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/*
* Copyright © 2014 Broadcom
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
#ifndef VC5_BUFMGR_H
#define VC5_BUFMGR_H
#include <stdint.h>
#include "util/u_hash_table.h"
#include "util/u_inlines.h"
#include "util/list.h"
#include "v3d_screen.h"
struct v3d_context;
struct v3d_bo {
struct pipe_reference reference;
struct v3d_screen *screen;
void *map;
const char *name;
uint32_t handle;
uint32_t size;
/* Address of the BO in our page tables. */
uint32_t offset;
/** Entry in the linked list of buffers freed, by age. */
struct list_head time_list;
/** Entry in the per-page-count linked list of buffers freed (by age). */
struct list_head size_list;
/** Approximate second when the bo was freed. */
time_t free_time;
/**
* Whether only our process has a reference to the BO (meaning that
* it's safe to reuse it in the BO cache).
*/
bool private;
};
struct v3d_bo *v3d_bo_alloc(struct v3d_screen *screen, uint32_t size,
const char *name);
void v3d_bo_last_unreference(struct v3d_bo *bo);
void v3d_bo_last_unreference_locked_timed(struct v3d_bo *bo, time_t time);
struct v3d_bo *v3d_bo_open_name(struct v3d_screen *screen, uint32_t name);
struct v3d_bo *v3d_bo_open_dmabuf(struct v3d_screen *screen, int fd);
bool v3d_bo_flink(struct v3d_bo *bo, uint32_t *name);
int v3d_bo_get_dmabuf(struct v3d_bo *bo);
static inline void
v3d_bo_set_reference(struct v3d_bo **old_bo, struct v3d_bo *new_bo)
{
if (pipe_reference(&(*old_bo)->reference, &new_bo->reference))
v3d_bo_last_unreference(*old_bo);
*old_bo = new_bo;
}
static inline struct v3d_bo *
v3d_bo_reference(struct v3d_bo *bo)
{
pipe_reference(NULL, &bo->reference);
return bo;
}
static inline void
v3d_bo_unreference(struct v3d_bo **bo)
{
struct v3d_screen *screen;
if (!*bo)
return;
if ((*bo)->private) {
/* Avoid the mutex for private BOs */
if (pipe_reference(&(*bo)->reference, NULL))
v3d_bo_last_unreference(*bo);
} else {
screen = (*bo)->screen;
mtx_lock(&screen->bo_handles_mutex);
if (pipe_reference(&(*bo)->reference, NULL)) {
_mesa_hash_table_remove_key(screen->bo_handles,
(void *)(uintptr_t)(*bo)->handle);
v3d_bo_last_unreference(*bo);
}
mtx_unlock(&screen->bo_handles_mutex);
}
*bo = NULL;
}
static inline void
v3d_bo_unreference_locked_timed(struct v3d_bo **bo, time_t time)
{
if (!*bo)
return;
if (pipe_reference(&(*bo)->reference, NULL))
v3d_bo_last_unreference_locked_timed(*bo, time);
*bo = NULL;
}
void *
v3d_bo_map(struct v3d_bo *bo);
void *
v3d_bo_map_unsynchronized(struct v3d_bo *bo);
bool
v3d_bo_wait(struct v3d_bo *bo, uint64_t timeout_ns, const char *reason);
bool
v3d_wait_seqno(struct v3d_screen *screen, uint64_t seqno, uint64_t timeout_ns,
const char *reason);
void
v3d_bufmgr_destroy(struct pipe_screen *pscreen);
#endif /* VC5_BUFMGR_H */
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