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Byte-addressable PCI config space

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This commit is contained in:
Vladimir 'phcoder' Serbinenko 2009-12-22 15:09:25 +01:00
parent dc77a79959
commit fbb8a88714
13 changed files with 117 additions and 25 deletions
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6
bus/pci.c
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@ -24,7 +24,7 @@ grub_pci_address_t
grub_pci_make_address (grub_pci_device_t dev, int reg)
{
return (1 << 31) | (dev.bus << 16) | (dev.device << 11)
| (dev.function << 8) | (reg << 2);
| (dev.function << 8) | reg;
}
void
@ -41,7 +41,7 @@ grub_pci_iterate (grub_pci_iteratefunc_t hook)
{
for (dev.function = 0; dev.function < 8; dev.function++)
{
addr = grub_pci_make_address (dev, 0);
addr = grub_pci_make_address (dev, GRUB_PCI_REG_PCI_ID);
id = grub_pci_read (addr);
/* Check if there is a device present. */
@ -54,7 +54,7 @@ grub_pci_iterate (grub_pci_iteratefunc_t hook)
/* Probe only func = 0 if the device if not multifunction */
if (dev.function == 0)
{
addr = grub_pci_make_address (dev, 3);
addr = grub_pci_make_address (dev, GRUB_PCI_REG_CACHELINE);
hdr = grub_pci_read (addr);
if (!(hdr & 0x800000))
break;