diff options
| author |   David Galiffi <David.Galiffi@amd.com> | 2019-10-01 18:29:56 -0400 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2019-11-13 15:29:43 -0500 |
| commit | 5622b2d68d0a6e2fd960f2129704dc3c561608b2 (patch) | |
| tree | 25f234e9cc08335b678a241cfe7c1d746cb78635 /drivers/gpu/drm/amd/display/dc/dml/display_mode_vba.c | |
| parent | drm/amd/display: set MSA MISC1 bit 6 while sending colorimetry in VSC SDP (diff) | |
| download | linux-dev-5622b2d68d0a6e2fd960f2129704dc3c561608b2.tar.xz linux-dev-5622b2d68d0a6e2fd960f2129704dc3c561608b2.zip | |
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/display_mode_vba.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dml/display_mode_vba.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dml/display_mode_vba.c b/drivers/gpu/drm/amd/display/dc/dml/display_mode_vba.c index 81db8517a690..da5e9d2fd6b6 100644 --- a/drivers/gpu/drm/amd/display/dc/dml/display_mode_vba.c +++ b/drivers/gpu/drm/amd/display/dc/dml/display_mode_vba.c @@ -223,6 +223,8 @@ static void fetch_socbb_params(struct display_mode_lib *mode_lib) mode_lib->vba.SREnterPlusExitTime = soc->sr_enter_plus_exit_time_us; mode_lib->vba.DRAMClockChangeLatency = soc->dram_clock_change_latency_us; mode_lib->vba.DummyPStateCheck = soc->dram_clock_change_latency_us == soc->dummy_pstate_latency_us; + mode_lib->vba.DRAMClockChangeSupportsVActive = !soc->disable_dram_clock_change_vactive_support || + mode_lib->vba.DummyPStateCheck; mode_lib->vba.Downspreading = soc->downspread_percent; mode_lib->vba.DRAMChannelWidth = soc->dram_channel_width_bytes; // new! |