Attachment 450 Details for Bug 687 – Patch to fix bug in mga driver on Mystique hardware

[patch] Patch to fix bug in mga driver on Mystique hardware

xorg-x11-6.7.0-mga-storm-sync-fix.patch (text/plain), 1.00 KB, created by Mike A. Harris on 2004-07-08 00:21:37 UTC

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Creator: Mike A. Harris

Created: 2004-07-08 00:21:37 UTC

Size: 1.00 KB

patch

obsolete

>- Fixed bug in mga driver which caused hangs on some Matrox Mystique boards
>  of revision 0->2, which were caused by a previous upstream bugfix for
>  another issue.  xorg-x11-6.7.0-mga-storm-sync-fix.patch (#124028)
>
>Should fix bugzilla:  https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=124028
>Needs testing, and needs to be committed to X.Org CVS.
>
>--- xc/programs/Xserver/hw/xfree86/drivers/mga/mga_storm.c.mga-storm-sync-fix	2004-06-25 21:04:50.000000000 -0400
>+++ xc/programs/Xserver/hw/xfree86/drivers/mga/mga_storm.c	2004-06-25 21:23:46.000000000 -0400
>@@ -1076,8 +1076,8 @@
> 
>     CHECK_DMA_QUIESCENT(pMga, pScrn);
> 
>-    /* This reportedly causes a freeze for the Mystique. */
>-    if (pMga->Chipset != PCI_CHIP_MGA1064)
>+    /* MGAISBUSY() reportedly causes a freeze for Mystique revision 2 and older */
>+    if (!(pMga->Chipset == PCI_CHIP_MGA1064 && (pMga->ChipRev >= 0 && pMga->ChipRev <= 2)))
> 	while(MGAISBUSY());
>     /* flush cache before a read (mga-1064g 5.1.6) */
>     OUTREG8(MGAREG_CRTC_INDEX, 0);

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