diff options
| author | David Galiffi <David.Galiffi@amd.com> | 2019-10-02 01:29:56 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-11-13 23:29:43 +0300 |
| commit | 5622b2d68d0a6e2fd960f2129704dc3c561608b2 (patch) | |
| tree | 25f234e9cc08335b678a241cfe7c1d746cb78635 /drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20.c | |
| parent | 5ed78cd69a1bf64e6bdb70a05c1c9bde87b209ad (diff) | |
| download | linux-5622b2d68d0a6e2fd960f2129704dc3c561608b2.tar.xz | |
drm/amd/display: Create debug option to disable v.active clock change policy.
[WHY]
It has been a useful option in debugging GFXOFF and P.State Change issues.
May be required as for platform specific workaround.
[HOW]
Create option in enum dc_debug_options, "disable_vactive_clock_change".
When it is set, dm_dram_clock_change_vactive, will translate into
p_state_change_support: false.
Signed-off-by: David Galiffi <David.Galiffi@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20.c b/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20.c index 6c6c486b774a..77b7574c63cb 100644 --- a/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20.c +++ b/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20.c @@ -2577,7 +2577,8 @@ static void dml20_DISPCLKDPPCLKDCFCLKDeepSleepPrefetchParametersWatermarksAndPer mode_lib->vba.MinActiveDRAMClockChangeMargin + mode_lib->vba.DRAMClockChangeLatency; - if (mode_lib->vba.MinActiveDRAMClockChangeMargin > 50) { + if (mode_lib->vba.DRAMClockChangeSupportsVActive && + mode_lib->vba.MinActiveDRAMClockChangeMargin > 50) { mode_lib->vba.DRAMClockChangeWatermark += 25; mode_lib->vba.DRAMClockChangeSupport[0][0] = dm_dram_clock_change_vactive; } else { |