diff options
| author | Maciej W. Rozycki <macro@orcam.me.uk> | 2023-06-11 20:19:19 +0300 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2023-06-20 18:58:53 +0300 |
| commit | 33a176abcc4cd4ed3d65512ed96d7b73f2565ed7 (patch) | |
| tree | 2281d730dacc3f216bd4b019427b96ddb062735c /drivers/pci/pcie | |
| parent | 07a8d698de50c4740ac6f709c43e23a6da6e4dbc (diff) | |
| download | linux-33a176abcc4cd4ed3d65512ed96d7b73f2565ed7.tar.xz | |
PCI: Export PCIe link retrain timeout
Convert LINK_RETRAIN_TIMEOUT from jiffies to milliseconds, accordingly
rename to PCIE_LINK_RETRAIN_TIMEOUT_MS, and make available via "pci.h" for
the PCI core to use. Use in pcie_wait_for_link_delay().
Link: https://lore.kernel.org/r/alpine.DEB.2.21.2305310030280.59226@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/pcie')
| -rw-r--r-- | drivers/pci/pcie/aspm.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c index eaaacf24e16c..721e5c787cf3 100644 --- a/drivers/pci/pcie/aspm.c +++ b/drivers/pci/pcie/aspm.c @@ -90,8 +90,6 @@ static const char *policy_str[] = { [POLICY_POWER_SUPERSAVE] = "powersupersave" }; -#define LINK_RETRAIN_TIMEOUT HZ - /* * The L1 PM substate capability is only implemented in function 0 in a * multi function device. @@ -198,14 +196,14 @@ static void pcie_clkpm_cap_init(struct pcie_link_state *link, int blacklist) * @pdev: Device whose link to wait for. * * Return TRUE if successful, or FALSE if training has not completed - * within LINK_RETRAIN_TIMEOUT jiffies. + * within PCIE_LINK_RETRAIN_TIMEOUT_MS milliseconds. */ static bool pcie_wait_for_link_status(struct pci_dev *pdev) { unsigned long end_jiffies; u16 lnksta; - end_jiffies = jiffies + LINK_RETRAIN_TIMEOUT; + end_jiffies = jiffies + msecs_to_jiffies(PCIE_LINK_RETRAIN_TIMEOUT_MS); do { pcie_capability_read_word(pdev, PCI_EXP_LNKSTA, &lnksta); if (!(lnksta & PCI_EXP_LNKSTA_LT)) |