iommu/arm-smmu: Convert DMA buffer allocations to the managed API

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The ARM SMMUv3 driver uses dma_{alloc,free}_coherent to manage its
queues and configuration data structures.

This patch converts the driver to the managed (dmam_*) API, so that
resources are freed automatically on device teardown. This greatly
simplifies the failure paths and allows us to remove a bunch of
handcrafted freeing code.

Signed-off-by: Will Deacon <will.deacon@arm.com>

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This commit is contained in:

Will Deacon 2015-10-30 18:12:41 +00:00

parent 89df3a96ba

commit 04fa26c71b

1 changed files with 21 additions and 111 deletions

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drivers/iommu/arm-smmu-v3.c

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