Merge commit 'refs/top-bases/linux-zfs-branch' into linux-zfs-branch
This commit is contained in:
Brian Behlendorf
commit
b606fd71bb
|
|
@ -2,20 +2,18 @@ dnl #
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|||
dnl # Set the target arch for libspl atomic implementation
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||||
dnl #
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||||
AC_DEFUN([ZFS_AC_CONFIG_USER_ARCH], [
|
||||
AC_MSG_CHECKING(for target arch)
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||||
AC_MSG_CHECKING(for target asm dir)
|
||||
TARGET_ARCH=`echo ${target_cpu} | sed -e s/i.86/i386/`
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||||
TARGET_ARCH_DIR=asm-$TARGET_ARCH
|
||||
AC_MSG_RESULT([$TARGET_ARCH])
|
||||
|
||||
case $TARGET_ARCH in
|
||||
i386|x86_64|powerpc64)
|
||||
AC_SUBST([TARGET_ARCH])
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||||
AC_SUBST([TARGET_ARCH_DIR])
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||||
i386|x86_64)
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||||
TARGET_ASM_DIR=asm-${TARGET_ARCH}
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||||
;;
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||||
*)
|
||||
AC_MSG_ERROR([
|
||||
*** Unsupported architecture $TARGET_ARCH
|
||||
*** Available architectures: x86, x86_64, powerpc64])
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||||
TARGET_ASM_DIR=asm-generic
|
||||
;;
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||||
esac
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||||
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||||
AC_SUBST([TARGET_ASM_DIR])
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||||
AC_MSG_RESULT([$TARGET_ASM_DIR])
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||||
])
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|
|
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|||
|
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@ -55,9 +55,9 @@ AC_CONFIG_FILES([
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doc/Makefile
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lib/Makefile
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lib/libspl/Makefile
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lib/libspl/asm-generic/Makefile
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||||
lib/libspl/asm-i386/Makefile
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||||
lib/libspl/asm-x86_64/Makefile
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||||
lib/libspl/asm-powerpc64/Makefile
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||||
lib/libspl/include/Makefile
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||||
lib/libavl/Makefile
|
||||
lib/libnvpair/Makefile
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||||
|
|
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|||
|
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@ -1,7 +1,7 @@
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include $(top_srcdir)/config/Rules.am
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|
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SUBDIRS = include $(TARGET_ARCH_DIR)
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DIST_SUBDIRS = include asm-i386 asm-x86_64 asm-powerpc64
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||||
SUBDIRS = include $(TARGET_ASM_DIR)
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||||
DIST_SUBDIRS = include asm-generic asm-i386 asm-x86_64
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|
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DEFAULT_INCLUDES += \
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-I${top_srcdir}/lib/libspl/include
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||||
|
|
@ -22,6 +22,6 @@ libspl_la_SOURCES = \
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|||
${top_srcdir}/lib/libspl/strnlen.c \
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||||
${top_srcdir}/lib/libspl/zone.c \
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||||
${top_srcdir}/lib/libspl/xdr.c \
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||||
${top_srcdir}/lib/libspl/${TARGET_ARCH_DIR}/atomic.S \
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||||
${top_srcdir}/lib/libspl/${TARGET_ASM_DIR}/atomic.S \
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||||
${top_srcdir}/lib/libspl/include/sys/list.h \
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||||
${top_srcdir}/lib/libspl/include/sys/list_impl.h
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|
|
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|||
|
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@ -0,0 +1,426 @@
|
|||
/*
|
||||
* CDDL HEADER START
|
||||
*
|
||||
* The contents of this file are subject to the terms of the
|
||||
* Common Development and Distribution License, Version 1.0 only
|
||||
* (the "License"). You may not use this file except in compliance
|
||||
* with the License.
|
||||
*
|
||||
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
|
||||
* or http://www.opensolaris.org/os/licensing.
|
||||
* See the License for the specific language governing permissions
|
||||
* and limitations under the License.
|
||||
*
|
||||
* When distributing Covered Code, include this CDDL HEADER in each
|
||||
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
|
||||
* If applicable, add the following below this CDDL HEADER, with the
|
||||
* fields enclosed by brackets "[]" replaced with your own identifying
|
||||
* information: Portions Copyright [yyyy] [name of copyright owner]
|
||||
*
|
||||
* CDDL HEADER END
|
||||
*/
|
||||
/*
|
||||
* Copyright (c) 2009 by Sun Microsystems, Inc. All rights reserved.
|
||||
* Use is subject to license terms.
|
||||
*/
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||||
|
||||
#include <atomic.h>
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||||
#include <assert.h>
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||||
#include <pthread.h>
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||||
|
||||
/*
|
||||
* All operations are implemented by serializing them through a global
|
||||
* pthread mutex. This provides a correct generic implementation.
|
||||
* However all supported architectures are encouraged to provide a
|
||||
* native implementation is assembly for performance reasons.
|
||||
*/
|
||||
pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER;
|
||||
|
||||
/*
|
||||
* Theses are the void returning variants
|
||||
*/
|
||||
|
||||
#define ATOMIC_INC(name, type) \
|
||||
void atomic_inc_##name(volatile type *target) \
|
||||
{ \
|
||||
VERIFY3S(pthread_mutex_lock(&atomic_lock), ==, 0); \
|
||||
(*target)++; \
|
||||
VERIFY3S(pthread_mutex_unlock(&atomic_lock), ==, 0); \
|
||||
}
|
||||
|
||||
ATOMIC_INC(long, unsigned long)
|
||||
ATOMIC_INC(8, uint8_t)
|
||||
ATOMIC_INC(uchar, uchar_t)
|
||||
ATOMIC_INC(16, uint16_t)
|
||||
ATOMIC_INC(ushort, ushort_t)
|
||||
ATOMIC_INC(32, uint32_t)
|
||||
ATOMIC_INC(uint, uint_t)
|
||||
ATOMIC_INC(ulong, ulong_t)
|
||||
ATOMIC_INC(64, uint64_t)
|
||||
|
||||
|
||||
#define ATOMIC_DEC(name, type) \
|
||||
void atomic_dec_##name(volatile type *target) \
|
||||
{ \
|
||||
VERIFY3S(pthread_mutex_lock(&atomic_lock), ==, 0); \
|
||||
(*target)--; \
|
||||
VERIFY3S(pthread_mutex_unlock(&atomic_lock), ==, 0); \
|
||||
}
|
||||
|
||||
ATOMIC_DEC(long, unsigned long)
|
||||
ATOMIC_DEC(8, uint8_t)
|
||||
ATOMIC_DEC(uchar, uchar_t)
|
||||
ATOMIC_DEC(16, uint16_t)
|
||||
ATOMIC_DEC(ushort, ushort_t)
|
||||
ATOMIC_DEC(32, uint32_t)
|
||||
ATOMIC_DEC(uint, uint_t)
|
||||
ATOMIC_DEC(ulong, ulong_t)
|
||||
ATOMIC_DEC(64, uint64_t)
|
||||
|
||||
|
||||
#define ATOMIC_ADD(name, type1, type2) \
|
||||
void atomic_add_##name(volatile type1 *target, type2 bits) \
|
||||
{ \
|
||||
VERIFY3S(pthread_mutex_lock(&atomic_lock), ==, 0); \
|
||||
*target += bits; \
|
||||
VERIFY3S(pthread_mutex_unlock(&atomic_lock), ==, 0); \
|
||||
}
|
||||
|
||||
ATOMIC_ADD(8, uint8_t, int8_t)
|
||||
ATOMIC_ADD(char, uchar_t, signed char)
|
||||
ATOMIC_ADD(16, uint16_t, int16_t)
|
||||
ATOMIC_ADD(short, ushort_t, short)
|
||||
ATOMIC_ADD(32, uint32_t, int32_t)
|
||||
ATOMIC_ADD(int, uint_t, int)
|
||||
ATOMIC_ADD(long, ulong_t, long)
|
||||
ATOMIC_ADD(64, uint64_t, int64_t)
|
||||
|
||||
void atomic_add_ptr(volatile void *target, ssize_t bits)
|
||||
{
|
||||
VERIFY3S(pthread_mutex_lock(&atomic_lock), ==, 0);
|
||||
*(caddr_t *)target += bits;
|
||||
VERIFY3S(pthread_mutex_unlock(&atomic_lock), ==, 0);
|
||||
}
|
||||
|
||||
|
||||
#define ATOMIC_OR(name, type) \
|
||||
void atomic_or_##name(volatile type *target, type bits) \
|
||||
{ \
|
||||
VERIFY3S(pthread_mutex_lock(&atomic_lock), ==, 0); \
|
||||
*target |= bits; \
|
||||
VERIFY3S(pthread_mutex_unlock(&atomic_lock), ==, 0); \
|
||||
}
|
||||
|
||||
ATOMIC_OR(long, ulong_t)
|
||||
ATOMIC_OR(8, uint8_t)
|
||||
ATOMIC_OR(uchar, uchar_t)
|
||||
ATOMIC_OR(16, uint16_t)
|
||||
ATOMIC_OR(ushort, ushort_t)
|
||||
ATOMIC_OR(32, uint32_t)
|
||||
ATOMIC_OR(uint, uint_t)
|
||||
ATOMIC_OR(ulong, ulong_t)
|
||||
ATOMIC_OR(64, uint64_t)
|
||||
|
||||
|
||||
#define ATOMIC_AND(name, type) \
|
||||
void atomic_and_##name(volatile type *target, type bits) \
|
||||
{ \
|
||||
VERIFY3S(pthread_mutex_lock(&atomic_lock), ==, 0); \
|
||||
*target &= bits; \
|
||||
VERIFY3S(pthread_mutex_unlock(&atomic_lock), ==, 0); \
|
||||
}
|
||||
|
||||
ATOMIC_AND(long, ulong_t)
|
||||
ATOMIC_AND(8, uint8_t)
|
||||
ATOMIC_AND(uchar, uchar_t)
|
||||
ATOMIC_AND(16, uint16_t)
|
||||
ATOMIC_AND(ushort, ushort_t)
|
||||
ATOMIC_AND(32, uint32_t)
|
||||
ATOMIC_AND(uint, uint_t)
|
||||
ATOMIC_AND(ulong, ulong_t)
|
||||
ATOMIC_AND(64, uint64_t)
|
||||
|
||||
|
||||
/*
|
||||
* New value returning variants
|
||||
*/
|
||||
|
||||
#define ATOMIC_INC_NV(name, type) \
|
||||
type atomic_inc_##name##_nv(volatile type *target) \
|
||||
{ \
|
||||
type rc; \
|
||||
VERIFY3S(pthread_mutex_lock(&atomic_lock), ==, 0); \
|
||||
rc = (++(*target)); \
|
||||
VERIFY3S(pthread_mutex_unlock(&atomic_lock), ==, 0); \
|
||||
return rc; \
|
||||
}
|
||||
|
||||
ATOMIC_INC_NV(long, unsigned long)
|
||||
ATOMIC_INC_NV(8, uint8_t)
|
||||
ATOMIC_INC_NV(uchar, uchar_t)
|
||||
ATOMIC_INC_NV(16, uint16_t)
|
||||
ATOMIC_INC_NV(ushort, ushort_t)
|
||||
ATOMIC_INC_NV(32, uint32_t)
|
||||
ATOMIC_INC_NV(uint, uint_t)
|
||||
ATOMIC_INC_NV(ulong, ulong_t)
|
||||
ATOMIC_INC_NV(64, uint64_t)
|
||||
|
||||
|
||||
#define ATOMIC_DEC_NV(name, type) \
|
||||
type atomic_dec_##name##_nv(volatile type *target) \
|
||||
{ \
|
||||
type rc; \
|
||||
VERIFY3S(pthread_mutex_lock(&atomic_lock), ==, 0); \
|
||||
rc = (--(*target)); \
|
||||
VERIFY3S(pthread_mutex_unlock(&atomic_lock), ==, 0); \
|
||||
return rc; \
|
||||
}
|
||||
|
||||
ATOMIC_DEC_NV(long, unsigned long)
|
||||
ATOMIC_DEC_NV(8, uint8_t)
|
||||
ATOMIC_DEC_NV(uchar, uchar_t)
|
||||
ATOMIC_DEC_NV(16, uint16_t)
|
||||
ATOMIC_DEC_NV(ushort, ushort_t)
|
||||
ATOMIC_DEC_NV(32, uint32_t)
|
||||
ATOMIC_DEC_NV(uint, uint_t)
|
||||
ATOMIC_DEC_NV(ulong, ulong_t)
|
||||
ATOMIC_DEC_NV(64, uint64_t)
|
||||
|
||||
|
||||
#define ATOMIC_ADD_NV(name, type1, type2) \
|
||||
type1 atomic_add_##name##_nv(volatile type1 *target, type2 bits)\
|
||||
{ \
|
||||
type1 rc; \
|
||||
VERIFY3S(pthread_mutex_lock(&atomic_lock), ==, 0); \
|
||||
rc = (*target += bits); \
|
||||
VERIFY3S(pthread_mutex_unlock(&atomic_lock), ==, 0); \
|
||||
return rc; \
|
||||
}
|
||||
|
||||
ATOMIC_ADD_NV(8, uint8_t, int8_t)
|
||||
ATOMIC_ADD_NV(char, uchar_t, signed char)
|
||||
ATOMIC_ADD_NV(16, uint16_t, int16_t)
|
||||
ATOMIC_ADD_NV(short, ushort_t, short)
|
||||
ATOMIC_ADD_NV(32, uint32_t, int32_t)
|
||||
ATOMIC_ADD_NV(int, uint_t, int)
|
||||
ATOMIC_ADD_NV(long, ulong_t, long)
|
||||
ATOMIC_ADD_NV(64, uint64_t, int64_t)
|
||||
|
||||
void *atomic_add_ptr_nv(volatile void *target, ssize_t bits)
|
||||
{
|
||||
void *ptr;
|
||||
|
||||
VERIFY3S(pthread_mutex_lock(&atomic_lock), ==, 0);
|
||||
ptr = (*(caddr_t *)target += bits);
|
||||
VERIFY3S(pthread_mutex_unlock(&atomic_lock), ==, 0);
|
||||
|
||||
return ptr;
|
||||
}
|
||||
|
||||
|
||||
#define ATOMIC_OR_NV(name, type) \
|
||||
type atomic_or_##name##_nv(volatile type *target, type bits) \
|
||||
{ \
|
||||
type rc; \
|
||||
VERIFY3S(pthread_mutex_lock(&atomic_lock), ==, 0); \
|
||||
rc = (*target |= bits); \
|
||||
VERIFY3S(pthread_mutex_unlock(&atomic_lock), ==, 0); \
|
||||
return rc; \
|
||||
}
|
||||
|
||||
ATOMIC_OR_NV(long, unsigned long)
|
||||
ATOMIC_OR_NV(8, uint8_t)
|
||||
ATOMIC_OR_NV(uchar, uchar_t)
|
||||
ATOMIC_OR_NV(16, uint16_t)
|
||||
ATOMIC_OR_NV(ushort, ushort_t)
|
||||
ATOMIC_OR_NV(32, uint32_t)
|
||||
ATOMIC_OR_NV(uint, uint_t)
|
||||
ATOMIC_OR_NV(ulong, ulong_t)
|
||||
ATOMIC_OR_NV(64, uint64_t)
|
||||
|
||||
|
||||
#define ATOMIC_AND_NV(name, type) \
|
||||
type atomic_and_##name##_nv(volatile type *target, type bits) \
|
||||
{ \
|
||||
type rc; \
|
||||
VERIFY3S(pthread_mutex_lock(&atomic_lock), ==, 0); \
|
||||
rc = (*target &= bits); \
|
||||
VERIFY3S(pthread_mutex_unlock(&atomic_lock), ==, 0); \
|
||||
return rc; \
|
||||
}
|
||||
|
||||
ATOMIC_AND_NV(long, unsigned long)
|
||||
ATOMIC_AND_NV(8, uint8_t)
|
||||
ATOMIC_AND_NV(uchar, uchar_t)
|
||||
ATOMIC_AND_NV(16, uint16_t)
|
||||
ATOMIC_AND_NV(ushort, ushort_t)
|
||||
ATOMIC_AND_NV(32, uint32_t)
|
||||
ATOMIC_AND_NV(uint, uint_t)
|
||||
ATOMIC_AND_NV(ulong, ulong_t)
|
||||
ATOMIC_AND_NV(64, uint64_t)
|
||||
|
||||
|
||||
/*
|
||||
* If *arg1 == arg2, set *arg1 = arg3; return old value
|
||||
*/
|
||||
|
||||
#define ATOMIC_CAS(name, type) \
|
||||
type atomic_cas_##name(volatile type *target, type arg1, type arg2) \
|
||||
{ \
|
||||
type old; \
|
||||
VERIFY3S(pthread_mutex_lock(&atomic_lock), ==, 0); \
|
||||
old = *target; \
|
||||
if (old == arg1) \
|
||||
*target = arg2; \
|
||||
VERIFY3S(pthread_mutex_unlock(&atomic_lock), ==, 0); \
|
||||
return old; \
|
||||
}
|
||||
|
||||
ATOMIC_CAS(8, uint8_t)
|
||||
ATOMIC_CAS(uchar, uchar_t)
|
||||
ATOMIC_CAS(16, uint16_t)
|
||||
ATOMIC_CAS(ushort, ushort_t)
|
||||
ATOMIC_CAS(32, uint32_t)
|
||||
ATOMIC_CAS(uint, uint_t)
|
||||
ATOMIC_CAS(ulong, ulong_t)
|
||||
ATOMIC_CAS(64, uint64_t)
|
||||
|
||||
void *atomic_cas_ptr(volatile void *target, void *arg1, void *arg2)
|
||||
{
|
||||
void *old;
|
||||
|
||||
VERIFY3S(pthread_mutex_lock(&atomic_lock), ==, 0);
|
||||
old = *(void **)target;
|
||||
if (old == arg1)
|
||||
*(void **)target = arg2;
|
||||
VERIFY3S(pthread_mutex_unlock(&atomic_lock), ==, 0);
|
||||
|
||||
return old;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Swap target and return old value
|
||||
*/
|
||||
|
||||
#define ATOMIC_SWAP(name, type) \
|
||||
type atomic_swap_##name(volatile type *target, type bits) \
|
||||
{ \
|
||||
type old; \
|
||||
VERIFY3S(pthread_mutex_lock(&atomic_lock), ==, 0); \
|
||||
old = *target; \
|
||||
*target = bits; \
|
||||
VERIFY3S(pthread_mutex_unlock(&atomic_lock), ==, 0); \
|
||||
return old; \
|
||||
}
|
||||
|
||||
ATOMIC_SWAP(8, uint8_t)
|
||||
ATOMIC_SWAP(uchar, uchar_t)
|
||||
ATOMIC_SWAP(16, uint16_t)
|
||||
ATOMIC_SWAP(ushort, ushort_t)
|
||||
ATOMIC_SWAP(32, uint32_t)
|
||||
ATOMIC_SWAP(uint, uint_t)
|
||||
ATOMIC_SWAP(ulong, ulong_t)
|
||||
ATOMIC_SWAP(64, uint64_t)
|
||||
|
||||
void *atomic_swap_ptr(volatile void *target, void *bits)
|
||||
{
|
||||
void *old;
|
||||
|
||||
VERIFY3S(pthread_mutex_lock(&atomic_lock), ==, 0);
|
||||
old = *(void **)target;
|
||||
*(void **)target = bits;
|
||||
VERIFY3S(pthread_mutex_unlock(&atomic_lock), ==, 0);
|
||||
|
||||
return old;
|
||||
}
|
||||
|
||||
|
||||
int atomic_set_long_excl(volatile ulong_t *target, uint_t value)
|
||||
{
|
||||
ulong_t bit;
|
||||
|
||||
VERIFY3S(pthread_mutex_lock(&atomic_lock), ==, 0);
|
||||
bit = (1UL << value);
|
||||
if ((*target & bit) != 0) {
|
||||
VERIFY3S(pthread_mutex_unlock(&atomic_lock), ==, 0);
|
||||
return -1;
|
||||
}
|
||||
*target |= bit;
|
||||
VERIFY3S(pthread_mutex_unlock(&atomic_lock), ==, 0);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int atomic_clear_long_excl(volatile ulong_t *target, uint_t value)
|
||||
{
|
||||
ulong_t bit;
|
||||
|
||||
VERIFY3S(pthread_mutex_lock(&atomic_lock), ==, 0);
|
||||
bit = (1UL << value);
|
||||
if ((*target & bit) != 0) {
|
||||
VERIFY3S(pthread_mutex_unlock(&atomic_lock), ==, 0);
|
||||
return -1;
|
||||
}
|
||||
*target &= ~bit;
|
||||
VERIFY3S(pthread_mutex_unlock(&atomic_lock), ==, 0);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
void membar_enter(void)
|
||||
{
|
||||
/* XXX - Implement me */
|
||||
}
|
||||
|
||||
void membar_exit(void)
|
||||
{
|
||||
/* XXX - Implement me */
|
||||
}
|
||||
|
||||
void membar_producer(void)
|
||||
{
|
||||
/* XXX - Implement me */
|
||||
}
|
||||
|
||||
void membar_consumer(void)
|
||||
{
|
||||
/* XXX - Implement me */
|
||||
}
|
||||
|
||||
/* Legacy kernel interfaces; they will go away (eventually). */
|
||||
|
||||
uint8_t cas8(uint8_t *target, uint8_t arg1, uint8_t arg2)
|
||||
{
|
||||
return atomic_cas_8(target, arg1, arg2);
|
||||
}
|
||||
|
||||
uint32_t cas32(uint32_t *target, uint32_t arg1, uint32_t arg2)
|
||||
{
|
||||
return atomic_cas_32(target, arg1, arg2);
|
||||
}
|
||||
|
||||
uint64_t cas64(uint64_t *target, uint64_t arg1, uint64_t arg2)
|
||||
{
|
||||
return atomic_cas_64(target, arg1, arg2);
|
||||
}
|
||||
|
||||
ulong_t caslong(ulong_t *target, ulong_t arg1, ulong_t arg2)
|
||||
{
|
||||
return atomic_cas_ulong(target, arg1, arg2);
|
||||
}
|
||||
|
||||
void *casptr(void *target, void *arg1, void *arg2)
|
||||
{
|
||||
return atomic_cas_ptr(target, arg1, arg2);
|
||||
}
|
||||
|
||||
void atomic_and_long(ulong_t *target, ulong_t bits)
|
||||
{
|
||||
return atomic_and_ulong(target, bits);
|
||||
}
|
||||
|
||||
void atomic_or_long(ulong_t *target, ulong_t bits)
|
||||
{
|
||||
return atomic_or_ulong(target, bits);
|
||||
}
|
||||
|
|
@ -1,552 +0,0 @@
|
|||
/*
|
||||
* CDDL HEADER START
|
||||
*
|
||||
* The contents of this file are subject to the terms of the
|
||||
* Common Development and Distribution License, Version 1.0 only
|
||||
* (the "License"). You may not use this file except in compliance
|
||||
* with the License.
|
||||
*
|
||||
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
|
||||
* or http://www.opensolaris.org/os/licensing.
|
||||
* See the License for the specific language governing permissions
|
||||
* and limitations under the License.
|
||||
*
|
||||
* When distributing Covered Code, include this CDDL HEADER in each
|
||||
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
|
||||
* If applicable, add the following below this CDDL HEADER, with the
|
||||
* fields enclosed by brackets "[]" replaced with your own identifying
|
||||
* information: Portions Copyright [yyyy] [name of copyright owner]
|
||||
*
|
||||
* CDDL HEADER END
|
||||
*/
|
||||
/*
|
||||
* Copyright (c) 2006 by Sun Microsystems, Inc. All rights reserved.
|
||||
* Use is subject to license terms.
|
||||
*/
|
||||
|
||||
#include <atomic.h>
|
||||
|
||||
/*
|
||||
* Theses are the void returning variants
|
||||
*/
|
||||
|
||||
#define ATOMIC_INC(name, type) \
|
||||
void atomic_inc_##name(volatile type *target) \
|
||||
{ \
|
||||
type lock; \
|
||||
\
|
||||
__asm__ __volatile__( \
|
||||
"1: lwarx %[lock],0,%[target]\n" \
|
||||
" addi %[lock],%[lock],1\n" \
|
||||
" stwcx. %[lock],0,%[target]\n" \
|
||||
" bne- 1b" \
|
||||
: [lock] "=&r" (lock) \
|
||||
: [target] "r" (target) \
|
||||
: "cc"); \
|
||||
}
|
||||
|
||||
ATOMIC_INC(long, unsigned long)
|
||||
ATOMIC_INC(8, uint8_t)
|
||||
ATOMIC_INC(uchar, uchar_t)
|
||||
ATOMIC_INC(16, uint16_t)
|
||||
ATOMIC_INC(ushort, ushort_t)
|
||||
ATOMIC_INC(32, uint32_t)
|
||||
ATOMIC_INC(uint, uint_t)
|
||||
ATOMIC_INC(ulong, ulong_t)
|
||||
|
||||
#if defined(_KERNEL) || defined(_INT64_TYPE)
|
||||
void atomic_inc_64(volatile uint64_t *target)
|
||||
{
|
||||
/* XXX - Implement me */
|
||||
(*target)++;
|
||||
}
|
||||
#endif
|
||||
|
||||
#define ATOMIC_DEC(name, type) \
|
||||
void atomic_dec_##name(volatile type *target) \
|
||||
{ \
|
||||
type lock; \
|
||||
\
|
||||
__asm__ __volatile__( \
|
||||
"1: lwarx %[lock],0,%[target]\n" \
|
||||
" addi %[lock],%[lock],-1\n" \
|
||||
" stwcx. %[lock],0,%[target]\n" \
|
||||
" bne- 1b" \
|
||||
: [lock] "=&r" (lock) \
|
||||
: [target] "r" (target) \
|
||||
: "cc"); \
|
||||
}
|
||||
|
||||
ATOMIC_DEC(long, unsigned long)
|
||||
ATOMIC_DEC(8, uint8_t)
|
||||
ATOMIC_DEC(uchar, uchar_t)
|
||||
ATOMIC_DEC(16, uint16_t)
|
||||
ATOMIC_DEC(ushort, ushort_t)
|
||||
ATOMIC_DEC(32, uint32_t)
|
||||
ATOMIC_DEC(uint, uint_t)
|
||||
ATOMIC_DEC(ulong, ulong_t)
|
||||
|
||||
#if defined(_KERNEL) || defined(_INT64_TYPE)
|
||||
void atomic_dec_64(volatile uint64_t *target)
|
||||
{
|
||||
/* XXX - Implement me */
|
||||
(*target)--;
|
||||
}
|
||||
#endif
|
||||
|
||||
#define ATOMIC_ADD(name, type1, type2) \
|
||||
void atomic_add_##name(volatile type1 *target, type2 bits) \
|
||||
{ \
|
||||
type1 lock; \
|
||||
\
|
||||
__asm__ __volatile__( \
|
||||
"1: lwarx %[lock],0,%[target]\n" \
|
||||
" add %[lock],%[bits],%[lock]\n" \
|
||||
" stwcx. %[lock],0,%[target]\n" \
|
||||
" bne- 1b" \
|
||||
: [lock] "=&r" (lock) \
|
||||
: [target] "r" (target), [bits] "r" (bits) \
|
||||
: "cc"); \
|
||||
}
|
||||
|
||||
ATOMIC_ADD(8, uint8_t, int8_t)
|
||||
ATOMIC_ADD(char, uchar_t, signed char)
|
||||
ATOMIC_ADD(16, uint16_t, int16_t)
|
||||
ATOMIC_ADD(short, ushort_t, short)
|
||||
ATOMIC_ADD(32, uint32_t, int32_t)
|
||||
ATOMIC_ADD(int, uint_t, int)
|
||||
ATOMIC_ADD(long, ulong_t, long)
|
||||
|
||||
void atomic_add_ptr(volatile void *target, ssize_t bits)
|
||||
{
|
||||
/* XXX - Implement me */
|
||||
*(caddr_t *)target += bits;
|
||||
}
|
||||
|
||||
#if defined(_KERNEL) || defined(_INT64_TYPE)
|
||||
void atomic_add_64(volatile uint64_t *target, int64_t bits)
|
||||
{
|
||||
/* XXX - Implement me */
|
||||
*target += bits;
|
||||
}
|
||||
#endif
|
||||
|
||||
#define ATOMIC_OR(name, type) \
|
||||
void atomic_or_##name(volatile type *target, type bits) \
|
||||
{ \
|
||||
type lock; \
|
||||
\
|
||||
__asm__ __volatile__( \
|
||||
"1: lwarx %[lock],0,%[target]\n" \
|
||||
" or %[lock],%[bits],%[lock]\n" \
|
||||
" stwcx. %[lock],0,%[target]\n" \
|
||||
" bne- 1b" \
|
||||
: [lock] "=&r" (lock) \
|
||||
: [target] "r" (target), [bits] "r" (bits) \
|
||||
: "cc"); \
|
||||
}
|
||||
|
||||
//ATOMIC_OR(long, ulong_t)
|
||||
ATOMIC_OR(8, uint8_t)
|
||||
ATOMIC_OR(uchar, uchar_t)
|
||||
ATOMIC_OR(16, uint16_t)
|
||||
ATOMIC_OR(ushort, ushort_t)
|
||||
ATOMIC_OR(32, uint32_t)
|
||||
ATOMIC_OR(uint, uint_t)
|
||||
ATOMIC_OR(ulong, ulong_t)
|
||||
|
||||
#if defined(_KERNEL) || defined(_INT64_TYPE)
|
||||
void atomic_or_64(volatile uint64_t *target, uint64_t bits)
|
||||
{
|
||||
/* XXX - Implement me */
|
||||
*target |= bits;
|
||||
}
|
||||
#endif
|
||||
|
||||
#define ATOMIC_AND(name, type) \
|
||||
void atomic_and_##name(volatile type *target, type bits) \
|
||||
{ \
|
||||
type lock; \
|
||||
\
|
||||
__asm__ __volatile__( \
|
||||
"1: lwarx %[lock],0,%[target]\n" \
|
||||
" and %[lock],%[bits],%[lock]\n" \
|
||||
" stwcx. %[lock],0,%[target]\n" \
|
||||
" bne- 1b" \
|
||||
: [lock] "=&r" (lock) \
|
||||
: [target] "r" (target), [bits] "r" (bits) \
|
||||
: "cc"); \
|
||||
}
|
||||
|
||||
//ATOMIC_AND(long, ulong_t)
|
||||
ATOMIC_AND(8, uint8_t)
|
||||
ATOMIC_AND(uchar, uchar_t)
|
||||
ATOMIC_AND(16, uint16_t)
|
||||
ATOMIC_AND(ushort, ushort_t)
|
||||
ATOMIC_AND(32, uint32_t)
|
||||
ATOMIC_AND(uint, uint_t)
|
||||
ATOMIC_AND(ulong, ulong_t)
|
||||
|
||||
#if defined(_KERNEL) || defined(_INT64_TYPE)
|
||||
void atomic_and_64(volatile uint64_t *target, uint64_t bits)
|
||||
{
|
||||
/* XXX - Implement me */
|
||||
*target &= bits;
|
||||
}
|
||||
#endif
|
||||
|
||||
/*
|
||||
* New value returning variants
|
||||
*/
|
||||
|
||||
#define ATOMIC_INC_NV(name, type) \
|
||||
type atomic_inc_##name##_nv(volatile type *target) \
|
||||
{ \
|
||||
type lock; \
|
||||
\
|
||||
__asm__ __volatile__( \
|
||||
"1: lwarx %[lock],0,%[target]\n" \
|
||||
" addi %[lock],%[lock],1\n" \
|
||||
" stwcx. %[lock],0,%[target]\n" \
|
||||
" bne- 1b" \
|
||||
: [lock] "=&r" (lock) \
|
||||
: [target] "r" (target) \
|
||||
: "cc"); \
|
||||
\
|
||||
return lock; \
|
||||
}
|
||||
|
||||
ATOMIC_INC_NV(long, unsigned long)
|
||||
ATOMIC_INC_NV(8, uint8_t)
|
||||
ATOMIC_INC_NV(uchar, uchar_t)
|
||||
ATOMIC_INC_NV(16, uint16_t)
|
||||
ATOMIC_INC_NV(ushort, ushort_t)
|
||||
ATOMIC_INC_NV(32, uint32_t)
|
||||
ATOMIC_INC_NV(uint, uint_t)
|
||||
ATOMIC_INC_NV(ulong, ulong_t)
|
||||
|
||||
#if defined(_KERNEL) || defined(_INT64_TYPE)
|
||||
uint64_t atomic_inc_64_nv(volatile uint64_t *target)
|
||||
{
|
||||
/* XXX - Implement me */
|
||||
return (++(*target));
|
||||
}
|
||||
#endif
|
||||
|
||||
#define ATOMIC_DEC_NV(name, type) \
|
||||
type atomic_dec_##name##_nv(volatile type *target) \
|
||||
{ \
|
||||
type lock; \
|
||||
\
|
||||
__asm__ __volatile__( \
|
||||
"1: lwarx %[lock],0,%[target]\n" \
|
||||
" addi %[lock],%[lock],-1\n" \
|
||||
" stwcx. %[lock],0,%[target]\n" \
|
||||
" bne- 1b" \
|
||||
: [lock] "=&r" (lock) \
|
||||
: [target] "r" (target) \
|
||||
: "cc"); \
|
||||
\
|
||||
return lock; \
|
||||
}
|
||||
|
||||
ATOMIC_DEC_NV(long, unsigned long)
|
||||
ATOMIC_DEC_NV(8, uint8_t)
|
||||
ATOMIC_DEC_NV(uchar, uchar_t)
|
||||
ATOMIC_DEC_NV(16, uint16_t)
|
||||
ATOMIC_DEC_NV(ushort, ushort_t)
|
||||
ATOMIC_DEC_NV(32, uint32_t)
|
||||
ATOMIC_DEC_NV(uint, uint_t)
|
||||
ATOMIC_DEC_NV(ulong, ulong_t)
|
||||
|
||||
#if defined(_KERNEL) || defined(_INT64_TYPE)
|
||||
uint64_t atomic_dec_64_nv(volatile uint64_t *target)
|
||||
{
|
||||
/* XXX - Implement me */
|
||||
return (--(*target));
|
||||
}
|
||||
#endif
|
||||
|
||||
#define ATOMIC_ADD_NV(name, type1, type2) \
|
||||
type1 atomic_add_##name##_nv(volatile type1 *target, type2 bits) \
|
||||
{ \
|
||||
type1 lock; \
|
||||
\
|
||||
__asm__ __volatile__( \
|
||||
"1: lwarx %[lock],0,%[target]\n" \
|
||||
" add %[lock],%[bits],%[lock]\n" \
|
||||
" stwcx. %[lock],0,%[target]\n" \
|
||||
" bne- 1b" \
|
||||
: [lock] "=&r" (lock) \
|
||||
: [target] "r" (target), [bits] "r" (bits) \
|
||||
: "cc"); \
|
||||
\
|
||||
return lock; \
|
||||
}
|
||||
|
||||
ATOMIC_ADD_NV(8, uint8_t, int8_t)
|
||||
ATOMIC_ADD_NV(char, uchar_t, signed char)
|
||||
ATOMIC_ADD_NV(16, uint16_t, int16_t)
|
||||
ATOMIC_ADD_NV(short, ushort_t, short)
|
||||
ATOMIC_ADD_NV(32, uint32_t, int32_t)
|
||||
ATOMIC_ADD_NV(int, uint_t, int)
|
||||
ATOMIC_ADD_NV(long, ulong_t, long)
|
||||
|
||||
void *atomic_add_ptr_nv(volatile void *target, ssize_t bits)
|
||||
{
|
||||
/* XXX - Implement me */
|
||||
return (*(caddr_t *)target += bits);
|
||||
}
|
||||
|
||||
#if defined(_KERNEL) || defined(_INT64_TYPE)
|
||||
uint64_t atomic_add_64_nv(volatile uint64_t *target, int64_t bits)
|
||||
{
|
||||
/* XXX - Implement me */
|
||||
return (*target += bits);
|
||||
}
|
||||
#endif
|
||||
|
||||
#define ATOMIC_OR_NV(name, type) \
|
||||
type atomic_or_##name##_nv(volatile type *target, type bits) \
|
||||
{ \
|
||||
type lock; \
|
||||
\
|
||||
__asm__ __volatile__( \
|
||||
"1: lwarx %[lock],0,%[target]\n" \
|
||||
" or %[lock],%[bits],%[lock]\n" \
|
||||
" stwcx. %[lock],0,%[target]\n" \
|
||||
" bne- 1b" \
|
||||
: [lock] "=&r" (lock) \
|
||||
: [target] "r" (target), [bits] "r" (bits) \
|
||||
: "cc"); \
|
||||
\
|
||||
return lock; \
|
||||
}
|
||||
|
||||
ATOMIC_OR_NV(long, unsigned long)
|
||||
ATOMIC_OR_NV(8, uint8_t)
|
||||
ATOMIC_OR_NV(uchar, uchar_t)
|
||||
ATOMIC_OR_NV(16, uint16_t)
|
||||
ATOMIC_OR_NV(ushort, ushort_t)
|
||||
ATOMIC_OR_NV(32, uint32_t)
|
||||
ATOMIC_OR_NV(uint, uint_t)
|
||||
ATOMIC_OR_NV(ulong, ulong_t)
|
||||
|
||||
#if defined(_KERNEL) || defined(_INT64_TYPE)
|
||||
uint64_t atomic_or_64_nv(volatile uint64_t *target, uint64_t bits)
|
||||
{
|
||||
/* XXX - Implement me */
|
||||
return (*target |= bits);
|
||||
}
|
||||
#endif
|
||||
|
||||
#define ATOMIC_AND_NV(name, type) \
|
||||
type atomic_and_##name##_nv(volatile type *target, type bits) \
|
||||
{ \
|
||||
type lock; \
|
||||
\
|
||||
__asm__ __volatile__( \
|
||||
"1: lwarx %[lock],0,%[target]\n" \
|
||||
" and %[lock],%[bits],%[lock]\n" \
|
||||
" stwcx. %[lock],0,%[target]\n" \
|
||||
" bne- 1b" \
|
||||
: [lock] "=&r" (lock) \
|
||||
: [target] "r" (target), [bits] "r" (bits) \
|
||||
: "cc"); \
|
||||
\
|
||||
return lock; \
|
||||
}
|
||||
|
||||
ATOMIC_AND_NV(long, unsigned long)
|
||||
ATOMIC_AND_NV(8, uint8_t)
|
||||
ATOMIC_AND_NV(uchar, uchar_t)
|
||||
ATOMIC_AND_NV(16, uint16_t)
|
||||
ATOMIC_AND_NV(ushort, ushort_t)
|
||||
ATOMIC_AND_NV(32, uint32_t)
|
||||
ATOMIC_AND_NV(uint, uint_t)
|
||||
ATOMIC_AND_NV(ulong, ulong_t)
|
||||
|
||||
#if defined(_KERNEL) || defined(_INT64_TYPE)
|
||||
uint64_t atomic_and_64_nv(volatile uint64_t *target, uint64_t bits)
|
||||
{
|
||||
/* XXX - Implement me */
|
||||
return (*target &= bits);
|
||||
}
|
||||
#endif
|
||||
|
||||
|
||||
/*
|
||||
* If *arg1 == arg2, set *arg1 = arg3; return old value
|
||||
*/
|
||||
|
||||
#define ATOMIC_CAS(name, type) \
|
||||
type atomic_cas_##name(volatile type *target, type arg1, type arg2) \
|
||||
{ \
|
||||
type lock, old = *target; \
|
||||
\
|
||||
__asm__ __volatile__( \
|
||||
"1: lwarx %[lock],0,%[target]\n" \
|
||||
" cmpw %[lock],%[arg1]\n" \
|
||||
" bne- 2f\n" \
|
||||
" mr %[lock],%[arg2]\n" \
|
||||
" stwcx. %[lock],0,%[target]\n" \
|
||||
" bne- 1b\n" \
|
||||
"2:" \
|
||||
: [lock] "=&r" (lock) \
|
||||
: [target] "r" (target), [arg1] "r" (arg1), [arg2] "r" (arg2) \
|
||||
: "cc"); \
|
||||
\
|
||||
return old; \
|
||||
}
|
||||
|
||||
ATOMIC_CAS(8, uint8_t)
|
||||
ATOMIC_CAS(uchar, uchar_t)
|
||||
ATOMIC_CAS(16, uint16_t)
|
||||
ATOMIC_CAS(ushort, ushort_t)
|
||||
ATOMIC_CAS(32, uint32_t)
|
||||
ATOMIC_CAS(uint, uint_t)
|
||||
ATOMIC_CAS(ulong, ulong_t)
|
||||
|
||||
void *atomic_cas_ptr(volatile void *target, void *arg1, void *arg2)
|
||||
{
|
||||
/* XXX - Implement me */
|
||||
void *old = *(void **)target;
|
||||
if (old == arg1)
|
||||
*(void **)target = arg2;
|
||||
return (old);
|
||||
}
|
||||
|
||||
#if defined(_KERNEL) || defined(_INT64_TYPE)
|
||||
uint64_t atomic_cas_64(volatile uint64_t *target, uint64_t arg1, uint64_t arg2)
|
||||
{
|
||||
/* XXX - Implement me */
|
||||
uint64_t old = *target;
|
||||
if (old == arg1)
|
||||
*target = arg2;
|
||||
return (old);
|
||||
}
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Swap target and return old value
|
||||
*/
|
||||
|
||||
#define ATOMIC_SWAP(name, type) \
|
||||
type atomic_swap_##name(volatile type *target, type bits) \
|
||||
{ \
|
||||
type lock, old = *target; \
|
||||
\
|
||||
__asm__ __volatile__( \
|
||||
"1: lwarx %[lock],0,%[target]\n" \
|
||||
" mr %[lock],%[bits]\n" \
|
||||
" stwcx. %[lock],0,%[target]\n" \
|
||||
" bne- 1b" \
|
||||
: [lock] "=&r" (lock) \
|
||||
: [target] "r" (target), [bits] "r" (bits) \
|
||||
: "cc"); \
|
||||
\
|
||||
return old; \
|
||||
}
|
||||
|
||||
ATOMIC_SWAP(8, uint8_t)
|
||||
ATOMIC_SWAP(uchar, uchar_t)
|
||||
ATOMIC_SWAP(16, uint16_t)
|
||||
ATOMIC_SWAP(ushort, ushort_t)
|
||||
ATOMIC_SWAP(32, uint32_t)
|
||||
ATOMIC_SWAP(uint, uint_t)
|
||||
ATOMIC_SWAP(ulong, ulong_t)
|
||||
|
||||
void *atomic_swap_ptr(volatile void *target, void *bits)
|
||||
{
|
||||
/* XXX - Implement me */
|
||||
void *old = *(void **)target;
|
||||
*(void **)target = bits;
|
||||
return (old);
|
||||
}
|
||||
|
||||
#if defined(_KERNEL) || defined(_INT64_TYPE)
|
||||
uint64_t atomic_swap_64(volatile uint64_t *target, uint64_t bits)
|
||||
{
|
||||
/* XXX - Implement me */
|
||||
uint64_t old = *target;
|
||||
*target = bits;
|
||||
return (old);
|
||||
}
|
||||
#endif
|
||||
|
||||
int atomic_set_long_excl(volatile ulong_t *target, uint_t value)
|
||||
{
|
||||
/* XXX - Implement me */
|
||||
ulong_t bit = (1UL << value);
|
||||
if ((*target & bit) != 0)
|
||||
return (-1);
|
||||
*target |= bit;
|
||||
return (0);
|
||||
}
|
||||
|
||||
int atomic_clear_long_excl(volatile ulong_t *target, uint_t value)
|
||||
{
|
||||
/* XXX - Implement me */
|
||||
ulong_t bit = (1UL << value);
|
||||
if ((*target & bit) != 0)
|
||||
return (-1);
|
||||
*target &= ~bit;
|
||||
return (0);
|
||||
}
|
||||
|
||||
void membar_enter(void)
|
||||
{
|
||||
/* XXX - Implement me */
|
||||
}
|
||||
|
||||
void membar_exit(void)
|
||||
{
|
||||
/* XXX - Implement me */
|
||||
}
|
||||
|
||||
void membar_producer(void)
|
||||
{
|
||||
/* XXX - Implement me */
|
||||
}
|
||||
|
||||
void membar_consumer(void)
|
||||
{
|
||||
/* XXX - Implement me */
|
||||
}
|
||||
|
||||
/* Legacy kernel interfaces; they will go away (eventually). */
|
||||
|
||||
uint8_t cas8(uint8_t *target, uint8_t arg1, uint8_t arg2)
|
||||
{
|
||||
return atomic_cas_8(target, arg1, arg2);
|
||||
}
|
||||
|
||||
uint32_t cas32(uint32_t *target, uint32_t arg1, uint32_t arg2)
|
||||
{
|
||||
return atomic_cas_32(target, arg1, arg2);
|
||||
}
|
||||
|
||||
uint64_t cas64(uint64_t *target, uint64_t arg1, uint64_t arg2)
|
||||
{
|
||||
return atomic_cas_64(target, arg1, arg2);
|
||||
}
|
||||
|
||||
ulong_t caslong(ulong_t *target, ulong_t arg1, ulong_t arg2)
|
||||
{
|
||||
return atomic_cas_ulong(target, arg1, arg2);
|
||||
}
|
||||
|
||||
void *casptr(void *target, void *arg1, void *arg2)
|
||||
{
|
||||
return atomic_cas_ptr(target, arg1, arg2);
|
||||
}
|
||||
|
||||
void atomic_and_long(ulong_t *target, ulong_t bits)
|
||||
{
|
||||
return atomic_and_ulong(target, bits);
|
||||
}
|
||||
|
||||
void atomic_or_long(ulong_t *target, ulong_t bits)
|
||||
{
|
||||
return atomic_or_ulong(target, bits);
|
||||
}
|
||||
Loading…
Reference in New Issue