From: Michael Shavit <mshavit@google.com>
To: Nicolin Chen <nicolinc@nvidia.com>
Cc: Will Deacon <will@kernel.org>,
Robin Murphy <robin.murphy@arm.com>,
Joerg Roedel <joro@8bytes.org>,
jean-philippe@linaro.org, jgg@nvidia.com,
baolu.lu@linux.intel.com, linux-arm-kernel@lists.infradead.org,
iommu@lists.linux.dev, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v4 07/13] iommu/arm-smmu-v3: Keep track of attached ssids
Date: Fri, 21 Jul 2023 14:48:23 +0800 [thread overview]
Message-ID: <CAKHBV27FbpJHoPC5_8mCYHmhEbCaCE7st_-qzPv0uQYSH3RC9g@mail.gmail.com> (raw)
In-Reply-To: <ZK9cyDaFkAKc1SvJ@Asurada-Nvidia>
> And since we have a group of subdomains that are simply indexed
> by ssids, perhaps we can add an xarray to store a subdomain ptr
> along with an ssid, replacing the list?
Hmmmm, I think the only place where we search through the list for a
specific SSID is during remove_dev_pasid. We mostly use the list to
iterate over all the masters/ssids that this domain is attached to.
I'm not sure if moving to an xarray to optimize the remove_dev_pasid
call is worth it (at the cost of iterations which IIUC would become N
log(N))
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2023-07-21 6:49 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-21 6:37 [PATCH v4 00/13] Add PASID support to SMMUv3 unmanaged domains Michael Shavit
2023-06-21 6:37 ` [PATCH v4 01/13] iommu/arm-smmu-v3: Move ctx_desc out of s1_cfg Michael Shavit
2023-06-21 6:37 ` [PATCH v4 02/13] iommu/arm-smmu-v3: Add smmu_s1_cfg to smmu_master Michael Shavit
2023-07-13 1:22 ` Nicolin Chen
2023-07-13 8:34 ` Michael Shavit
2023-07-13 14:29 ` Jason Gunthorpe
2023-07-13 16:16 ` Michael Shavit
2023-07-13 16:34 ` Michael Shavit
2023-07-13 16:41 ` Jason Gunthorpe
2023-07-13 19:54 ` Nicolin Chen
2023-07-13 23:48 ` Jason Gunthorpe
2023-07-14 1:14 ` Nicolin Chen
2023-07-14 1:14 ` Nicolin Chen
2023-07-14 9:12 ` Michael Shavit
2023-07-14 11:58 ` Will Deacon
2023-07-14 12:50 ` Jason Gunthorpe
2023-07-14 8:02 ` Michael Shavit
2023-07-14 13:21 ` Jason Gunthorpe
2023-07-17 10:06 ` Michael Shavit
2023-07-17 12:29 ` Jason Gunthorpe
2023-07-18 8:56 ` Michael Shavit
2023-07-27 11:22 ` Michael Shavit
2023-07-27 11:54 ` Jason Gunthorpe
2023-07-27 14:04 ` Michael Shavit
2023-07-27 14:21 ` Jason Gunthorpe
2023-06-21 6:37 ` [PATCH v4 03/13] iommu/arm-smmu-v3: Refactor write_strtab_ent Michael Shavit
2023-07-13 1:41 ` Nicolin Chen
2023-06-21 6:37 ` [PATCH v4 04/13] iommu/arm-smmu-v3: Refactor write_ctx_desc Michael Shavit
2023-06-21 6:37 ` [PATCH v4 05/13] iommu/arm-smmu-v3: Use the master-owned s1_cfg Michael Shavit
2023-07-13 1:57 ` Nicolin Chen
2023-07-13 4:25 ` Nicolin Chen
2023-06-21 6:37 ` [PATCH v4 06/13] iommu/arm-smmu-v3: Simplify arm_smmu_enable_ats Michael Shavit
2023-06-21 6:37 ` [PATCH v4 07/13] iommu/arm-smmu-v3: Keep track of attached ssids Michael Shavit
2023-07-13 2:09 ` Nicolin Chen
2023-07-21 6:48 ` Michael Shavit [this message]
2023-07-27 4:44 ` Nicolin Chen
2023-07-13 4:45 ` Nicolin Chen
2023-07-14 9:30 ` Michael Shavit
2023-07-15 0:35 ` Nicolin Chen
2023-07-15 0:35 ` Nicolin Chen
2023-07-18 8:51 ` Michael Shavit
2023-06-21 6:37 ` [PATCH v4 08/13] iommu/arm-smmu-v3: Add helper for atc invalidation Michael Shavit
2023-06-21 6:37 ` [PATCH v4 09/13] iommu/arm-smmu-v3: Implement set_dev_pasid Michael Shavit
2023-06-23 0:32 ` Nicolin Chen
2023-06-26 2:33 ` Michael Shavit
2023-06-26 18:14 ` Nicolin Chen
2023-06-28 13:36 ` Michael Shavit
2023-07-13 8:44 ` Michael Shavit
2023-06-21 6:37 ` [PATCH v4 10/13] iommu/arm-smmu-v3-sva: Remove bond refcount Michael Shavit
2023-06-21 6:37 ` [PATCH v4 11/13] iommu/arm-smmu-v3-sva: Clean unused iommu_sva Michael Shavit
2023-06-21 6:37 ` [PATCH v4 12/13] iommu/arm-smmu-v3-sva: Remove arm_smmu_bond Michael Shavit
2023-07-13 8:41 ` Michael Shavit
2023-06-21 6:37 ` [PATCH v4 13/13] iommu/arm-smmu-v3-sva: Add check when enabling sva Michael Shavit
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=CAKHBV27FbpJHoPC5_8mCYHmhEbCaCE7st_-qzPv0uQYSH3RC9g@mail.gmail.com \
--to=mshavit@google.com \
--cc=baolu.lu@linux.intel.com \
--cc=iommu@lists.linux.dev \
--cc=jean-philippe@linaro.org \
--cc=jgg@nvidia.com \
--cc=joro@8bytes.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=nicolinc@nvidia.com \
--cc=robin.murphy@arm.com \
--cc=will@kernel.org \
/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).