Commit b7a287fa authored by Alex Deucher's avatar Alex Deucher
Browse files

drm/amd/display/dc: add helper for panic updates 



Add a DC helper for panic updates.

Reviewed-by: default avatarHarry Wentland <harry.wentland@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Cc: Lu Yao <yaolu@kylinos.cn>
Cc: Jocelyn Falempe <jfalempe@redhat.com>
Cc: Harry Wentland <harry.wentland@amd.com>
parent 98471006

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

+46 −0
Original line number Diff line number Diff line
@@ -270,4 +270,50 @@ void dc_3dlut_func_retain(struct dc_3dlut *lut) 
	kref_get(&lut->refcount);

}



void dc_plane_force_update_for_panic(struct dc_plane_state *plane_state,

				     bool clear_tiling)

{

	struct dc *dc;

	int i;



	if (!plane_state)

		return;



	dc = plane_state->ctx->dc;



	if (!dc || !dc->current_state)

		return;



	for (i = 0; i < dc->res_pool->pipe_count; i++) {

		struct pipe_ctx *pipe_ctx = &dc->current_state->res_ctx.pipe_ctx[i];



		if (!pipe_ctx)

			continue;



		if (dc->ctx->dce_version >= DCE_VERSION_MAX) {

			struct hubp *hubp = pipe_ctx->plane_res.hubp;

			if (!hubp)

				continue;

			/* if framebuffer is tiled, disable tiling */

			if (clear_tiling && hubp->funcs->hubp_clear_tiling)

				hubp->funcs->hubp_clear_tiling(hubp);



			/* force page flip to see the new content of the framebuffer */

			hubp->funcs->hubp_program_surface_flip_and_addr(hubp,

									&plane_state->address,

									true);

		} else {

			struct mem_input *mi = pipe_ctx->plane_res.mi;

			if (!mi)

				continue;

			/* if framebuffer is tiled, disable tiling */

			if (clear_tiling && mi->funcs->mem_input_clear_tiling)

				mi->funcs->mem_input_clear_tiling(mi);



			/* force page flip to see the new content of the framebuffer */

			mi->funcs->mem_input_program_surface_flip_and_addr(mi,

									   &plane_state->address,

									   true);

		}

	}

}

drivers/gpu/drm/amd/display/dc/dc_plane.h

+3 −0
Original line number Diff line number Diff line
@@ -34,4 +34,7 @@ const struct dc_plane_status *dc_plane_get_status( 
void dc_plane_state_retain(struct dc_plane_state *plane_state);

void dc_plane_state_release(struct dc_plane_state *plane_state);



void dc_plane_force_update_for_panic(struct dc_plane_state *plane_state,

				     bool clear_tiling);



#endif /* _DC_PLANE_H_ */