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/* $OpenBSD: cpu.h,v 1.6 1997/01/24 19:57:10 niklas Exp $ */
/* $NetBSD: cpu.h,v 1.14 1996/12/07 01:54:50 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 <machine/frame.h>
/*
* 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)
u_int64_t astpending; /* need to trap before returning to user mode */
u_int64_t want_resched; /* resched() was called */
/*
* 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_ */
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