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PCI: Initialize dev->link_active_reporting earlier

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Determine whether Data Link Layer Link Active Reporting is available before
calling any fixups so that the cached value can be used there and later on.

[bhelgaas: move to set_pcie_port_type() where other PCIe init is done]
Link: https://lore.kernel.org/r/alpine.DEB.2.21.2305310122210.59226@angie.orcam.me.uk
Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Maciej W. Rozycki 2023-06-11 18:19:27 +01:00 committed by Bjorn Helgaas
parent c6f54cf44c
commit 42adbdc74c
1 changed files with 5 additions and 1 deletions
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6
drivers/pci/probe.c
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@ -820,7 +820,6 @@ static void pci_set_bus_speed(struct pci_bus *bus)
pcie_capability_read_dword(bridge, PCI_EXP_LNKCAP, &linkcap);
bus->max_bus_speed = pcie_link_speed[linkcap & PCI_EXP_LNKCAP_SLS];
bridge->link_active_reporting = !!(linkcap & PCI_EXP_LNKCAP_DLLLARC);
pcie_capability_read_word(bridge, PCI_EXP_LNKSTA, &linksta);
pcie_update_link_speed(bus, linksta);
@ -1527,6 +1526,7 @@ void set_pcie_port_type(struct pci_dev *pdev)
{
int pos;
u16 reg16;
u32 reg32;
int type;
struct pci_dev *parent;
@ -1540,6 +1540,10 @@ void set_pcie_port_type(struct pci_dev *pdev)
pci_read_config_dword(pdev, pos + PCI_EXP_DEVCAP, &pdev->devcap);
pdev->pcie_mpss = FIELD_GET(PCI_EXP_DEVCAP_PAYLOAD, pdev->devcap);
pcie_capability_read_dword(pdev, PCI_EXP_LNKCAP, &reg32);
if (reg32 & PCI_EXP_LNKCAP_DLLLARC)
pdev->link_active_reporting = 1;
parent = pci_upstream_bridge(pdev);
if (!parent)
return;