From: Jason Gunthorpe <jgg@nvidia.com>
To: Nicolin Chen <nicolinc@nvidia.com>
Cc: joro@8bytes.org, afael@kernel.org, bhelgaas@google.com,
alex@shazbot.org, will@kernel.org, robin.murphy@arm.com,
lenb@kernel.org, kevin.tian@intel.com, baolu.lu@linux.intel.com,
linux-arm-kernel@lists.infradead.org, iommu@lists.linux.dev,
linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org,
linux-pci@vger.kernel.org, kvm@vger.kernel.org,
patches@lists.linux.dev, pjaroszynski@nvidia.com,
vsethi@nvidia.com, helgaas@kernel.org, etzhao1900@gmail.com
Subject: Re: [PATCH v7 2/5] iommu: Tidy domain for iommu_setup_dma_ops()
Date: Tue, 25 Nov 2025 15:19:42 -0400 [thread overview]
Message-ID: <20251125191942.GD520526@nvidia.com> (raw)
In-Reply-To: <6e8aacd34b038e7534fc5cb3fa21ab31b1af01ad.1763775108.git.nicolinc@nvidia.com>
On Fri, Nov 21, 2025 at 05:57:29PM -0800, Nicolin Chen wrote:
> This function can only be called on the default_domain. Trivally pass it
> in. In all three existing cases, the default domain was just attached to
> the device.
>
> This avoids iommu_setup_dma_ops() calling iommu_get_domain_for_dev() that
> will be used by external callers.
>
> Suggested-by: Jason Gunthorpe <jgg@nvidia.com>
> Reviewed-by: Kevin Tian <kevin.tian@intel.com>
> Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
> Signed-off-by: Nicolin Chen <nicolinc@nvidia.com>
> ---
> drivers/iommu/dma-iommu.h | 5 +++--
> drivers/iommu/dma-iommu.c | 4 +---
> drivers/iommu/iommu.c | 6 +++---
> 3 files changed, 7 insertions(+), 8 deletions(-)
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Jason
next prev parent reply other threads:[~2025-11-25 19:19 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-22 1:57 [PATCH v7 0/5] Disable ATS via iommu during PCI resets Nicolin Chen
2025-11-22 1:57 ` [PATCH v7 1/5] iommu: Lock group->mutex in iommu_deferred_attach() Nicolin Chen
2025-11-26 12:55 ` Srivastava, Dheeraj Kumar
2025-11-26 16:16 ` Nicolin Chen
2025-11-26 16:19 ` Dheeraj Kumar Srivastava
2025-11-22 1:57 ` [PATCH v7 2/5] iommu: Tidy domain for iommu_setup_dma_ops() Nicolin Chen
2025-11-25 19:19 ` Jason Gunthorpe [this message]
2025-11-22 1:57 ` [PATCH v7 3/5] iommu: Add iommu_driver_get_domain_for_dev() helper Nicolin Chen
2025-11-25 19:21 ` Jason Gunthorpe
2025-11-22 1:57 ` [PATCH v7 4/5] iommu: Introduce pci_dev_reset_iommu_prepare/done() Nicolin Chen
2025-11-25 19:27 ` Jason Gunthorpe
2025-11-22 1:57 ` [PATCH v7 5/5] PCI: Suspend iommu function prior to resetting a device Nicolin Chen
2025-11-25 19:28 ` Jason Gunthorpe
2025-11-26 21:43 ` Bjorn Helgaas
2025-11-26 21:51 ` Nicolin Chen
2025-11-25 14:22 ` [PATCH v7 0/5] Disable ATS via iommu during PCI resets Jörg Rödel
2025-11-25 18:30 ` Nicolin Chen
2025-11-26 16:21 ` Srivastava, Dheeraj Kumar
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