src/gallium/winsys/radeon/drm/radeon_drm_cs.h

   1 /*
   2  * Copyright © 2011 Marek Olšák <maraeo@gmail.com>
   3  * All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining
   6  * a copy of this software and associated documentation files (the
   7  * "Software"), to deal in the Software without restriction, including
   8  * without limitation the rights to use, copy, modify, merge, publish,
   9  * distribute, sub license, and/or sell copies of the Software, and to
  10  * permit persons to whom the Software is furnished to do so, subject to
  11  * the following conditions:
  12  *
  13  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  14  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
  15  * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  16  * NON-INFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS, AUTHORS
  17  * AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  18  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  20  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  21  *
  22  * The above copyright notice and this permission notice (including the
  23  * next paragraph) shall be included in all copies or substantial portions
  24  * of the Software.
  25  */
  26
  27 #ifndef RADEON_DRM_CS_H
  28 #define RADEON_DRM_CS_H
  29
  30 #include "radeon_drm_bo.h"
  31
  32 struct radeon_bo_item {
  33     struct radeon_bo    *bo;
  34     uint64_t            priority_usage;
  35 };
  36
  37 struct radeon_cs_context {
  38     uint32_t                    buf[16 * 1024];
  39
  40     int                         fd;
  41     struct drm_radeon_cs        cs;
  42     struct drm_radeon_cs_chunk  chunks[3];
  43     uint64_t                    chunk_array[3];
  44     uint32_t                    flags[2];
  45
  46     /* Buffers. */
  47     unsigned                    nrelocs;
  48     unsigned                    crelocs;
  49     unsigned                    validated_crelocs;
  50     struct radeon_bo_item       *relocs_bo;
  51     struct drm_radeon_cs_reloc  *relocs;
  52     uint64_t                    *priority_usage;
  53
  54     int                         reloc_indices_hashlist[4096];
  55 };
  56
  57 struct radeon_drm_cs {
  58     struct radeon_winsys_cs base;
  59     enum ring_type          ring_type;
  60
  61     /* We flip between these two CS. While one is being consumed
  62      * by the kernel in another thread, the other one is being filled
  63      * by the pipe driver. */
  64     struct radeon_cs_context csc1;
  65     struct radeon_cs_context csc2;
  66     /* The currently-used CS. */
  67     struct radeon_cs_context *csc;
  68     /* The CS being currently-owned by the other thread. */
  69     struct radeon_cs_context *cst;
  70
  71     /* The winsys. */
  72     struct radeon_drm_winsys *ws;
  73
  74     /* Flush CS. */
  75     void (*flush_cs)(void *ctx, unsigned flags, struct pipe_fence_handle **fence);
  76     void *flush_data;
  77
  78     struct util_queue_fence flush_completed;
  79     struct pipe_fence_handle *next_fence;
  80 };
  81
  82 int radeon_lookup_buffer(struct radeon_cs_context *csc, struct radeon_bo *bo);
  83
  84 static inline struct radeon_drm_cs *
  85 radeon_drm_cs(struct radeon_winsys_cs *base)
  86 {
  87     return (struct radeon_drm_cs*)base;
  88 }
  89
  90 static inline bool
  91 radeon_bo_is_referenced_by_cs(struct radeon_drm_cs *cs,
  92                               struct radeon_bo *bo)
  93 {
  94     int num_refs = bo->num_cs_references;
  95     return num_refs == bo->rws->num_cs ||
  96            (num_refs && radeon_lookup_buffer(cs->csc, bo) != -1);
  97 }
  98
  99 static inline bool
 100 radeon_bo_is_referenced_by_cs_for_write(struct radeon_drm_cs *cs,
 101                                         struct radeon_bo *bo)
 102 {
 103     int index;
 104
 105     if (!bo->num_cs_references)
 106         return false;
 107
 108     index = radeon_lookup_buffer(cs->csc, bo);
 109     if (index == -1)
 110         return false;
 111
 112     return cs->csc->relocs[index].write_domain != 0;
 113 }
 114
 115 static inline bool
 116 radeon_bo_is_referenced_by_any_cs(struct radeon_bo *bo)
 117 {
 118     return bo->num_cs_references != 0;
 119 }
 120
 121 void radeon_drm_cs_sync_flush(struct radeon_winsys_cs *rcs);
 122 void radeon_drm_cs_init_functions(struct radeon_drm_winsys *ws);
 123 void radeon_drm_cs_emit_ioctl_oneshot(void *job, int thread_index);
 124
 125 #endif