[8] | 1 | /* SOCLIB_LGPL_HEADER_BEGIN |
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| 2 | * |
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| 3 | * This file is part of SoCLib, GNU LGPLv2.1. |
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| 4 | * |
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| 5 | * SoCLib is free software; you can redistribute it and/or modify it |
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| 6 | * under the terms of the GNU Lesser General Public License as published |
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| 7 | * by the Free Software Foundation; version 2.1 of the License. |
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| 8 | * |
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| 9 | * SoCLib is distributed in the hope that it will be useful, but |
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| 10 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 12 | * Lesser General Public License for more details. |
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| 13 | * |
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| 14 | * You should have received a copy of the GNU Lesser General Public |
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| 15 | * License along with SoCLib; if not, write to the Free Software |
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| 16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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| 17 | * 02110-1301 USA |
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| 18 | * |
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| 19 | * SOCLIB_LGPL_HEADER_END |
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| 20 | * |
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| 21 | * Author : Abdelmalek SI MERABET |
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| 22 | * Date : March 2010 |
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| 23 | * Copyright: UPMC - LIP6 |
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| 24 | */ |
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[10] | 25 | /////////////////////////////////////////////////////////////////////////////////// |
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| 26 | // Ring : Read Command Packet Format : 2 flits // |
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| 27 | //--------------------------------------------------------------------------------- |
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| 28 | // 1st flit | eop | address* = (X,Y)(10) + OFFSET(28) |0| |
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| 29 | // (40) (1) (38) (1) |
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| 30 | //--------------------------------------------------------------------------------- |
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| 31 | // 2nd flit | eop | res | srcid | cmd | contig |const | plen | pktid | trdid | |
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| 32 | // (39) (1) 5 (14) (2) (1) (1) (8) (4) (4) |
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| 33 | /////////////////////////////////////////////////////////////////////////////////// |
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| 34 | // Ring : Write Command Packet Format : 2 + N flits // |
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| 35 | //--------------------------------------------------------------------------------- |
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| 36 | // 1st flit | eop | address |0| |
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| 37 | // (40) (1) (38) (1) |
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| 38 | //--------------------------------------------------------------------------------- |
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| 39 | // 2nd flit | eop | res | srcid | cmd | contig |const | plen | pktid | trdid | |
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| 40 | // (40) (1) 3 (14) (2) (1) (1) (8) (4) (4) |
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| 41 | //--------------------------------------------------------------------------------- |
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| 42 | // next flits | eop |res| be | wdata | |
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| 43 | // (40) (1) (3) (4) (32) |
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| 44 | /////////////////////////////////////////////////////////////////////////////////// |
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| 45 | // Ring : Read & write Response Packet Format : 1 + N flits // |
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| 46 | //----------------------------------------------------------------- |
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| 47 | // 1st flit | eop | res | rsrcid | rerror | rpktid | rtrdid | |
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| 48 | // (33) (1) 6 (14) (4) (4) (4) |
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| 49 | //----------------------------------------------------------------- |
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| 50 | // next flits | eop | data | |
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| 51 | // (33) (1) (32) |
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| 52 | ///////////////////////////////////////////////////////////////////////////////////// |
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| 53 | // Ring : Broadcast : 2 flits // |
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| 54 | //----------------------------------------------------------------------------------- |
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| 55 | // 1st flit | eop | res | srcid | trdid |xmin |xmax |ymin |ymax |1| |
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| 56 | // (40) (1) 4 (14) (4) (4) (4) (4) (4) (1) |
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| 57 | //----------------------------------------------------------------------------------- |
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| 58 | // confinement broadcast : pour 16 clusters |
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| 59 | // xmin = 0, xmax = F, ymin = 0, ymax = F d'où conf = 0x0F0F |
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| 60 | //----------------------------------------------------------------------------------- |
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| 61 | // next flits | eop |res| be | wdata | |
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| 62 | // (40) (1) (3) (4) (32) |
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| 63 | // next flit | eop | res | nline | |
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| 64 | // (40) (1) (5) (34) |
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| 65 | ///////////////////////////////////////////////////////////////////////////////////// |
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| 66 | |
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[8] | 67 | #include "vci_target.h" |
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| 68 | #include "generic_fifo.h" |
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| 69 | #include "mapping_table.h" |
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| 70 | #include "ring_signals_2.h" |
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| 71 | #include <systemc.h> |
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| 72 | |
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[15] | 73 | //#define I_DEBUG |
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| 74 | //#define IR_DEBUG |
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[8] | 75 | //#define I_DEBUG_FSM |
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| 76 | |
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| 77 | namespace soclib { namespace caba { |
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| 78 | |
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| 79 | using namespace sc_core; |
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| 80 | |
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| 81 | #ifdef I_DEBUG_FSM |
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| 82 | namespace { |
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| 83 | const char *vci_cmd_fsm_state_str_i[] = { |
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| 84 | "CMD_FIRST_HEADER", |
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| 85 | "CMD_SECOND_HEADER", |
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| 86 | "WDATA", |
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| 87 | }; |
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| 88 | const char *vci_rsp_fsm_state_str_i[] = { |
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| 89 | "RSP_HEADER", |
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| 90 | "RSP_DATA", |
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| 91 | }; |
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| 92 | const char *ring_cmd_fsm_state_str_i[] = { |
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| 93 | "CMD_IDLE", |
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| 94 | "DEFAULT", |
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| 95 | "KEEP", |
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| 96 | }; |
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| 97 | const char *ring_rsp_fsm_state_str_i[] = { |
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| 98 | "RSP_IDLE", |
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| 99 | "LOCAL", |
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| 100 | "RING", |
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| 101 | }; |
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| 102 | } |
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| 103 | #endif |
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| 104 | |
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| 105 | template<typename vci_param, int ring_cmd_data_size, int ring_rsp_data_size> |
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| 106 | class VciRingInitiator |
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| 107 | { |
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| 108 | |
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| 109 | typedef soclib::caba::VciTarget<vci_param> vci_target_t; |
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| 110 | typedef RingSignals2 ring_signal_t; |
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| 111 | |
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| 112 | private: |
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| 113 | enum vci_cmd_fsm_state_e { |
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| 114 | CMD_FIRST_HEADER, // first flit for a ring cmd packet (read or write) |
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| 115 | CMD_SECOND_HEADER, // second flit for a ring cmd packet |
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| 116 | WDATA, // data flit for a ring cmd write packet |
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| 117 | }; |
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| 118 | |
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| 119 | enum vci_rsp_fsm_state_e { |
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| 120 | RSP_HEADER, // first flit for a ring rsp packet (read or write) |
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| 121 | RSP_DATA, // next flit for a ring rsp packet |
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| 122 | |
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| 123 | }; |
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| 124 | |
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| 125 | enum ring_rsp_fsm_state_e { |
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| 126 | RSP_IDLE, // waiting for first flit of a response packet |
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| 127 | LOCAL, // next flit of a local rsp packet |
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| 128 | RING, // next flit of a ring rsp packet |
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| 129 | }; |
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| 130 | |
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| 131 | // cmd token allocation fsm |
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| 132 | enum ring_cmd_fsm_state_e { |
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| 133 | CMD_IDLE, |
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| 134 | DEFAULT, |
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| 135 | KEEP, |
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| 136 | }; |
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| 137 | |
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| 138 | // structural parameters |
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| 139 | bool m_alloc_init; |
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| 140 | uint32_t m_srcid; |
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| 141 | std::string m_name; |
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| 142 | |
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| 143 | // internal registers |
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| 144 | sc_signal<int> r_ring_cmd_fsm; // ring command packet FSM (distributed) |
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| 145 | sc_signal<int> r_ring_rsp_fsm; // ring response packet FSM |
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| 146 | sc_signal<int> r_vci_cmd_fsm; // vci command packet FSM |
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| 147 | sc_signal<int> r_vci_rsp_fsm; // vci response packet FSM |
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| 148 | |
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| 149 | sc_signal<bool> r_read_ack; // vci ack if vci cmd read |
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| 150 | |
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| 151 | sc_signal<sc_uint<vci_param::S> > r_srcid_save; |
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| 152 | sc_signal<sc_uint<vci_param::T> > r_trdid_save; |
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| 153 | sc_signal<sc_uint<vci_param::P> > r_pktid_save; |
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| 154 | sc_signal<sc_uint<vci_param::E> > r_error_save; |
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| 155 | |
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| 156 | // internal fifos |
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| 157 | GenericFifo<uint64_t > m_cmd_fifo; // fifo for the local command packet |
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| 158 | GenericFifo<uint64_t > m_rsp_fifo; // fifo for the local response packet |
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| 159 | |
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| 160 | // routing table |
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| 161 | soclib::common::AddressMaskingTable<uint32_t> m_rt; |
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| 162 | soclib::common::AddressDecodingTable<uint32_t, bool> m_lt; |
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| 163 | |
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| 164 | bool trace(int sc_time_stamp) |
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| 165 | { |
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| 166 | int time_stamp=0; |
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| 167 | char *ctime_stamp= getenv("FROM_CYCLE"); |
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| 168 | |
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| 169 | if (ctime_stamp) time_stamp=atoi(ctime_stamp); |
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| 170 | |
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| 171 | return sc_time_stamp >= time_stamp; |
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| 172 | |
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| 173 | } |
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| 174 | |
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| 175 | public : |
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| 176 | |
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| 177 | VciRingInitiator( |
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| 178 | const char *name, |
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| 179 | bool alloc_init, |
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| 180 | const int &wrapper_fifo_depth, |
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| 181 | const soclib::common::MappingTable &mt, |
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| 182 | const soclib::common::IntTab &ringid, |
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| 183 | const uint32_t &srcid) |
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| 184 | : m_name(name), |
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| 185 | m_alloc_init(alloc_init), |
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| 186 | m_cmd_fifo("m_cmd_fifo", wrapper_fifo_depth), |
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| 187 | m_rsp_fifo("m_rsp_fifo", wrapper_fifo_depth), |
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| 188 | m_rt(mt.getIdMaskingTable(ringid.level())), |
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| 189 | m_lt(mt.getIdLocalityTable(ringid)), |
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| 190 | m_srcid(srcid), |
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| 191 | r_ring_cmd_fsm("r_ring_cmd_fsm"), |
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| 192 | r_ring_rsp_fsm("r_ring_rsp_fsm"), |
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| 193 | r_vci_cmd_fsm("r_vci_cmd_fsm"), |
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| 194 | r_vci_rsp_fsm("r_vci_rsp_fsm") |
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| 195 | |
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| 196 | {} // end constructor |
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| 197 | |
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| 198 | void reset() |
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| 199 | { |
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| 200 | if(m_alloc_init) |
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| 201 | r_ring_cmd_fsm = DEFAULT; |
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| 202 | else |
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| 203 | r_ring_cmd_fsm = CMD_IDLE; |
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| 204 | |
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| 205 | r_vci_cmd_fsm = CMD_FIRST_HEADER; |
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| 206 | r_vci_rsp_fsm = RSP_HEADER; |
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| 207 | r_ring_rsp_fsm = RSP_IDLE; |
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| 208 | m_cmd_fifo.init(); |
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| 209 | m_rsp_fifo.init(); |
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| 210 | } |
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| 211 | |
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| 212 | void transition(const vci_target_t &p_vci, const ring_signal_t p_ring_in) |
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| 213 | { |
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| 214 | |
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| 215 | bool cmd_fifo_get = false; |
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| 216 | bool cmd_fifo_put = false; |
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| 217 | uint64_t cmd_fifo_data = 0; |
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| 218 | |
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| 219 | bool rsp_fifo_get = false; |
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| 220 | bool rsp_fifo_put = false; |
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| 221 | uint64_t rsp_fifo_data = 0; |
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| 222 | |
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| 223 | #ifdef I_DEBUG_FSM |
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[15] | 224 | if( trace(sc_time_stamp())) |
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| 225 | std::cout << sc_time_stamp() << " - " << m_name |
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| 226 | << " - vci cmd = " << vci_cmd_fsm_state_str_i[r_vci_cmd_fsm] |
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| 227 | << " - vci rsp = " << vci_rsp_fsm_state_str_i[r_vci_rsp_fsm] |
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| 228 | << " - ring cmd = " << ring_cmd_fsm_state_str_i[r_ring_cmd_fsm] |
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| 229 | << " - ring rsp = " << ring_rsp_fsm_state_str_i[r_ring_rsp_fsm] |
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| 230 | << std::endl; |
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[8] | 231 | #endif |
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| 232 | //////////// VCI CMD FSM ///////////////////////// |
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| 233 | switch ( r_vci_cmd_fsm ) |
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| 234 | { |
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| 235 | case CMD_FIRST_HEADER: |
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| 236 | if ( p_vci.cmdval.read() ) |
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| 237 | { |
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| 238 | #ifdef I_DEBUG |
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| 239 | if( trace(sc_time_stamp())) |
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| 240 | std::cout << sc_time_stamp() << " -- " << m_name |
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| 241 | << " -- r_vci_cmd_fsm -- CMD_FIRST_HEADER " |
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| 242 | << " -- vci_cmdval : " << p_vci.cmdval.read() |
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| 243 | << " -- vci_address : " << std::hex << p_vci.address.read() |
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| 244 | << " -- vci_srcid : " << p_vci.srcid.read() |
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| 245 | << " -- fifo_wok : " << m_cmd_fifo.wok() |
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| 246 | << std::endl; |
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| 247 | #endif |
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| 248 | cmd_fifo_data = (uint64_t) ((p_vci.address.read() >> 2) << 1); |
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| 249 | r_read_ack = p_vci.eop.read() |
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| 250 | && ((p_vci.cmd.read() == vci_param::CMD_READ) |
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| 251 | || (p_vci.cmd.read() == vci_param::CMD_LOCKED_READ)); |
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| 252 | |
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| 253 | if(m_cmd_fifo.wok()) |
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| 254 | { |
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| 255 | cmd_fifo_put = true; |
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| 256 | |
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| 257 | // test sur broadcast |
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| 258 | if ((p_vci.address.read() & 0x3) == 0x3) |
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| 259 | { |
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[15] | 260 | |
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[8] | 261 | cmd_fifo_data = cmd_fifo_data | ((uint64_t) 0x1) | |
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[15] | 262 | (((uint64_t) 0x5) << 1) | |
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| 263 | (((uint64_t) p_vci.srcid.read()) << 20) | |
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| 264 | (((uint64_t) (p_vci.trdid.read() & 0xF)) << 16); |
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[8] | 265 | |
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| 266 | r_vci_cmd_fsm = WDATA; |
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| 267 | |
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| 268 | } |
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| 269 | else |
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| 270 | { |
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| 271 | r_vci_cmd_fsm = CMD_SECOND_HEADER; |
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| 272 | |
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| 273 | } |
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| 274 | } // end fifo wok |
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| 275 | |
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| 276 | |
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| 277 | } // end if cmdval |
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| 278 | break; |
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| 279 | |
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| 280 | case CMD_SECOND_HEADER: |
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| 281 | |
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| 282 | #ifdef I_DEBUG |
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| 283 | if( trace(sc_time_stamp())) |
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| 284 | std::cout << sc_time_stamp() << " -- " << m_name |
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| 285 | << " -- r_vci_cmd_fsm -- CMD_SECOND_HEADER " |
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| 286 | << " -- vci_cmdval : " << p_vci.cmdval.read() |
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| 287 | << " -- fifo_wok : " << m_cmd_fifo.wok() |
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| 288 | << " -- vci_cmd : " << std::hex << p_vci.cmd.read() |
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| 289 | << " -- vci_plen : " << p_vci.plen.read() |
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| 290 | << std::endl; |
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| 291 | #endif |
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[15] | 292 | if ( p_vci.cmdval.read() && m_cmd_fifo.wok() ) |
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| 293 | { |
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| 294 | |
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[8] | 295 | cmd_fifo_put = true; |
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| 296 | cmd_fifo_data = (((uint64_t) p_vci.srcid.read()) << 20)| |
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| 297 | (((uint64_t) (p_vci.cmd.read() & 0x3)) << 18) | |
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| 298 | (((uint64_t) (p_vci.plen.read() & 0xFF)) << 8) | |
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| 299 | (((uint64_t) (p_vci.pktid.read() & 0xF)) << 4) | |
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| 300 | (uint64_t) (p_vci.trdid.read() & 0xF); |
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| 301 | if (p_vci.contig == true) |
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| 302 | cmd_fifo_data = cmd_fifo_data | ((uint64_t) 0x1) << 17; |
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| 303 | if (p_vci.cons == true) |
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| 304 | cmd_fifo_data = cmd_fifo_data | ((uint64_t) 0x1) << 16; |
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| 305 | if(r_read_ack) |
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| 306 | { |
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| 307 | cmd_fifo_data = cmd_fifo_data | (((uint64_t) 0x1) << (ring_cmd_data_size-1)); //39 |
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| 308 | r_vci_cmd_fsm = CMD_FIRST_HEADER; |
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| 309 | } |
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| 310 | else // write command |
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| 311 | { |
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| 312 | r_vci_cmd_fsm = WDATA; |
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| 313 | } |
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| 314 | } // endif cmdval |
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| 315 | break; |
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| 316 | |
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| 317 | case WDATA: |
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| 318 | |
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[15] | 319 | #ifdef I_DEBUG |
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[8] | 320 | if( trace(sc_time_stamp())) |
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| 321 | std::cout << sc_time_stamp() << " -- " << m_name |
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| 322 | << " -- r_vci_cmd_fsm -- WDATA " |
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| 323 | << " -- vci_cmdval : " << p_vci.cmdval.read() |
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| 324 | << " -- fifo_wok : " << m_cmd_fifo.wok() |
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| 325 | << " -- vci_wdata : " << std::hex << p_vci.wdata.read() |
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| 326 | << " -- vci_be : " << p_vci.be.read() |
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| 327 | << " -- vci_eop : " << p_vci.eop.read() |
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| 328 | << std::endl; |
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[15] | 329 | #endif |
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| 330 | if ( p_vci.cmdval.read() && m_cmd_fifo.wok() ) |
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| 331 | { |
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[8] | 332 | |
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| 333 | |
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[15] | 334 | |
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[8] | 335 | cmd_fifo_put = true; |
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| 336 | cmd_fifo_data = ((uint64_t) p_vci.wdata.read()) | (((uint64_t) p_vci.be.read()) << 32); |
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| 337 | if ( p_vci.eop.read() == true ) |
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| 338 | { |
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| 339 | r_vci_cmd_fsm = CMD_FIRST_HEADER; |
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| 340 | cmd_fifo_data = cmd_fifo_data | (((uint64_t) 0x1) << (ring_cmd_data_size-1)); //39 |
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| 341 | } |
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| 342 | else |
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| 343 | r_vci_cmd_fsm = WDATA; |
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| 344 | } // end if cmdval |
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| 345 | break; |
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| 346 | |
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| 347 | } // end switch r_vci_cmd_fsm |
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| 348 | |
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| 349 | /////////// VCI RSP FSM ///////////////////////// |
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| 350 | switch ( r_vci_rsp_fsm ) |
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| 351 | { |
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| 352 | case RSP_HEADER: |
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| 353 | |
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| 354 | if ( m_rsp_fifo.rok() ) |
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| 355 | { |
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| 356 | |
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| 357 | #ifdef I_DEBUG |
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| 358 | if( trace(sc_time_stamp())) |
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| 359 | std::cout << sc_time_stamp() << " -- " << m_name |
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| 360 | << " -- r_vci_rsp_fsm -- RSP_HEADER " |
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| 361 | << " -- fifo_rsp_rok : " << m_rsp_fifo.rok() |
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| 362 | << std::endl; |
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| 363 | #endif |
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| 364 | rsp_fifo_get = true; |
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[34] | 365 | r_srcid_save = (sc_uint<vci_param::S>) (m_rsp_fifo.read() >> 12); |
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| 366 | r_trdid_save = (sc_uint<vci_param::T>) (m_rsp_fifo.read() & 0xF); |
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| 367 | r_pktid_save = ((sc_uint<vci_param::P>) (m_rsp_fifo.read() >> 4)) & 0xF; |
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| 368 | r_error_save = ((sc_uint<vci_param::E>) (m_rsp_fifo.read() >> 8)) & 0x1; |
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[8] | 369 | r_vci_rsp_fsm = RSP_DATA; |
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| 370 | } |
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| 371 | break; |
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| 372 | |
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| 373 | case RSP_DATA: |
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| 374 | #ifdef I_DEBUG |
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| 375 | if( trace(sc_time_stamp())) |
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[15] | 376 | std::cout << sc_time_stamp() << " -- " << m_name |
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[8] | 377 | << " -- r_vci_rsp_fsm -- RSP_DATA " |
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[15] | 378 | << " -- fifo rok : " << m_rsp_fifo.rok() |
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| 379 | << " -- rspack : " << p_vci.rspack.read() |
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[8] | 380 | << " -- rsrcid : " << std::hex << r_srcid_save.read() |
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| 381 | << " -- rdata : " << m_rsp_fifo.read() |
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| 382 | << " -- rerror : " << r_error_save.read() |
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| 383 | << std::endl; |
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| 384 | #endif |
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[15] | 385 | if ( p_vci.rspack.read() && m_rsp_fifo.rok() ) |
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| 386 | { |
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| 387 | |
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[8] | 388 | rsp_fifo_get = true; |
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| 389 | if(((m_rsp_fifo.read() >> 32) & 0x1) == 0x1) |
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| 390 | r_vci_rsp_fsm = RSP_HEADER; |
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| 391 | } // endif rspack && rok |
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| 392 | break; |
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| 393 | |
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| 394 | } // end switch r_vci_rsp_fsm |
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| 395 | |
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| 396 | //////////// RING CMD FSM ///////////////////////// |
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| 397 | switch( r_ring_cmd_fsm ) |
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| 398 | { |
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| 399 | case CMD_IDLE: |
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| 400 | #ifdef IR_DEBUG |
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| 401 | if( trace(sc_time_stamp())) |
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| 402 | std::cout << sc_time_stamp() << " -- " << m_name << " -- r_ring_cmd_fsm : CMD_IDLE " |
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| 403 | << " -- fifo ROK : " << m_cmd_fifo.rok() |
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| 404 | << " -- in grant : " << p_ring_in.cmd_grant |
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| 405 | << " -- fifo _data : " << std::hex << m_cmd_fifo.read() |
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| 406 | << std::endl; |
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| 407 | |
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| 408 | #endif |
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| 409 | |
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| 410 | if ( p_ring_in.cmd_grant && m_cmd_fifo.rok() ) |
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| 411 | { |
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| 412 | // debug above is here |
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| 413 | r_ring_cmd_fsm = KEEP; |
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| 414 | } |
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| 415 | break; |
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| 416 | |
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| 417 | case DEFAULT: |
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| 418 | #ifdef IR_DEBUG |
---|
| 419 | if( trace(sc_time_stamp())) |
---|
| 420 | std::cout << sc_time_stamp() << " -- " << m_name << " -- r_ring_cmd_fsm : DEFAULT " |
---|
| 421 | << " -- fifo ROK : " << m_cmd_fifo.rok() |
---|
| 422 | << " -- in grant : " << p_ring_in.cmd_grant |
---|
| 423 | << " -- fifo _data : " << std::hex << m_cmd_fifo.read() |
---|
| 424 | << std::endl; |
---|
| 425 | |
---|
| 426 | #endif |
---|
| 427 | |
---|
| 428 | |
---|
| 429 | if ( m_cmd_fifo.rok() ) |
---|
| 430 | { |
---|
| 431 | // debug above is here |
---|
| 432 | cmd_fifo_get = p_ring_in.cmd_r; |
---|
| 433 | r_ring_cmd_fsm = KEEP; |
---|
| 434 | } |
---|
| 435 | else if ( !p_ring_in.cmd_grant ) |
---|
| 436 | r_ring_cmd_fsm = CMD_IDLE; |
---|
| 437 | break; |
---|
| 438 | |
---|
| 439 | case KEEP: |
---|
| 440 | #ifdef IR_DEBUG |
---|
| 441 | if( trace(sc_time_stamp())) |
---|
| 442 | std::cout << sc_time_stamp() << " -- " << m_name |
---|
| 443 | << " -- r_ring_cmd_fsm : KEEP " |
---|
| 444 | << " -- fifo_rok : " << m_cmd_fifo.rok() |
---|
| 445 | << " -- in grant : " << p_ring_in.cmd_grant |
---|
| 446 | << " -- ring_in_wok : " << p_ring_in.cmd_r |
---|
| 447 | << " -- fifo_out_data : " << std::hex << m_cmd_fifo.read() |
---|
| 448 | << std::endl; |
---|
| 449 | #endif |
---|
| 450 | |
---|
| 451 | if(m_cmd_fifo.rok() && p_ring_in.cmd_r ) |
---|
| 452 | { |
---|
| 453 | // debug above is here |
---|
| 454 | cmd_fifo_get = true; |
---|
| 455 | if (((int) (m_cmd_fifo.read() >> (ring_cmd_data_size - 1) ) & 0x1) == 1) // 39 |
---|
| 456 | { |
---|
| 457 | if ( p_ring_in.cmd_grant ) |
---|
| 458 | r_ring_cmd_fsm = DEFAULT; |
---|
| 459 | else |
---|
| 460 | r_ring_cmd_fsm = CMD_IDLE; |
---|
| 461 | } |
---|
| 462 | } |
---|
| 463 | break; |
---|
| 464 | |
---|
| 465 | } // end switch ring cmd fsm |
---|
| 466 | |
---|
| 467 | /////////// RING RSP FSM //////////////////////// |
---|
| 468 | |
---|
| 469 | switch( r_ring_rsp_fsm ) |
---|
| 470 | { |
---|
| 471 | case RSP_IDLE: |
---|
| 472 | { |
---|
| 473 | int rsrcid = (int) ((p_ring_in.rsp_data >> 12) & 0x3FFF); |
---|
| 474 | bool islocal = m_lt[rsrcid] && (m_rt[rsrcid] == m_srcid); |
---|
| 475 | bool reop = ((p_ring_in.rsp_data >> (ring_rsp_data_size - 1)) & 0x1) == 1; |
---|
| 476 | #ifdef IR_DEBUG |
---|
| 477 | if( trace(sc_time_stamp())) |
---|
| 478 | std::cout << sc_time_stamp() << " -- " << m_name |
---|
| 479 | << " -- ring_rsp_fsm -- RSP_IDLE " |
---|
| 480 | << " -- islocal : " << islocal |
---|
| 481 | << " -- eop : " << reop |
---|
| 482 | << " -- rsrcid : " << std::hex << rsrcid |
---|
| 483 | << " -- in rok : " << p_ring_in.rsp_w |
---|
| 484 | << " -- in wok : " << p_ring_in.rsp_r |
---|
| 485 | << " -- fifo wok : " << m_rsp_fifo.wok() |
---|
| 486 | << std::endl; |
---|
| 487 | #endif |
---|
| 488 | if (p_ring_in.rsp_w && !reop && islocal) |
---|
| 489 | { |
---|
| 490 | r_ring_rsp_fsm = LOCAL; |
---|
| 491 | rsp_fifo_put = m_rsp_fifo.wok(); |
---|
| 492 | rsp_fifo_data = p_ring_in.rsp_data; |
---|
| 493 | } |
---|
| 494 | if (p_ring_in.rsp_w && !reop && !islocal) |
---|
| 495 | { |
---|
| 496 | r_ring_rsp_fsm = RING; |
---|
| 497 | } |
---|
| 498 | if (!p_ring_in.rsp_w || reop ) |
---|
| 499 | { |
---|
| 500 | r_ring_rsp_fsm = RSP_IDLE; |
---|
| 501 | } |
---|
| 502 | } |
---|
| 503 | break; |
---|
| 504 | |
---|
| 505 | case LOCAL: |
---|
| 506 | { |
---|
| 507 | bool reop = ((p_ring_in.rsp_data >> (ring_rsp_data_size - 1)) & 0x1) == 1; |
---|
| 508 | |
---|
| 509 | #ifdef IR_DEBUG |
---|
| 510 | if( trace(sc_time_stamp())) |
---|
| 511 | std::cout << sc_time_stamp() << " -- " << m_name |
---|
| 512 | << " -- ring_rsp_fsm -- LOCAL " |
---|
| 513 | << " -- in rok : " << p_ring_in.rsp_w |
---|
| 514 | << " -- fifo wok : " << m_rsp_fifo.wok() |
---|
| 515 | << " -- in data : " << std::hex << p_ring_in.rsp_data |
---|
| 516 | << " -- eop : " << reop |
---|
| 517 | << std::endl; |
---|
| 518 | #endif |
---|
| 519 | |
---|
| 520 | |
---|
| 521 | if (p_ring_in.rsp_w && m_rsp_fifo.wok() && reop) |
---|
| 522 | { |
---|
| 523 | |
---|
| 524 | rsp_fifo_put = true; |
---|
| 525 | rsp_fifo_data = p_ring_in.rsp_data; |
---|
| 526 | r_ring_rsp_fsm = RSP_IDLE; |
---|
| 527 | } |
---|
| 528 | if (!p_ring_in.rsp_w || !m_rsp_fifo.wok() || !reop) |
---|
| 529 | { |
---|
| 530 | |
---|
| 531 | rsp_fifo_put = p_ring_in.rsp_w && m_rsp_fifo.wok(); |
---|
| 532 | rsp_fifo_data = p_ring_in.rsp_data; |
---|
| 533 | r_ring_rsp_fsm = LOCAL; |
---|
| 534 | } |
---|
| 535 | } |
---|
| 536 | break; |
---|
| 537 | |
---|
| 538 | case RING: |
---|
| 539 | { |
---|
| 540 | bool reop = ((p_ring_in.rsp_data >> (ring_rsp_data_size - 1)) & 0x1) == 1; |
---|
| 541 | |
---|
| 542 | #ifdef IR_DEBUG |
---|
| 543 | if( trace(sc_time_stamp())) |
---|
| 544 | std::cout << sc_time_stamp() << " -- " << m_name |
---|
| 545 | << " -- ring_rsp_fsm -- RING " |
---|
| 546 | << " -- in rok : " << p_ring_in.rsp_w |
---|
| 547 | << " -- in wok : " << p_ring_in.rsp_r |
---|
| 548 | << " -- in data : " << std::hex << p_ring_in.rsp_data |
---|
| 549 | << " -- eop : " << reop |
---|
| 550 | << std::endl; |
---|
| 551 | #endif |
---|
| 552 | |
---|
| 553 | |
---|
| 554 | if (p_ring_in.rsp_w && reop) |
---|
| 555 | { |
---|
| 556 | r_ring_rsp_fsm = RSP_IDLE; |
---|
| 557 | } |
---|
| 558 | else |
---|
| 559 | { |
---|
| 560 | r_ring_rsp_fsm = RING; |
---|
| 561 | } |
---|
| 562 | } |
---|
| 563 | break; |
---|
| 564 | |
---|
| 565 | } // end switch rsp fsm |
---|
| 566 | |
---|
| 567 | //////////////////////// |
---|
| 568 | // fifos update // |
---|
| 569 | //////////////////////// |
---|
| 570 | |
---|
| 571 | // local cmd fifo update |
---|
| 572 | if ( cmd_fifo_put && cmd_fifo_get ) m_cmd_fifo.put_and_get(cmd_fifo_data); |
---|
| 573 | else if ( cmd_fifo_put && !cmd_fifo_get ) m_cmd_fifo.simple_put(cmd_fifo_data); |
---|
| 574 | else if ( !cmd_fifo_put && cmd_fifo_get ) m_cmd_fifo.simple_get(); |
---|
| 575 | |
---|
| 576 | // local rsp fifo update |
---|
| 577 | if ( rsp_fifo_put && rsp_fifo_get ) m_rsp_fifo.put_and_get(rsp_fifo_data); |
---|
| 578 | else if ( rsp_fifo_put && !rsp_fifo_get ) m_rsp_fifo.simple_put(rsp_fifo_data); |
---|
| 579 | else if ( !rsp_fifo_put && rsp_fifo_get ) m_rsp_fifo.simple_get(); |
---|
| 580 | |
---|
| 581 | } // end Transition() |
---|
| 582 | |
---|
| 583 | /////////////////////////////////////////////////////////////////// |
---|
| 584 | void genMoore(vci_target_t &p_vci) |
---|
| 585 | /////////////////////////////////////////////////////////////////// |
---|
| 586 | { |
---|
| 587 | |
---|
| 588 | switch ( r_vci_cmd_fsm ) |
---|
| 589 | { |
---|
| 590 | case CMD_FIRST_HEADER: |
---|
| 591 | p_vci.cmdack = false; |
---|
| 592 | break; |
---|
| 593 | |
---|
| 594 | case CMD_SECOND_HEADER: |
---|
| 595 | p_vci.cmdack = r_read_ack; |
---|
| 596 | break; |
---|
| 597 | |
---|
| 598 | case WDATA: |
---|
| 599 | p_vci.cmdack = m_cmd_fifo.wok(); |
---|
| 600 | break; |
---|
| 601 | |
---|
| 602 | } // end switch fsm |
---|
| 603 | |
---|
| 604 | switch ( r_vci_rsp_fsm ) |
---|
| 605 | { |
---|
| 606 | case RSP_HEADER: |
---|
| 607 | p_vci.rspval = false; |
---|
| 608 | break; |
---|
| 609 | |
---|
| 610 | case RSP_DATA: |
---|
| 611 | p_vci.rspval = m_rsp_fifo.rok(); |
---|
| 612 | p_vci.rsrcid = r_srcid_save; |
---|
| 613 | p_vci.rtrdid = r_trdid_save; |
---|
| 614 | p_vci.rpktid = r_pktid_save; |
---|
| 615 | p_vci.rerror = r_error_save; |
---|
| 616 | p_vci.rdata = (sc_uint<32>) (m_rsp_fifo.read()); |
---|
| 617 | if (((m_rsp_fifo.read() >> 32) & 0x1) == 0x1) |
---|
| 618 | p_vci.reop = true; |
---|
| 619 | else |
---|
| 620 | p_vci.reop = false; |
---|
| 621 | break; |
---|
| 622 | |
---|
| 623 | } // end switch fsm |
---|
| 624 | } // end genMoore |
---|
| 625 | |
---|
| 626 | /////////////////////////////////////////////////////////////////// |
---|
| 627 | void update_ring_signals(ring_signal_t p_ring_in, ring_signal_t &p_ring_out) |
---|
| 628 | /////////////////////////////////////////////////////////////////// |
---|
| 629 | { |
---|
| 630 | switch( r_ring_cmd_fsm ) |
---|
| 631 | { |
---|
| 632 | case CMD_IDLE: |
---|
| 633 | p_ring_out.cmd_grant = p_ring_in.cmd_grant && !m_cmd_fifo.rok(); |
---|
| 634 | |
---|
| 635 | p_ring_out.cmd_r = p_ring_in.cmd_r; |
---|
| 636 | |
---|
| 637 | p_ring_out.cmd_w = p_ring_in.cmd_w; |
---|
| 638 | p_ring_out.cmd_data = p_ring_in.cmd_data; |
---|
| 639 | break; |
---|
| 640 | |
---|
| 641 | case DEFAULT: |
---|
| 642 | p_ring_out.cmd_grant = !( m_cmd_fifo.rok()); |
---|
| 643 | |
---|
| 644 | p_ring_out.cmd_r = 1; |
---|
| 645 | |
---|
| 646 | p_ring_out.cmd_w = m_cmd_fifo.rok(); |
---|
| 647 | p_ring_out.cmd_data = m_cmd_fifo.read(); |
---|
| 648 | break; |
---|
| 649 | |
---|
| 650 | case KEEP: |
---|
| 651 | int cmd_fifo_eop = (int) ((m_cmd_fifo.read() >> (ring_cmd_data_size - 1)) & 0x1) ; //39 |
---|
| 652 | p_ring_out.cmd_grant = m_cmd_fifo.rok() && p_ring_in.cmd_r && (cmd_fifo_eop == 1); |
---|
| 653 | |
---|
| 654 | p_ring_out.cmd_r = 1; |
---|
| 655 | |
---|
| 656 | p_ring_out.cmd_w = m_cmd_fifo.rok(); |
---|
| 657 | p_ring_out.cmd_data = m_cmd_fifo.read(); |
---|
| 658 | break; |
---|
| 659 | |
---|
| 660 | } // end switch |
---|
| 661 | |
---|
| 662 | p_ring_out.rsp_grant = p_ring_in.rsp_grant; |
---|
| 663 | |
---|
| 664 | p_ring_out.rsp_w = p_ring_in.rsp_w; |
---|
| 665 | p_ring_out.rsp_data = p_ring_in.rsp_data; |
---|
| 666 | |
---|
| 667 | switch( r_ring_rsp_fsm ) |
---|
| 668 | { |
---|
| 669 | case RSP_IDLE: |
---|
| 670 | { |
---|
| 671 | int rsrcid = (int) ((p_ring_in.rsp_data >> 12 ) & 0x3FFF); |
---|
| 672 | bool islocal = m_lt[rsrcid] && (m_rt[rsrcid] == m_srcid); |
---|
| 673 | bool reop = ((p_ring_in.rsp_data >> (ring_rsp_data_size - 1)) & 0x1) == 1; |
---|
| 674 | |
---|
| 675 | if(p_ring_in.rsp_w && !reop && islocal) { |
---|
| 676 | p_ring_out.rsp_r = m_rsp_fifo.wok(); |
---|
| 677 | } |
---|
| 678 | if(p_ring_in.rsp_w && !reop && !islocal) { |
---|
| 679 | p_ring_out.rsp_r = p_ring_in.rsp_r; |
---|
| 680 | } |
---|
| 681 | if(!p_ring_in.rsp_w || reop) { |
---|
| 682 | p_ring_out.rsp_r = p_ring_in.rsp_r; |
---|
| 683 | } |
---|
| 684 | |
---|
| 685 | } |
---|
| 686 | break; |
---|
| 687 | |
---|
| 688 | case LOCAL: |
---|
| 689 | p_ring_out.rsp_r = m_rsp_fifo.wok(); |
---|
| 690 | break; |
---|
| 691 | |
---|
| 692 | case RING: |
---|
| 693 | p_ring_out.rsp_r = p_ring_in.rsp_r; |
---|
| 694 | break; |
---|
| 695 | } // end switch |
---|
| 696 | |
---|
| 697 | |
---|
| 698 | } // end update_ring_signals |
---|
| 699 | |
---|
| 700 | }; |
---|
| 701 | |
---|
| 702 | }} // end namespace |
---|
| 703 | |
---|
| 704 | |
---|