forked from Minki/linux
a6dcfd9cc5
1,should use late_fini to kfree all resource otherwise the released pointer maybe accessed in IRQ ip fini routine. 2,hwmgr should not be kfree by pem_fini which is invoked by hw fini path. Signed-off-by: Monk Liu <Monk.Liu@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
112 lines
3.2 KiB
C
112 lines
3.2 KiB
C
/*
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* Copyright 2015 Advanced Micro Devices, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#include <linux/types.h>
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#include <linux/kernel.h>
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#include <linux/slab.h>
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#include "eventmgr.h"
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#include "hwmgr.h"
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#include "eventinit.h"
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#include "eventmanagement.h"
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static int pem_init(struct pp_eventmgr *eventmgr)
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{
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int result = 0;
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struct pem_event_data event_data = { {0} };
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/* Initialize PowerPlay feature info */
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pem_init_feature_info(eventmgr);
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/* Initialize event action chains */
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pem_init_event_action_chains(eventmgr);
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/* Call initialization event */
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result = pem_handle_event(eventmgr, AMD_PP_EVENT_INITIALIZE, &event_data);
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if (0 != result)
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return result;
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/* Register interrupt callback functions */
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result = pem_register_interrupts(eventmgr);
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return 0;
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}
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static void pem_fini(struct pp_eventmgr *eventmgr)
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{
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struct pem_event_data event_data = { {0} };
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pem_uninit_featureInfo(eventmgr);
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pem_unregister_interrupts(eventmgr);
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pem_handle_event(eventmgr, AMD_PP_EVENT_UNINITIALIZE, &event_data);
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}
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int eventmgr_init(struct pp_instance *handle)
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{
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int result = 0;
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struct pp_eventmgr *eventmgr;
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if (handle == NULL)
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return -EINVAL;
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eventmgr = kzalloc(sizeof(struct pp_eventmgr), GFP_KERNEL);
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if (eventmgr == NULL)
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return -ENOMEM;
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eventmgr->hwmgr = handle->hwmgr;
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handle->eventmgr = eventmgr;
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eventmgr->platform_descriptor = &(eventmgr->hwmgr->platform_descriptor);
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eventmgr->pp_eventmgr_init = pem_init;
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eventmgr->pp_eventmgr_fini = pem_fini;
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return result;
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}
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int eventmgr_fini(struct pp_eventmgr *eventmgr)
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{
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kfree(eventmgr);
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return 0;
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}
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static int pem_handle_event_unlocked(struct pp_eventmgr *eventmgr, enum amd_pp_event event, struct pem_event_data *data)
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{
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if (eventmgr == NULL || event >= AMD_PP_EVENT_MAX || data == NULL)
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return -EINVAL;
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return pem_excute_event_chain(eventmgr, eventmgr->event_chain[event], data);
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}
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int pem_handle_event(struct pp_eventmgr *eventmgr, enum amd_pp_event event, struct pem_event_data *event_data)
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{
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int r = 0;
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r = pem_handle_event_unlocked(eventmgr, event, event_data);
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return r;
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}
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bool pem_is_hw_access_blocked(struct pp_eventmgr *eventmgr)
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{
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return (eventmgr->block_adjust_power_state || phm_is_hw_access_blocked(eventmgr->hwmgr));
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}
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