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       _mesa_printf("%s failed\n", __FUNCTION__);
  51       assert(0);
  52       exit(0);
  53    }
  54
  55    pool->offset += fixup;
  56    *offset_return = pool->offset;
  57    pool->offset += size;
  58
  59    return GL_TRUE;
  60 }
  61
  62 static
  63 void brw_invalidate_pool( struct intel_context *intel,
  64                           struct brw_mem_pool *pool )
  65 {
  66    if (INTEL_DEBUG & DEBUG_STATE)
  67       _mesa_printf("\n\n\n %s \n\n\n", __FUNCTION__);
  68
  69    bmBufferData(intel,
  70                 pool->buffer,
  71                 pool->size,
  72                 NULL,
  73                 0);
  74
  75    pool->offset = 0;
  76
  77    brw_clear_all_caches(pool->brw);
  78 }
  79
  80 static void brw_invalidate_pool_cb( struct intel_context *intel, void *ptr )
  81 {
  82    struct brw_mem_pool *pool = (struct brw_mem_pool *) ptr;
  83
  84    pool->offset = 0;
  85    brw_clear_all_caches(pool->brw);
  86 }
  87
  88
  89
  90 static void brw_init_pool( struct brw_context *brw,
  91                            GLuint pool_id,
  92                            GLuint size )
  93 {
  94    struct brw_mem_pool *pool = &brw->pool[pool_id];
  95
  96    pool->size = size;
  97    pool->brw = brw;
  98
  99    bmGenBuffers(&brw->intel, "pool", 1, &pool->buffer, 12);
 100
 101    /* Also want to say not to wait on fences when data is presented
 102     */
 103    bmBufferSetInvalidateCB(&brw->intel, pool->buffer,
 104                            brw_invalidate_pool_cb,
 105                            pool,
 106                            GL_TRUE);
 107
 108    bmBufferData(&brw->intel,
 109                 pool->buffer,
 110                 pool->size,
 111                 NULL,
 112                 0);
 113
 114 }
 115
 116 static void brw_destroy_pool( struct brw_context *brw,
 117                               GLuint pool_id )
 118 {
 119    struct brw_mem_pool *pool = &brw->pool[pool_id];
 120
 121    bmDeleteBuffers(&brw->intel, 1, &pool->buffer);
 122 }
 123
 124
 125 void brw_pool_check_wrap( struct brw_context *brw,
 126                           struct brw_mem_pool *pool )
 127 {
 128    if (pool->offset > (pool->size * 3) / 4) {
 129       if (brw->intel.aub_file)
 130          brw->intel.aub_wrap = 1;
 131       else
 132          brw->state.dirty.brw |= BRW_NEW_CONTEXT;
 133    }
 134
 135 }
 136
 137 void brw_init_pools( struct brw_context *brw )
 138 {
 139    brw_init_pool(brw, BRW_GS_POOL, 0x80000);
 140    brw_init_pool(brw, BRW_SS_POOL, 0x80000);
 141 }
 142
 143 void brw_destroy_pools( struct brw_context *brw )
 144 {
 145    brw_destroy_pool(brw, BRW_GS_POOL);
 146    brw_destroy_pool(brw, BRW_SS_POOL);
 147 }
 148
 149
 150 void brw_invalidate_pools( struct brw_context *brw )
 151 {
 152    brw_invalidate_pool(&brw->intel, &brw->pool[BRW_GS_POOL]);
 153    brw_invalidate_pool(&brw->intel, &brw->pool[BRW_SS_POOL]);
 154 }