On 2023-08-15 17:29, Alex Deucher wrote:
> This reverts commit 27dd79c00aeab36cd7542c7a4481a32549038659.
>
> It appears MPC_SPLIT_DYNAMIC still causes problems with multiple
> displays on DCN2.0 hardware. Switch back to MPC_SPLIT_AVOID_MULT_DISP.
> This increases power usage with multiple displays, but avoids hangs.
>
> Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2475
> Cc: Rodrigo Siqueira <rodrigo.sique...@amd.com>
> Signed-off-by: Alex Deucher <alexander.deuc...@amd.com>
Reviewed-by: Harry Wentland <harry.wentl...@amd.com>
Harry
> ---
> drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
> b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
> index dfecb9602f49..000fe96203c4 100644
> --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
> +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
> @@ -712,7 +712,7 @@ static const struct dc_debug_options debug_defaults_drv =
> {
> .timing_trace = false,
> .clock_trace = true,
> .disable_pplib_clock_request = true,
> - .pipe_split_policy = MPC_SPLIT_DYNAMIC,
> + .pipe_split_policy = MPC_SPLIT_AVOID_MULT_DISP,
> .force_single_disp_pipe_split = false,
> .disable_dcc = DCC_ENABLE,
> .vsr_support = true,
