92 lines
3.1 KiB
C
92 lines
3.1 KiB
C
|
/* $NetBSD: cpu.h,v 1.1 1996/09/30 16:34:21 ws Exp $ */
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Copyright (C) 1995, 1996 Wolfgang Solfrank.
|
||
|
|
* Copyright (C) 1995, 1996 TooLs GmbH.
|
||
|
|
* 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.
|
||
|
|
* 3. All advertising materials mentioning features or use of this software
|
||
|
|
* must display the following acknowledgement:
|
||
|
|
* This product includes software developed by TooLs GmbH.
|
||
|
|
* 4. The name of TooLs GmbH may not be used to endorse or promote products
|
||
|
|
* derived from this software without specific prior written permission.
|
||
|
|
*
|
||
|
|
* THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``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 TOOLS GMBH 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.
|
||
|
|
*/
|
||
|
|
#ifndef _MACHINE_CPU_H_
|
||
|
|
#define _MACHINE_CPU_H_
|
||
|
|
|
||
|
|
#include <machine/frame.h>
|
||
|
|
|
||
|
|
struct machvec {
|
||
|
|
void (*splx) __P((int));
|
||
|
|
void (*irq_establish) __P((int, int, void (*)(void *), void *));
|
||
|
|
};
|
||
|
|
extern struct machvec machine_interface;
|
||
|
|
|
||
|
|
#include <machine/psl.h>
|
||
|
|
|
||
|
|
#define irq_establish(irq, level, handler, arg) \
|
||
|
|
((*machine_interface.irq_establish)((irq), (level), (handler), (arg)))
|
||
|
|
|
||
|
|
#define CLKF_USERMODE(frame) (((frame)->srr1 & PSL_PR) != 0)
|
||
|
|
#define CLKF_BASEPRI(frame) ((frame)->pri == 0)
|
||
|
|
#define CLKF_PC(frame) ((frame)->srr0)
|
||
|
|
#define CLKF_INTR(frame) ((frame)->depth != 0)
|
||
|
|
|
||
|
|
#define cpu_swapout(p)
|
||
|
|
#define cpu_wait(p)
|
||
|
|
|
||
|
|
extern void delay __P((unsigned));
|
||
|
|
#define DELAY(n) delay(n)
|
||
|
|
|
||
|
|
extern volatile int want_resched;
|
||
|
|
extern volatile int astpending;
|
||
|
|
|
||
|
|
#define need_resched() (want_resched = 1, astpending = 1)
|
||
|
|
#define need_proftick(p) ((p)->p_flag |= P_OWEUPC, astpending = 1)
|
||
|
|
#define signotify(p) (astpending = 1)
|
||
|
|
|
||
|
|
#define CACHELINESIZE 32 /* For now XXX */
|
||
|
|
|
||
|
|
extern __inline void
|
||
|
|
syncicache(from, len)
|
||
|
|
void *from;
|
||
|
|
int len;
|
||
|
|
{
|
||
|
|
int l = len;
|
||
|
|
void *p = from;
|
||
|
|
|
||
|
|
do {
|
||
|
|
asm volatile ("dcbst 0,%0" :: "r"(p));
|
||
|
|
p += CACHELINESIZE;
|
||
|
|
} while ((l -= CACHELINESIZE) > 0);
|
||
|
|
asm volatile ("sync");
|
||
|
|
do {
|
||
|
|
asm volatile ("icbi 0,%0" :: "r"(from));
|
||
|
|
from += CACHELINESIZE;
|
||
|
|
} while ((len -= CACHELINESIZE) > 0);
|
||
|
|
asm volatile ("isync");
|
||
|
|
}
|
||
|
|
|
||
|
|
extern char *bootpath;
|
||
|
|
|
||
|
|
#endif /* _MACHINE_CPU_H_ */
|