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drm/amd/display: fix unnecessary pipe split playing NV12 1080p MPO video 

[Why]
When playing NV12 1080p MPO video, it is pipe splitting so
we see two pipes in fullscreen and four pipes in windowed
mode. Pipe split is happening because we are setting
MaximumMPCCombine = 1

[How]
Algorithm for MaximumMPCCombine has extra conditions we do
not need.  Use DCN31 algorithm instead

Signed-off-by: Samson Tam <Samson.Tam@amd.com>
Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
pull/31/merge
Samson Tam 2022-04-11 15:38:48 -04:00 committed by Alex Deucher
parent 59a1e9ed1b
commit 80fb575678
1 changed files with 3 additions and 28 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

31
drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_32.c
View File

@ -3733,35 +3733,10 @@ void dml32_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_l
mode_lib->vba.ModeIsSupported = mode_lib->vba.ModeSupport[i][0] == true
|| mode_lib->vba.ModeSupport[i][1] == true;
if ((mode_lib->vba.ModeSupport[i][0] == false && mode_lib->vba.ModeSupport[i][1] == true)
|| MPCCombineMethodAsPossible
|| (MPCCombineMethodAsNeededForPStateChangeAndVoltage
&& mode_lib->vba.DRAMClockChangeRequirementFinal
&& (((mode_lib->vba.DRAMClockChangeSupport[i][1] == dm_dram_clock_change_vactive
|| mode_lib->vba.DRAMClockChangeSupport[i][1] ==
dm_dram_clock_change_vactive_w_mall_full_frame
|| mode_lib->vba.DRAMClockChangeSupport[i][1] ==
dm_dram_clock_change_vactive_w_mall_sub_vp)
&& !(mode_lib->vba.DRAMClockChangeSupport[i][0] == dm_dram_clock_change_vactive
|| mode_lib->vba.DRAMClockChangeSupport[i][0] ==
dm_dram_clock_change_vactive_w_mall_full_frame
|| mode_lib->vba.DRAMClockChangeSupport[i][0] ==
dm_dram_clock_change_vactive_w_mall_sub_vp))
|| ((mode_lib->vba.DRAMClockChangeSupport[i][1] == dm_dram_clock_change_vblank
|| mode_lib->vba.DRAMClockChangeSupport[i][1] ==
dm_dram_clock_change_vblank_w_mall_full_frame
|| mode_lib->vba.DRAMClockChangeSupport[i][1] ==
dm_dram_clock_change_vblank_w_mall_sub_vp)
&& mode_lib->vba.DRAMClockChangeSupport[i][0] == dm_dram_clock_change_unsupported)))
|| (MPCCombineMethodAsNeededForPStateChangeAndVoltage &&
mode_lib->vba.FCLKChangeRequirementFinal
&& ((mode_lib->vba.FCLKChangeSupport[i][1] == dm_fclock_change_vactive
&& mode_lib->vba.FCLKChangeSupport[i][0] != dm_fclock_change_vactive)
|| (mode_lib->vba.FCLKChangeSupport[i][1] == dm_fclock_change_vblank
&& mode_lib->vba.FCLKChangeSupport[i][0] == dm_fclock_change_unsupported)))) {
MaximumMPCCombine = 1;
} else {
if (mode_lib->vba.ModeSupport[i][0] == true) {
MaximumMPCCombine = 0;
} else {
MaximumMPCCombine = 1;
}
}
}