x86/amd-iommu: Cleanup completion-wait handling

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This patch cleans up the implementation of completion-wait
command sending. It also switches the completion indicator
from the MMIO bit to a memory store which can be checked
without IOMMU locking.
As a side effect this patch makes the __iommu_queue_command
function obsolete and so it is removed too.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>

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Joerg Roedel 2011-04-06 17:26:49 +02:00

parent 11b6402c66

commit 815b33fdc2

1 changed files with 28 additions and 79 deletions

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arch/x86/kernel/amd_iommu.c

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