/*
 * Copyright © 2008 Jérôme Glisse
 * Copyright © 2011 Marek Olšák <maraeo@gmail.com>
 * All Rights Reserved.
 *
 * 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, sub license, 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 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
 * NON-INFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS, AUTHORS
 * AND/OR ITS SUPPLIERS 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.
 *
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial portions
 * of the Software.
 */
/*
 * Authors:
 *      Jérôme Glisse <glisse@freedesktop.org>
 *      Marek Olšák <maraeo@gmail.com>
 */
#ifndef RADEON_DRM_BO_H
#define RADEON_DRM_BO_H

#include "radeon_drm_winsys.h"
#include "os/os_thread.h"
#include "pipebuffer/pb_slab.h"

struct radeon_bo {
    struct pb_buffer base;
    union {
        struct {
            struct pb_cache_entry cache_entry;

            void *ptr;
            pipe_mutex map_mutex;
            unsigned map_count;
            bool use_reusable_pool;
        } real;
        struct {
            struct pb_slab_entry entry;
            struct radeon_bo *real;

            unsigned num_fences;
            unsigned max_fences;
            struct radeon_bo **fences;
        } slab;
    } u;

    struct radeon_drm_winsys *rws;
    void *user_ptr; /* from buffer_from_ptr */

    uint32_t handle; /* 0 for slab entries */
    uint32_t flink_name;
    uint64_t va;
    uint32_t hash;
    enum radeon_bo_domain initial_domain;

    /* how many command streams is this bo referenced in? */
    int num_cs_references;

    /* how many command streams, which are being emitted in a separate
     * thread, is this bo referenced in? */
    int num_active_ioctls;
};

struct radeon_slab {
    struct pb_slab base;
    struct radeon_bo *buffer;
    struct radeon_bo *entries;
};

void radeon_bo_destroy(struct pb_buffer *_buf);
bool radeon_bo_can_reclaim(struct pb_buffer *_buf);
void radeon_drm_bo_init_functions(struct radeon_drm_winsys *ws);

bool radeon_bo_can_reclaim_slab(void *priv, struct pb_slab_entry *entry);
struct pb_slab *radeon_bo_slab_alloc(void *priv, unsigned heap,
                                     unsigned entry_size,
                                     unsigned group_index);
void radeon_bo_slab_free(void *priv, struct pb_slab *slab);

static inline
void radeon_bo_reference(struct radeon_bo **dst, struct radeon_bo *src)
{
    pb_reference((struct pb_buffer**)dst, (struct pb_buffer*)src);
}

void *radeon_bo_do_map(struct radeon_bo *bo);

#endif
