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igt/gem_flink_race: Explicitly quiesce the GPU before counting objects

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By explicitly quiescing the GPU we force it to a known and ideally
identical state when counting objects. In particular, this should make
the batch-pool status the same and not cause us to detect a negative
leak.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2015-04-12 13:32:17 +01:00
parent 007ff02cbc
commit 2e526ae9cd
1 changed files with 4 additions and 1 deletions
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5
tests/gem_flink_race.c
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@ -56,12 +56,13 @@ static int get_object_count(void)
FILE *file;
int scanned, ret;
igt_drop_caches_set(DROP_RETIRE);
igt_drop_caches_set(DROP_RETIRE | DROP_ACTIVE);
file = igt_debugfs_fopen("i915_gem_objects", "r");
scanned = fscanf(file, "%i objects", &ret);
igt_assert_eq(scanned, 1);
igt_debug("Reports %d objects\n", ret);
return ret;
}
@ -165,6 +166,7 @@ static void test_flink_close(void)
* up the counts */
fake = drm_open_any();
gem_quiescent_gpu(fake);
obj_count = get_object_count();
num_threads = sysconf(_SC_NPROCESSORS_ONLN);
@ -190,6 +192,7 @@ static void test_flink_close(void)
close(fd);
gem_quiescent_gpu(fake);
obj_count = get_object_count() - obj_count;
igt_info("leaked %i objects\n", obj_count);