diff options
Diffstat (limited to 'drivers/pci/pci.h')
| -rw-r--r-- | drivers/pci/pci.h | 97 |
1 files changed, 57 insertions, 40 deletions
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index 1cce56c2aea0..3d60cabde1a1 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -63,45 +63,6 @@ struct pci_cap_saved_state *pci_find_saved_ext_cap(struct pci_dev *dev, #define PCI_PM_D3HOT_WAIT 10 /* msec */ #define PCI_PM_D3COLD_WAIT 100 /* msec */ -/** - * struct pci_platform_pm_ops - Firmware PM callbacks - * - * @bridge_d3: Does the bridge allow entering into D3 - * - * @is_manageable: returns 'true' if given device is power manageable by the - * platform firmware - * - * @set_state: invokes the platform firmware to set the device's power state - * - * @get_state: queries the platform firmware for a device's current power state - * - * @refresh_state: asks the platform to refresh the device's power state data - * - * @choose_state: returns PCI power state of given device preferred by the - * platform; to be used during system-wide transitions from a - * sleeping state to the working state and vice versa - * - * @set_wakeup: enables/disables wakeup capability for the device - * - * @need_resume: returns 'true' if the given device (which is currently - * suspended) needs to be resumed to be configured for system - * wakeup. - * - * If given platform is generally capable of power managing PCI devices, all of - * these callbacks are mandatory. - */ -struct pci_platform_pm_ops { - bool (*bridge_d3)(struct pci_dev *dev); - bool (*is_manageable)(struct pci_dev *dev); - int (*set_state)(struct pci_dev *dev, pci_power_t state); - pci_power_t (*get_state)(struct pci_dev *dev); - void (*refresh_state)(struct pci_dev *dev); - pci_power_t (*choose_state)(struct pci_dev *dev); - int (*set_wakeup)(struct pci_dev *dev, bool enable); - bool (*need_resume)(struct pci_dev *dev); -}; - -int pci_set_platform_pm(const struct pci_platform_pm_ops *ops); void pci_update_current_state(struct pci_dev *dev, pci_power_t state); void pci_refresh_power_state(struct pci_dev *dev); int pci_power_up(struct pci_dev *dev); @@ -125,6 +86,7 @@ void pci_msix_init(struct pci_dev *dev); bool pci_bridge_d3_possible(struct pci_dev *dev); void pci_bridge_d3_update(struct pci_dev *dev); void pci_bridge_wait_for_secondary_bus(struct pci_dev *dev); +void pci_bridge_reconfigure_ltr(struct pci_dev *dev); static inline void pci_wakeup_event(struct pci_dev *dev) { @@ -725,17 +687,53 @@ 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); int pci_dev_acpi_reset(struct pci_dev *dev, bool probe); +bool acpi_pci_power_manageable(struct pci_dev *dev); +bool acpi_pci_bridge_d3(struct pci_dev *dev); +int acpi_pci_set_power_state(struct pci_dev *dev, pci_power_t state); +pci_power_t acpi_pci_get_power_state(struct pci_dev *dev); +void acpi_pci_refresh_power_state(struct pci_dev *dev); +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 int pci_dev_acpi_reset(struct pci_dev *dev, bool probe) { return -ENOTTY; } - static inline void pci_set_acpi_fwnode(struct pci_dev *dev) {} static inline int pci_acpi_program_hp_params(struct pci_dev *dev) { return -ENODEV; } +static inline bool acpi_pci_power_manageable(struct pci_dev *dev) +{ + return false; +} +static inline bool acpi_pci_bridge_d3(struct pci_dev *dev) +{ + return false; +} +static inline int acpi_pci_set_power_state(struct pci_dev *dev, pci_power_t state) +{ + return -ENODEV; +} +static inline pci_power_t acpi_pci_get_power_state(struct pci_dev *dev) +{ + return PCI_UNKNOWN; +} +static inline void acpi_pci_refresh_power_state(struct pci_dev *dev) {} +static inline int acpi_pci_wakeup(struct pci_dev *dev, bool enable) +{ + return -ENODEV; +} +static inline bool acpi_pci_need_resume(struct pci_dev *dev) +{ + return false; +} +static inline pci_power_t acpi_pci_choose_state(struct pci_dev *pdev) +{ + return PCI_POWER_ERROR; +} #endif #ifdef CONFIG_PCIEASPM @@ -744,4 +742,23 @@ extern const struct attribute_group aspm_ctrl_attr_group; extern const struct attribute_group pci_dev_reset_method_attr_group; +#ifdef CONFIG_X86_INTEL_MID +bool pci_use_mid_pm(void); +int mid_pci_set_power_state(struct pci_dev *pdev, pci_power_t state); +pci_power_t mid_pci_get_power_state(struct pci_dev *pdev); +#else +static inline bool pci_use_mid_pm(void) +{ + return false; +} +static inline int mid_pci_set_power_state(struct pci_dev *pdev, pci_power_t state) +{ + return -ENODEV; +} +static inline pci_power_t mid_pci_get_power_state(struct pci_dev *pdev) +{ + return PCI_UNKNOWN; +} +#endif + #endif /* DRIVERS_PCI_H */ |