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authorPeter Zijlstra <peterz@infradead.org>2014-04-23 19:44:20 +0200
committerThomas Gleixner <tglx@linutronix.de>2015-07-27 14:06:23 +0200
commit658aa51459c2f5284183d35b6dd0beca0e0bfe2f (patch)
treef4bb53537ec01ef11855fbfdd3857f4a89b944d9 /arch/sh
parentd0b7eb6ff2985c9350fdb297fa5727c35324d4df (diff)
downloadlinux-658aa51459c2f5284183d35b6dd0beca0e0bfe2f.tar.bz2
sh: 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>
Diffstat (limited to 'arch/sh')
-rw-r--r--arch/sh/include/asm/atomic-grb.h45
-rw-r--r--arch/sh/include/asm/atomic-irq.h21
-rw-r--r--arch/sh/include/asm/atomic-llsc.h31
-rw-r--r--arch/sh/include/asm/atomic.h10
4 files changed, 22 insertions, 85 deletions
diff --git a/arch/sh/include/asm/atomic-grb.h b/arch/sh/include/asm/atomic-grb.h
index 97a5fda83450..4b03830d48c7 100644
--- a/arch/sh/include/asm/atomic-grb.h
+++ b/arch/sh/include/asm/atomic-grb.h
@@ -48,47 +48,14 @@ 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
-static inline void atomic_clear_mask(unsigned int mask, atomic_t *v)
-{
- int tmp;
- unsigned int _mask = ~mask;
-
- __asm__ __volatile__ (
- " .align 2 \n\t"
- " mova 1f, r0 \n\t" /* r0 = end point */
- " mov r15, r1 \n\t" /* r1 = saved sp */
- " mov #-6, r15 \n\t" /* LOGIN: r15 = size */
- " mov.l @%1, %0 \n\t" /* load old value */
- " and %2, %0 \n\t" /* add */
- " mov.l %0, @%1 \n\t" /* store new value */
- "1: mov r1, r15 \n\t" /* LOGOUT */
- : "=&r" (tmp),
- "+r" (v)
- : "r" (_mask)
- : "memory" , "r0", "r1");
-}
-
-static inline void atomic_set_mask(unsigned int mask, atomic_t *v)
-{
- int tmp;
-
- __asm__ __volatile__ (
- " .align 2 \n\t"
- " mova 1f, r0 \n\t" /* r0 = end point */
- " mov r15, r1 \n\t" /* r1 = saved sp */
- " mov #-6, r15 \n\t" /* LOGIN: r15 = size */
- " mov.l @%1, %0 \n\t" /* load old value */
- " or %2, %0 \n\t" /* or */
- " mov.l %0, @%1 \n\t" /* store new value */
- "1: mov r1, r15 \n\t" /* LOGOUT */
- : "=&r" (tmp),
- "+r" (v)
- : "r" (mask)
- : "memory" , "r0", "r1");
-}
-
#endif /* __ASM_SH_ATOMIC_GRB_H */
diff --git a/arch/sh/include/asm/atomic-irq.h b/arch/sh/include/asm/atomic-irq.h
index 61d107523f06..23fcdad5773e 100644
--- a/arch/sh/include/asm/atomic-irq.h
+++ b/arch/sh/include/asm/atomic-irq.h
@@ -37,27 +37,12 @@ static inline int atomic_##op##_return(int i, atomic_t *v) \
ATOMIC_OPS(add, +=)
ATOMIC_OPS(sub, -=)
+ATOMIC_OP(and, &=)
+ATOMIC_OP(or, |=)
+ATOMIC_OP(xor, ^=)
#undef ATOMIC_OPS
#undef ATOMIC_OP_RETURN
#undef ATOMIC_OP
-static inline void atomic_clear_mask(unsigned int mask, atomic_t *v)
-{
- unsigned long flags;
-
- raw_local_irq_save(flags);
- v->counter &= ~mask;
- raw_local_irq_restore(flags);
-}
-
-static inline void atomic_set_mask(unsigned int mask, atomic_t *v)
-{
- unsigned long flags;
-
- raw_local_irq_save(flags);
- v->counter |= mask;
- raw_local_irq_restore(flags);
-}
-
#endif /* __ASM_SH_ATOMIC_IRQ_H */
diff --git a/arch/sh/include/asm/atomic-llsc.h b/arch/sh/include/asm/atomic-llsc.h
index 8575dccb9ef7..33d34b16d4d6 100644
--- a/arch/sh/include/asm/atomic-llsc.h
+++ b/arch/sh/include/asm/atomic-llsc.h
@@ -52,37 +52,12 @@ static inline int atomic_##op##_return(int i, atomic_t *v) \
ATOMIC_OPS(add)
ATOMIC_OPS(sub)
+ATOMIC_OP(and)
+ATOMIC_OP(or)
+ATOMIC_OP(xor)
#undef ATOMIC_OPS
#undef ATOMIC_OP_RETURN
#undef ATOMIC_OP
-static inline void atomic_clear_mask(unsigned int mask, atomic_t *v)
-{
- unsigned long tmp;
-
- __asm__ __volatile__ (
-"1: movli.l @%2, %0 ! atomic_clear_mask \n"
-" and %1, %0 \n"
-" movco.l %0, @%2 \n"
-" bf 1b \n"
- : "=&z" (tmp)
- : "r" (~mask), "r" (&v->counter)
- : "t");
-}
-
-static inline void atomic_set_mask(unsigned int mask, atomic_t *v)
-{
- unsigned long tmp;
-
- __asm__ __volatile__ (
-"1: movli.l @%2, %0 ! atomic_set_mask \n"
-" or %1, %0 \n"
-" movco.l %0, @%2 \n"
-" bf 1b \n"
- : "=&z" (tmp)
- : "r" (mask), "r" (&v->counter)
- : "t");
-}
-
#endif /* __ASM_SH_ATOMIC_LLSC_H */
diff --git a/arch/sh/include/asm/atomic.h b/arch/sh/include/asm/atomic.h
index 05b9f74ce2d5..cee0245257e1 100644
--- a/arch/sh/include/asm/atomic.h
+++ b/arch/sh/include/asm/atomic.h
@@ -25,6 +25,16 @@
#include <asm/atomic-irq.h>
#endif
+static inline __deprecated void atomic_clear_mask(unsigned int mask, atomic_t *v)
+{
+ atomic_and(~mask, v);
+}
+
+static inline __deprecated void atomic_set_mask(unsigned int mask, atomic_t *v)
+{
+ atomic_or(mask, v);
+}
+
#define atomic_add_negative(a, v) (atomic_add_return((a), (v)) < 0)
#define atomic_dec_return(v) atomic_sub_return(1, (v))
#define atomic_inc_return(v) atomic_add_return(1, (v))