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Date: Sun, 16 Dec 2007 16:54:58 -0800
From: Harvey Harrison <harvey.harrison@...il.com>
To: Ingo Molnar <mingo@...e.hu>
Cc: "H. Peter Anvin" <hpa@...or.com>,
LKML <linux-kernel@...r.kernel.org>,
Thomas Gleixner <tglx@...utronix.de>
Subject: [PATCH 3/4] x86: Introduce asm helpers in local_{32|64}.h
Handle the use of long on X86_32 and quad on X86_64
Signed-off-by: Harvey Harrison <harvey.harrison@...il.com>
---
include/asm-x86/asm.h | 12 ++++++++++++
include/asm-x86/local.h | 2 ++
include/asm-x86/local_32.h | 18 +++++++++---------
include/asm-x86/local_64.h | 18 +++++++++---------
4 files changed, 32 insertions(+), 18 deletions(-)
diff --git a/include/asm-x86/asm.h b/include/asm-x86/asm.h
index 8661ae7..1a6980a 100644
--- a/include/asm-x86/asm.h
+++ b/include/asm-x86/asm.h
@@ -8,6 +8,12 @@
# define _ASM_ALIGN " .balign 4 "
# define _ASM_MOV_UL " movl "
+# define _ASM_INC " incl "
+# define _ASM_DEC " decl "
+# define _ASM_ADD " addl "
+# define _ASM_SUB " subl "
+# define _ASM_XADD " xaddl "
+
#else
/* 64 bits */
@@ -15,6 +21,12 @@
# define _ASM_ALIGN " .balign 8 "
# define _ASM_MOV_UL " movq "
+# define _ASM_INC " incq "
+# define _ASM_DEC " decq "
+# define _ASM_ADD " addq "
+# define _ASM_SUB " subq "
+# define _ASM_XADD " xaddq "
+
#endif /* CONFIG_X86_32 */
#endif /* _ASM_X86_ASM_H */
diff --git a/include/asm-x86/local.h b/include/asm-x86/local.h
index 1e6b5af..194565b 100644
--- a/include/asm-x86/local.h
+++ b/include/asm-x86/local.h
@@ -2,8 +2,10 @@
#define _ARCH_LOCAL_H
#include <linux/percpu.h>
+
#include <asm/system.h>
#include <asm/atomic.h>
+#include <asm/asm.h>
typedef struct
{
diff --git a/include/asm-x86/local_32.h b/include/asm-x86/local_32.h
index f3bc4d9..33fa3ee 100644
--- a/include/asm-x86/local_32.h
+++ b/include/asm-x86/local_32.h
@@ -4,21 +4,21 @@
static inline void local_inc(local_t *l)
{
__asm__ __volatile__(
- "incl %0"
+ _ASM_INC "%0"
:"+m" (l->a.counter));
}
static inline void local_dec(local_t *l)
{
__asm__ __volatile__(
- "decl %0"
+ _ASM_DEC "%0"
:"+m" (l->a.counter));
}
static inline void local_add(long i, local_t *l)
{
__asm__ __volatile__(
- "addl %1,%0"
+ _ASM_ADD "%1,%0"
:"+m" (l->a.counter)
:"ir" (i));
}
@@ -26,7 +26,7 @@ static inline void local_add(long i, local_t *l)
static inline void local_sub(long i, local_t *l)
{
__asm__ __volatile__(
- "subl %1,%0"
+ _ASM_SUB "%1,%0"
:"+m" (l->a.counter)
:"ir" (i));
}
@@ -45,7 +45,7 @@ static inline int local_sub_and_test(long i, local_t *l)
unsigned char c;
__asm__ __volatile__(
- "subl %2,%0; sete %1"
+ _ASM_SUB "%2,%0; sete %1"
:"+m" (l->a.counter), "=qm" (c)
:"ir" (i) : "memory");
return c;
@@ -64,7 +64,7 @@ static inline int local_dec_and_test(local_t *l)
unsigned char c;
__asm__ __volatile__(
- "decl %0; sete %1"
+ _ASM_DEC "%0; sete %1"
:"+m" (l->a.counter), "=qm" (c)
: : "memory");
return c != 0;
@@ -83,7 +83,7 @@ static inline int local_inc_and_test(local_t *l)
unsigned char c;
__asm__ __volatile__(
- "incl %0; sete %1"
+ _ASM_INC "%0; sete %1"
:"+m" (l->a.counter), "=qm" (c)
: : "memory");
return c != 0;
@@ -103,7 +103,7 @@ static inline int local_add_negative(long i, local_t *l)
unsigned char c;
__asm__ __volatile__(
- "addl %2,%0; sets %1"
+ _ASM_ADD "%2,%0; sets %1"
:"+m" (l->a.counter), "=qm" (c)
:"ir" (i) : "memory");
return c;
@@ -127,7 +127,7 @@ static inline long local_add_return(long i, local_t *l)
/* Modern 486+ processor */
__i = i;
__asm__ __volatile__(
- "xaddl %0, %1;"
+ _ASM_XADD "%0, %1;"
:"+r" (i), "+m" (l->a.counter)
: : "memory");
return i + __i;
diff --git a/include/asm-x86/local_64.h b/include/asm-x86/local_64.h
index 7808f53..91983e2 100644
--- a/include/asm-x86/local_64.h
+++ b/include/asm-x86/local_64.h
@@ -4,21 +4,21 @@
static inline void local_inc(local_t *l)
{
__asm__ __volatile__(
- "incq %0"
+ _ASM_INC "%0"
:"+m" (l->a.counter));
}
static inline void local_dec(local_t *l)
{
__asm__ __volatile__(
- "decq %0"
+ _ASM_DEC "%0"
:"+m" (l->a.counter));
}
static inline void local_add(long i, local_t *l)
{
__asm__ __volatile__(
- "addq %1,%0"
+ _ASM_ADD "%1,%0"
:"+m" (l->a.counter)
:"ir" (i));
}
@@ -26,7 +26,7 @@ static inline void local_add(long i, local_t *l)
static inline void local_sub(long i, local_t *l)
{
__asm__ __volatile__(
- "subq %1,%0"
+ _ASM_SUB "%1,%0"
:"+m" (l->a.counter)
:"ir" (i));
}
@@ -45,7 +45,7 @@ static inline int local_sub_and_test(long i, local_t *l)
unsigned char c;
__asm__ __volatile__(
- "subq %2,%0; sete %1"
+ _ASM_SUB "%2,%0; sete %1"
:"+m" (l->a.counter), "=qm" (c)
:"ir" (i) : "memory");
return c;
@@ -64,7 +64,7 @@ static inline int local_dec_and_test(local_t *l)
unsigned char c;
__asm__ __volatile__(
- "decq %0; sete %1"
+ _ASM_DEC "%0; sete %1"
:"+m" (l->a.counter), "=qm" (c)
: : "memory");
return c != 0;
@@ -83,7 +83,7 @@ static inline int local_inc_and_test(local_t *l)
unsigned char c;
__asm__ __volatile__(
- "incq %0; sete %1"
+ _ASM_INC "%0; sete %1"
:"+m" (l->a.counter), "=qm" (c)
: : "memory");
return c != 0;
@@ -103,7 +103,7 @@ static inline int local_add_negative(long i, local_t *l)
unsigned char c;
__asm__ __volatile__(
- "addq %2,%0; sets %1"
+ _ASM_ADD "%2,%0; sets %1"
:"+m" (l->a.counter), "=qm" (c)
:"ir" (i) : "memory");
return c;
@@ -120,7 +120,7 @@ static inline long local_add_return(long i, local_t *l)
{
long __i = i;
__asm__ __volatile__(
- "xaddq %0, %1;"
+ _ASM_XADD "%0, %1;"
:"+r" (i), "+m" (l->a.counter)
: : "memory");
return i + __i;
--
1.5.4.rc0.1083.gf568
--
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