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  1. /*
  2.  * Copyright © <2010>, Intel Corporation.
  3.  *
  4.  * Permission is hereby granted, free of charge, to any person obtaining a
  5.  * copy of this software and associated documentation files (the
  6.  * "Software"), to deal in the Software without restriction, including
  7.  * without limitation the rights to use, copy, modify, merge, publish,
  8.  * distribute, sub license, and/or sell copies of the Software, and to
  9.  * permit persons to whom the Software is furnished to do so, subject to
  10.  * the following conditions:
  11.  *
  12.  * The above copyright notice and this permission notice (including the
  13.  * next paragraph) shall be included in all copies or substantial portions
  14.  * of the Software.
  15.  *
  16.  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  17.  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  18.  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  19.  * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
  20.  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  21.  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  22.  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23.  *
  24.  * This file was originally licensed under the following license
  25.  *
  26.  *  Licensed under the Apache License, Version 2.0 (the "License");
  27.  *  you may not use this file except in compliance with the License.
  28.  *  You may obtain a copy of the License at
  29.  *
  30.  *      http://www.apache.org/licenses/LICENSE-2.0
  31.  *
  32.  *  Unless required by applicable law or agreed to in writing, software
  33.  *  distributed under the License is distributed on an "AS IS" BASIS,
  34.  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  35.  *  See the License for the specific language governing permissions and
  36.  *  limitations under the License.
  37.  *
  38.  */
  39. // Module name: load_ILDB_Cntrl_Data_16DW.asm
  40. //
  41. // This module loads AVC ILDB 64DW control data for one MB CTG.
  42. // Dataport expands from 16DW to 64DW.
  43. //
  44. //----------------------------------------------------------------
  45. //  Symbols need to be defined before including this module
  46. //
  47. //      Source region in :ud
  48. //      CNTRL_DATA_D:   CNTRL_DATA_D Base=rxx ElementSize=4 SrcRegion=REGION(8,1) Type=ud                       // 8 GRFs
  49. //
  50. //      Binding table index:
  51. //      BI_CNTRL_DATA:  Binding table index of control data surface
  52. //
  53. //----------------------------------------------------------------
  54.  
  55. // On CTG, MB control data in memory occupy 16 DWs. Data port returns 8 GRFs with expanded control data.
  56.  
  57. #if defined(_MBAFF)
  58.         // We need to get control data offset for the bottom MB in mbaff mode.
  59.         // That is, get f0.1=1 if MbaffFlag==1 && BotFieldFlag==1
  60. //      and (1) CTemp1_W:uw             BitFields:uw    MbaffFlag+BotFieldFlag:uw       // Mute all other bits
  61. //      cmp.e.f0.1 (1) NULLREGW         CTemp1_W:uw     MbaffFlag+BotFieldFlag:uw       // Check mbaff and bot flags
  62.                
  63.         and.ne.f0.1 (1) NULLREGW        BitFields:uw    BotFieldFlag:uw
  64.  
  65.         // Global offset
  66.         mov (1) MSGSRC.2:ud             CntrlDataOffsetY:ud
  67.                
  68.         (f0.1) add (1) MSGSRC.2:ud              MSGSRC.2:ud             64:w    // +64 to the next MB control data (bot MB)
  69. #endif
  70.  
  71.     send (8) CNTRL_DATA_D(0)<1> MSGHDRY MSGSRC<8;8,1>:ud        DAPREAD RESP_LEN(8)+ILDBRMSGDSC+BI_CNTRL_DATA   // Receive 8 GRFs
  72.  
  73. // End of load_ILDB_Cntrl_Data_16DW.asm
  74.  
  75.  
  76.  
  77. // AVC ILDB control data message header format
  78.  
  79. //DWord Bit     Description
  80. //M0.7  31:0    Debug
  81. //M0.6  31:0    Debug
  82. //M0.5  31:8    Ignored
  83. //              7:0             Dispatch ID. // This ID is assigned by the fixed function unit and is a unique identifier for the thread.  It is used to free up resources used by the thread upon thread completion.
  84. //M0.4  31:0    Ignored
  85. //M0.3  31:0    Ignored
  86. //M0.2  31:0    Global Offset. Specifies the global byte offset into the buffer.
  87.                                 //      This offset must be OWord aligned (bits 3:0 MBZ) Format = U32 Range = [0,FFFFFFF0h]
  88. //M0.1  31:0    Ignored
  89. //M0.0  31:0    Ignored
  90.  
  91.  
  92.  
  93.