On 2018-04-27 12:26 PM, Shirish S wrote:
> FBC is not applicable for the underlay pipe,
> hence disallow enabling and disabling of the same.
> 
> This also fixes the BUG hit of calling sleep in
> atomic context.
> 
> Signed-off-by: Shirish S <[email protected]>
> Reviewed-by: Roman Li <[email protected]>

Reviewed-by: Harry Wentland <[email protected]>

Harry

> ---
>  drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c | 7 ++++++-
>  1 file changed, 6 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c 
> b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
> index 5dbd433..64d0bca 100644
> --- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
> +++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
> @@ -2765,6 +2765,9 @@ static void dce110_program_front_end_for_pipe(
>       struct dc_plane_state *plane_state = pipe_ctx->plane_state;
>       struct xfm_grph_csc_adjustment adjust;
>       struct out_csc_color_matrix tbl_entry;
> +#if defined(CONFIG_DRM_AMD_DC_FBC)
> +     unsigned int underlay_idx = dc->res_pool->underlay_pipe_index;
> +#endif
>       unsigned int i;
>       DC_LOGGER_INIT();
>       memset(&tbl_entry, 0, sizeof(tbl_entry));
> @@ -2806,7 +2809,9 @@ static void dce110_program_front_end_for_pipe(
>       program_scaler(dc, pipe_ctx);
>  
>  #if defined(CONFIG_DRM_AMD_DC_FBC)
> -     if (dc->fbc_compressor && old_pipe->stream) {
> +     /* fbc not applicable on Underlay pipe */
> +     if (dc->fbc_compressor && old_pipe->stream &&
> +         pipe_ctx->pipe_idx != underlay_idx) {
>               if (plane_state->tiling_info.gfx8.array_mode == 
> DC_ARRAY_LINEAR_GENERAL)
>                       
> dc->fbc_compressor->funcs->disable_fbc(dc->fbc_compressor);
>               else
> 
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