This is a board developed by my company. Subsystem-ID is ea50:0c19 or ea50:cc10 (depending on which particular carrier board the compute module is attached to), however we haven´t managed yet to enter this Subsystem-ID to every PCI-Device in the system, because of missing means to do that by our UEFI-FW. This might will change if we update to latest AGESA version. -----Original Message----- From: Will Deacon <will@xxxxxxxxxx> Sent: Montag, 23. November 2020 23:34 To: Deucher, Alexander <Alexander.Deucher@xxxxxxx> Cc: linux-kernel@xxxxxxxxxxxxxxx; linux-pci@xxxxxxxxxxxxxxx; iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx; Bjorn Helgaas <bhelgaas@xxxxxxxxxx>; Merger, Edgar [AUTOSOL/MAS/AUGS] <Edgar.Merger@xxxxxxxxxxx>; Joerg Roedel <jroedel@xxxxxxx>; Kuehling, Felix <Felix.Kuehling@xxxxxxx> Subject: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken On Mon, Nov 23, 2020 at 09:04:14PM +0000, Deucher, Alexander wrote: > [AMD Public Use] > > > -----Original Message----- > > From: Will Deacon <will@xxxxxxxxxx> > > Sent: Monday, November 23, 2020 8:44 AM > > To: linux-kernel@xxxxxxxxxxxxxxx > > Cc: linux-pci@xxxxxxxxxxxxxxx; iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx; > > Will Deacon <will@xxxxxxxxxx>; Bjorn Helgaas <bhelgaas@xxxxxxxxxx>; > > Deucher, Alexander <Alexander.Deucher@xxxxxxx>; Edgar Merger > > <Edgar.Merger@xxxxxxxxxxx>; Joerg Roedel <jroedel@xxxxxxx> > > Subject: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken > > > > Edgar Merger reports that the AMD Raven GPU does not work reliably > > on his system when the IOMMU is enabled: > > > > | [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx timeout, > > signaled seq=1, emitted seq=3 > > | [...] > > | amdgpu 0000:0b:00.0: GPU reset begin! > > | AMD-Vi: Completion-Wait loop timed out > > | iommu ivhd0: AMD-Vi: Event logged [IOTLB_INV_TIMEOUT > > device=0b:00.0 address=0x38edc0970] > > > > This is indicative of a hardware/platform configuration issue so, > > since disabling ATS has been shown to resolve the problem, add a > > quirk to match this particular device while Edgar follows-up with AMD for more information. > > > > Cc: Bjorn Helgaas <bhelgaas@xxxxxxxxxx> > > Cc: Alex Deucher <alexander.deucher@xxxxxxx> > > Reported-by: Edgar Merger <Edgar.Merger@xxxxxxxxxxx> > > Suggested-by: Joerg Roedel <jroedel@xxxxxxx> > > Link: > > https://urldefense.proofpoint.com/v2/url?u=https-3A__nam11.safelinks.protection.outlook.com_-3Furl-3Dhttps-253A-252F-252Flore&d=DwIBAg&c=jOURTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-862rdSP13_P6LVp7j_9l1xmg&m=WjiRGepDgI7voSyaAJcvnvZb6gsvZ1fvcnR2tm6bGXg&s=O1nU-RafBXMAS7Mao5Gtu6o1Xkuj8fg4oHQs74TssuA&e= . > > kernel.org%2Flinux- > > iommu%2FMWHPR10MB1310F042A30661D4158520B589FC0%40MWHPR10M > > B1310.namprd10.prod.outlook.com&data=04%7C01%7Calexander.deuc > > her%40amd.com%7C1a883fe14d0c408e7d9508d88fb5df4e%7C3dd8961fe488 > > 4e608e11a82d994e183d%7C0%7C0%7C637417358593629699%7CUnknown%7 > > CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwi > > LCJXVCI6Mn0%3D%7C1000&sdata=TMgKldWzsX8XZ0l7q3%2BszDWXQJJ > > LOUfX5oGaoLN8n%2B8%3D&reserved=0 > > Signed-off-by: Will Deacon <will@xxxxxxxxxx> > > --- > > > > Hi all, > > > > Since Joerg is away at the moment, I'm posting this to try to make > > some progress with the thread in the Link: tag. > > + Felix > > What system is this? Can you provide more details? Does a sbios > update fix this? Disabling ATS for all Ravens will break GPU compute > for a lot of people. I'd prefer to just black list this particular > system (e.g., just SSIDs or revision) if possible. Cheers, Alex. I'll have to defer to Edgar for the details, as my understanding from the original thread over at: https://urldefense.proofpoint.com/v2/url?u=https-3A__lore.kernel.org_linux-2Diommu_MWHPR10MB1310CDB6829DDCF5EA84A14689150-40MWHPR10MB1310.namprd10.prod.outlook.com_&d=DwIBAg&c=jOURTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-862rdSP13_P6LVp7j_9l1xmg&m=WjiRGepDgI7voSyaAJcvnvZb6gsvZ1fvcnR2tm6bGXg&s=9qyuCqHeOGaY1sKjkzNN5A6ks6PNF7V2M2PPckHyFKk&e= is that this is a board developed by his company. Edgar -- please can you answer Alex's questions? Will
