iommu/amd: Convert dev_data lock from spinlock to mutex

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Currently in attach device path it takes dev_data->spinlock. But as per
design attach device path can sleep. Also if device is PRI capable then
it adds device to IOMMU fault handler queue which takes mutex. Hence
currently PRI enablement is done outside dev_data lock.

Covert dev_data lock from spinlock to mutex so that it follows the
design and also PRI enablement can be done properly.

Signed-off-by: Vasant Hegde <vasant.hegde@amd.com>
Reviewed-by: Joerg Roedel <jroedel@suse.de>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20241030063556.6104-10-vasant.hegde@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>

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Vasant Hegde 2024-10-30 06:35:53 +00:00 • committed by Joerg Roedel

parent 4b18ef8491

commit e843aedbeb

2 changed files with 8 additions and 8 deletions

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2

drivers/iommu/amd/amd_iommu_types.h

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14

drivers/iommu/amd/iommu.c

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