/* $NetBSD: cpu.h,v 1.15 1997/01/24 06:38:37 cgd Exp $ */ /* * Copyright (c) 1988 University of Utah. * Copyright (c) 1982, 1990, 1993 * 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. 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 $Hdr: cpu.h 1.16 91/03/25$ * * @(#)cpu.h 8.4 (Berkeley) 1/5/94 */ #ifndef _ALPHA_CPU_H_ #define _ALPHA_CPU_H_ /* * Exported definitions unique to Alpha cpu support. */ #include /* * definitions of cpu-dependent requirements * referenced in generic code */ #define cpu_wait(p) /* nothing */ /* * Arguments to hardclock and gatherstats encapsulate the previous * machine state in an opaque clockframe. One the Alpha, we use * what we push on an interrupt (a trapframe). */ struct clockframe { struct trapframe cf_tf; }; #define CLKF_USERMODE(framep) \ (((framep)->cf_tf.tf_regs[FRAME_PS] & ALPHA_PSL_USERMODE) != 0) #define CLKF_BASEPRI(framep) \ (((framep)->cf_tf.tf_regs[FRAME_PS] & ALPHA_PSL_IPL_MASK) == 0) #define CLKF_PC(framep) ((framep)->cf_tf.tf_regs[FRAME_PC]) /* * XXX No way to accurately tell if we were in interrupt mode before taking * clock interrupt. */ #define CLKF_INTR(framep) (0) /* * Preempt the current process if in interrupt from user mode, * or after the current trap/syscall if in system mode. */ #define need_resched() { want_resched = 1; aston(); } /* * Give a profiling tick to the current process when the user profiling * buffer pages are invalid. On the hp300, request an ast to send us * through trap, marking the proc as needing a profiling tick. */ #define need_proftick(p) { (p)->p_flag |= P_OWEUPC; aston(); } /* * Notify the current process (p) that it has a signal pending, * process as soon as possible. */ #define signotify(p) aston() #define aston() (astpending = 1) #ifdef _KERNEL u_int64_t astpending; /* need to trap before returning to user mode */ u_int64_t want_resched; /* resched() was called */ #endif /* * CTL_MACHDEP definitions. */ #define CPU_CONSDEV 1 /* dev_t: console terminal device */ #define CPU_ROOT_DEVICE 2 /* string: root device name */ #define CPU_UNALIGNED_PRINT 3 /* int: print unaligned accesses */ #define CPU_UNALIGNED_FIX 4 /* int: fix unaligned accesses */ #define CPU_UNALIGNED_SIGBUS 5 /* int: SIGBUS unaligned accesses */ #define CPU_BOOTED_KERNEL 6 /* string: booted kernel name */ #define CPU_MAXID 7 /* 6 valid machdep IDs */ #define CTL_MACHDEP_NAMES { \ { 0, 0 }, \ { "console_device", CTLTYPE_STRUCT }, \ { "root_device", CTLTYPE_STRING }, \ { "unaligned_print", CTLTYPE_INT }, \ { "unaligned_fix", CTLTYPE_INT }, \ { "unaligned_sigbus", CTLTYPE_INT }, \ { "booted_kernel", CTLTYPE_STRING }, \ } #ifdef _KERNEL struct pcb; struct proc; struct reg; struct rpb; struct trapframe; extern int cold; extern struct proc *fpcurproc; extern struct rpb *hwrpb; void XentArith __P((u_int64_t, u_int64_t, u_int64_t)); /* MAGIC */ void XentIF __P((u_int64_t, u_int64_t, u_int64_t)); /* MAGIC */ void XentInt __P((u_int64_t, u_int64_t, u_int64_t)); /* MAGIC */ void XentMM __P((u_int64_t, u_int64_t, u_int64_t)); /* MAGIC */ void XentRestart __P((void)); /* MAGIC */ void XentSys __P((u_int64_t, u_int64_t, u_int64_t)); /* MAGIC */ void XentUna __P((u_int64_t, u_int64_t, u_int64_t)); /* MAGIC */ void alpha_init __P((u_long, u_long)); void ast __P((struct trapframe *)); int badaddr __P((void *, size_t)); void child_return __P((struct proc *p)); void configure __P((void)); u_int64_t console_restart __P((u_int64_t, u_int64_t, u_int64_t)); void do_sir __P((void)); void dumpconf __P((void)); void exception_return __P((void)); /* MAGIC */ void frametoreg __P((struct trapframe *, struct reg *)); long fswintrberr __P((void)); /* MAGIC */ void init_prom_interface __P((void)); void interrupt __P((unsigned long, unsigned long, unsigned long, struct trapframe *)); u_int64_t hwrpb_checksum __P((void)); void hwrpb_restart_setup __P((void)); void regdump __P((struct trapframe *)); void regtoframe __P((struct reg *, struct trapframe *)); void savectx __P((struct pcb *)); void set_clockintr __P((void)); void set_iointr __P((void (*)(void *, unsigned long))); void switch_exit __P((struct proc *)); /* MAGIC */ void switch_trampoline __P((void)); /* MAGIC */ void syscall __P((u_int64_t, struct trapframe *)); void trap __P((unsigned long, unsigned long, unsigned long, unsigned long, struct trapframe *)); #endif /* _KERNEL */ #endif /* _ALPHA_CPU_H_ */