/*
* 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.
*
*/
//========== Forward message to root thread through gateway ==========
// Chroma root kenrel updates luma thread limit.
#if defined(_DEBUG)
mov (1) EntrySignatureC:w 0x7788:w
#endif
// Init payload to r0
mov (8) GatewayPayload<1>:ud 0:w { NoDDClr }
// Forward a message:
// Offset = x relative to r50 (defiend in open gataway), x = ORIX >> 4 [bit 28:16]
// Need to shift left 16
mov (1) Offset_Length:ud THREAD_LIMIT_OFFSET:ud { NoDDClr, NoDDChk }
// Length = 1 byte, [bit 10:8 = 000]
//000 xxxxxxxxxxxxx 00000 000 00000000 ==> 000x xxxx xxxx xxxx 0000 0000 0000 0000
//mov (1) DispatchID:ub r0.20:ub // Dispatch ID
// Copy EUid and Thread ID that we received from the PARENT thread
mov (1) EUID_TID:uw r0.6:uw { NoDDClr, NoDDChk }
mov (1) GatewayPayloadKey:uw 0x1212:uw { NoDDChk } // Key
//mov (4) GatewayPayload<1>:ud 0:ud { NoDDClr, NoDDChk } // Init payload low 4 dword
// Write back one byte (value = 0xFF) to root thread GRF to indicate this child thread is finished
// All lower 4 bytes must be assigned to the same byte value.
add (1) Temp1_W:w MaxThreads:uw -OutstandingThreads:uw
mov (4) GatewayPayload<1>:ub Temp1_B<0;1,0>:ub
send (8) GatewayResponse:ud m0 GatewayPayload<8;8,1>:ud MSG_GW FWDMSGDSC
//========== Forward Msg Done ========================================