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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: Shirish S <shirish.s@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Shirish S 2018-02-13 14:11:37 +05:30 committed by Alex Deucher
parent 843e3c7df6
commit 10eee2e873
1 changed files with 11 additions and 0 deletions
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11
drivers/gpu/drm/amd/display/dc/dce110/dce110_resource.c
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@ -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