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-rw-r--r--arch/x86/include/asm/atomic_32.h415
1 files changed, 0 insertions, 415 deletions
diff --git a/arch/x86/include/asm/atomic_32.h b/arch/x86/include/asm/atomic_32.h
deleted file mode 100644
index dc5a667ff79..00000000000
--- a/arch/x86/include/asm/atomic_32.h
+++ /dev/null
@@ -1,415 +0,0 @@
-#ifndef _ASM_X86_ATOMIC_32_H
-#define _ASM_X86_ATOMIC_32_H
-
-#include <linux/compiler.h>
-#include <linux/types.h>
-#include <asm/processor.h>
-#include <asm/cmpxchg.h>
-
-/*
- * Atomic operations that C can't guarantee us. Useful for
- * resource counting etc..
- */
-
-#define ATOMIC_INIT(i) { (i) }
-
-/**
- * atomic_read - read atomic variable
- * @v: pointer of type atomic_t
- *
- * Atomically reads the value of @v.
- */
-static inline int atomic_read(const atomic_t *v)
-{
- return v->counter;
-}
-
-/**
- * atomic_set - set atomic variable
- * @v: pointer of type atomic_t
- * @i: required value
- *
- * Atomically sets the value of @v to @i.
- */
-static inline void atomic_set(atomic_t *v, int i)
-{
- v->counter = i;
-}
-
-/**
- * atomic_add - add integer to atomic variable
- * @i: integer value to add
- * @v: pointer of type atomic_t
- *
- * Atomically adds @i to @v.
- */
-static inline void atomic_add(int i, atomic_t *v)
-{
- asm volatile(LOCK_PREFIX "addl %1,%0"
- : "+m" (v->counter)
- : "ir" (i));
-}
-
-/**
- * atomic_sub - subtract integer from atomic variable
- * @i: integer value to subtract
- * @v: pointer of type atomic_t
- *
- * Atomically subtracts @i from @v.
- */
-static inline void atomic_sub(int i, atomic_t *v)
-{
- asm volatile(LOCK_PREFIX "subl %1,%0"
- : "+m" (v->counter)
- : "ir" (i));
-}
-
-/**
- * atomic_sub_and_test - subtract value from variable and test result
- * @i: integer value to subtract
- * @v: pointer of type atomic_t
- *
- * Atomically subtracts @i from @v and returns
- * true if the result is zero, or false for all
- * other cases.
- */
-static inline int atomic_sub_and_test(int i, atomic_t *v)
-{
- unsigned char c;
-
- asm volatile(LOCK_PREFIX "subl %2,%0; sete %1"
- : "+m" (v->counter), "=qm" (c)
- : "ir" (i) : "memory");
- return c;
-}
-
-/**
- * atomic_inc - increment atomic variable
- * @v: pointer of type atomic_t
- *
- * Atomically increments @v by 1.
- */
-static inline void atomic_inc(atomic_t *v)
-{
- asm volatile(LOCK_PREFIX "incl %0"
- : "+m" (v->counter));
-}
-
-/**
- * atomic_dec - decrement atomic variable
- * @v: pointer of type atomic_t
- *
- * Atomically decrements @v by 1.
- */
-static inline void atomic_dec(atomic_t *v)
-{
- asm volatile(LOCK_PREFIX "decl %0"
- : "+m" (v->counter));
-}
-
-/**
- * atomic_dec_and_test - decrement and test
- * @v: pointer of type atomic_t
- *
- * Atomically decrements @v by 1 and
- * returns true if the result is 0, or false for all other
- * cases.
- */
-static inline int atomic_dec_and_test(atomic_t *v)
-{
- unsigned char c;
-
- asm volatile(LOCK_PREFIX "decl %0; sete %1"
- : "+m" (v->counter), "=qm" (c)
- : : "memory");
- return c != 0;
-}
-
-/**
- * atomic_inc_and_test - increment and test
- * @v: pointer of type atomic_t
- *
- * Atomically increments @v by 1
- * and returns true if the result is zero, or false for all
- * other cases.
- */
-static inline int atomic_inc_and_test(atomic_t *v)
-{
- unsigned char c;
-
- asm volatile(LOCK_PREFIX "incl %0; sete %1"
- : "+m" (v->counter), "=qm" (c)
- : : "memory");
- return c != 0;
-}
-
-/**
- * atomic_add_negative - add and test if negative
- * @v: pointer of type atomic_t
- * @i: integer value to add
- *
- * 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 atomic_add_negative(int i, atomic_t *v)
-{
- unsigned char c;
-
- asm volatile(LOCK_PREFIX "addl %2,%0; sets %1"
- : "+m" (v->counter), "=qm" (c)
- : "ir" (i) : "memory");
- return c;
-}
-
-/**
- * atomic_add_return - add integer and return
- * @v: pointer of type atomic_t
- * @i: integer value to add
- *
- * Atomically adds @i to @v and returns @i + @v
- */
-static inline int atomic_add_return(int i, atomic_t *v)
-{
- int __i;
-#ifdef CONFIG_M386
- unsigned long flags;
- if (unlikely(boot_cpu_data.x86 <= 3))
- goto no_xadd;
-#endif
- /* Modern 486+ processor */
- __i = i;
- asm volatile(LOCK_PREFIX "xaddl %0, %1"
- : "+r" (i), "+m" (v->counter)
- : : "memory");
- return i + __i;
-
-#ifdef CONFIG_M386
-no_xadd: /* Legacy 386 processor */
- local_irq_save(flags);
- __i = atomic_read(v);
- atomic_set(v, i + __i);
- local_irq_restore(flags);
- return i + __i;
-#endif
-}
-
-/**
- * atomic_sub_return - subtract integer and return
- * @v: pointer of type atomic_t
- * @i: integer value to subtract
- *
- * Atomically subtracts @i from @v and returns @v - @i
- */
-static inline int atomic_sub_return(int i, atomic_t *v)
-{
- return atomic_add_return(-i, v);
-}
-
-static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
-{
- return cmpxchg(&v->counter, old, new);
-}
-
-static inline int atomic_xchg(atomic_t *v, int new)
-{
- return xchg(&v->counter, new);
-}
-
-/**
- * atomic_add_unless - add unless the number is already a given value
- * @v: pointer of type atomic_t
- * @a: the amount to add to v...
- * @u: ...unless v is equal to u.
- *
- * Atomically adds @a to @v, so long as @v was not already @u.
- * Returns non-zero if @v was not @u, and zero otherwise.
- */
-static inline int atomic_add_unless(atomic_t *v, int a, int u)
-{
- int c, old;
- c = atomic_read(v);
- for (;;) {
- if (unlikely(c == (u)))
- break;
- old = atomic_cmpxchg((v), c, c + (a));
- if (likely(old == c))
- break;
- c = old;
- }
- return c != (u);
-}
-
-#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
-
-#define atomic_inc_return(v) (atomic_add_return(1, v))
-#define atomic_dec_return(v) (atomic_sub_return(1, v))
-
-/* These are x86-specific, used by some header files */
-#define atomic_clear_mask(mask, addr) \
- asm volatile(LOCK_PREFIX "andl %0,%1" \
- : : "r" (~(mask)), "m" (*(addr)) : "memory")
-
-#define atomic_set_mask(mask, addr) \
- asm volatile(LOCK_PREFIX "orl %0,%1" \
- : : "r" (mask), "m" (*(addr)) : "memory")
-
-/* Atomic operations are already serializing on x86 */
-#define smp_mb__before_atomic_dec() barrier()
-#define smp_mb__after_atomic_dec() barrier()
-#define smp_mb__before_atomic_inc() barrier()
-#define smp_mb__after_atomic_inc() barrier()
-
-/* An 64bit atomic type */
-
-typedef struct {
- u64 __aligned(8) counter;
-} atomic64_t;
-
-#define ATOMIC64_INIT(val) { (val) }
-
-extern u64 atomic64_cmpxchg(atomic64_t *ptr, u64 old_val, u64 new_val);
-
-/**
- * atomic64_xchg - xchg atomic64 variable
- * @ptr: pointer to type atomic64_t
- * @new_val: value to assign
- *
- * Atomically xchgs the value of @ptr to @new_val and returns
- * the old value.
- */
-extern u64 atomic64_xchg(atomic64_t *ptr, u64 new_val);
-
-/**
- * atomic64_set - set atomic64 variable
- * @ptr: pointer to type atomic64_t
- * @new_val: value to assign
- *
- * Atomically sets the value of @ptr to @new_val.
- */
-extern void atomic64_set(atomic64_t *ptr, u64 new_val);
-
-/**
- * atomic64_read - read atomic64 variable
- * @ptr: pointer to type atomic64_t
- *
- * Atomically reads the value of @ptr and returns it.
- */
-static inline u64 atomic64_read(atomic64_t *ptr)
-{
- u64 res;
-
- /*
- * Note, we inline this atomic64_t primitive because
- * it only clobbers EAX/EDX and leaves the others
- * untouched. We also (somewhat subtly) rely on the
- * fact that cmpxchg8b returns the current 64-bit value
- * of the memory location we are touching:
- */
- asm volatile(
- "mov %%ebx, %%eax\n\t"
- "mov %%ecx, %%edx\n\t"
- LOCK_PREFIX "cmpxchg8b %1\n"
- : "=&A" (res)
- : "m" (*ptr)
- );
-
- return res;
-}
-
-extern u64 atomic64_read(atomic64_t *ptr);
-
-/**
- * atomic64_add_return - add and return
- * @delta: integer value to add
- * @ptr: pointer to type atomic64_t
- *
- * Atomically adds @delta to @ptr and returns @delta + *@ptr
- */
-extern u64 atomic64_add_return(u64 delta, atomic64_t *ptr);
-
-/*
- * Other variants with different arithmetic operators:
- */
-extern u64 atomic64_sub_return(u64 delta, atomic64_t *ptr);
-extern u64 atomic64_inc_return(atomic64_t *ptr);
-extern u64 atomic64_dec_return(atomic64_t *ptr);
-
-/**
- * atomic64_add - add integer to atomic64 variable
- * @delta: integer value to add
- * @ptr: pointer to type atomic64_t
- *
- * Atomically adds @delta to @ptr.
- */
-extern void atomic64_add(u64 delta, atomic64_t *ptr);
-
-/**
- * atomic64_sub - subtract the atomic64 variable
- * @delta: integer value to subtract
- * @ptr: pointer to type atomic64_t
- *
- * Atomically subtracts @delta from @ptr.
- */
-extern void atomic64_sub(u64 delta, atomic64_t *ptr);
-
-/**
- * atomic64_sub_and_test - subtract value from variable and test result
- * @delta: integer value to subtract
- * @ptr: pointer to type atomic64_t
- *
- * Atomically subtracts @delta from @ptr and returns
- * true if the result is zero, or false for all
- * other cases.
- */
-extern int atomic64_sub_and_test(u64 delta, atomic64_t *ptr);
-
-/**
- * atomic64_inc - increment atomic64 variable
- * @ptr: pointer to type atomic64_t
- *
- * Atomically increments @ptr by 1.
- */
-extern void atomic64_inc(atomic64_t *ptr);
-
-/**
- * atomic64_dec - decrement atomic64 variable
- * @ptr: pointer to type atomic64_t
- *
- * Atomically decrements @ptr by 1.
- */
-extern void atomic64_dec(atomic64_t *ptr);
-
-/**
- * atomic64_dec_and_test - decrement and test
- * @ptr: pointer to type atomic64_t
- *
- * Atomically decrements @ptr by 1 and
- * returns true if the result is 0, or false for all other
- * cases.
- */
-extern int atomic64_dec_and_test(atomic64_t *ptr);
-
-/**
- * atomic64_inc_and_test - increment and test
- * @ptr: pointer to type atomic64_t
- *
- * Atomically increments @ptr by 1
- * and returns true if the result is zero, or false for all
- * other cases.
- */
-extern int atomic64_inc_and_test(atomic64_t *ptr);
-
-/**
- * atomic64_add_negative - add and test if negative
- * @delta: integer value to add
- * @ptr: pointer to type atomic64_t
- *
- * Atomically adds @delta to @ptr and returns true
- * if the result is negative, or false when
- * result is greater than or equal to zero.
- */
-extern int atomic64_add_negative(u64 delta, atomic64_t *ptr);
-
-#include <asm-generic/atomic-long.h>
-#endif /* _ASM_X86_ATOMIC_32_H */
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