tests/kms: Move Intel specific kms tests to i915 directory

As KMS tests on IGT are officially supported on multiple SoCs
and there is an active development on it. So, KMS tests are
meant to be generic and if we need to test few things specific
to Intel, we can use igt_require_intel(). But if the whole test
is Intel specific, then the best place for the test would be
tests/i915.

This patch will
* Move all Intel specific kms tests to tests/i915 directory.
* Update the tests those are generic but still open the driver
  as 'drm_open_driver_master(DRIVER_INTEL);'.

V2:
* Few more tests
V3:
* Remove cleanups (will submit separate patch later)
* Move few more tests to i915 dir (Karthik)
V4:
* Move kms_big_joiner.c to i915 dir (Karthik)

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Mark Yacoub <markyacoub@chromium.org>
Cc: Petri Latvala <petri.latvala@intel.com>
Cc: Vidya Srinivas <vidya.srinivas@intel.com>
Cc: Karthik B S <karthik.b.s@intel.com>
Signed-off-by: Bhanuprakash Modem <bhanuprakash.modem@intel.com>
Reviewed-by: Mark Yacoub <markyacoub@chromium.org>
Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Reviewed-by: Karthik B S <karthik.b.s@intel.com>

1 files changed, 190 insertions, 0 deletions

diff --git a/tests/i915/kms_pwrite_crc.c b/tests/i915/kms_pwrite_crc.c
new file mode 100644
index 00000000..dc32a070
--- /dev/null
+++ b/tests/i915/kms_pwrite_crc.c
@@ -0,0 +1,190 @@
+/*
+ * Copyright © 2014 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 <errno.h>
+#include <limits.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <string.h>
+
+
+IGT_TEST_DESCRIPTION(
+   "Use the display CRC support to validate pwrite to an already uncached future scanout buffer.");
+
+typedef struct {
+	int drm_fd;
+	igt_display_t display;
+	struct igt_fb fb[2];
+	igt_output_t *output;
+	igt_plane_t *primary;
+	enum pipe pipe;
+	igt_crc_t ref_crc;
+	igt_pipe_crc_t *pipe_crc;
+	uint32_t devid;
+} data_t;
+
+static void test(data_t *data)
+{
+	igt_output_t *output = data->output;
+	struct igt_fb *fb = &data->fb[1];
+	drmModeModeInfo *mode;
+	uint32_t caching;
+	void *buf;
+	igt_crc_t crc;
+
+	mode = igt_output_get_mode(output);
+
+	/* create a non-white fb where we can pwrite later */
+	igt_create_pattern_fb(data->drm_fd, mode->hdisplay, mode->vdisplay,
+			      DRM_FORMAT_XRGB8888, DRM_FORMAT_MOD_NONE, fb);
+
+	/* flip to it to make it UC/WC and fully flushed */
+	drmModeSetPlane(data->drm_fd,
+			data->primary->drm_plane->plane_id,
+			output->config.crtc->crtc_id,
+			fb->fb_id, 0,
+			0, 0, fb->width, fb->height,
+			0, 0, fb->width << 16, fb->height << 16);
+
+	/* flip back the original white buffer */
+	drmModeSetPlane(data->drm_fd,
+			data->primary->drm_plane->plane_id,
+			output->config.crtc->crtc_id,
+			data->fb[0].fb_id, 0,
+			0, 0, fb->width, fb->height,
+			0, 0, fb->width << 16, fb->height << 16);
+
+	/* make sure caching mode has become UC/WT */
+	caching = gem_get_caching(data->drm_fd, fb->gem_handle);
+	igt_assert(caching == I915_CACHING_NONE || caching == I915_CACHING_DISPLAY);
+
+	/* use pwrite to make the other fb all white too */
+	buf = malloc(fb->size);
+	igt_assert(buf != NULL);
+	memset(buf, 0xff, fb->size);
+	gem_write(data->drm_fd, fb->gem_handle, 0, buf, fb->size);
+	free(buf);
+
+	/* and flip to it */
+	drmModeSetPlane(data->drm_fd,
+			data->primary->drm_plane->plane_id,
+			output->config.crtc->crtc_id,
+			fb->fb_id, 0,
+			0, 0, fb->width, fb->height,
+			0, 0, fb->width << 16, fb->height << 16);
+
+	/* check that the crc is as expected, which requires that caches got flushed */
+	igt_pipe_crc_collect_crc(data->pipe_crc, &crc);
+	igt_assert_crc_equal(&crc, &data->ref_crc);
+}
+
+static void prepare_crtc(data_t *data)
+{
+	igt_display_t *display = &data->display;
+	igt_output_t *output = data->output;
+	drmModeModeInfo *mode;
+
+	/* select the pipe we want to use */
+	igt_output_set_pipe(output, data->pipe);
+
+	mode = igt_output_get_mode(output);
+
+	/* create a white reference fb and flip to it */
+	igt_create_color_fb(data->drm_fd, mode->hdisplay, mode->vdisplay,
+			    DRM_FORMAT_XRGB8888, DRM_FORMAT_MOD_NONE,
+			    1.0, 1.0, 1.0, &data->fb[0]);
+
+	data->primary = igt_output_get_plane_type(output, DRM_PLANE_TYPE_PRIMARY);
+
+	igt_plane_set_fb(data->primary, &data->fb[0]);
+	igt_display_commit(display);
+
+	if (data->pipe_crc)
+		igt_pipe_crc_free(data->pipe_crc);
+
+	data->pipe_crc = igt_pipe_crc_new(data->drm_fd, data->pipe,
+					  INTEL_PIPE_CRC_SOURCE_AUTO);
+
+	/* get reference crc for the white fb */
+	igt_pipe_crc_collect_crc(data->pipe_crc, &data->ref_crc);
+}
+
+static void cleanup_crtc(data_t *data)
+{
+	igt_display_t *display = &data->display;
+	igt_output_t *output = data->output;
+
+	igt_pipe_crc_free(data->pipe_crc);
+	data->pipe_crc = NULL;
+
+	igt_plane_set_fb(data->primary, NULL);
+
+	igt_output_set_pipe(output, PIPE_ANY);
+	igt_display_commit(display);
+
+	igt_remove_fb(data->drm_fd, &data->fb[0]);
+	igt_remove_fb(data->drm_fd, &data->fb[1]);
+
+}
+
+static void run_test(data_t *data)
+{
+	igt_display_t *display = &data->display;
+	igt_output_t *output;
+	enum pipe pipe;
+
+	for_each_pipe_with_valid_output(display, pipe, output) {
+		data->output = output;
+		data->pipe = pipe;
+
+		prepare_crtc(data);
+		test(data);
+		cleanup_crtc(data);
+
+		/* once is enough */
+		return;
+	}
+
+	igt_skip("no valid crtc/connector combinations found\n");
+}
+
+static data_t data;
+
+igt_simple_main
+{
+	data.drm_fd = drm_open_driver_master(DRIVER_INTEL);
+
+	data.devid = intel_get_drm_devid(data.drm_fd);
+
+	kmstest_set_vt_graphics_mode();
+
+	igt_require_pipe_crc(data.drm_fd);
+
+	igt_display_require(&data.display, data.drm_fd);
+
+	run_test(&data);
+
+	igt_display_fini(&data.display);
+}