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x86, AMD IOMMU: initialize dma_ops from IOMMU initialization and enable IOMMUs

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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>
This commit is contained in:
Joerg Roedel 2008-06-26 21:28:07 +02:00 committed by Ingo Molnar
parent c6da992e16
commit 8736197ba8
1 changed files with 16 additions and 0 deletions
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16
arch/x86/kernel/amd_iommu_init.c
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@ -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)));