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

Am 15 October 2025 um 02:27 pm, Christian Zigotzky [off-list ref] wrote:



quoted

On 15 October 2025 at 01:58 pm, Herve Codina [off-list ref] wrote:

Hi Christian,

quoted

On Wed, 15 Oct 2025 13:30:44 +0200
Christian Zigotzky [off-list ref] wrote:

Hello Herve,

quoted

quoted

quoted

On 15 October 2025 at 10:39 am, Herve Codina [off-list ref] wrote:

Hi All,

I also observed issues with the commit f3ac2ff14834 ("PCI/ASPM: Enable all
ClockPM and ASPM states for devicetree platforms")  

Thanks for reporting.

quoted

Also tried the quirk proposed in this discussion (quirk_disable_aspm_all)
an the quirk also fixes the timing issue.  

Where have you added quirk_disable_aspm_all?

--- 8< ---
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 214ed060ca1b..a3808ab6e92e 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c

@@ -2525,6 +2525,17 @@ 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);
+}
+
+/* LAN966x PCI board */
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_EFAR, 0x9660, 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

--- 8< ---

Best regards,
Hervé

It is the same patch, I use for my AMD Radeon cards.

I use

+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_ANY_ID, quirk_disable_aspm_all);

in this patch.

In my point of view we have to add a lot of other devices.

But if the computer does not boot, will the average user know that there is a problem with the power management and their graphics card?
I am unsure whether I can deliver the kernel to average users later on.

Thanks,
Christian