Re: [PATCH v2 2/6] iommu/vt-d: Move intel_drain_pasid_prq() into intel_pasid_tear_down_entry()

[Baolu Lu <baolu.lu@linux.intel.com>]

On 2024/9/12 21:04, Yi Liu wrote:
> Draining PRQ is mostly conjuncted with pasid teardown, and with more callers coming,
> move it into it in the intel_pasid_tear_down_entry(). But there is scenario that only
> teardown pasid entry but no PRQ drain, so passing a flag to mark it.

Is it a reasonable case where PRI needs to be drained but the pasid
entry won't be torn down? For example, could this happen when a PRI is
disabled?

> 
> Signed-off-by: Yi Liu<yi.l.liu@intel.com>
> ---
>   drivers/iommu/intel/iommu.c |  8 ++++----
>   drivers/iommu/intel/pasid.c | 13 +++++++++++--
>   drivers/iommu/intel/pasid.h |  8 +++++---
>   drivers/iommu/intel/svm.c   |  3 ++-
>   4 files changed, 22 insertions(+), 10 deletions(-)

Thanks,
baolu