diff options
| -rw-r--r-- | arch/x86_64/kernel/aperture.c | 3 | ||||
| -rw-r--r-- | arch/x86_64/kernel/io_apic.c | 3 | ||||
| -rw-r--r-- | arch/x86_64/kernel/pci-gart.c | 2 | ||||
| -rw-r--r-- | arch/x86_64/mm/init.c | 2 |
4 files changed, 6 insertions, 4 deletions
diff --git a/arch/x86_64/kernel/aperture.c b/arch/x86_64/kernel/aperture.c index c7f4fdd20f0..e4e2b7d01f8 100644 --- a/arch/x86_64/kernel/aperture.c +++ b/arch/x86_64/kernel/aperture.c @@ -23,6 +23,7 @@ #include <asm/io.h> #include <asm/proto.h> #include <asm/pci-direct.h> +#include <asm/dma.h> int iommu_aperture; int iommu_aperture_disabled __initdata = 0; @@ -247,7 +248,7 @@ void __init iommu_hole_init(void) /* Got the aperture from the AGP bridge */ } else if (swiotlb && !valid_agp) { /* Do nothing */ - } else if ((!no_iommu && end_pfn >= 0xffffffff>>PAGE_SHIFT) || + } else if ((!no_iommu && end_pfn >= MAX_DMA32_PFN) || force_iommu || valid_agp || fallback_aper_force) { diff --git a/arch/x86_64/kernel/io_apic.c b/arch/x86_64/kernel/io_apic.c index bdc589924b1..83ea86e0633 100644 --- a/arch/x86_64/kernel/io_apic.c +++ b/arch/x86_64/kernel/io_apic.c @@ -37,6 +37,7 @@ #include <asm/proto.h> #include <asm/mach_apic.h> #include <asm/acpi.h> +#include <asm/dma.h> #define __apicdebuginit __init @@ -281,7 +282,7 @@ void __init check_ioapic(void) switch (vendor) { case PCI_VENDOR_ID_VIA: #ifdef CONFIG_GART_IOMMU - if ((end_pfn >= (0xffffffff>>PAGE_SHIFT) || + if ((end_pfn > MAX_DMA32_PFN || force_iommu) && !iommu_aperture_allowed) { printk(KERN_INFO diff --git a/arch/x86_64/kernel/pci-gart.c b/arch/x86_64/kernel/pci-gart.c index 2b865c90b04..116e00f1bb7 100644 --- a/arch/x86_64/kernel/pci-gart.c +++ b/arch/x86_64/kernel/pci-gart.c @@ -804,7 +804,7 @@ static int __init pci_iommu_init(void) } if (no_iommu || - (!force_iommu && end_pfn < 0xffffffff>>PAGE_SHIFT) || + (!force_iommu && (end_pfn-1) < 0xffffffff>>PAGE_SHIFT) || !iommu_aperture || (no_agp && init_k8_gatt(&info) < 0)) { printk(KERN_INFO "PCI-DMA: Disabling IOMMU.\n"); diff --git a/arch/x86_64/mm/init.c b/arch/x86_64/mm/init.c index 1faae5fc1c0..5337ca0ea7b 100644 --- a/arch/x86_64/mm/init.c +++ b/arch/x86_64/mm/init.c @@ -424,7 +424,7 @@ void __init mem_init(void) #ifdef CONFIG_SWIOTLB if (!iommu_aperture && - (end_pfn >= 0xffffffff>>PAGE_SHIFT || force_iommu)) + ((end_pfn-1) >= 0xffffffff>>PAGE_SHIFT || force_iommu)) swiotlb = 1; if (swiotlb) swiotlb_init(); |