/*
* Scoreboard function for starting intra prediction kernels
* Copyright © <2010>, Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* This file was originally licensed under the following license
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#if !defined(__SCOREBOARD_START_INTRA__)
#define __SCOREBOARD_START_INTRA__
//
// Module name: scoreboard_start_intra.asm
//
// Scoreboard function for starting intra prediction kernels
// This function is only used by intra prediction kernels to send message to
// scoreboard in order to check dependency clearance
//
// $Revision: 5 $
// $Date: 10/18/06 4:11p $
//
scoreboard_start_intra:
// First open message gateway since intra kernels need wake-up message to resume
//
mov (8) MSGHDRY0<1>:ud 0x00000000:ud // Initialize message header payload with 0
// Send a message with register base RegBase = r0 (0x0) and Size = 0x0
// 000 00000000 00000 00000 000 00000000 ==> 0000 0000 0000 0000 0000 0000 0000 0000
// ---------------------------------------------------------------------------------
and (1) MSGHDRY0.8<1>:uw REG_INTRA_PRED_AVAIL_FLAG_BYTE<0;1,0>:ub 0x1f:uw // Set lower word of key
send (8) NULLREG MSGHDRY0 null:ud MSG_GW OGWMSGDSC
// Send "check dependency" message to scoreboard thread
// --------------------------
// Derive the scoreboard location where the intra thread writes to
//
mov (8) MSGHDRY1<1>:ud 0x00000000:ud // Initialize message header payload with 0
// Compose M0.5:ud
#include "set_SB_offset.asm"
// Compose M0.0:ud, i.e. message payload
and (1) MSGHDRY1.0<1>:uw REG_INTRA_PRED_AVAIL_FLAG_BYTE<0;1,0>:ub 0x1f:uw // Set lower word of message
or (1) MSGHDRY1.1<1>:uw sr0.0<0;1,0>:uw 0x8000:uw // Set EUID/TID bits + intra start bit
send (8) NULLREG MSGHDRY1 null:ud MSG_GW FWDMSGDSC+NOTIFYMSG // Send "Intra start" message to scoreboard kernel
RETURN
#endif // !defined(__SCOREBOARD_START_INTRA__)