linux-kernel - [PATCH 0/2] iommufd: Only enforce_cache

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Date:   Fri, 20 Oct 2023 17:37:09 -0700
From:   Nicolin Chen <nicolinc@...dia.com>
To:     <jgg@...dia.com>, <kevin.tian@...el.com>
CC:     <joro@...tes.org>, <will@...nel.org>, <robin.murphy@....com>,
        <baolu.lu@...ux.intel.com>, <iommu@...ts.linux.dev>,
        <linux-kernel@...r.kernel.org>, <yi.l.liu@...el.com>
Subject: [PATCH 0/2] iommufd: Only enforce_cache_coherency when allocating hwpt

https://lore.kernel.org/linux-iommu/20231020135501.GG3952@nvidia.com/
The conversation above concluded that a hwpt should only enforce cache
coherency per device at the stage of its allocation, and it should not
be changed or updated in the attach/replace routines.

Add two patches dropping the enforce_cache_coherency calls from attach
and replce routines respectively, since they were introduced with two
different commits.

Nicolin Chen (2):
  iommufd/device: Drop enforce_cache_coherency in
    iommufd_device_do_replace
  iommufd/device: Drop enforce_cache_coherency in
    iommufd_hw_pagetable_attach

 drivers/iommu/iommufd/device.c          | 19 ++-----------------
 drivers/iommu/iommufd/hw_pagetable.c    |  2 +-
 drivers/iommu/iommufd/iommufd_private.h |  1 -
 3 files changed, 3 insertions(+), 19 deletions(-)

-- 
2.42.0