tests/gem_media_vme: Simple test to exercise the VME block

Simple test which exercises the VME fixed function block.

v2: (Tvrtko Ursulin)
 * Small cleanups like copyright date, tabs, remove unused bits.

v3: (Tony Ye)
 * Added curbe data entry for dst surface.
 * Read the dst surface after the VME kernel being executed.

v4: (Tony Ye)
 * Added the media_vme.gxa kernel source code and compile instructions.

v5: (Tvrtko Ursulin)
 * Added hang detector.

v6: (Tvrtko Ursulin)
 * Replace gem_read with gem_sync. (Chris Wilson)

Signed-off-by: Tony Ye <tony.ye@intel.com>
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Tony Ye <tony.ye@intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

1 files changed, 117 insertions, 0 deletions

diff --git a/tests/i915/gem_media_vme.c b/tests/i915/gem_media_vme.c
new file mode 100644
index 00000000..8d9fd822
--- /dev/null
+++ b/tests/i915/gem_media_vme.c
@@ -0,0 +1,117 @@
+/*
+ * Copyright © 2018 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.
+ */
+#include "igt.h"
+#include <stdbool.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <sys/ioctl.h>
+#include <stdio.h>
+#include <string.h>
+#include <fcntl.h>
+#include <inttypes.h>
+#include <errno.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include "drm.h"
+#include "intel_bufmgr.h"
+
+IGT_TEST_DESCRIPTION("A very simple workload for the VME media block.");
+
+#define WIDTH	64
+#define STRIDE	(WIDTH)
+#define HEIGHT	64
+
+#define INPUT_SIZE	(WIDTH * HEIGHT * sizeof(char) * 1.5)
+#define OUTPUT_SIZE	(56*sizeof(int))
+
+static void
+scratch_buf_init(drm_intel_bufmgr *bufmgr,
+		 struct igt_buf *buf,
+		 unsigned int size)
+{
+	drm_intel_bo *bo;
+
+	bo = drm_intel_bo_alloc(bufmgr, "", size, 4096);
+	igt_assert(bo);
+
+	memset(buf, 0, sizeof(*buf));
+
+	buf->bo = bo;
+	buf->tiling = I915_TILING_NONE;
+	buf->size = size;
+}
+
+static void scratch_buf_init_src(drm_intel_bufmgr *bufmgr, struct igt_buf *buf)
+{
+	scratch_buf_init(bufmgr, buf, INPUT_SIZE);
+
+	/*
+	 * Ideally we would read src surface from file "SourceFrameI.yu12".
+	 * But even without it, we can still triger the rcs0 resetting
+	 * with this vme kernel.
+	 */
+
+	buf->stride = STRIDE;
+}
+
+static void scratch_buf_init_dst(drm_intel_bufmgr *bufmgr, struct igt_buf *buf)
+{
+	scratch_buf_init(bufmgr, buf, OUTPUT_SIZE);
+
+	buf->stride = 1;
+}
+
+igt_simple_main
+{
+	int drm_fd;
+	uint32_t devid;
+	drm_intel_bufmgr *bufmgr;
+	igt_vme_func_t media_vme;
+	struct intel_batchbuffer *batch;
+	struct igt_buf src, dst;
+
+	drm_fd = drm_open_driver(DRIVER_INTEL);
+	igt_require_gem(drm_fd);
+
+	devid = intel_get_drm_devid(drm_fd);
+
+	media_vme = igt_get_media_vme_func(devid);
+	igt_require_f(media_vme, "no media-vme function\n");
+
+	bufmgr = drm_intel_bufmgr_gem_init(drm_fd, 4096);
+	igt_assert(bufmgr);
+
+	batch = intel_batchbuffer_alloc(bufmgr, devid);
+	igt_assert(batch);
+
+	scratch_buf_init_src(bufmgr, &src);
+	scratch_buf_init_dst(bufmgr, &dst);
+
+	igt_fork_hang_detector(drm_fd);
+
+	media_vme(batch, &src, WIDTH, HEIGHT, &dst);
+
+	gem_sync(drm_fd, dst.bo->handle);
+
+	igt_stop_hang_detector();
+}