From: Jason Gunthorpe <jgg@nvidia.com>
To: Baolu Lu <baolu.lu@linux.intel.com>
Cc: Nicolin Chen <nicolinc@nvidia.com>,
robin.murphy@arm.com, joro@8bytes.org, bhelgaas@google.com,
will@kernel.org, robin.clark@oss.qualcomm.com,
yong.wu@mediatek.com, matthias.bgg@gmail.com,
angelogioacchino.delregno@collabora.com,
thierry.reding@gmail.com, vdumpa@nvidia.com,
jonathanh@nvidia.com, rafael@kernel.org, lenb@kernel.org,
kevin.tian@intel.com, yi.l.liu@intel.com,
linux-arm-kernel@lists.infradead.org, iommu@lists.linux.dev,
linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org,
linux-mediatek@lists.infradead.org, linux-tegra@vger.kernel.org,
linux-acpi@vger.kernel.org, linux-pci@vger.kernel.org,
patches@lists.linux.dev, pjaroszynski@nvidia.com,
vsethi@nvidia.com, helgaas@kernel.org, etzhao1900@gmail.com
Subject: Re: [PATCH v3 3/5] iommu: Add iommu_get_domain_for_dev_locked() helper
Date: Mon, 18 Aug 2025 11:40:51 -0300 [thread overview]
Message-ID: <20250818144051.GP802098@nvidia.com> (raw)
In-Reply-To: <aeb04f91-ffce-4092-8dbc-17d116cd7c7e@linux.intel.com>
On Fri, Aug 15, 2025 at 01:28:02PM +0800, Baolu Lu wrote:
> Given that iommu_group->mutex is transparent to the iommu driver, how
> about
It is not actually transparent, alot of drivers are implicitly
assuming that the core single threads their struct device for alot of
the ops callbacks and we exposed the lockdep test to the drivers to
help the document this.
Jason
next prev parent reply other threads:[~2025-08-18 14:40 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-11 22:59 [PATCH v3 0/5] Disable ATS via iommu during PCI resets Nicolin Chen
2025-08-11 22:59 ` [PATCH v3 1/5] iommu: Lock group->mutex in iommu_deferred_attach Nicolin Chen
2025-08-15 5:09 ` Baolu Lu
2025-08-15 8:27 ` Tian, Kevin
2025-08-15 8:24 ` Tian, Kevin
2025-08-15 19:26 ` Nicolin Chen
2025-08-18 14:17 ` Jason Gunthorpe
2025-08-18 17:45 ` Nicolin Chen
2025-08-18 18:09 ` Jason Gunthorpe
2025-08-18 18:29 ` Nicolin Chen
2025-08-11 22:59 ` [PATCH v3 2/5] iommu: Pass in gdev to __iommu_device_set_domain Nicolin Chen
2025-08-15 5:18 ` Baolu Lu
2025-08-15 8:29 ` Tian, Kevin
2025-08-11 22:59 ` [PATCH v3 3/5] iommu: Add iommu_get_domain_for_dev_locked() helper Nicolin Chen
2025-08-15 5:28 ` Baolu Lu
2025-08-15 18:48 ` Nicolin Chen
2025-08-18 14:40 ` Jason Gunthorpe [this message]
2025-08-19 2:09 ` Baolu Lu
2025-08-15 8:55 ` Tian, Kevin
2025-08-15 18:45 ` Nicolin Chen
2025-08-21 8:07 ` Tian, Kevin
2025-08-21 14:41 ` Nicolin Chen
2025-08-31 23:24 ` Nicolin Chen
2025-08-18 14:39 ` Jason Gunthorpe
2025-08-18 17:22 ` Nicolin Chen
2025-08-18 23:42 ` Jason Gunthorpe
2025-08-19 5:09 ` Nicolin Chen
2025-08-19 12:52 ` Jason Gunthorpe
2025-08-19 17:22 ` Nicolin Chen
2025-08-21 13:13 ` Jason Gunthorpe
2025-08-21 15:22 ` Nicolin Chen
2025-08-21 18:37 ` Jason Gunthorpe
2025-08-22 5:11 ` Nicolin Chen
2025-08-21 8:11 ` Tian, Kevin
2025-08-21 13:14 ` Jason Gunthorpe
2025-08-22 9:45 ` Tian, Kevin
2025-08-22 13:21 ` Jason Gunthorpe
2025-08-11 22:59 ` [PATCH v3 4/5] iommu: Introduce iommu_dev_reset_prepare() and iommu_dev_reset_done() Nicolin Chen
2025-08-15 5:49 ` Baolu Lu
2025-08-15 20:10 ` Nicolin Chen
2025-08-15 9:14 ` Tian, Kevin
2025-08-15 19:45 ` Nicolin Chen
2025-08-11 22:59 ` [PATCH v3 5/5] pci: Suspend iommu function prior to resetting a device Nicolin Chen
2025-08-19 14:12 ` Ethan Zhao
2025-08-19 21:59 ` Nicolin Chen
2025-08-20 3:18 ` Ethan Zhao
2025-08-22 6:14 ` Nicolin Chen
2025-08-21 13:07 ` Jason Gunthorpe
2025-08-22 6:35 ` Nicolin Chen
2025-08-22 14:08 ` Jason Gunthorpe
2025-08-22 18:50 ` Nicolin Chen
2025-08-28 12:51 ` Jason Gunthorpe
2025-08-28 15:08 ` Nicolin Chen
2025-08-28 18:46 ` Jason Gunthorpe
2025-08-28 19:35 ` Nicolin Chen
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