diff options
| author | Maciej W. Rozycki <macro@orcam.me.uk> | 2023-06-11 18:19:27 +0100 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2023-06-14 17:58:12 -0500 |
| commit | 42adbdc74c9a62ad3587be4d8a18941711023673 (patch) | |
| tree | b0c1a0d5f2120dc8f0ed97e5f80f8865e46fcc04 /drivers/pci/probe.c | |
| parent | c6f54cf44c3d05510f8f292a1782105c087797ba (diff) | |
| download | linux-42adbdc74c9a62ad3587be4d8a18941711023673.tar.gz | |
PCI: Initialize dev->link_active_reporting earlier
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>
Diffstat (limited to 'drivers/pci/probe.c')
| -rw-r--r-- | drivers/pci/probe.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 0b2826c4a832d..782925bac64ab 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -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, ®32); + if (reg32 & PCI_EXP_LNKCAP_DLLLARC) + pdev->link_active_reporting = 1; + parent = pci_upstream_bridge(pdev); if (!parent) return; |