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/*
* Copyright © 2016 Red Hat.
* Copyright © 2016 Bas Nieuwenhuizen
* SPDX-License-Identifier: MIT
*
* based in part on anv driver which is:
* Copyright © 2015 Intel Corporation
*/
#ifndef TU_SUBALLOC_H
#define TU_SUBALLOC_H
#include "tu_common.h"
#include "tu_knl.h"
/* externally-synchronized BO suballocator. */
struct tu_suballocator
{
struct tu_device *dev;
uint32_t default_size;
enum tu_bo_alloc_flags flags;
/** Current BO we're suballocating out of. */
struct tu_bo *bo;
uint32_t next_offset;
/** Optional BO cached for recycling as the next suballoc->bo, instead of having to allocate one. */
struct tu_bo *cached_bo;
const char *name;
};
struct tu_suballoc_bo
{
struct tu_bo *bo;
uint64_t iova;
uint32_t size; /* bytes */
};
void
tu_bo_suballocator_init(struct tu_suballocator *suballoc,
struct tu_device *dev,
uint32_t default_size,
enum tu_bo_alloc_flags flags,
const char *name);
void
tu_bo_suballocator_finish(struct tu_suballocator *suballoc);
VkResult
tu_suballoc_bo_alloc(struct tu_suballoc_bo *suballoc_bo, struct tu_suballocator *suballoc,
uint32_t size, uint32_t alignment);
void *
tu_suballoc_bo_map(struct tu_suballoc_bo *bo);
void
tu_suballoc_bo_free(struct tu_suballocator *suballoc, struct tu_suballoc_bo *bo);
#endif /* TU_SUBALLOC_H */
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