RE: [PATCH v9 02/11] iommu: Add max_pasids field in struct dev_iommu

[Tian, Kevin]

> From: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>
> Sent: Tuesday, June 21, 2022 10:44 PM
> 
> Use this field to save the number of PASIDs that a device is able to
> consume. It is a generic attribute of a device and lifting it into the
> per-device dev_iommu struct could help to avoid the boilerplate code
> in various IOMMU drivers.
> 
> Signed-off-by: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>
> ---
>  include/linux/iommu.h |  2 ++
>  drivers/iommu/iommu.c | 20 ++++++++++++++++++++
>  2 files changed, 22 insertions(+)
> 
> diff --git a/include/linux/iommu.h b/include/linux/iommu.h
> index 03fbb1b71536..d50afb2c9a09 100644
> --- a/include/linux/iommu.h
> +++ b/include/linux/iommu.h
> @@ -364,6 +364,7 @@ struct iommu_fault_param {
>   * @fwspec:	 IOMMU fwspec data
>   * @iommu_dev:	 IOMMU device this device is linked to
>   * @priv:	 IOMMU Driver private data
> + * @max_pasids:  number of PASIDs device can consume

... PASIDs *this* device can consume

Reviewed-by: Kevin Tian <kevin.tian@xxxxxxxxx>