diff options
| author | Vidya Sagar <vidyas@nvidia.com> | 2024-05-08 23:11:35 +0530 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2024-06-03 16:13:38 -0500 |
| commit | 9d7d5db8e78ef1b67690bbffa5af60016d8e279d (patch) | |
| tree | f91265594f4d6f64f84b7c190aae0c76043f8909 /drivers/pci/pci.h | |
| parent | 1613e604df0cd359cf2a7fbd9be7a0bcfacfabd0 (diff) | |
PCI: Move PRESERVE_BOOT_CONFIG _DSM evaluation to pci_register_host_bridge()
Move the PRESERVE_BOOT_CONFIG _DSM evaluation from acpi_pci_root_create()
to pci_register_host_bridge().
This will help unify the ACPI _DSM path and the DT-based
"linux,pci-probe-only" paths.
This should be safe because it happens earlier than it used to:
acpi_pci_root_create
pci_create_root_bus
pci_register_host_bridge
+ bridge->preserve_config = pci_preserve_config(bridge)
pci_acpi_preserve_config
+ acpi_evaluate_dsm_typed(DSM_PCI_PRESERVE_BOOT_CONFIG)
- acpi_evaluate_dsm_typed(DSM_PCI_PRESERVE_BOOT_CONFIG)
No functional change intended.
Link: https://lore.kernel.org/r/20240508174138.3630283-2-vidyas@nvidia.com
Signed-off-by: Vidya Sagar <vidyas@nvidia.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci/pci.h')
| -rw-r--r-- | drivers/pci/pci.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index fd44565c4756..0df6bab385cd 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -732,6 +732,7 @@ static inline void pci_restore_aer_state(struct pci_dev *dev) { } #endif #ifdef CONFIG_ACPI +bool pci_acpi_preserve_config(struct pci_host_bridge *bridge); int pci_acpi_program_hp_params(struct pci_dev *dev); extern const struct attribute_group pci_dev_acpi_attr_group; void pci_set_acpi_fwnode(struct pci_dev *dev); @@ -745,6 +746,10 @@ int acpi_pci_wakeup(struct pci_dev *dev, bool enable); bool acpi_pci_need_resume(struct pci_dev *dev); pci_power_t acpi_pci_choose_state(struct pci_dev *pdev); #else +static inline bool pci_acpi_preserve_config(struct pci_host_bridge *bridge) +{ + return false; +} static inline int pci_dev_acpi_reset(struct pci_dev *dev, bool probe) { return -ENOTTY; |