148 lines
3.6 KiB
C
148 lines
3.6 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Samsung Exynos SoC series dsp driver
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*
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* Copyright (c) 2019 Samsung Electronics Co., Ltd.
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* http://www.samsung.com/
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*/
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#ifndef __HW_DSP_PM_H__
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#define __HW_DSP_PM_H__
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#include <linux/device.h>
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#include <linux/pm_runtime.h>
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#include <linux/pm_qos.h>
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#include <linux/cpufreq.h>
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#include <linux/kthread.h>
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#include <linux/spinlock.h>
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#include <linux/version.h>
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#if IS_ENABLED(CONFIG_EXYNOS_PM_QOS)
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#include <soc/samsung/exynos_pm_qos.h>
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#endif
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#include "dsp-governor.h"
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#define DSP_DEVFREQ_NAME_LEN (10)
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#define DSP_DEVFREQ_RESERVED_NUM (16)
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struct dsp_system;
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struct dsp_pm;
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enum dsp_pm_qos_level {
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DSP_PM_QOS_L0,
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DSP_PM_QOS_L1,
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DSP_PM_QOS_L2,
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DSP_PM_QOS_L3,
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DSP_PM_QOS_L4,
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DSP_PM_QOS_L5,
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DSP_PM_QOS_L6,
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DSP_PM_QOS_L7,
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DSP_PM_QOS_L8,
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DSP_PM_QOS_L9,
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DSP_PM_QOS_L10,
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DSP_PM_QOS_L11,
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DSP_PM_QOS_L12,
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DSP_PM_QOS_L13,
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DSP_PM_QOS_L14,
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DSP_PM_QOS_L15,
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DSP_PM_QOS_L16,
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DSP_PM_QOS_L17,
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DSP_PM_QOS_L18,
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DSP_PM_QOS_L19,
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DSP_PM_QOS_L20,
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DSP_PM_QOS_L21,
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DSP_PM_QOS_L22,
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DSP_PM_QOS_L23,
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DSP_PM_QOS_L24,
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DSP_PM_QOS_L25,
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DSP_PM_QOS_L26,
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DSP_PM_QOS_L27,
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DSP_PM_QOS_L28,
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DSP_PM_QOS_L29,
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DSP_PM_QOS_L30,
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DSP_PM_QOS_DEFAULT = DSP_GOVERNOR_DEFAULT,
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};
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typedef int (*pm_handler_t)(struct dsp_pm *, int, int);
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struct dsp_pm_devfreq {
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unsigned int id;
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char name[DSP_DEVFREQ_NAME_LEN];
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#if IS_ENABLED(CONFIG_EXYNOS_PM_QOS)
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struct exynos_pm_qos_request req;
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#else
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struct pm_qos_request req;
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#endif
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bool use_freq_qos;
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struct cpufreq_policy *policy;
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#if KERNEL_VERSION(5, 4, 0) <= LINUX_VERSION_CODE
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struct freq_qos_request freq_qos_req;
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#endif
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int count;
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const unsigned int *table;
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int class_id;
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int boot_qos;
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int dynamic_qos;
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unsigned int dynamic_total_count;
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unsigned int dynamic_count[DSP_DEVFREQ_RESERVED_NUM];
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int static_qos;
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unsigned int static_total_count;
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unsigned int static_count[DSP_DEVFREQ_RESERVED_NUM];
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int current_qos;
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int force_qos;
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int min_qos;
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struct kthread_work work;
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spinlock_t slock;
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int async_status;
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int async_qos;
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struct dsp_pm *pm;
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};
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struct dsp_pm_ops {
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int (*devfreq_active)(struct dsp_pm *pm);
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int (*update_freq_info)(struct dsp_pm *pm, int id);
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int (*update_devfreq_nolock)(struct dsp_pm *pm, int id, int val);
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int (*update_devfreq_nolock_async)(struct dsp_pm *pm, int id, int val);
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int (*update_extra_devfreq)(struct dsp_pm *pm, int id, int val);
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int (*set_force_qos)(struct dsp_pm *pm, int id, int val);
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int (*dvfs_enable)(struct dsp_pm *pm, int val);
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int (*dvfs_disable)(struct dsp_pm *pm, int val);
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int (*update_devfreq_busy)(struct dsp_pm *pm, int val);
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int (*update_devfreq_idle)(struct dsp_pm *pm, int val);
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int (*update_devfreq_boot)(struct dsp_pm *pm);
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int (*update_devfreq_max)(struct dsp_pm *pm);
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int (*update_devfreq_min)(struct dsp_pm *pm);
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int (*set_boot_qos)(struct dsp_pm *pm, int val);
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int (*boost_enable)(struct dsp_pm *pm);
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int (*boost_disable)(struct dsp_pm *pm);
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int (*enable)(struct dsp_pm *pm);
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int (*disable)(struct dsp_pm *pm);
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int (*open)(struct dsp_pm *pm);
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int (*close)(struct dsp_pm *pm);
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int (*probe)(struct dsp_pm *pm, void *sys);
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void (*remove)(struct dsp_pm *pm);
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};
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struct dsp_pm {
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struct device *dev;
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struct mutex lock;
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struct dsp_pm_devfreq *devfreq;
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unsigned int devfreq_count;
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bool dvfs;
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unsigned int dvfs_disable_count;
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bool dvfs_lock;
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struct dsp_pm_devfreq *extra_devfreq;
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unsigned int extra_devfreq_count;
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struct kthread_worker async_worker;
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struct task_struct *async_task;
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pm_handler_t update_devfreq_handler;
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const struct dsp_pm_ops *ops;
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struct dsp_system *sys;
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};
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#endif
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