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Date: Wed, 14 Jan 2009 23:36:28 -0800
From: Harvey Harrison <harvey.harrison@...il.com>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Andrew Morton <akpm@...ux-foundation.org>,
LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH 5/7] unaligned: wire up h8300 and m32r arches
Provide arch overrides using memmove to avoid any functional
changes. At a later time these arches should be able to just
use the common header directly, but this is not certain currently.
Signed-off-by: Harvey Harrison <harvey.harrison@...il.com>
---
arch/h8300/include/asm/unaligned.h | 51 +++++++++++++++++++++++++++---
include/asm-m32r/unaligned.h | 60 ++++++++++++++++++++++++++++--------
2 files changed, 93 insertions(+), 18 deletions(-)
diff --git a/arch/h8300/include/asm/unaligned.h b/arch/h8300/include/asm/unaligned.h
index b8d06c7..a184b55 100644
--- a/arch/h8300/include/asm/unaligned.h
+++ b/arch/h8300/include/asm/unaligned.h
@@ -1,11 +1,52 @@
#ifndef _ASM_H8300_UNALIGNED_H
#define _ASM_H8300_UNALIGNED_H
-#include <linux/unaligned/be_memmove.h>
-#include <linux/unaligned/le_byteshift.h>
-#include <linux/unaligned/generic.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
-#define get_unaligned __get_unaligned_be
-#define put_unaligned __put_unaligned_be
+/* Use memmove here, so gcc does not insert a __builtin_memcpy. */
+static inline u16 __arch_load_cpu16_noalign(const void *p)
+{
+ u16 tmp;
+ memmove(&tmp, p, 2);
+ return tmp;
+}
+#define __arch_load_cpu16_noalign __arch_load_cpu16_noalign
+
+static inline u32 __arch_load_cpu32_noalign(const void *p)
+{
+ u32 tmp;
+ memmove(&tmp, p, 4);
+ return tmp;
+}
+#define __arch_load_cpu32_noalign __arch_load_cpu32_noalign
+
+static inline u64 __arch_load_cpu16_noalign(const void *p)
+{
+ u64 tmp;
+ memmove(&tmp, p, 8);
+ return tmp;
+}
+#define __arch_load_cpu64_noalign __arch_load_cpu64_noalign
+
+static inline void __arch_store_cpu16_noalign(void *p, u16 val)
+{
+ memmove(p, &val, 2);
+}
+#define __arch_store_cpu16_noalign __arch_store_cpu16_noalign
+
+static inline void __arch_store_cpu32_noalign(void *p, u32 val)
+{
+ memmove(p, &val, 4);
+}
+#define __arch_store_cpu32_noalign __arch_store_cpu32_noalign
+
+static inline void __arch_store_cpu64_noalign(void *p, u64 val)
+{
+ memmove(p, &val, 8);
+}
+#define __arch_store_cpu64_noalign __arch_store_cpu64_noalign
+
+#include <linux/unaligned.h>
#endif /* _ASM_H8300_UNALIGNED_H */
diff --git a/include/asm-m32r/unaligned.h b/include/asm-m32r/unaligned.h
index 377eb20..a676014 100644
--- a/include/asm-m32r/unaligned.h
+++ b/include/asm-m32r/unaligned.h
@@ -1,18 +1,52 @@
#ifndef _ASM_M32R_UNALIGNED_H
#define _ASM_M32R_UNALIGNED_H
-#if defined(__LITTLE_ENDIAN__)
-# include <linux/unaligned/le_memmove.h>
-# include <linux/unaligned/be_byteshift.h>
-# include <linux/unaligned/generic.h>
-# define get_unaligned __get_unaligned_le
-# define put_unaligned __put_unaligned_le
-#else
-# include <linux/unaligned/be_memmove.h>
-# include <linux/unaligned/le_byteshift.h>
-# include <linux/unaligned/generic.h>
-# define get_unaligned __get_unaligned_be
-# define put_unaligned __put_unaligned_be
-#endif
+#include <linux/kernel.h>
+#include <linux/string.h>
+/* Use memmove here, so gcc does not insert a __builtin_memcpy. */
+
+static inline u16 __arch_load_cpu16_noalign(const void *p)
+{
+ u16 tmp;
+ memmove(&tmp, p, 2);
+ return tmp;
+}
+#define __arch_load_cpu16_noalign __arch_load_cpu16_noalign
+
+static inline u32 __arch_load_cpu32_noalign(const void *p)
+{
+ u32 tmp;
+ memmove(&tmp, p, 4);
+ return tmp;
+}
+#define __arch_load_cpu32_noalign __arch_load_cpu32_noalign
+
+static inline u64 __arch_load_cpu16_noalign(const void *p)
+{
+ u64 tmp;
+ memmove(&tmp, p, 8);
+ return tmp;
+}
+#define __arch_load_cpu64_noalign __arch_load_cpu64_noalign
+
+static inline void __arch_store_cpu16_noalign(void *p, u16 val)
+{
+ memmove(p, &val, 2);
+}
+#define __arch_store_cpu16_noalign __arch_store_cpu16_noalign
+
+static inline void __arch_store_cpu32_noalign(void *p, u32 val)
+{
+ memmove(p, &val, 4);
+}
+#define __arch_store_cpu32_noalign __arch_store_cpu32_noalign
+
+static inline void __arch_store_cpu64_noalign(void *p, u64 val)
+{
+ memmove(p, &val, 8);
+}
+#define __arch_store_cpu64_noalign __arch_store_cpu64_noalign
+
+#include <linux/unaligned.h>
#endif /* _ASM_M32R_UNALIGNED_H */
--
1.6.1.212.g4b3ec
--
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