Am 18.02.25 um 10:58 schrieb Lazar, Lijo: > On 2/18/2025 1:33 PM, Christian König wrote: >> Am 17.02.25 um 17:04 schrieb Mario Limonciello: >>> On 2/17/2025 10:00, Alex Deucher wrote: >>>> On Mon, Feb 17, 2025 at 10:45 AM Alex Deucher <alexdeuc...@gmail.com> >>>> wrote: >>>>> On Mon, Feb 17, 2025 at 10:38 AM Christian König >>>>> <christian.koe...@amd.com> wrote: >>>>>> Am 17.02.25 um 16:10 schrieb Alex Deucher: >>>>>>> There was a quirk added to add a workaround for a Sapphire >>>>>>> RX 5600 XT Pulse. However, the quirk only checks the vendor >>>>>>> ids and not the subsystem ids. The quirk really should >>>>>>> have checked the subsystem vendor and device ids as now >>>>>>> this quirk gets applied to all RX 5600 and it seems to >>>>>>> cause problems on some Dell laptops. Add a subsystem vendor >>>>>>> id check to limit the quirk to Sapphire boards. >>>>>> That's not correct. The issue is present on all RX 5600 boards, not just >>>>>> the Sapphire ones. >>>>> I suppose the alternative would be to disable resizing on the >>>>> problematic DELL systems only. >>>> How about this attached patch instead? >>> JFYI Typo in the commit message: >>> >>> s,casused,caused, >> With that fixed feel free to add my rb. It's just that the Dell systems are >> unstable even without the resizing. >> >> The resizing just makes it more likely to hit the issue because ti massively >> improves performance on the RX 5600 boards. >> > As a workaround, from the thread, the most reliable one seems to be to > disable runpm on the device.
Yeah, really good point. Actually trying to fix the underlying issue is my strong preference as well. Regards, Christian. > > Thanks, > Lijo > >> Regards, >> Christian. >> >>>> Alex >>>> >>>>>> The problems with the Dell laptops are most likely the general >>>>>> instability of the RX 5600 again which this quirk just make more obvious >>>>>> because of the performance improvement. >>>>>> >>>>>> Do you have a specific bug report for the Dell laptops? >>>>>> >>>>>> Regards, >>>>>> Christian. >>>>>> >>>>>>> Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/1707 >>>>> ^^^ this bug report >>>>> >>>>> Alex >>>>> >>>>> >>>>>>> Fixes: 907830b0fc9e ("PCI: Add a REBAR size quirk for Sapphire RX 5600 >>>>>>> XT Pulse") >>>>>>> Signed-off-by: Alex Deucher <alexander.deuc...@amd.com> >>>>>>> Cc: Christian König <christian.koe...@amd.com> >>>>>>> Cc: Bjorn Helgaas <bhelg...@google.com> >>>>>>> Cc: Nirmoy Das <nirmoy.ai...@gmail.com> >>>>>>> --- >>>>>>> drivers/pci/pci.c | 1 + >>>>>>> 1 file changed, 1 insertion(+) >>>>>>> >>>>>>> diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c >>>>>>> index 225a6cd2e9ca3..dec917636974e 100644 >>>>>>> --- a/drivers/pci/pci.c >>>>>>> +++ b/drivers/pci/pci.c >>>>>>> @@ -3766,6 +3766,7 @@ u32 pci_rebar_get_possible_sizes(struct pci_dev >>>>>>> *pdev, int bar) >>>>>>> >>>>>>> /* Sapphire RX 5600 XT Pulse has an invalid cap dword for BAR 0 >>>>>>> */ >>>>>>> if (pdev->vendor == PCI_VENDOR_ID_ATI && pdev->device == 0x731f >>>>>>> && >>>>>>> + pdev->subsystem_vendor == 0x1da2 && >>>>>> >>>>>> >>>>>> >>>>>>> bar == 0 && cap == 0x700) >>>>>>> return 0x3f00; >>>>>>>
