110 lines
3.4 KiB
C
110 lines
3.4 KiB
C
/* $NetBSD: cpu.h,v 1.2 1998/06/24 14:20:50 tsubai Exp $ */
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/*
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* Copyright (C) 1995-1997 Wolfgang Solfrank.
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* Copyright (C) 1995-1997 TooLs GmbH.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by TooLs GmbH.
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* 4. The name of TooLs GmbH may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _MACHINE_CPU_H_
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#define _MACHINE_CPU_H_
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#include <machine/frame.h>
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#include <machine/psl.h>
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#include <machine/intr.h>
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#define CLKF_USERMODE(frame) (((frame)->srr1 & PSL_PR) != 0)
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#define CLKF_BASEPRI(frame) ((frame)->pri == 0)
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#define CLKF_PC(frame) ((frame)->srr0)
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#define CLKF_INTR(frame) ((frame)->depth > 0)
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#define cpu_swapout(p)
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#define cpu_wait(p)
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extern void delay __P((unsigned));
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#define DELAY(n) delay(n)
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extern __volatile int want_resched;
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extern __volatile int astpending;
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#define need_resched() (want_resched = 1, astpending = 1)
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#define need_proftick(p) ((p)->p_flag |= P_OWEUPC, astpending = 1)
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#define signotify(p) (astpending = 1)
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#define CACHELINESIZE 32 /* For now XXX */
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extern __inline void syncicache __P((void *, int));
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extern __inline void flushcache __P((void *, int));
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extern __inline void
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syncicache(from, len)
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void *from;
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int len;
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{
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int l = len;
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char *p = from;
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do {
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__asm__ __volatile ("dcbst 0,%0" :: "r"(p));
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p += CACHELINESIZE;
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} while ((l -= CACHELINESIZE) > 0);
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__asm__ __volatile ("sync");
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do {
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__asm__ __volatile ("icbi 0,%0" :: "r"(from));
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(char *)from += CACHELINESIZE;
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} while ((len -= CACHELINESIZE) > 0);
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__asm__ __volatile ("isync");
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}
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extern __inline void
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flushcache(from, len)
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void *from;
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int len;
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{
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int l = len;
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char *p = from;
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do {
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__asm__ __volatile ("dcbf 0,%0" :: "r"(p));
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p += CACHELINESIZE;
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} while ((l -= CACHELINESIZE) > 0);
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__asm__ __volatile ("sync");
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do {
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__asm__ __volatile ("icbi 0,%0" :: "r"(from));
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(char *)from += CACHELINESIZE;
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} while ((len -= CACHELINESIZE) > 0);
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__asm__ __volatile ("isync");
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}
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extern char *bootpath;
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#ifdef _KERNEL
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void configure __P((void));
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#endif /* _KERNEL */
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#endif /* _MACHINE_CPU_H_ */
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