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/*
* Copyright © 2015 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
#ifndef IGT_PM_H
#define IGT_PM_H
void igt_pm_enable_audio_runtime_pm(void);
void igt_pm_enable_sata_link_power_management(void);
void igt_pm_restore_sata_link_power_management(void);
/**
* igt_runtime_pm_status:
* @IGT_RUNTIME_PM_STATUS_ACTIVE: device is active
* @IGT_RUNTIME_PM_STATUS_SUSPENDED: device is suspended
* @IGT_RUNTIME_PM_STATUS_SUSPENDING: device is in the process of suspending
* @IGT_RUNTIME_PM_STATUS_RESUMING: device is in the process of resuming
* @IGT_RUNTIME_PM_STATUS_UNKNOWN: unknown runtime PM status
*
* Symbolic values for runtime PM device status.
*/
enum igt_runtime_pm_status {
IGT_RUNTIME_PM_STATUS_ACTIVE,
IGT_RUNTIME_PM_STATUS_SUSPENDED,
IGT_RUNTIME_PM_STATUS_SUSPENDING,
IGT_RUNTIME_PM_STATUS_RESUMING,
IGT_RUNTIME_PM_STATUS_UNKNOWN,
};
/* PCI ACPI firmware node real state */
enum igt_acpi_d_state {
IGT_ACPI_D0,
IGT_ACPI_D1,
IGT_ACPI_D2,
IGT_ACPI_D3Hot,
IGT_ACPI_D3Cold,
IGT_ACPI_UNKNOWN_STATE,
};
struct igt_pm_pci_dev_pwrattr {
struct pci_device *pci_dev;
char control[64];
bool autosuspend_supported;
char autosuspend_delay[64];
};
bool igt_setup_runtime_pm(int device);
void igt_disable_runtime_pm(void);
void igt_restore_runtime_pm(void);
enum igt_runtime_pm_status igt_get_runtime_pm_status(void);
bool igt_wait_for_pm_status(enum igt_runtime_pm_status status);
bool igt_pm_dmc_loaded(int debugfs);
bool igt_pm_pc8_plus_residencies_enabled(int msr_fd);
bool i915_output_is_lpsp_capable(int drm_fd, igt_output_t *output);
bool igt_pm_acpi_d3cold_supported(struct pci_device *pci_dev);
enum igt_acpi_d_state
igt_pm_get_acpi_real_d_state(struct pci_device *pci_dev);
void igt_pm_enable_pci_card_runtime_pm(struct pci_device *root,
struct pci_device *i915);
void igt_pm_setup_pci_card_runtime_pm(struct pci_device *pci_dev);
void igt_pm_restore_pci_card_runtime_pm(void);
void igt_pm_print_pci_card_runtime_status(void);
#endif /* IGT_PM_H */
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