From 5b6985ce8ec7127b4d60ad450b64ca8b82748a3b Mon Sep 17 00:00:00 2001 From: Fenghua Yu Date: Thu, 16 Oct 2008 18:02:32 -0700 Subject: intel-iommu: IA64 support The current Intel IOMMU code assumes that both host page size and Intel IOMMU page size are 4KiB. The first patch supports variable page size. This provides support for IA64 which has multiple page sizes. This patch also adds some other code hooks for IA64 platform including DMAR_OPERATION_TIMEOUT definition. [dwmw2: some cleanup] Signed-off-by: Fenghua Yu Signed-off-by: Tony Luck Signed-off-by: David Woodhouse --- arch/x86/kernel/pci-dma.c | 16 ---------------- 1 file changed, 16 deletions(-) (limited to 'arch') diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c index 19262482021..1972266e8ba 100644 --- a/arch/x86/kernel/pci-dma.c +++ b/arch/x86/kernel/pci-dma.c @@ -9,8 +9,6 @@ #include #include -static int forbid_dac __read_mostly; - struct dma_mapping_ops *dma_ops; EXPORT_SYMBOL(dma_ops); @@ -293,17 +291,3 @@ void pci_iommu_shutdown(void) } /* Must execute after PCI subsystem */ fs_initcall(pci_iommu_init); - -#ifdef CONFIG_PCI -/* Many VIA bridges seem to corrupt data for DAC. Disable it here */ - -static __devinit void via_no_dac(struct pci_dev *dev) -{ - if ((dev->class >> 8) == PCI_CLASS_BRIDGE_PCI && forbid_dac == 0) { - printk(KERN_INFO "PCI: VIA PCI bridge detected." - "Disabling DAC.\n"); - forbid_dac = 1; - } -} -DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_ANY_ID, via_no_dac); -#endif -- cgit v1.2.3 From f609891f428e1c20e270e7c350daf8c93cc459d7 Mon Sep 17 00:00:00 2001 From: Andreas Herrmann Date: Thu, 16 Oct 2008 16:27:36 +0200 Subject: amd_iommu: fix nasty bug that caused ILLEGAL_DEVICE_TABLE_ENTRY errors We are on 64-bit so better use u64 instead of u32 to deal with addresses: static void __init iommu_set_device_table(struct amd_iommu *iommu) { u64 entry; ... entry = virt_to_phys(amd_iommu_dev_table); ... (I am wondering why gcc 4.2.x did not warn about the assignment between u32 and unsigned long.) Cc: iommu@lists.linux-foundation.org Cc: stable@kernel.org Signed-off-by: Andreas Herrmann Signed-off-by: Joerg Roedel Signed-off-by: David Woodhouse --- arch/x86/kernel/amd_iommu_init.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c index 4cd8083c58b..0cdcda35a05 100644 --- a/arch/x86/kernel/amd_iommu_init.c +++ b/arch/x86/kernel/amd_iommu_init.c @@ -212,7 +212,7 @@ static void __init iommu_set_exclusion_range(struct amd_iommu *iommu) /* Programs the physical address of the device table into the IOMMU hardware */ static void __init iommu_set_device_table(struct amd_iommu *iommu) { - u32 entry; + u64 entry; BUG_ON(iommu->mmio_base == NULL); -- cgit v1.2.3