patch-2.4.23 linux-2.4.23/drivers/char/drm/r128_drv.h

• Lines: 82
• Date: 2003-11-28 10:26:20.000000000 -0800
• Orig file: linux-2.4.22/drivers/char/drm/r128_drv.h
• Orig date: 2002-11-28 15:53:12.000000000 -0800

diff -urN linux-2.4.22/drivers/char/drm/r128_drv.h linux-2.4.23/drivers/char/drm/r128_drv.h
@@ -33,9 +33,10 @@
 
 #ifndef __R128_DRV_H__
 #define __R128_DRV_H__
+#include <asm/delay.h>
 
-#define GET_RING_HEAD( ring )		le32_to_cpu( *(ring)->head )
-#define SET_RING_HEAD( ring, val )	*(ring)->head = cpu_to_le32( val )
+#define GET_RING_HEAD(ring)		readl(  (volatile u32 *) (ring)->head )
+#define SET_RING_HEAD(ring,val)		writel( (val), (volatile u32 *) (ring)->head )
 
 typedef struct drm_r128_freelist {
    	unsigned int age;
@@ -384,44 +385,11 @@
 #define R128_BASE(reg)		((unsigned long)(dev_priv->mmio->handle))
 #define R128_ADDR(reg)		(R128_BASE( reg ) + reg)
 
-#define R128_DEREF(reg)		*(volatile u32 *)R128_ADDR( reg )
-#ifdef __alpha__
-#define R128_READ(reg)		(_R128_READ((u32 *)R128_ADDR(reg)))
-static inline u32 _R128_READ(u32 *addr)
-{
-	mb();
-	return *(volatile u32 *)addr;
-}
-#define R128_WRITE(reg,val)						\
-do {									\
-	wmb();								\
-	R128_DEREF(reg) = val;						\
-} while (0)
-#else
-#define R128_READ(reg)		le32_to_cpu( R128_DEREF( reg ) )
-#define R128_WRITE(reg,val)						\
-do {									\
-	R128_DEREF( reg ) = cpu_to_le32( val );				\
-} while (0)
-#endif
+#define R128_READ(reg)		readl(  (volatile u32 *) R128_ADDR(reg) )
+#define R128_WRITE(reg,val)	writel( (val) , (volatile u32 *) R128_ADDR(reg))
 
-#define R128_DEREF8(reg)	*(volatile u8 *)R128_ADDR( reg )
-#ifdef __alpha__
-#define R128_READ8(reg)		_R128_READ8((u8 *)R128_ADDR(reg))
-static inline u8 _R128_READ8(u8 *addr)
-{
-	mb();
-	return *(volatile u8 *)addr;
-}
-#define R128_WRITE8(reg,val)						\
-do {									\
-	wmb();								\
-	R128_DEREF8(reg) = val;						\
-} while (0)
-#else
-#define R128_READ8(reg)		R128_DEREF8( reg )
-#define R128_WRITE8(reg,val)	do { R128_DEREF8( reg ) = val; } while (0)
-#endif
+#define R128_READ8(reg)		readb(  (volatile u8 *) R128_ADDR(reg) )
+#define R128_WRITE8(reg,val)	writeb( (val), (volatile u8 *) R128_ADDR(reg) )
 
 #define R128_WRITE_PLL(addr,val)					\
 do {									\
@@ -470,6 +438,7 @@
 		return -EBUSY;						\
 	}								\
  __ring_space_done: ;							\
+  break;								\
 } while (0)
 
 #define VB_AGE_TEST_WITH_RETURN( dev_priv )				\
@@ -493,7 +462,11 @@
  * Ring control
  */
 
+#if defined(__powerpc__)
+#define r128_flush_write_combine()	(void) GET_RING_HEAD( &dev_priv->ring )
+#else
 #define r128_flush_write_combine()	mb()
+#endif
 
 
 #define R128_VERBOSE	0