/* $NetBSD: cpu.h,v 1.22 2010/12/22 02:42:29 matt Exp $ */ /* * Copyright (c) 1982, 1990 The Regents of the University of California. * All rights reserved. * * This code is derived from software contributed to Berkeley by * the Systems Programming Group of the University of Utah Computer * Science Department. * * 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. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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. * * from: Utah Hdr: cpu.h 1.16 91/03/25 * from: @(#)cpu.h 7.7 (Berkeley) 6/27/91 * cpu.h,v 1.2 1993/05/22 07:58:17 cgd Exp */ /* * Copyright (c) 1994 Gordon W. Ross * Copyright (c) 1993 Adam Glass * Copyright (c) 1988 University of Utah. * * This code is derived from software contributed to Berkeley by * the Systems Programming Group of the University of Utah Computer * Science Department. * * 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 the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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. * * from: Utah Hdr: cpu.h 1.16 91/03/25 * from: @(#)cpu.h 7.7 (Berkeley) 6/27/91 * cpu.h,v 1.2 1993/05/22 07:58:17 cgd Exp */ #ifndef _CPU_H_ #define _CPU_H_ #if defined(_KERNEL_OPT) #include "opt_lockdebug.h" #endif #include #ifdef _KERNEL /* * External definitions unique to sun68k cpu support. * These are the "public" declarations - those needed in * machine-independent source code. The "private" ones * are in machdep.h (used only inside sys/arch/sun{2,3,68k}). * * Note that the name of this file is NOT meant to imply * that it has anything to do with Motorola CPU stuff. * The name "cpu" is historical, and used in the common * code to identify machine-dependent functions, etc. */ /* * Arguments to hardclock and gatherstats encapsulate the previous * machine state in an opaque clockframe. On the sun68k, we use * what the locore.s glue puts on the stack before calling C-code. */ struct clockframe { u_int cf_regs[4]; /* d0,d1,a0,a1 */ u_short cf_sr; /* sr at time of interrupt */ u_long cf_pc; /* pc at time of interrupt */ u_short cf_vo; /* vector offset (4-word frame) */ } __attribute__((packed)); #define CLKF_USERMODE(framep) (((framep)->cf_sr & PSL_S) == 0) #define CLKF_PC(framep) ((framep)->cf_pc) #if 0 /* We would like to do it this way... */ #define CLKF_INTR(framep) (((framep)->cf_sr & PSL_M) == 0) #else /* but until we start using PSL_M, we have to do this instead */ #include #define CLKF_INTR(framep) (idepth > 1) /* XXX */ #endif extern int astpending; /* need to trap before returning to user mode */ #define aston() (astpending = 1) /* * Preempt the current process if in interrupt from user mode, * or after the current trap/syscall if in system mode. */ #define cpu_need_resched(ci, flags) \ do { ci->ci_want_resched = 1; aston(); } while (/* CONSTCOND */0) /* * Give a profiling tick to the current process when the user profiling * buffer pages are invalid. On the sun68k, request an ast to send us * through trap, marking the proc as needing a profiling tick. */ #define cpu_need_proftick(l) ((l)->l_pflag |= LP_OWEUPC, aston()) /* * Notify the current process (p) that it has a signal pending, * process as soon as possible. */ #define cpu_signotify(l) aston() /* * For some reason the sparc has this prototype in its machine/cpu.h, * so for now we do the same. */ void fb_unblank(void); /* * more stuff here for lack of a better place. */ #ifndef _SUN3X_ #define M68K_VAC #endif #endif /* _KERNEL */ #include #endif /* _CPU_H_ */