From: Jacob Pan <jacob.jun.pan@linux.intel.com>
To: Baolu Lu <baolu.lu@linux.intel.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
iommu@lists.linux.dev, Robin Murphy <robin.murphy@arm.com>,
Jason Gunthorpe <jgg@nvidia.com>, Joerg Roedel <joro@8bytes.org>,
dmaengine@vger.kernel.org, vkoul@kernel.org,
Will Deacon <will@kernel.org>,
David Woodhouse <dwmw2@infradead.org>,
Raj Ashok <ashok.raj@intel.com>,
"Tian, Kevin" <kevin.tian@intel.com>, Yi Liu <yi.l.liu@intel.com>,
"Yu, Fenghua" <fenghua.yu@intel.com>,
Dave Jiang <dave.jiang@intel.com>,
Tony Luck <tony.luck@intel.com>,
"Zanussi, Tom" <tom.zanussi@intel.com>,
narayan.ranganathan@intel.com, jacob.jun.pan@linux.intel.com
Subject: Re: [PATCH v5 3/7] iommu: Move global PASID allocation from SVA to core
Date: Thu, 4 May 2023 14:26:33 -0700 [thread overview]
Message-ID: <20230504142633.1a7e78ae@jacob-builder> (raw)
In-Reply-To: <db3be8a2-6520-9652-6bee-dbceb320cfc2@linux.intel.com>
Hi Baolu,
On Wed, 3 May 2023 14:32:15 +0800, Baolu Lu <baolu.lu@linux.intel.com>
wrote:
> On 4/28/23 1:49 AM, Jacob Pan wrote:
> > +ioasid_t iommu_alloc_global_pasid_dev(struct device *dev)
> > +{
> > + int ret;
> > + ioasid_t max;
> > +
> > + max = dev_iommu_get_max_pasids(dev);
>
> Perhaps you can use dev->iommu->max_pasids. It's static, so no need to
> recalculate it.
>
sounds good!
Thanks,
Jacob
next prev parent reply other threads:[~2023-05-04 21:22 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-27 17:49 [PATCH v5 0/7] Re-enable IDXD kernel workqueue under DMA API Jacob Pan
2023-04-27 17:49 ` [PATCH v5 1/7] iommu: Generalize default PCIe requester ID PASID Jacob Pan
2023-04-28 9:38 ` Tian, Kevin
2023-04-28 15:56 ` Jacob Pan
2023-05-05 8:28 ` Tian, Kevin
2023-05-09 20:39 ` Jacob Pan
2023-04-27 17:49 ` [PATCH v5 2/7] iommu/sva: Explicitly exclude RID_PASID from SVA Jacob Pan
2023-04-28 9:40 ` Tian, Kevin
2023-04-28 15:56 ` Jacob Pan
2023-04-27 17:49 ` [PATCH v5 3/7] iommu: Move global PASID allocation from SVA to core Jacob Pan
2023-04-28 9:46 ` Tian, Kevin
2023-04-28 16:40 ` Jacob Pan
2023-05-03 6:32 ` Baolu Lu
2023-05-04 21:26 ` Jacob Pan [this message]
2023-04-27 17:49 ` [PATCH v5 4/7] iommu/vt-d: Factoring out PASID set up helper function Jacob Pan
2023-04-28 9:47 ` Tian, Kevin
2023-05-03 6:37 ` Baolu Lu
2023-05-04 21:39 ` Jacob Pan
2023-05-04 21:27 ` Jacob Pan
2023-04-27 17:49 ` [PATCH v5 5/7] iommu/vt-d: Prepare PASID attachment beyond RID_PASID Jacob Pan
2023-05-03 6:49 ` Baolu Lu
2023-05-04 21:53 ` Jacob Pan
2023-04-27 17:49 ` [PATCH v5 6/7] iommu/vt-d: Implement set_dev_pasid domain op Jacob Pan
2023-05-03 7:26 ` Baolu Lu
2023-05-04 23:03 ` Jacob Pan
2023-05-05 2:58 ` Baolu Lu
2023-05-05 20:32 ` Jacob Pan
2023-04-27 17:49 ` [PATCH v5 7/7] dmaengine/idxd: Re-enable kernel workqueue under DMA API Jacob Pan
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=20230504142633.1a7e78ae@jacob-builder \
--to=jacob.jun.pan@linux.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=fenghua.yu@intel.com \
--cc=iommu@lists.linux.dev \
--cc=jgg@nvidia.com \
--cc=joro@8bytes.org \
--cc=kevin.tian@intel.com \
--cc=linux-kernel@vger.kernel.org \
--cc=narayan.ranganathan@intel.com \
--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).