/*
* general p state infrastructure
*
* Copyright (c) 2016-2017, NVIDIA CORPORATION. All rights reserved.
*
* 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 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 __PSTATE_H__
#define __PSTATE_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 gk20a;
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 nvgpu_mutex pstate_mutex; /* protect is_pstate_switch_on */
};
int gk20a_init_pstate_support(struct gk20a *g);
void gk20a_deinit_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__ */
