1/* 2 * Copyright (c) 2004-2005 The Regents of The University of Michigan 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer; --- 22 unchanged lines hidden (view full) --- 31/** @file 32 * Isa Fake Device implementation 33 */ 34 35#include "base/trace.hh" 36#include "dev/isa_fake.hh" 37#include "mem/packet.hh" 38#include "mem/packet_access.hh" |
39#include "sim/system.hh" 40 41using namespace std; 42 43IsaFake::IsaFake(Params *p) 44 : BasicPioDevice(p) 45{ |
46 if (!p->ret_bad_addr) |
47 pioSize = p->pio_size; 48 |
49 retData8 = p->ret_data8; 50 retData16 = p->ret_data16; 51 retData32 = p->ret_data32; 52 retData64 = p->ret_data64; |
53} 54 55Tick 56IsaFake::read(PacketPtr pkt) 57{ 58 assert(pkt->result == Packet::Unknown); 59 |
60 if (params()->warn_access != "") |
61 warn("Device %s accessed by read to address %#x size=%d\n", 62 name(), pkt->getAddr(), pkt->getSize()); |
63 if (params()->ret_bad_addr) { |
64 DPRINTF(Tsunami, "read to bad address va=%#x size=%d\n", 65 pkt->getAddr(), pkt->getSize()); 66 pkt->result = Packet::BadAddress; 67 } else { 68 assert(pkt->getAddr() >= pioAddr && pkt->getAddr() < pioAddr + pioSize); 69 DPRINTF(Tsunami, "read va=%#x size=%d\n", 70 pkt->getAddr(), pkt->getSize()); 71 switch (pkt->getSize()) { --- 15 unchanged lines hidden (view full) --- 87 pkt->result = Packet::Success; 88 } 89 return pioDelay; 90} 91 92Tick 93IsaFake::write(PacketPtr pkt) 94{ |
95 if (params()->warn_access != "") { |
96 uint64_t data; 97 switch (pkt->getSize()) { 98 case sizeof(uint64_t): 99 data = pkt->get<uint64_t>(); 100 break; 101 case sizeof(uint32_t): 102 data = pkt->get<uint32_t>(); 103 break; --- 4 unchanged lines hidden (view full) --- 108 data = pkt->get<uint8_t>(); 109 break; 110 default: 111 panic("invalid access size!\n"); 112 } 113 warn("Device %s accessed by write to address %#x size=%d data=%#x\n", 114 name(), pkt->getAddr(), pkt->getSize(), data); 115 } |
116 if (params()->ret_bad_addr) { |
117 DPRINTF(Tsunami, "write to bad address va=%#x size=%d \n", 118 pkt->getAddr(), pkt->getSize()); 119 pkt->result = Packet::BadAddress; 120 } else { 121 DPRINTF(Tsunami, "write - va=%#x size=%d \n", 122 pkt->getAddr(), pkt->getSize()); 123 |
124 if (params()->update_data) { |
125 switch (pkt->getSize()) { 126 case sizeof(uint64_t): 127 retData64 = pkt->get<uint64_t>(); 128 break; 129 case sizeof(uint32_t): 130 retData32 = pkt->get<uint32_t>(); 131 break; 132 case sizeof(uint16_t): --- 6 unchanged lines hidden (view full) --- 139 panic("invalid access size!\n"); 140 } 141 } 142 pkt->result = Packet::Success; 143 } 144 return pioDelay; 145} 146 |
147IsaFake * 148IsaFakeParams::create() |
149{ |
150 return new IsaFake(this); |
151} |