diff options
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/Kconfig | 4 | ||||
| -rw-r--r-- | arch/x86/kernel/k8.c | 14 | ||||
| -rw-r--r-- | arch/x86/kernel/pci-gart_64.c | 2 |
3 files changed, 17 insertions, 3 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index eb4092568f9..ddb52b8d38a 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -627,7 +627,7 @@ config GART_IOMMU bool "GART IOMMU support" if EMBEDDED default y select SWIOTLB - depends on X86_64 && PCI + depends on X86_64 && PCI && K8_NB ---help--- Support for full DMA access of devices with 32bit memory access only on systems with more than 3GB. This is usually needed for USB, @@ -2026,7 +2026,7 @@ endif # X86_32 config K8_NB def_bool y - depends on AGP_AMD64 || (X86_64 && (GART_IOMMU || (PCI && NUMA))) + depends on CPU_SUP_AMD && PCI source "drivers/pcmcia/Kconfig" diff --git a/arch/x86/kernel/k8.c b/arch/x86/kernel/k8.c index cbc4332a77b..9b895464dd0 100644 --- a/arch/x86/kernel/k8.c +++ b/arch/x86/kernel/k8.c @@ -121,3 +121,17 @@ void k8_flush_garts(void) } EXPORT_SYMBOL_GPL(k8_flush_garts); +static __init int init_k8_nbs(void) +{ + int err = 0; + + err = cache_k8_northbridges(); + + if (err < 0) + printk(KERN_NOTICE "K8 NB: Cannot enumerate AMD northbridges.\n"); + + return err; +} + +/* This has to go after the PCI subsystem */ +fs_initcall(init_k8_nbs); diff --git a/arch/x86/kernel/pci-gart_64.c b/arch/x86/kernel/pci-gart_64.c index 34de53b46f8..f3af115a573 100644 --- a/arch/x86/kernel/pci-gart_64.c +++ b/arch/x86/kernel/pci-gart_64.c @@ -735,7 +735,7 @@ int __init gart_iommu_init(void) unsigned long scratch; long i; - if (cache_k8_northbridges() < 0 || num_k8_northbridges == 0) + if (num_k8_northbridges == 0) return 0; #ifndef CONFIG_AGP_AMD64 |