1 files changed, 0 insertions, 334 deletions
diff --git a/arch/tile/include/asm/atomic_32.h b/arch/tile/include/asm/atomic_32.h
deleted file mode 100644
index e7fb5cfb9597..000000000000
--- a/arch/tile/include/asm/atomic_32.h
+++ /dev/null
@@ -1,334 +0,0 @@
-/*
- * Copyright 2010 Tilera Corporation. All Rights Reserved.
- *
- *   This program is free software; you can redistribute it and/or
- *   modify it under the terms of the GNU General Public License
- *   as published by the Free Software Foundation, version 2.
- *
- *   This program is distributed in the hope that it will be useful, but
- *   WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- *   NON INFRINGEMENT.  See the GNU General Public License for
- *   more details.
- *
- * Do not include directly; use <linux/atomic.h>.
- */
-
-#ifndef _ASM_TILE_ATOMIC_32_H
-#define _ASM_TILE_ATOMIC_32_H
-
-#include <asm/barrier.h>
-#include <arch/chip.h>
-
-#ifndef __ASSEMBLY__
-
-/* Tile-specific routines to support <linux/atomic.h>. */
-int _atomic_xchg(atomic_t *v, int n);
-int _atomic_xchg_add(atomic_t *v, int i);
-int _atomic_xchg_add_unless(atomic_t *v, int a, int u);
-int _atomic_cmpxchg(atomic_t *v, int o, int n);
-
-/**
- * atomic_xchg - atomically exchange contents of memory with a new value
- * @v: pointer of type atomic_t
- * @i: integer value to store in memory
- *
- * Atomically sets @v to @i and returns old @v
- */
-static inline int atomic_xchg(atomic_t *v, int n)
-{
-	smp_mb();  /* barrier for proper semantics */
-	return _atomic_xchg(v, n);
-}
-
-/**
- * atomic_cmpxchg - atomically exchange contents of memory if it matches
- * @v: pointer of type atomic_t
- * @o: old value that memory should have
- * @n: new value to write to memory if it matches
- *
- * Atomically checks if @v holds @o and replaces it with @n if so.
- * Returns the old value at @v.
- */
-static inline int atomic_cmpxchg(atomic_t *v, int o, int n)
-{
-	smp_mb();  /* barrier for proper semantics */
-	return _atomic_cmpxchg(v, o, n);
-}
-
-/**
- * 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)
-{
-	_atomic_xchg_add(v, i);
-}
-
-/**
- * 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)
-{
-	smp_mb();  /* barrier for proper semantics */
-	return _atomic_xchg_add(v, i) + i;
-}
-
-/**
- * __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 the old value of @v.
- */
-static inline int __atomic_add_unless(atomic_t *v, int a, int u)
-{
-	smp_mb();  /* barrier for proper semantics */
-	return _atomic_xchg_add_unless(v, a, u);
-}
-
-/**
- * atomic_set - set atomic variable
- * @v: pointer of type atomic_t
- * @i: required value
- *
- * Atomically sets the value of @v to @i.
- *
- * atomic_set() can't be just a raw store, since it would be lost if it
- * fell between the load and store of one of the other atomic ops.
- */
-static inline void atomic_set(atomic_t *v, int n)
-{
-	_atomic_xchg(v, n);
-}
-
-/* A 64bit atomic type */
-
-typedef struct {
-	u64 __aligned(8) counter;
-} atomic64_t;
-
-#define ATOMIC64_INIT(val) { (val) }
-
-u64 _atomic64_xchg(atomic64_t *v, u64 n);
-u64 _atomic64_xchg_add(atomic64_t *v, u64 i);
-u64 _atomic64_xchg_add_unless(atomic64_t *v, u64 a, u64 u);
-u64 _atomic64_cmpxchg(atomic64_t *v, u64 o, u64 n);
-
-/**
- * atomic64_read - read atomic variable
- * @v: pointer of type atomic64_t
- *
- * Atomically reads the value of @v.
- */
-static inline u64 atomic64_read(const atomic64_t *v)
-{
-	/*
-	 * Requires an atomic op to read both 32-bit parts consistently.
-	 * Casting away const is safe since the atomic support routines
-	 * do not write to memory if the value has not been modified.
-	 */
-	return _atomic64_xchg_add((atomic64_t *)v, 0);
-}
-
-/**
- * atomic64_xchg - atomically exchange contents of memory with a new value
- * @v: pointer of type atomic64_t
- * @i: integer value to store in memory
- *
- * Atomically sets @v to @i and returns old @v
- */
-static inline u64 atomic64_xchg(atomic64_t *v, u64 n)
-{
-	smp_mb();  /* barrier for proper semantics */
-	return _atomic64_xchg(v, n);
-}
-
-/**
- * atomic64_cmpxchg - atomically exchange contents of memory if it matches
- * @v: pointer of type atomic64_t
- * @o: old value that memory should have
- * @n: new value to write to memory if it matches
- *
- * Atomically checks if @v holds @o and replaces it with @n if so.
- * Returns the old value at @v.
- */
-static inline u64 atomic64_cmpxchg(atomic64_t *v, u64 o, u64 n)
-{
-	smp_mb();  /* barrier for proper semantics */
-	return _atomic64_cmpxchg(v, o, n);
-}
-
-/**
- * atomic64_add - add integer to atomic variable
- * @i: integer value to add
- * @v: pointer of type atomic64_t
- *
- * Atomically adds @i to @v.
- */
-static inline void atomic64_add(u64 i, atomic64_t *v)
-{
-	_atomic64_xchg_add(v, i);
-}
-
-/**
- * atomic64_add_return - add integer and return
- * @v: pointer of type atomic64_t
- * @i: integer value to add
- *
- * Atomically adds @i to @v and returns @i + @v
- */
-static inline u64 atomic64_add_return(u64 i, atomic64_t *v)
-{
-	smp_mb();  /* barrier for proper semantics */
-	return _atomic64_xchg_add(v, i) + i;
-}
-
-/**
- * atomic64_add_unless - add unless the number is already 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 @v was not already @u.
- * Returns non-zero if @v was not @u, and zero otherwise.
- */
-static inline u64 atomic64_add_unless(atomic64_t *v, u64 a, u64 u)
-{
-	smp_mb();  /* barrier for proper semantics */
-	return _atomic64_xchg_add_unless(v, a, u) != u;
-}
-
-/**
- * atomic64_set - set atomic variable
- * @v: pointer of type atomic64_t
- * @i: required value
- *
- * Atomically sets the value of @v to @i.
- *
- * atomic64_set() can't be just a raw store, since it would be lost if it
- * fell between the load and store of one of the other atomic ops.
- */
-static inline void atomic64_set(atomic64_t *v, u64 n)
-{
-	_atomic64_xchg(v, n);
-}
-
-#define atomic64_add_negative(a, v)	(atomic64_add_return((a), (v)) < 0)
-#define atomic64_inc(v)			atomic64_add(1LL, (v))
-#define atomic64_inc_return(v)		atomic64_add_return(1LL, (v))
-#define atomic64_inc_and_test(v)	(atomic64_inc_return(v) == 0)
-#define atomic64_sub_return(i, v)	atomic64_add_return(-(i), (v))
-#define atomic64_sub_and_test(a, v)	(atomic64_sub_return((a), (v)) == 0)
-#define atomic64_sub(i, v)		atomic64_add(-(i), (v))
-#define atomic64_dec(v)			atomic64_sub(1LL, (v))
-#define atomic64_dec_return(v)		atomic64_sub_return(1LL, (v))
-#define atomic64_dec_and_test(v)	(atomic64_dec_return((v)) == 0)
-#define atomic64_inc_not_zero(v)	atomic64_add_unless((v), 1LL, 0LL)
-
-/*
- * We need to barrier before modifying the word, since the _atomic_xxx()
- * routines just tns the lock and then read/modify/write of the word.
- * But after the word is updated, the routine issues an "mf" before returning,
- * and since it's a function call, we don't even need a compiler barrier.
- */
-#define smp_mb__before_atomic_dec()	smp_mb()
-#define smp_mb__before_atomic_inc()	smp_mb()
-#define smp_mb__after_atomic_dec()	do { } while (0)
-#define smp_mb__after_atomic_inc()	do { } while (0)
-
-#endif /* !__ASSEMBLY__ */
-
-/*
- * Internal definitions only beyond this point.
- */
-
-#define ATOMIC_LOCKS_FOUND_VIA_TABLE() \
-  (!CHIP_HAS_CBOX_HOME_MAP() && defined(CONFIG_SMP))
-
-#if ATOMIC_LOCKS_FOUND_VIA_TABLE()
-
-/* Number of entries in atomic_lock_ptr[]. */
-#define ATOMIC_HASH_L1_SHIFT 6
-#define ATOMIC_HASH_L1_SIZE (1 << ATOMIC_HASH_L1_SHIFT)
-
-/* Number of locks in each struct pointed to by atomic_lock_ptr[]. */
-#define ATOMIC_HASH_L2_SHIFT (CHIP_L2_LOG_LINE_SIZE() - 2)
-#define ATOMIC_HASH_L2_SIZE (1 << ATOMIC_HASH_L2_SHIFT)
-
-#else /* ATOMIC_LOCKS_FOUND_VIA_TABLE() */
-
-/*
- * Number of atomic locks in atomic_locks[]. Must be a power of two.
- * There is no reason for more than PAGE_SIZE / 8 entries, since that
- * is the maximum number of pointer bits we can use to index this.
- * And we cannot have more than PAGE_SIZE / 4, since this has to
- * fit on a single page and each entry takes 4 bytes.
- */
-#define ATOMIC_HASH_SHIFT (PAGE_SHIFT - 3)
-#define ATOMIC_HASH_SIZE (1 << ATOMIC_HASH_SHIFT)
-
-#ifndef __ASSEMBLY__
-extern int atomic_locks[];
-#endif
-
-#endif /* ATOMIC_LOCKS_FOUND_VIA_TABLE() */
-
-/*
- * All the code that may fault while holding an atomic lock must
- * place the pointer to the lock in ATOMIC_LOCK_REG so the fault code
- * can correctly release and reacquire the lock.  Note that we
- * mention the register number in a comment in "lib/atomic_asm.S" to help
- * assembly coders from using this register by mistake, so if it
- * is changed here, change that comment as well.
- */
-#define ATOMIC_LOCK_REG 20
-#define ATOMIC_LOCK_REG_NAME r20
-
-#ifndef __ASSEMBLY__
-/* Called from setup to initialize a hash table to point to per_cpu locks. */
-void __init_atomic_per_cpu(void);
-
-#ifdef CONFIG_SMP
-/* Support releasing the atomic lock in do_page_fault_ics(). */
-void __atomic_fault_unlock(int *lock_ptr);
-#endif
-
-/* Return a pointer to the lock for the given address. */
-int *__atomic_hashed_lock(volatile void *v);
-
-/* Private helper routines in lib/atomic_asm_32.S */
-struct __get_user {
-	unsigned long val;
-	int err;
-};
-extern struct __get_user __atomic_cmpxchg(volatile int *p,
-					  int *lock, int o, int n);
-extern struct __get_user __atomic_xchg(volatile int *p, int *lock, int n);
-extern struct __get_user __atomic_xchg_add(volatile int *p, int *lock, int n);
-extern struct __get_user __atomic_xchg_add_unless(volatile int *p,
-						  int *lock, int o, int n);
-extern struct __get_user __atomic_or(volatile int *p, int *lock, int n);
-extern struct __get_user __atomic_andn(volatile int *p, int *lock, int n);
-extern struct __get_user __atomic_xor(volatile int *p, int *lock, int n);
-extern u64 __atomic64_cmpxchg(volatile u64 *p, int *lock, u64 o, u64 n);
-extern u64 __atomic64_xchg(volatile u64 *p, int *lock, u64 n);
-extern u64 __atomic64_xchg_add(volatile u64 *p, int *lock, u64 n);
-extern u64 __atomic64_xchg_add_unless(volatile u64 *p,
-				      int *lock, u64 o, u64 n);
-
-/* Return failure from the atomic wrappers. */
-struct __get_user __atomic_bad_address(int __user *addr);
-
-#endif /* !__ASSEMBLY__ */
-
-#endif /* _ASM_TILE_ATOMIC_32_H */