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| author |   Joerg Roedel <joerg.roedel@amd.com> | 2008-06-26 21:28:07 +0200 |
|---|---|---|
| committer |   Ingo Molnar <mingo@elte.hu> | 2008-06-27 10:12:21 +0200 |
| commit | 8736197ba8e40d030eec0ab7a9e9f2be41810c4e (patch) | |
| tree | 2ad786a9626caec77f5a4e11b12d44999661c789 /arch/x86/kernel/amd_iommu_init.c | |
| parent | x86, AMD IOMMU: add amd_iommu.h to export functions to the generic x86 dma code (diff) | |
| download | linux-dev-8736197ba8e40d030eec0ab7a9e9f2be41810c4e.tar.xz linux-dev-8736197ba8e40d030eec0ab7a9e9f2be41810c4e.zip | |
x86, AMD IOMMU: initialize dma_ops from IOMMU initialization and enable IOMMUs
This patch adds a call to the driver specific dma_ops initialization routine
from the AMD IOMMU hardware initialization. Further it adds the necessary code
to finally enable AMD IOMMU hardware.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Cc: iommu@lists.linux-foundation.org
Cc: bhavna.sarathy@amd.com
Cc: Sebastian.Biemueller@amd.com
Cc: robert.richter@amd.com
Cc: joro@8bytes.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/amd_iommu_init.c')
| -rw-r--r-- | arch/x86/kernel/amd_iommu_init.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c index bae4a76a3b54..d1aa2344cd90 100644 --- a/arch/x86/kernel/amd_iommu_init.c +++ b/arch/x86/kernel/amd_iommu_init.c @@ -644,6 +644,16 @@ static int __init init_memory_definitions(struct acpi_table_header *table) return 0; } +static void __init enable_iommus(void) +{ + struct amd_iommu *iommu; + + list_for_each_entry(iommu, &amd_iommu_list, list) { + iommu_set_exclusion_range(iommu); + iommu_enable(iommu); + } +} + int __init amd_iommu_init(void) { int i, ret = 0; @@ -731,6 +741,12 @@ int __init amd_iommu_init(void) if (acpi_table_parse("IVRS", init_memory_definitions) != 0) goto free; + ret = amd_iommu_init_dma_ops(); + if (ret) + goto free; + + enable_iommus(); + printk(KERN_INFO "AMD IOMMU: aperture size is %d MB\n", (1 << (amd_iommu_aperture_order-20))); |