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path: root/drivers/gpu/drm/amd/display/dc/inc/hw/abm.h
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2024-01-03drm/amd/display: Correctly restore user_levelCamille Cho
[Why] BL1_PWM_USER_LEVEL is meant for the user brightness level setting from OS. However, we update it along with other ABM levels to the real PWM value which could be ABMed. [How] Driver to cache and restore the user brightness level setting so that DMUB can retrieve the last user setting in ABM config initialization. Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Reviewed-by: Anthony Koo <anthony.koo@amd.com> Acked-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com> Signed-off-by: Camille Cho <camille.cho@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-12-06drm/amd/display: Pass pwrseq inst for backlight and ABMLewis Huang
[Why] OTG inst and pwrseq inst mapping is not align therefore we cannot use otg_inst as pwrseq inst to get DCIO register. [How] 1. Pass the correct pwrseq instance to dmub when set abm pipe. 2. LVTMA control index change from panel_inst to pwrseq_inst. Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Reviewed-by: Phil Hsieh <phil.hsieh@amd.com> Acked-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com> Signed-off-by: Lewis Huang <lewis.huang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-07-18drm/amd/display: ABM pause toggleReza Amini
[why] Allow ABM states to be transferred across display adapters for smooth display transitions. [how] We call DMUB to pause and get ABM states. We transfer data to other gpu, and deliver data and ask ABM to un-pause. Reviewed-by: Harry Vanzylldejong <harry.vanzylldejong@amd.com> Acked-by: Alan Liu <haoping.liu@amd.com> Signed-off-by: Reza Amini <reza.amini@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-06-09drm/amd/display: drop unused function set_abm_event()Hamza Mahfooz
set_abm_event() is never actually used. So, drop it. Fixes: b8fe56375f78 ("drm/amd/display: Refactor ABM feature") Reported-by: kernel test robot <lkp@intel.com> Reported-by: Tom Rix <trix@redhat.com> Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Hamza Mahfooz <hamza.mahfooz@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-04-18drm/amd/display: Refactor ABM featureLeon Huang
[Why] Refactor ABM feature and implement inbox command for DMUB. [How] Implement the ioctl to send inbox command to DMUB. Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Leon Huang <Leon.Huang1@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-09-28drm/amd/display: add vsync notify to dmub for abm pauseEric Yang
[Why] To prevent unnecessary wake up of DMCUB when ABM is enabled without PSR enabled, driver will notify DMCUB to stop ABM's vertical interrupts if vsync is disabled and steady state is reached. [How] Send inbox message to notify ABM pause based on vsync on/off Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com> Acked-by: Anson Jacob <Anson.Jacob@amd.com> Signed-off-by: Eric Yang <Eric.Yang2@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-05-27drm/amd/display: Added support for individual control for multiple ↵Jake Wang
back-light instances. [Why & How] Added support for individual control for multiple back-light instances. Signed-off-by: Jake Wang <haonan.wang2@amd.com> Reviewed-by: Anthony Koo <Anthony.Koo@amd.com> Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-05-05drm/amd/display: Move panel_cntl specific register from abm to panel_cntl.Yongqiang Sun
[Why] panel_cntl specific register should be access in panel_cntl object. [How] Move these register access from abm to panel_cntl. Signed-off-by: Yongqiang Sun <yongqiang.sun@amd.com> Reviewed-by: Anthony Koo <Anthony.Koo@amd.com> Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-04-28drm/amd/display: Add panel cntl id for set backlight level.Yongqiang Sun
[Why & How] Add panel cntl instance when calling set backlight. Signed-off-by: Yongqiang Sun <yongqiang.sun@amd.com> Reviewed-by: Anthony Koo <Anthony.Koo@amd.com> Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Acked-by: Tony Cheng <Tony.Cheng@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-04-22drm/amd/display: Add SetBacklight call to abm on dmcubWyatt Wood
[Why] Set backlight calls to firmware are are being prevented by dmcu == null check. Dmcu is expected to be null in this case. [How] Only prevent call if dmcu and abm are null. Also rename variable 'use_smooth_brightness' to 'fw_set_brightness' as it's more appropriate. Signed-off-by: Wyatt Wood <wyatt.wood@amd.com> Reviewed-by: Anthony Koo <Anthony.Koo@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-04-09drm/amd/display: Implement abm config table copy to dmcubWyatt Wood
[Why] Driver must pass abm config table to dmub fw. This provides various parameters for abm functionality. [How] There is too much data to be passed in an inbox message, so we must pass this data using an indirect buffer. Copy the table to cw7 via x86, driver copies to fw_state structure. Signed-off-by: Wyatt Wood <wyatt.wood@amd.com> Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Acked-by: Tony Cheng <Tony.Cheng@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-04-01drm/amd/display: Add ABM driver implementationWyatt Wood
[Why] Moving ABM from DMCU to DMCUB. [How] Add ABM driver files and implementation. Signed-off-by: Wyatt Wood <wyatt.wood@amd.com> Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-05-31drm/amd/display: disable PSR/ABM before destroy DMCU structPaul Hsieh
[Why] 1. DMCU is not running on some platform but driver still send ABM command. It may cause assert due to DMCU is not alive. 2. To make sure PSR disable when driver disable [How] 1. Add dmcu_is_running in ABM struct, driver can check this flag to determine driver should send ABM command or not. 2. Send PSR disable command when destroy PSR Signed-off-by: Paul Hsieh <paul.hsieh@amd.com> Reviewed-by: Anthony Koo <Anthony.Koo@amd.com> Acked-by: Leo Li <sunpeng.li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-02-19drm/amd/display: send pipe set command to dmcu when stream unblanksJosip Pavic
[Why] When stream is blanked, pipe set command is sent to dmcu to notify it that the abm pipe is disabled. When stream is unblanked, no notification is made to dmcu that the abm pipe has been enabled, resulting in abm not being enabled in the firmware. [How] When stream is unblanked, send a pipe set command to dmcu. Signed-off-by: Josip Pavic <Josip.Pavic@amd.com> Reviewed-by: Anthony Koo <Anthony.Koo@amd.com> Acked-by: Leo Li <sunpeng.li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-11-05drm/amd/display: Expose target backlight levelAnthony Koo
[Why] DM may want to understand any backlight optimizations applied, so DM needs a way to query from the HW both the real current backlight, which may be value during transition. And also target backlight, which may be after some backlight optimizations applied. [How] Add interface to query current and target backlight levels Target level may indicate backlight level after backlight optimization and reductions are applied. Signed-off-by: Anthony Koo <Anthony.Koo@amd.com> Reviewed-by: Krunoslav Kovac <Krunoslav.Kovac@amd.com> Acked-by: Leo Li <sunpeng.li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-11-05drm/amd/display: Expand dc to use 16.16 bit backlightAnthony Koo
[Why] We want to increase precision for backlight setting. But DC interface takes 8 bit backlight level value only. [How] DMCU already takes 16 bit backlight level. Expand the DC interface to take 16.16 bit value. Max 32 bit backlight value (0xFFFF) will represent max backlight (100%) Signed-off-by: Anthony Koo <Anthony.Koo@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Leo Li <sunpeng.li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-12-20drm/amd/display: Fix check for whether dmcu fw is runningAnthony Koo
Signed-off-by: Anthony Koo <Anthony.Koo@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-12-06drm/amd/display: DMCU and ABM maintenance and refactorAnthony Koo
Remove some globals that should really be per block state. Signed-off-by: Anthony Koo <Anthony.Koo@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-09-26drm/amd/display: Disable ABM when eDP is disabledAmy Zhang
- Add immediate ABM disable when eDP is disabled - Fix purple screen when ABM is mistakenly enabled on non eDP display Signed-off-by: Amy Zhang <Amy.Zhang@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Harry Wentland <Harry.Wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-09-26drm/amd/display: Implement support for backlight optimizationAnthony Koo
- Add functionality to get real hw backlight level as opposed to user level, meaning the level that takes into account backlight ramping over time and backlight reduction due to Varibright - Add backlight optimization which allows for a second OS state that is able to control ABM Signed-off-by: Anthony Koo <Anthony.Koo@amd.com> Reviewed-by: Aric Cyr <Aric.Cyr@amd.com> Acked-by: Harry Wentland <Harry.Wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-09-26drm/amd/display: Don't call PSR func if DMCU is offHarry Wentland
Signed-off-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-09-26drm/amd/display: Move backlight from encoder to ABMAnthony Koo
Signed-off-by: Anthony Koo <anthony.koo@amd.com> Reviewed-by: Aric Cyr <Aric.Cyr@amd.com> Acked-by: Harry Wentland <Harry.Wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-09-26drm/amd/display: DMCU Compile and LoadAnthony Koo
Signed-off-by: Anthony Koo <anthony.koo@amd.com> Reviewed-by: Aric Cyr <Aric.Cyr@amd.com> Acked-by: Harry Wentland <Harry.Wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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