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/*
* general p state infrastructure
*
* Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*/
#ifndef __PSTATE_H__
#define __PSTATE_H__
#include "gk20a/gk20a.h"
#include "clk/clk.h"
#define CTRL_PERF_PSTATE_TYPE_3X 0x3
#define CTRL_PERF_PSTATE_P0 0
#define CTRL_PERF_PSTATE_P5 5
#define CTRL_PERF_PSTATE_P8 8
#define CLK_SET_INFO_MAX_SIZE (32)
struct clk_set_info {
enum nv_pmu_clk_clkwhich clkwhich;
u32 nominal_mhz;
u32 min_mhz;
u32 max_mhz;
};
struct clk_set_info_list {
u32 num_info;
struct clk_set_info clksetinfo[CLK_SET_INFO_MAX_SIZE];
};
struct pstate {
struct boardobj super;
u32 num;
u8 lpwr_entry_idx;
struct clk_set_info_list clklist;
};
struct pstates {
struct boardobjgrp_e32 super;
u32 num_levels;
wait_queue_head_t pstate_notifier_wq;
u32 is_pstate_switch_on;
struct mutex pstate_mutex; /* protect is_pstate_switch_on */
};
int gk20a_init_pstate_support(struct gk20a *g);
int gk20a_init_pstate_pmu_support(struct gk20a *g);
struct clk_set_info *pstate_get_clk_set_info(struct gk20a *g, u32 pstate_num,
enum nv_pmu_clk_clkwhich clkwhich);
struct pstate *pstate_find(struct gk20a *g, u32 num);
#endif /* __PSTATE_H__ */
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