[PATCH i-g-t 05/11] libdrmfdinfo: Allow specifying custom engine map
Tvrtko Ursulin
tvrtko.ursulin at linux.intel.com
Tue Feb 22 13:55:59 UTC 2022
From: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
Instead of hard coding the engine names, allow a map of names to indices
to either be passed in or it gets auto-detected (less efficient) while
parsing.
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
---
lib/igt_drm_clients.c | 7 +++---
lib/igt_drm_clients.h | 3 ++-
lib/igt_drm_fdinfo.c | 47 +++++++++++++++++++++++++++--------------
lib/igt_drm_fdinfo.h | 7 ++++--
tests/i915/drm_fdinfo.c | 16 +++++++++++---
tools/intel_gpu_top.c | 13 ++++++++++--
6 files changed, 66 insertions(+), 27 deletions(-)
diff --git a/lib/igt_drm_clients.c b/lib/igt_drm_clients.c
index 58d82648d821..591602f4c9f5 100644
--- a/lib/igt_drm_clients.c
+++ b/lib/igt_drm_clients.c
@@ -269,7 +269,8 @@ static bool is_drm_fd(int fd_dir, const char *name)
struct igt_drm_clients *
igt_drm_clients_scan(struct igt_drm_clients *clients,
bool (*filter_client)(const struct igt_drm_clients *,
- const struct drm_client_fdinfo *))
+ const struct drm_client_fdinfo *),
+ const char **name_map, unsigned int map_entries)
{
struct dirent *proc_dent;
struct igt_drm_client *c;
@@ -343,8 +344,8 @@ igt_drm_clients_scan(struct igt_drm_clients *clients,
memset(&info, 0, sizeof(info));
if (!__igt_parse_drm_fdinfo(dirfd(fdinfo_dir),
- fdinfo_dent->d_name,
- &info))
+ fdinfo_dent->d_name, &info,
+ name_map, map_entries))
continue;
if (filter_client && !filter_client(clients, &info))
diff --git a/lib/igt_drm_clients.h b/lib/igt_drm_clients.h
index f52080847291..91e9da4c0733 100644
--- a/lib/igt_drm_clients.h
+++ b/lib/igt_drm_clients.h
@@ -80,7 +80,8 @@ void igt_drm_clients_free(struct igt_drm_clients *clients);
struct igt_drm_clients *
igt_drm_clients_scan(struct igt_drm_clients *clients,
bool (*filter_client)(const struct igt_drm_clients *,
- const struct drm_client_fdinfo *));
+ const struct drm_client_fdinfo *),
+ const char **name_map, unsigned int map_entries);
struct igt_drm_client *
igt_drm_clients_find(struct igt_drm_clients *clients,
diff --git a/lib/igt_drm_fdinfo.c b/lib/igt_drm_fdinfo.c
index 28c1bdbda08e..96a8b768a4b1 100644
--- a/lib/igt_drm_fdinfo.c
+++ b/lib/igt_drm_fdinfo.c
@@ -22,6 +22,7 @@
*
*/
+#include <assert.h>
#include <ctype.h>
#include <sys/types.h>
#include <sys/stat.h>
@@ -52,14 +53,10 @@ static size_t read_fdinfo(char *buf, const size_t sz, int at, const char *name)
}
static int parse_engine(char *line, struct drm_client_fdinfo *info,
- size_t prefix_len, uint64_t *val)
+ size_t prefix_len,
+ const char **name_map, unsigned int map_entries,
+ uint64_t *val)
{
- static const char *e2class[] = {
- "render",
- "copy",
- "video",
- "video-enhance",
- };
ssize_t name_len;
char *name, *p;
int found = -1;
@@ -75,10 +72,26 @@ static int parse_engine(char *line, struct drm_client_fdinfo *info,
name = line + prefix_len;
- for (i = 0; i < ARRAY_SIZE(e2class); i++) {
- if (!strncmp(name, e2class[i], name_len)) {
- found = i;
- break;
+ if (name_map) {
+ for (i = 0; i < map_entries; i++) {
+ if (!strncmp(name, name_map[i], name_len)) {
+ found = i;
+ break;
+ }
+ }
+ } else {
+ for (i = 0; i < info->num_engines; i++) {
+ if (!strncmp(name, info->names[i], name_len)) {
+ found = i;
+ break;
+ }
+ }
+
+ if (found < 0) {
+ assert((info->num_engines + 1) < ARRAY_SIZE(info->names));
+ assert((strlen(name) + 1) < sizeof(info->names[0]));
+ strncpy(info->names[info->num_engines], name, name_len);
+ found = info->num_engines;
}
}
@@ -109,7 +122,8 @@ static const char *find_kv(const char *buf, const char *key, size_t keylen)
}
bool
-__igt_parse_drm_fdinfo(int dir, const char *fd, struct drm_client_fdinfo *info)
+__igt_parse_drm_fdinfo(int dir, const char *fd, struct drm_client_fdinfo *info,
+ const char **name_map, unsigned int map_entries)
{
char buf[4096], *_buf = buf;
char *l, *ctx = NULL;
@@ -139,7 +153,7 @@ __igt_parse_drm_fdinfo(int dir, const char *fd, struct drm_client_fdinfo *info)
} else if (!strncmp(l, "drm-engine-", 11) &&
strncmp(l, "drm-engine-capacity-", 20)) {
idx = parse_engine(l, info, strlen("drm-engine-"),
- &val);
+ name_map, map_entries, &val);
if (idx >= 0) {
if (!info->capacity[idx])
info->capacity[idx] = 1;
@@ -149,7 +163,7 @@ __igt_parse_drm_fdinfo(int dir, const char *fd, struct drm_client_fdinfo *info)
} else if (!strncmp(l, "drm-engine-capacity-", 20)) {
idx = parse_engine(l, info,
strlen("drm-engine-capacity-"),
- &val);
+ name_map, map_entries, &val);
if (idx >= 0)
info->capacity[idx] = val;
}
@@ -161,7 +175,8 @@ __igt_parse_drm_fdinfo(int dir, const char *fd, struct drm_client_fdinfo *info)
return true;
}
-bool igt_parse_drm_fdinfo(int drm_fd, struct drm_client_fdinfo *info)
+bool igt_parse_drm_fdinfo(int drm_fd, struct drm_client_fdinfo *info,
+ const char **name_map, unsigned int map_entries)
{
char fd[64];
int dir, ret;
@@ -175,7 +190,7 @@ bool igt_parse_drm_fdinfo(int drm_fd, struct drm_client_fdinfo *info)
if (dir < 0)
return false;
- res = __igt_parse_drm_fdinfo(dir, fd, info);
+ res = __igt_parse_drm_fdinfo(dir, fd, info, name_map, map_entries);
close(dir);
diff --git a/lib/igt_drm_fdinfo.h b/lib/igt_drm_fdinfo.h
index c527bab9a204..bea4a6304734 100644
--- a/lib/igt_drm_fdinfo.h
+++ b/lib/igt_drm_fdinfo.h
@@ -37,12 +37,15 @@ struct drm_client_fdinfo {
unsigned int num_engines;
unsigned int capacity[16];
+ char names[16][256];
uint64_t busy[16];
};
-bool igt_parse_drm_fdinfo(int drm_fd, struct drm_client_fdinfo *info);
+bool igt_parse_drm_fdinfo(int drm_fd, struct drm_client_fdinfo *info,
+ const char **name_map, unsigned int map_entries);
bool __igt_parse_drm_fdinfo(int dir, const char *fd,
- struct drm_client_fdinfo *info);
+ struct drm_client_fdinfo *info,
+ const char **name_map, unsigned int map_entries);
#endif /* IGT_DRM_FDINFO_H */
diff --git a/tests/i915/drm_fdinfo.c b/tests/i915/drm_fdinfo.c
index e3b1ebb0f454..d1053a53ae2c 100644
--- a/tests/i915/drm_fdinfo.c
+++ b/tests/i915/drm_fdinfo.c
@@ -34,6 +34,13 @@ IGT_TEST_DESCRIPTION("Test the i915 drm fdinfo data");
const double tolerance = 0.05f;
const unsigned long batch_duration_ns = 500e6;
+static const char *engine_map[] = {
+ "render",
+ "copy",
+ "video",
+ "video-enhance",
+};
+
#define __assert_within_epsilon(x, ref, tol_up, tol_down) \
igt_assert_f((double)(x) <= (1.0 + (tol_up)) * (double)(ref) && \
(double)(x) >= (1.0 - (tol_down)) * (double)(ref), \
@@ -50,7 +57,8 @@ static void basics(int i915, unsigned int num_classes)
struct drm_client_fdinfo info = { };
bool ret;
- ret = igt_parse_drm_fdinfo(i915, &info);
+ ret = igt_parse_drm_fdinfo(i915, &info, engine_map,
+ ARRAY_SIZE(engine_map));
igt_assert(ret);
igt_assert(!strcmp(info.driver, "i915"));
@@ -181,7 +189,8 @@ static uint64_t read_busy(int i915, unsigned int class)
{
struct drm_client_fdinfo info = { };
- igt_assert(igt_parse_drm_fdinfo(i915, &info));
+ igt_assert(igt_parse_drm_fdinfo(i915, &info, engine_map,
+ ARRAY_SIZE(engine_map)));
return info.busy[class];
}
@@ -267,7 +276,8 @@ static void read_busy_all(int i915, uint64_t *val)
{
struct drm_client_fdinfo info = { };
- igt_assert(igt_parse_drm_fdinfo(i915, &info));
+ igt_assert(igt_parse_drm_fdinfo(i915, &info, engine_map,
+ ARRAY_SIZE(engine_map)));
memcpy(val, info.busy, sizeof(info.busy));
}
diff --git a/tools/intel_gpu_top.c b/tools/intel_gpu_top.c
index c4f990b2a7d0..99e8e1d8ffd4 100644
--- a/tools/intel_gpu_top.c
+++ b/tools/intel_gpu_top.c
@@ -2030,6 +2030,12 @@ int main(int argc, char **argv)
{
unsigned int period_us = DEFAULT_PERIOD_MS * 1000;
struct igt_drm_clients *clients = NULL;
+ static const char *engine_map[] = {
+ "render",
+ "copy",
+ "video",
+ "video-enhance",
+ };
int con_w = -1, con_h = -1;
char *output_path = NULL;
struct engines *engines;
@@ -2177,7 +2183,8 @@ int main(int argc, char **argv)
}
pmu_sample(engines);
- igt_drm_clients_scan(clients, client_match);
+ igt_drm_clients_scan(clients, client_match, engine_map,
+ ARRAY_SIZE(engine_map));
codename = igt_device_get_pretty_name(&card, false);
while (!stop_top) {
@@ -2206,7 +2213,9 @@ int main(int argc, char **argv)
disp_clients =
display_clients(igt_drm_clients_scan(clients,
- client_match));
+ client_match,
+ engine_map,
+ ARRAY_SIZE(engine_map)));
if (stop_top)
break;
--
2.32.0
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