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/u_double_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    struct nouveau_fence *fence;
  45    struct nouveau_fence *fence_wr;
  46
  47    struct nouveau_mm_allocation *mm;
  48
  49    /* buffer range that has been initialized */
  50    struct util_range valid_buffer_range;
  51 };
  52
  53 void
  54 nouveau_buffer_release_gpu_storage(struct nv04_resource *);
  55
  56 void
  57 nouveau_copy_buffer(struct nouveau_context *,
  58                     struct nv04_resource *dst, unsigned dst_pos,
  59                     struct nv04_resource *src, unsigned src_pos, unsigned size);
  60
  61 boolean
  62 nouveau_buffer_migrate(struct nouveau_context *,
  63                        struct nv04_resource *, unsigned domain);
  64
  65 void *
  66 nouveau_resource_map_offset(struct nouveau_context *, struct nv04_resource *,
  67                             uint32_t offset, uint32_t flags);
  68
  69 static INLINE void
  70 nouveau_resource_unmap(struct nv04_resource *res)
  71 {
  72    /* no-op */
  73 }
  74
  75 static INLINE struct nv04_resource *
  76 nv04_resource(struct pipe_resource *resource)
  77 {
  78    return (struct nv04_resource *)resource;
  79 }
  80
  81 /* is resource mapped into the GPU's address space (i.e. VRAM or GART) ? */
  82 static INLINE boolean
  83 nouveau_resource_mapped_by_gpu(struct pipe_resource *resource)
  84 {
  85    return nv04_resource(resource)->domain != 0;
  86 }
  87
  88 struct pipe_resource *
  89 nouveau_buffer_create(struct pipe_screen *pscreen,
  90                       const struct pipe_resource *templ);
  91
  92 struct pipe_resource *
  93 nouveau_user_buffer_create(struct pipe_screen *screen, void *ptr,
  94                            unsigned bytes, unsigned usage);
  95
  96 boolean
  97 nouveau_user_buffer_upload(struct nouveau_context *, struct nv04_resource *,
  98                            unsigned base, unsigned size);
  99
 100 /* Copy data to a scratch buffer and return address & bo the data resides in.
 101  * Returns 0 on failure.
 102  */
 103 uint64_t
 104 nouveau_scratch_data(struct nouveau_context *,
 105                      const void *data, unsigned base, unsigned size,
 106                      struct nouveau_bo **);
 107
 108 #endif