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[v2,0/3] drm: Use iommu_paging_domain_alloc()

Message ID 20240902014700.66095-1-baolu.lu@linux.intel.com
Headers show
Series drm: Use iommu_paging_domain_alloc() | expand

Message

Baolu Lu Sept. 2, 2024, 1:46 a.m. UTC 
Commit <17de3f5fdd35> ("iommu: Retire bus ops") removes iommu ops from
the bus structure. The iommu subsystem no longer relies on bus for
operations. So iommu_domain_alloc() interface is no longer relevant.

A new helper named iommu_paging_domain_alloc() was introduced in the
iommu subsystem as a replacement of iommu_domain_alloc(). This helper
relies on the device for IOMMU API use instead of the bus.

The replacement work started from this series:

https://lore.kernel.org/linux-iommu/20240610085555.88197-1-baolu.lu@linux.intel.com/

Several patches have already been merged into the mainline kernel, but
we've decided to route all remaining ones through the subsystem tree.

Change log:
v2:
 - Patch 3/3: use dev->dev.parent as the input for
   iommu_paging_domain_alloc(), suggested by Thierry Reding.
   https://lore.kernel.org/linux-iommu/qyvyd2ftebjlgmzyayfvxsqa64c4wgx7keix3a6eexdspbvawy@a5ffnm5h5tgp/

v1:
 - https://lore.kernel.org/linux-iommu/20240812071034.9443-1-baolu.lu@linux.intel.com/

Lu Baolu (3):
  drm/nouveau/tegra: Use iommu_paging_domain_alloc()
  drm/rockchip: Use iommu_paging_domain_alloc()
  drm/tegra: Use iommu_paging_domain_alloc()

 drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c |  4 ++--
 drivers/gpu/drm/rockchip/rockchip_drm_drv.c        | 10 +++++++---
 drivers/gpu/drm/tegra/drm.c                        |  5 +++--
 3 files changed, 12 insertions(+), 7 deletions(-)