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 * USER_PTR: bo is backed by user memory mapped into the GPUs VM
19 */
20 #define NOUVEAU_BUFFER_STATUS_GPU_READING (1 << 0)
21 #define NOUVEAU_BUFFER_STATUS_GPU_WRITING (1 << 1)
22 #define NOUVEAU_BUFFER_STATUS_DIRTY (1 << 2)
23 #define NOUVEAU_BUFFER_STATUS_USER_PTR (1 << 6)
24 #define NOUVEAU_BUFFER_STATUS_USER_MEMORY (1 << 7)
25
26 #define NOUVEAU_BUFFER_STATUS_REALLOC_MASK NOUVEAU_BUFFER_STATUS_USER_MEMORY
27
28 /* Resources, if mapped into the GPU's address space, are guaranteed to
29 * have constant virtual addresses (nv50+).
30 *
31 * The address of a resource will lie within the nouveau_bo referenced,
32 * and this bo should be added to the memory manager's validation list.
33 */
34 struct nv04_resource {
35 struct pipe_resource base;
36
37 uint64_t address; /* virtual address (nv50+) */
38
39 uint8_t *data; /* resource's contents, if domain == 0, or cached */
40 struct nouveau_bo *bo;
41 uint32_t offset; /* offset into the data/bo */
42
43 uint8_t status;
44 uint8_t domain;
45
46 uint16_t cb_bindings[6]; /* per-shader per-slot bindings */
47
48 struct nouveau_fence *fence;
49 struct nouveau_fence *fence_wr;
50
51 struct nouveau_mm_allocation *mm;
52
53 /* buffer range that has been initialized */
54 struct util_range valid_buffer_range;
55 };
56
57 void
58 nouveau_buffer_release_gpu_storage(struct nv04_resource *);
59
60 void
61 nouveau_copy_buffer(struct nouveau_context *,
62 struct nv04_resource *dst, unsigned dst_pos,
63 struct nv04_resource *src, unsigned src_pos, unsigned size);
64
65 bool
66 nouveau_buffer_migrate(struct nouveau_context *,
67 struct nv04_resource *, unsigned domain);
68
69 void *
70 nouveau_resource_map_offset(struct nouveau_context *, struct nv04_resource *,
71 uint32_t offset, uint32_t flags);
72
73 void
74 nouveau_buffer_destroy(struct pipe_screen *pscreen,
75 struct pipe_resource *presource);
76
77 void
78 nouveau_buffer_transfer_flush_region(struct pipe_context *pipe,
79 struct pipe_transfer *transfer,
80 const struct pipe_box *box);
81
82 static inline void
nouveau_resource_unmap(struct nv04_resource * res)83 nouveau_resource_unmap(struct nv04_resource *res)
84 {
85 /* no-op */
86 }
87
88 static inline struct nv04_resource *
nv04_resource(struct pipe_resource * resource)89 nv04_resource(struct pipe_resource *resource)
90 {
91 return (struct nv04_resource *)resource;
92 }
93
94 /* is resource mapped into the GPU's address space (i.e. VRAM or GART) ? */
95 static inline bool
nouveau_resource_mapped_by_gpu(struct pipe_resource * resource)96 nouveau_resource_mapped_by_gpu(struct pipe_resource *resource)
97 {
98 return nv04_resource(resource)->domain != 0;
99 }
100
101 struct pipe_resource *
102 nouveau_buffer_create(struct pipe_screen *pscreen,
103 const struct pipe_resource *templ);
104
105 struct pipe_resource *
106 nouveau_buffer_create_from_user(struct pipe_screen *pscreen,
107 const struct pipe_resource *templ,
108 void *user_ptr);
109
110 struct pipe_resource *
111 nouveau_user_buffer_create(struct pipe_screen *screen, void *ptr,
112 unsigned bytes, unsigned usage);
113
114 bool
115 nouveau_user_buffer_upload(struct nouveau_context *, struct nv04_resource *,
116 unsigned base, unsigned size);
117
118 void
119 nouveau_buffer_invalidate(struct pipe_context *pipe,
120 struct pipe_resource *resource);
121
122 /* Copy data to a scratch buffer and return address & bo the data resides in.
123 * Returns 0 on failure.
124 */
125 uint64_t
126 nouveau_scratch_data(struct nouveau_context *,
127 const void *data, unsigned base, unsigned size,
128 struct nouveau_bo **);
129
130 void *
131 nouveau_buffer_transfer_map(struct pipe_context *pipe,
132 struct pipe_resource *resource,
133 unsigned level, unsigned usage,
134 const struct pipe_box *box,
135 struct pipe_transfer **ptransfer);
136
137 void
138 nouveau_buffer_transfer_unmap(struct pipe_context *pipe,
139 struct pipe_transfer *transfer);
140
141 #endif
142