src/mesa/drivers/dri/i965/brw_state_pool.c

   1 /*
   2  Copyright (C) Intel Corp.  2006.  All Rights Reserved.
   3  Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to
   4  develop this 3D driver.
   5
   6  Permission is hereby granted, free of charge, to any person obtaining
   7  a copy of this software and associated documentation files (the
   8  "Software"), to deal in the Software without restriction, including
   9  without limitation the rights to use, copy, modify, merge, publish,
  10  distribute, sublicense, and/or sell copies of the Software, and to
  11  permit persons to whom the Software is furnished to do so, subject to
  12  the following conditions:
  13
  14  The above copyright notice and this permission notice (including the
  15  next paragraph) shall be included in all copies or substantial
  16  portions of the Software.
  17
  18  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  19  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  21  IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
  22  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  23  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  24  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25
  26  **********************************************************************/
  27  /*
  28   * Authors:
  29   *   Keith Whitwell <keith@tungstengraphics.com>
  30   */
  31
  32
  33 #include "brw_state.h"
  34 #include "imports.h"
  35
  36 #include "intel_ioctl.h"
  37 #include "bufmgr.h"
  38
  39 GLboolean brw_pool_alloc( struct brw_mem_pool *pool,
  40                           GLuint size,
  41                           GLuint align,
  42                           GLuint *offset_return)
  43 {
  44    GLuint align_mask = (1<<align)-1;
  45    GLuint fixup = ((pool->offset + align_mask) & ~align_mask) - pool->offset;
  46
  47    size = (size + 3) & ~3;
  48
  49    if (pool->offset + fixup + size >= pool->size) {
  50       assert(0);
  51       exit(0);
  52    }
  53
  54    pool->offset += fixup;
  55    *offset_return = pool->offset;
  56    pool->offset += size;
  57
  58    return GL_TRUE;
  59 }
  60
  61 static
  62 void brw_invalidate_pool( struct intel_context *intel,
  63                           struct brw_mem_pool *pool )
  64 {
  65    if (INTEL_DEBUG & DEBUG_STATE)
  66       _mesa_printf("\n\n\n %s \n\n\n", __FUNCTION__);
  67
  68    bmBufferData(intel,
  69                 pool->buffer,
  70                 pool->size,
  71                 NULL,
  72                 0);
  73
  74    pool->offset = 0;
  75
  76    brw_clear_all_caches(pool->brw);
  77 }
  78
  79 static void brw_invalidate_pool_cb( struct intel_context *intel, void *ptr )
  80 {
  81    struct brw_mem_pool *pool = (struct brw_mem_pool *) ptr;
  82
  83    pool->offset = 0;
  84    brw_clear_all_caches(pool->brw);
  85 }
  86
  87
  88
  89 static void brw_init_pool( struct brw_context *brw,
  90                            GLuint pool_id,
  91                            GLuint size )
  92 {
  93    struct brw_mem_pool *pool = &brw->pool[pool_id];
  94
  95    pool->size = size;
  96    pool->brw = brw;
  97
  98    bmGenBuffers(&brw->intel, "pool", 1, &pool->buffer);
  99
 100    /* Also want to say not to wait on fences when data is presented
 101     */
 102    bmBufferSetInvalidateCB(&brw->intel, pool->buffer,
 103                            brw_invalidate_pool_cb,
 104                            pool,
 105                            GL_TRUE);
 106
 107    bmBufferData(&brw->intel,
 108                 pool->buffer,
 109                 pool->size,
 110                 NULL,
 111                 0);
 112
 113 }
 114
 115 static void brw_destroy_pool( struct brw_context *brw,
 116                               GLuint pool_id )
 117 {
 118    struct brw_mem_pool *pool = &brw->pool[pool_id];
 119
 120    bmDeleteBuffers(&brw->intel, 1, &pool->buffer);
 121 }
 122
 123
 124 void brw_pool_check_wrap( struct brw_context *brw,
 125                           struct brw_mem_pool *pool )
 126 {
 127    if (pool->offset > (pool->size * 3) / 4) {
 128       if (brw->intel.aub_file)
 129          brw->intel.aub_wrap = 1;
 130       else
 131          brw->state.dirty.brw |= BRW_NEW_CONTEXT;
 132    }
 133
 134 }
 135
 136 void brw_init_pools( struct brw_context *brw )
 137 {
 138    brw_init_pool(brw, BRW_GS_POOL, 0x80000);
 139    brw_init_pool(brw, BRW_SS_POOL, 0x80000);
 140 }
 141
 142 void brw_destroy_pools( struct brw_context *brw )
 143 {
 144    brw_destroy_pool(brw, BRW_GS_POOL);
 145    brw_destroy_pool(brw, BRW_SS_POOL);
 146 }
 147
 148
 149 void brw_invalidate_pools( struct brw_context *brw )
 150 {
 151    brw_invalidate_pool(&brw->intel, &brw->pool[BRW_GS_POOL]);
 152    brw_invalidate_pool(&brw->intel, &brw->pool[BRW_SS_POOL]);
 153 }