From: Nicolin Chen <nicolinc@nvidia.com>
To: Shameer Kolothum Thodi <skolothumtho@nvidia.com>
Cc: "will@kernel.org" <will@kernel.org>,
"robin.murphy@arm.com" <robin.murphy@arm.com>,
Jason Gunthorpe <jgg@nvidia.com>,
"joro@8bytes.org" <joro@8bytes.org>,
"praan@google.com" <praan@google.com>,
Malak Marrid <mmarrid@nvidia.com>,
"kees@kernel.org" <kees@kernel.org>,
"Alexander.Grest@microsoft.com" <Alexander.Grest@microsoft.com>,
"baolu.lu@linux.intel.com" <baolu.lu@linux.intel.com>,
"smostafa@google.com" <smostafa@google.com>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"iommu@lists.linux.dev" <iommu@lists.linux.dev>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH RFTv1 3/3] iommu/arm-smmu-v3: Support PRI Page Request
Date: Wed, 11 Mar 2026 10:56:07 -0700 [thread overview]
Message-ID: <abGst/9dQBzoYZJD@Asurada-Nvidia> (raw)
In-Reply-To: <CH3PR12MB7548107B5BF7ACF4C0568B26AB79A@CH3PR12MB7548.namprd12.prod.outlook.com>
On Mon, Mar 09, 2026 at 04:04:31AM -0700, Shameer Kolothum Thodi wrote:
> > Now, arm_smmu_page_response() can issue CMDQ_OP_PRI_RESP for page
> > requests
> > from the IOPF infrastructure. Decode the page requests from the PRI queue,
> > and report it to the IOPF infrastructure.
> >
> > This fills the final piece for PRI support.
>
> Do we also need pci_reset_pri()/pci_enable_pri() to enable PRI on the
> device side?
>
> Also, is there a check that the device advertises PCI PRI capability
> before calling iopf_queue_add_device()?
Yes and yes.. I will respin another version after a test.
Thanks
Nicolin
prev parent reply other threads:[~2026-03-11 17:56 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-03 20:13 [PATCH RFTv1 0/3] iommu/arm-smmu-v3: Add PRI support Nicolin Chen
2026-03-03 20:13 ` [PATCH RFTv1 1/3] iommu/arm-smmu-v3: Drain in-flight fault handlers Nicolin Chen
2026-03-06 23:12 ` Jason Gunthorpe
2026-03-06 23:45 ` Nicolin Chen
2026-03-03 20:13 ` [PATCH RFTv1 2/3] iommu/arm-smmu-v3: Submit CMDQ_OP_PRI_RESP for IOPF event Nicolin Chen
2026-03-03 20:13 ` [PATCH RFTv1 3/3] iommu/arm-smmu-v3: Support PRI Page Request Nicolin Chen
2026-03-09 11:04 ` Shameer Kolothum Thodi
2026-03-11 17:56 ` Nicolin Chen [this message]
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