From: Alvin Lee <Alvin.Lee2@xxxxxxx>
[Description]
- Add debug option for increasing number of phantom lines
Reviewed-by: Nevenko Stupar <Nevenko.Stupar@xxxxxxx>
Reviewed-by: Jun Lei <Jun.Lei@xxxxxxx>
Acked-by: Brian Chang <Brian.Chang@xxxxxxx>
Signed-off-by: Alvin Lee <Alvin.Lee2@xxxxxxx>
---
drivers/gpu/drm/amd/display/dc/dc.h | 1 +
drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c | 3 +++
2 files changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h
index be2a62f4df32..e827cee94e5e 100644
--- a/drivers/gpu/drm/amd/display/dc/dc.h
+++ b/drivers/gpu/drm/amd/display/dc/dc.h
@@ -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;
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
index c881c523c37a..4222c72f5284 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
@@ -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);
--
2.25.1
