/*
- * Copyright (c) 2003 The Regents of The University of Michigan
+ * Copyright (c) 2004 The Regents of The University of Michigan
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
delete disks[i];
}
+////
+// Utility functions
+///
+
+void
+IdeController::parseAddr(const Addr &addr, Addr &offset, bool &primary,
+ RegType_t &type)
+{
+ offset = addr;
+
+ if (addr >= pri_cmd_addr && addr < (pri_cmd_addr + pri_cmd_size)) {
+ offset -= pri_cmd_addr;
+ type = COMMAND_BLOCK;
+ primary = true;
+ } else if (addr >= pri_ctrl_addr &&
+ addr < (pri_ctrl_addr + pri_ctrl_size)) {
+ offset -= pri_ctrl_addr;
+ type = CONTROL_BLOCK;
+ primary = true;
+ } else if (addr >= sec_cmd_addr &&
+ addr < (sec_cmd_addr + sec_cmd_size)) {
+ offset -= sec_cmd_addr;
+ type = COMMAND_BLOCK;
+ primary = false;
+ } else if (addr >= sec_ctrl_addr &&
+ addr < (sec_ctrl_addr + sec_ctrl_size)) {
+ offset -= sec_ctrl_addr;
+ type = CONTROL_BLOCK;
+ primary = false;
+ } else if (addr >= bmi_addr && addr < (bmi_addr + bmi_size)) {
+ offset -= bmi_addr;
+ type = BMI_BLOCK;
+ primary = (offset < BMIC1) ? true : false;
+ } else {
+ panic("IDE controller access to invalid address: %#x\n", addr);
+ }
+}
+
+int
+IdeController::getDisk(bool primary)
+{
+ int disk = 0;
+ uint8_t *devBit = &dev[0];
+
+ if (!primary) {
+ disk += 2;
+ devBit = &dev[1];
+ }
+
+ disk += *devBit;
+
+ assert(*devBit == 0 || *devBit == 1);
+
+ return disk;
+}
+
+int
+IdeController::getDisk(IdeDisk *diskPtr)
+{
+ for (int i = 0; i < 4; i++) {
+ if ((long)diskPtr == (long)disks[i])
+ return i;
+ }
+ return -1;
+}
+
+bool
+IdeController::isDiskSelected(IdeDisk *diskPtr)
+{
+ for (int i = 0; i < 4; i++) {
+ if ((long)diskPtr == (long)disks[i]) {
+ // is disk is on primary or secondary channel
+ int channel = i/2;
+ // is disk the master or slave
+ int devID = i%2;
+
+ return (dev[channel] == devID);
+ }
+ }
+ panic("Unable to find disk by pointer!!\n");
+}
+
////
// Command completion
////
void
IdeController::ReadConfig(int offset, int size, uint8_t *data)
{
+
+#if TRACING_ON
Addr origOffset = offset;
+#endif
if (offset < PCI_DEVICE_SPECIFIC) {
PciDev::ReadConfig(offset, size, data);
memcpy((void *)&pci_regs[offset], (void *)&data, size);
}
- if (offset == PCI_COMMAND) {
- if (config.data[offset] & IOSE)
+ // Catch the writes to specific PCI registers that have side affects
+ // (like updating the PIO ranges)
+ switch (offset) {
+ case PCI_COMMAND:
+ if (config.data[offset] & PCI_CMD_IOSE)
io_enabled = true;
else
io_enabled = false;
- if (config.data[offset] & BME)
+ if (config.data[offset] & PCI_CMD_BME)
bm_enabled = true;
else
bm_enabled = false;
+ break;
- } else if (data != 0xffffffff) {
- switch (offset) {
- case PCI0_BASE_ADDR0:
+ case PCI0_BASE_ADDR0:
+ if (BARAddrs[0] != 0) {
pri_cmd_addr = BARAddrs[0];
if (pioInterface)
pioInterface->addAddrRange(pri_cmd_addr,
pri_cmd_addr + pri_cmd_size - 1);
- pri_cmd_addr = ((pri_cmd_addr | 0xf0000000000) & PA_IMPL_MASK);
- break;
+ pri_cmd_addr &= PA_UNCACHED_MASK;
+ }
+ break;
- case PCI0_BASE_ADDR1:
+ case PCI0_BASE_ADDR1:
+ if (BARAddrs[1] != 0) {
pri_ctrl_addr = BARAddrs[1];
if (pioInterface)
pioInterface->addAddrRange(pri_ctrl_addr,
pri_ctrl_addr + pri_ctrl_size - 1);
- pri_ctrl_addr = ((pri_ctrl_addr | 0xf0000000000) & PA_IMPL_MASK);
- break;
+ pri_ctrl_addr &= PA_UNCACHED_MASK;
+ }
+ break;
- case PCI0_BASE_ADDR2:
+ case PCI0_BASE_ADDR2:
+ if (BARAddrs[2] != 0) {
sec_cmd_addr = BARAddrs[2];
if (pioInterface)
pioInterface->addAddrRange(sec_cmd_addr,
sec_cmd_addr + sec_cmd_size - 1);
- sec_cmd_addr = ((sec_cmd_addr | 0xf0000000000) & PA_IMPL_MASK);
- break;
+ sec_cmd_addr &= PA_UNCACHED_MASK;
+ }
+ break;
- case PCI0_BASE_ADDR3:
+ case PCI0_BASE_ADDR3:
+ if (BARAddrs[3] != 0) {
sec_ctrl_addr = BARAddrs[3];
if (pioInterface)
pioInterface->addAddrRange(sec_ctrl_addr,
sec_ctrl_addr + sec_ctrl_size - 1);
- sec_ctrl_addr = ((sec_ctrl_addr | 0xf0000000000) & PA_IMPL_MASK);
- break;
+ sec_ctrl_addr &= PA_UNCACHED_MASK;
+ }
+ break;
- case PCI0_BASE_ADDR4:
+ case PCI0_BASE_ADDR4:
+ if (BARAddrs[4] != 0) {
bmi_addr = BARAddrs[4];
if (pioInterface)
pioInterface->addAddrRange(bmi_addr, bmi_addr + bmi_size - 1);
- bmi_addr = ((bmi_addr | 0xf0000000000) & PA_IMPL_MASK);
- break;
+ bmi_addr &= PA_UNCACHED_MASK;
}
+ break;
}
}
void
IdeController::serialize(std::ostream &os)
{
+ // Serialize the PciDev base class
+ PciDev::serialize(os);
+
+ // Serialize register addresses and sizes
+ SERIALIZE_SCALAR(pri_cmd_addr);
+ SERIALIZE_SCALAR(pri_cmd_size);
+ SERIALIZE_SCALAR(pri_ctrl_addr);
+ SERIALIZE_SCALAR(pri_ctrl_size);
+ SERIALIZE_SCALAR(sec_cmd_addr);
+ SERIALIZE_SCALAR(sec_cmd_size);
+ SERIALIZE_SCALAR(sec_ctrl_addr);
+ SERIALIZE_SCALAR(sec_ctrl_size);
+ SERIALIZE_SCALAR(bmi_addr);
+ SERIALIZE_SCALAR(bmi_size);
+
+ // Serialize registers
+ SERIALIZE_ARRAY(bmi_regs, 16);
+ SERIALIZE_ARRAY(dev, 2);
+ SERIALIZE_ARRAY(pci_regs, 8);
+
+ // Serialize internal state
+ SERIALIZE_SCALAR(io_enabled);
+ SERIALIZE_SCALAR(bm_enabled);
+ SERIALIZE_ARRAY(cmd_in_progress, 4);
}
void
IdeController::unserialize(Checkpoint *cp, const std::string §ion)
{
+ // Unserialize the PciDev base class
+ PciDev::unserialize(cp, section);
+
+ // Unserialize register addresses and sizes
+ UNSERIALIZE_SCALAR(pri_cmd_addr);
+ UNSERIALIZE_SCALAR(pri_cmd_size);
+ UNSERIALIZE_SCALAR(pri_ctrl_addr);
+ UNSERIALIZE_SCALAR(pri_ctrl_size);
+ UNSERIALIZE_SCALAR(sec_cmd_addr);
+ UNSERIALIZE_SCALAR(sec_cmd_size);
+ UNSERIALIZE_SCALAR(sec_ctrl_addr);
+ UNSERIALIZE_SCALAR(sec_ctrl_size);
+ UNSERIALIZE_SCALAR(bmi_addr);
+ UNSERIALIZE_SCALAR(bmi_size);
+
+ // Unserialize registers
+ UNSERIALIZE_ARRAY(bmi_regs, 16);
+ UNSERIALIZE_ARRAY(dev, 2);
+ UNSERIALIZE_ARRAY(pci_regs, 8);
+
+ // Unserialize internal state
+ UNSERIALIZE_SCALAR(io_enabled);
+ UNSERIALIZE_SCALAR(bm_enabled);
+ UNSERIALIZE_ARRAY(cmd_in_progress, 4);
+
+ if (pioInterface) {
+ pioInterface->addAddrRange(pri_cmd_addr, pri_cmd_addr +
+ pri_cmd_size - 1);
+ pioInterface->addAddrRange(pri_ctrl_addr, pri_ctrl_addr +
+ pri_ctrl_size - 1);
+ pioInterface->addAddrRange(sec_cmd_addr, sec_cmd_addr +
+ sec_cmd_size - 1);
+ pioInterface->addAddrRange(sec_ctrl_addr, sec_ctrl_addr +
+ sec_ctrl_size - 1);
+ pioInterface->addAddrRange(bmi_addr, bmi_addr + bmi_size - 1);
+ }
}
#ifndef DOXYGEN_SHOULD_SKIP_THIS
Param<uint32_t> pci_bus;
Param<uint32_t> pci_dev;
Param<uint32_t> pci_func;
- SimObjectParam<Bus *> host_bus;
+ SimObjectParam<Bus *> io_bus;
SimObjectParam<HierParams *> hier;
END_DECLARE_SIM_OBJECT_PARAMS(IdeController)
INIT_PARAM(pci_bus, "PCI bus ID"),
INIT_PARAM(pci_dev, "PCI device number"),
INIT_PARAM(pci_func, "PCI function code"),
- INIT_PARAM_DFLT(host_bus, "Host bus to attach to", NULL),
+ INIT_PARAM_DFLT(io_bus, "Host bus to attach to", NULL),
INIT_PARAM_DFLT(hier, "Hierarchy global variables", &defaultHierParams)
END_INIT_SIM_OBJECT_PARAMS(IdeController)
{
return new IdeController(getInstanceName(), intr_ctrl, disks, mmu,
configspace, configdata, tsunami, pci_bus,
- pci_dev, pci_func, host_bus, hier);
+ pci_dev, pci_func, io_bus, hier);
}
REGISTER_SIM_OBJECT("IdeController", IdeController)
projects / gem5.git / blobdiff