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author | pjd <pjd@FreeBSD.org> | 2007-04-06 01:09:06 +0000 |
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committer | pjd <pjd@FreeBSD.org> | 2007-04-06 01:09:06 +0000 |
commit | 3b005d330261f33318ca1ee3fef1940237fd788b (patch) | |
tree | 3061c8734d9ce560165e672836837a0f411a83c9 /sys/cddl/contrib/opensolaris/uts/common/arch/amd64/atomic.S | |
parent | 3be454b8211f48e634e6587f53807d3b5013e973 (diff) | |
download | FreeBSD-src-3b005d330261f33318ca1ee3fef1940237fd788b.zip FreeBSD-src-3b005d330261f33318ca1ee3fef1940237fd788b.tar.gz |
Please welcome ZFS - The last word in file systems.
ZFS file system was ported from OpenSolaris operating system. The code in under
CDDL license.
I'd like to thank all SUN developers that created this great piece of software.
Supported by: Wheel LTD (http://www.wheel.pl/)
Supported by: The FreeBSD Foundation (http://www.freebsdfoundation.org/)
Supported by: Sentex (http://www.sentex.net/)
Diffstat (limited to 'sys/cddl/contrib/opensolaris/uts/common/arch/amd64/atomic.S')
-rw-r--r-- | sys/cddl/contrib/opensolaris/uts/common/arch/amd64/atomic.S | 564 |
1 files changed, 564 insertions, 0 deletions
diff --git a/sys/cddl/contrib/opensolaris/uts/common/arch/amd64/atomic.S b/sys/cddl/contrib/opensolaris/uts/common/arch/amd64/atomic.S new file mode 100644 index 0000000..1fa3c05 --- /dev/null +++ b/sys/cddl/contrib/opensolaris/uts/common/arch/amd64/atomic.S @@ -0,0 +1,564 @@ +/* + * 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 2005 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + + .ident "%Z%%M% %I% %E% SMI" + + .file "%M%" + +#define _ASM +#include <sys/asm_linkage.h> + +#if defined(_KERNEL) + /* + * Legacy kernel interfaces; they will go away (eventually). + */ + ANSI_PRAGMA_WEAK2(cas8,atomic_cas_8,function) + ANSI_PRAGMA_WEAK2(cas32,atomic_cas_32,function) + ANSI_PRAGMA_WEAK2(cas64,atomic_cas_64,function) + ANSI_PRAGMA_WEAK2(caslong,atomic_cas_ulong,function) + ANSI_PRAGMA_WEAK2(casptr,atomic_cas_ptr,function) + ANSI_PRAGMA_WEAK2(atomic_and_long,atomic_and_ulong,function) + ANSI_PRAGMA_WEAK2(atomic_or_long,atomic_or_ulong,function) +#endif + + ENTRY(atomic_inc_8) + ALTENTRY(atomic_inc_uchar) + lock + incb (%rdi) + ret + SET_SIZE(atomic_inc_uchar) + SET_SIZE(atomic_inc_8) + + ENTRY(atomic_inc_16) + ALTENTRY(atomic_inc_ushort) + lock + incw (%rdi) + ret + SET_SIZE(atomic_inc_ushort) + SET_SIZE(atomic_inc_16) + + ENTRY(atomic_inc_32) + ALTENTRY(atomic_inc_uint) + lock + incl (%rdi) + ret + SET_SIZE(atomic_inc_uint) + SET_SIZE(atomic_inc_32) + + ENTRY(atomic_inc_64) + ALTENTRY(atomic_inc_ulong) + lock + incq (%rdi) + ret + SET_SIZE(atomic_inc_ulong) + SET_SIZE(atomic_inc_64) + + ENTRY(atomic_inc_8_nv) + ALTENTRY(atomic_inc_uchar_nv) + movb (%rdi), %al +1: + leaq 1(%rax), %rcx + lock + cmpxchgb %cl, (%rdi) + jne 1b + movzbl %cl, %eax + ret + SET_SIZE(atomic_inc_uchar_nv) + SET_SIZE(atomic_inc_8_nv) + + ENTRY(atomic_inc_16_nv) + ALTENTRY(atomic_inc_ushort_nv) + movw (%rdi), %ax +1: + leaq 1(%rax), %rcx + lock + cmpxchgw %cx, (%rdi) + jne 1b + movzwl %cx, %eax + ret + SET_SIZE(atomic_inc_ushort_nv) + SET_SIZE(atomic_inc_16_nv) + + ENTRY(atomic_inc_32_nv) + ALTENTRY(atomic_inc_uint_nv) + movl (%rdi), %eax +1: + leaq 1(%rax), %rcx + lock + cmpxchgl %ecx, (%rdi) + jne 1b + movl %ecx, %eax + ret + SET_SIZE(atomic_inc_uint_nv) + SET_SIZE(atomic_inc_32_nv) + + ENTRY(atomic_inc_64_nv) + ALTENTRY(atomic_inc_ulong_nv) + movq (%rdi), %rax +1: + leaq 1(%rax), %rcx + lock + cmpxchgq %rcx, (%rdi) + jne 1b + movq %rcx, %rax + ret + SET_SIZE(atomic_inc_ulong_nv) + SET_SIZE(atomic_inc_64_nv) + + ENTRY(atomic_dec_8) + ALTENTRY(atomic_dec_uchar) + lock + decb (%rdi) + ret + SET_SIZE(atomic_dec_uchar) + SET_SIZE(atomic_dec_8) + + ENTRY(atomic_dec_16) + ALTENTRY(atomic_dec_ushort) + lock + decw (%rdi) + ret + SET_SIZE(atomic_dec_ushort) + SET_SIZE(atomic_dec_16) + + ENTRY(atomic_dec_32) + ALTENTRY(atomic_dec_uint) + lock + decl (%rdi) + ret + SET_SIZE(atomic_dec_uint) + SET_SIZE(atomic_dec_32) + + ENTRY(atomic_dec_64) + ALTENTRY(atomic_dec_ulong) + lock + decq (%rdi) + ret + SET_SIZE(atomic_dec_ulong) + SET_SIZE(atomic_dec_64) + + ENTRY(atomic_dec_8_nv) + ALTENTRY(atomic_dec_uchar_nv) + movb (%rdi), %al +1: + leaq -1(%rax), %rcx + lock + cmpxchgb %cl, (%rdi) + jne 1b + movzbl %cl, %eax + ret + SET_SIZE(atomic_dec_uchar_nv) + SET_SIZE(atomic_dec_8_nv) + + ENTRY(atomic_dec_16_nv) + ALTENTRY(atomic_dec_ushort_nv) + movw (%rdi), %ax +1: + leaq -1(%rax), %rcx + lock + cmpxchgw %cx, (%rdi) + jne 1b + movzwl %cx, %eax + ret + SET_SIZE(atomic_dec_ushort_nv) + SET_SIZE(atomic_dec_16_nv) + + ENTRY(atomic_dec_32_nv) + ALTENTRY(atomic_dec_uint_nv) + movl (%rdi), %eax +1: + leaq -1(%rax), %rcx + lock + cmpxchgl %ecx, (%rdi) + jne 1b + movl %ecx, %eax + ret + SET_SIZE(atomic_dec_uint_nv) + SET_SIZE(atomic_dec_32_nv) + + ENTRY(atomic_dec_64_nv) + ALTENTRY(atomic_dec_ulong_nv) + movq (%rdi), %rax +1: + leaq -1(%rax), %rcx + lock + cmpxchgq %rcx, (%rdi) + jne 1b + movq %rcx, %rax + ret + SET_SIZE(atomic_dec_ulong_nv) + SET_SIZE(atomic_dec_64_nv) + + ENTRY(atomic_or_8) + ALTENTRY(atomic_or_uchar) + lock + orb %sil, (%rdi) + ret + SET_SIZE(atomic_or_uchar) + SET_SIZE(atomic_or_8) + + ENTRY(atomic_or_16) + ALTENTRY(atomic_or_ushort) + lock + orw %si, (%rdi) + ret + SET_SIZE(atomic_or_ushort) + SET_SIZE(atomic_or_16) + + ENTRY(atomic_or_32) + ALTENTRY(atomic_or_uint) + lock + orl %esi, (%rdi) + ret + SET_SIZE(atomic_or_uint) + SET_SIZE(atomic_or_32) + + ENTRY(atomic_or_64) + ALTENTRY(atomic_or_ulong) + lock + orq %rsi, (%rdi) + ret + SET_SIZE(atomic_or_ulong) + SET_SIZE(atomic_or_64) + + ENTRY(atomic_and_8) + ALTENTRY(atomic_and_uchar) + lock + andb %sil, (%rdi) + ret + SET_SIZE(atomic_and_uchar) + SET_SIZE(atomic_and_8) + + ENTRY(atomic_and_16) + ALTENTRY(atomic_and_ushort) + lock + andw %si, (%rdi) + ret + SET_SIZE(atomic_and_ushort) + SET_SIZE(atomic_and_16) + + ENTRY(atomic_and_32) + ALTENTRY(atomic_and_uint) + lock + andl %esi, (%rdi) + ret + SET_SIZE(atomic_and_uint) + SET_SIZE(atomic_and_32) + + ENTRY(atomic_and_64) + ALTENTRY(atomic_and_ulong) + lock + andq %rsi, (%rdi) + ret + SET_SIZE(atomic_and_ulong) + SET_SIZE(atomic_and_64) + + ENTRY(atomic_add_8_nv) + ALTENTRY(atomic_add_char_nv) + movb (%rdi), %al +1: + movb %sil, %cl + addb %al, %cl + lock + cmpxchgb %cl, (%rdi) + jne 1b + movzbl %cl, %eax + ret + SET_SIZE(atomic_add_char_nv) + SET_SIZE(atomic_add_8_nv) + + ENTRY(atomic_add_16_nv) + ALTENTRY(atomic_add_short_nv) + movw (%rdi), %ax +1: + movw %si, %cx + addw %ax, %cx + lock + cmpxchgw %cx, (%rdi) + jne 1b + movzwl %cx, %eax + ret + SET_SIZE(atomic_add_short_nv) + SET_SIZE(atomic_add_16_nv) + + ENTRY(atomic_add_32_nv) + ALTENTRY(atomic_add_int_nv) + movl (%rdi), %eax +1: + movl %esi, %ecx + addl %eax, %ecx + lock + cmpxchgl %ecx, (%rdi) + jne 1b + movl %ecx, %eax + ret + SET_SIZE(atomic_add_int_nv) + SET_SIZE(atomic_add_32_nv) + + ENTRY(atomic_add_64_nv) + ALTENTRY(atomic_add_ptr_nv) + ALTENTRY(atomic_add_long_nv) + movq (%rdi), %rax +1: + movq %rsi, %rcx + addq %rax, %rcx + lock + cmpxchgq %rcx, (%rdi) + jne 1b + movq %rcx, %rax + ret + SET_SIZE(atomic_add_long_nv) + SET_SIZE(atomic_add_ptr_nv) + SET_SIZE(atomic_add_64_nv) + + ENTRY(atomic_and_8_nv) + ALTENTRY(atomic_and_uchar_nv) + movb (%rdi), %al +1: + movb %sil, %cl + andb %al, %cl + lock + cmpxchgb %cl, (%rdi) + jne 1b + movzbl %cl, %eax + ret + SET_SIZE(atomic_and_uchar_nv) + SET_SIZE(atomic_and_8_nv) + + ENTRY(atomic_and_16_nv) + ALTENTRY(atomic_and_ushort_nv) + movw (%rdi), %ax +1: + movw %si, %cx + andw %ax, %cx + lock + cmpxchgw %cx, (%rdi) + jne 1b + movzwl %cx, %eax + ret + SET_SIZE(atomic_and_ushort_nv) + SET_SIZE(atomic_and_16_nv) + + ENTRY(atomic_and_32_nv) + ALTENTRY(atomic_and_uint_nv) + movl (%rdi), %eax +1: + movl %esi, %ecx + andl %eax, %ecx + lock + cmpxchgl %ecx, (%rdi) + jne 1b + movl %ecx, %eax + ret + SET_SIZE(atomic_and_uint_nv) + SET_SIZE(atomic_and_32_nv) + + ENTRY(atomic_and_64_nv) + ALTENTRY(atomic_and_ulong_nv) + movq (%rdi), %rax +1: + movq %rsi, %rcx + andq %rax, %rcx + lock + cmpxchgq %rcx, (%rdi) + jne 1b + movq %rcx, %rax + ret + SET_SIZE(atomic_and_ulong_nv) + SET_SIZE(atomic_and_64_nv) + + ENTRY(atomic_or_8_nv) + ALTENTRY(atomic_or_uchar_nv) + movb (%rdi), %al +1: + movb %sil, %cl + orb %al, %cl + lock + cmpxchgb %cl, (%rdi) + jne 1b + movzbl %cl, %eax + ret + SET_SIZE(atomic_and_uchar_nv) + SET_SIZE(atomic_and_8_nv) + + ENTRY(atomic_or_16_nv) + ALTENTRY(atomic_or_ushort_nv) + movw (%rdi), %ax +1: + movw %si, %cx + orw %ax, %cx + lock + cmpxchgw %cx, (%rdi) + jne 1b + movzwl %cx, %eax + ret + SET_SIZE(atomic_or_ushort_nv) + SET_SIZE(atomic_or_16_nv) + + ENTRY(atomic_or_32_nv) + ALTENTRY(atomic_or_uint_nv) + movl (%rdi), %eax +1: + movl %esi, %ecx + orl %eax, %ecx + lock + cmpxchgl %ecx, (%rdi) + jne 1b + movl %ecx, %eax + ret + SET_SIZE(atomic_or_uint_nv) + SET_SIZE(atomic_or_32_nv) + + ENTRY(atomic_or_64_nv) + ALTENTRY(atomic_or_ulong_nv) + movq (%rdi), %rax +1: + movq %rsi, %rcx + orq %rax, %rcx + lock + cmpxchgq %rcx, (%rdi) + jne 1b + movq %rcx, %rax + ret + SET_SIZE(atomic_or_ulong_nv) + SET_SIZE(atomic_or_64_nv) + + ENTRY(atomic_cas_8) + ALTENTRY(atomic_cas_uchar) + movzbl %sil, %eax + lock + cmpxchgb %dl, (%rdi) + ret + SET_SIZE(atomic_cas_uchar) + SET_SIZE(atomic_cas_8) + + ENTRY(atomic_cas_16) + ALTENTRY(atomic_cas_ushort) + movzwl %si, %eax + lock + cmpxchgw %dx, (%rdi) + ret + SET_SIZE(atomic_cas_ushort) + SET_SIZE(atomic_cas_16) + + ENTRY(atomic_cas_32) + ALTENTRY(atomic_cas_uint) + movl %esi, %eax + lock + cmpxchgl %edx, (%rdi) + ret + SET_SIZE(atomic_cas_uint) + SET_SIZE(atomic_cas_32) + + ENTRY(atomic_cas_64) + ALTENTRY(atomic_cas_ulong) + ALTENTRY(atomic_cas_ptr) + movq %rsi, %rax + lock + cmpxchgq %rdx, (%rdi) + ret + SET_SIZE(atomic_cas_ptr) + SET_SIZE(atomic_cas_ulong) + SET_SIZE(atomic_cas_64) + + ENTRY(atomic_swap_8) + ALTENTRY(atomic_swap_uchar) + movzbl %sil, %eax + lock + xchgb %al, (%rdi) + ret + SET_SIZE(atomic_swap_uchar) + SET_SIZE(atomic_swap_8) + + ENTRY(atomic_swap_16) + ALTENTRY(atomic_swap_ushort) + movzwl %si, %eax + lock + xchgw %ax, (%rdi) + ret + SET_SIZE(atomic_swap_ushort) + SET_SIZE(atomic_swap_16) + + ENTRY(atomic_swap_32) + ALTENTRY(atomic_swap_uint) + movl %esi, %eax + lock + xchgl %eax, (%rdi) + ret + SET_SIZE(atomic_swap_uint) + SET_SIZE(atomic_swap_32) + + ENTRY(atomic_swap_64) + ALTENTRY(atomic_swap_ulong) + ALTENTRY(atomic_swap_ptr) + movq %rsi, %rax + lock + xchgq %rax, (%rdi) + ret + SET_SIZE(atomic_swap_ptr) + SET_SIZE(atomic_swap_ulong) + SET_SIZE(atomic_swap_64) + + ENTRY(atomic_set_long_excl) + xorl %eax, %eax + lock + btsq %rsi, (%rdi) + jnc 1f + decl %eax +1: + ret + SET_SIZE(atomic_set_long_excl) + + ENTRY(atomic_clear_long_excl) + xorl %eax, %eax + lock + btrq %rsi, (%rdi) + jc 1f + decl %eax +1: + ret + SET_SIZE(atomic_clear_long_excl) + + ENTRY(membar_enter) + ALTENTRY(membar_exit) + mfence + ret + SET_SIZE(membar_exit) + SET_SIZE(membar_enter) + + ENTRY(membar_producer) + sfence + ret + SET_SIZE(membar_producer) + + ENTRY(membar_consumer) + lfence + ret + SET_SIZE(membar_consumer) + +#ifdef __ELF__ +.section .note.GNU-stack,"",%progbits +#endif |