diff options
| author |   Alvin Lee <Alvin.Lee2@amd.com> | 2022-01-23 13:20:00 -0500 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2022-01-25 18:00:34 -0500 |
| commit | 2eee829ed48747181b17f3f8d458b23981f2bb7b (patch) | |
| tree | a3db6d693913653291fb109d53821e9ea1e7f40c /drivers/gpu/drm/amd/display/dc/dml/display_mode_vba.c | |
| parent | drm/amd/display: do not compare integers of different widths (diff) | |
| download | linux-dev-2eee829ed48747181b17f3f8d458b23981f2bb7b.tar.xz linux-dev-2eee829ed48747181b17f3f8d458b23981f2bb7b.zip | |
drm/amd/display: Driver support for MCLK query tool
Implement handling for escape call to query the MCLK switch support for
the current display config.
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alvin Lee <Alvin.Lee2@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 | 24 |
1 files changed, 24 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 0fad15020c74..c0740dbdcc2e 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 @@ -47,6 +47,7 @@ static void recalculate_params( unsigned int num_pipes); static unsigned int CursorBppEnumToBits(enum cursor_bpp ebpp); +static void cache_debug_params(struct display_mode_lib *mode_lib); unsigned int dml_get_voltage_level( struct display_mode_lib *mode_lib, @@ -73,6 +74,7 @@ unsigned int dml_get_voltage_level( PixelClockAdjustmentForProgressiveToInterlaceUnit(mode_lib); } mode_lib->funcs.validate(mode_lib); + cache_debug_params(mode_lib); return mode_lib->vba.VoltageLevel; } @@ -745,6 +747,28 @@ static void fetch_pipe_params(struct display_mode_lib *mode_lib) mode_lib->vba.HostVMEnable = mode_lib->vba.HostVMEnable && !!ip->hostvm_enable; } +/** + * ******************************************************************************************** + * cache_debug_params: Cache any params that needed to be maintained from the initial validation + * for debug purposes. + * + * The DML getters can modify some of the VBA params that we are interested in (for example when + * calculating with dummy p-state latency), so cache any params here that we want for debugging + * + * @param [in] mode_lib: mode_lib input/output of validate call + * + * @return: void + * + * ******************************************************************************************** + */ +static void cache_debug_params(struct display_mode_lib *mode_lib) +{ + int k = 0; + + for (k = 0; k < mode_lib->vba.NumberOfActivePlanes; k++) + mode_lib->vba.CachedActiveDRAMClockChangeLatencyMargin[k] = mode_lib->vba.ActiveDRAMClockChangeLatencyMargin[k]; +} + // in wm mode we pull the parameters needed from the display_e2e_pipe_params_st structs // rather than working them out as in recalculate_ms static void recalculate_params( |