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drm/amd/display: Create debugging mechanism for Gaming FAMS

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[WHY]
To enable FAMS even during gaming sessions.

[HOW]
By leveraging a new dc.debug parameter.

Reviewed-by: Felipe Clark <felipe.clark@amd.com>
Acked-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com>
Signed-off-by: Gianna Binder <gianna.binder@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Gianna Binder 2023-06-17 17:17:40 -04:00 committed by Alex Deucher
parent 613a7956de
commit d5b5d6cb1d
3 changed files with 3 additions and 4 deletions
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1
drivers/gpu/drm/amd/display/dc/dc.h
View File

@ -850,6 +850,7 @@ struct dc_debug_options {
/* Enable dmub aux for legacy ddc */
bool enable_dmub_aux_for_legacy_ddc;
bool disable_fams;
bool disable_fams_gaming;
/* FEC/PSR1 sequence enable delay in 100us */
uint8_t fec_enable_delay_in100us;
bool enable_driver_sequence_debug;

3
drivers/gpu/drm/amd/display/dc/dcn30/dcn30_resource.c
View File

@ -1987,11 +1987,10 @@ bool dcn30_can_support_mclk_switch_using_fw_based_vblank_stretch(struct dc *dc,
if (!is_refresh_rate_support_mclk_switch_using_fw_based_vblank_stretch(context))
return false;
// check if freesync enabled
if (!context->streams[0]->allow_freesync)
return false;
if (context->streams[0]->vrr_active_variable)
if (context->streams[0]->vrr_active_variable && dc->debug.disable_fams_gaming)
return false;
context->streams[0]->fpo_in_use = true;

3
drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource_helpers.c
View File

@ -595,11 +595,10 @@ struct dc_stream_state *dcn32_can_support_mclk_switch_using_fw_based_vblank_stre
if (!is_refresh_rate_support_mclk_switch_using_fw_based_vblank_stretch(fpo_candidate_stream, fpo_vactive_margin_us))
return NULL;
// check if freesync enabled
if (!fpo_candidate_stream->allow_freesync)
return NULL;
if (fpo_candidate_stream->vrr_active_variable)
if (fpo_candidate_stream->vrr_active_variable && dc->debug.disable_fams_gaming)
return NULL;
return fpo_candidate_stream;