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8aa218e0ec
- check return value of nvgpu_mutex_init in pstate.c - add new callback gk20a_deinit_pstate_support() to deinitialize pstate support - add corresponding nvgpu_mutex_destroy calls Jira NVGPU-13 Change-Id: I206bf2324e8fe95f4ed52c29ac5d8981327632b2 Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/1321296 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
65 lines
1.7 KiB
C
65 lines
1.7 KiB
C
/*
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* general p state infrastructure
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*
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* Copyright (c) 2016-2017, NVIDIA CORPORATION. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*/
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#ifndef __PSTATE_H__
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#define __PSTATE_H__
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#include "gk20a/gk20a.h"
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#include "clk/clk.h"
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#define CTRL_PERF_PSTATE_TYPE_3X 0x3
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#define CTRL_PERF_PSTATE_P0 0
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#define CTRL_PERF_PSTATE_P5 5
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#define CTRL_PERF_PSTATE_P8 8
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#define CLK_SET_INFO_MAX_SIZE (32)
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struct clk_set_info {
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enum nv_pmu_clk_clkwhich clkwhich;
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u32 nominal_mhz;
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u32 min_mhz;
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u32 max_mhz;
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};
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struct clk_set_info_list {
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u32 num_info;
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struct clk_set_info clksetinfo[CLK_SET_INFO_MAX_SIZE];
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};
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struct pstate {
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struct boardobj super;
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u32 num;
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u8 lpwr_entry_idx;
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struct clk_set_info_list clklist;
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};
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struct pstates {
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struct boardobjgrp_e32 super;
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u32 num_levels;
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wait_queue_head_t pstate_notifier_wq;
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u32 is_pstate_switch_on;
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struct nvgpu_mutex pstate_mutex; /* protect is_pstate_switch_on */
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};
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int gk20a_init_pstate_support(struct gk20a *g);
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void gk20a_deinit_pstate_support(struct gk20a *g);
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int gk20a_init_pstate_pmu_support(struct gk20a *g);
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struct clk_set_info *pstate_get_clk_set_info(struct gk20a *g, u32 pstate_num,
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enum nv_pmu_clk_clkwhich clkwhich);
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struct pstate *pstate_find(struct gk20a *g, u32 num);
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#endif /* __PSTATE_H__ */
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