/*
* Copyright © <2010>, Intel Corporation.
*
* This program is licensed under the terms and conditions of the
* Eclipse Public License (EPL), version 1.0. The full text of the EPL is at
* http://www.opensource.org/licenses/eclipse-1.0.php.
*
*/
//----- Open a Message Gateway -----
// The parent thread is the recipient thread
#if defined(_DEBUG)
mov (1) EntrySignature:w 0x1111:w
#endif
mov (8) GatewayPayload<1>:ud r0.0<8;8,1>:ud // Init payload to r0
// r50- (16 GRFs) are the GRFs child thread can wtite to.
// Reg base is at bit 28:21, Gateway size is at [bit 10:8]
// r6: 6 = 00000110
//000 00000110 0000000000 100 00000000 ==> 0000 0000 1100 0000 0000 0100 0000 0000
mov (1) RegBase_GatewaySize:ud 0x00C00400:ud // Reg base + Gateway size (16 GRFs)
//000 00110010 0000000000 100 00000000 ==> 0000 0110 0100 0000 0000 0100 0000 0000
//mov (1) RegBase_GatewaySize:ud 0x06400400:ud // Reg base (r50 = 0x640 byte offset) + Gateway size (16 GRFs)
//mov (1) DispatchID:ub r0.20:ub // Dispatch ID
mov (1) GatewayPayloadKey:uw 0x1212:uw // Key=0x1212
// Message descriptor
// bit 31 EOD
// 27:24 FFID = 0x0011 for msg gateway
// 23:20 msg length = 1 MRF
// 19:16 Response length = 0
// 14 AckReg = 1
// 1:0 SubFuncID = 00 for OpenGateway
// Message descriptor: 0 000 0011 0001 0000 + 0 1 000000000000 00 ==> 0000 0011 0001 0000 0100 0000 0000 0000
// Send message to gateway: the ack message is put into response GRF r49 ==> Good for debugging
send (8) GatewayResponse:ud m7 GatewayPayload<8;8,1>:ud MSG_GW OGWMSGDSC
//----- End of Open a Message Gateway -----