diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2019-08-22 14:17:57 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-08-23 11:33:00 -0500 |
| commit | d99f38aed1a03f78cb7ae04d86e7fc5ac70411e3 (patch) | |
| tree | 4b3d3d8b749555d0685368e6cfd0abcc1c1a3dba /drivers/gpu | |
| parent | 8b2608f1cfece410801a7f5fba374abde4540c0c (diff) | |
| download | linux-d99f38aed1a03f78cb7ae04d86e7fc5ac70411e3.tar.bz2 | |
drm/amdgpu/display: add flag for multi-display mclk switching
Add a dcfeaturemask flag for mclk switching. Disable by default;
enable once the feature has seen more testing.
Set amdgpu.dcfeaturemask=2 on the kernel command line in grub
to enable this.
Acked-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c | 5 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc.h | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/include/amd_shared.h | 1 |
4 files changed, 9 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index 6590317e41f3..15e256d3ab47 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -694,6 +694,9 @@ static int amdgpu_dm_init(struct amdgpu_device *adev) if (amdgpu_dc_feature_mask & DC_FBC_MASK) init_data.flags.fbc_support = true; + if (amdgpu_dc_feature_mask & DC_MULTI_MON_PP_MCLK_SWITCH_MASK) + init_data.flags.multi_mon_pp_mclk_switch = true; + init_data.flags.power_down_display_on_boot = true; #ifdef CONFIG_DRM_AMD_DC_DCN2_0 diff --git a/drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c b/drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c index eca681d9d7f5..a1d49256fab7 100644 --- a/drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c +++ b/drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c @@ -3025,7 +3025,10 @@ bool bw_calcs(struct dc_context *ctx, populate_initial_data(pipe, pipe_count, data); - calcs_output->all_displays_in_sync = all_displays_in_sync(pipe, pipe_count); + if (ctx->dc->config.multi_mon_pp_mclk_switch) + calcs_output->all_displays_in_sync = all_displays_in_sync(pipe, pipe_count); + else + calcs_output->all_displays_in_sync = false; if (data->number_of_displays != 0) { uint8_t yclk_lvl, sclk_lvl; diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h index 3ef269f82478..5d4a2a9228f0 100644 --- a/drivers/gpu/drm/amd/display/dc/dc.h +++ b/drivers/gpu/drm/amd/display/dc/dc.h @@ -220,7 +220,7 @@ struct dc_config { bool power_down_display_on_boot; bool edp_not_connected; bool forced_clocks; - + bool multi_mon_pp_mclk_switch; }; enum visual_confirm { diff --git a/drivers/gpu/drm/amd/include/amd_shared.h b/drivers/gpu/drm/amd/include/amd_shared.h index a0a7211438f2..8889aaceec60 100644 --- a/drivers/gpu/drm/amd/include/amd_shared.h +++ b/drivers/gpu/drm/amd/include/amd_shared.h @@ -142,6 +142,7 @@ enum PP_FEATURE_MASK { enum DC_FEATURE_MASK { DC_FBC_MASK = 0x1, + DC_MULTI_MON_PP_MCLK_SWITCH_MASK = 0x2, }; enum amd_dpm_forced_level; |