X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=dev%2Fpcidev.cc;h=9d568e6cce2f83634f9dd1f4ad2bc3566bccbe7e;hb=715176d450fe2c85d3a72d80cd5c2460f8c552cd;hp=0c64bcb94c6ce37db0f753f3c136ea6c1db3812a;hpb=b031888038a905e1572bbd3ed42ee4e4a7f599a6;p=gem5.git diff --git a/dev/pcidev.cc b/dev/pcidev.cc index 0c64bcb94..9d568e6cc 100644 --- a/dev/pcidev.cc +++ b/dev/pcidev.cc @@ -39,19 +39,20 @@ #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(Params *p) - : DmaDevice(p->name), _params(p), plat(p->plat), configData(p->configData) + : DmaDevice(p->name, p->plat), _params(p), plat(p->plat), + configData(p->configData) { // copy the config data from the PciConfigData object if (configData) { @@ -72,6 +73,9 @@ PciDev::PciDev(Params *p) 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)); @@ -107,6 +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 { @@ -181,7 +188,8 @@ PciDev::WriteConfig(int offset, int size, uint32_t data) // 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) { @@ -203,7 +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) {