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#ifndef __NOUVEAU_BUFFER_H__
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#define __NOUVEAU_BUFFER_H__
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#include "util/u_transfer.h"
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#include "util/u_double_list.h"
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struct nouveau_context;
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/* DIRTY: buffer was (or will be after the next flush) written to by GPU and
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* resource->data has not been updated to reflect modified VRAM contents
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* USER_MEMORY: resource->data is a pointer to client memory and may change
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#define NOUVEAU_BUFFER_STATUS_GPU_READING (1 << 0)
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#define NOUVEAU_BUFFER_STATUS_GPU_WRITING (1 << 1)
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#define NOUVEAU_BUFFER_STATUS_USER_MEMORY (1 << 7)
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/* Resources, if mapped into the GPU's address space, are guaranteed to
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* have constant virtual addresses (nv50+).
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* The address of a resource will lie within the nouveau_bo referenced,
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* and this bo should be added to the memory manager's validation list.
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struct nv04_resource {
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struct pipe_resource base;
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const struct u_resource_vtbl *vtbl;
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uint64_t address; /* virtual address (nv50+) */
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struct nouveau_bo *bo;
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struct nouveau_fence *fence;
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struct nouveau_fence *fence_wr;
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struct nouveau_mm_allocation *mm;
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nouveau_buffer_release_gpu_storage(struct nv04_resource *);
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nouveau_buffer_download(struct nouveau_context *, struct nv04_resource *,
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unsigned start, unsigned size);
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nouveau_buffer_migrate(struct nouveau_context *,
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struct nv04_resource *, unsigned domain);
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nouveau_resource_map_offset(struct nouveau_context *, struct nv04_resource *,
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uint32_t offset, uint32_t flags);
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nouveau_resource_unmap(struct nv04_resource *res)
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static INLINE struct nv04_resource *
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nv04_resource(struct pipe_resource *resource)
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return (struct nv04_resource *)resource;
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/* is resource mapped into the GPU's address space (i.e. VRAM or GART) ? */
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nouveau_resource_mapped_by_gpu(struct pipe_resource *resource)
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return nv04_resource(resource)->domain != 0;
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struct pipe_resource *
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nouveau_buffer_create(struct pipe_screen *pscreen,
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const struct pipe_resource *templ);
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struct pipe_resource *
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nouveau_user_buffer_create(struct pipe_screen *screen, void *ptr,
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unsigned bytes, unsigned usage);
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nouveau_user_buffer_upload(struct nouveau_context *, struct nv04_resource *,
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unsigned base, unsigned size);
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/* Copy data to a scratch buffer and return address & bo the data resides in.
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* Returns 0 on failure.
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nouveau_scratch_data(struct nouveau_context *,
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const void *data, unsigned base, unsigned size,
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struct nouveau_bo **);