// ========== Copyright Header Begin ==========================================
// OpenSPARC T2 Processor File: tl_consumer.cpp
// Copyright (C) 1995-2007 Sun Microsystems, Inc. All Rights Reserved
// 4150 Network Circle, Santa Clara, California 95054, U.S.A.
// * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; version 2 of the License.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
// For the avoidance of doubt, and except that if any non-GPL license
// choice is available it will apply instead, Sun elects to use only
// the General Public License version 2 (GPLv2) at this time for any
// software where a choice of GPL license versions is made
// available with the language indicating that GPLv2 or any later version
// may be used, or where a choice of which version of the GPL is applied is
// otherwise unspecified.
// Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
// CA 95054 USA or visit www.sun.com if you need additional information or
// ========== Copyright Header End ============================================
#ifndef DLL_tl_consumer_h
#define DLL_tl_consumer_h
/** This function processes packets from TL **/
void dll_top::tl_consumer()
LOG_DEBUG
<<"DLL: tl_consumer begins...";
RefPciePacket receive_packet
;
if ( ltssm_L0s
) // || replay_buffer_size <= 0 )
// Cease accepting TLPs from TL until the equation is not satisfied
// Receive packet from TL
tl_dll_in
.get_packet(receive_packet
);
LOG_DEBUG
<< " _DLL_: Received packet from TL with PktId= " << receive_packet
->getPacketId() << " Size= " << receive_packet
->get_size();
//cout << sc_time_stamp() << "\t\t\t\t\t| DLL: Received TLP " << receive_packet->getPacketId() << " from ETL." << endl;
// Apply NEXT_TRANSMIT_SEQ to TLP
prepend_byte0
.range(7,4) = 0;
prepend_byte0
.range(3,0) = NEXT_TRANSMIT_SEQ
.range(11,8);
prepend_byte1
= NEXT_TRANSMIT_SEQ
.range(7,0);
receive_packet
->modify_byte(1,prepend_byte0
);
receive_packet
->modify_byte(2,prepend_byte1
);
lcrc_mapped
=calculate_lcrc(receive_packet
,1,receive_packet
->get_size() - 4);
packet_size
=receive_packet
->get_size();
if(receive_packet
->get_control() != 0x12){
receive_packet
->set_control(0xa);
receive_packet
->modify_byte(packet_size
-4,lcrc_mapped
.range(31,24));
receive_packet
->modify_byte(packet_size
-3,lcrc_mapped
.range(23,16));
receive_packet
->modify_byte(packet_size
-2,lcrc_mapped
.range(15,8));
receive_packet
->modify_byte(packet_size
-1,lcrc_mapped
.range(7,0));
LOG_DEBUG
<< "NULLifying PACKET";
receive_packet
->modify_byte(packet_size
-4,~lcrc_mapped
.range(31,24));
receive_packet
->modify_byte(packet_size
-3,~lcrc_mapped
.range(23,16));
receive_packet
->modify_byte(packet_size
-2,~lcrc_mapped
.range(15,8));
receive_packet
->modify_byte(packet_size
-1,~lcrc_mapped
.range(7,0));
queue_TLP
.push(receive_packet
);
if ( Flag_FC1
&& !Flag_FC2
&&
(receive_packet
->get_byte(0) == STP
) )
LOG_DEBUG
<< "_DLL_:FI1 and FI2 flags are set! ";
LOG_DEBUG
<<"DLL: Out of tl_consumer";
/** This function polls LTSSM state **/
void dll_top::ltssm_state_check()
LOG_DEBUG
<<"DLL: ltssm_state_check begins...";
WAIT(csr_core_status_ev
);
ltssm_state_reg
= csr_port
.read_csr(PEU_CSR_A_CORE_STATUS_HW_ADDR
);
if ( ltssm_state_reg
.range(48,44) == 17 ) // ILUPEU_LTSSM_L0S
LOG_DEBUG
<<"DLL: Out of ltss_state_check";