diff --git a/driver/xf86-video-sis/src/sis.h b/driver/xf86-video-sis/src/sis.h
index 46fca2a93..05f10e9d4 100644
--- a/driver/xf86-video-sis/src/sis.h
+++ b/driver/xf86-video-sis/src/sis.h
@@ -1005,7 +1005,9 @@ typedef struct {
     ScrnInfoPtr		pScrn;
     pciVideoPtr		PciInfo;
     int			PciBus, PciDevice, PciFunc;
+#ifndef XSERVER_LIBPCIACCESS
     PCITAG		PciTag;
+#endif
     EntityInfoPtr	pEnt;
     int			Chipset;
     unsigned char	ChipType;
diff --git a/driver/xf86-video-sis/src/sis_driver.c b/driver/xf86-video-sis/src/sis_driver.c
index 73779af75..9f40cae8b 100644
--- a/driver/xf86-video-sis/src/sis_driver.c
+++ b/driver/xf86-video-sis/src/sis_driver.c
@@ -3275,10 +3275,11 @@ SISPreInit(ScrnInfoPtr pScrn, int flags)
     pSiS->PciDevice = PCI_CFG_DEV(pSiS->PciInfo); /*SIS_PCI_DEVICE(pSiS->PciInfo);*/
     pSiS->PciFunc = PCI_CFG_FUNC(pSiS->PciInfo);  /*SIS_PCI_FUNC(pSiS->PciInfo);*/
 
+#ifndef XSERVER_LIBPCIACCESS
     pSiS->PciTag = pciTag(PCI_DEV_BUS(pSiS->PciInfo),
 			  PCI_DEV_DEV(pSiS->PciInfo),
 			  PCI_DEV_FUNC(pSiS->PciInfo));
-
+#endif
 #ifdef SIS_NEED_MAP_IOP
     /********************************************/
     /*     THIS IS BROKEN AND WON'T WORK        */
@@ -3901,7 +3902,9 @@ SISPreInit(ScrnInfoPtr pScrn, int flags)
        if(pSiSEnt) pSiSEnt->SiS_Pr = pSiS->SiS_Pr;
 #endif
        memset(pSiS->SiS_Pr, 0, sizeof(struct SiS_Private));
+#ifndef XSERVER_LIBPCIACCESS
        pSiS->SiS_Pr->PciTag = pSiS->PciTag;
+#endif
        pSiS->SiS_Pr->ChipType = pSiS->ChipType;
        pSiS->SiS_Pr->ChipRevision = pSiS->ChipRev;
        pSiS->SiS_Pr->SiS_Backup70xx = 0xff;
@@ -7130,7 +7133,9 @@ static Bool
 SISMapMem(ScrnInfoPtr pScrn)
 {
     SISPtr pSiS = SISPTR(pScrn);
+#ifndef XSERVER_LIBPCIACCESS
     int mmioFlags = VIDMEM_MMIO;
+#endif
 #ifdef SISDUALHEAD
     SISEntPtr pSiSEnt = pSiS->entityPrivate;
 #endif
@@ -7141,8 +7146,10 @@ SISMapMem(ScrnInfoPtr pScrn)
      * byte/short access.)
      */
 #if defined(__alpha__)
+#ifndef XSERVER_LIBPCIACCESS
     mmioFlags |= VIDMEM_SPARSE;
 #endif
+#endif
 
 #ifdef SISDUALHEAD
     if(pSiS->DualHeadMode) {
@@ -13993,6 +14000,7 @@ SiS_GetSetBIOSScratch(ScrnInfoPtr pScrn, UShort offset, UChar value)
        break;
     }
 
+#ifndef XSERVER_LIBPCIACCESS
 #ifdef SIS_USE_BIOS_SCRATCH
     if(SISPTR(pScrn)->Primary) {
        base = xf86MapVidMem(pScrn->scrnIndex, VIDMEM_MMIO, 0, 0x2000);
@@ -14010,6 +14018,7 @@ SiS_GetSetBIOSScratch(ScrnInfoPtr pScrn, UShort offset, UChar value)
 
        xf86UnMapVidMem(pScrn->scrnIndex, base, 0x2000);
     }
+#endif
 #endif
     return ret;
 }
diff --git a/driver/xf86-video-sis/src/vstruct.h b/driver/xf86-video-sis/src/vstruct.h
index 88f7eb659..5d7a98d49 100644
--- a/driver/xf86-video-sis/src/vstruct.h
+++ b/driver/xf86-video-sis/src/vstruct.h
@@ -237,8 +237,10 @@ struct SiS_Private
 	unsigned char			ChipType;
 	unsigned char			ChipRevision;
 #ifdef SIS_XORG_XF86
+#ifndef XSERVER_LIBPCIACCESS
 	PCITAG				PciTag;
 #endif
+#endif
 #ifdef SIS_LINUX_KERNEL
 	void				*ivideo;
 #endif