[PPC] Boot problems after the pci-v6.18-changes

[Christian Zigotzky]

On 13 October 2025 at 07:23 am, Christian Zigotzky wrote:
> Better for testing (All AMD graphics cards):
>
> 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, PCI_ANY_ID, 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
This patch has solved the boot issue but I get the following error 
messages again and again:

[  186.765644] pcieport 0001:00:00.0: AER: Correctable error message 
received from 0001:00:00.0 (no details found
[  187.789034] pcieport 0001:00:00.0: AER: Correctable error message 
received from 0001:00:00.0
[  187.789052] pcieport 0001:00:00.0: PCIe Bus Error: 
severity=Correctable, type=Data Link Layer, (Transmitter ID)
[  187.789058] pcieport 0001:00:00.0:   device [1957:0451] error 
status/mask=00001000/00002000
[  187.789066] pcieport 0001:00:00.0:    [12] Timeout
[  187.789120] pcieport 0001:00:00.0: AER: Correctable error message 
received from 0001:00:00.0 (no details found
[  187.789169] pcieport 0001:00:00.0: AER: Correctable error message 
received from 0001:00:00.0 (no details found
[  187.789218] pcieport 0001:00:00.0: AER: Correctable error message 
received from 0001:00:00.0 (no details found
[  188.812514] pcieport 0001:00:00.0: AER: Correctable error message 
received from 0001:00:00.0

I don't get these messages with the revert patch. [1]

-- Christian

[1] https://github.com/chzigotzky/kernels/blob/main/patches/e5500/pci.patch