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Date:   Tue, 10 Jan 2023 14:56:52 +0100
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To:     Jason Gunthorpe <jgg@nvidia.com>
Cc:     Baolu Lu <baolu.lu@linux.intel.com>,
        Alex Deucher <alexander.deucher@amd.com>,
        "Pan, Xinhui" <Xinhui.Pan@amd.com>,
        Vasant Hegde <vasant.hegde@amd.com>,
        Matt Fagnani <matt.fagnani@bell.net>,
        Thorsten Leemhuis <regressions@leemhuis.info>,
        Joerg Roedel <jroedel@suse.de>,
        "iommu@lists.linux.dev" <iommu@lists.linux.dev>,
        LKML <linux-kernel@vger.kernel.org>,
        "regressions@lists.linux.dev" <regressions@lists.linux.dev>,
        Linux PCI <linux-pci@vger.kernel.org>,
        Bjorn Helgaas <bhelgaas@google.com>,
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From:   =?UTF-8?Q?Christian_K=c3=b6nig?= <christian.koenig@amd.com>
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Am 10.01.23 um 14:51 schrieb Jason Gunthorpe:
> On Tue, Jan 10, 2023 at 02:45:30PM +0100, Christian König wrote:
>
>> Since this is a device integrated in the CPU it could be that the ACS/ATS
>> functionalities are controlled by the BIOS and can be enabled/disabled
>> there. But this should always enable/disable both.
> This sounds like a GPU driver bug then, it should tolerate PASID being
> unavailable because of BIOS issues/whatever and not black screen on
> boot?

Yeah, potentially. Could I get a full "sudo lspci -vvvv -s $bus_id" + 
dmesg of that device?

Thanks,
Christian.

>
> Jason