/* * 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 */