iommu/amd: Add several helper functions

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Move single iommu enabling codes into a wrapper function early_enable_iommu().
This can make later kdump change easier.

And also add iommu_disable_command_buffer and iommu_disable_event_buffer
for later usage.

Signed-off-by: Baoquan He <bhe@redhat.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>

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Baoquan He 2017-08-09 16:33:34 +08:00 • committed by Joerg Roedel

parent 4c232a708b

commit 78d313c611

1 changed files with 31 additions and 11 deletions

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drivers/iommu/amd_iommu_init.c

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