1 #ifndef __NOUVEAU_BUFFER_H__
2 #define __NOUVEAU_BUFFER_H__
3
4 #include "util/u_range.h"
5 #include "util/u_transfer.h"
6 #include "util/list.h"
7
8 struct pipe_resource;
9 struct nouveau_context;
10 struct nouveau_bo;
11
12 /* DIRTY: buffer was (or will be after the next flush) written to by GPU and
13 * resource->data has not been updated to reflect modified VRAM contents
14 *
15 * USER_MEMORY: resource->data is a pointer to client memory and may change
16 * between GL calls
17 */
18 #define NOUVEAU_BUFFER_STATUS_GPU_READING (1 << 0)
19 #define NOUVEAU_BUFFER_STATUS_GPU_WRITING (1 << 1)
20 #define NOUVEAU_BUFFER_STATUS_DIRTY (1 << 2)
21 #define NOUVEAU_BUFFER_STATUS_USER_MEMORY (1 << 7)
22
23 #define NOUVEAU_BUFFER_STATUS_REALLOC_MASK NOUVEAU_BUFFER_STATUS_USER_MEMORY
24
25 /* Resources, if mapped into the GPU's address space, are guaranteed to
26 * have constant virtual addresses (nv50+).
27 *
28 * The address of a resource will lie within the nouveau_bo referenced,
29 * and this bo should be added to the memory manager's validation list.
30 */
31 struct nv04_resource {
32 struct pipe_resource base;
33 const struct u_resource_vtbl *vtbl;
34
35 uint64_t address; /* virtual address (nv50+) */
36
37 uint8_t *data; /* resource's contents, if domain == 0, or cached */
38 struct nouveau_bo *bo;
39 uint32_t offset; /* offset into the data/bo */
40
41 uint8_t status;
42 uint8_t domain;
43
44 uint16_t cb_bindings[6]; /* per-shader per-slot bindings */
45
46 struct nouveau_fence *fence;
47 struct nouveau_fence *fence_wr;
48
49 struct nouveau_mm_allocation *mm;
50
51 /* buffer range that has been initialized */
52 struct util_range valid_buffer_range;
53 };
54
55 void
56 nouveau_buffer_release_gpu_storage(struct nv04_resource *);
57
58 void
59 nouveau_copy_buffer(struct nouveau_context *,
60 struct nv04_resource *dst, unsigned dst_pos,
61 struct nv04_resource *src, unsigned src_pos, unsigned size);
62
63 bool
64 nouveau_buffer_migrate(struct nouveau_context *,
65 struct nv04_resource *, unsigned domain);
66
67 void *
68 nouveau_resource_map_offset(struct nouveau_context *, struct nv04_resource *,
69 uint32_t offset, uint32_t flags);
70
71 static inline void
nouveau_resource_unmap(struct nv04_resource * res)72 nouveau_resource_unmap(struct nv04_resource *res)
73 {
74 /* no-op */
75 }
76
77 static inline struct nv04_resource *
nv04_resource(struct pipe_resource * resource)78 nv04_resource(struct pipe_resource *resource)
79 {
80 return (struct nv04_resource *)resource;
81 }
82
83 /* is resource mapped into the GPU's address space (i.e. VRAM or GART) ? */
84 static inline bool
nouveau_resource_mapped_by_gpu(struct pipe_resource * resource)85 nouveau_resource_mapped_by_gpu(struct pipe_resource *resource)
86 {
87 return nv04_resource(resource)->domain != 0;
88 }
89
90 struct pipe_resource *
91 nouveau_buffer_create(struct pipe_screen *pscreen,
92 const struct pipe_resource *templ);
93
94 struct pipe_resource *
95 nouveau_user_buffer_create(struct pipe_screen *screen, void *ptr,
96 unsigned bytes, unsigned usage);
97
98 bool
99 nouveau_user_buffer_upload(struct nouveau_context *, struct nv04_resource *,
100 unsigned base, unsigned size);
101
102 void
103 nouveau_buffer_invalidate(struct pipe_context *pipe,
104 struct pipe_resource *resource);
105
106 /* Copy data to a scratch buffer and return address & bo the data resides in.
107 * Returns 0 on failure.
108 */
109 uint64_t
110 nouveau_scratch_data(struct nouveau_context *,
111 const void *data, unsigned base, unsigned size,
112 struct nouveau_bo **);
113
114 #endif
115