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[RADEON_MAX_CMDBUF_DWORDS];
  35
  36     int fd;
  37     struct drm_radeon_cs        cs;
  38     struct drm_radeon_cs_chunk  chunks[3];
  39     uint64_t                    chunk_array[3];
  40     uint32_t                    flags;
  41
  42     /* Relocs. */
  43     unsigned                    nrelocs;
  44     unsigned                    crelocs;
  45     unsigned                    validated_crelocs;
  46     struct radeon_bo            **relocs_bo;
  47     struct drm_radeon_cs_reloc  *relocs;
  48
  49     /* 0 = BO not added, 1 = BO added */
  50     char                        is_handle_added[256];
  51     struct drm_radeon_cs_reloc  *relocs_hashlist[256];
  52     unsigned                    reloc_indices_hashlist[256];
  53
  54     unsigned used_vram;
  55     unsigned used_gart;
  56 };
  57
  58 struct radeon_drm_cs {
  59     struct radeon_winsys_cs base;
  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);
  76     void *flush_data;
  77
  78     pipe_thread thread;
  79     int flush_started, kill_thread;
  80     pipe_semaphore flush_queued, flush_completed;
  81 };
  82
  83 int radeon_get_reloc(struct radeon_cs_context *csc, struct radeon_bo *bo);
  84
  85 static INLINE struct radeon_drm_cs *
  86 radeon_drm_cs(struct radeon_winsys_cs *base)
  87 {
  88     return (struct radeon_drm_cs*)base;
  89 }
  90
  91 static INLINE boolean
  92 radeon_bo_is_referenced_by_cs(struct radeon_drm_cs *cs,
  93                               struct radeon_bo *bo)
  94 {
  95     int num_refs = bo->num_cs_references;
  96     return num_refs == bo->rws->num_cs ||
  97            (num_refs && radeon_get_reloc(cs->csc, bo) != -1);
  98 }
  99
 100 static INLINE boolean
 101 radeon_bo_is_referenced_by_cs_for_write(struct radeon_drm_cs *cs,
 102                                         struct radeon_bo *bo)
 103 {
 104     int index;
 105
 106     if (!bo->num_cs_references)
 107         return FALSE;
 108
 109     index = radeon_get_reloc(cs->csc, bo);
 110     if (index == -1)
 111         return FALSE;
 112
 113     return cs->csc->relocs[index].write_domain != 0;
 114 }
 115
 116 static INLINE boolean
 117 radeon_bo_is_referenced_by_any_cs(struct radeon_bo *bo)
 118 {
 119     return bo->num_cs_references != 0;
 120 }
 121
 122 void radeon_drm_cs_sync_flush(struct radeon_drm_cs *cs);
 123 void radeon_drm_cs_init_functions(struct radeon_drm_winsys *ws);
 124
 125 #endif