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Commit 08058973 authored by Shirish S's avatar Shirish S Committed by Alex Deucher
Browse files

drm/amd/display: validate plane in dce110 for scaling 



CZ & ST support uptil a limit 2:1 downscaling, this patch
adds validate_plane hook, that shall be used to validate
the plane attributes sent by the user space based
on dce110 capabilities.

Signed-off-by: default avatarShirish S <shirish.s@amd.com>
Reviewed-by: default avatarHarry Wentland <Harry.Wentland@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent c21b68c5

drivers/gpu/drm/amd/display/dc/dce110/dce110_resource.c

+11 −0
Original line number Diff line number Diff line
@@ -846,6 +846,16 @@ static bool dce110_validate_bandwidth( 
	return result;

}



enum dc_status dce110_validate_plane(const struct dc_plane_state *plane_state,

				     struct dc_caps *caps)

{

	if (((plane_state->dst_rect.width * 2) < plane_state->src_rect.width) ||

	    ((plane_state->dst_rect.height * 2) < plane_state->src_rect.height))

		return DC_FAIL_SURFACE_VALIDATE;



	return DC_OK;

}



static bool dce110_validate_surface_sets(

		struct dc_state *context)

{
@@ -1021,6 +1031,7 @@ static const struct resource_funcs dce110_res_pool_funcs = { 
	.link_enc_create = dce110_link_encoder_create,

	.validate_guaranteed = dce110_validate_guaranteed,

	.validate_bandwidth = dce110_validate_bandwidth,

	.validate_plane = dce110_validate_plane,

	.acquire_idle_pipe_for_layer = dce110_acquire_underlay,

	.add_stream_to_ctx = dce110_add_stream_to_ctx,

	.validate_global = dce110_validate_global