sanchayanmaity/gem5
1
0
Fork 0
Code Issues Pull requests Packages Projects Releases Wiki Activity

don't handle device specific configuration stuff in the base

Browse source 
class.  While we're at it, very minor formatting.

--HG--
extra : convert_revision : b7c719f92ece7234838434294b33833289adbada
This commit is contained in:
Nathan Binkert 2004-11-13 17:05:13 -05:00
parent 4760ae46c6
commit 9f8db6f446
1 changed files with 10 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

12
dev/pcidev.cc
View file

@ -72,6 +72,9 @@ 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 +110,9 @@ 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 +187,8 @@ 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 +210,8 @@ 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) {