iommu/amd: Change rlookup, irq_lookup, and alias to use kvalloc()

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This is just CPU memory used by the driver to track things, it doesn't
need to use iommu-pages. All of them are indexed by devid and devid is
bounded by pci_seg->last_bdf or we are already out of bounds on the page
allocation.

Switch them to use some version of kvmalloc_array() and drop the now
unused constants and remove the tbl_size() round up to PAGE_SIZE multiples
logic.

Tested-by: Alejandro Jimenez <alejandro.j.jimenez@oracle.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/16-v4-c8663abbb606+3f7-iommu_pages_jgg@nvidia.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>

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Jason Gunthorpe 2025-04-08 13:54:04 -03:00 • committed by Joerg Roedel

parent b3efacc451

commit e874c666b1

2 changed files with 12 additions and 22 deletions

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8

drivers/iommu/amd/amd_iommu_types.h

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26

drivers/iommu/amd/init.c

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