# see https://bugs.freedesktop.org/show_bug.cgi?id=18028 for the bug this patch fixes
--- xf86-video-sis-0.10.4.orig/src/sis_driver.c	2012-03-24 03:52:44.000000000 +0100
+++ xf86-video-sis-0.10.4/src/sis_driver.c	2012-08-15 14:58:38.662556982 +0200
@@ -7344,7 +7344,12 @@
         if(pSiSEnt->MapCountIOBase) {
 	    pSiSEnt->MapCountIOBase--;
 	    if((pSiSEnt->MapCountIOBase == 0) || (pSiSEnt->forceUnmapIOBase)) {
+
+#ifndef XSERVER_LIBPCIACCESS
 		xf86UnMapVidMem(pScrn->scrnIndex, (pointer)pSiSEnt->IOBase, (pSiS->mmioSize * 1024));
+#else
+	        pci_device_unmap_range(pSiS->PciInfo, pSiSEnt->IOBase, (pSiS->mmioSize * 1024));
+#endif
 		pSiSEnt->IOBase = NULL;
 		pSiSEnt->MapCountIOBase = 0;
 		pSiSEnt->forceUnmapIOBase = FALSE;
@@ -7355,7 +7360,11 @@
 	if(pSiSEnt->MapCountIOBaseDense) {
 	    pSiSEnt->MapCountIOBaseDense--;
 	    if((pSiSEnt->MapCountIOBaseDense == 0) || (pSiSEnt->forceUnmapIOBaseDense)) {
+#ifndef XSERVER_LIBPCIACCESS
 		xf86UnMapVidMem(pScrn->scrnIndex, (pointer)pSiSEnt->IOBaseDense, (pSiS->mmioSize * 1024));
+#else
+		pci_device_unmap_range(pSiS->PciInfo, (pointer)pSiSEnt->IOBaseDense, (pSiS->mmioSize * 1024));
+#endif
 		pSiSEnt->IOBaseDense = NULL;
 		pSiSEnt->MapCountIOBaseDense = 0;
 		pSiSEnt->forceUnmapIOBaseDense = FALSE;
@@ -7366,7 +7375,11 @@
 	if(pSiSEnt->MapCountFbBase) {
 	    pSiSEnt->MapCountFbBase--;
 	    if((pSiSEnt->MapCountFbBase == 0) || (pSiSEnt->forceUnmapFbBase)) {
+#ifndef XSERVER_LIBPCIACCESS
 		xf86UnMapVidMem(pScrn->scrnIndex, (pointer)pSiSEnt->RealFbBase, pSiS->FbMapSize);
+#else
+		pci_device_unmap_range(pSiS->PciInfo, (pointer)pSiSEnt->RealFbBase, pSiS->FbMapSize);
+#endif
 		pSiSEnt->FbBase = pSiSEnt->RealFbBase = NULL;
 		pSiSEnt->MapCountFbBase = 0;
 		pSiSEnt->forceUnmapFbBase = FALSE;
@@ -7376,14 +7389,28 @@
 	}
     } else {
 #endif
+#ifndef XSERVER_LIBPCIACCESS
 	xf86UnMapVidMem(pScrn->scrnIndex, (pointer)pSiS->IOBase, (pSiS->mmioSize * 1024));
+#else
+	pci_device_unmap_range(pSiS->PciInfo, (pointer)pSiS->IOBase, (pSiS->mmioSize * 1024));
+#endif
 	pSiS->IOBase = NULL;
 #ifdef __alpha__
+#ifndef XSERVER_LIBPCIACCESS
 	xf86UnMapVidMem(pScrn->scrnIndex, (pointer)pSiS->IOBaseDense, (pSiS->mmioSize * 1024));
+#else
+	pci_device_unmap_range(pSiS->PciInfo, (pointer)pSiS->IOBaseDense, (pSiS->mmioSize * 1024));
+#endif
 	pSiS->IOBaseDense = NULL;
 #endif
+
+#ifndef XSERVER_LIBPCIACCESS
 	xf86UnMapVidMem(pScrn->scrnIndex, (pointer)pSiS->RealFbBase, pSiS->FbMapSize);
+#else
+	pci_device_unmap_range(pSiS->PciInfo, (pointer)pSiS->RealFbBase, pSiS->FbMapSize);
+#endif
 	pSiS->FbBase = pSiS->RealFbBase = NULL;
+
 #ifdef SISDUALHEAD
     }
 #endif