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Commit 7e14eabc authored by Deepak Rawat's avatar Deepak Rawat Committed by Thomas Hellstrom
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drm/vmwgfx: Perform memory validations only when need full modeset. 



For cases when full modeset is not requested like page-flip, skip
memory validation as the topology is not changed.

Signed-off-by: default avatarDeepak Rawat <drawat@vmware.com>
Reviewed-by: default avatarThomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: default avatarThomas Hellstrom <thellstrom@vmware.com>
parent 5e24133e

drivers/gpu/drm/vmwgfx/vmwgfx_kms.c

+21 −2
Original line number Diff line number Diff line
@@ -1670,13 +1670,32 @@ static int 
vmw_kms_atomic_check_modeset(struct drm_device *dev,

			     struct drm_atomic_state *state)

{

	int ret;

	struct drm_crtc *crtc;

	struct drm_crtc_state *crtc_state;

	bool need_modeset = false;

	int i, ret;



	ret = drm_atomic_helper_check(dev, state);

	if (ret)

		return ret;



	if (!state->allow_modeset)

		return ret;



	/*

	 * Legacy path do not set allow_modeset properly like

	 * @drm_atomic_helper_update_plane, This will result in unnecessary call

	 * to vmw_kms_check_topology. So extra set of check.

	 */

	for_each_new_crtc_in_state(state, crtc, crtc_state, i) {

		if (drm_atomic_crtc_needs_modeset(crtc_state))

			need_modeset = true;

	}



	if (need_modeset)

		return vmw_kms_check_topology(dev, state);



	return ret;

}



static const struct drm_mode_config_funcs vmw_kms_funcs = {