src/gallium/drivers/nouveau/nouveau_buffer.h

   1 #ifndef __NOUVEAU_BUFFER_H__
   2 #define __NOUVEAU_BUFFER_H__
   3
   4 #include "util/u_transfer.h"
   5 #include "util/u_double_list.h"
   6
   7 struct pipe_resource;
   8 struct nouveau_context;
   9 struct nouveau_bo;
  10
  11 /* DIRTY: buffer was (or will be after the next flush) written to by GPU and
  12  *  resource->data has not been updated to reflect modified VRAM contents
  13  *
  14  * USER_MEMORY: resource->data is a pointer to client memory and may change
  15  *  between GL calls
  16  */
  17 #define NOUVEAU_BUFFER_STATUS_GPU_READING (1 << 0)
  18 #define NOUVEAU_BUFFER_STATUS_GPU_WRITING (1 << 1)
  19 #define NOUVEAU_BUFFER_STATUS_DIRTY       (1 << 2)
  20 #define NOUVEAU_BUFFER_STATUS_USER_MEMORY (1 << 7)
  21
  22 #define NOUVEAU_BUFFER_STATUS_REALLOC_MASK NOUVEAU_BUFFER_STATUS_USER_MEMORY
  23
  24 /* Resources, if mapped into the GPU's address space, are guaranteed to
  25  * have constant virtual addresses (nv50+).
  26  *
  27  * The address of a resource will lie within the nouveau_bo referenced,
  28  * and this bo should be added to the memory manager's validation list.
  29  */
  30 struct nv04_resource {
  31    struct pipe_resource base;
  32    const struct u_resource_vtbl *vtbl;
  33
  34    uint64_t address; /* virtual address (nv50+) */
  35
  36    uint8_t *data; /* resource's contents, if domain == 0, or cached */
  37    struct nouveau_bo *bo;
  38    uint32_t offset; /* offset into the data/bo */
  39
  40    uint8_t status;
  41    uint8_t domain;
  42
  43    struct nouveau_fence *fence;
  44    struct nouveau_fence *fence_wr;
  45
  46    struct nouveau_mm_allocation *mm;
  47 };
  48
  49 void
  50 nouveau_buffer_release_gpu_storage(struct nv04_resource *);
  51
  52 void
  53 nouveau_copy_buffer(struct nouveau_context *,
  54                     struct nv04_resource *dst, unsigned dst_pos,
  55                     struct nv04_resource *src, unsigned src_pos, unsigned size);
  56
  57 boolean
  58 nouveau_buffer_migrate(struct nouveau_context *,
  59                        struct nv04_resource *, unsigned domain);
  60
  61 void *
  62 nouveau_resource_map_offset(struct nouveau_context *, struct nv04_resource *,
  63                             uint32_t offset, uint32_t flags);
  64
  65 static INLINE void
  66 nouveau_resource_unmap(struct nv04_resource *res)
  67 {
  68    /* no-op */
  69 }
  70
  71 static INLINE struct nv04_resource *
  72 nv04_resource(struct pipe_resource *resource)
  73 {
  74    return (struct nv04_resource *)resource;
  75 }
  76
  77 /* is resource mapped into the GPU's address space (i.e. VRAM or GART) ? */
  78 static INLINE boolean
  79 nouveau_resource_mapped_by_gpu(struct pipe_resource *resource)
  80 {
  81    return nv04_resource(resource)->domain != 0;
  82 }
  83
  84 struct pipe_resource *
  85 nouveau_buffer_create(struct pipe_screen *pscreen,
  86                       const struct pipe_resource *templ);
  87
  88 struct pipe_resource *
  89 nouveau_user_buffer_create(struct pipe_screen *screen, void *ptr,
  90                            unsigned bytes, unsigned usage);
  91
  92 boolean
  93 nouveau_user_buffer_upload(struct nouveau_context *, struct nv04_resource *,
  94                            unsigned base, unsigned size);
  95
  96 /* Copy data to a scratch buffer and return address & bo the data resides in.
  97  * Returns 0 on failure.
  98  */
  99 uint64_t
 100 nouveau_scratch_data(struct nouveau_context *,
 101                      const void *data, unsigned base, unsigned size,
 102                      struct nouveau_bo **);
 103
 104 #endif