drivers/gpu/drm/xe/xe_ttm_vram_mgr_types.h

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/xe/xe_ttm_vram_mgr_types.h

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/xe/xe_ttm_vram_mgr_types.h
Extension
.h
Size
1272 bytes
Lines
49
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 xe_ttm_vram_mgr {
	/** @manager: Base TTM resource manager */
	struct ttm_resource_manager manager;
	/** @mm: DRM buddy allocator which manages the VRAM */
	struct gpu_buddy mm;
	/** @visible_size: Proped size of the CPU visible portion */
	u64 visible_size;
	/** @visible_avail: CPU visible portion still unallocated */
	u64 visible_avail;
	/** @default_page_size: default page size */
	u64 default_page_size;
	/** @lock: protects allocations of VRAM */
	struct mutex lock;
	/** @mem_type: The TTM memory type */
	u32 mem_type;
};

/**
 * struct xe_ttm_vram_mgr_resource - Xe TTM VRAM resource
 */
struct xe_ttm_vram_mgr_resource {
	/** @base: Base TTM resource */
	struct ttm_resource base;
	/** @blocks: list of DRM buddy blocks */
	struct list_head blocks;
	/** @used_visible_size: How many CPU visible bytes this resource is using */
	u64 used_visible_size;
	/** @flags: flags associated with the resource */
	unsigned long flags;
};

#endif

Annotation

Implementation Notes