1 /* $NetBSD: cpu.h,v 1.1 1996/09/30 16:34:21 ws Exp $ */ 2 3 /* 4 * Copyright (C) 1995, 1996 Wolfgang Solfrank. 5 * Copyright (C) 1995, 1996 TooLs GmbH. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by TooLs GmbH. 19 * 4. The name of TooLs GmbH may not be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 27 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 28 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 29 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 30 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 31 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 #ifndef _MACHINE_CPU_H_ 34 #define _MACHINE_CPU_H_ 35 36 #include <machine/frame.h> 37 38 struct machvec { 39 void (*splx) __P((int)); 40 void (*irq_establish) __P((int, int, void (*)(void *), void *)); 41 }; 42 extern struct machvec machine_interface; 43 44 #include <machine/psl.h> 45 46 #define irq_establish(irq, level, handler, arg) \ 47 ((*machine_interface.irq_establish)((irq), (level), (handler), (arg))) 48 49 #define CLKF_USERMODE(frame) (((frame)->srr1 & PSL_PR) != 0) 50 #define CLKF_BASEPRI(frame) ((frame)->pri == 0) 51 #define CLKF_PC(frame) ((frame)->srr0) 52 #define CLKF_INTR(frame) ((frame)->depth != 0) 53 54 #define cpu_swapout(p) 55 #define cpu_wait(p) 56 57 extern void delay __P((unsigned)); 58 #define DELAY(n) delay(n) 59 60 extern volatile int want_resched; 61 extern volatile int astpending; 62 63 #define need_resched() (want_resched = 1, astpending = 1) 64 #define need_proftick(p) ((p)->p_flag |= P_OWEUPC, astpending = 1) 65 #define signotify(p) (astpending = 1) 66 67 #define CACHELINESIZE 32 /* For now XXX */ 68 69 extern __inline void 70 syncicache(from, len) 71 void *from; 72 int len; 73 { 74 int l = len; 75 void *p = from; 76 77 do { 78 asm volatile ("dcbst 0,%0" :: "r"(p)); 79 p += CACHELINESIZE; 80 } while ((l -= CACHELINESIZE) > 0); 81 asm volatile ("sync"); 82 do { 83 asm volatile ("icbi 0,%0" :: "r"(from)); 84 from += CACHELINESIZE; 85 } while ((len -= CACHELINESIZE) > 0); 86 asm volatile ("isync"); 87 } 88 89 extern char *bootpath; 90 91 #endif /* _MACHINE_CPU_H_ */ 92