/* SPDX-License-Identifier: GPL-2.0 */ /* * Intel Uncore Frequency Control: Common defines and prototypes * Copyright (c) 2022, Intel Corporation. * All rights reserved. * */ #ifndef __INTEL_UNCORE_FREQ_COMMON_H #define __INTEL_UNCORE_FREQ_COMMON_H #include <linux/device.h> /** * struct uncore_data - Encapsulate all uncore data * @stored_uncore_data: Last user changed MSR 620 value, which will be restored * on system resume. * @initial_min_freq_khz: Sampled minimum uncore frequency at driver init * @initial_max_freq_khz: Sampled maximum uncore frequency at driver init * @control_cpu: Designated CPU for a die to read/write * @valid: Mark the data valid/invalid * @package_id: Package id for this instance * @die_id: Die id for this instance * @domain_id: Power domain id for this instance * @cluster_id: cluster id in a domain * @instance_id: Unique instance id to append to directory name * @name: Sysfs entry name for this instance * @uncore_attr_group: Attribute group storage * @max_freq_khz_kobj_attr: Storage for kobject attribute max_freq_khz * @mix_freq_khz_kobj_attr: Storage for kobject attribute min_freq_khz * @initial_max_freq_khz_kobj_attr: Storage for kobject attribute initial_max_freq_khz * @initial_min_freq_khz_kobj_attr: Storage for kobject attribute initial_min_freq_khz * @current_freq_khz_kobj_attr: Storage for kobject attribute current_freq_khz * @domain_id_kobj_attr: Storage for kobject attribute domain_id * @fabric_cluster_id_kobj_attr: Storage for kobject attribute fabric_cluster_id * @package_id_kobj_attr: Storage for kobject attribute package_id * @uncore_attrs: Attribute storage for group creation * * This structure is used to encapsulate all data related to uncore sysfs * settings for a die/package. */ struct uncore_data { … }; #define UNCORE_DOMAIN_ID_INVALID … enum uncore_index { … }; int uncore_freq_common_init(int (*read)(struct uncore_data *data, unsigned int *value, enum uncore_index index), int (*write)(struct uncore_data *data, unsigned int input, enum uncore_index index)); void uncore_freq_common_exit(void); int uncore_freq_add_entry(struct uncore_data *data, int cpu); void uncore_freq_remove_die_entry(struct uncore_data *data); #endif
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