From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 23 Apr 2014 17:50:20 +0000 (+0200)
Subject: mn10300: Provide atomic_{or,xor,and}
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=ddb7573ff68964e7b3b72eeb9cde1384c4c6ba83;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

mn10300: Provide atomic_{or,xor,and}

Implement atomic logic ops -- atomic_{or,xor,and}.

These will replace the atomic_{set,clear}_mask functions that are
available on some archs.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---

diff --git a/arch/mn10300/include/asm/atomic.h b/arch/mn10300/include/asm/atomic.h
index 5be655e83e70..03eea8158cf9 100644
--- a/arch/mn10300/include/asm/atomic.h
+++ b/arch/mn10300/include/asm/atomic.h
@@ -89,6 +89,12 @@ static inline int atomic_##op##_return(int i, atomic_t *v)		\
 ATOMIC_OPS(add)
 ATOMIC_OPS(sub)
 
+#define CONFIG_ARCH_HAS_ATOMIC_OR
+
+ATOMIC_OP(and)
+ATOMIC_OP(or)
+ATOMIC_OP(xor)
+
 #undef ATOMIC_OPS
 #undef ATOMIC_OP_RETURN
 #undef ATOMIC_OP
@@ -134,31 +140,9 @@ static inline void atomic_dec(atomic_t *v)
  *
  * Atomically clears the bits set in mask from the memory word specified.
  */
-static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr)
+static inline __deprecated void atomic_clear_mask(unsigned int mask, atomic_t *v)
 {
-#ifdef CONFIG_SMP
-	int status;
-
-	asm volatile(
-		"1:	mov	%3,(_AAR,%2)	\n"
-		"	mov	(_ADR,%2),%0	\n"
-		"	and	%4,%0		\n"
-		"	mov	%0,(_ADR,%2)	\n"
-		"	mov	(_ADR,%2),%0	\n"	/* flush */
-		"	mov	(_ASR,%2),%0	\n"
-		"	or	%0,%0		\n"
-		"	bne	1b		\n"
-		: "=&r"(status), "=m"(*addr)
-		: "a"(ATOMIC_OPS_BASE_ADDR), "r"(addr), "r"(~mask)
-		: "memory", "cc");
-#else
-	unsigned long flags;
-
-	mask = ~mask;
-	flags = arch_local_cli_save();
-	*addr &= mask;
-	arch_local_irq_restore(flags);
-#endif
+	atomic_and(~mask, v);
 }
 
 /**
@@ -168,30 +152,9 @@ static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr)
  *
  * Atomically sets the bits set in mask from the memory word specified.
  */
-static inline void atomic_set_mask(unsigned long mask, unsigned long *addr)
+static inline __deprecated void atomic_set_mask(unsigned int mask, atomic_t *v)
 {
-#ifdef CONFIG_SMP
-	int status;
-
-	asm volatile(
-		"1:	mov	%3,(_AAR,%2)	\n"
-		"	mov	(_ADR,%2),%0	\n"
-		"	or	%4,%0		\n"
-		"	mov	%0,(_ADR,%2)	\n"
-		"	mov	(_ADR,%2),%0	\n"	/* flush */
-		"	mov	(_ASR,%2),%0	\n"
-		"	or	%0,%0		\n"
-		"	bne	1b		\n"
-		: "=&r"(status), "=m"(*addr)
-		: "a"(ATOMIC_OPS_BASE_ADDR), "r"(addr), "r"(mask)
-		: "memory", "cc");
-#else
-	unsigned long flags;
-
-	flags = arch_local_cli_save();
-	*addr |= mask;
-	arch_local_irq_restore(flags);
-#endif
+	atomic_or(mask, v);
 }
 
 #endif /* __KERNEL__ */