Call amdgpu_present_set_screen_vrr from amdgpu_vrr_property_update

If the window is currently flipping.

This might make a difference when the property gets disabled: Variable
refresh will now be disabled immediately in that case, instead of only
when the window can no longer use page flipping at all.

Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>

src/amdgpu_drv.h

@@ -361,6 +361,7 @@ void AMDGPUWindowExposures_oneshot(WindowPtr pWin, RegionPtr pRegion
 				   );
 
 /* amdgpu_present.c */
+void amdgpu_present_set_screen_vrr(ScrnInfoPtr scrn, Bool vrr_enabled);
 Bool amdgpu_present_screen_init(ScreenPtr screen);
 
 /* amdgpu_sync.c */

src/amdgpu_kms.c

@@ -102,7 +102,14 @@ static inline struct amdgpu_window_priv *get_window_priv(WindowPtr win) {
 static void
 amdgpu_vrr_property_update(WindowPtr window, Bool variable_refresh)
 {
+	ScrnInfoPtr scrn = xf86ScreenToScrn(window->drawable.pScreen);
+	AMDGPUInfoPtr info = AMDGPUPTR(scrn);
+
 	get_window_priv(window)->variable_refresh = variable_refresh;
+
+	if (info->flip_window == window &&
+	    info->drmmode.present_flipping)
+		amdgpu_present_set_screen_vrr(scrn, variable_refresh);
 }
 
 /* Wrapper for xserver/dix/property.c:ProcChangeProperty */

src/amdgpu_present.c

@@ -90,7 +90,7 @@ amdgpu_present_get_ust_msc(RRCrtcPtr crtc, CARD64 *ust, CARD64 *msc)
 /*
  * Changes the variable refresh state for every CRTC on the screen.
  */
-static void
+void
 amdgpu_present_set_screen_vrr(ScrnInfoPtr scrn, Bool vrr_enabled)
 {
 	xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(scrn);