drivers/gpu/drm/gma500/gem.h

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/gma500/gem.h

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/gma500/gem.h
Extension
.h
Size
1284 bytes
Lines
52
Domain
Driver Families
Bucket
drivers/gpu
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

struct psb_gem_object {
	struct drm_gem_object base;

	struct resource resource;	/* GTT resource for our allocation */
	u32 offset;			/* GTT offset of our object */
	int in_gart;			/* Currently in the GART (ref ct) */
	bool stolen;			/* Backed from stolen RAM */
	bool mmapping;			/* Is mmappable */
	struct page **pages;		/* Backing pages if present */
};

static inline struct psb_gem_object *to_psb_gem_object(struct drm_gem_object *obj)
{
	return container_of(obj, struct psb_gem_object, base);
}

struct psb_gem_object *
psb_gem_create(struct drm_device *dev, u64 size, const char *name, bool stolen, u32 align);

int psb_gem_pin(struct psb_gem_object *pobj);
void psb_gem_unpin(struct psb_gem_object *pobj);

/*
 * Memory management
 */

int psb_gem_mm_init(struct drm_device *dev);
void psb_gem_mm_fini(struct drm_device *dev);
int psb_gem_mm_resume(struct drm_device *dev);

#endif

Annotation

Implementation Notes