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linux/drivers/gpu/drm/amd/display/modules/power/power_helpers.h
David Zhang 65e7a17499 drm/amd/display: add shared helpers to update psr config fields to power module
[why]
Currently the amdgpu DM psr configuration parameters are hardcoded
before feeding into the DC helper to setup PSR. We would define a
helper which is to calculate parts of the psr config fields to
avoid hard-coding.

[how]
To make helper shareable, declare and define the helper in the
module_helper, to set/update below fields:
- psr remote buffer setup time
- sdp tx line number deadline
- line time in us
- su_y_granularity
- su_granularity_required
- psr_frame_capture_indication_req
- psr_exit_link_training_required

add another helper to check given the stream context, if there is
only one stream and the output is eDP panel connected.

changes in v2:
------------------
- add detailed comment for how psr setup time is calculated as per
  eDP 1.5 spec

Cc: Chandan Vurdigerenataraj <chandan.vurdigerenataraj@amd.com>

Signed-off-by: David Zhang <dingchen.zhang@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-06-06 14:42:33 -04:00

62 lines
2.2 KiB
C

/* Copyright 2018 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.
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* Authors: AMD
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*/
#ifndef MODULES_POWER_POWER_HELPERS_H_
#define MODULES_POWER_POWER_HELPERS_H_
#include "dc/inc/hw/dmcu.h"
#include "dc/inc/hw/abm.h"
#include "dc/inc/core_types.h"
struct resource_pool;
enum abm_defines {
abm_defines_max_level = 4,
abm_defines_max_config = 4,
};
struct dmcu_iram_parameters {
unsigned int *backlight_lut_array;
unsigned int backlight_lut_array_size;
bool backlight_ramping_override;
unsigned int backlight_ramping_reduction;
unsigned int backlight_ramping_start;
unsigned int min_abm_backlight;
unsigned int set;
};
bool dmcu_load_iram(struct dmcu *dmcu,
struct dmcu_iram_parameters params);
bool dmub_init_abm_config(struct resource_pool *res_pool,
struct dmcu_iram_parameters params,
unsigned int inst);
bool is_psr_su_specific_panel(struct dc_link *link);
void mod_power_calc_psr_configs(struct psr_config *psr_config,
struct dc_link *link,
const struct dc_stream_state *stream);
bool mod_power_only_edp(const struct dc_state *context,
const struct dc_stream_state *stream);
#endif /* MODULES_POWER_POWER_HELPERS_H_ */