linux-imx

// SPDX-License-Identifier: GPL-2.0

/*

 * System Control and Management Interface (SCMI) Performance Protocol

 *

 * Copyright (C) 2018 ARM Ltd.

 */

​

#include <linux/of.h>

#include <linux/platform_device.h>

#include <linux/pm_opp.h>

#include <linux/sort.h>

​

#include "common.h"

​

enum scmi_performance_protocol_cmd {

    PERF_DOMAIN_ATTRIBUTES = 0x3,

    PERF_DESCRIBE_LEVELS = 0x4,

    PERF_LIMITS_SET = 0x5,

    PERF_LIMITS_GET = 0x6,

    PERF_LEVEL_SET = 0x7,

    PERF_LEVEL_GET = 0x8,

    PERF_NOTIFY_LIMITS = 0x9,

    PERF_NOTIFY_LEVEL = 0xa,

};

​

struct scmi_opp {

    u32 perf;

    u32 power;

    u32 trans_latency_us;

};

​

struct scmi_msg_resp_perf_attributes {

    __le16 num_domains;

    __le16 flags;

#define POWER_SCALE_IN_MILLIWATT(x) ((x) & BIT(0))

    __le32 stats_addr_low;

    __le32 stats_addr_high;

    __le32 stats_size;

};

​

struct scmi_msg_resp_perf_domain_attributes {

    __le32 flags;

#define SUPPORTS_SET_LIMITS(x)      ((x) & BIT(31))

#define SUPPORTS_SET_PERF_LVL(x)    ((x) & BIT(30))

#define SUPPORTS_PERF_LIMIT_NOTIFY(x)   ((x) & BIT(29))

#define SUPPORTS_PERF_LEVEL_NOTIFY(x)   ((x) & BIT(28))

    __le32 rate_limit_us;

    __le32 sustained_freq_khz;

    __le32 sustained_perf_level;

        u8 name[SCMI_MAX_STR_SIZE];

};

​

struct scmi_msg_perf_describe_levels {

    __le32 domain;

    __le32 level_index;

};

​

struct scmi_perf_set_limits {

    __le32 domain;

    __le32 max_level;

    __le32 min_level;

};

​