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/*
* 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 2004 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#if defined(__lint)
#include <kmdb/kmdb_asmutil.h>
#endif
#include <sys/asm_linkage.h>
#if defined(__lint)
/*ARGSUSED*/
uintptr_t
cas(uintptr_t *rs1, uintptr_t rs2, uintptr_t rd)
{
return (0);
}
#else
ENTRY_NP(cas)
movq %rsi, %rax
lock
cmpxchgq %rdx, (%rdi)
ret
SET_SIZE(cas)
#endif
#if defined(__lint)
void
membar_producer(void)
{
}
#else
ENTRY(membar_producer)
sfence
ret
SET_SIZE(membar_producer)
#endif
#if defined(__lint)
/*ARGSUSED*/
void
rdmsr(uint32_t addr, uint64_t *retp)
{
}
#else
ENTRY(rdmsr)
movl %edi, %ecx
rdmsr
movl %eax, (%rsi)
movl %edx, 4(%rsi)
ret
SET_SIZE(rdmsr)
#endif
#if defined(__lint)
/*ARGSUSED*/
void
wrmsr(uint32_t addr, uint64_t *valp)
{
}
#else
ENTRY(wrmsr)
movl (%rsi), %eax
movl 4(%rsi), %edx
movl %edi, %ecx
wrmsr
ret
SET_SIZE(wrmsr)
#endif
#if defined(__lint)
uintptr_t
get_fp(void)
{
return (0);
}
#else
ENTRY(get_fp)
movq %rbp, %rax
ret
SET_SIZE(get_fp)
#endif
#if defined(__lint)
/*ARGSUSED*/
void
kmt_in(void *buf, size_t nbytes, uintptr_t addr)
{
}
/*ARGSUSED*/
void
kmt_out(void *buf, size_t nbytes, uintptr_t addr)
{
}
#else
ENTRY_NP(kmt_in)
cmpq $4, %rsi
je 4f
cmpq $2, %rsi
je 2f
1: inb (%dx)
movb %al, 0(%rdi)
ret
2: inw (%dx)
movw %ax, 0(%rdi)
ret
4: inl (%dx)
movl %eax, 0(%rdi)
ret
SET_SIZE(kmt_in)
ENTRY_NP(kmt_out)
cmpq $4, %rsi
je 4f
cmpq $2, %rsi
je 2f
1: movb 0(%rdi), %al
outb (%dx)
ret
2: movw 0(%rdi), %ax
outw (%dx)
ret
4: movl 0(%rdi), %eax
outl (%dx)
ret
SET_SIZE(kmt_out)
#endif
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