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drm/amd/display: Disable unbounded request mode during rotation

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[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@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Nasir Osman<nasir.osman@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Nasir Osman 2023-02-01 14:37:12 -05:00 committed by Alex Deucher
parent fa9b4155c3
commit ba76068465
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/amd/display/dc/dml/dcn314/dcn314_fpu.c
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@ -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;