tests/gem_(linear|tiled)_blits: Repeat whilst being interrupted

Since these two tests exercise a working set larger than aperture, they
require stalls which are prone to being interrupted - so interrupt them
and check that everything still works.

1 files changed, 42 insertions, 31 deletions

diff --git a/tests/gem_tiled_blits.c b/tests/gem_tiled_blits.c
index bb439760..34b96fdc 100644
--- a/tests/gem_tiled_blits.c
+++ b/tests/gem_tiled_blits.c
@@ -117,41 +117,16 @@ check_bo(drm_intel_bo *bo, uint32_t start_val)
 	drm_intel_bo_unreference(linear_bo);
 }
 
-int main(int argc, char **argv)
+static void run_test(int count)
 {
 	drm_intel_bo **bo;
 	uint32_t *bo_start_val;
 	uint32_t start = 0;
-	int i, fd, count;
-
-	fd = drm_open_any();
-
-	count = 0;
-	if (argc > 1)
-		count = atoi(argv[1]);
-	if (count == 0) {
-		count = 3 * gem_aperture_size(fd) / (1024*1024) / 2;
-		count += (count & 1) == 0;
-	} else if (count < 2) {
-		fprintf(stderr, "count must be >= 2\n");
-		return 1;
-	}
-
-	if (count > intel_get_total_ram_mb() * 9 / 10) {
-		count = intel_get_total_ram_mb() * 9 / 10;
-		printf("not enough RAM to run test, reducing buffer count\n");
-	}
-
-	printf("Using %d 1MiB buffers\n", count);
+	int i;
 
 	bo = malloc(sizeof(drm_intel_bo *)*count);
 	bo_start_val = malloc(sizeof(uint32_t)*count);
 
-	bufmgr = drm_intel_bufmgr_gem_init(fd, 4096);
-	drm_intel_bufmgr_gem_enable_reuse(bufmgr);
-	drm_intel_bufmgr_gem_set_vma_cache_size(bufmgr, 32);
-	batch = intel_batchbuffer_alloc(bufmgr, intel_get_drm_devid(fd));
-
 	for (i = 0; i < count; i++) {
 		bo[i] = create_bo(start);
 		bo_start_val[i] = start;
@@ -200,14 +175,50 @@ int main(int argc, char **argv)
 		intel_copy_bo(batch, bo[dst], bo[src], width, height);
 		bo_start_val[dst] = bo_start_val[src];
 	}
-	for (i = 0; i < count; i++)
-		check_bo(bo[i], bo_start_val[i]);
-
 	for (i = 0; i < count; i++) {
+		check_bo(bo[i], bo_start_val[i]);
 		drm_intel_bo_unreference(bo[i]);
-		bo[i] = NULL;
 	}
 
+	free(bo);
+}
+
+int main(int argc, char **argv)
+{
+	int fd, count;
+
+	fd = drm_open_any();
+
+	count = 0;
+	if (argc > 1)
+		count = atoi(argv[1]);
+	if (count == 0) {
+		count = 3 * gem_aperture_size(fd) / (1024*1024) / 2;
+		count += (count & 1) == 0;
+	} else if (count < 2) {
+		fprintf(stderr, "count must be >= 2\n");
+		return 1;
+	}
+
+	if (count > intel_get_total_ram_mb() * 9 / 10) {
+		count = intel_get_total_ram_mb() * 9 / 10;
+		printf("not enough RAM to run test, reducing buffer count\n");
+	}
+
+	printf("Using %d 1MiB buffers\n", count);
+
+	bufmgr = drm_intel_bufmgr_gem_init(fd, 4096);
+	drm_intel_bufmgr_gem_enable_reuse(bufmgr);
+	drm_intel_bufmgr_gem_set_vma_cache_size(bufmgr, 32);
+	batch = intel_batchbuffer_alloc(bufmgr, intel_get_drm_devid(fd));
+
+	run_test(count);
+
+	/* and again whilst being rudely interrupted */
+	drmtest_fork_signal_helper();
+	run_test(count);
+	drmtest_stop_signal_helper();
+
 	intel_batchbuffer_free(batch);
 	drm_intel_bufmgr_destroy(bufmgr);