[linux-2.6-block.git] / drivers / gpu / drm / amd / powerplay / eventmgr / eventmgr.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 <linux/types.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include "eventmgr.h"
#include "hwmgr.h"
#include "eventinit.h"
#include "eventmanagement.h"

static int pem_init(struct pp_eventmgr *eventmgr)
{
	int result = 0;
	struct pem_event_data event_data = { {0} };

	/* Initialize PowerPlay feature info */
	pem_init_feature_info(eventmgr);

	/* Initialize event action chains */
	pem_init_event_action_chains(eventmgr);

	/* Call initialization event */
	result = pem_handle_event(eventmgr, AMD_PP_EVENT_INITIALIZE, &event_data);

	if (0 != result)
		return result;

	/* Register interrupt callback functions */
	result = pem_register_interrupts(eventmgr);
	return 0;
}

static void pem_fini(struct pp_eventmgr *eventmgr)
{
	struct pem_event_data event_data = { {0} };

	pem_uninit_featureInfo(eventmgr);
	pem_unregister_interrupts(eventmgr);

	pem_handle_event(eventmgr, AMD_PP_EVENT_UNINITIALIZE, &event_data);

	if (eventmgr != NULL)
		kfree(eventmgr);
}

int eventmgr_init(struct pp_instance *handle)
{
	int result = 0;
	struct pp_eventmgr *eventmgr;

	if (handle == NULL)
		return -EINVAL;

	eventmgr = kzalloc(sizeof(struct pp_eventmgr), GFP_KERNEL);
	if (eventmgr == NULL)
		return -ENOMEM;

	eventmgr->hwmgr = handle->hwmgr;
	handle->eventmgr = eventmgr;

	eventmgr->platform_descriptor = &(eventmgr->hwmgr->platform_descriptor);
	eventmgr->pp_eventmgr_init = pem_init;
	eventmgr->pp_eventmgr_fini = pem_fini;

	return result;
}

int eventmgr_fini(struct pp_eventmgr *eventmgr)
{
	kfree(eventmgr);
	return 0;
}

static int pem_handle_event_unlocked(struct pp_eventmgr *eventmgr, enum amd_pp_event event, struct pem_event_data *data)
{
	if (eventmgr == NULL || event >= AMD_PP_EVENT_MAX || data == NULL)
		return -EINVAL;

	return pem_excute_event_chain(eventmgr, eventmgr->event_chain[event], data);
}

int pem_handle_event(struct pp_eventmgr *eventmgr, enum amd_pp_event event, struct pem_event_data *event_data)
{
	int r = 0;

	r = pem_handle_event_unlocked(eventmgr, event, event_data);

	return r;
}

bool pem_is_hw_access_blocked(struct pp_eventmgr *eventmgr)
{
	return (eventmgr->block_adjust_power_state || phm_is_hw_access_blocked(eventmgr->hwmgr));
}
Commit	Line	Data
e92a0370 RZ	1	/*
	2	* Copyright 2015 Advanced Micro Devices, Inc.
	3	*
	4	* Permission is hereby granted, free of charge, to any person obtaining a
	5	* copy of this software and associated documentation files (the "Software"),
	6	* to deal in the Software without restriction, including without limitation
	7	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	8	* and/or sell copies of the Software, and to permit persons to whom the
	9	* Software is furnished to do so, subject to the following conditions:
	10	*
	11	* The above copyright notice and this permission notice shall be included in
	12	* all copies or substantial portions of the Software.
	13	*
	14	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	15	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	16	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	17	* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
	18	* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
	19	* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
	20	* OTHER DEALINGS IN THE SOFTWARE.
	21	*
	22	*/
	23	#include <linux/types.h>
	24	#include <linux/kernel.h>
	25	#include <linux/slab.h>
	26	#include "eventmgr.h"
	27	#include "hwmgr.h"
	28	#include "eventinit.h"
	29	#include "eventmanagement.h"
	30
	31	static int pem_init(struct pp_eventmgr *eventmgr)
	32	{
	33	int result = 0;
827108d0	34	struct pem_event_data event_data = { {0} };
e92a0370 RZ	35
	36	/* Initialize PowerPlay feature info */
	37	pem_init_feature_info(eventmgr);
	38
	39	/* Initialize event action chains */
	40	pem_init_event_action_chains(eventmgr);
	41
	42	/* Call initialization event */
	43	result = pem_handle_event(eventmgr, AMD_PP_EVENT_INITIALIZE, &event_data);
	44
	45	if (0 != result)
	46	return result;
	47
	48	/* Register interrupt callback functions */
	49	result = pem_register_interrupts(eventmgr);
	50	return 0;
	51	}
	52
	53	static void pem_fini(struct pp_eventmgr *eventmgr)
	54	{
827108d0	55	struct pem_event_data event_data = { {0} };
e92a0370 RZ	56
	57	pem_uninit_featureInfo(eventmgr);
	58	pem_unregister_interrupts(eventmgr);
	59
	60	pem_handle_event(eventmgr, AMD_PP_EVENT_UNINITIALIZE, &event_data);
	61
	62	if (eventmgr != NULL)
	63	kfree(eventmgr);
	64	}
	65
	66	int eventmgr_init(struct pp_instance *handle)
	67	{
	68	int result = 0;
	69	struct pp_eventmgr *eventmgr;
	70
	71	if (handle == NULL)
	72	return -EINVAL;
	73
	74	eventmgr = kzalloc(sizeof(struct pp_eventmgr), GFP_KERNEL);
	75	if (eventmgr == NULL)
	76	return -ENOMEM;
	77
	78	eventmgr->hwmgr = handle->hwmgr;
	79	handle->eventmgr = eventmgr;
	80
	81	eventmgr->platform_descriptor = &(eventmgr->hwmgr->platform_descriptor);
	82	eventmgr->pp_eventmgr_init = pem_init;
	83	eventmgr->pp_eventmgr_fini = pem_fini;
	84
	85	return result;
	86	}
	87
	88	int eventmgr_fini(struct pp_eventmgr *eventmgr)
	89	{
	90	kfree(eventmgr);
	91	return 0;
	92	}
	93
	94	static int pem_handle_event_unlocked(struct pp_eventmgr eventmgr, enum amd_pp_event event, struct pem_event_data data)
	95	{
	96	if (eventmgr == NULL \|\| event >= AMD_PP_EVENT_MAX \|\| data == NULL)
	97	return -EINVAL;
	98
	99	return pem_excute_event_chain(eventmgr, eventmgr->event_chain[event], data);
	100	}
	101
	102	int pem_handle_event(struct pp_eventmgr eventmgr, enum amd_pp_event event, struct pem_event_data event_data)
	103	{
	104	int r = 0;
	105
	106	r = pem_handle_event_unlocked(eventmgr, event, event_data);
	107
	108	return r;
	109	}
	110
	111	bool pem_is_hw_access_blocked(struct pp_eventmgr *eventmgr)
	112	{
	113	return (eventmgr->block_adjust_power_state \|\| phm_is_hw_access_blocked(eventmgr->hwmgr));
	114	}