> On 11 October 2025 at 07:36 pm, Manivannan Sadhasivam <[email protected]> wrote: > > Hi Lukas, > > Thanks for looping me in. The referenced commit forcefully enables ASPM on all > DT platforms as we decided to bite the bullet finally. > > Looks like the device (0000:01:00.0) doesn't play nice with ASPM even though > it > advertises ASPM capability. > > Christian, could you please test the below change and see if it fixes the > issue? > > diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c > index 214ed060ca1b..e006b0560b39 100644 > --- a/drivers/pci/quirks.c > +++ b/drivers/pci/quirks.c > @@ -2525,6 +2525,15 @@ static void quirk_disable_aspm_l0s_l1(struct pci_dev > *dev) > */ > DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ASMEDIA, 0x1080, > quirk_disable_aspm_l0s_l1); > > + > +static void quirk_disable_aspm_all(struct pci_dev *dev) > +{ > + pci_info(dev, "Disabling ASPM\n"); > + pci_disable_link_state(dev, PCIE_LINK_STATE_ALL); > +} > + > +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x6738, quirk_disable_aspm_all); > + > /* > * Some Pericom PCIe-to-PCI bridges in reverse mode need the PCIe Retrain > * Link bit cleared after starting the link retrain process to allow this > > > Going forward, we should be quirking the devices if they behave erratically. > > - Mani > > -- > மணிவண்ணன் சதாசிவம்
Hello Mani, > DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x6738, quirk_disable_aspm_all); Is this only for my AMD Radeon HD6870? My AMD Radeon HD5870 is also affected. And I tested it with my AMD Radeon HD5870. What would the line be for all AMD graphics cards? Thanks, Christian
