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author | Linus Walleij <linus.walleij@linaro.org> | 2017-01-30 14:39:20 +0100 |
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committer | Linus Walleij <linus.walleij@linaro.org> | 2017-01-30 14:39:20 +0100 |
commit | 7f36f5d11cda050b118f76d774151427a18d15ef (patch) | |
tree | 9d4fa3b830785b767525a5e6a065fe4297cd8112 /arch/frv | |
parent | pinctrl: samsung: Replace syscore ops with standard platform device pm_ops (diff) | |
parent | Linux 4.10-rc6 (diff) | |
download | linux-7f36f5d11cda050b118f76d774151427a18d15ef.tar.xz linux-7f36f5d11cda050b118f76d774151427a18d15ef.zip |
Merge tag 'v4.10-rc6' into devel
Linux 4.10-rc6
Resolved conflicts in:
drivers/pinctrl/pinctrl-amd.c
drivers/pinctrl/samsung/pinctrl-exynos.c
Diffstat (limited to 'arch/frv')
-rw-r--r-- | arch/frv/include/asm/atomic.h | 35 |
1 files changed, 34 insertions, 1 deletions
diff --git a/arch/frv/include/asm/atomic.h b/arch/frv/include/asm/atomic.h index 1c2a5e264fc7..e93c9494503a 100644 --- a/arch/frv/include/asm/atomic.h +++ b/arch/frv/include/asm/atomic.h @@ -139,7 +139,7 @@ static inline void atomic64_dec(atomic64_t *v) #define atomic64_sub_and_test(i,v) (atomic64_sub_return((i), (v)) == 0) #define atomic64_dec_and_test(v) (atomic64_dec_return((v)) == 0) #define atomic64_inc_and_test(v) (atomic64_inc_return((v)) == 0) - +#define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0) #define atomic_cmpxchg(v, old, new) (cmpxchg(&(v)->counter, old, new)) #define atomic_xchg(v, new) (xchg(&(v)->counter, new)) @@ -161,6 +161,39 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u) return c; } +static inline int atomic64_add_unless(atomic64_t *v, long long i, long long u) +{ + long long c, old; + + c = atomic64_read(v); + for (;;) { + if (unlikely(c == u)) + break; + old = atomic64_cmpxchg(v, c, c + i); + if (likely(old == c)) + break; + c = old; + } + return c != u; +} + +static inline long long atomic64_dec_if_positive(atomic64_t *v) +{ + long long c, old, dec; + + c = atomic64_read(v); + for (;;) { + dec = c - 1; + if (unlikely(dec < 0)) + break; + old = atomic64_cmpxchg((v), c, dec); + if (likely(old == c)) + break; + c = old; + } + return dec; +} + #define ATOMIC_OP(op) \ static inline int atomic_fetch_##op(int i, atomic_t *v) \ { \ |