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/*
* 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));
}
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