iommu/amd: Build io page-tables with cmpxchg64

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This allows to build up the page-tables without holding any
locks. As a consequence it removes the need to pre-populate
dma_ops page-tables.

Signed-off-by: Joerg Roedel <jroedel@suse.de>

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This commit is contained in:

Joerg Roedel 2015-12-21 19:07:50 +01:00

parent 266a3bd28f

commit 7bfa5bd270

1 changed files with 13 additions and 3 deletions

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16

drivers/iommu/amd_iommu.c

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