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      1 /*
      2  * Copyright  2008 Jrme Glisse
      3  * Copyright  2011 Marek Olk <maraeo (at) gmail.com>
      4  * Copyright  2015 Advanced Micro Devices, Inc.
      5  * All Rights Reserved.
      6  *
      7  * Permission is hereby granted, free of charge, to any person obtaining
      8  * a copy of this software and associated documentation files (the
      9  * "Software"), to deal in the Software without restriction, including
     10  * without limitation the rights to use, copy, modify, merge, publish,
     11  * distribute, sub license, and/or sell copies of the Software, and to
     12  * permit persons to whom the Software is furnished to do so, subject to
     13  * the following conditions:
     14  *
     15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
     16  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
     17  * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
     18  * NON-INFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS, AUTHORS
     19  * AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
     22  * USE OR OTHER DEALINGS IN THE SOFTWARE.
     23  *
     24  * The above copyright notice and this permission notice (including the
     25  * next paragraph) shall be included in all copies or substantial portions
     26  * of the Software.
     27  */
     28 /*
     29  * Authors:
     30  *      Marek Olk <maraeo (at) gmail.com>
     31  */
     32 
     33 #ifndef AMDGPU_BO_H
     34 #define AMDGPU_BO_H
     35 
     36 #include "amdgpu_winsys.h"
     37 
     38 #include "pipebuffer/pb_slab.h"
     39 
     40 struct amdgpu_winsys_bo {
     41    struct pb_buffer base;
     42    union {
     43       struct {
     44          struct pb_cache_entry cache_entry;
     45 
     46          amdgpu_va_handle va_handle;
     47          int map_count;
     48          bool use_reusable_pool;
     49 
     50          struct list_head global_list_item;
     51       } real;
     52       struct {
     53          struct pb_slab_entry entry;
     54          struct amdgpu_winsys_bo *real;
     55       } slab;
     56    } u;
     57 
     58    struct amdgpu_winsys *ws;
     59    void *user_ptr; /* from buffer_from_ptr */
     60 
     61    amdgpu_bo_handle bo; /* NULL for slab entries */
     62    uint32_t unique_id;
     63    uint64_t va;
     64    enum radeon_bo_domain initial_domain;
     65 
     66    /* how many command streams is this bo referenced in? */
     67    int num_cs_references;
     68 
     69    /* how many command streams, which are being emitted in a separate
     70     * thread, is this bo referenced in? */
     71    volatile int num_active_ioctls;
     72 
     73    /* whether buffer_get_handle or buffer_from_handle was called,
     74     * it can only transition from false to true
     75     */
     76    volatile int is_shared; /* bool (int for atomicity) */
     77 
     78    /* Fences for buffer synchronization. */
     79    unsigned num_fences;
     80    unsigned max_fences;
     81    struct pipe_fence_handle **fences;
     82 };
     83 
     84 struct amdgpu_slab {
     85    struct pb_slab base;
     86    struct amdgpu_winsys_bo *buffer;
     87    struct amdgpu_winsys_bo *entries;
     88 };
     89 
     90 bool amdgpu_bo_can_reclaim(struct pb_buffer *_buf);
     91 void amdgpu_bo_destroy(struct pb_buffer *_buf);
     92 void amdgpu_bo_init_functions(struct amdgpu_winsys *ws);
     93 
     94 bool amdgpu_bo_can_reclaim_slab(void *priv, struct pb_slab_entry *entry);
     95 struct pb_slab *amdgpu_bo_slab_alloc(void *priv, unsigned heap,
     96                                      unsigned entry_size,
     97                                      unsigned group_index);
     98 void amdgpu_bo_slab_free(void *priv, struct pb_slab *slab);
     99 
    100 static inline
    101 struct amdgpu_winsys_bo *amdgpu_winsys_bo(struct pb_buffer *bo)
    102 {
    103    return (struct amdgpu_winsys_bo *)bo;
    104 }
    105 
    106 static inline
    107 struct amdgpu_slab *amdgpu_slab(struct pb_slab *slab)
    108 {
    109    return (struct amdgpu_slab *)slab;
    110 }
    111 
    112 static inline
    113 void amdgpu_winsys_bo_reference(struct amdgpu_winsys_bo **dst,
    114                                 struct amdgpu_winsys_bo *src)
    115 {
    116    pb_reference((struct pb_buffer**)dst, (struct pb_buffer*)src);
    117 }
    118 
    119 #endif
    120