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drm/vram-helper: Integrate drm_gem_vram_init() into drm_gem_vram_create()

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The drm_gem_vram_create() function is the only caller of the internal
helper drm_gem_vram_init(). Streamline the code by putting all code into
the create function.

v2:
	* rebased onto latest drm-tip
	* fixed typo in commit message (Sam)

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200922145700.25413-2-tzimmermann@suse.de
This commit is contained in:
Thomas Zimmermann 2020-09-22 16:56:58 +02:00
parent d693def4fd
commit 7faa92dfdf
1 changed files with 29 additions and 48 deletions
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77
drivers/gpu/drm/drm_gem_vram_helper.c
View File

@ -167,52 +167,6 @@ static void drm_gem_vram_placement(struct drm_gem_vram_object *gbo,
}
}
/*
* Note that on error, drm_gem_vram_init will free the buffer object.
*/
static int drm_gem_vram_init(struct drm_device *dev,
struct drm_gem_vram_object *gbo,
size_t size, unsigned long pg_align)
{
struct drm_vram_mm *vmm = dev->vram_mm;
struct ttm_bo_device *bdev;
int ret;
size_t acc_size;
if (WARN_ONCE(!vmm, "VRAM MM not initialized")) {
kfree(gbo);
return -EINVAL;
}
bdev = &vmm->bdev;
gbo->bo.base.funcs = &drm_gem_vram_object_funcs;
ret = drm_gem_object_init(dev, &gbo->bo.base, size);
if (ret) {
kfree(gbo);
return ret;
}
acc_size = ttm_bo_dma_acc_size(bdev, size, sizeof(*gbo));
gbo->bo.bdev = bdev;
drm_gem_vram_placement(gbo, DRM_GEM_VRAM_PL_FLAG_VRAM |
DRM_GEM_VRAM_PL_FLAG_SYSTEM);
ret = ttm_bo_init(bdev, &gbo->bo, size, ttm_bo_type_device,
&gbo->placement, pg_align, false, acc_size,
NULL, NULL, ttm_buffer_object_destroy);
if (ret)
/*
* A failing ttm_bo_init will call ttm_buffer_object_destroy
* to release gbo->bo.base and kfree gbo.
*/
return ret;
return 0;
}
/**
* drm_gem_vram_create() - Creates a VRAM-backed GEM object
* @dev: the DRM device
@ -228,7 +182,13 @@ struct drm_gem_vram_object *drm_gem_vram_create(struct drm_device *dev,
unsigned long pg_align)
{
struct drm_gem_vram_object *gbo;
struct drm_vram_mm *vmm = dev->vram_mm;
struct ttm_bo_device *bdev;
int ret;
size_t acc_size;
if (WARN_ONCE(!vmm, "VRAM MM not initialized"))
return ERR_PTR(-EINVAL);
if (dev->driver->gem_create_object) {
struct drm_gem_object *gem =
@ -242,8 +202,29 @@ struct drm_gem_vram_object *drm_gem_vram_create(struct drm_device *dev,
return ERR_PTR(-ENOMEM);
}
ret = drm_gem_vram_init(dev, gbo, size, pg_align);
if (ret < 0)
gbo->bo.base.funcs = &drm_gem_vram_object_funcs;
ret = drm_gem_object_init(dev, &gbo->bo.base, size);
if (ret) {
kfree(gbo);
return ERR_PTR(ret);
}
bdev = &vmm->bdev;
acc_size = ttm_bo_dma_acc_size(bdev, size, sizeof(*gbo));
gbo->bo.bdev = bdev;
drm_gem_vram_placement(gbo, DRM_GEM_VRAM_PL_FLAG_VRAM |
DRM_GEM_VRAM_PL_FLAG_SYSTEM);
/*
* A failing ttm_bo_init will call ttm_buffer_object_destroy
* to release gbo->bo.base and kfree gbo.
*/
ret = ttm_bo_init(bdev, &gbo->bo, size, ttm_bo_type_device,
&gbo->placement, pg_align, false, acc_size,
NULL, NULL, ttm_buffer_object_destroy);
if (ret)
return ERR_PTR(ret);
return gbo;