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 #include <radeon_drm.h>
  32
  33 struct radeon_cs_context {
  34     uint32_t                    buf[R300_MAX_CMDBUF_DWORDS];
  35
  36     int fd;
  37     struct drm_radeon_cs        cs;
  38     struct drm_radeon_cs_chunk  chunks[2];
  39     uint64_t                    chunk_array[2];
  40
  41     /* Relocs. */
  42     unsigned                    nrelocs;
  43     unsigned                    crelocs;
  44     struct radeon_bo            **relocs_bo;
  45     struct drm_radeon_cs_reloc  *relocs;
  46
  47     /* 0 = BO not added, 1 = BO added */
  48     char                        is_handle_added[256];
  49     struct drm_radeon_cs_reloc  *relocs_hashlist[256];
  50     unsigned                    reloc_indices_hashlist[256];
  51
  52     unsigned used_vram;
  53     unsigned used_gart;
  54 };
  55
  56 struct radeon_drm_cs {
  57     struct r300_winsys_cs base;
  58
  59     /* We flip between these two CS. While one is being consumed
  60      * by the kernel in another thread, the other one is being filled
  61      * by the pipe driver. */
  62     struct radeon_cs_context csc1;
  63     struct radeon_cs_context csc2;
  64     /* The currently-used CS. */
  65     struct radeon_cs_context *csc;
  66     /* The CS being currently-owned by the other thread. */
  67     struct radeon_cs_context *cst;
  68
  69     /* The winsys. */
  70     struct radeon_drm_winsys *ws;
  71
  72     /* Flush CS. */
  73     void (*flush_cs)(void *ctx, unsigned flags);
  74     void *flush_data;
  75
  76     pipe_thread thread;
  77 };
  78
  79 int radeon_get_reloc(struct radeon_cs_context *csc, struct radeon_bo *bo);
  80
  81 static INLINE struct radeon_drm_cs *
  82 radeon_drm_cs(struct r300_winsys_cs *base)
  83 {
  84     return (struct radeon_drm_cs*)base;
  85 }
  86
  87 static INLINE boolean
  88 radeon_bo_is_referenced_by_cs(struct radeon_drm_cs *cs,
  89                               struct radeon_bo *bo)
  90 {
  91     return bo->num_cs_references == bo->rws->num_cs ||
  92            (bo->num_cs_references && radeon_get_reloc(cs->csc, bo) != -1);
  93 }
  94
  95 static INLINE boolean
  96 radeon_bo_is_referenced_by_cs_for_write(struct radeon_drm_cs *cs,
  97                                         struct radeon_bo *bo)
  98 {
  99     int index;
 100
 101     if (!bo->num_cs_references)
 102         return FALSE;
 103
 104     index = radeon_get_reloc(cs->csc, bo);
 105     if (index == -1)
 106         return FALSE;
 107
 108     return cs->csc->relocs[index].write_domain != 0;
 109 }
 110
 111 static INLINE boolean
 112 radeon_bo_is_referenced_by_any_cs(struct radeon_bo *bo)
 113 {
 114     return bo->num_cs_references;
 115 }
 116
 117 void radeon_drm_cs_sync_flush(struct radeon_drm_cs *cs);
 118 void radeon_drm_cs_init_functions(struct radeon_drm_winsys *ws);
 119
 120 #endif