/*
* Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
*
- * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. The rights granted to you under the
- * License may not be used to create, or enable the creation or
- * redistribution of, unlawful or unlicensed copies of an Apple operating
- * system, or to circumvent, violate, or enable the circumvention or
- * violation of, any terms of an Apple operating system software license
- * agreement.
- *
- * Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
- *
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ *
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
* limitations under the License.
- *
- * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
* Copyright (C) 1998 Apple Computer
#include <mach_rt.h>
#include <mach_ldebug.h>
-typedef struct {
- lck_mtx_t lck_mtx; /* inlined lck_mtx, need to be first */
-#if MACH_LDEBUG
- int type;
-#define MUTEX_TAG 0x4d4d
- vm_offset_t pc;
- vm_offset_t thread;
-#endif /* MACH_LDEBUG */
-} mutex_t;
-
typedef lck_rw_t lock_t;
-extern unsigned int LockTimeOut; /* Number of hardware ticks of a lock timeout */
+extern unsigned int LockTimeOutTSC; /* Lock timeout in TSC ticks */
+extern unsigned int LockTimeOut; /* Lock timeout in absolute time */
#if defined(__GNUC__)
: \
"r" (bit), "m" (*(volatile int *)(l)));
-static inline unsigned long i_bit_isset(unsigned int test, volatile unsigned long *word)
-{
- int bit;
-
- __asm__ volatile("btl %2,%1\n\tsbbl %0,%0" : "=r" (bit)
- : "m" (word), "ir" (test));
- return bit;
-}
-
static inline char xchgb(volatile char * cp, char new);
static inline void atomic_incl(volatile long * p, long delta);
return (old);
}
-/*
- * Compare and exchange:
- * - returns failure (0) if the location did not contain the old value,
- * - returns success (1) if the location was set to the new value.
- */
-static inline uint32_t
-atomic_cmpxchg(uint32_t *p, uint32_t old, uint32_t new)
-{
- uint32_t res = old;
-
- asm volatile(
- "lock; cmpxchgl %1,%2; \n\t"
- " setz %%al; \n\t"
- " movzbl %%al,%0"
- : "+a" (res) /* %0: old value to compare, returns success */
- : "r" (new), /* %1: new value to set */
- "m" (*(p)) /* %2: memory address */
- : "memory");
- return (res);
-}
-
static inline void atomic_incl(volatile long * p, long delta)
{
__asm__ volatile (" lock \n \
- addl %0,%1" : \
+ add %0,%1" : \
: \
"r" (delta), "m" (*(volatile long *)p));
}
static inline void atomic_decl(volatile long * p, long delta)
{
__asm__ volatile (" lock \n \
- subl %0,%1" : \
+ sub %0,%1" : \
: \
"r" (delta), "m" (*(volatile long *)p));
}
static inline int atomic_decl_and_test(volatile long * p, long delta)
{
uint8_t ret;
- asm volatile (
+ __asm__ volatile (
" lock \n\t"
- " subl %1,%2 \n\t"
+ " sub %1,%2 \n\t"
" sete %0"
: "=qm" (ret)
: "r" (delta), "m" (*(volatile long *)p));
projects / apple / xnu.git / blobdiff