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-rw-r--r--arch/tile/lib/atomic_32.c53
1 files changed, 18 insertions, 35 deletions
diff --git a/arch/tile/lib/atomic_32.c b/arch/tile/lib/atomic_32.c
index be1e8acd105d..8040b42a8eea 100644
--- a/arch/tile/lib/atomic_32.c
+++ b/arch/tile/lib/atomic_32.c
@@ -18,27 +18,10 @@
18#include <linux/module.h> 18#include <linux/module.h>
19#include <linux/mm.h> 19#include <linux/mm.h>
20#include <asm/atomic.h> 20#include <asm/atomic.h>
21#include <asm/futex.h>
21#include <arch/chip.h> 22#include <arch/chip.h>
22 23
23/* The routines in atomic_asm.S are private, so we only declare them here. */ 24/* See <asm/atomic_32.h> */
24extern struct __get_user __atomic_cmpxchg(volatile int *p,
25 int *lock, int o, int n);
26extern struct __get_user __atomic_xchg(volatile int *p, int *lock, int n);
27extern struct __get_user __atomic_xchg_add(volatile int *p, int *lock, int n);
28extern struct __get_user __atomic_xchg_add_unless(volatile int *p,
29 int *lock, int o, int n);
30extern struct __get_user __atomic_or(volatile int *p, int *lock, int n);
31extern struct __get_user __atomic_andn(volatile int *p, int *lock, int n);
32extern struct __get_user __atomic_xor(volatile int *p, int *lock, int n);
33
34extern u64 __atomic64_cmpxchg(volatile u64 *p, int *lock, u64 o, u64 n);
35extern u64 __atomic64_xchg(volatile u64 *p, int *lock, u64 n);
36extern u64 __atomic64_xchg_add(volatile u64 *p, int *lock, u64 n);
37extern u64 __atomic64_xchg_add_unless(volatile u64 *p,
38 int *lock, u64 o, u64 n);
39
40
41/* See <asm/atomic.h> */
42#if ATOMIC_LOCKS_FOUND_VIA_TABLE() 25#if ATOMIC_LOCKS_FOUND_VIA_TABLE()
43 26
44/* 27/*
@@ -209,7 +192,7 @@ u64 _atomic64_cmpxchg(atomic64_t *v, u64 o, u64 n)
209EXPORT_SYMBOL(_atomic64_cmpxchg); 192EXPORT_SYMBOL(_atomic64_cmpxchg);
210 193
211 194
212static inline int *__futex_setup(__user int *v) 195static inline int *__futex_setup(int __user *v)
213{ 196{
214 /* 197 /*
215 * Issue a prefetch to the counter to bring it into cache. 198 * Issue a prefetch to the counter to bring it into cache.
@@ -217,37 +200,37 @@ static inline int *__futex_setup(__user int *v)
217 * since it might fault; instead we do a prefetch into the L2. 200 * since it might fault; instead we do a prefetch into the L2.
218 */ 201 */
219 __insn_prefetch(v); 202 __insn_prefetch(v);
220 return __atomic_hashed_lock(v); 203 return __atomic_hashed_lock((int __force *)v);
221} 204}
222 205
223struct __get_user futex_set(int *v, int i) 206struct __get_user futex_set(int __user *v, int i)
224{ 207{
225 return __atomic_xchg(v, __futex_setup(v), i); 208 return __atomic_xchg((int __force *)v, __futex_setup(v), i);
226} 209}
227 210
228struct __get_user futex_add(int *v, int n) 211struct __get_user futex_add(int __user *v, int n)
229{ 212{
230 return __atomic_xchg_add(v, __futex_setup(v), n); 213 return __atomic_xchg_add((int __force *)v, __futex_setup(v), n);
231} 214}
232 215
233struct __get_user futex_or(int *v, int n) 216struct __get_user futex_or(int __user *v, int n)
234{ 217{
235 return __atomic_or(v, __futex_setup(v), n); 218 return __atomic_or((int __force *)v, __futex_setup(v), n);
236} 219}
237 220
238struct __get_user futex_andn(int *v, int n) 221struct __get_user futex_andn(int __user *v, int n)
239{ 222{
240 return __atomic_andn(v, __futex_setup(v), n); 223 return __atomic_andn((int __force *)v, __futex_setup(v), n);
241} 224}
242 225
243struct __get_user futex_xor(int *v, int n) 226struct __get_user futex_xor(int __user *v, int n)
244{ 227{
245 return __atomic_xor(v, __futex_setup(v), n); 228 return __atomic_xor((int __force *)v, __futex_setup(v), n);
246} 229}
247 230
248struct __get_user futex_cmpxchg(int *v, int o, int n) 231struct __get_user futex_cmpxchg(int __user *v, int o, int n)
249{ 232{
250 return __atomic_cmpxchg(v, __futex_setup(v), o, n); 233 return __atomic_cmpxchg((int __force *)v, __futex_setup(v), o, n);
251} 234}
252 235
253/* 236/*
@@ -260,7 +243,7 @@ struct __get_user futex_cmpxchg(int *v, int o, int n)
260 * invoked in is the context of the "_atomic_xxx()" routines called 243 * invoked in is the context of the "_atomic_xxx()" routines called
261 * by the functions in this file. 244 * by the functions in this file.
262 */ 245 */
263struct __get_user __atomic_bad_address(int *addr) 246struct __get_user __atomic_bad_address(int __user *addr)
264{ 247{
265 if (unlikely(!access_ok(VERIFY_WRITE, addr, sizeof(int)))) 248 if (unlikely(!access_ok(VERIFY_WRITE, addr, sizeof(int))))
266 panic("Bad address used for kernel atomic op: %p\n", addr); 249 panic("Bad address used for kernel atomic op: %p\n", addr);
@@ -271,7 +254,7 @@ struct __get_user __atomic_bad_address(int *addr)
271#if CHIP_HAS_CBOX_HOME_MAP() 254#if CHIP_HAS_CBOX_HOME_MAP()
272static int __init noatomichash(char *str) 255static int __init noatomichash(char *str)
273{ 256{
274 printk("noatomichash is deprecated.\n"); 257 pr_warning("noatomichash is deprecated.\n");
275 return 1; 258 return 1;
276} 259}
277__setup("noatomichash", noatomichash); 260__setup("noatomichash", noatomichash);