c761aaae65
objects. The improper serialization of arrays was particularly
bad.
dev/alpha_console.cc:
dev/isa_fake.cc:
dev/ns_gige.cc:
dev/pciconfigall.cc:
dev/tsunami_cchip.cc:
dev/tsunami_io.cc:
dev/tsunami_pchip.cc:
the pio interface is a different simobject and should have a
different name.
dev/ethertap.cc:
fix serialization.
dev/ide_ctrl.cc:
- the pio interface is a different simobject and should have a
different name.
- properly initialize variables
- When serializing an array, the size is the number of elements,
not the number of bytes!
dev/pcidev.cc:
When serializing an array, the size is the number of elements,
not the number of bytes!
dev/tsunami_io.hh:
Don't make objects SimObjects if they're not exposed to python.
Don't add serialization functions to events, it's generally not
what you want.
allow the real time clock and interval timer to serialize themselves,
must pass a base name since it is not a SimObject and the values will
be going into the section of the parent.
--HG--
extra : convert_revision : 3fc5de9b858ed770c8f385cf38b53242cf859c33
371 lines
13 KiB
C++
371 lines
13 KiB
C++
/*
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* Copyright (c) 2004-2005 The Regents of The University of Michigan
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/* @file
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* A single PCI device configuration space entry.
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*/
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#include <list>
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#include <sstream>
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#include <string>
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#include <vector>
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#include "base/inifile.hh"
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#include "base/misc.hh"
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#include "base/str.hh" // for to_number
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#include "base/trace.hh"
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#include "dev/pcidev.hh"
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#include "dev/pciconfigall.hh"
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#include "mem/bus/bus.hh"
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#include "mem/functional/memory_control.hh"
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#include "sim/builder.hh"
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#include "sim/param.hh"
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#include "sim/root.hh"
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#include "dev/tsunamireg.h"
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using namespace std;
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PciDev::PciDev(Params *p)
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: DmaDevice(p->name, p->plat), _params(p), plat(p->plat),
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configData(p->configData)
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{
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// copy the config data from the PciConfigData object
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if (configData) {
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memcpy(config.data, configData->config.data, sizeof(config.data));
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memcpy(BARSize, configData->BARSize, sizeof(BARSize));
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memcpy(BARAddrs, configData->BARAddrs, sizeof(BARAddrs));
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} else
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panic("NULL pointer to configuration data");
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// Setup pointer in config space to point to this entry
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if (p->configSpace->deviceExists(p->deviceNum, p->functionNum))
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panic("Two PCI devices occuping same dev: %#x func: %#x",
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p->deviceNum, p->functionNum);
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else
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p->configSpace->registerDevice(p->deviceNum, p->functionNum, this);
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}
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void
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PciDev::readConfig(int offset, int size, uint8_t *data)
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{
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if (offset >= PCI_DEVICE_SPECIFIC)
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panic("Device specific PCI config space not implemented!\n");
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switch(size) {
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case sizeof(uint8_t):
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*data = config.data[offset];
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break;
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case sizeof(uint16_t):
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*(uint16_t*)data = *(uint16_t*)&config.data[offset];
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break;
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case sizeof(uint32_t):
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*(uint32_t*)data = *(uint32_t*)&config.data[offset];
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break;
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default:
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panic("Invalid PCI configuration read size!\n");
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}
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DPRINTF(PCIDEV,
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"read device: %#x function: %#x register: %#x %d bytes: data: %#x\n",
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params()->deviceNum, params()->functionNum, offset, size,
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*(uint32_t*)data);
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}
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void
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PciDev::writeConfig(int offset, int size, const uint8_t *data)
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{
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if (offset >= PCI_DEVICE_SPECIFIC)
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panic("Device specific PCI config space not implemented!\n");
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uint8_t &data8 = *(uint8_t*)data;
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uint16_t &data16 = *(uint16_t*)data;
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uint32_t &data32 = *(uint32_t*)data;
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DPRINTF(PCIDEV,
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"write device: %#x function: %#x reg: %#x size: %d data: %#x\n",
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params()->deviceNum, params()->functionNum, offset, size, data32);
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switch (size) {
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case sizeof(uint8_t): // 1-byte access
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switch (offset) {
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case PCI0_INTERRUPT_LINE:
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config.interruptLine = data8;
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case PCI_CACHE_LINE_SIZE:
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config.cacheLineSize = data8;
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case PCI_LATENCY_TIMER:
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config.latencyTimer = data8;
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break;
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/* Do nothing for these read-only registers */
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case PCI0_INTERRUPT_PIN:
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case PCI0_MINIMUM_GRANT:
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case PCI0_MAXIMUM_LATENCY:
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case PCI_CLASS_CODE:
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case PCI_REVISION_ID:
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break;
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default:
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panic("writing to a read only register");
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}
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break;
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case sizeof(uint16_t): // 2-byte access
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switch (offset) {
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case PCI_COMMAND:
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config.command = data16;
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case PCI_STATUS:
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config.status = data16;
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case PCI_CACHE_LINE_SIZE:
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config.cacheLineSize = data16;
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break;
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default:
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panic("writing to a read only register");
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}
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break;
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case sizeof(uint32_t): // 4-byte access
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switch (offset) {
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case PCI0_BASE_ADDR0:
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case PCI0_BASE_ADDR1:
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case PCI0_BASE_ADDR2:
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case PCI0_BASE_ADDR3:
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case PCI0_BASE_ADDR4:
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case PCI0_BASE_ADDR5:
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uint32_t barnum, bar_mask;
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Addr base_addr, base_size, space_base;
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barnum = BAR_NUMBER(offset);
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if (BAR_IO_SPACE(letoh(config.baseAddr[barnum]))) {
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bar_mask = BAR_IO_MASK;
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space_base = TSUNAMI_PCI0_IO;
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} else {
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bar_mask = BAR_MEM_MASK;
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space_base = TSUNAMI_PCI0_MEMORY;
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}
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// Writing 0xffffffff to a BAR tells the card to set the
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// value of the bar to size of memory it needs
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if (letoh(data32) == 0xffffffff) {
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// This is I/O Space, bottom two bits are read only
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config.baseAddr[barnum] = letoh(
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(~(BARSize[barnum] - 1) & ~bar_mask) |
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(letoh(config.baseAddr[barnum]) & bar_mask));
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} else {
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MemoryController *mmu = params()->mmu;
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config.baseAddr[barnum] = letoh(
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(letoh(data32) & ~bar_mask) |
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(letoh(config.baseAddr[barnum]) & bar_mask));
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if (letoh(config.baseAddr[barnum]) & ~bar_mask) {
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base_addr = (letoh(data32) & ~bar_mask) + space_base;
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base_size = BARSize[barnum];
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// It's never been set
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if (BARAddrs[barnum] == 0)
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mmu->add_child((FunctionalMemory *)this,
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RangeSize(base_addr, base_size));
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else
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mmu->update_child((FunctionalMemory *)this,
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RangeSize(BARAddrs[barnum], base_size),
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RangeSize(base_addr, base_size));
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BARAddrs[barnum] = base_addr;
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}
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}
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break;
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case PCI0_ROM_BASE_ADDR:
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if (letoh(data32) == 0xfffffffe)
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config.expansionROM = htole((uint32_t)0xffffffff);
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else
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config.expansionROM = data32;
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break;
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case PCI_COMMAND:
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// This could also clear some of the error bits in the Status
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// register. However they should never get set, so lets ignore
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// it for now
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config.command = data16;
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break;
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default:
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DPRINTF(PCIDEV, "Writing to a read only register");
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}
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break;
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default:
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panic("invalid access size");
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}
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}
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void
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PciDev::serialize(ostream &os)
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{
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SERIALIZE_ARRAY(BARSize, sizeof(BARSize) / sizeof(BARSize[0]));
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SERIALIZE_ARRAY(BARAddrs, sizeof(BARAddrs) / sizeof(BARAddrs[0]));
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SERIALIZE_ARRAY(config.data, sizeof(config.data) / sizeof(config.data[0]));
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}
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void
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PciDev::unserialize(Checkpoint *cp, const std::string §ion)
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{
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UNSERIALIZE_ARRAY(BARSize, sizeof(BARSize) / sizeof(BARSize[0]));
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UNSERIALIZE_ARRAY(BARAddrs, sizeof(BARAddrs) / sizeof(BARAddrs[0]));
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UNSERIALIZE_ARRAY(config.data,
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sizeof(config.data) / sizeof(config.data[0]));
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// Add the MMU mappings for the BARs
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for (int i=0; i < 6; i++) {
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if (BARAddrs[i] != 0)
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params()->mmu->add_child(this, RangeSize(BARAddrs[i], BARSize[i]));
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}
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}
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#ifndef DOXYGEN_SHOULD_SKIP_THIS
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BEGIN_DECLARE_SIM_OBJECT_PARAMS(PciConfigData)
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Param<uint16_t> VendorID;
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Param<uint16_t> DeviceID;
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Param<uint16_t> Command;
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Param<uint16_t> Status;
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Param<uint8_t> Revision;
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Param<uint8_t> ProgIF;
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Param<uint8_t> SubClassCode;
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Param<uint8_t> ClassCode;
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Param<uint8_t> CacheLineSize;
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Param<uint8_t> LatencyTimer;
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Param<uint8_t> HeaderType;
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Param<uint8_t> BIST;
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Param<uint32_t> BAR0;
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Param<uint32_t> BAR1;
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Param<uint32_t> BAR2;
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Param<uint32_t> BAR3;
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Param<uint32_t> BAR4;
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Param<uint32_t> BAR5;
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Param<uint32_t> CardbusCIS;
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Param<uint16_t> SubsystemVendorID;
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Param<uint16_t> SubsystemID;
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Param<uint32_t> ExpansionROM;
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Param<uint8_t> InterruptLine;
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Param<uint8_t> InterruptPin;
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Param<uint8_t> MinimumGrant;
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Param<uint8_t> MaximumLatency;
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Param<uint32_t> BAR0Size;
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Param<uint32_t> BAR1Size;
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Param<uint32_t> BAR2Size;
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Param<uint32_t> BAR3Size;
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Param<uint32_t> BAR4Size;
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Param<uint32_t> BAR5Size;
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END_DECLARE_SIM_OBJECT_PARAMS(PciConfigData)
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BEGIN_INIT_SIM_OBJECT_PARAMS(PciConfigData)
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INIT_PARAM(VendorID, "Vendor ID"),
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INIT_PARAM(DeviceID, "Device ID"),
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INIT_PARAM_DFLT(Command, "Command Register", 0x00),
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INIT_PARAM_DFLT(Status, "Status Register", 0x00),
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INIT_PARAM_DFLT(Revision, "Device Revision", 0x00),
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INIT_PARAM_DFLT(ProgIF, "Programming Interface", 0x00),
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INIT_PARAM(SubClassCode, "Sub-Class Code"),
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INIT_PARAM(ClassCode, "Class Code"),
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INIT_PARAM_DFLT(CacheLineSize, "System Cacheline Size", 0x00),
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INIT_PARAM_DFLT(LatencyTimer, "PCI Latency Timer", 0x00),
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INIT_PARAM_DFLT(HeaderType, "PCI Header Type", 0x00),
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INIT_PARAM_DFLT(BIST, "Built In Self Test", 0x00),
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INIT_PARAM_DFLT(BAR0, "Base Address Register 0", 0x00),
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INIT_PARAM_DFLT(BAR1, "Base Address Register 1", 0x00),
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INIT_PARAM_DFLT(BAR2, "Base Address Register 2", 0x00),
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INIT_PARAM_DFLT(BAR3, "Base Address Register 3", 0x00),
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INIT_PARAM_DFLT(BAR4, "Base Address Register 4", 0x00),
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INIT_PARAM_DFLT(BAR5, "Base Address Register 5", 0x00),
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INIT_PARAM_DFLT(CardbusCIS, "Cardbus Card Information Structure", 0x00),
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INIT_PARAM_DFLT(SubsystemVendorID, "Subsystem Vendor ID", 0x00),
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INIT_PARAM_DFLT(SubsystemID, "Subsystem ID", 0x00),
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INIT_PARAM_DFLT(ExpansionROM, "Expansion ROM Base Address Register", 0x00),
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INIT_PARAM(InterruptLine, "Interrupt Line Register"),
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INIT_PARAM(InterruptPin, "Interrupt Pin Register"),
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INIT_PARAM_DFLT(MinimumGrant, "Minimum Grant", 0x00),
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INIT_PARAM_DFLT(MaximumLatency, "Maximum Latency", 0x00),
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INIT_PARAM_DFLT(BAR0Size, "Base Address Register 0 Size", 0x00),
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INIT_PARAM_DFLT(BAR1Size, "Base Address Register 1 Size", 0x00),
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INIT_PARAM_DFLT(BAR2Size, "Base Address Register 2 Size", 0x00),
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INIT_PARAM_DFLT(BAR3Size, "Base Address Register 3 Size", 0x00),
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INIT_PARAM_DFLT(BAR4Size, "Base Address Register 4 Size", 0x00),
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INIT_PARAM_DFLT(BAR5Size, "Base Address Register 5 Size", 0x00)
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END_INIT_SIM_OBJECT_PARAMS(PciConfigData)
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CREATE_SIM_OBJECT(PciConfigData)
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{
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PciConfigData *data = new PciConfigData(getInstanceName());
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data->config.vendor = htole(VendorID);
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data->config.device = htole(DeviceID);
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data->config.command = htole(Command);
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data->config.status = htole(Status);
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data->config.revision = htole(Revision);
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data->config.progIF = htole(ProgIF);
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data->config.subClassCode = htole(SubClassCode);
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data->config.classCode = htole(ClassCode);
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data->config.cacheLineSize = htole(CacheLineSize);
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data->config.latencyTimer = htole(LatencyTimer);
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data->config.headerType = htole(HeaderType);
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data->config.bist = htole(BIST);
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data->config.baseAddr0 = htole(BAR0);
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data->config.baseAddr1 = htole(BAR1);
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data->config.baseAddr2 = htole(BAR2);
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data->config.baseAddr3 = htole(BAR3);
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data->config.baseAddr4 = htole(BAR4);
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data->config.baseAddr5 = htole(BAR5);
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data->config.cardbusCIS = htole(CardbusCIS);
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data->config.subsystemVendorID = htole(SubsystemVendorID);
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data->config.subsystemID = htole(SubsystemVendorID);
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data->config.expansionROM = htole(ExpansionROM);
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data->config.interruptLine = htole(InterruptLine);
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data->config.interruptPin = htole(InterruptPin);
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data->config.minimumGrant = htole(MinimumGrant);
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data->config.maximumLatency = htole(MaximumLatency);
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data->BARSize[0] = BAR0Size;
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data->BARSize[1] = BAR1Size;
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data->BARSize[2] = BAR2Size;
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data->BARSize[3] = BAR3Size;
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data->BARSize[4] = BAR4Size;
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data->BARSize[5] = BAR5Size;
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return data;
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}
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REGISTER_SIM_OBJECT("PciConfigData", PciConfigData)
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#endif // DOXYGEN_SHOULD_SKIP_THIS
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