[POWERPC] Merge 32 and 64 bits asm-powerpc/io.h

powerpc: Merge 32 and 64 bits asm-powerpc/io.h

The rework on io.h done for the new hookable accessors made it easier,
so I just finished the work and merged 32 and 64 bits io.h for arch/powerpc.

arch/ppc still uses the old version in asm-ppc, there is just too much gunk
in there that I really can't be bothered trying to cleanup.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 5 insertions, 90 deletions

diff --git a/include/asm-powerpc/eeh.h b/include/asm-powerpc/eeh.h
index 66481bbf270a..b886bec67016 100644
--- a/include/asm-powerpc/eeh.h
+++ b/include/asm-powerpc/eeh.h
@@ -169,104 +169,19 @@ static inline u64 eeh_readq_be(const volatile void __iomem *addr)
 	return val;
 }
 
-#define EEH_CHECK_ALIGN(v,a) \
-	((((unsigned long)(v)) & ((a) - 1)) == 0)
-
-static inline void eeh_memset_io(volatile void __iomem *addr, int c,
-				 unsigned long n)
-{
-	void *p = (void __force *)addr;
-	u32 lc = c;
-	lc |= lc << 8;
-	lc |= lc << 16;
-
-	__asm__ __volatile__ ("sync" : : : "memory");
-	while(n && !EEH_CHECK_ALIGN(p, 4)) {
-		*((volatile u8 *)p) = c;
-		p++;
-		n--;
-	}
-	while(n >= 4) {
-		*((volatile u32 *)p) = lc;
-		p += 4;
-		n -= 4;
-	}
-	while(n) {
-		*((volatile u8 *)p) = c;
-		p++;
-		n--;
-	}
-	__asm__ __volatile__ ("sync" : : : "memory");
-}
-static inline void eeh_memcpy_fromio(void *dest, const volatile void __iomem *src,
+static inline void eeh_memcpy_fromio(void *dest, const
+				     volatile void __iomem *src,
 				     unsigned long n)
 {
-	void *vsrc = (void __force *) src;
-	void *destsave = dest;
-	unsigned long nsave = n;
-
-	__asm__ __volatile__ ("sync" : : : "memory");
-	while(n && (!EEH_CHECK_ALIGN(vsrc, 4) || !EEH_CHECK_ALIGN(dest, 4))) {
-		*((u8 *)dest) = *((volatile u8 *)vsrc);
-		__asm__ __volatile__ ("eieio" : : : "memory");
-		vsrc++;
-		dest++;
-		n--;
-	}
-	while(n > 4) {
-		*((u32 *)dest) = *((volatile u32 *)vsrc);
-		__asm__ __volatile__ ("eieio" : : : "memory");
-		vsrc += 4;
-		dest += 4;
-		n -= 4;
-	}
-	while(n) {
-		*((u8 *)dest) = *((volatile u8 *)vsrc);
-		__asm__ __volatile__ ("eieio" : : : "memory");
-		vsrc++;
-		dest++;
-		n--;
-	}
-	__asm__ __volatile__ ("sync" : : : "memory");
+	_memcpy_fromio(dest, src, n);
 
 	/* Look for ffff's here at dest[n].  Assume that at least 4 bytes
 	 * were copied. Check all four bytes.
 	 */
-	if ((nsave >= 4) &&
-		(EEH_POSSIBLE_ERROR((*((u32 *) destsave+nsave-4)), u32))) {
-		eeh_check_failure(src, (*((u32 *) destsave+nsave-4)));
-	}
+	if (n >= 4 && EEH_POSSIBLE_ERROR(*((u32 *)(dest + n - 4)), u32))
+		eeh_check_failure(src, *((u32 *)(dest + n - 4)));
 }
 
-static inline void eeh_memcpy_toio(volatile void __iomem *dest, const void *src,
-				   unsigned long n)
-{
-	void *vdest = (void __force *) dest;
-
-	__asm__ __volatile__ ("sync" : : : "memory");
-	while(n && (!EEH_CHECK_ALIGN(vdest, 4) || !EEH_CHECK_ALIGN(src, 4))) {
-		*((volatile u8 *)vdest) = *((u8 *)src);
-		src++;
-		vdest++;
-		n--;
-	}
-	while(n > 4) {
-		*((volatile u32 *)vdest) = *((volatile u32 *)src);
-		src += 4;
-		vdest += 4;
-		n-=4;
-	}
-	while(n) {
-		*((volatile u8 *)vdest) = *((u8 *)src);
-		src++;
-		vdest++;
-		n--;
-	}
-	__asm__ __volatile__ ("sync" : : : "memory");
-}
-
-#undef EEH_CHECK_ALIGN
-
 /* in-string eeh macros */
 static inline void eeh_readsb(const volatile void __iomem *addr, void * buf,
 			      int ns)