From: "Yu, Fenghua" <fenghua.yu@intel.com>
To: Jacob Pan <jacob.jun.pan@linux.intel.com>,
LKML <linux-kernel@vger.kernel.org>,
"iommu@lists.linux.dev" <iommu@lists.linux.dev>,
Robin Murphy <robin.murphy@arm.com>,
Jason Gunthorpe <jgg@nvidia.com>,
Lu Baolu <baolu.lu@linux.intel.com>,
Joerg Roedel <joro@8bytes.org>,
"dmaengine@vger.kernel.org" <dmaengine@vger.kernel.org>,
"vkoul@kernel.org" <vkoul@kernel.org>
Cc: Will Deacon <will@kernel.org>,
David Woodhouse <dwmw2@infradead.org>,
"Raj, Ashok" <ashok.raj@intel.com>,
"Tian, Kevin" <kevin.tian@intel.com>,
"Liu, Yi L" <yi.l.liu@intel.com>,
"Jiang, Dave" <dave.jiang@intel.com>,
"Luck, Tony" <tony.luck@intel.com>,
"Zanussi, Tom" <tom.zanussi@intel.com>
Subject: RE: [PATCH v3 7/7] dmaengine/idxd: Re-enable kernel workqueue under DMA API
Date: Fri, 31 Mar 2023 23:31:13 +0000 [thread overview]
Message-ID: <IA1PR11MB609783D2D1159E4AA6F6099E9B8F9@IA1PR11MB6097.namprd11.prod.outlook.com> (raw)
In-Reply-To: <20230331231137.1947675-8-jacob.jun.pan@linux.intel.com>
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
next prev parent reply other threads:[~2023-03-31 23:31 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-31 23:11 [PATCH v3 0/7] Re-enable IDXD kernel workqueue under DMA API Jacob Pan
2023-03-31 23:11 ` [PATCH v3 1/7] iommu/vt-d: Use non-privileged mode for all PASIDs Jacob Pan
2023-04-01 13:41 ` Baolu Lu
2023-03-31 23:11 ` [PATCH v3 2/7] iommu/vt-d: Remove PASID supervisor request support Jacob Pan
2023-03-31 23:11 ` [PATCH v3 3/7] iommu/sva: Support allocation of global PASIDs outside SVA Jacob Pan
2023-04-01 13:16 ` Baolu Lu
2023-04-03 20:44 ` Jacob Pan
2023-04-01 13:28 ` Baolu Lu
2023-04-03 20:55 ` Jacob Pan
2023-03-31 23:11 ` [PATCH v3 4/7] iommu/vt-d: Reserve RID_PASID from global PASID space Jacob Pan
2023-04-01 13:43 ` Baolu Lu
2023-04-03 21:40 ` Jacob Pan
2023-03-31 23:11 ` [PATCH v3 5/7] iommu/vt-d: Make device pasid attachment explicit Jacob Pan
2023-03-31 23:11 ` [PATCH v3 6/7] iommu/vt-d: Implement set_dev_pasid domain op Jacob Pan
2023-04-01 13:48 ` Baolu Lu
2023-04-03 21:48 ` Jacob Pan
2023-04-04 5:24 ` Baolu Lu
2023-03-31 23:11 ` [PATCH v3 7/7] dmaengine/idxd: Re-enable kernel workqueue under DMA API Jacob Pan
2023-03-31 23:31 ` Yu, Fenghua [this message]
2023-04-03 21:56 ` Jacob Pan
2023-04-01 13:39 ` Baolu Lu
2023-04-03 21:54 ` Jacob Pan
2023-04-05 12:15 ` Jason Gunthorpe
2023-04-06 2:49 ` Baolu Lu
2023-04-06 12:23 ` [PATCH v3 0/7] Re-enable IDXD " Baolu Lu
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=IA1PR11MB609783D2D1159E4AA6F6099E9B8F9@IA1PR11MB6097.namprd11.prod.outlook.com \
--to=fenghua.yu@intel.com \
--cc=ashok.raj@intel.com \
--cc=baolu.lu@linux.intel.com \
--cc=dave.jiang@intel.com \
--cc=dmaengine@vger.kernel.org \
--cc=dwmw2@infradead.org \
--cc=iommu@lists.linux.dev \
--cc=jacob.jun.pan@linux.intel.com \
--cc=jgg@nvidia.com \
--cc=joro@8bytes.org \
--cc=kevin.tian@intel.com \
--cc=linux-kernel@vger.kernel.org \
--cc=robin.murphy@arm.com \
--cc=tom.zanussi@intel.com \
--cc=tony.luck@intel.com \
--cc=vkoul@kernel.org \
--cc=will@kernel.org \
--cc=yi.l.liu@intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).