cregit-Linux how code gets into the kernel

Release 4.11 drivers/gpu/drm/amd/powerplay/inc/eventmanager.h

/*
 * Copyright 2015 Advanced Micro Devices, Inc.
 *
 * 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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 _EVENT_MANAGER_H_

#define _EVENT_MANAGER_H_

#include "power_state.h"
#include "pp_power_source.h"
#include "hardwaremanager.h"
#include "pp_asicblocks.h"

struct pp_eventmgr;
enum amd_pp_event;


enum PEM_EventDataValid {
	
PEM_EventDataValid_RequestedStateID = 0,
	
PEM_EventDataValid_RequestedUILabel,
	
PEM_EventDataValid_NewPowerState,
	
PEM_EventDataValid_RequestedPowerSource,
	
PEM_EventDataValid_RequestedClocks,
	
PEM_EventDataValid_CurrentTemperature,
	
PEM_EventDataValid_AsicBlocks,
	
PEM_EventDataValid_ODParameters,
	
PEM_EventDataValid_PXAdapterPrefs,
	
PEM_EventDataValid_PXUserPrefs,
	
PEM_EventDataValid_PXSwitchReason,
	
PEM_EventDataValid_PXSwitchPhase,
	
PEM_EventDataValid_HdVideo,
	
PEM_EventDataValid_BacklightLevel,
	
PEM_EventDatavalid_VariBrightParams,
	
PEM_EventDataValid_VariBrightLevel,
	
PEM_EventDataValid_VariBrightImmediateChange,
	
PEM_EventDataValid_PercentWhite,
	
PEM_EventDataValid_SdVideo,
	
PEM_EventDataValid_HTLinkChangeReason,
	
PEM_EventDataValid_HWBlocks,
	
PEM_EventDataValid_RequestedThermalState,
	
PEM_EventDataValid_MvcVideo,
	
PEM_EventDataValid_Max
};


typedef enum PEM_EventDataValid PEM_EventDataValid;

/* Number of bits in ULONG variable */

#define PEM_MAX_NUM_EVENTDATAVALID_BITS_PER_FIELD (sizeof(unsigned long)*8)

/* Number of ULONG entries used by event data valid bits */

#define PEM_MAX_NUM_EVENTDATAVALID_ULONG_ENTRIES                                 \
		((PEM_EventDataValid_Max + PEM_MAX_NUM_EVENTDATAVALID_BITS_PER_FIELD - 1) /  \
                PEM_MAX_NUM_EVENTDATAVALID_BITS_PER_FIELD)


static inline void pem_set_event_data_valid(unsigned long *fields, PEM_EventDataValid valid_field) { fields[valid_field / PEM_MAX_NUM_EVENTDATAVALID_BITS_PER_FIELD] |= (1UL << (valid_field % PEM_MAX_NUM_EVENTDATAVALID_BITS_PER_FIELD)); }

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static inline void pem_unset_event_data_valid(unsigned long *fields, PEM_EventDataValid valid_field) { fields[valid_field / PEM_MAX_NUM_EVENTDATAVALID_BITS_PER_FIELD] &= ~(1UL << (valid_field % PEM_MAX_NUM_EVENTDATAVALID_BITS_PER_FIELD)); }

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static inline unsigned long pem_is_event_data_valid(const unsigned long *fields, PEM_EventDataValid valid_field) { return fields[valid_field / PEM_MAX_NUM_EVENTDATAVALID_BITS_PER_FIELD] & (1UL << (valid_field % PEM_MAX_NUM_EVENTDATAVALID_BITS_PER_FIELD)); }

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struct pem_event_data { unsigned long valid_fields[100]; unsigned long requested_state_id; enum PP_StateUILabel requested_ui_label; struct pp_power_state *pnew_power_state; enum pp_power_source requested_power_source; struct PP_Clocks requested_clocks; bool skip_state_adjust_rules; struct phm_asic_blocks asic_blocks; /* to doPP_ThermalState requestedThermalState; enum ThermalStateRequestSrc requestThermalStateSrc; PP_Temperature currentTemperature;*/ }; int pem_handle_event(struct pp_eventmgr *eventmgr, enum amd_pp_event event, struct pem_event_data *event_data); bool pem_is_hw_access_blocked(struct pp_eventmgr *eventmgr); #endif /* _EVENT_MANAGER_H_ */

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