Thread (10 messages) flat view 10 messages, 3 authors, 2023-06-01
STALE1213d

Revision v2 of 2 in this series.

Revisions (2)
  1. v1 [diff vs current]
  2. v2 current

[PATCH v2 0/3] Remove iommu_group_remove_device() from fsl

From: Jason Gunthorpe <jgg@nvidia.com>
Date: 2023-05-17 00:36:49
Also in: linux-iommu

With POWER SPAPR now having a real iommu driver and using the normal group
lifecycle stuff fixing FSL will leave only VFIO's no-iommu support as a
user for the iommu_group_add/remove_device() calls. This will help
simplify the understanding of what the core code should be doing for these
functions.

Fix FSL to not need to call iommu_group_remove_device() at all.

v2:
 - Change the approach to use driver_managed_dma
 - Really simplify fsl_pamu_device_group() and just put everything in one
   function
 - New patch to make missing OF properties a probe failure
v1: https://lore.kernel.org/r/0-v1-1421774b874b+167-ppc_device_group_jgg@nvidia.com (local)

Jason Gunthorpe (3):
  iommu/fsl: Always allocate a group for non-pci devices
  iommu/fsl: Move ENODEV to fsl_pamu_probe_device()
  iommu/fsl: Use driver_managed_dma to allow VFIO to work

 arch/powerpc/sysdev/fsl_pci.c   |   1 +
 drivers/iommu/fsl_pamu_domain.c | 123 +++++++++-----------------------
 2 files changed, 36 insertions(+), 88 deletions(-)


base-commit: 1421774b874bfd5fd1b2b05b59b67c0c5e0d513e
-- 
2.40.1
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