drm/amd/display: Handle virtual hardware detect

commit 987b96eb860036ab79051fb271f7fbdc01c9daf5 upstream

If virtual hardware is detected, there is no reason to run the full
dc_commit_streams process, and DC can return true immediately.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Co-developed-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 8f9c60ed6f8b8347adcbebabf9c80cfd5f66f1f9..9b7ddd0e10a5c56851a8e5a564d9b480ec654bf8 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -1942,6 +1942,9 @@ enum dc_status dc_commit_streams(struct dc *dc,
        struct pipe_ctx *pipe;
        bool handle_exit_odm2to1 = false;
 
+       if (dc->ctx->dce_environment == DCE_ENV_VIRTUAL_HW)
+               return res;
+
        if (!streams_changed(dc, streams, stream_count))
                return res;