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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 5361 | serge | 1 | /* |
| 2 | * Copyright © <2010>, Intel Corporation. |
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| 3 | * |
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| 4 | * This program is licensed under the terms and conditions of the |
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| 5 | * Eclipse Public License (EPL), version 1.0. The full text of the EPL is at |
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| 6 | * http://www.opensource.org/licenses/eclipse-1.0.php. |
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| 7 | * |
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| 8 | */ |
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| 9 | // Module name: load_ILDB_Cntrl_Data_16DW.asm |
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| 10 | // |
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| 11 | // This module loads AVC ILDB 64DW control data for one MB CTG. |
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| 12 | // Dataport expands from 16DW to 64DW. |
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| 13 | // |
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| 14 | //---------------------------------------------------------------- |
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| 15 | // Symbols need to be defined before including this module |
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| 16 | // |
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| 17 | // Source region in :ud |
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| 18 | // CNTRL_DATA_D: CNTRL_DATA_D Base=rxx ElementSize=4 SrcRegion=REGION(8,1) Type=ud // 8 GRFs |
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| 19 | // |
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| 20 | // Binding table index: |
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| 21 | // BI_CNTRL_DATA: Binding table index of control data surface |
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| 22 | // |
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| 23 | //---------------------------------------------------------------- |
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| 24 | |||
| 25 | // On CTG, MB control data in memory occupy 16 DWs. Data port returns 8 GRFs with expanded control data. |
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| 26 | |||
| 27 | #if defined(_MBAFF) |
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| 28 | // We need to get control data offset for the bottom MB in mbaff mode. |
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| 29 | // That is, get f0.1=1 if MbaffFlag==1 && BotFieldFlag==1 |
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| 30 | // and (1) CTemp1_W:uw BitFields:uw MbaffFlag+BotFieldFlag:uw // Mute all other bits |
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| 31 | // cmp.e.f0.1 (1) NULLREGW CTemp1_W:uw MbaffFlag+BotFieldFlag:uw // Check mbaff and bot flags |
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| 32 | |||
| 33 | and.ne.f0.1 (1) NULLREGW BitFields:uw BotFieldFlag:uw |
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| 34 | |||
| 35 | // Global offset |
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| 36 | mov (1) MSGSRC.2:ud CntrlDataOffsetY:ud |
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| 37 | |||
| 38 | (f0.1) add (1) MSGSRC.2:ud MSGSRC.2:ud 64:w // +64 to the next MB control data (bot MB) |
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| 39 | #endif |
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| 40 | |||
| 41 | send (8) CNTRL_DATA_D(0)<1> MSGHDRY MSGSRC<8;8,1>:ud DAPREAD RESP_LEN(8)+ILDBRMSGDSC+BI_CNTRL_DATA // Receive 8 GRFs |
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| 42 | |||
| 43 | // End of load_ILDB_Cntrl_Data_16DW.asm |
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| 44 | |||
| 45 | |||
| 46 | |||
| 47 | // AVC ILDB control data message header format |
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| 48 | |||
| 49 | //DWord Bit Description |
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| 50 | //M0.7 31:0 Debug |
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| 51 | //M0.6 31:0 Debug |
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| 52 | //M0.5 31:8 Ignored |
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| 53 | // 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. |
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| 54 | //M0.4 31:0 Ignored |
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| 55 | //M0.3 31:0 Ignored |
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| 56 | //M0.2 31:0 Global Offset. Specifies the global byte offset into the buffer. |
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| 57 | // This offset must be OWord aligned (bits 3:0 MBZ) Format = U32 Range = [0,FFFFFFF0h] |
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| 58 | //M0.1 31:0 Ignored |
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| 59 | //M0.0 31:0 Ignored |
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| 60 |