[prev in list] [next in list] [prev in thread] [next in thread] 

List:       linux-kernel
Subject:    RE: [PATCH v3 7/7] dmaengine/idxd: Re-enable kernel workqueue under DMA API
From:       "Yu, Fenghua" <fenghua.yu () intel ! com>
Date:       2023-03-31 23:31:13
Message-ID: IA1PR11MB609783D2D1159E4AA6F6099E9B8F9 () IA1PR11MB6097 ! namprd11 ! prod ! outlook ! com
[Download RAW message or body]

Hi, Jacob,

> Kernel workqueues were disabled due to flawed use of kernel VA and SVA API.
> Now That we have the support for attaching PASID to the device's default

s/That/that/

> domain and the ability to reserve global PASIDs from SVA APIs, we can re-enable
> the kernel work queues and use them under DMA API.
> 
> We also use non-privileged access for in-kernel DMA to be consistent with the
> IOMMU settings. Consequently, interrupt for user privilege is enabled for work
> completion IRQs.
> 
> Link:https://lore.kernel.org/linux-
> iommu/20210511194726.GP1002214@nvidia.com/
> Reviewed-by: Dave Jiang <dave.jiang@intel.com>
> Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>

Other than the typo,

Reviewed-by: Fenghua Yu <fenghua.yu@intel.com>

Thanks.

-Fenghua
[prev in list] [next in list] [prev in thread] [next in thread]