1#ifndef __NOUVEAU_BUFFER_H__ 2#define __NOUVEAU_BUFFER_H__ 3 4#include "util/u_transfer.h" 5#include "util/u_double_list.h" 6 7struct pipe_resource; 8struct nouveau_context; 9struct nouveau_bo; 10 11/* DIRTY: buffer was (or will be after the next flush) written to by GPU and 12 * resource->data has not been updated to reflect modified VRAM contents 13 * 14 * USER_MEMORY: resource->data is a pointer to client memory and may change 15 * between GL calls 16 */ 17#define NOUVEAU_BUFFER_STATUS_GPU_READING (1 << 0) 18#define NOUVEAU_BUFFER_STATUS_GPU_WRITING (1 << 1) 19#define NOUVEAU_BUFFER_STATUS_USER_MEMORY (1 << 7) 20 21/* Resources, if mapped into the GPU's address space, are guaranteed to 22 * have constant virtual addresses (nv50+). 23 * 24 * The address of a resource will lie within the nouveau_bo referenced, 25 * and this bo should be added to the memory manager's validation list. 26 */ 27struct nv04_resource { 28 struct pipe_resource base; 29 const struct u_resource_vtbl *vtbl; 30 31 uint64_t address; /* virtual address (nv50+) */ 32 33 uint8_t *data; 34 struct nouveau_bo *bo; 35 uint32_t offset; 36 37 uint8_t status; 38 uint8_t domain; 39 40 struct nouveau_fence *fence; 41 struct nouveau_fence *fence_wr; 42 43 struct nouveau_mm_allocation *mm; 44}; 45 46void 47nouveau_buffer_release_gpu_storage(struct nv04_resource *); 48 49boolean 50nouveau_buffer_download(struct nouveau_context *, struct nv04_resource *, 51 unsigned start, unsigned size); 52 53boolean 54nouveau_buffer_migrate(struct nouveau_context *, 55 struct nv04_resource *, unsigned domain); 56 57void * 58nouveau_resource_map_offset(struct nouveau_context *, struct nv04_resource *, 59 uint32_t offset, uint32_t flags); 60 61static INLINE void 62nouveau_resource_unmap(struct nv04_resource *res) 63{ 64 /* no-op */ 65} 66 67static INLINE struct nv04_resource * 68nv04_resource(struct pipe_resource *resource) 69{ 70 return (struct nv04_resource *)resource; 71} 72 73/* is resource mapped into the GPU's address space (i.e. VRAM or GART) ? */ 74static INLINE boolean 75nouveau_resource_mapped_by_gpu(struct pipe_resource *resource) 76{ 77 return nv04_resource(resource)->domain != 0; 78} 79 80struct pipe_resource * 81nouveau_buffer_create(struct pipe_screen *pscreen, 82 const struct pipe_resource *templ); 83 84struct pipe_resource * 85nouveau_user_buffer_create(struct pipe_screen *screen, void *ptr, 86 unsigned bytes, unsigned usage); 87 88boolean 89nouveau_user_buffer_upload(struct nouveau_context *, struct nv04_resource *, 90 unsigned base, unsigned size); 91 92/* Copy data to a scratch buffer and return address & bo the data resides in. 93 * Returns 0 on failure. 94 */ 95uint64_t 96nouveau_scratch_data(struct nouveau_context *, 97 const void *data, unsigned base, unsigned size, 98 struct nouveau_bo **); 99 100#endif 101