[Intel-gfx] [patch] avoid duplicate SaveHWState

[Shaohua Li]

i830PreInit already call SaveHWState(). When i830ScreenInit() calls into
i830EnterVT(), we call SaveHWState() again. It appears there is no
register change between the two SaveHWState(), so we can remove the
second SaveHWState() call. This can save time a little bit.

Index: intel-video/src/i830_driver.c
===================================================================
--- intel-video.orig/src/i830_driver.c
+++ intel-video/src/i830_driver.c
@@ -1398,7 +1398,7 @@ I830PreInit(ScrnInfoPtr pScrn, int flags
       return FALSE;
 
    pI830 = I830PTR(pScrn);
-   pI830->SaveGeneration = -1;
+   pI830->SaveGeneration = serverGeneration;
    pI830->pEnt = pEnt;
 
    pScrn->displayWidth = 640; /* default it */