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authorJoerg Roedel <joerg.roedel@amd.com>2008-09-11 04:38:32 -0400
committerIngo Molnar <mingo@elte.hu>2008-09-19 06:59:22 -0400
commit38ddf41b198e21d3ecbe5752e875857b7ce7589e (patch)
tree5c20869c5f66a92087627853e742c2af5176b7c6 /arch/x86/kernel
parentbd60b735c658e6e8c656e89771d281bcfcf51279 (diff)
AMD IOMMU: some set_device_domain cleanups
Remove some magic numbers and split the pte_root using standard functions. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel')
-rw-r--r--arch/x86/kernel/amd_iommu.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index 7c1791447451..a34d8e915e3a 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -739,12 +739,13 @@ static void set_device_domain(struct amd_iommu *iommu,
739 739
740 u64 pte_root = virt_to_phys(domain->pt_root); 740 u64 pte_root = virt_to_phys(domain->pt_root);
741 741
742 pte_root |= (domain->mode & 0x07) << 9; 742 pte_root |= (domain->mode & DEV_ENTRY_MODE_MASK)
743 pte_root |= IOMMU_PTE_IR | IOMMU_PTE_IW | IOMMU_PTE_P | 2; 743 << DEV_ENTRY_MODE_SHIFT;
744 pte_root |= IOMMU_PTE_IR | IOMMU_PTE_IW | IOMMU_PTE_P | IOMMU_PTE_TV;
744 745
745 write_lock_irqsave(&amd_iommu_devtable_lock, flags); 746 write_lock_irqsave(&amd_iommu_devtable_lock, flags);
746 amd_iommu_dev_table[devid].data[0] = pte_root; 747 amd_iommu_dev_table[devid].data[0] = lower_32_bits(pte_root);
747 amd_iommu_dev_table[devid].data[1] = pte_root >> 32; 748 amd_iommu_dev_table[devid].data[1] = upper_32_bits(pte_root);
748 amd_iommu_dev_table[devid].data[2] = domain->id; 749 amd_iommu_dev_table[devid].data[2] = domain->id;
749 750
750 amd_iommu_pd_table[devid] = domain; 751 amd_iommu_pd_table[devid] = domain;