diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/include/nvkm/core/mm.h')
| -rw-r--r-- | drivers/gpu/drm/nouveau/include/nvkm/core/mm.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/core/mm.h b/drivers/gpu/drm/nouveau/include/nvkm/core/mm.h new file mode 100644 index 000000000000..096eb1a623ee --- /dev/null +++ b/drivers/gpu/drm/nouveau/include/nvkm/core/mm.h @@ -0,0 +1,40 @@ +#ifndef __NVKM_MM_H__ +#define __NVKM_MM_H__ +#include <core/os.h> + +struct nvkm_mm_node { + struct list_head nl_entry; + struct list_head fl_entry; + struct list_head rl_entry; + +#define NVKM_MM_HEAP_ANY 0x00 + u8 heap; +#define NVKM_MM_TYPE_NONE 0x00 +#define NVKM_MM_TYPE_HOLE 0xff + u8 type; + u32 offset; + u32 length; +}; + +struct nvkm_mm { + struct list_head nodes; + struct list_head free; + + u32 block_size; + int heap_nodes; +}; + +static inline bool +nvkm_mm_initialised(struct nvkm_mm *mm) +{ + return mm->block_size != 0; +} + +int nvkm_mm_init(struct nvkm_mm *, u32 offset, u32 length, u32 block); +int nvkm_mm_fini(struct nvkm_mm *); +int nvkm_mm_head(struct nvkm_mm *, u8 heap, u8 type, u32 size_max, + u32 size_min, u32 align, struct nvkm_mm_node **); +int nvkm_mm_tail(struct nvkm_mm *, u8 heap, u8 type, u32 size_max, + u32 size_min, u32 align, struct nvkm_mm_node **); +void nvkm_mm_free(struct nvkm_mm *, struct nvkm_mm_node **); +#endif |