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// 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 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 = 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, ¶ms->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_DESCRIPTION("Test cases for the drm_framebuffer functions");
MODULE_LICENSE("GPL");
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