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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-07 02:18:07 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-07 02:18:07 +0000 |
| commit | 6c080a1a353c6fc2590555ec7dd8982d1143d02d (patch) | |
| tree | 5fb60c5cd3d6bb6496650d1605a3c51d09be2bf1 /drivers/pci/pcie/aspm.c | |
| parent | Adding debian version 6.1.85-1. (diff) | |
| download | linux-6c080a1a353c6fc2590555ec7dd8982d1143d02d.tar.xz linux-6c080a1a353c6fc2590555ec7dd8982d1143d02d.zip | |
Merging upstream version 6.1.90.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/pci/pcie/aspm.c')
| -rw-r--r-- | drivers/pci/pcie/aspm.c | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c index 25736d408..cf4acea66 100644 --- a/drivers/pci/pcie/aspm.c +++ b/drivers/pci/pcie/aspm.c @@ -743,10 +743,10 @@ static void pcie_config_aspm_l1ss(struct pcie_link_state *link, u32 state) * in pcie_config_aspm_link(). */ if (enable_req & (ASPM_STATE_L1_1 | ASPM_STATE_L1_2)) { - pcie_capability_clear_and_set_word(child, PCI_EXP_LNKCTL, - PCI_EXP_LNKCTL_ASPM_L1, 0); - pcie_capability_clear_and_set_word(parent, PCI_EXP_LNKCTL, - PCI_EXP_LNKCTL_ASPM_L1, 0); + pcie_capability_clear_word(child, PCI_EXP_LNKCTL, + PCI_EXP_LNKCTL_ASPM_L1); + pcie_capability_clear_word(parent, PCI_EXP_LNKCTL, + PCI_EXP_LNKCTL_ASPM_L1); } val = 0; @@ -1055,8 +1055,11 @@ void pcie_aspm_exit_link_state(struct pci_dev *pdev) up_read(&pci_bus_sem); } -/* @pdev: the root port or switch downstream port */ -void pcie_aspm_pm_state_change(struct pci_dev *pdev) +/* + * @pdev: the root port or switch downstream port + * @locked: whether pci_bus_sem is held + */ +void pcie_aspm_pm_state_change(struct pci_dev *pdev, bool locked) { struct pcie_link_state *link = pdev->link_state; @@ -1066,12 +1069,14 @@ void pcie_aspm_pm_state_change(struct pci_dev *pdev) * Devices changed PM state, we should recheck if latency * meets all functions' requirement */ - down_read(&pci_bus_sem); + if (!locked) + down_read(&pci_bus_sem); mutex_lock(&aspm_lock); pcie_update_aspm_capable(link->root); pcie_config_aspm_path(link); mutex_unlock(&aspm_lock); - up_read(&pci_bus_sem); + if (!locked) + up_read(&pci_bus_sem); } void pcie_aspm_powersave_config_link(struct pci_dev *pdev) |