diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/x86/include/asm/atomic64_32.h')
-rw-r--r-- | ANDROID_3.4.5/arch/x86/include/asm/atomic64_32.h | 316 |
1 files changed, 0 insertions, 316 deletions
diff --git a/ANDROID_3.4.5/arch/x86/include/asm/atomic64_32.h b/ANDROID_3.4.5/arch/x86/include/asm/atomic64_32.h deleted file mode 100644 index 19811991..00000000 --- a/ANDROID_3.4.5/arch/x86/include/asm/atomic64_32.h +++ /dev/null @@ -1,316 +0,0 @@ -#ifndef _ASM_X86_ATOMIC64_32_H -#define _ASM_X86_ATOMIC64_32_H - -#include <linux/compiler.h> -#include <linux/types.h> -#include <asm/processor.h> -//#include <asm/cmpxchg.h> - -/* An 64bit atomic type */ - -typedef struct { - u64 __aligned(8) counter; -} atomic64_t; - -#define ATOMIC64_INIT(val) { (val) } - -#define __ATOMIC64_DECL(sym) void atomic64_##sym(atomic64_t *, ...) -#ifndef ATOMIC64_EXPORT -#define ATOMIC64_DECL_ONE __ATOMIC64_DECL -#else -#define ATOMIC64_DECL_ONE(sym) __ATOMIC64_DECL(sym); \ - ATOMIC64_EXPORT(atomic64_##sym) -#endif - -#ifdef CONFIG_X86_CMPXCHG64 -#define __alternative_atomic64(f, g, out, in...) \ - asm volatile("call %P[func]" \ - : out : [func] "i" (atomic64_##g##_cx8), ## in) - -#define ATOMIC64_DECL(sym) ATOMIC64_DECL_ONE(sym##_cx8) -#else -#define __alternative_atomic64(f, g, out, in...) \ - alternative_call(atomic64_##f##_386, atomic64_##g##_cx8, \ - X86_FEATURE_CX8, ASM_OUTPUT2(out), ## in) - -#define ATOMIC64_DECL(sym) ATOMIC64_DECL_ONE(sym##_cx8); \ - ATOMIC64_DECL_ONE(sym##_386) - -ATOMIC64_DECL_ONE(add_386); -ATOMIC64_DECL_ONE(sub_386); -ATOMIC64_DECL_ONE(inc_386); -ATOMIC64_DECL_ONE(dec_386); -#endif - -#define alternative_atomic64(f, out, in...) \ - __alternative_atomic64(f, f, ASM_OUTPUT2(out), ## in) - -ATOMIC64_DECL(read); -ATOMIC64_DECL(set); -ATOMIC64_DECL(xchg); -ATOMIC64_DECL(add_return); -ATOMIC64_DECL(sub_return); -ATOMIC64_DECL(inc_return); -ATOMIC64_DECL(dec_return); -ATOMIC64_DECL(dec_if_positive); -ATOMIC64_DECL(inc_not_zero); -ATOMIC64_DECL(add_unless); - -#undef ATOMIC64_DECL -#undef ATOMIC64_DECL_ONE -#undef __ATOMIC64_DECL -#undef ATOMIC64_EXPORT - -/** - * atomic64_cmpxchg - cmpxchg atomic64 variable - * @p: pointer to type atomic64_t - * @o: expected value - * @n: new value - * - * Atomically sets @v to @n if it was equal to @o and returns - * the old value. - */ - -static inline long long atomic64_cmpxchg(atomic64_t *v, long long o, long long n) -{ - return cmpxchg64(&v->counter, o, n); -} - -/** - * atomic64_xchg - xchg atomic64 variable - * @v: pointer to type atomic64_t - * @n: value to assign - * - * Atomically xchgs the value of @v to @n and returns - * the old value. - */ -static inline long long atomic64_xchg(atomic64_t *v, long long n) -{ - long long o; - unsigned high = (unsigned)(n >> 32); - unsigned low = (unsigned)n; - alternative_atomic64(xchg, "=&A" (o), - "S" (v), "b" (low), "c" (high) - : "memory"); - return o; -} - -/** - * atomic64_set - set atomic64 variable - * @v: pointer to type atomic64_t - * @n: value to assign - * - * Atomically sets the value of @v to @n. - */ -static inline void atomic64_set(atomic64_t *v, long long i) -{ - unsigned high = (unsigned)(i >> 32); - unsigned low = (unsigned)i; - alternative_atomic64(set, /* no output */, - "S" (v), "b" (low), "c" (high) - : "eax", "edx", "memory"); -} - -/** - * atomic64_read - read atomic64 variable - * @v: pointer to type atomic64_t - * - * Atomically reads the value of @v and returns it. - */ -static inline long long atomic64_read(const atomic64_t *v) -{ - long long r; - alternative_atomic64(read, "=&A" (r), "c" (v) : "memory"); - return r; - } - -/** - * atomic64_add_return - add and return - * @i: integer value to add - * @v: pointer to type atomic64_t - * - * Atomically adds @i to @v and returns @i + *@v - */ -static inline long long atomic64_add_return(long long i, atomic64_t *v) -{ - alternative_atomic64(add_return, - ASM_OUTPUT2("+A" (i), "+c" (v)), - ASM_NO_INPUT_CLOBBER("memory")); - return i; -} - -/* - * Other variants with different arithmetic operators: - */ -static inline long long atomic64_sub_return(long long i, atomic64_t *v) -{ - alternative_atomic64(sub_return, - ASM_OUTPUT2("+A" (i), "+c" (v)), - ASM_NO_INPUT_CLOBBER("memory")); - return i; -} - -static inline long long atomic64_inc_return(atomic64_t *v) -{ - long long a; - alternative_atomic64(inc_return, "=&A" (a), - "S" (v) : "memory", "ecx"); - return a; -} - -static inline long long atomic64_dec_return(atomic64_t *v) -{ - long long a; - alternative_atomic64(dec_return, "=&A" (a), - "S" (v) : "memory", "ecx"); - return a; -} - -/** - * atomic64_add - add integer to atomic64 variable - * @i: integer value to add - * @v: pointer to type atomic64_t - * - * Atomically adds @i to @v. - */ -static inline long long atomic64_add(long long i, atomic64_t *v) -{ - __alternative_atomic64(add, add_return, - ASM_OUTPUT2("+A" (i), "+c" (v)), - ASM_NO_INPUT_CLOBBER("memory")); - return i; -} - -/** - * atomic64_sub - subtract the atomic64 variable - * @i: integer value to subtract - * @v: pointer to type atomic64_t - * - * Atomically subtracts @i from @v. - */ -static inline long long atomic64_sub(long long i, atomic64_t *v) -{ - __alternative_atomic64(sub, sub_return, - ASM_OUTPUT2("+A" (i), "+c" (v)), - ASM_NO_INPUT_CLOBBER("memory")); - return i; -} - -/** - * atomic64_sub_and_test - subtract value from variable and test result - * @i: integer value to subtract - * @v: pointer to type atomic64_t - * - * Atomically subtracts @i from @v and returns - * true if the result is zero, or false for all - * other cases. - */ -static inline int atomic64_sub_and_test(long long i, atomic64_t *v) -{ - return atomic64_sub_return(i, v) == 0; -} - -/** - * atomic64_inc - increment atomic64 variable - * @v: pointer to type atomic64_t - * - * Atomically increments @v by 1. - */ -static inline void atomic64_inc(atomic64_t *v) -{ - __alternative_atomic64(inc, inc_return, /* no output */, - "S" (v) : "memory", "eax", "ecx", "edx"); -} - -/** - * atomic64_dec - decrement atomic64 variable - * @ptr: pointer to type atomic64_t - * - * Atomically decrements @ptr by 1. - */ -static inline void atomic64_dec(atomic64_t *v) -{ - __alternative_atomic64(dec, dec_return, /* no output */, - "S" (v) : "memory", "eax", "ecx", "edx"); -} - -/** - * atomic64_dec_and_test - decrement and test - * @v: pointer to type atomic64_t - * - * Atomically decrements @v by 1 and - * returns true if the result is 0, or false for all other - * cases. - */ -static inline int atomic64_dec_and_test(atomic64_t *v) -{ - return atomic64_dec_return(v) == 0; -} - -/** - * atomic64_inc_and_test - increment and test - * @v: pointer to type atomic64_t - * - * Atomically increments @v by 1 - * and returns true if the result is zero, or false for all - * other cases. - */ -static inline int atomic64_inc_and_test(atomic64_t *v) -{ - return atomic64_inc_return(v) == 0; -} - -/** - * atomic64_add_negative - add and test if negative - * @i: integer value to add - * @v: pointer to type atomic64_t - * - * Atomically adds @i to @v and returns true - * if the result is negative, or false when - * result is greater than or equal to zero. - */ -static inline int atomic64_add_negative(long long i, atomic64_t *v) -{ - return atomic64_add_return(i, v) < 0; -} - -/** - * atomic64_add_unless - add unless the number is a given value - * @v: pointer of type atomic64_t - * @a: the amount to add to v... - * @u: ...unless v is equal to u. - * - * Atomically adds @a to @v, so long as it was not @u. - * Returns non-zero if the add was done, zero otherwise. - */ -static inline int atomic64_add_unless(atomic64_t *v, long long a, long long u) -{ - unsigned low = (unsigned)u; - unsigned high = (unsigned)(u >> 32); - alternative_atomic64(add_unless, - ASM_OUTPUT2("+A" (a), "+c" (low), "+D" (high)), - "S" (v) : "memory"); - return (int)a; -} - - -static inline int atomic64_inc_not_zero(atomic64_t *v) -{ - int r; - alternative_atomic64(inc_not_zero, "=&a" (r), - "S" (v) : "ecx", "edx", "memory"); - return r; -} - -static inline long long atomic64_dec_if_positive(atomic64_t *v) -{ - long long r; - alternative_atomic64(dec_if_positive, "=&A" (r), - "S" (v) : "ecx", "memory"); - return r; -} - -#undef alternative_atomic64 -#undef __alternative_atomic64 - -#endif /* _ASM_X86_ATOMIC64_32_H */ |