Commit b06b7680 authored by Leon Elazar's avatar Leon Elazar Committed by Alex Deucher
Browse files

drm/amd/display: blank mechanism for supporting MPO 



blank/unblanck functionality apply_ctx_for_surface will update planes visibility
by manipulating Blender and CRTC HW modules.

Signed-off-by: default avatarLeon Elazar <leon.elazar@amd.com>
Reviewed-by: default avatarDmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Reviewed-by: default avatarTony Cheng <Tony.Cheng@amd.com>
Acked-by: default avatarHarry Wentland <Harry.Wentland@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent cf388c0d

drivers/gpu/drm/amd/display/dc/core/dc.c

+0 −4
Original line number Diff line number Diff line
@@ -1246,10 +1246,6 @@ bool dc_pre_update_surfaces_to_target( 
					core_dc,

					&context->res_ctx.pipe_ctx[j],

					context);



			if (!new_surfaces[i]->visible)

				context->res_ctx.pipe_ctx[j].tg->funcs->set_blank(

						context->res_ctx.pipe_ctx[j].tg, true);

		}



unexpected_fail:

drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c

+37 −5
Original line number Diff line number Diff line
@@ -1409,20 +1409,52 @@ static void set_default_colors(struct pipe_ctx *pipe_ctx) 
					pipe_ctx->opp, &default_adjust);

}



static void program_blender(const struct core_dc *dc,



/*******************************************************************************

 * In order to turn on/off specific surface we will program

 * Blender + CRTC

 *

 * In case that we have two surfaces and they have a different visibility

 * we can't turn off the CRTC since it will turn off the entire display

 *

 * |----------------------------------------------- |

 * |bottom pipe|curr pipe  |              |         |

 * |Surface    |Surface    | Blender      |  CRCT   |

 * |visibility |visibility | Configuration|         |

 * |------------------------------------------------|

 * |   off     |    off    | CURRENT_PIPE | blank   |

 * |   off     |    on     | CURRENT_PIPE | unblank |

 * |   on      |    off    | OTHER_PIPE   | unblank |

 * |   on      |    on     | BLENDING     | unblank |

 * -------------------------------------------------|

 *

 ******************************************************************************/

static void program_surface_visibility(const struct core_dc *dc,

		struct pipe_ctx *pipe_ctx)

{

	enum blnd_mode blender_mode = BLND_MODE_CURRENT_PIPE;

	bool blank_target = false;



	if (pipe_ctx->bottom_pipe) {



		/* For now we are supporting only two pipes */

		ASSERT(pipe_ctx->bottom_pipe->bottom_pipe == NULL);



		if (pipe_ctx->bottom_pipe->surface->public.visible) {

			if (pipe_ctx->surface->public.visible)

				blender_mode = BLND_MODE_BLENDING;

			else

				blender_mode = BLND_MODE_OTHER_PIPE;

		}

	}



		} else if (!pipe_ctx->surface->public.visible)

			blank_target = true;



	} else if (!pipe_ctx->surface->public.visible)

		blank_target = true;



	dce_set_blender_mode(dc->hwseq, pipe_ctx->pipe_idx, blender_mode);

	pipe_ctx->tg->funcs->set_blank(pipe_ctx->tg, blank_target);



}



/**
@@ -1495,7 +1527,7 @@ static void set_plane_config( 
	pipe_ctx->scl_data.lb_params.alpha_en = pipe_ctx->bottom_pipe != 0;

	program_scaler(dc, pipe_ctx);



	program_blender(dc, pipe_ctx);

	program_surface_visibility(dc, pipe_ctx);



	mi->funcs->mem_input_program_surface_config(

			mi,
@@ -1920,7 +1952,7 @@ static void dce110_apply_ctx_for_surface( 
			continue;



		dce110_program_front_end_for_pipe(dc, pipe_ctx);

		program_blender(dc, pipe_ctx);

		program_surface_visibility(dc, pipe_ctx);



	}

}