I do have also other problems with this unit, when IOMMU is enabled and pci=noats is not set as kernel parameter. [ 2004.265906] amdgpu 0000:0b:00.0: [drm:amdgpu_ib_ring_tests [amdgpu]] *ERROR* IB test failed on gfx (-110). [ 2004.266024] [drm:amdgpu_device_delayed_init_work_handler [amdgpu]] *ERROR* ib ring test failed (-110). -----Original Message----- From: Merger, Edgar [AUTOSOL/MAS/AUGS] Sent: Mittwoch, 25. November 2020 10:16 To: 'Deucher, Alexander' <Alexander.Deucher@xxxxxxx>; 'Huang, Ray' <Ray.Huang@xxxxxxx>; 'Kuehling, Felix' <Felix.Kuehling@xxxxxxx> Cc: 'Will Deacon' <will@xxxxxxxxxx>; 'linux-kernel@xxxxxxxxxxxxxxx' <linux-kernel@xxxxxxxxxxxxxxx>; 'linux-pci@xxxxxxxxxxxxxxx' <linux-pci@xxxxxxxxxxxxxxx>; 'iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx' <iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx>; 'Bjorn Helgaas' <bhelgaas@xxxxxxxxxx>; 'Joerg Roedel' <jroedel@xxxxxxx>; 'Zhu, Changfeng' <Changfeng.Zhu@xxxxxxx> Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken Remark: Systems with R1305G APU (which show the issue) have the following VGA-Controller: 0b:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Picasso (rev cf) Systems with V1404I APU (which do not show the issue) have the following VGA-Controller: 0b:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Raven Ridge [Radeon Vega Series / Radeon Vega Mobile Series] (rev 83) "rev cf" vs. "ref 83" is probably what you where referring to with PCI Revision ID. -----Original Message----- From: Merger, Edgar [AUTOSOL/MAS/AUGS] Sent: Mittwoch, 25. November 2020 07:05 To: 'Deucher, Alexander' <Alexander.Deucher@xxxxxxx>; Huang, Ray <Ray.Huang@xxxxxxx>; Kuehling, Felix <Felix.Kuehling@xxxxxxx> Cc: Will Deacon <will@xxxxxxxxxx>; linux-kernel@xxxxxxxxxxxxxxx; linux-pci@xxxxxxxxxxxxxxx; iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx; Bjorn Helgaas <bhelgaas@xxxxxxxxxx>; Joerg Roedel <jroedel@xxxxxxx>; Zhu, Changfeng <Changfeng.Zhu@xxxxxxx> Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken I see that problem only on systems that use a R1305G APU sudo cat /sys/kernel/debug/dri/0/amdgpu_firmware_info shows VCE feature version: 0, firmware version: 0x00000000 UVD feature version: 0, firmware version: 0x00000000 MC feature version: 0, firmware version: 0x00000000 ME feature version: 50, firmware version: 0x000000a3 PFP feature version: 50, firmware version: 0x000000bb CE feature version: 50, firmware version: 0x0000004f RLC feature version: 1, firmware version: 0x00000049 RLC SRLC feature version: 1, firmware version: 0x00000001 RLC SRLG feature version: 1, firmware version: 0x00000001 RLC SRLS feature version: 1, firmware version: 0x00000001 MEC feature version: 50, firmware version: 0x000001b5 MEC2 feature version: 50, firmware version: 0x000001b5 SOS feature version: 0, firmware version: 0x00000000 ASD feature version: 0, firmware version: 0x21000030 TA XGMI feature version: 0, firmware version: 0x00000000 TA RAS feature version: 0, firmware version: 0x00000000 SMC feature version: 0, firmware version: 0x00002527 SDMA0 feature version: 41, firmware version: 0x000000a9 VCN feature version: 0, firmware version: 0x0110901c DMCU feature version: 0, firmware version: 0x00000001 VBIOS version: 113-RAVEN2-117 We are also using V1404I APU on the same boards and I haven´t seen the issue on those boards These boards give me slightly different info: sudo cat /sys/kernel/debug/dri/0/amdgpu_firmware_info VCE feature version: 0, firmware version: 0x00000000 UVD feature version: 0, firmware version: 0x00000000 MC feature version: 0, firmware version: 0x00000000 ME feature version: 47, firmware version: 0x000000a2 PFP feature version: 47, firmware version: 0x000000b9 CE feature version: 47, firmware version: 0x0000004e RLC feature version: 1, firmware version: 0x00000213 RLC SRLC feature version: 1, firmware version: 0x00000001 RLC SRLG feature version: 1, firmware version: 0x00000001 RLC SRLS feature version: 1, firmware version: 0x00000001 MEC feature version: 47, firmware version: 0x000001ab MEC2 feature version: 47, firmware version: 0x000001ab SOS feature version: 0, firmware version: 0x00000000 ASD feature version: 0, firmware version: 0x21000013 TA XGMI feature version: 0, firmware version: 0x00000000 TA RAS feature version: 0, firmware version: 0x00000000 SMC feature version: 0, firmware version: 0x00001e5b SDMA0 feature version: 41, firmware version: 0x000000a9 VCN feature version: 0, firmware version: 0x0110901c DMCU feature version: 0, firmware version: 0x00000000 VBIOS version: 113-RAVEN-116 00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Root Complex 00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 IOMMU 00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge 00:01.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 PCIe GPP Bridge [6:0] 00:01.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Zeppelin Switch Upstream (PCIE SW.US) 00:01.4 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 PCIe GPP Bridge [6:0] 00:01.5 PCI bridge: Advanced Micro Devices, Inc. [AMD] Zeppelin Switch Upstream (PCIE SW.US) 00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge 00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Internal PCIe GPP Bridge 0 to Bus A 00:08.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Internal PCIe GPP Bridge 0 to Bus B 00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 61) 00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 51) 00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 0 00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 1 00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 2 00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 3 00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 4 00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 5 00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 6 00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 7 01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0e) 01:00.1 Serial controller: Realtek Semiconductor Co., Ltd. Device 816a (rev 0e) 01:00.2 Serial controller: Realtek Semiconductor Co., Ltd. Device 816b (rev 0e) 01:00.3 IPMI Interface: Realtek Semiconductor Co., Ltd. Device 816c (rev 0e) 01:00.4 USB controller: Realtek Semiconductor Co., Ltd. Device 816d (rev 0e) 02:00.0 Ethernet controller: Intel Corporation I210 Gigabit Network Connection (rev 03) 03:00.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2 6-Port/8-Lane Packet Switch 04:01.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2 6-Port/8-Lane Packet Switch 04:02.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2 6-Port/8-Lane Packet Switch 04:03.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2 6-Port/8-Lane Packet Switch 04:04.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2 6-Port/8-Lane Packet Switch 04:05.0 PCI bridge: Pericom Semiconductor PI7C9X2G608GP PCIe2 6-Port/8-Lane Packet Switch 06:00.0 Serial controller: Asix Electronics Corporation Device 9100 06:00.1 Serial controller: Asix Electronics Corporation Device 9100 07:00.0 Ethernet controller: Intel Corporation I210 Gigabit Network Connection (rev 03) 0a:00.0 Ethernet controller: Intel Corporation I210 Gigabit Network Connection (rev 03) 0b:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Picasso (rev cf) 0b:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Raven/Raven2/Fenghuang HDMI/DP Audio Controller 0b:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 10h-1fh) Platform Security Processor 0b:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Raven2 USB 3.1 0b:00.5 Multimedia controller: Advanced Micro Devices, Inc. [AMD] Raven/Raven2/FireFlight/Renoir Audio Processor 0b:00.7 Non-VGA unclassified device: Advanced Micro Devices, Inc. [AMD] Raven/Raven2/Renoir Non-Sensor Fusion Hub KMDF driver 0c:00.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] (rev 61) PCI Revision ID is 06 I believe. Got that from this lspci -xx 00:01.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Zeppelin Switch Upstream (PCIE SW.US) 00: 22 10 5d 14 07 04 10 00 00 00 04 06 10 00 81 00 10: 00 00 00 00 00 00 00 00 00 02 02 00 f1 01 00 00 20: e0 fc e0 fc f1 ff 01 00 00 00 00 00 00 00 00 00 30: 00 00 00 00 50 00 00 00 00 00 00 00 ff 00 12 00 40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 50: 01 58 03 c8 00 00 00 00 10 a0 42 01 22 80 00 00 60: 1f 29 00 00 13 38 73 03 42 00 11 30 00 00 04 00 70: 00 00 40 01 18 00 01 00 00 00 00 00 bf 01 70 00 80: 06 00 00 00 0e 00 00 00 03 00 01 00 00 00 00 00 90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 a0: 05 c0 81 00 00 00 e0 fe 00 00 00 00 00 00 00 00 b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 c0: 0d c8 00 00 22 10 34 12 08 00 03 a8 00 00 00 00 d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 e0: 00 00 00 00 4c 8a 05 00 00 00 00 00 00 00 00 00 f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -----Original Message----- From: Deucher, Alexander <Alexander.Deucher@xxxxxxx> Sent: Dienstag, 24. November 2020 16:06 To: Merger, Edgar [AUTOSOL/MAS/AUGS] <Edgar.Merger@xxxxxxxxxxx>; Huang, Ray <Ray.Huang@xxxxxxx>; Kuehling, Felix <Felix.Kuehling@xxxxxxx> Cc: Will Deacon <will@xxxxxxxxxx>; linux-kernel@xxxxxxxxxxxxxxx; linux-pci@xxxxxxxxxxxxxxx; iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx; Bjorn Helgaas <bhelgaas@xxxxxxxxxx>; Joerg Roedel <jroedel@xxxxxxx>; Zhu, Changfeng <Changfeng.Zhu@xxxxxxx> Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken [AMD Public Use] > -----Original Message----- > From: Merger, Edgar [AUTOSOL/MAS/AUGS] <Edgar.Merger@xxxxxxxxxxx> > Sent: Tuesday, November 24, 2020 2:29 AM > To: Huang, Ray <Ray.Huang@xxxxxxx>; Kuehling, Felix > <Felix.Kuehling@xxxxxxx> > Cc: Will Deacon <will@xxxxxxxxxx>; Deucher, Alexander > <Alexander.Deucher@xxxxxxx>; linux-kernel@xxxxxxxxxxxxxxx; linux- > pci@xxxxxxxxxxxxxxx; iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx; Bjorn Helgaas > <bhelgaas@xxxxxxxxxx>; Joerg Roedel <jroedel@xxxxxxx>; Zhu, Changfeng > <Changfeng.Zhu@xxxxxxx> > Subject: RE: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as > broken > > Module Version : PiccasoCpu 10 > AGESA Version : PiccasoPI 100A > > I did not try to enter the system in any other way (like via ssh) than > via Desktop. You can get this information from the amdgpu driver. E.g., sudo cat /sys/kernel/debug/dri/0/amdgpu_firmware_info . Also what is the PCI revision id of your chip (from lspci)? Also are you just seeing this on specific versions of the sbios? Thanks, Alex > > -----Original Message----- > From: Huang Rui <ray.huang@xxxxxxx> > Sent: Dienstag, 24. November 2020 07:43 > To: Kuehling, Felix <Felix.Kuehling@xxxxxxx> > Cc: Will Deacon <will@xxxxxxxxxx>; Deucher, Alexander > <Alexander.Deucher@xxxxxxx>; linux-kernel@xxxxxxxxxxxxxxx; linux- > pci@xxxxxxxxxxxxxxx; iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx; Bjorn Helgaas > <bhelgaas@xxxxxxxxxx>; Merger, Edgar [AUTOSOL/MAS/AUGS] > <Edgar.Merger@xxxxxxxxxxx>; Joerg Roedel <jroedel@xxxxxxx>; Changfeng > Zhu <changfeng.zhu@xxxxxxx> > Subject: [EXTERNAL] Re: [PATCH] PCI: Mark AMD Raven iGPU ATS as broken > > On Tue, Nov 24, 2020 at 06:51:11AM +0800, Kuehling, Felix wrote: > > On 2020-11-23 5:33 p.m., Will Deacon wrote: > > > 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.p > rotection.outlook.com_-3Furl-3Dhttps-253A-252F-252Furld&d=DwIFAw&c=jOU > RTkCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-862rdSP1 > 3_P6LVp7j_9l1xmg&m=MMI_EgCqeOX4EvIftpL7agRxJ-udp1CLokf2QWuzFgE&s=ZLdz6 > OgavzNn2vSzsgyL1IB6MbK7hPKavOYwbLhyTPU&e= > efense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps- > 3A__lore%26d%3DDwIDAw%26c%3DjOURTkCZzT8tVB5xPEYIm3YJGoxoTaQs > QPzPKJGaWbo%26r%3DBJxhacqqa4K1PJGm6_- > 862rdSP13_P6LVp7j_9l1xmg%26m%3DlNXu2xwvyxEZ3PzoVmXMBXXS55jsmf > DicuQFJqkIOH4%26s%3D_5VDNCRQdA7AhsvvZ3TJJtQZ2iBp9c9tFHIleTYT_ZM > %26e%3D&data=04%7C01%7CAlexander.Deucher%40amd.com%7C6d5f > a241f9634692c03908d8904a942c%7C3dd8961fe4884e608e11a82d994e183d%7 > C0%7C0%7C637417997272974427%7CUnknown%7CTWFpbGZsb3d8eyJWIjoi > MC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C100 > 0&sdata=OEgYlw%2F1YP0C%2FnWBRQUxwBH56mGOJxYMWSQ%2Fj1Y > 9f6Q%3D&reserved=0 . > > >>> kernel.org/linux- > > >>> > iommu/MWHPR10MB1310F042A30661D4158520B589FC0@MWHPR10M > > >>> B1310.namprd10.prod.outlook.com > > >>> > 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. > > > > +Ray > > > > There are already many systems where the IOMMU is disabled in the > > BIOS, or the CRAT table reporting the APU compute capabilities is > > broken. Ray has been working on a fallback to make APUs behave like > > dGPUs on such systems. That should also cover this case where ATS is > > blacklisted. That said, it affects the programming model, because we > > don't support the unified and coherent memory model on dGPUs like we > > do on APUs with IOMMUv2. So it would be good to make the conditions > > for this workaround as narrow as possible. > > Yes, besides the comments from Alex and Felix, may we get your > firmware version (SMC firmware which is from SBIOS) and device id? > > > >>> | [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx > > >>> timeout, signaled seq=1, emitted seq=3 > > It looks only gfx ib test passed, and fails to lanuch desktop, am I right? > > We would like to see whether it is Raven, Raven kicker (new Raven), or > Picasso. In our side, per the internal test result, we didn't see the > similiar issue on Raven kicker and Picasso platform. > > Thanks, > Ray > > > > > These are the relevant changes in KFD and Thunk for reference: > > > > ### KFD ### > > > > commit 914913ab04dfbcd0226ecb6bc99d276832ea2908 > > Author: Huang Rui <ray.huang@xxxxxxx> > > Date: Tue Aug 18 14:54:23 2020 +0800 > > > > drm/amdkfd: implement the dGPU fallback path for apu (v6) > > > > We still have a few iommu issues which need to address, so > > force raven > > as "dgpu" path for the moment. > > > > This is to add the fallback path to bypass IOMMU if IOMMU v2 is > > disabled > > or ACPI CRAT table not correct. > > > > v2: Use ignore_crat parameter to decide whether it will go with > > IOMMUv2. > > v3: Align with existed thunk, don't change the way of raven, > > only renoir > > will use "dgpu" path by default. > > v4: don't update global ignore_crat in the driver, and revise > > fallback > > function if CRAT is broken. > > v5: refine acpi crat good but no iommu support case, and rename > > the > > title. > > v6: fix the issue of dGPU initialized firstly, just modify the > > report > > value in the node_show(). > > > > Signed-off-by: Huang Rui <ray.huang@xxxxxxx> > > Reviewed-by: Felix Kuehling <Felix.Kuehling@xxxxxxx> > > Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx> > > > > ### Thunk ### > > > > commit e32482fa4b9ca398c8bdc303920abfd672592764 > > Author: Huang Rui <ray.huang@xxxxxxx> > > Date: Tue Aug 18 18:54:05 2020 +0800 > > > > libhsakmt: remove is_dgpu flag in the hsa_gfxip_table > > > > Whether use dgpu path will check the props which exposed from kernel. > > We won't need hard code in the ASIC table. > > > > Signed-off-by: Huang Rui <ray.huang@xxxxxxx> > > Change-Id: I0c018a26b219914a41197ff36dbec7a75945d452 > > > > commit 7c60f6d912034aa67ed27b47a29221422423f5cc > > Author: Huang Rui <ray.huang@xxxxxxx> > > Date: Thu Jul 30 10:22:23 2020 +0800 > > > > libhsakmt: implement the method that using flag which exposed > > by kfd to configure is_dgpu > > > > KFD already implemented the fallback path for APU. Thunk will > > use flag > > which exposed by kfd to configure is_dgpu instead of hardcode before. > > > > Signed-off-by: Huang Rui <ray.huang@xxxxxxx> > > Change-Id: I445f6cf668f9484dd06cd9ae1bb3cfe7428ec7eb > > > > Regards, > > Felix > > > > > > > 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__nam11.safelinks.p > rotection.outlook.com_-3Furl-3Dhttps-253A-252F-252Fur&d=DwIFAw&c=jOURT > kCZzT8tVB5xPEYIm3YJGoxoTaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_-862rdSP13_ > P6LVp7j_9l1xmg&m=MMI_EgCqeOX4EvIftpL7agRxJ-udp1CLokf2QWuzFgE&s=IPZRolk > y3TYlbWPsOkY37MbDdzwhc1b_LaE6JkaOkOo&e= > > > ldefense.proofpoint.com%2Fv2%2Furl%3Fu%3Dhttps- > 3A__lore.kernel.org&a > > > > mp;data=04%7C01%7CAlexander.Deucher%40amd.com%7C6d5fa241f963469 > 2c039 > > > > 08d8904a942c%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C63741 > 79972 > > > > 72974427%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoi > V2luMzI > > > > iLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=iKTPucGQqcRXET > QZiQz > > > j90WdJeCYDytdZHJ1ZiUyR%2FM%3D&reserved=0 > > > _linux-2Diommu_MWHPR10MB1310CDB6829DDCF5EA84A14689150- > 40MWHPR10MB131 > > > > 0.namprd10.prod.outlook.com_&d=DwIDAw&c=jOURTkCZzT8tVB5xPEYIm3Y > JGoxo > > > TaQsQPzPKJGaWbo&r=BJxhacqqa4K1PJGm6_- > 862rdSP13_P6LVp7j_9l1xmg&m=lNXu > > > > 2xwvyxEZ3PzoVmXMBXXS55jsmfDicuQFJqkIOH4&s=dsAVVJbD7gJIj3ctZpnnU > 60y21 > > > ijWZmZ8xmOK1cO_O0&e= > > > > > > is that this is a board developed by his company. > > > > > > Edgar -- please can you answer Alex's questions? > > > > > > Will
