iommu/amd: Refactor helper function for setting / clearing GCR3

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Refactor GCR3 helper functions in preparation to use per device
GCR3 table.
  * Add new function update_gcr3 to update per device GCR3 table

  * Remove per domain default GCR3 setup during v2 page table allocation.
    Subsequent patch will add support to setup default gcr3 while
    attaching device to domain.

  * Remove amd_iommu_domain_update() from V2 page table path as device
    detach path will take care of updating the domain.

  * Consolidate GCR3 table related code in one place so that its easy
    to maintain.

  * Rename functions to reflect its usage.

Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Co-developed-by: Vasant Hegde <vasant.hegde@amd.com>
Signed-off-by: Vasant Hegde <vasant.hegde@amd.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20240205115615.6053-11-vasant.hegde@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>

...

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Suravee Suthikulpanit 2024-02-05 11:56:08 +00:00 • committed by Joerg Roedel

parent bf8aff2945

commit e8e1aac334

3 changed files with 61 additions and 83 deletions

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8

drivers/iommu/amd/amd_iommu.h

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21

drivers/iommu/amd/io_pgtable_v2.c

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115

drivers/iommu/amd/iommu.c

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