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#ifndef __NOUVEAU_BUFFER_H__
#define __NOUVEAU_BUFFER_H__
#include "util/u_transfer.h"
#include "util/u_double_list.h"
struct pipe_resource;
struct nouveau_context;
struct nouveau_bo;
/* DIRTY: buffer was (or will be after the next flush) written to by GPU and
* resource->data has not been updated to reflect modified VRAM contents
*
* USER_MEMORY: resource->data is a pointer to client memory and may change
* between GL calls
*/
#define NOUVEAU_BUFFER_STATUS_GPU_READING (1 << 0)
#define NOUVEAU_BUFFER_STATUS_GPU_WRITING (1 << 1)
#define NOUVEAU_BUFFER_STATUS_USER_MEMORY (1 << 7)
/* Resources, if mapped into the GPU's address space, are guaranteed to
* have constant virtual addresses (nv50+).
*
* The address of a resource will lie within the nouveau_bo referenced,
* and this bo should be added to the memory manager's validation list.
*/
struct nv04_resource {
struct pipe_resource base;
const struct u_resource_vtbl *vtbl;
uint64_t address; /* virtual address (nv50+) */
uint8_t *data;
struct nouveau_bo *bo;
uint32_t offset;
uint8_t status;
uint8_t domain;
struct nouveau_fence *fence;
struct nouveau_fence *fence_wr;
struct nouveau_mm_allocation *mm;
};
void
nouveau_buffer_release_gpu_storage(struct nv04_resource *);
boolean
nouveau_buffer_download(struct nouveau_context *, struct nv04_resource *,
unsigned start, unsigned size);
boolean
nouveau_buffer_migrate(struct nouveau_context *,
struct nv04_resource *, unsigned domain);
void *
nouveau_resource_map_offset(struct nouveau_context *, struct nv04_resource *,
uint32_t offset, uint32_t flags);
static INLINE void
nouveau_resource_unmap(struct nv04_resource *res)
{
/* no-op */
}
static INLINE struct nv04_resource *
nv04_resource(struct pipe_resource *resource)
{
return (struct nv04_resource *)resource;
}
/* is resource mapped into the GPU's address space (i.e. VRAM or GART) ? */
static INLINE boolean
nouveau_resource_mapped_by_gpu(struct pipe_resource *resource)
{
return nv04_resource(resource)->domain != 0;
}
struct pipe_resource *
nouveau_buffer_create(struct pipe_screen *pscreen,
const struct pipe_resource *templ);
struct pipe_resource *
nouveau_user_buffer_create(struct pipe_screen *screen, void *ptr,
unsigned bytes, unsigned usage);
boolean
nouveau_user_buffer_upload(struct nouveau_context *, struct nv04_resource *,
unsigned base, unsigned size);
/* Copy data to a scratch buffer, update buffer address.
* Returns the bo the data resides in, or NULL on failure.
*/
struct nouveau_bo *
nouveau_scratch_data(struct nouveau_context *,
struct nv04_resource *, unsigned base, unsigned size);
#endif
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