// SPDX-License-Identifier: GPL-2.0/* * Test cases for the drm_framebuffer functions * * Copyright (c) 2022 Maíra Canal <mairacanal@riseup.net> */ #include <kunit/test.h> #include <drm/drm_device.h>#include <drm/drm_mode.h>#include <drm/drm_fourcc.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 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 },	}},{ .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 Normal sizes",	.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 DRM_MODE_FB_MODIFIERS set without modifier",	.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 = 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,	}},}; static struct drm_framebuffer *fb_create_mock(struct drm_device *dev,					      struct drm_file *file_priv,					      const struct drm_mode_fb_cmd2 *mode_cmd){	int *buffer_created = dev->dev_private;	*buffer_created = 1;	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 drm_device *mock; 	mock = kunit_kzalloc(test, sizeof(*mock), GFP_KERNEL);	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, mock); 	mock->mode_config.min_width = MIN_WIDTH;	mock->mode_config.max_width = MAX_WIDTH;	mock->mode_config.min_height = MIN_HEIGHT;	mock->mode_config.max_height = MAX_HEIGHT;	mock->mode_config.funcs = &mock_config_funcs; 	test->priv = mock;	return 0;} static void drm_test_framebuffer_create(struct kunit *test){	const struct drm_framebuffer_test *params = test->param_value;	struct drm_device *mock = test->priv;	int buffer_created = 0; 	mock->dev_private = &buffer_created;	drm_internal_framebuffer_create(mock, &params->cmd, NULL);	KUNIT_EXPECT_EQ(test, params->buffer_created, buffer_created);} static void drm_framebuffer_test_to_desc(const struct drm_framebuffer_test *t, char *desc){	strcpy(desc, t->name);} KUNIT_ARRAY_PARAM(drm_framebuffer_create, drm_framebuffer_create_cases,		  drm_framebuffer_test_to_desc); static struct kunit_case drm_framebuffer_tests[] = {	KUNIT_CASE_PARAM(drm_test_framebuffer_create, drm_framebuffer_create_gen_params),	{ }}; static struct kunit_suite drm_framebuffer_test_suite = {	.name = "drm_framebuffer",	.init = drm_framebuffer_test_init,	.test_cases = drm_framebuffer_tests,}; kunit_test_suite(drm_framebuffer_test_suite); MODULE_LICENSE("GPL");