tests: Add basic test for render blits

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

tests/Makefile.am

@@ -67,6 +67,7 @@ TESTS_progs = \
 	gen3_render_tiledy_blits \
 	gen3_render_mixed_blits \
 	gen3_mixed_blits \
+	gem_render_linear_blits \
 	gem_storedw_loop_render \
 	gem_storedw_loop_blt \
 	gem_storedw_loop_bsd \

tests/gem_render_linear_blits.c

@@ -0,0 +1,171 @@
+/*
+ * Copyright © 2011 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Chris Wilson <chris@chris-wilson.co.uk>
+ *
+ */
+
+/** @file gem_linear_render_blits.c
+ *
+ * This is a test of doing many blits, with a working set
+ * larger than the aperture size.
+ *
+ * The goal is to simply ensure the basics work.
+ */
+
+#include "rendercopy.h"
+
+#define WIDTH 512
+#define STRIDE (WIDTH*4)
+#define HEIGHT 512
+#define SIZE (HEIGHT*STRIDE)
+
+static uint32_t linear[WIDTH*HEIGHT];
+static render_copyfunc_t render_copy;
+
+static void
+check_bo(int fd, uint32_t handle, uint32_t val)
+{
+	int i;
+
+	gem_read(fd, handle, 0, linear, sizeof(linear));
+	for (i = 0; i < WIDTH*HEIGHT; i++) {
+		if (linear[i] != val) {
+			fprintf(stderr, "Expected 0x%08x, found 0x%08x "
+				"at offset 0x%08x\n",
+				val, linear[i], i * 4);
+			abort();
+		}
+		val++;
+	}
+}
+
+int main(int argc, char **argv)
+{
+	drm_intel_bufmgr *bufmgr;
+	struct intel_batchbuffer *batch;
+	uint32_t *start_val;
+	drm_intel_bo **bo;
+	uint32_t start = 0;
+	int i, j, fd, count;
+
+	fd = drm_open_any();
+
+	render_copy = get_render_copyfunc(intel_get_drm_devid(fd));
+	if (render_copy == NULL) {
+		printf("no render-copy function, doing nothing\n");
+		return 77;
+	}
+
+	bufmgr = drm_intel_bufmgr_gem_init(fd, 4096);
+	batch = intel_batchbuffer_alloc(bufmgr, intel_get_drm_devid(fd));
+
+	count = 0;
+	if (argc > 1)
+		count = atoi(argv[1]);
+	if (count == 0)
+		count = 3 * gem_aperture_size(fd) / SIZE / 2;
+	printf("Using %d 1MiB buffers\n", count);
+
+	bo = malloc(sizeof(*bo)*count);
+	start_val = malloc(sizeof(*start_val)*count);
+
+	for (i = 0; i < count; i++) {
+		bo[i] = drm_intel_bo_alloc(bufmgr, "", SIZE, 4096);
+		start_val[i] = start;
+		for (j = 0; j < WIDTH*HEIGHT; j++)
+			linear[j] = start++;
+		gem_write(fd, bo[i]->handle, 0, linear, sizeof(linear));
+	}
+
+	printf("Verifying initialisation...\n");
+	for (i = 0; i < count; i++)
+		check_bo(fd, bo[i]->handle, start_val[i]);
+
+	printf("Cyclic blits, forward...\n");
+	for (i = 0; i < count * 4; i++) {
+		struct scratch_buf src, dst;
+
+		src.bo = bo[i % count];
+		src.stride = STRIDE;
+		src.tiling = I915_TILING_NONE;
+		src.size = SIZE;
+
+		dst.bo = bo[(i + 1) % count];
+		dst.stride = STRIDE;
+		dst.tiling = I915_TILING_NONE;
+		dst.size = SIZE;
+
+		render_copy(batch, &src, 0, 0, WIDTH, HEIGHT, &dst, 0, 0);
+		start_val[(i + 1) % count] = start_val[i % count];
+	}
+	for (i = 0; i < count; i++)
+		check_bo(fd, bo[i]->handle, start_val[i]);
+
+	printf("Cyclic blits, backward...\n");
+	for (i = 0; i < count * 4; i++) {
+		struct scratch_buf src, dst;
+
+		src.bo = bo[(i + 1) % count];
+		src.stride = STRIDE;
+		src.tiling = I915_TILING_NONE;
+		src.size = SIZE;
+
+		dst.bo = bo[i % count];
+		dst.stride = STRIDE;
+		dst.tiling = I915_TILING_NONE;
+		dst.size = SIZE;
+
+		render_copy(batch, &src, 0, 0, WIDTH, HEIGHT, &dst, 0, 0);
+		start_val[i % count] = start_val[(i + 1) % count];
+	}
+	for (i = 0; i < count; i++)
+		check_bo(fd, bo[i]->handle, start_val[i]);
+
+	printf("Random blits...\n");
+	for (i = 0; i < count * 4; i++) {
+		struct scratch_buf src, dst;
+		int s = random() % count;
+		int d = random() % count;
+
+		if (s == d)
+			continue;
+
+		src.bo = bo[s];
+		src.stride = STRIDE;
+		src.tiling = I915_TILING_NONE;
+		src.size = SIZE;
+
+		dst.bo = bo[d];
+		dst.stride = STRIDE;
+		dst.tiling = I915_TILING_NONE;
+		dst.size = SIZE;
+
+		render_copy(batch, &src, 0, 0, WIDTH, HEIGHT, &dst, 0, 0);
+		start_val[d] = start_val[s];
+	}
+	for (i = 0; i < count; i++)
+		check_bo(fd, bo[i]->handle, start_val[i]);
+
+	return 0;
+}