[igt-dev] [PATCH i-g-t] tests/kms_flip_scaled_crc: add flip to downscaled subtests

Juha-Pekka Heikkila juhapekka.heikkila at gmail.com
Wed Sep 2 09:12:25 UTC 2020


attempt to cause cdclk changes and stress scalers with flipping
to different size fb with different modifiers. Verify results
with crc.

Signed-off-by: Juha-Pekka Heikkila <juhapekka.heikkila at gmail.com>
---
 tests/Makefile.sources      |   1 +
 tests/kms_flip_scaled_crc.c | 255 ++++++++++++++++++++++++++++++++++++
 tests/meson.build           |   1 +
 3 files changed, 257 insertions(+)
 create mode 100644 tests/kms_flip_scaled_crc.c

diff --git a/tests/Makefile.sources b/tests/Makefile.sources
index 269b506d..fe9fb7ed 100644
--- a/tests/Makefile.sources
+++ b/tests/Makefile.sources
@@ -53,6 +53,7 @@ TESTS_progs = \
 	kms_fence_pin_leak \
 	kms_flip \
 	kms_flip_event_leak \
+	kms_flip_scaled_crc \
 	kms_flip_tiling \
 	kms_force_connector_basic \
 	kms_frontbuffer_tracking \
diff --git a/tests/kms_flip_scaled_crc.c b/tests/kms_flip_scaled_crc.c
new file mode 100644
index 00000000..9daa2f92
--- /dev/null
+++ b/tests/kms_flip_scaled_crc.c
@@ -0,0 +1,255 @@
+/*
+ * Copyright © 2020 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"
+
+IGT_TEST_DESCRIPTION("Test flipping between scaled/nonscaled framebuffers");
+
+typedef struct {
+	int drm_fd;
+	igt_display_t display;
+	igt_output_t *output;
+	enum pipe pipe;
+	uint32_t gen;
+	struct igt_fb small_fb;
+	struct igt_fb big_fb;
+	igt_pipe_crc_t *pipe_crc;
+} data_t;
+
+const struct {
+	const char * const name;
+	const char * const describe;
+	const uint64_t firstmodifier;
+	const uint32_t firstformat;
+	const uint64_t secondmodifier;
+	const uint32_t secondformat;
+} flip_scenario_test[] = {
+	{
+		"flip-32bpp-ytile-to-64bpp-ytile",
+		"Try to flip from 32bpp non scaled fb to 64bpp downscaled fb in attempt to stress cdclk reprogramming.",
+		LOCAL_I915_FORMAT_MOD_Y_TILED, DRM_FORMAT_XRGB8888,
+		LOCAL_I915_FORMAT_MOD_Y_TILED, DRM_FORMAT_XRGB16161616F
+	},
+	{
+		"flip-64bpp-ytile-to-32bpp-ytile",
+		"Try to flip from 64bpp non scaled fb to 32bpp downscaled fb.",
+		LOCAL_I915_FORMAT_MOD_Y_TILED, DRM_FORMAT_XRGB16161616F,
+		LOCAL_I915_FORMAT_MOD_Y_TILED, DRM_FORMAT_XRGB8888
+	},
+	{
+		"flip-64bpp-ytile-to-16bpp-ytile",
+		"Try to flip from 64bpp non scaled fb to 16bpp downscaled fb.",
+		LOCAL_I915_FORMAT_MOD_Y_TILED, DRM_FORMAT_XRGB16161616F,
+		LOCAL_I915_FORMAT_MOD_Y_TILED, DRM_FORMAT_RGB565
+	},
+	{
+		"flip-32bpp-ytileccs-to-64bpp-ytile",
+		"Try to flip from 32bpp ccs non scaled fb to 64bpp downscaled fb ytile.",
+		LOCAL_I915_FORMAT_MOD_Y_TILED_CCS, DRM_FORMAT_XRGB8888,
+		LOCAL_I915_FORMAT_MOD_Y_TILED, DRM_FORMAT_XRGB16161616F
+	},
+	{
+		"flip-32bpp-ytile-to-32bpp-ytilegen12rcccs",
+		"Try to flip from 32bpp non scaled fb to 32bpp downscaled gen12 rc ccs fb in attempt to stress cdclk reprogramming.",
+		LOCAL_I915_FORMAT_MOD_Y_TILED, DRM_FORMAT_XRGB8888,
+		LOCAL_I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS, DRM_FORMAT_XRGB8888
+	},
+	{
+		"flip-32bpp-ytile-to-32bpp-ytileccs",
+		"Try to flip from 32bpp non scaled ytiled fb to 32bpp downscaled ytiled ccs fb.",
+		LOCAL_I915_FORMAT_MOD_Y_TILED, DRM_FORMAT_XRGB8888,
+		LOCAL_I915_FORMAT_MOD_Y_TILED_CCS, DRM_FORMAT_XRGB8888
+	},
+	{
+		"flip-64bpp-ytile-to-32bpp-ytilercccs",
+		"Try to flip from 64bpp non scaled ytiled fb to 32bpp downscaled gen12 rc ccs fb.",
+		LOCAL_I915_FORMAT_MOD_Y_TILED, DRM_FORMAT_XRGB16161616F,
+		LOCAL_I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS, DRM_FORMAT_XRGB8888
+	},
+};
+
+static void setup_fb(data_t *data, struct igt_fb *newfb, uint32_t width,
+		     uint32_t height, uint64_t format, uint64_t modifier)
+{
+	struct drm_mode_fb_cmd2 f = {0};
+	cairo_t *cr;
+
+	igt_require(igt_display_has_format_mod(&data->display, format,
+					       modifier));
+
+	igt_create_bo_for_fb(data->drm_fd, width, height, format, modifier,
+			     newfb);
+	igt_assert(newfb->gem_handle > 0);
+
+	f.width = newfb->width;
+	f.height = newfb->height;
+	f.pixel_format = newfb->drm_format;
+	f.flags = LOCAL_DRM_MODE_FB_MODIFIERS;
+
+	for (int n = 0; n < newfb->num_planes; n++) {
+		f.handles[n] = newfb->gem_handle;
+		f.modifier[n] = newfb->modifier;
+		f.pitches[n] = newfb->strides[n];
+		f.offsets[n] = newfb->offsets[n];
+	}
+
+	cr = igt_get_cairo_ctx(data->drm_fd, newfb);
+	igt_paint_color(cr, 0, 0, newfb->width, newfb->height, 0, 1, 0);
+	igt_put_cairo_ctx(cr);
+
+	igt_assert(drmIoctl(data->drm_fd, LOCAL_DRM_IOCTL_MODE_ADDFB2, &f) == 0);
+	newfb->fb_id = f.fb_id;
+}
+
+static void free_fbs(data_t *data)
+{
+	igt_remove_fb(data->drm_fd, &data->small_fb);
+	igt_remove_fb(data->drm_fd, &data->big_fb);
+}
+
+static void test_flip_to_scaled(data_t *data, uint32_t index, enum pipe pipe,
+				igt_output_t *output)
+{
+	igt_plane_t *primary;
+	igt_crc_t small_crc, big_crc;
+
+	drmModeModeInfo *mode;
+	struct drm_event_vblank ev;
+	int ret;
+
+	igt_display_reset(&data->display);
+
+	igt_debug("running on output %s pipe %s\n", output->name,
+		  kmstest_pipe_name(pipe));
+	if (data->big_fb.fb_id == 0) {
+		mode = igt_output_get_mode(output);
+
+		// big fb will be 4k unless running on older than ICL
+		if (data->gen < 11) {
+			setup_fb(data, &data->small_fb,
+				 min(mode->hdisplay, 640),
+				 min(mode->vdisplay, 480),
+				 flip_scenario_test[index].firstformat,
+				 flip_scenario_test[index].firstmodifier);
+
+			setup_fb(data, &data->big_fb,
+				 1280, 960,
+				 flip_scenario_test[index].secondformat,
+				 flip_scenario_test[index].secondmodifier);
+			igt_debug("small fb %dx%d\n", data->small_fb.width,
+			          data->small_fb.height);
+			igt_debug("big fb %dx%d\n", data->big_fb.width,
+			          data->big_fb.height);
+		} else {
+			setup_fb(data, &data->small_fb,
+				 min(mode->hdisplay, 1920),
+				 min(mode->vdisplay, 1080),
+				 flip_scenario_test[index].firstformat,
+				 flip_scenario_test[index].firstmodifier);
+
+			setup_fb(data, &data->big_fb,
+				 3840, 2160,
+				 flip_scenario_test[index].secondformat,
+				 flip_scenario_test[index].secondmodifier);
+			igt_debug("small fb %dx%d\n", data->small_fb.width,
+			          data->small_fb.height);
+			igt_debug("big fb %dx%d\n", data->big_fb.width,
+			          data->big_fb.height);
+		}
+	}
+
+	igt_output_set_pipe(output, pipe);
+
+	primary = igt_output_get_plane_type(output, DRM_PLANE_TYPE_PRIMARY);
+	igt_display_commit_atomic(&data->display, DRM_MODE_ATOMIC_ALLOW_MODESET,
+				  NULL);
+	data->pipe_crc = igt_pipe_crc_new(data->drm_fd, pipe,
+					  INTEL_PIPE_CRC_SOURCE_AUTO);
+	igt_pipe_crc_start(data->pipe_crc);
+
+	igt_plane_set_position(primary, 0, 0);
+	igt_plane_set_fb(primary, &data->small_fb);
+
+	igt_display_commit_atomic(&data->display,
+				  DRM_MODE_ATOMIC_ALLOW_MODESET, NULL);
+	igt_pipe_crc_get_current(data->drm_fd, data->pipe_crc, &small_crc);
+
+	igt_plane_set_fb(primary, &data->big_fb);
+	igt_plane_set_size(primary, data->small_fb.width,
+			   data->small_fb.height);
+	ret = igt_display_try_commit_atomic(&data->display,
+					    DRM_MODE_ATOMIC_ALLOW_MODESET  |
+					    DRM_MODE_PAGE_FLIP_EVENT, NULL);
+
+	igt_require_f(ret != -ERANGE,
+		      "Platform scaling limits exceeded, skipping.");
+	igt_assert_eq(ret, 0);
+
+	igt_assert(read(data->drm_fd, &ev, sizeof(ev)) == sizeof(ev));
+
+	igt_pipe_crc_get_current(data->drm_fd, data->pipe_crc, &big_crc);
+	igt_assert(igt_check_crc_equal(&small_crc, &big_crc));
+
+	igt_pipe_crc_stop(data->pipe_crc);
+	igt_pipe_crc_free(data->pipe_crc);
+	data->pipe_crc = NULL;
+}
+
+igt_main
+{
+	enum pipe pipe;
+	data_t data = {};
+	igt_output_t *output;
+
+	igt_fixture {
+		data.drm_fd = drm_open_driver_master(DRIVER_INTEL);
+		data.gen = intel_gen(intel_get_drm_devid(data.drm_fd));
+		igt_require(data.gen >= 9);
+		igt_display_require(&data.display, data.drm_fd);
+		igt_require(data.display.is_atomic);
+		igt_require_pipe_crc(data.drm_fd);
+		kmstest_set_vt_graphics_mode();
+	}
+
+	for (int index = 0; index < ARRAY_SIZE(flip_scenario_test); index++) {
+		igt_describe(flip_scenario_test[index].describe);
+		igt_subtest(flip_scenario_test[index].name) {
+			for_each_pipe_with_single_output(&data.display, pipe,
+							 output)
+				test_flip_to_scaled(&data, index, pipe, output);
+
+			free_fbs(&data);
+		}
+	}
+	igt_fixture {
+		free_fbs(&data);
+		if (data.pipe_crc) {
+			igt_pipe_crc_stop(data.pipe_crc);
+			igt_pipe_crc_free(data.pipe_crc);
+			data.pipe_crc = NULL;
+		}
+		kmstest_set_vt_text_mode();
+		igt_display_fini(&data.display);
+	}
+}
diff --git a/tests/meson.build b/tests/meson.build
index 684de043..8e17a6ae 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -37,6 +37,7 @@ test_progs = [
 	'kms_fence_pin_leak',
 	'kms_flip',
 	'kms_flip_event_leak',
+	'kms_flip_scaled_crc',
 	'kms_flip_tiling',
 	'kms_force_connector_basic',
 	'kms_frontbuffer_tracking',
-- 
2.26.0



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