From: Sung Lee <sung.lee@xxxxxxx>
[Why]
If system is overclocked, only 1 bounding box state will
be sent by SMU. This results in an empty state being copied
for DML calculations causing black screens and corruption.
[How]
Fully populate bounding box before duplicating last state.
Signed-off-by: Sung Lee <sung.lee@xxxxxxx>
Reviewed-by: Tony Cheng <Tony.Cheng@xxxxxxx>
Acked-by: Qingqing Zhuo <Qingqing.Zhuo@xxxxxxx>
---
drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c
index 674376428916..d6d78438ea08 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c
@@ -1616,11 +1616,11 @@ static void update_bw_bounding_box(struct dc *dc, struct clk_bw_params *bw_param
dcn2_1_soc.clock_limits[i] = clock_limits[i];
if (clk_table->num_entries) {
dcn2_1_soc.num_states = clk_table->num_entries + 1;
+ /* fill in min DF PState */
+ dcn2_1_soc.clock_limits[1] = construct_low_pstate_lvl(clk_table, closest_clk_lvl);
/* duplicate last level */
dcn2_1_soc.clock_limits[dcn2_1_soc.num_states] = dcn2_1_soc.clock_limits[dcn2_1_soc.num_states - 1];
dcn2_1_soc.clock_limits[dcn2_1_soc.num_states].state = dcn2_1_soc.num_states;
- /* fill in min DF PState */
- dcn2_1_soc.clock_limits[1] = construct_low_pstate_lvl(clk_table, closest_clk_lvl);
}
dml_init_instance(&dc->dml, &dcn2_1_soc, &dcn2_1_ip, DML_PROJECT_DCN21);
--
2.17.1
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