src/gallium/drivers/nouveau/nouveau_buffer.h

   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
  72 nouveau_resource_unmap(struct nv04_resource *res)
  73 {
  74    /* no-op */
  75 }
  76
  77 static inline struct nv04_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
  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