aboutsummaryrefslogtreecommitdiff
path: root/arch/x86_64/pci
diff options
context:
space:
mode:
Diffstat (limited to 'arch/x86_64/pci')
-rw-r--r--arch/x86_64/pci/mmconfig.c16
1 files changed, 9 insertions, 7 deletions
diff --git a/arch/x86_64/pci/mmconfig.c b/arch/x86_64/pci/mmconfig.c
index b693c232fd0..09cfcc1234b 100644
--- a/arch/x86_64/pci/mmconfig.c
+++ b/arch/x86_64/pci/mmconfig.c
@@ -7,15 +7,13 @@
#include <linux/pci.h>
#include <linux/init.h>
+#include <linux/acpi.h>
#include "pci.h"
#define MMCONFIG_APER_SIZE (256*1024*1024)
-/* The physical address of the MMCONFIG aperture. Set from ACPI tables. */
-u32 pci_mmcfg_base_addr;
-
/* Static virtual mapping of the MMCONFIG aperture */
-char *pci_mmcfg_virt;
+static char *pci_mmcfg_virt;
static inline char *pci_dev_base(unsigned int bus, unsigned int devfn)
{
@@ -77,7 +75,11 @@ static int __init pci_mmcfg_init(void)
{
if ((pci_probe & PCI_PROBE_MMCONF) == 0)
return 0;
- if (!pci_mmcfg_base_addr)
+
+ acpi_table_parse(ACPI_MCFG, acpi_parse_mcfg);
+ if ((pci_mmcfg_config_num == 0) ||
+ (pci_mmcfg_config == NULL) ||
+ (pci_mmcfg_config[0].base_address == 0))
return 0;
/* Kludge for now. Don't use mmconfig on AMD systems because
@@ -88,13 +90,13 @@ static int __init pci_mmcfg_init(void)
return 0;
/* RED-PEN i386 doesn't do _nocache right now */
- pci_mmcfg_virt = ioremap_nocache(pci_mmcfg_base_addr, MMCONFIG_APER_SIZE);
+ pci_mmcfg_virt = ioremap_nocache(pci_mmcfg_config[0].base_address, MMCONFIG_APER_SIZE);
if (!pci_mmcfg_virt) {
printk("PCI: Cannot map mmconfig aperture\n");
return 0;
}
- printk(KERN_INFO "PCI: Using MMCONFIG at %x\n", pci_mmcfg_base_addr);
+ printk(KERN_INFO "PCI: Using MMCONFIG at %x\n", pci_mmcfg_config[0].base_address);
raw_pci_ops = &pci_mmcfg;
pci_probe = (pci_probe & ~PCI_PROBE_MASK) | PCI_PROBE_MMCONF;