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drm/amd/display: Add debug options for increasing phantom lines 

[Description]
- Add debug option for increasing number of phantom lines

Reviewed-by: Nevenko Stupar <Nevenko.Stupar@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Brian Chang <Brian.Chang@amd.com>
Signed-off-by: Alvin Lee <Alvin.Lee2@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alvin Lee 2022-11-11 12:14:34 -05:00 committed by Alex Deucher
parent fe4e2662b2
commit e49c5e1279
2 changed files with 4 additions and 0 deletions
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1
drivers/gpu/drm/amd/display/dc/dc.h
View File

@ -852,6 +852,7 @@ struct dc_debug_options {
unsigned int force_subvp_num_ways;
unsigned int force_mall_ss_num_ways;
bool alloc_extra_way_for_cursor;
uint32_t subvp_extra_lines;
bool force_usr_allow;
/* uses value at boot and disables switch */
bool disable_dtb_ref_clk_switch;

3
drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
View File

@ -585,6 +585,9 @@ void dcn32_set_phantom_stream_timing(struct dc *dc,
num_dpp = vba->NoOfDPP[vba->VoltageLevel][vba->maxMpcComb][vba->pipe_plane[pipe_idx]];
phantom_vactive += num_dpp > 1 ? vba->meta_row_height[vba->pipe_plane[pipe_idx]] : 0;
/* dc->debug.subvp_extra_lines 0 by default*/
phantom_vactive += dc->debug.subvp_extra_lines;
// For backporch of phantom pipe, use vstartup of the main pipe
phantom_bp = get_vstartup(&context->bw_ctx.dml, pipes, pipe_cnt, pipe_idx);