tests: Add a basic test for tiled render copies

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

tests/.gitignore

@@ -46,11 +46,14 @@ gem_pwrite
 gem_readwrite
 gem_reloc_vs_gpu
 gem_reg_read
+gem_render_linear_blits
+gem_render_tiled_blits
 gem_ringfill
 gem_ring_sync_loop
 gem_set_tiling_vs_blt
 gem_set_tiling_vs_gtt
 gem_set_tiling_vs_pwrite
+gem_seqno_wrap
 gem_storedw_batches_loop
 gem_storedw_loop_blt
 gem_storedw_loop_bsd

tests/Makefile.am

@@ -68,6 +68,7 @@ TESTS_progs = \
 	gen3_render_mixed_blits \
 	gen3_mixed_blits \
 	gem_render_linear_blits \
+	gem_render_tiled_blits \
 	gem_storedw_loop_render \
 	gem_storedw_loop_blt \
 	gem_storedw_loop_bsd \

tests/gem_render_tiled_blits.c

@@ -0,0 +1,157 @@
+/*
+ * 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 render_copyfunc_t render_copy;
+
+static void
+check_bo(drm_intel_bo *bo, uint32_t val)
+{
+	uint32_t *ptr;
+	int i;
+
+	do_or_die(drm_intel_gem_bo_map_gtt(bo));
+	ptr = bo->virtual;
+	for (i = 0; i < WIDTH*HEIGHT; i++) {
+		if (ptr[i] != val) {
+			fprintf(stderr, "Expected 0x%08x, found 0x%08x "
+				"at offset 0x%08x\n",
+				val, ptr[i], i * 4);
+			abort();
+		}
+		val++;
+	}
+	drm_intel_gem_bo_unmap_gtt(bo);
+}
+
+int main(int argc, char **argv)
+{
+	drm_intel_bufmgr *bufmgr;
+	struct intel_batchbuffer *batch;
+	uint32_t *start_val;
+	struct scratch_buf *buf;
+	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);
+
+	buf = malloc(sizeof(*buf)*count);
+	start_val = malloc(sizeof(*start_val)*count);
+
+	for (i = 0; i < count; i++) {
+		uint32_t tiling = I915_TILING_X + (random() & 1);
+		unsigned long pitch = STRIDE;
+		uint32_t *ptr;
+
+		buf[i].bo = drm_intel_bo_alloc_tiled(bufmgr, "",
+						     WIDTH, HEIGHT, 4,
+						     &tiling, &pitch, 0);
+		buf[i].stride = pitch;
+		buf[i].tiling = tiling;
+		buf[i].size = SIZE;
+
+		start_val[i] = start;
+
+		do_or_die(drm_intel_gem_bo_map_gtt(buf[i].bo));
+		ptr = buf[i].bo->virtual;
+		for (j = 0; j < WIDTH*HEIGHT; j++)
+			ptr[j] = start++;
+		drm_intel_gem_bo_unmap_gtt(buf[i].bo);
+	}
+
+	printf("Verifying initialisation...\n");
+	for (i = 0; i < count; i++)
+		check_bo(buf[i].bo, start_val[i]);
+
+	printf("Cyclic blits, forward...\n");
+	for (i = 0; i < count * 4; i++) {
+		int src = i % count;
+		int dst = (i + 1) % count;
+
+		render_copy(batch, buf+src, 0, 0, WIDTH, HEIGHT, buf+dst, 0, 0);
+		start_val[dst] = start_val[src];
+	}
+	for (i = 0; i < count; i++)
+		check_bo(buf[i].bo, start_val[i]);
+
+	printf("Cyclic blits, backward...\n");
+	for (i = 0; i < count * 4; i++) {
+		int src = (i + 1) % count;
+		int dst = i % count;
+
+		render_copy(batch, buf+src, 0, 0, WIDTH, HEIGHT, buf+dst, 0, 0);
+		start_val[dst] = start_val[src];
+	}
+	for (i = 0; i < count; i++)
+		check_bo(buf[i].bo, start_val[i]);
+
+	printf("Random blits...\n");
+	for (i = 0; i < count * 4; i++) {
+		int src = random() % count;
+		int dst = random() % count;
+
+		if (src == dst)
+			continue;
+
+		render_copy(batch, buf+src, 0, 0, WIDTH, HEIGHT, buf+dst, 0, 0);
+		start_val[dst] = start_val[src];
+	}
+	for (i = 0; i < count; i++)
+		check_bo(buf[i].bo, start_val[i]);
+
+	return 0;
+}