Re: [PATCH RFTv1 3/3] iommu/arm-smmu-v3: Support PRI Page Request
From: Nicolin Chen
Date: Wed Mar 11 2026 - 13:57:00 EST
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