gem5/dev/pcidev.cc
Gabe Black 10c79efe55 Changed the fault enum into a class, and fixed everything up to work with it. Next, the faults need to be pulled out of all the other code so that they are only used to communicate between the CPU and the ISA.
SConscript:
    The new faults.cc file in sim allocates the system wide faults. When these faults are generated through a function interface in the ISA, this file may go away.
arch/alpha/alpha_memory.cc:
    Changed Fault to Fault * and took the underscores out of fault names.
arch/alpha/alpha_memory.hh:
    Changed Fault to Fault *. Also, added an include for the alpha faults.
arch/alpha/ev5.cc:
    Changed the fault_addr array into a fault_addr function. Once all of the faults can be expected to have the same type, fault_addr can go away completely and the info it provided will come from the fault itself. Also, Fault was changed to Fault *, and underscores were taken out of fault names.
arch/alpha/isa/decoder.isa:
    Changed Fault to Fault * and took the underscores out fault names.
arch/alpha/isa/fp.isa:
    Changed Fault to Fault *, and took the underscores out of fault names.
arch/alpha/isa/main.isa:
    Changed Fault to Fault *, removed underscores from fault names, and made an include of the alpha faults show up in all the generated files.
arch/alpha/isa/mem.isa:
    Changed Fault to Fault * and removed underscores from fault names.
arch/alpha/isa/unimp.isa:
arch/alpha/isa/unknown.isa:
cpu/exec_context.hh:
cpu/ozone/cpu.hh:
cpu/simple/cpu.cc:
dev/alpha_console.cc:
dev/ide_ctrl.cc:
dev/isa_fake.cc:
dev/pciconfigall.cc:
dev/pcidev.cc:
dev/pcidev.hh:
dev/tsunami_cchip.cc:
dev/tsunami_io.cc:
dev/tsunami_pchip.cc:
    Changed Fault to Fault *, and removed underscores from fault names.
arch/alpha/isa_traits.hh:
    Changed the include of arch/alpha/faults.hh to sim/faults.hh, since the alpha faults weren't needed.
cpu/base_dyn_inst.cc:
    Changed Fault to Fault *, and removed underscores from fault names. This file probably shouldn't use the Unimplemented Opcode fault.
cpu/base_dyn_inst.hh:
    Changed Fault to Fault * and took the underscores out of the fault names.
cpu/exec_context.cc:
cpu/o3/alpha_dyn_inst.hh:
cpu/o3/alpha_dyn_inst_impl.hh:
cpu/o3/fetch.hh:
dev/alpha_console.hh:
dev/baddev.hh:
dev/ide_ctrl.hh:
dev/isa_fake.hh:
dev/ns_gige.hh:
dev/pciconfigall.hh:
dev/sinic.hh:
dev/tsunami_cchip.hh:
dev/tsunami_io.hh:
dev/tsunami_pchip.hh:
dev/uart.hh:
dev/uart8250.hh:
    Changed Fault to Fault *.
cpu/o3/alpha_cpu.hh:
    Changed Fault to Fault *, removed underscores from fault names.
cpu/o3/alpha_cpu_impl.hh:
    Changed Fault to Fault *, removed underscores from fault names, and changed the fault_addr array to the fault_addr function. Once all faults are from the ISA, this function will probably go away.
cpu/o3/commit_impl.hh:
cpu/o3/fetch_impl.hh:
dev/baddev.cc:
    Changed Fault to Fault *, and removed underscores from the fault names.
cpu/o3/regfile.hh:
    Added an include for the alpha specific faults which will hopefully go away once the ipr stuff is moved, changed Fault to Fault *, and removed the underscores from fault names.
cpu/simple/cpu.hh:
    Changed Fault to Fault *
dev/ns_gige.cc:
    Changed Fault to Fault *, and removdd underscores from fault names.
dev/sinic.cc:
    Changed Fault to Fault *, and removed the underscores from fault names.
dev/uart8250.cc:
    Chanted Fault to Fault *, and removed underscores from fault names.
kern/kernel_stats.cc:
    Removed underscores from fault names, and from NumFaults.
kern/kernel_stats.hh:
    Changed the predeclaration of Fault from an enum to a class, and changd the "fault" function to work with the classes instead of the enum. Once there are no system wide faults anymore, this code will simplify back to something like it was originally.
sim/faults.cc:
    This allocates the system wide faults.
sim/faults.hh:
    This declares the system wide faults.
sim/syscall_emul.cc:
sim/syscall_emul.hh:
    Removed the underscores from fault names.

--HG--
rename : arch/alpha/faults.cc => sim/faults.cc
rename : arch/alpha/faults.hh => sim/faults.hh
extra : convert_revision : 253d39258237333ae8ec4d8047367cb3ea68569d
2006-02-16 01:22:51 -05:00

428 lines
15 KiB
C++

/*
* Copyright (c) 2004-2005 The Regents of The University of Michigan
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/* @file
* A single PCI device configuration space entry.
*/
#include <list>
#include <sstream>
#include <string>
#include <vector>
#include "base/inifile.hh"
#include "base/misc.hh"
#include "base/str.hh" // for to_number
#include "base/trace.hh"
#include "dev/pcidev.hh"
#include "dev/pciconfigall.hh"
#include "mem/bus/bus.hh"
#include "mem/functional/memory_control.hh"
#include "sim/builder.hh"
#include "sim/param.hh"
#include "sim/root.hh"
#include "dev/tsunamireg.h"
using namespace std;
PciDev::PciDev(Params *p)
: DmaDevice(p->name, p->plat), _params(p), plat(p->plat),
configData(p->configData)
{
// copy the config data from the PciConfigData object
if (configData) {
memcpy(config.data, configData->config.data, sizeof(config.data));
memcpy(BARSize, configData->BARSize, sizeof(BARSize));
memcpy(BARAddrs, configData->BARAddrs, sizeof(BARAddrs));
} else
panic("NULL pointer to configuration data");
// Setup pointer in config space to point to this entry
if (p->configSpace->deviceExists(p->deviceNum, p->functionNum))
panic("Two PCI devices occuping same dev: %#x func: %#x",
p->deviceNum, p->functionNum);
else
p->configSpace->registerDevice(p->deviceNum, p->functionNum, this);
}
Fault *
PciDev::read(MemReqPtr &req, uint8_t *data)
{ return NoFault; }
Fault *
PciDev::write(MemReqPtr &req, const uint8_t *data)
{ return NoFault; }
Fault *
PciDev::readBar0(MemReqPtr &req, Addr daddr, uint8_t *data)
{ panic("not implemented"); }
Fault *
PciDev::readBar1(MemReqPtr &req, Addr daddr, uint8_t *data)
{ panic("not implemented"); }
Fault *
PciDev::readBar2(MemReqPtr &req, Addr daddr, uint8_t *data)
{ panic("not implemented"); }
Fault *
PciDev::readBar3(MemReqPtr &req, Addr daddr, uint8_t *data)
{ panic("not implemented"); }
Fault *
PciDev::readBar4(MemReqPtr &req, Addr daddr, uint8_t *data)
{ panic("not implemented"); }
Fault *
PciDev::readBar5(MemReqPtr &req, Addr daddr, uint8_t *data)
{ panic("not implemented"); }
Fault *
PciDev::writeBar0(MemReqPtr &req, Addr daddr, const uint8_t *data)
{ panic("not implemented"); }
Fault *
PciDev::writeBar1(MemReqPtr &req, Addr daddr, const uint8_t *data)
{ panic("not implemented"); }
Fault *
PciDev::writeBar2(MemReqPtr &req, Addr daddr, const uint8_t *data)
{ panic("not implemented"); }
Fault *
PciDev::writeBar3(MemReqPtr &req, Addr daddr, const uint8_t *data)
{ panic("not implemented"); }
Fault *
PciDev::writeBar4(MemReqPtr &req, Addr daddr, const uint8_t *data)
{ panic("not implemented"); }
Fault *
PciDev::writeBar5(MemReqPtr &req, Addr daddr, const uint8_t *data)
{ panic("not implemented"); }
void
PciDev::readConfig(int offset, int size, uint8_t *data)
{
if (offset >= PCI_DEVICE_SPECIFIC)
panic("Device specific PCI config space not implemented!\n");
switch(size) {
case sizeof(uint8_t):
*data = config.data[offset];
break;
case sizeof(uint16_t):
*(uint16_t*)data = *(uint16_t*)&config.data[offset];
break;
case sizeof(uint32_t):
*(uint32_t*)data = *(uint32_t*)&config.data[offset];
break;
default:
panic("Invalid PCI configuration read size!\n");
}
DPRINTF(PCIDEV,
"read device: %#x function: %#x register: %#x %d bytes: data: %#x\n",
params()->deviceNum, params()->functionNum, offset, size,
*(uint32_t*)data);
}
void
PciDev::writeConfig(int offset, int size, const uint8_t *data)
{
if (offset >= PCI_DEVICE_SPECIFIC)
panic("Device specific PCI config space not implemented!\n");
uint8_t &data8 = *(uint8_t*)data;
uint16_t &data16 = *(uint16_t*)data;
uint32_t &data32 = *(uint32_t*)data;
DPRINTF(PCIDEV,
"write device: %#x function: %#x reg: %#x size: %d data: %#x\n",
params()->deviceNum, params()->functionNum, offset, size, data32);
switch (size) {
case sizeof(uint8_t): // 1-byte access
switch (offset) {
case PCI0_INTERRUPT_LINE:
config.interruptLine = data8;
case PCI_CACHE_LINE_SIZE:
config.cacheLineSize = data8;
case PCI_LATENCY_TIMER:
config.latencyTimer = data8;
break;
/* Do nothing for these read-only registers */
case PCI0_INTERRUPT_PIN:
case PCI0_MINIMUM_GRANT:
case PCI0_MAXIMUM_LATENCY:
case PCI_CLASS_CODE:
case PCI_REVISION_ID:
break;
default:
panic("writing to a read only register");
}
break;
case sizeof(uint16_t): // 2-byte access
switch (offset) {
case PCI_COMMAND:
config.command = data16;
case PCI_STATUS:
config.status = data16;
case PCI_CACHE_LINE_SIZE:
config.cacheLineSize = data16;
break;
default:
panic("writing to a read only register");
}
break;
case sizeof(uint32_t): // 4-byte access
switch (offset) {
case PCI0_BASE_ADDR0:
case PCI0_BASE_ADDR1:
case PCI0_BASE_ADDR2:
case PCI0_BASE_ADDR3:
case PCI0_BASE_ADDR4:
case PCI0_BASE_ADDR5:
uint32_t barnum, bar_mask;
Addr base_addr, base_size, space_base;
barnum = BAR_NUMBER(offset);
if (BAR_IO_SPACE(letoh(config.baseAddr[barnum]))) {
bar_mask = BAR_IO_MASK;
space_base = TSUNAMI_PCI0_IO;
} else {
bar_mask = BAR_MEM_MASK;
space_base = TSUNAMI_PCI0_MEMORY;
}
// Writing 0xffffffff to a BAR tells the card to set the
// value of the bar to size of memory it needs
if (letoh(data32) == 0xffffffff) {
// This is I/O Space, bottom two bits are read only
config.baseAddr[barnum] = letoh(
(~(BARSize[barnum] - 1) & ~bar_mask) |
(letoh(config.baseAddr[barnum]) & bar_mask));
} else {
MemoryController *mmu = params()->mmu;
config.baseAddr[barnum] = letoh(
(letoh(data32) & ~bar_mask) |
(letoh(config.baseAddr[barnum]) & bar_mask));
if (letoh(config.baseAddr[barnum]) & ~bar_mask) {
base_addr = (letoh(data32) & ~bar_mask) + space_base;
base_size = BARSize[barnum];
// It's never been set
if (BARAddrs[barnum] == 0)
mmu->add_child((FunctionalMemory *)this,
RangeSize(base_addr, base_size));
else
mmu->update_child((FunctionalMemory *)this,
RangeSize(BARAddrs[barnum], base_size),
RangeSize(base_addr, base_size));
BARAddrs[barnum] = base_addr;
}
}
break;
case PCI0_ROM_BASE_ADDR:
if (letoh(data32) == 0xfffffffe)
config.expansionROM = htole((uint32_t)0xffffffff);
else
config.expansionROM = data32;
break;
case PCI_COMMAND:
// This could also clear some of the error bits in the Status
// register. However they should never get set, so lets ignore
// it for now
config.command = data16;
break;
default:
DPRINTF(PCIDEV, "Writing to a read only register");
}
break;
default:
panic("invalid access size");
}
}
void
PciDev::serialize(ostream &os)
{
SERIALIZE_ARRAY(BARSize, sizeof(BARSize) / sizeof(BARSize[0]));
SERIALIZE_ARRAY(BARAddrs, sizeof(BARAddrs) / sizeof(BARAddrs[0]));
SERIALIZE_ARRAY(config.data, sizeof(config.data) / sizeof(config.data[0]));
}
void
PciDev::unserialize(Checkpoint *cp, const std::string &section)
{
UNSERIALIZE_ARRAY(BARSize, sizeof(BARSize) / sizeof(BARSize[0]));
UNSERIALIZE_ARRAY(BARAddrs, sizeof(BARAddrs) / sizeof(BARAddrs[0]));
UNSERIALIZE_ARRAY(config.data,
sizeof(config.data) / sizeof(config.data[0]));
// Add the MMU mappings for the BARs
for (int i=0; i < 6; i++) {
if (BARAddrs[i] != 0)
params()->mmu->add_child(this, RangeSize(BARAddrs[i], BARSize[i]));
}
}
#ifndef DOXYGEN_SHOULD_SKIP_THIS
BEGIN_DECLARE_SIM_OBJECT_PARAMS(PciConfigData)
Param<uint16_t> VendorID;
Param<uint16_t> DeviceID;
Param<uint16_t> Command;
Param<uint16_t> Status;
Param<uint8_t> Revision;
Param<uint8_t> ProgIF;
Param<uint8_t> SubClassCode;
Param<uint8_t> ClassCode;
Param<uint8_t> CacheLineSize;
Param<uint8_t> LatencyTimer;
Param<uint8_t> HeaderType;
Param<uint8_t> BIST;
Param<uint32_t> BAR0;
Param<uint32_t> BAR1;
Param<uint32_t> BAR2;
Param<uint32_t> BAR3;
Param<uint32_t> BAR4;
Param<uint32_t> BAR5;
Param<uint32_t> CardbusCIS;
Param<uint16_t> SubsystemVendorID;
Param<uint16_t> SubsystemID;
Param<uint32_t> ExpansionROM;
Param<uint8_t> InterruptLine;
Param<uint8_t> InterruptPin;
Param<uint8_t> MinimumGrant;
Param<uint8_t> MaximumLatency;
Param<uint32_t> BAR0Size;
Param<uint32_t> BAR1Size;
Param<uint32_t> BAR2Size;
Param<uint32_t> BAR3Size;
Param<uint32_t> BAR4Size;
Param<uint32_t> BAR5Size;
END_DECLARE_SIM_OBJECT_PARAMS(PciConfigData)
BEGIN_INIT_SIM_OBJECT_PARAMS(PciConfigData)
INIT_PARAM(VendorID, "Vendor ID"),
INIT_PARAM(DeviceID, "Device ID"),
INIT_PARAM_DFLT(Command, "Command Register", 0x00),
INIT_PARAM_DFLT(Status, "Status Register", 0x00),
INIT_PARAM_DFLT(Revision, "Device Revision", 0x00),
INIT_PARAM_DFLT(ProgIF, "Programming Interface", 0x00),
INIT_PARAM(SubClassCode, "Sub-Class Code"),
INIT_PARAM(ClassCode, "Class Code"),
INIT_PARAM_DFLT(CacheLineSize, "System Cacheline Size", 0x00),
INIT_PARAM_DFLT(LatencyTimer, "PCI Latency Timer", 0x00),
INIT_PARAM_DFLT(HeaderType, "PCI Header Type", 0x00),
INIT_PARAM_DFLT(BIST, "Built In Self Test", 0x00),
INIT_PARAM_DFLT(BAR0, "Base Address Register 0", 0x00),
INIT_PARAM_DFLT(BAR1, "Base Address Register 1", 0x00),
INIT_PARAM_DFLT(BAR2, "Base Address Register 2", 0x00),
INIT_PARAM_DFLT(BAR3, "Base Address Register 3", 0x00),
INIT_PARAM_DFLT(BAR4, "Base Address Register 4", 0x00),
INIT_PARAM_DFLT(BAR5, "Base Address Register 5", 0x00),
INIT_PARAM_DFLT(CardbusCIS, "Cardbus Card Information Structure", 0x00),
INIT_PARAM_DFLT(SubsystemVendorID, "Subsystem Vendor ID", 0x00),
INIT_PARAM_DFLT(SubsystemID, "Subsystem ID", 0x00),
INIT_PARAM_DFLT(ExpansionROM, "Expansion ROM Base Address Register", 0x00),
INIT_PARAM(InterruptLine, "Interrupt Line Register"),
INIT_PARAM(InterruptPin, "Interrupt Pin Register"),
INIT_PARAM_DFLT(MinimumGrant, "Minimum Grant", 0x00),
INIT_PARAM_DFLT(MaximumLatency, "Maximum Latency", 0x00),
INIT_PARAM_DFLT(BAR0Size, "Base Address Register 0 Size", 0x00),
INIT_PARAM_DFLT(BAR1Size, "Base Address Register 1 Size", 0x00),
INIT_PARAM_DFLT(BAR2Size, "Base Address Register 2 Size", 0x00),
INIT_PARAM_DFLT(BAR3Size, "Base Address Register 3 Size", 0x00),
INIT_PARAM_DFLT(BAR4Size, "Base Address Register 4 Size", 0x00),
INIT_PARAM_DFLT(BAR5Size, "Base Address Register 5 Size", 0x00)
END_INIT_SIM_OBJECT_PARAMS(PciConfigData)
CREATE_SIM_OBJECT(PciConfigData)
{
PciConfigData *data = new PciConfigData(getInstanceName());
data->config.vendor = htole(VendorID);
data->config.device = htole(DeviceID);
data->config.command = htole(Command);
data->config.status = htole(Status);
data->config.revision = htole(Revision);
data->config.progIF = htole(ProgIF);
data->config.subClassCode = htole(SubClassCode);
data->config.classCode = htole(ClassCode);
data->config.cacheLineSize = htole(CacheLineSize);
data->config.latencyTimer = htole(LatencyTimer);
data->config.headerType = htole(HeaderType);
data->config.bist = htole(BIST);
data->config.baseAddr0 = htole(BAR0);
data->config.baseAddr1 = htole(BAR1);
data->config.baseAddr2 = htole(BAR2);
data->config.baseAddr3 = htole(BAR3);
data->config.baseAddr4 = htole(BAR4);
data->config.baseAddr5 = htole(BAR5);
data->config.cardbusCIS = htole(CardbusCIS);
data->config.subsystemVendorID = htole(SubsystemVendorID);
data->config.subsystemID = htole(SubsystemVendorID);
data->config.expansionROM = htole(ExpansionROM);
data->config.interruptLine = htole(InterruptLine);
data->config.interruptPin = htole(InterruptPin);
data->config.minimumGrant = htole(MinimumGrant);
data->config.maximumLatency = htole(MaximumLatency);
data->BARSize[0] = BAR0Size;
data->BARSize[1] = BAR1Size;
data->BARSize[2] = BAR2Size;
data->BARSize[3] = BAR3Size;
data->BARSize[4] = BAR4Size;
data->BARSize[5] = BAR5Size;
return data;
}
REGISTER_SIM_OBJECT("PciConfigData", PciConfigData)
#endif // DOXYGEN_SHOULD_SKIP_THIS