linux_kernel/drivers/gpu/drm/amd/powerplay/eventmgr/eventmanagement.c

/*
 * 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.
 *
 */
#include "eventmanagement.h"
#include "eventmgr.h"
#include "eventactionchains.h"

int pem_init_event_action_chains(struct pp_eventmgr *eventmgr)
{
	int i;

	for (i = 0; i < AMD_PP_EVENT_MAX; i++)
		eventmgr->event_chain[i] = NULL;

	eventmgr->event_chain[AMD_PP_EVENT_SUSPEND] = pem_get_suspend_action_chain(eventmgr);
	eventmgr->event_chain[AMD_PP_EVENT_INITIALIZE] = pem_get_initialize_action_chain(eventmgr);
	eventmgr->event_chain[AMD_PP_EVENT_UNINITIALIZE] = pem_get_uninitialize_action_chain(eventmgr);
	eventmgr->event_chain[AMD_PP_EVENT_POWER_SOURCE_CHANGE] = pem_get_power_source_change_action_chain(eventmgr);
	eventmgr->event_chain[AMD_PP_EVENT_HIBERNATE] = pem_get_hibernate_action_chain(eventmgr);
	eventmgr->event_chain[AMD_PP_EVENT_RESUME] = pem_get_resume_action_chain(eventmgr);
	eventmgr->event_chain[AMD_PP_EVENT_THERMAL_NOTIFICATION] = pem_get_thermal_notification_action_chain(eventmgr);
	eventmgr->event_chain[AMD_PP_EVENT_VBIOS_NOTIFICATION] = pem_get_vbios_notification_action_chain(eventmgr);
	eventmgr->event_chain[AMD_PP_EVENT_ENTER_THERMAL_STATE] = pem_get_enter_thermal_state_action_chain(eventmgr);
	eventmgr->event_chain[AMD_PP_EVENT_EXIT_THERMAL_STATE] = pem_get_exit_thermal_state_action_chain(eventmgr);
	eventmgr->event_chain[AMD_PP_EVENT_ENABLE_POWER_PLAY] = pem_get_enable_powerplay_action_chain(eventmgr);
	eventmgr->event_chain[AMD_PP_EVENT_DISABLE_POWER_PLAY] = pem_get_disable_powerplay_action_chain(eventmgr);
	eventmgr->event_chain[AMD_PP_EVENT_ENABLE_OVER_DRIVE_TEST] = pem_get_enable_overdrive_test_action_chain(eventmgr);
	eventmgr->event_chain[AMD_PP_EVENT_DISABLE_OVER_DRIVE_TEST] = pem_get_disable_overdrive_test_action_chain(eventmgr);
	eventmgr->event_chain[AMD_PP_EVENT_ENABLE_GFX_CLOCK_GATING] = pem_get_enable_gfx_clock_gating_action_chain(eventmgr);
	eventmgr->event_chain[AMD_PP_EVENT_DISABLE_GFX_CLOCK_GATING] = pem_get_disable_gfx_clock_gating_action_chain(eventmgr);
	eventmgr->event_chain[AMD_PP_EVENT_ENABLE_CGPG] = pem_get_enable_cgpg_action_chain(eventmgr);
	eventmgr->event_chain[AMD_PP_EVENT_DISABLE_CGPG] = pem_get_disable_cgpg_action_chain(eventmgr);
	eventmgr->event_chain[AMD_PP_EVENT_COMPLETE_INIT] = pem_get_complete_init_action_chain(eventmgr);
	eventmgr->event_chain[AMD_PP_EVENT_SCREEN_ON] = pem_get_screen_on_action_chain(eventmgr);
	eventmgr->event_chain[AMD_PP_EVENT_SCREEN_OFF] = pem_get_screen_off_action_chain(eventmgr);
	eventmgr->event_chain[AMD_PP_EVENT_PRE_SUSPEND] = pem_get_pre_suspend_action_chain(eventmgr);
	eventmgr->event_chain[AMD_PP_EVENT_PRE_RESUME] = pem_get_pre_resume_action_chain(eventmgr);
	eventmgr->event_chain[AMD_PP_EVENT_ENABLE_USER_STATE] = pem_enable_user_state_action_chain(eventmgr);
	eventmgr->event_chain[AMD_PP_EVENT_READJUST_POWER_STATE] = pem_readjust_power_state_action_chain(eventmgr);
	eventmgr->event_chain[AMD_PP_EVENT_DISPLAY_CONFIG_CHANGE] = pem_display_config_change_action_chain(eventmgr);
	return 0;
}

int pem_excute_event_chain(struct pp_eventmgr *eventmgr, const struct action_chain *event_chain, struct pem_event_data *event_data)
{
	const pem_event_action * const *paction_chain;
	const pem_event_action *psub_chain;
	int tmp_result = 0;
	int result = 0;

	if (eventmgr == NULL || event_chain == NULL || event_data == NULL)
		return -EINVAL;

	for (paction_chain = event_chain->action_chain; NULL != *paction_chain; paction_chain++) {
		if (0 != result)
			return result;

		for (psub_chain = *paction_chain; NULL != *psub_chain; psub_chain++) {
			tmp_result = (*psub_chain)(eventmgr, event_data);
			if (0 == result)
				result = tmp_result;
		}
	}

	return result;
}

const struct action_chain *pem_get_suspend_action_chain(struct pp_eventmgr *eventmgr)
{
	return &suspend_action_chain;
}

const struct action_chain *pem_get_initialize_action_chain(struct pp_eventmgr *eventmgr)
{
	return &initialize_action_chain;
}

const struct action_chain *pem_get_uninitialize_action_chain(struct pp_eventmgr *eventmgr)
{
	return &uninitialize_action_chain;
}

const struct action_chain *pem_get_power_source_change_action_chain(struct pp_eventmgr *eventmgr)
{
	return &power_source_change_action_chain_pp_enabled;  /* other case base on feature info*/
}

const struct action_chain *pem_get_resume_action_chain(struct pp_eventmgr *eventmgr)
{
	return &resume_action_chain;
}

const struct action_chain *pem_get_hibernate_action_chain(struct pp_eventmgr *eventmgr)
{
	return NULL;
}

const struct action_chain *pem_get_thermal_notification_action_chain(struct pp_eventmgr *eventmgr)
{
	return NULL;
}

const struct action_chain *pem_get_vbios_notification_action_chain(struct pp_eventmgr *eventmgr)
{
	return NULL;
}

const struct action_chain *pem_get_enter_thermal_state_action_chain(struct pp_eventmgr *eventmgr)
{
	return NULL;
}

const struct action_chain *pem_get_exit_thermal_state_action_chain(struct pp_eventmgr *eventmgr)
{
	return NULL;
}

const struct action_chain *pem_get_enable_powerplay_action_chain(struct pp_eventmgr *eventmgr)
{
	return NULL;
}

const struct action_chain *pem_get_disable_powerplay_action_chain(struct pp_eventmgr *eventmgr)
{
	return NULL;
}

const struct action_chain *pem_get_enable_overdrive_test_action_chain(struct pp_eventmgr *eventmgr)
{
	return NULL;
}

const struct action_chain *pem_get_disable_overdrive_test_action_chain(struct pp_eventmgr *eventmgr)
{
	return NULL;
}

const struct action_chain *pem_get_enable_gfx_clock_gating_action_chain(struct pp_eventmgr *eventmgr)
{
	return &enable_gfx_clock_gating_action_chain;
}

const struct action_chain *pem_get_disable_gfx_clock_gating_action_chain(struct pp_eventmgr *eventmgr)
{
	return &disable_gfx_clock_gating_action_chain;
}

const struct action_chain *pem_get_enable_cgpg_action_chain(struct pp_eventmgr *eventmgr)
{
	return &enable_cgpg_action_chain;
}

const struct action_chain *pem_get_disable_cgpg_action_chain(struct pp_eventmgr *eventmgr)
{
	return &disable_cgpg_action_chain;
}

const struct action_chain *pem_get_complete_init_action_chain(struct pp_eventmgr *eventmgr)
{
	return &complete_init_action_chain;
}

const struct action_chain *pem_get_screen_on_action_chain(struct pp_eventmgr *eventmgr)
{
	return NULL;
}

const struct action_chain *pem_get_screen_off_action_chain(struct pp_eventmgr *eventmgr)
{
	return NULL;
}

const struct action_chain *pem_get_pre_suspend_action_chain(struct pp_eventmgr *eventmgr)
{
	return NULL;
}

const struct action_chain *pem_get_pre_resume_action_chain(struct pp_eventmgr *eventmgr)
{
	return NULL;
}

const struct action_chain *pem_enable_user_state_action_chain(struct pp_eventmgr *eventmgr)
{
	return &enable_user_state_action_chain;
}

const struct action_chain *pem_readjust_power_state_action_chain(struct pp_eventmgr *eventmgr)
{
	return &readjust_power_state_action_chain;
}

const struct action_chain *pem_display_config_change_action_chain(struct pp_eventmgr *eventmgr)
{
	return &display_config_change_action_chain;
}