[PATCH 04/04] PCI: let AMD boxes use MMCONFIG

Greg KH
2005-06-15T05:33:33Z

Now that we parse and handle the MCFG table properly, we can hopefully
remove the AMD check and let those boxes use MMCONFIG.

Note, this needs _lots_ of testing on lots of boxes before going to
mainline...

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
arch/i386/pci/mmconfig.c | 7 -------
arch/x86_64/pci/mmconfig.c | 7 -------
2 files changed, 14 deletions(-)

--- gregkh-2.6.orig/arch/i386/pci/mmconfig.c 2005-06-14 22:07:52.000000000 -0700
+++ gregkh-2.6/arch/i386/pci/mmconfig.c 2005-06-14 22:09:16.000000000 -0700
@@ -127,13 +127,6 @@
(pci_mmcfg_config[0].base_address == 0))
goto out;

- /* Kludge for now. Don't use mmconfig on AMD systems because
- those have some busses where mmconfig doesn't work,
- and we don't parse ACPI MCFG well enough to handle that.
- Remove when proper handling is added. */
- if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD)
- goto out;
-
printk(KERN_INFO "PCI: Using MMCONFIG\n");
raw_pci_ops = &pci_mmcfg;
pci_probe = (pci_probe & ~PCI_PROBE_MASK) | PCI_PROBE_MMCONF;
--- gregkh-2.6.orig/arch/x86_64/pci/mmconfig.c 2005-06-14 22:08:44.000000000 -0700
+++ gregkh-2.6/arch/x86_64/pci/mmconfig.c 2005-06-14 22:09:11.000000000 -0700
@@ -111,13 +111,6 @@
(pci_mmcfg_config[0].base_address == 0))
return 0;

- /* Kludge for now. Don't use mmconfig on AMD systems because
- those have some busses where mmconfig doesn't work,
- and we don't parse ACPI MCFG well enough to handle that.
- Remove when proper handling is added. */
- if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD)
- return 0;
-
/* RED-PEN i386 doesn't do _nocache right now */
pci_mmcfg_virt = kmalloc(sizeof(*pci_mmcfg_virt) * pci_mmcfg_config_num, GFP_KERNEL);
if (pci_mmcfg_virt == NULL) {