// SPDX-License-Identifier: GPL-2.0/* * Test cases for the drm_framebuffer functions * * Copyright (c) 2022 Maíra Canal <mairacanal@riseup.net> */ #include <kunit/device.h>#include <kunit/test.h> #include <drm/drm_device.h>#include <drm/drm_drv.h>#include <drm/drm_mode.h>#include <drm/drm_framebuffer.h>#include <drm/drm_fourcc.h>#include <drm/drm_kunit_helpers.h>#include <drm/drm_print.h> #include "../drm_crtc_internal.h" #define MIN_WIDTH 4#define MAX_WIDTH 4096#define MIN_HEIGHT 4#define MAX_HEIGHT 4096 #define DRM_MODE_FB_INVALID BIT(2) struct drm_framebuffer_test {	int buffer_created;	struct drm_mode_fb_cmd2 cmd;	const char *name;}; static const struct drm_framebuffer_test drm_framebuffer_create_cases[] = {{ .buffer_created = 1, .name = "ABGR8888 normal sizes",	.cmd = { .width = 600, .height = 600, .pixel_format = DRM_FORMAT_ABGR8888,		 .handles = { 1, 0, 0 }, .pitches = { 4 * 600, 0, 0 },	}},{ .buffer_created = 1, .name = "ABGR8888 max sizes",	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,		 .handles = { 1, 0, 0 }, .pitches = { 4 * MAX_WIDTH, 0, 0 },	}},{ .buffer_created = 1, .name = "ABGR8888 pitch greater than min required",	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,		 .handles = { 1, 0, 0 }, .pitches = { 4 * MAX_WIDTH + 1, 0, 0 },	}},{ .buffer_created = 0, .name = "ABGR8888 pitch less than min required",	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,		 .handles = { 1, 0, 0 }, .pitches = { 4 * MAX_WIDTH - 1, 0, 0 },	}},{ .buffer_created = 0, .name = "ABGR8888 Invalid width",	.cmd = { .width = MAX_WIDTH + 1, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,		 .handles = { 1, 0, 0 }, .pitches = { 4 * (MAX_WIDTH + 1), 0, 0 },	}},{ .buffer_created = 0, .name = "ABGR8888 Invalid buffer handle",	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,		 .handles = { 0, 0, 0 }, .pitches = { 4 * MAX_WIDTH, 0, 0 },	}},{ .buffer_created = 0, .name = "No pixel format",	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = 0,		 .handles = { 1, 0, 0 }, .pitches = { 4 * MAX_WIDTH, 0, 0 },	}},{ .buffer_created = 0, .name = "ABGR8888 Width 0",	.cmd = { .width = 0, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,		 .handles = { 1, 0, 0 }, .pitches = { 4 * MAX_WIDTH, 0, 0 },	}},{ .buffer_created = 0, .name = "ABGR8888 Height 0",	.cmd = { .width = MAX_WIDTH, .height = 0, .pixel_format = DRM_FORMAT_ABGR8888,		 .handles = { 1, 0, 0 }, .pitches = { 4 * MAX_WIDTH, 0, 0 },	}},{ .buffer_created = 0, .name = "ABGR8888 Out of bound height * pitch combination",	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,		 .handles = { 1, 0, 0 }, .offsets = { UINT_MAX - 1, 0, 0 },		 .pitches = { 4 * MAX_WIDTH, 0, 0 },	}},{ .buffer_created = 1, .name = "ABGR8888 Large buffer offset",	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,		 .handles = { 1, 0, 0 }, .offsets = { UINT_MAX / 2, 0, 0 },		 .pitches = { 4 * MAX_WIDTH, 0, 0 },	}}, /* * All entries in members that represents per-plane values (@modifier, @handles, * @pitches and @offsets) must be zero when unused. */{ .buffer_created = 0, .name = "ABGR8888 Buffer offset for inexistent plane",	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,		 .handles = { 1, 0, 0 }, .offsets = { UINT_MAX / 2, UINT_MAX / 2, 0 },		 .pitches = { 4 * MAX_WIDTH, 0, 0 }, .flags = DRM_MODE_FB_MODIFIERS,	}}, { .buffer_created = 0, .name = "ABGR8888 Invalid flag",	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,		 .handles = { 1, 0, 0 }, .offsets = { UINT_MAX / 2, 0, 0 },		 .pitches = { 4 * MAX_WIDTH, 0, 0 }, .flags = DRM_MODE_FB_INVALID,	}},{ .buffer_created = 1, .name = "ABGR8888 Set DRM_MODE_FB_MODIFIERS without modifiers",	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,		 .handles = { 1, 0, 0 }, .offsets = { UINT_MAX / 2, 0, 0 },		 .pitches = { 4 * MAX_WIDTH, 0, 0 }, .flags = DRM_MODE_FB_MODIFIERS,	}},{ .buffer_created = 1, .name = "ABGR8888 Valid buffer modifier",	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,		 .handles = { 1, 0, 0 }, .offsets = { UINT_MAX / 2, 0, 0 },		 .pitches = { 4 * MAX_WIDTH, 0, 0 }, .flags = DRM_MODE_FB_MODIFIERS,		 .modifier = { AFBC_FORMAT_MOD_YTR, 0, 0 },	}},{ .buffer_created = 0,	.name = "ABGR8888 Invalid buffer modifier(DRM_FORMAT_MOD_SAMSUNG_64_32_TILE)",	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,		 .handles = { 1, 0, 0 }, .offsets = { UINT_MAX / 2, 0, 0 },		 .pitches = { 4 * MAX_WIDTH, 0, 0 }, .flags = DRM_MODE_FB_MODIFIERS,		 .modifier = { DRM_FORMAT_MOD_SAMSUNG_64_32_TILE, 0, 0 },	}},{ .buffer_created = 1, .name = "ABGR8888 Extra pitches without DRM_MODE_FB_MODIFIERS",	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,		 .handles = { 1, 0, 0 }, .offsets = { UINT_MAX / 2, 0, 0 },		 .pitches = { 4 * MAX_WIDTH, 4 * MAX_WIDTH, 0 },	}},{ .buffer_created = 0, .name = "ABGR8888 Extra pitches with DRM_MODE_FB_MODIFIERS",	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,		 .handles = { 1, 0, 0 }, .flags = DRM_MODE_FB_MODIFIERS,		 .pitches = { 4 * MAX_WIDTH, 4 * MAX_WIDTH, 0 },	}},{ .buffer_created = 1, .name = "NV12 Normal sizes",	.cmd = { .width = 600, .height = 600, .pixel_format = DRM_FORMAT_NV12,		 .handles = { 1, 1, 0 }, .pitches = { 600, 600, 0 },	}},{ .buffer_created = 1, .name = "NV12 Max sizes",	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_NV12,		 .handles = { 1, 1, 0 }, .pitches = { MAX_WIDTH, MAX_WIDTH, 0 },	}},{ .buffer_created = 0, .name = "NV12 Invalid pitch",	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_NV12,		 .handles = { 1, 1, 0 }, .pitches = { MAX_WIDTH, MAX_WIDTH - 1, 0 },	}},{ .buffer_created = 0, .name = "NV12 Invalid modifier/missing DRM_MODE_FB_MODIFIERS flag",	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_NV12,		 .handles = { 1, 1, 0 }, .modifier = { DRM_FORMAT_MOD_SAMSUNG_64_32_TILE, 0, 0 },		 .pitches = { MAX_WIDTH, MAX_WIDTH, 0 },	}},{ .buffer_created = 0, .name = "NV12 different  modifier per-plane",	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_NV12,		 .handles = { 1, 1, 0 }, .flags = DRM_MODE_FB_MODIFIERS,		 .modifier = { DRM_FORMAT_MOD_SAMSUNG_64_32_TILE, 0, 0 },		 .pitches = { MAX_WIDTH, MAX_WIDTH, 0 },	}},{ .buffer_created = 1, .name = "NV12 with DRM_FORMAT_MOD_SAMSUNG_64_32_TILE",	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_NV12,		 .handles = { 1, 1, 0 }, .flags = DRM_MODE_FB_MODIFIERS,		 .modifier = { DRM_FORMAT_MOD_SAMSUNG_64_32_TILE,			 DRM_FORMAT_MOD_SAMSUNG_64_32_TILE, 0 },		 .pitches = { MAX_WIDTH, MAX_WIDTH, 0 },	}},{ .buffer_created = 0, .name = "NV12 Valid modifiers without DRM_MODE_FB_MODIFIERS",	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_NV12,		 .handles = { 1, 1, 0 }, .modifier = { DRM_FORMAT_MOD_SAMSUNG_64_32_TILE,						       DRM_FORMAT_MOD_SAMSUNG_64_32_TILE, 0 },		 .pitches = { MAX_WIDTH, MAX_WIDTH, 0 },	}},{ .buffer_created = 0, .name = "NV12 Modifier for inexistent plane",	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_NV12,		 .handles = { 1, 1, 0 }, .flags = DRM_MODE_FB_MODIFIERS,		 .modifier = { DRM_FORMAT_MOD_SAMSUNG_64_32_TILE, DRM_FORMAT_MOD_SAMSUNG_64_32_TILE,			       DRM_FORMAT_MOD_SAMSUNG_64_32_TILE },		 .pitches = { MAX_WIDTH, MAX_WIDTH, 0 },	}},{ .buffer_created = 0, .name = "NV12 Handle for inexistent plane",	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_NV12,		 .handles = { 1, 1, 1 }, .flags = DRM_MODE_FB_MODIFIERS,		 .pitches = { MAX_WIDTH, MAX_WIDTH, 0 },	}},{ .buffer_created = 1, .name = "NV12 Handle for inexistent plane without DRM_MODE_FB_MODIFIERS",	.cmd = { .width = 600, .height = 600, .pixel_format = DRM_FORMAT_NV12,		 .handles = { 1, 1, 1 }, .pitches = { 600, 600, 600 },	}},{ .buffer_created = 1, .name = "YVU420 DRM_MODE_FB_MODIFIERS set without modifier",	.cmd = { .width = 600, .height = 600, .pixel_format = DRM_FORMAT_YVU420,		 .handles = { 1, 1, 1 }, .flags = DRM_MODE_FB_MODIFIERS,		 .pitches = { 600, 300, 300 },	}},{ .buffer_created = 1, .name = "YVU420 Normal sizes",	.cmd = { .width = 600, .height = 600, .pixel_format = DRM_FORMAT_YVU420,		 .handles = { 1, 1, 1 }, .pitches = { 600, 300, 300 },	}},{ .buffer_created = 1, .name = "YVU420 Max sizes",	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_YVU420,		 .handles = { 1, 1, 1 }, .pitches = { MAX_WIDTH, DIV_ROUND_UP(MAX_WIDTH, 2),						      DIV_ROUND_UP(MAX_WIDTH, 2) },	}},{ .buffer_created = 0, .name = "YVU420 Invalid pitch",	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_YVU420,		 .handles = { 1, 1, 1 }, .pitches = { MAX_WIDTH, DIV_ROUND_UP(MAX_WIDTH, 2) - 1,						      DIV_ROUND_UP(MAX_WIDTH, 2) },	}},{ .buffer_created = 1, .name = "YVU420 Different pitches",	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_YVU420,		 .handles = { 1, 1, 1 }, .pitches = { MAX_WIDTH, DIV_ROUND_UP(MAX_WIDTH, 2) + 1,						      DIV_ROUND_UP(MAX_WIDTH, 2) + 7 },	}},{ .buffer_created = 1, .name = "YVU420 Different buffer offsets/pitches",	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_YVU420,		 .handles = { 1, 1, 1 }, .offsets = { MAX_WIDTH, MAX_WIDTH  +			 MAX_WIDTH * MAX_HEIGHT, MAX_WIDTH  + 2 * MAX_WIDTH * MAX_HEIGHT },		 .pitches = { MAX_WIDTH, DIV_ROUND_UP(MAX_WIDTH, 2) + 1,			 DIV_ROUND_UP(MAX_WIDTH, 2) + 7 },	}},{ .buffer_created = 0,	.name = "YVU420 Modifier set just for plane 0, without DRM_MODE_FB_MODIFIERS",	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_YVU420,		 .handles = { 1, 1, 1 }, .modifier = { AFBC_FORMAT_MOD_SPARSE, 0, 0 },		 .pitches = { MAX_WIDTH, DIV_ROUND_UP(MAX_WIDTH, 2), DIV_ROUND_UP(MAX_WIDTH, 2) },	}},{ .buffer_created = 0,	.name = "YVU420 Modifier set just for planes 0, 1, without DRM_MODE_FB_MODIFIERS",	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_YVU420,		 .handles = { 1, 1, 1 },		 .modifier = { AFBC_FORMAT_MOD_SPARSE, AFBC_FORMAT_MOD_SPARSE, 0 },		 .pitches = { MAX_WIDTH, DIV_ROUND_UP(MAX_WIDTH, 2), DIV_ROUND_UP(MAX_WIDTH, 2) },	}},{ .buffer_created = 0,	.name = "YVU420 Modifier set just for plane 0, 1, with DRM_MODE_FB_MODIFIERS",	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_YVU420,		 .handles = { 1, 1, 1 }, .flags = DRM_MODE_FB_MODIFIERS,		 .modifier = { AFBC_FORMAT_MOD_SPARSE, AFBC_FORMAT_MOD_SPARSE, 0 },		 .pitches = { MAX_WIDTH, DIV_ROUND_UP(MAX_WIDTH, 2), DIV_ROUND_UP(MAX_WIDTH, 2) },	}},{ .buffer_created = 1, .name = "YVU420 Valid modifier",	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_YVU420,		 .handles = { 1, 1, 1 }, .flags = DRM_MODE_FB_MODIFIERS,		 .modifier = { AFBC_FORMAT_MOD_SPARSE, AFBC_FORMAT_MOD_SPARSE,			 AFBC_FORMAT_MOD_SPARSE },		 .pitches = { MAX_WIDTH, DIV_ROUND_UP(MAX_WIDTH, 2), DIV_ROUND_UP(MAX_WIDTH, 2) },	}},{ .buffer_created = 0, .name = "YVU420 Different modifiers per plane",	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_YVU420,		 .handles = { 1, 1, 1 }, .flags = DRM_MODE_FB_MODIFIERS,		 .modifier = { AFBC_FORMAT_MOD_SPARSE, AFBC_FORMAT_MOD_SPARSE | AFBC_FORMAT_MOD_YTR,			       AFBC_FORMAT_MOD_SPARSE },		 .pitches = { MAX_WIDTH, DIV_ROUND_UP(MAX_WIDTH, 2), DIV_ROUND_UP(MAX_WIDTH, 2) },	}},{ .buffer_created = 0, .name = "YVU420 Modifier for inexistent plane",	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_YVU420,		 .handles = { 1, 1, 1 }, .flags = DRM_MODE_FB_MODIFIERS,		 .modifier = { AFBC_FORMAT_MOD_SPARSE, AFBC_FORMAT_MOD_SPARSE,			 AFBC_FORMAT_MOD_SPARSE, AFBC_FORMAT_MOD_SPARSE },		 .pitches = { MAX_WIDTH, DIV_ROUND_UP(MAX_WIDTH, 2), DIV_ROUND_UP(MAX_WIDTH, 2) },	}},{ .buffer_created = 0, .name = "YUV420_10BIT Invalid modifier(DRM_FORMAT_MOD_LINEAR)",	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_YUV420_10BIT,		 .handles = { 1, 0, 0 }, .flags = DRM_MODE_FB_MODIFIERS,		 .modifier = { DRM_FORMAT_MOD_LINEAR, 0, 0 },		 .pitches = { MAX_WIDTH, 0, 0 },	}},{ .buffer_created = 1, .name = "X0L2 Normal sizes",	.cmd = { .width = 600, .height = 600, .pixel_format = DRM_FORMAT_X0L2,		 .handles = { 1, 0, 0 }, .pitches = { 1200, 0, 0 }	}},{ .buffer_created = 1, .name = "X0L2 Max sizes",	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_X0L2,		 .handles = { 1, 0, 0 }, .pitches = { 2 * MAX_WIDTH, 0, 0 }	}},{ .buffer_created = 0, .name = "X0L2 Invalid pitch",	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_X0L2,		 .handles = { 1, 0, 0 }, .pitches = { 2 * MAX_WIDTH - 1, 0, 0 }	}},{ .buffer_created = 1, .name = "X0L2 Pitch greater than minimum required",	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_X0L2,		 .handles = { 1, 0, 0 }, .pitches = { 2 * MAX_WIDTH + 1, 0, 0 }	}},{ .buffer_created = 0, .name = "X0L2 Handle for inexistent plane",	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_X0L2,		 .handles = { 1, 1, 0 }, .flags = DRM_MODE_FB_MODIFIERS,		 .pitches = { 2 * MAX_WIDTH + 1, 0, 0 }	}},{ .buffer_created = 1,	.name = "X0L2 Offset for inexistent plane, without DRM_MODE_FB_MODIFIERS set",	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_X0L2,		 .handles = { 1, 0, 0 }, .offsets = { 0, 0, 3 },		 .pitches = { 2 * MAX_WIDTH + 1, 0, 0 }	}},{ .buffer_created = 0, .name = "X0L2 Modifier without DRM_MODE_FB_MODIFIERS set",	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_X0L2,		 .handles = { 1, 0, 0 }, .pitches = { 2 * MAX_WIDTH + 1, 0, 0 },		 .modifier = { AFBC_FORMAT_MOD_SPARSE, 0, 0 },	}},{ .buffer_created = 1, .name = "X0L2 Valid modifier",	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_X0L2,		 .handles = { 1, 0, 0 }, .pitches = { 2 * MAX_WIDTH + 1, 0, 0 },		 .modifier = { AFBC_FORMAT_MOD_SPARSE, 0, 0 }, .flags = DRM_MODE_FB_MODIFIERS,	}},{ .buffer_created = 0, .name = "X0L2 Modifier for inexistent plane",	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT,		 .pixel_format = DRM_FORMAT_X0L2, .handles = { 1, 0, 0 },		 .pitches = { 2 * MAX_WIDTH + 1, 0, 0 },		 .modifier = { AFBC_FORMAT_MOD_SPARSE, AFBC_FORMAT_MOD_SPARSE, 0 },		 .flags = DRM_MODE_FB_MODIFIERS,	}},}; /* * This struct is intended to provide a way to mocked functions communicate * with the outer test when it can't be achieved by using its return value. In * this way, the functions that receive the mocked drm_device, for example, can * grab a reference to this and actually return something to be used on some * expectation. */struct drm_framebuffer_test_priv {	struct drm_device dev;	bool buffer_created;	bool buffer_freed;}; static struct drm_framebuffer *fb_create_mock(struct drm_device *dev,					      struct drm_file *file_priv,					      const struct drm_mode_fb_cmd2 *mode_cmd){	struct drm_framebuffer_test_priv *priv = container_of(dev, typeof(*priv), dev); 	priv->buffer_created = true;	return ERR_PTR(-EINVAL);} static struct drm_mode_config_funcs mock_config_funcs = {	.fb_create = fb_create_mock,}; static int drm_framebuffer_test_init(struct kunit *test){	struct device *parent;	struct drm_framebuffer_test_priv *priv;	struct drm_device *dev; 	parent = drm_kunit_helper_alloc_device(test);	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, parent); 	priv = drm_kunit_helper_alloc_drm_device(test, parent, typeof(*priv),						 dev, 0);	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv);	dev = &priv->dev; 	dev->mode_config.min_width = MIN_WIDTH;	dev->mode_config.max_width = MAX_WIDTH;	dev->mode_config.min_height = MIN_HEIGHT;	dev->mode_config.max_height = MAX_HEIGHT;	dev->mode_config.funcs = &mock_config_funcs; 	test->priv = priv;	return 0;} static void drm_test_framebuffer_create(struct kunit *test){	const struct drm_framebuffer_test *params = test->param_value;	struct drm_framebuffer_test_priv *priv = test->priv;	struct drm_device *dev = &priv->dev; 	priv->buffer_created = false;	drm_internal_framebuffer_create(dev, &params->cmd, NULL);	KUNIT_EXPECT_EQ(test, params->buffer_created, priv->buffer_created);} static void drm_framebuffer_test_to_desc(const struct drm_framebuffer_test *t, char *desc){	strscpy(desc, t->name, KUNIT_PARAM_DESC_SIZE);} KUNIT_ARRAY_PARAM(drm_framebuffer_create, drm_framebuffer_create_cases,		  drm_framebuffer_test_to_desc); /* Tries to create a framebuffer with modifiers without drm_device supporting it */static void drm_test_framebuffer_modifiers_not_supported(struct kunit *test){	struct drm_framebuffer_test_priv *priv = test->priv;	struct drm_device *dev = &priv->dev;	struct drm_framebuffer *fb; 	/* A valid cmd with modifier */	struct drm_mode_fb_cmd2 cmd = {		.width = MAX_WIDTH, .height = MAX_HEIGHT,		.pixel_format = DRM_FORMAT_ABGR8888, .handles = { 1, 0, 0 },		.offsets = { UINT_MAX / 2, 0, 0 }, .pitches = { 4 * MAX_WIDTH, 0, 0 },		.flags = DRM_MODE_FB_MODIFIERS,	}; 	priv->buffer_created = false;	dev->mode_config.fb_modifiers_not_supported = 1; 	fb = drm_internal_framebuffer_create(dev, &cmd, NULL);	KUNIT_EXPECT_EQ(test, priv->buffer_created, false);	KUNIT_EXPECT_EQ(test, PTR_ERR(fb), -EINVAL);} /* Parameters for testing drm_framebuffer_check_src_coords function */struct drm_framebuffer_check_src_coords_case {	const char *name;	const int expect;	const unsigned int fb_size;	const uint32_t src_x;	const uint32_t src_y; 	/* Deltas to be applied on source */	const uint32_t dsrc_w;	const uint32_t dsrc_h;}; static const struct drm_framebuffer_check_src_coords_casedrm_framebuffer_check_src_coords_cases[] = {	{ .name = "Success: source fits into fb",	  .expect = 0,	},	{ .name = "Fail: overflowing fb with x-axis coordinate",	  .expect = -ENOSPC, .src_x = 1, .fb_size = UINT_MAX,	},	{ .name = "Fail: overflowing fb with y-axis coordinate",	  .expect = -ENOSPC, .src_y = 1, .fb_size = UINT_MAX,	},	{ .name = "Fail: overflowing fb with source width",	  .expect = -ENOSPC, .dsrc_w = 1, .fb_size = UINT_MAX - 1,	},	{ .name = "Fail: overflowing fb with source height",	  .expect = -ENOSPC, .dsrc_h = 1, .fb_size = UINT_MAX - 1,	},}; static void drm_test_framebuffer_check_src_coords(struct kunit *test){	const struct drm_framebuffer_check_src_coords_case *params = test->param_value;	const uint32_t src_x = params->src_x;	const uint32_t src_y = params->src_y;	const uint32_t src_w = (params->fb_size << 16) + params->dsrc_w;	const uint32_t src_h = (params->fb_size << 16) + params->dsrc_h;	const struct drm_framebuffer fb = {		.width  = params->fb_size,		.height = params->fb_size	};	int ret; 	ret = drm_framebuffer_check_src_coords(src_x, src_y, src_w, src_h, &fb);	KUNIT_EXPECT_EQ(test, ret, params->expect);} static voidcheck_src_coords_test_to_desc(const struct drm_framebuffer_check_src_coords_case *t,			      char *desc){	strscpy(desc, t->name, KUNIT_PARAM_DESC_SIZE);} KUNIT_ARRAY_PARAM(check_src_coords, drm_framebuffer_check_src_coords_cases,

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