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linux/drivers/gpu/drm/amd/display/dc/dc_stat.h
Chun-Liang Chang 556a979d3c drm/amd/display: DMUB Outbound Interrupt Process-X86
[Why]
dmub would notify x86 response time violation by GPINT_DATAOUT

[How]
1. Use GPINT_DATAOUT to trigger x86 interrupt
2. Register GPINT_DATAOUT interrupt handler.
3. Trigger ACR while GPINT_DATAOUT occurred.

Signed-off-by: Chun-Liang Chang <Chun-Liang.Chang@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-07-08 15:14:36 -04:00

43 lines
1.6 KiB
C

/*
* Copyright 2020 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.
*
* Authors: AMD
*
*/
#ifndef _DC_STAT_H_
#define _DC_STAT_H_
/**
* DOC: DC STAT Interface
*
* These interfaces are called without acquiring DAL and DC locks.
* Hence, there is limitations on whese interfaces can access. Only
* variables exclusively defined for these interfaces can be modified.
*/
#include "dc.h"
#include "dmub/dmub_srv.h"
void dc_stat_get_dmub_notification(const struct dc *dc, struct dmub_notification *notify);
void dc_stat_get_dmub_dataout(const struct dc *dc, uint32_t *dataout);
#endif /* _DC_STAT_H_ */