drivers/gpu/drm/nouveau/nouveau_mem.h
Source file repositories/reference/linux-study-clean/drivers/gpu/drm/nouveau/nouveau_mem.h
File Facts
- System
- Linux kernel
- Corpus path
drivers/gpu/drm/nouveau/nouveau_mem.h- Extension
.h- Size
- 1222 bytes
- Lines
- 44
- 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.
- 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.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
drm/ttm/ttm_bo.hnvif/mem.hnvif/vmm.h
Detected Declarations
struct ttm_ttstruct nouveau_memfunction nouveau_mem
Annotated Snippet
struct nouveau_mem {
struct ttm_resource base;
struct nouveau_drm *drm;
u8 kind;
u8 comp;
struct nvif_mem mem;
struct nvif_vma vma[2];
};
static inline struct nouveau_mem *
nouveau_mem(struct ttm_resource *reg)
{
return container_of(reg, struct nouveau_mem, base);
}
int nouveau_mem_new(struct nouveau_drm *, u8 kind, u8 comp,
struct ttm_resource **);
void nouveau_mem_del(struct ttm_resource_manager *man,
struct ttm_resource *);
bool nouveau_mem_intersects(struct ttm_resource *res,
const struct ttm_place *place,
size_t size);
bool nouveau_mem_compatible(struct ttm_resource *res,
const struct ttm_place *place,
size_t size);
int nouveau_mem_vram(struct ttm_resource *, bool contig, u8 page);
int nouveau_mem_host(struct ttm_resource *, struct ttm_tt *);
void nouveau_mem_fini(struct nouveau_mem *);
int nouveau_mem_map(struct nouveau_mem *, struct nvif_vmm *, struct nvif_vma *);
int
nouveau_mem_map_fixed(struct nouveau_mem *mem,
struct nvif_vmm *vmm,
u8 kind, u64 addr,
u64 offset, u64 range);
#endif
Annotation
- Immediate include surface: `drm/ttm/ttm_bo.h`, `nvif/mem.h`, `nvif/vmm.h`.
- Detected declarations: `struct ttm_tt`, `struct nouveau_mem`, `function nouveau_mem`.
- Atlas domain: Driver Families / drivers/gpu.
- Implementation status: source implementation candidate.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.