X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=dev%2Fpcidev.cc;h=9d568e6cce2f83634f9dd1f4ad2bc3566bccbe7e;hb=715176d450fe2c85d3a72d80cd5c2460f8c552cd;hp=f0ceb40f20fa994c7250ec26a0f4c15ca93a4fb4;hpb=be0184b463056645d97598dfc98292f75e579b1a;p=gem5.git diff --git a/dev/pcidev.cc b/dev/pcidev.cc index f0ceb40f2..9d568e6cc 100644 --- a/dev/pcidev.cc +++ b/dev/pcidev.cc @@ -39,47 +39,50 @@ #include "base/misc.hh" #include "base/str.hh" // for to_number #include "base/trace.hh" -#include "dev/pciareg.h" #include "dev/pcidev.hh" #include "dev/pciconfigall.hh" -#include "mem/functional_mem/memory_control.hh" +#include "mem/bus/bus.hh" +#include "mem/functional/memory_control.hh" #include "sim/builder.hh" #include "sim/param.hh" -#include "sim/universe.hh" +#include "sim/root.hh" #include "dev/tsunamireg.h" using namespace std; -PciDev::PciDev(const string &name, MemoryController *mmu, PciConfigAll *cf, - PciConfigData *cd, uint32_t bus, uint32_t dev, uint32_t func) - : DmaDevice(name), mmu(mmu), configSpace(cf), configData(cd), busNum(bus), - deviceNum(dev), functionNum(func) +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 (cd) { - memcpy(config.data, cd->config.data, sizeof(config.data)); - memcpy(BARSize, cd->BARSize, sizeof(BARSize)); - memcpy(BARAddrs, cd->BARAddrs, sizeof(BARAddrs)); + 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 (cf->deviceExists(dev,func)) - panic("Two PCI devices occuping same dev: %#x func: %#x", dev, func); + if (p->configSpace->deviceExists(p->deviceNum, p->functionNum)) + panic("Two PCI devices occuping same dev: %#x func: %#x", + p->deviceNum, p->functionNum); else - cf->registerDevice(dev, func, this); + p->configSpace->registerDevice(p->deviceNum, p->functionNum, this); } 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(uint32_t): memcpy((uint8_t*)data, config.data + offset, sizeof(uint32_t)); *(uint32_t*)data = htoa(*(uint32_t*)data); DPRINTF(PCIDEV, "read device: %#x function: %#x register: %#x %d bytes: data: %#x\n", - deviceNum, functionNum, offset, size, + params()->deviceNum, params()->functionNum, offset, size, *(uint32_t*)(config.data + offset)); break; @@ -88,7 +91,7 @@ PciDev::ReadConfig(int offset, int size, uint8_t *data) *(uint16_t*)data = htoa(*(uint16_t*)data); DPRINTF(PCIDEV, "read device: %#x function: %#x register: %#x %d bytes: data: %#x\n", - deviceNum, functionNum, offset, size, + params()->deviceNum, params()->functionNum, offset, size, *(uint16_t*)(config.data + offset)); break; @@ -96,7 +99,7 @@ PciDev::ReadConfig(int offset, int size, uint8_t *data) memcpy((uint8_t*)data, config.data + offset, sizeof(uint8_t)); DPRINTF(PCIDEV, "read device: %#x function: %#x register: %#x %d bytes: data: %#x\n", - deviceNum, functionNum, offset, size, + params()->deviceNum, params()->functionNum, offset, size, (uint16_t)(*(uint8_t*)(config.data + offset))); break; @@ -108,6 +111,9 @@ PciDev::ReadConfig(int offset, int size, uint8_t *data) void PciDev::WriteConfig(int offset, int size, uint32_t data) { + if (offset >= PCI_DEVICE_SPECIFIC) + panic("Device specific PCI config space not implemented!\n"); + uint32_t barnum; union { @@ -119,7 +125,8 @@ PciDev::WriteConfig(int offset, int size, uint32_t data) DPRINTF(PCIDEV, "write device: %#x function: %#x reg: %#x size: %d data: %#x\n", - deviceNum, functionNum, offset, size, word_value); + params()->deviceNum, params()->functionNum, offset, size, + word_value); barnum = (offset - PCI0_BASE_ADDR0) >> 2; @@ -177,9 +184,12 @@ PciDev::WriteConfig(int offset, int size, uint32_t data) (htoa(config.data[offset]) & 0xF)); } } else { + MemoryController *mmu = params()->mmu; + // This is I/O Space, bottom two bits are read only if(htoa(config.data[offset]) & 0x1) { - *(uint32_t *)&config.data[offset] = htoa((word_value & ~0x3) | + *(uint32_t *)&config.data[offset] = + htoa((word_value & ~0x3) | (htoa(config.data[offset]) & 0x3)); if (word_value & ~0x1) { @@ -201,7 +211,8 @@ PciDev::WriteConfig(int offset, int size, uint32_t data) } else { // This is memory space, bottom four bits are read only - *(uint32_t *)&config.data[offset] = htoa((word_value & ~0xF) | + *(uint32_t *)&config.data[offset] = + htoa((word_value & ~0xF) | (htoa(config.data[offset]) & 0xF)); if (word_value & ~0x3) { @@ -265,7 +276,7 @@ PciDev::unserialize(Checkpoint *cp, const std::string §ion) // Add the MMU mappings for the BARs for (int i=0; i < 6; i++) { if (BARAddrs[i] != 0) - mmu->add_child(this, RangeSize(BARAddrs[i], BARSize[i])); + params()->mmu->add_child(this, RangeSize(BARAddrs[i], BARSize[i])); } }