1 #ifndef __NOUVEAU_CONTEXT_H__
2 #define __NOUVEAU_CONTEXT_H__
3
4 #include "pipe/p_context.h"
5 #include <libdrm/nouveau.h>
6
7 #define NOUVEAU_MAX_SCRATCH_BUFS 4
8
9 struct nouveau_context {
10 struct pipe_context pipe;
11 struct nouveau_screen *screen;
12
13 struct nouveau_client *client;
14 struct nouveau_pushbuf *pushbuf;
15
16 boolean vbo_dirty;
17 boolean cb_dirty;
18
19 void (*copy_data)(struct nouveau_context *,
20 struct nouveau_bo *dst, unsigned, unsigned,
21 struct nouveau_bo *src, unsigned, unsigned, unsigned);
22 void (*push_data)(struct nouveau_context *,
23 struct nouveau_bo *dst, unsigned, unsigned,
24 unsigned, const void *);
25 /* base, size refer to the whole constant buffer */
26 void (*push_cb)(struct nouveau_context *,
27 struct nouveau_bo *, unsigned domain,
28 unsigned base, unsigned size,
29 unsigned offset, unsigned words, const uint32_t *);
30
31 struct {
32 uint8_t *map;
33 unsigned id;
34 unsigned wrap;
35 unsigned offset;
36 unsigned end;
37 struct nouveau_bo *bo[NOUVEAU_MAX_SCRATCH_BUFS];
38 struct nouveau_bo *current;
39 struct nouveau_bo **runout;
40 unsigned nr_runout;
41 unsigned bo_size;
42 } scratch;
43 };
44
45 static INLINE struct nouveau_context *
nouveau_context(struct pipe_context * pipe)46 nouveau_context(struct pipe_context *pipe)
47 {
48 return (struct nouveau_context *)pipe;
49 }
50
51 void
52 nouveau_context_init_vdec(struct nouveau_context *);
53
54 void
55 nouveau_scratch_runout_release(struct nouveau_context *);
56
57 /* This is needed because we don't hold references outside of context::scratch,
58 * because we don't want to un-bo_ref each allocation every time. This is less
59 * work, and we need the wrap index anyway for extreme situations.
60 */
61 static INLINE void
nouveau_scratch_done(struct nouveau_context * nv)62 nouveau_scratch_done(struct nouveau_context *nv)
63 {
64 nv->scratch.wrap = nv->scratch.id;
65 if (unlikely(nv->scratch.nr_runout))
66 nouveau_scratch_runout_release(nv);
67 }
68
69 /* Get pointer to scratch buffer.
70 * The returned nouveau_bo is only referenced by the context, don't un-ref it !
71 */
72 void *
73 nouveau_scratch_get(struct nouveau_context *, unsigned size, uint64_t *gpu_addr,
74 struct nouveau_bo **);
75
76 static INLINE void
nouveau_context_destroy(struct nouveau_context * ctx)77 nouveau_context_destroy(struct nouveau_context *ctx)
78 {
79 int i;
80
81 for (i = 0; i < NOUVEAU_MAX_SCRATCH_BUFS; ++i)
82 if (ctx->scratch.bo[i])
83 nouveau_bo_ref(NULL, &ctx->scratch.bo[i]);
84
85 FREE(ctx);
86 }
87 #endif
88