERT_VAL("Node map - Node ID doesn't match",
cpu__get_node(map->map[i]) == id.node);
TEST_ASSERT_VAL("Node map - ID shouldn't be set", id.id == -1);
+ TEST_ASSERT_VAL("Node map - Die ID is set", id.die == -1);
}
perf_session__delete(session);

diff --git a/tools/perf/util/cpumap.c b/tools/perf/util/cpumap.c
index 233b752cb469..c1d3539222f2 100644
--- a/tools/perf/util/cpumap.c
+++ b/tools/perf/util/cpumap.c
@@ -152,8 +152,10 @@ static int cmp_aggr_cpu_id(const void *a_pointer, const void *b_pointer)
return a->id - b->id;
else if (a->node != b->node)
return a->node - b->node;
- else
+ else if (a->socket != b->socket)
return a->socket - b->socket;
+ else
+ return a->die - b->die;
}

int cpu_map__build_map(struct perf_cpu_map *cpus, struct cpu_aggr_map **res,
@@ -221,10 +223,7 @@ struct aggr_cpu_id cpu_map__get_die(struct perf_cpu_map *map, int idx, void *dat
if (cpu_map__aggr_cpu_id_is_empty(id))
return id;

- if (WARN_ONCE(die >> 8, "The die id number is too big.\n"))
- return cpu_map__empty_aggr_cpu_id();
-
- id.id = (die & 0xff);
+ id.die = die;
return id;
}

@@ -251,21 +250,19 @@ struct aggr_cpu_id cpu_map__get_core(struct perf_cpu_map *map, int idx, void *da

cpu = cpu_map__get_core_id(cpu);

- /* cpu_map__get_die returns the combination of socket + die id */
+ /* cpu_map__get_die returns a struct with socket and die set*/
id = cpu_map__get_die(map, idx, data);
if (cpu_map__aggr_cpu_id_is_empty(id))
return id;

/*
- * encode die id in bit range 23:16
- * core_id is relative to socket and die,
- * we need a global id. So we combine
- * socket + die id + core id
+ * core_id is relative to socket and die, we need a global id.
+ * So we combine the result from cpu_map__get_die with the core id
*/
if (WARN_ONCE(cpu >> 16, "The core id number is too big.\n"))
return cpu_map__empty_aggr_cpu_id();

- id.id = (id.id << 16) | (cpu & 0xffff);
+ id.id = (cpu & 0xffff);
return id;
}

@@ -623,14 +620,16 @@ bool cpu_map__compare_aggr_cpu_id(struct aggr_cpu_id a, struct aggr_cpu_id b)
{
return a.id == b.id &&
a.node == b.node &&
- a.socket == b.socket;
+ a.socket == b.socket &&
+ a.die == b.die;
}

bool cpu_map__aggr_cpu_id_is_empty(struct aggr_cpu_id a)
{
return a.id == -1 &&
a.node == -1 &&
- a.socket == -1;
+ a.socket == -1 &&
+ a.die == -1;
}

struct aggr_cpu_id cpu_map__empty_aggr_cpu_id(void)
@@ -638,7 +637,8 @@ struct aggr_cpu_id cpu_map__empty_aggr_cpu_id(void)
struct aggr_cpu_id ret = {
.id = -1,
.node = -1,
- .socket = -1
+ .socket = -1,
+ .die = -1
};
return ret;
}
diff --git a/tools/perf/util/cpumap.h b/tools/perf/util/cpumap.h
index 0123ecc90694..51bbe1eca3f4 100644
--- a/tools/perf/util/cpumap.h
+++ b/tools/perf/util/cpumap.h
@@ -11,6 +11,7 @@ struct aggr_cpu_id {
int id;
int node;
int socket;
+ int die;
};

struct cpu_aggr_map {
@@ -49,11 +50,6 @@ static inline int cpu_map__socket(struct perf_cpu_map *sock, int s)
return sock->map[s];
}

-static inline int cpu_map__id_to_die(int id)
-{
- return (id >> 16) & 0xff;
-}
-
static inline int cpu_map__id_to_cpu(int id)
{
return id & 0xffff;
diff --git a/tools/perf/util/stat-display.c b/tools/perf/util/stat-display.c
index 625a0c44a11c..bbd6c95104c7 100644
--- a/tools/perf/util/stat-display.c
+++ b/tools/perf/util/stat-display.c
@@ -74,7 +74,7 @@ static void aggr_printout(struct perf_stat_config *config,
case AGGR_CORE:
fprintf(config->output, "S%d-D%d-C%*d%s%*d%s",
id.socket,
- cpu_map__id_to_die(id.id),
+ id.die,
config->csv_output ? 0 : -8,
cpu_map__id_to_cpu(id.id),
config->csv_sep,
@@ -86,7 +86,7 @@ static void aggr_printout(struct perf_stat_config *config,
fprintf(config->output, "S%d-D%*d%s%*d%s",
id.socket,
config->csv_output ? 0 : -8,
- cpu_map__id_to_die(id.id << 16),
+ id.die,
config->csv_sep,
config->csv_output ? 0 : 4,
nr,
@@ -114,7 +114,7 @@ static void aggr_printout(struct perf_stat_config *config,
if (evsel->percore && !config->percore_show_thread) {
fprintf(config->output, "S%d-D%d-C%*d%s",
id.socket,
- cpu_map__id_to_die(id.id),
+ id.die,
config->csv_output ? 0 : -3,
cpu_map__id_to_cpu(id.id), config->csv_sep);
} else if (id.id > -1) {
--
2.28.0
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