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 * 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 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 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
