nouveau_context.h revision 848b8605 
1#ifndef __NOUVEAU_CONTEXT_H__
2#define __NOUVEAU_CONTEXT_H__
3
4#include "pipe/p_context.h"
5#include <nouveau.h>
6
7#define NOUVEAU_MAX_SCRATCH_BUFS 4
8
9struct 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
18   void (*copy_data)(struct nouveau_context *,
19                     struct nouveau_bo *dst, unsigned, unsigned,
20                     struct nouveau_bo *src, unsigned, unsigned, unsigned);
21   void (*push_data)(struct nouveau_context *,
22                     struct nouveau_bo *dst, unsigned, unsigned,
23                     unsigned, const void *);
24   /* base, size refer to the whole constant buffer */
25   void (*push_cb)(struct nouveau_context *,
26                   struct nouveau_bo *, unsigned domain,
27                   unsigned base, unsigned size,
28                   unsigned offset, unsigned words, const uint32_t *);
29
30   /* @return: @ref reduced by nr of references found in context */
31   int (*invalidate_resource_storage)(struct nouveau_context *,
32                                      struct pipe_resource *,
33                                      int ref);
34
35   struct {
36      uint8_t *map;
37      unsigned id;
38      unsigned wrap;
39      unsigned offset;
40      unsigned end;
41      struct nouveau_bo *bo[NOUVEAU_MAX_SCRATCH_BUFS];
42      struct nouveau_bo *current;
43      struct nouveau_bo **runout;
44      unsigned nr_runout;
45      unsigned bo_size;
46   } scratch;
47
48   struct {
49      uint32_t buf_cache_count;
50      uint32_t buf_cache_frame;
51   } stats;
52};
53
54static INLINE struct nouveau_context *
55nouveau_context(struct pipe_context *pipe)
56{
57   return (struct nouveau_context *)pipe;
58}
59
60void
61nouveau_context_init_vdec(struct nouveau_context *);
62
63void
64nouveau_scratch_runout_release(struct nouveau_context *);
65
66/* This is needed because we don't hold references outside of context::scratch,
67 * because we don't want to un-bo_ref each allocation every time. This is less
68 * work, and we need the wrap index anyway for extreme situations.
69 */
70static INLINE void
71nouveau_scratch_done(struct nouveau_context *nv)
72{
73   nv->scratch.wrap = nv->scratch.id;
74   if (unlikely(nv->scratch.nr_runout))
75      nouveau_scratch_runout_release(nv);
76}
77
78/* Get pointer to scratch buffer.
79 * The returned nouveau_bo is only referenced by the context, don't un-ref it !
80 */
81void *
82nouveau_scratch_get(struct nouveau_context *, unsigned size, uint64_t *gpu_addr,
83                    struct nouveau_bo **);
84
85static INLINE void
86nouveau_context_destroy(struct nouveau_context *ctx)
87{
88   int i;
89
90   for (i = 0; i < NOUVEAU_MAX_SCRATCH_BUFS; ++i)
91      if (ctx->scratch.bo[i])
92         nouveau_bo_ref(NULL, &ctx->scratch.bo[i]);
93
94   FREE(ctx);
95}
96
97static INLINE  void
98nouveau_context_update_frame_stats(struct nouveau_context *nv)
99{
100   nv->stats.buf_cache_frame <<= 1;
101   if (nv->stats.buf_cache_count) {
102      nv->stats.buf_cache_count = 0;
103      nv->stats.buf_cache_frame |= 1;
104      if ((nv->stats.buf_cache_frame & 0xf) == 0xf)
105         nv->screen->hint_buf_keep_sysmem_copy = TRUE;
106   }
107}
108
109#endif
110