diff options
| author | Eryk Brol <eryk.brol@amd.com> | 2020-08-14 21:50:19 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-09-16 00:52:41 +0300 |
| commit | 0749ddeb7d6c87e04446c068c03b097d4aa19173 (patch) | |
| tree | e2a10fcd5cb14d17896c941b952fe46d02cfa6ed /drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | |
| parent | 20cc44c9e82a9131c64d0a95d32b18e28d9728f4 (diff) | |
| download | linux-0749ddeb7d6c87e04446c068c03b097d4aa19173.tar.xz | |
drm/amd/display: Add DSC force disable to dsc_clock_en debugfs entry
[why]
For debug purposes we want not to enable DSC on certain connectors
even if algorithm deesires to do so, instead it should enable DSC
on other capable connectors or fail the atomic check.
[how]
Adding the third option to connector's debugfs entry dsc_clock_en.
Accepted inputs:
0x0 - connector is using default DSC enablement policy
0x1 - force enable DSC on the connector, if it supports DSC
0x2 - force disable DSC on the connector, if DSC is supported
Ex. # echo 0x2 > /sys/kernel/debug/dri/0/DP-1/dsc_clock_en
Signed-off-by: Eryk Brol <eryk.brol@amd.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 7 |
1 files changed, 4 insertions, 3 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 1fdc92a2c0c0..4684820e4dc8 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -4685,9 +4685,10 @@ create_stream_for_sink(struct amdgpu_dm_connector *aconnector, dc_link_get_link_cap(aconnector->dc_link)); #if defined(CONFIG_DRM_AMD_DC_DCN) - if (dsc_caps.is_dsc_supported) { + if (aconnector->dsc_settings.dsc_force_enable != DSC_CLK_FORCE_DISABLE && dsc_caps.is_dsc_supported) { /* Set DSC policy according to dsc_clock_en */ - dc_dsc_policy_set_enable_dsc_when_not_needed(aconnector->dsc_settings.dsc_clock_en); + dc_dsc_policy_set_enable_dsc_when_not_needed( + aconnector->dsc_settings.dsc_force_enable == DSC_CLK_FORCE_ENABLE); if (dc_dsc_compute_config(aconnector->dc_link->ctx->dc->res_pool->dscs[0], &dsc_caps, @@ -4697,7 +4698,7 @@ create_stream_for_sink(struct amdgpu_dm_connector *aconnector, &stream->timing.dsc_cfg)) stream->timing.flags.DSC = 1; /* Overwrite the stream flag if DSC is enabled through debugfs */ - if (aconnector->dsc_settings.dsc_clock_en) + if (aconnector->dsc_settings.dsc_force_enable == DSC_CLK_FORCE_ENABLE) stream->timing.flags.DSC = 1; if (stream->timing.flags.DSC && aconnector->dsc_settings.dsc_slice_width) |