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Tue, 24 Nov 2020 05:32:12 +0000 From: "Merger, Edgar [AUTOSOL/MAS/AUGS]" To: Will Deacon , "Deucher, Alexander" Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken Thread-Topic: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken Thread-Index: AQHWwdw3n5VLcueYHUSP0T6AMdoDgKnWTbwAgABu3qA= Date: Tue, 24 Nov 2020 05:32:12 +0000 Message-ID: References: <20201123134410.10648-1-will@kernel.org> <20201123223356.GC12069@willie-the-truck> In-Reply-To: <20201123223356.GC12069@willie-the-truck> Accept-Language: de-DE, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: kernel.org; dkim=none (message not signed) header.d=none;kernel.org; dmarc=none action=none header.from=emerson.com; x-originating-ip: [2a00:79c0:797:6b00:2523:54e2:cc0f:eaa4] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 2734ff5f-f7fd-4cf1-9117-08d8903a4be5 x-ms-traffictypediagnostic: CO1PR10MB4481: x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:883; 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charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" This is a board developed by my company. Subsystem-ID is ea50:0c19 or ea50:cc10 (depending on which particular carri= er board the compute module is attached to), however we haven=B4t managed y= et 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 upda= te to latest AGESA version. = -----Original Message----- From: Will Deacon = Sent: Montag, 23. November 2020 23:34 To: Deucher, Alexander Cc: linux-kernel@vger.kernel.org; linux-pci@vger.kernel.org; iommu@lists.li= nux-foundation.org; Bjorn Helgaas ; Merger, Edgar [AUT= OSOL/MAS/AUGS] ; Joerg Roedel ; = Kuehling, Felix 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 > > Sent: Monday, November 23, 2020 8:44 AM > > To: linux-kernel@vger.kernel.org > > Cc: linux-pci@vger.kernel.org; iommu@lists.linux-foundation.org; = > > Will Deacon ; Bjorn Helgaas ; = > > Deucher, Alexander ; Edgar Merger = > > ; Joerg Roedel > > 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=3D1, emitted seq=3D3 > > | [...] > > | 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=3D0b:00.0 address=3D0x38edc0970] > > = > > 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 f= or more information. > > = > > Cc: Bjorn Helgaas > > Cc: Alex Deucher > > Reported-by: Edgar Merger > > Suggested-by: Joerg Roedel > > Link: > > https://urldefense.proofpoint.com/v2/url?u=3Dhttps-3A__nam11.safelinks.= protection.outlook.com_-3Furl-3Dhttps-253A-252F-252Flore&d=3DDwIBAg&c=3DjOU= RTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=3DBJxhacqqa4K1PJGm6_-862rdSP13_P= 6LVp7j_9l1xmg&m=3DWjiRGepDgI7voSyaAJcvnvZb6gsvZ1fvcnR2tm6bGXg&s=3DO1nU-RafB= XMAS7Mao5Gtu6o1Xkuj8fg4oHQs74TssuA&e=3D . > > kernel.org%2Flinux- > > iommu%2FMWHPR10MB1310F042A30661D4158520B589FC0%40MWHPR10M > > B1310.namprd10.prod.outlook.com&data=3D04%7C01%7Calexander.deuc > > her%40amd.com%7C1a883fe14d0c408e7d9508d88fb5df4e%7C3dd8961fe488 > > 4e608e11a82d994e183d%7C0%7C0%7C637417358593629699%7CUnknown%7 > > CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwi > > LCJXVCI6Mn0%3D%7C1000&sdata=3DTMgKldWzsX8XZ0l7q3%2BszDWXQJJ > > LOUfX5oGaoLN8n%2B8%3D&reserved=3D0 > > Signed-off-by: Will Deacon > > --- > > = > > 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 understand= ing from the original thread over at: https://urldefense.proofpoint.com/v2/url?u=3Dhttps-3A__lore.kernel.org_linu= x-2Diommu_MWHPR10MB1310CDB6829DDCF5EA84A14689150-40MWHPR10MB1310.namprd10.p= rod.outlook.com_&d=3DDwIBAg&c=3DjOURTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo= &r=3DBJxhacqqa4K1PJGm6_-862rdSP13_P6LVp7j_9l1xmg&m=3DWjiRGepDgI7voSyaAJcvnv= Zb6gsvZ1fvcnR2tm6bGXg&s=3D9qyuCqHeOGaY1sKjkzNN5A6ks6PNF7V2M2PPckHyFKk&e=3D = is that this is a board developed by his company. Edgar -- please can you answer Alex's questions? Will _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu