XFree86-fix-07-s3trio64v2gx+netfinity.patch

--- XFree86-4.2.0/xc/programs/Xserver/hw/xfree86/drivers/s3/newmmio.h.fix	Mon Jul  2 19:46:04 2001
+++ XFree86-4.2.0/xc/programs/Xserver/hw/xfree86/drivers/s3/newmmio.h	Mon Jan 21 08:18:14 2002
@@ -251,7 +251,7 @@
 #define WaitQueue(v)					\
 	if(!(pS3->PCIRetry)) {				\
 	   mem_barrier();				\
-	   while(inb(GP_STAT) & (0x0100 >> (v)));	\
+	   while(mmio_INB_GP_STAT() & (0x0100 >> (v)));	\
 	}
 
 #define CMD_REG_WIDTH  0x200  	/* select 32bit command register */
--- XFree86-4.2.0/xc/programs/Xserver/hw/xfree86/drivers/s3/s3_accel.c.fix	Sun Oct 28 12:33:44 2001
+++ XFree86-4.2.0/xc/programs/Xserver/hw/xfree86/drivers/s3/s3_accel.c	Mon Jan 21 08:22:08 2002
@@ -46,6 +46,7 @@
 
 static void S3Sync(ScrnInfoPtr pScrn)
 {
+	S3Ptr pS3 = S3PTR(pScrn);
 	WaitIdle();
 }
 
@@ -64,9 +65,7 @@
 static void S3SubsequentSolidFillRect(ScrnInfoPtr pScrn, int x, int y,
 				      int w, int h)
 {
-#ifdef S3_NEWMMIO
 	S3Ptr pS3 = S3PTR(pScrn);
-#endif
 
 	WaitQueue(5);
 	SET_CURPT((short)x, (short)y);
@@ -303,9 +302,8 @@
 					   int major, int minor,
 					   int err, int len, int octant)
 {
-#ifdef S3_NEWMMIO
 	S3Ptr pS3 = S3PTR(pScrn);
-#endif
+
 	unsigned short cmd;
 	int error, e1, e2;
 
--- XFree86-4.2.0/xc/programs/Xserver/hw/xfree86/drivers/s3/s3_dga.c.fix	Mon Jul  2 19:46:04 2001
+++ XFree86-4.2.0/xc/programs/Xserver/hw/xfree86/drivers/s3/s3_dga.c	Mon Jan 21 08:18:14 2002
@@ -314,5 +314,6 @@
 
 static void S3_Sync(ScrnInfoPtr pScrn)
 {
+	S3Ptr pS3 = S3PTR(pScrn);
 	WaitIdle();
 }
--- XFree86-4.2.0/xc/programs/Xserver/hw/xfree86/drivers/s3/s3_driver.c.fix	Thu Dec 27 07:24:19 2001
+++ XFree86-4.2.0/xc/programs/Xserver/hw/xfree86/drivers/s3/s3_driver.c	Mon Jan 21 08:18:14 2002
@@ -1569,7 +1569,20 @@
 
 	outb(0x3c6, 0x00);
 
-	outw(SUBSYS_CNTL, 0x8000 | 0x1000);
+/*
+* XXX: resetting the Trio64V2/GX causes trouble with the SGRAM memory bus
+* (gets out of sync?  same as setting CR88_6) which I don't know to fix,
+* so better not reset that chip and cross fingers...
+* This happens at least for some IBM Netfinity boxes (e.g. 7000M10) with 1MB SGRAM.
+*/
+	if (pS3->Chipset == PCI_CHIP_TRIO64V2_DXGX) {
+		outb(vgaCRIndex, 0x36);
+		tmp = inb(vgaCRReg);
+		if ((tmp & 0x0c) != 0x04) /* no SGRAM */
+		outw(SUBSYS_CNTL, 0x8000 | 0x1000);
+	}
+	else /* do normal reset for S3 chip... */
+		outw(SUBSYS_CNTL, 0x8000 | 0x1000);
 	outw(SUBSYS_CNTL, 0x4000 | 0x1000);
 
 	inw(SUBSYS_STAT);
@@ -1603,6 +1616,12 @@
 
 	WaitQueue(5);
 	SET_SCISSORS(0, 0, pS3->s3ScissR, pS3->s3ScissB);
+	if(pS3->s3Bpp > 2) {
+		if(pS3->S3NewMMIO)
+			SET_MULT_MISC(0x200);
+		else
+			SET_MULT_MISC(0);
+	}
 
 	outb(vgaCRIndex, 0x6f);
 
--- XFree86-4.2.0/xc/programs/Xserver/hw/xfree86/drivers/s3/s3_reg.h.fix	Mon Jul  2 19:46:04 2001
+++ XFree86-4.2.0/xc/programs/Xserver/hw/xfree86/drivers/s3/s3_reg.h	Mon Jan 21 08:18:14 2002
@@ -148,10 +148,23 @@
 					outw(p, (n) >> 16);	\
 				} else outw(p, n)
 
+/*
+ * mmio reads from GP_STAT
+ */
+#if !defined(__alpha__)
+#define mmio_INB_GP_STAT()	(*(((volatile unsigned char*)pS3->MMIOBase)+GP_STAT) & 0xff)
+#define mmio_INW_GP_STAT()	(*(((volatile unsigned short*)pS3->MMIOBase)+GP_STAT/2))
+#else
+#define mmio_INB_GP_STAT()	inb(GP_STAT)
+#define mmio_INW_GP_STAT()	inw(GP_STAT)
+#endif
 
 #define WaitIdle()	do {			\
 		mem_barrier();			\
-		while(inw(GP_STAT) & GPBUSY);	\
+		if (pS3->S3NewMMIO)			\
+		    while(mmio_INW_GP_STAT() & GPBUSY);	\
+		else				\
+		    while(inw(GP_STAT) & GPBUSY);	\
 	} while(0)
 
 
@@ -184,9 +197,12 @@
 
 #define CMD_REG_WIDTH	0x0000
 
-#define WaitQueue(n)	do {				\
+#define WaitQueue(n)	do {			\
 		mem_barrier();			\
-		while(inb(GP_STAT) & (0x0100 >> (n)));	\
+		if (pS3->S3NewMMIO)		\
+			while(mmio_INB_GP_STAT() & (0x0100 >> (n)));	\
+		else				\
+			while(inb(GP_STAT) & (0x0100 >> (n)));	\
 	} while (0)
 
 #define WaitQueue16_32(n16,n32)				\