mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-22 11:17:19 +00:00
216 lines
3.9 KiB
C
216 lines
3.9 KiB
C
/*-
|
|
* Copyright (c) 1998 Doug Rabson
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _MACHINE_CPUFUNC_H_
|
|
#define _MACHINE_CPUFUNC_H_
|
|
|
|
#ifdef _KERNEL
|
|
|
|
#include <sys/types.h>
|
|
|
|
#include <machine/psl.h>
|
|
#include <machine/spr.h>
|
|
|
|
struct thread;
|
|
|
|
#ifdef KDB
|
|
void breakpoint(void);
|
|
#else
|
|
static __inline void
|
|
breakpoint(void)
|
|
{
|
|
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
/* CPU register mangling inlines */
|
|
|
|
static __inline void
|
|
mtmsr(register_t value)
|
|
{
|
|
|
|
__asm __volatile ("mtmsr %0; isync" :: "r"(value));
|
|
}
|
|
|
|
#ifdef __powerpc64__
|
|
static __inline void
|
|
mtmsrd(register_t value)
|
|
{
|
|
|
|
__asm __volatile ("mtmsrd %0; isync" :: "r"(value));
|
|
}
|
|
#endif
|
|
|
|
static __inline register_t
|
|
mfmsr(void)
|
|
{
|
|
register_t value;
|
|
|
|
__asm __volatile ("mfmsr %0" : "=r"(value));
|
|
|
|
return (value);
|
|
}
|
|
|
|
#ifndef __powerpc64__
|
|
static __inline void
|
|
mtsrin(vm_offset_t va, register_t value)
|
|
{
|
|
|
|
__asm __volatile ("mtsrin %0,%1" :: "r"(value), "r"(va));
|
|
}
|
|
|
|
static __inline register_t
|
|
mfsrin(vm_offset_t va)
|
|
{
|
|
register_t value;
|
|
|
|
__asm __volatile ("mfsrin %0,%1" : "=r"(value) : "r"(va));
|
|
|
|
return (value);
|
|
}
|
|
#endif
|
|
|
|
static __inline register_t
|
|
mfctrl(void)
|
|
{
|
|
register_t value;
|
|
|
|
__asm __volatile ("mfspr %0,136" : "=r"(value));
|
|
|
|
return (value);
|
|
}
|
|
|
|
|
|
static __inline void
|
|
mtdec(register_t value)
|
|
{
|
|
|
|
__asm __volatile ("mtdec %0" :: "r"(value));
|
|
}
|
|
|
|
static __inline register_t
|
|
mfdec(void)
|
|
{
|
|
register_t value;
|
|
|
|
__asm __volatile ("mfdec %0" : "=r"(value));
|
|
|
|
return (value);
|
|
}
|
|
|
|
static __inline register_t
|
|
mfpvr(void)
|
|
{
|
|
register_t value;
|
|
|
|
__asm __volatile ("mfpvr %0" : "=r"(value));
|
|
|
|
return (value);
|
|
}
|
|
|
|
static __inline u_quad_t
|
|
mftb(void)
|
|
{
|
|
u_quad_t tb;
|
|
#ifdef __powerpc64__
|
|
__asm __volatile ("mftb %0" : "=r"(tb));
|
|
#else
|
|
uint32_t *tbup = (uint32_t *)&tb;
|
|
uint32_t *tblp = tbup + 1;
|
|
|
|
do {
|
|
*tbup = mfspr(TBR_TBU);
|
|
*tblp = mfspr(TBR_TBL);
|
|
} while (*tbup != mfspr(TBR_TBU));
|
|
#endif
|
|
|
|
return (tb);
|
|
}
|
|
|
|
static __inline void
|
|
mttb(u_quad_t time)
|
|
{
|
|
|
|
mtspr(TBR_TBWL, 0);
|
|
mtspr(TBR_TBWU, (uint32_t)(time >> 32));
|
|
mtspr(TBR_TBWL, (uint32_t)(time & 0xffffffff));
|
|
}
|
|
|
|
static __inline void
|
|
eieio(void)
|
|
{
|
|
|
|
__asm __volatile ("eieio" : : : "memory");
|
|
}
|
|
|
|
static __inline void
|
|
isync(void)
|
|
{
|
|
|
|
__asm __volatile ("isync" : : : "memory");
|
|
}
|
|
|
|
static __inline void
|
|
powerpc_sync(void)
|
|
{
|
|
|
|
__asm __volatile ("sync" : : : "memory");
|
|
}
|
|
|
|
static __inline register_t
|
|
intr_disable(void)
|
|
{
|
|
register_t msr;
|
|
|
|
msr = mfmsr();
|
|
mtmsr(msr & ~PSL_EE);
|
|
return (msr);
|
|
}
|
|
|
|
static __inline void
|
|
intr_restore(register_t msr)
|
|
{
|
|
|
|
mtmsr(msr);
|
|
}
|
|
|
|
static __inline struct pcpu *
|
|
powerpc_get_pcpup(void)
|
|
{
|
|
struct pcpu *ret;
|
|
|
|
__asm __volatile("mfsprg %0, 0" : "=r"(ret));
|
|
|
|
return (ret);
|
|
}
|
|
|
|
#endif /* _KERNEL */
|
|
|
|
#endif /* !_MACHINE_CPUFUNC_H_ */
|