diff options
author | Tony Luck <tony.luck@intel.com> | 2006-06-23 13:46:23 -0700 |
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committer | Tony Luck <tony.luck@intel.com> | 2006-06-23 13:46:23 -0700 |
commit | 8cf60e04a131310199d5776e2f9e915f0c468899 (patch) | |
tree | 373a68e88e6737713a0a5723d552cdeefffff929 /arch/i386/pci/mmconfig.c | |
parent | 1323523f505606cfd24af6122369afddefc3b09d (diff) | |
parent | 95eaa5fa8eb2c345244acd5f65b200b115ae8c65 (diff) |
Auto-update from upstream
Diffstat (limited to 'arch/i386/pci/mmconfig.c')
-rw-r--r-- | arch/i386/pci/mmconfig.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/arch/i386/pci/mmconfig.c b/arch/i386/pci/mmconfig.c index 6b1ea0c9a57..e545b0992c4 100644 --- a/arch/i386/pci/mmconfig.c +++ b/arch/i386/pci/mmconfig.c @@ -15,7 +15,9 @@ #include <asm/e820.h> #include "pci.h" -#define MMCONFIG_APER_SIZE (256*1024*1024) +/* aperture is up to 256MB but BIOS may reserve less */ +#define MMCONFIG_APER_MIN (2 * 1024*1024) +#define MMCONFIG_APER_MAX (256 * 1024*1024) /* Assume systems with more busses have correct MCFG */ #define MAX_CHECK_BUS 16 @@ -197,9 +199,10 @@ void __init pci_mmcfg_init(void) return; if (!e820_all_mapped(pci_mmcfg_config[0].base_address, - pci_mmcfg_config[0].base_address + MMCONFIG_APER_SIZE, + pci_mmcfg_config[0].base_address + MMCONFIG_APER_MIN, E820_RESERVED)) { - printk(KERN_ERR "PCI: BIOS Bug: MCFG area is not E820-reserved\n"); + printk(KERN_ERR "PCI: BIOS Bug: MCFG area at %x is not E820-reserved\n", + pci_mmcfg_config[0].base_address); printk(KERN_ERR "PCI: Not using MMCONFIG.\n"); return; } |