From: Nasir Osman <nasir.osman@xxxxxxx>
[why]
HUBP_UNBOUNDED_REQ_MODE being enabled while the display is rotated (eg.
going from Portrait mode to Landscape mode) appears to be causing a
p-state hang, specifically during full screen mode on the Tiktok PC app.
Unbounded request mode doesn't appear to be supported with rotation
configs, hence disabling it.
[how]
Within DML, modified unbounded request mode to be configured only when
the rotation angle of the plane is 0.
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@xxxxxxx>
Acked-by: Qingqing Zhuo <qingqing.zhuo@xxxxxxx>
Signed-off-by: Nasir Osman<nasir.osman@xxxxxxx>
---
drivers/gpu/drm/amd/display/dc/dml/dcn314/dcn314_fpu.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn314/dcn314_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn314/dcn314_fpu.c
index 6a1cf6adea77..a86a3a9fcdb7 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn314/dcn314_fpu.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn314/dcn314_fpu.c
@@ -346,7 +346,8 @@ int dcn314_populate_dml_pipes_from_context_fpu(struct dc *dc, struct dc_state *c
context->bw_ctx.dml.ip.det_buffer_size_kbytes = DCN3_14_DEFAULT_DET_SIZE;
dc->config.enable_4to1MPC = false;
- if (pipe_cnt == 1 && pipe->plane_state && !dc->debug.disable_z9_mpc) {
+ if (pipe_cnt == 1 && pipe->plane_state
+ && pipe->plane_state->rotation == ROTATION_ANGLE_0 && !dc->debug.disable_z9_mpc) {
if (is_dual_plane(pipe->plane_state->format)
&& pipe->plane_state->src_rect.width <= 1920 && pipe->plane_state->src_rect.height <= 1080) {
dc->config.enable_4to1MPC = true;
--
2.25.1
