Drivers that what to allocate VRAM GEM objects with additional fields
can now do this by implementing struct drm_driver.gem_create_object.
v3:
* separately check allocation failure in if/else branches
before upcast to gbo
v2:
* only cast to gbo within if branch; set gbo directly
in else branch
Signed-off-by: Thomas Zimmermann <tzimmerm...@suse.de>
Reviewed-by: Daniel Vetter <daniel.vet...@ffwll.ch>
Acked-by: Sam Ravnborg <s...@ravnborg.org>
---
drivers/gpu/drm/drm_gem_vram_helper.c | 15 ++++++++++++---
1 file changed, 12 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/drm_gem_vram_helper.c
b/drivers/gpu/drm/drm_gem_vram_helper.c
index 942af7edcd0c..a4863326061a 100644
--- a/drivers/gpu/drm/drm_gem_vram_helper.c
+++ b/drivers/gpu/drm/drm_gem_vram_helper.c
@@ -2,6 +2,7 @@
#include <drm/drm_debugfs.h>
#include <drm/drm_device.h>
+#include <drm/drm_drv.h>
#include <drm/drm_file.h>
#include <drm/drm_framebuffer.h>
#include <drm/drm_gem_ttm_helper.h>
@@ -145,9 +146,17 @@ struct drm_gem_vram_object *drm_gem_vram_create(struct
drm_device *dev,
struct drm_gem_vram_object *gbo;
int ret;
- gbo = kzalloc(sizeof(*gbo), GFP_KERNEL);
- if (!gbo)
- return ERR_PTR(-ENOMEM);
+ if (dev->driver->gem_create_object) {
+ struct drm_gem_object *gem =
+ dev->driver->gem_create_object(dev, size);
+ if (!gem)
+ return ERR_PTR(-ENOMEM);
+ gbo = drm_gem_vram_of_gem(gem);
+ } else {
+ gbo = kzalloc(sizeof(*gbo), GFP_KERNEL);
+ if (!gbo)
+ return ERR_PTR(-ENOMEM);
+ }
ret = drm_gem_vram_init(dev, gbo, size, pg_align);
if (ret < 0)
--
2.24.1
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