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1bb74f6cc3
linux/drivers/gpu/drm/tests/drm_framebuffer_test.c
Carlos Eduardo Gallo Filho 1bb74f6cc3
drm/tests: Add test for drm_framebuffer_cleanup() 
Add a single KUnit test case for the drm_framebuffer_cleanup function.

Signed-off-by: Carlos Eduardo Gallo Filho <gcarlos@disroot.org>
Acked-by: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240911001559.28284-7-gcarlos@disroot.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
2024-09-11 14:17:09 +02:00

550 lines
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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_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;
};
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_case
drm_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 void
check_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,
check_src_coords_test_to_desc);
/*
* Test if drm_framebuffer_cleanup() really pops out the framebuffer object
* from device's fb_list and decrement the number of framebuffers for that
* device, which is the only things it does.
*/
static void drm_test_framebuffer_cleanup(struct kunit *test)
{
struct drm_framebuffer_test_priv *priv = test->priv;
struct drm_device *dev = &priv->dev;
struct list_head *fb_list = &dev->mode_config.fb_list;
struct drm_format_info format = { };
struct drm_framebuffer fb1 = { .dev = dev, .format = &format };
struct drm_framebuffer fb2 = { .dev = dev, .format = &format };
/* This will result on [fb_list] -> fb2 -> fb1 */
drm_framebuffer_init(dev, &fb1, NULL);
drm_framebuffer_init(dev, &fb2, NULL);
drm_framebuffer_cleanup(&fb1);
/* Now fb2 is the only one element on fb_list */
KUNIT_ASSERT_TRUE(test, list_is_singular(&fb2.head));
KUNIT_ASSERT_EQ(test, dev->mode_config.num_fb, 1);
drm_framebuffer_cleanup(&fb2);
/* Now fb_list is empty */
KUNIT_ASSERT_TRUE(test, list_empty(fb_list));
KUNIT_ASSERT_EQ(test, dev->mode_config.num_fb, 0);
}
static struct kunit_case drm_framebuffer_tests[] = {
KUNIT_CASE_PARAM(drm_test_framebuffer_check_src_coords, check_src_coords_gen_params),
KUNIT_CASE(drm_test_framebuffer_cleanup),
KUNIT_CASE_PARAM(drm_test_framebuffer_create, drm_framebuffer_create_gen_params),
KUNIT_CASE(drm_test_framebuffer_modifiers_not_supported),
{ }
};
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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