NetBSD/sys/arch/sh3/include/cpu.h

236 lines
6.8 KiB
C

/* $NetBSD: cpu.h,v 1.12 2001/05/30 12:28:50 mrg Exp $ */
/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* William Jolitz.
*
* 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.
*
* @(#)cpu.h 5.4 (Berkeley) 5/9/91
*/
/*
* SH3 Version
*
* T.Horiuchi Brains Corp. 5/22/98
*/
#ifndef _SH3_CPU_H_
#define _SH3_CPU_H_
#if defined(_KERNEL_OPT)
#include "opt_lockdebug.h"
#endif
/*
* Definitions unique to sh3 cpu support.
*/
#include <machine/psl.h>
#include <machine/frame.h>
#include <machine/segments.h>
#include <sys/sched.h>
struct cpu_info {
struct schedstate_percpu ci_schedstate; /* scheduler state */
#if defined(DIAGNOSTIC) || defined(LOCKDEBUG)
u_long ci_spin_locks; /* # of spin locks held */
u_long ci_simple_locks; /* # of simple locks held */
#endif
};
#ifdef _KERNEL
extern struct cpu_info cpu_info_store;
#define curcpu() (&cpu_info_store)
#endif
/*
* definitions of cpu-dependent requirements
* referenced in generic code
*/
#define cpu_swapin(p) /* nothing */
#define cpu_wait(p) /* nothing */
#define cpu_number() 0
/*
* Arguments to hardclock, softclock and statclock
* encapsulate the previous machine state in an opaque
* clockframe; for now, use generic intrframe.
*
* XXX intrframe has a lot of gunk we don't need.
*/
#define clockframe intrframe
#if 1
#define CLKF_USERMODE(frame) (!KERNELMODE((frame)->if_r15))
#else
#define CLKF_USERMODE(frame) USERMODE((frame)->if_spc, (frame)->if_ssr)
#endif
#if 0
#define CLKF_BASEPRI(frame) ((frame)->if_pri == 0)
#else
/* XXX we should fix this */
#define CLKF_BASEPRI(frame) (0)
#endif
#define CLKF_PC(frame) ((frame)->if_spc)
#define CLKF_INTR(frame) (0) /* XXX should have an interrupt stack */
/*
* Preempt the current process if in interrupt from user mode,
* or after the current trap/syscall if in system mode.
*/
int want_resched; /* resched() was called */
#define need_resched(ci) (want_resched = 1, setsoftast())
/*
* Give a profiling tick to the current process when the user profiling
* buffer pages are invalid. On the i386, 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, setsoftast())
/*
* Notify the current process (p) that it has a signal pending,
* process as soon as possible.
*/
#define signotify(p) setsoftast()
/*
* We need a machine-independent name for this.
*/
#define DELAY(x) delay(x)
void delay __P((int));
/*
* Logical address space of SH3 CPU.
*/
#define SH3_P0SEG_BASE 0x00000000 /* TLB mapped, also U0SEG */
#define SH3_P0SEG_END 0x7fffffff
#define SH3_P1SEG_BASE 0x80000000 /* pa == va */
#define SH3_P1SEG_END 0x9fffffff
#define SH3_P2SEG_BASE 0xa0000000 /* pa == va, non-cacheable */
#define SH3_P2SEG_END 0xbfffffff
#define SH3_P3SEG_BASE 0xc0000000 /* TLB mapped, supervisor mode */
#define SH3_P3SEG_END 0xdfffffff
#define SH3_P4SEG_BASE 0xe0000000 /* peripheral space */
#define SH3_P4SEG_END 0xffffffff
#define SH3_PHYS_MASK 0x1fffffff
#define SH3_P1234SEG_SIZE 0x20000000
#define SH3_P1SEG_TO_PHYS(x) ((unsigned)(x) & SH3_PHYS_MASK)
#define SH3_P2SEG_TO_PHYS(x) ((unsigned)(x) & SH3_PHYS_MASK)
#define SH3_PHYS_TO_P1SEG(x) ((unsigned)(x) | SH3_P1SEG_BASE)
#define SH3_PHYS_TO_P2SEG(x) ((unsigned)(x) | SH3_P2SEG_BASE)
#define SH3_P1SEG_TO_P2SEG(x) ((unsigned)(x) | SH3_P1234SEG_SIZE)
/*
* pull in #defines for kinds of processors
*/
#include <machine/cputypes.h>
#ifdef _KERNEL
extern int cpu;
extern int cpu_class;
extern struct cpu_nocpuid_nameclass sh3_nocpuid_cpus[];
extern struct cpu_cpuid_nameclass sh3_cpuid_cpus[];
/* autoconf.c */
void configure __P((void));
/* sh3_machdep.c */
void sh3_startup __P((void));
/* machdep.c */
void delay __P((int));
void dumpconf __P((void));
void cpu_reset __P((void));
/* locore.s */
struct region_descriptor;
void lgdt __P((struct region_descriptor *));
void fillw __P((short, void *, size_t));
void
bcopyb __P((caddr_t from, caddr_t to, size_t len));
void
bcopyw __P((caddr_t from, caddr_t to, size_t len));
void
setPageDirReg __P((int pgdir));
struct pcb;
void savectx __P((struct pcb *));
void switch_exit __P((struct proc *));
void proc_trampoline __P((void));
/* clock.c */
void startrtclock __P((void));
/* npx.c */
void npxdrop __P((void));
void npxsave __P((void));
/* vm_machdep.c */
int kvtop __P((caddr_t));
#ifdef MATH_EMULATE
/* math_emulate.c */
int math_emulate __P((struct trapframe *));
#endif
#endif /* _KERNEL */
/*
* CTL_MACHDEP definitions.
*/
#define CPU_CONSDEV 1 /* dev_t: console terminal device */
#define CPU_NKPDE 2 /* int: number of kernel PDEs */
#define CPU_BOOTED_KERNEL 3 /* string: booted kernel name */
#define CPU_SETPRIVPROC 4 /* set current proc to piviledged proc
*/
#define CPU_DEBUGMODE 5 /* set debug mode */
#define CPU_LOADANDRESET 6 /* load kernel image and reset */
#define CPU_MAXID 7 /* number of valid machdep ids */
#define CTL_MACHDEP_NAMES { \
{ 0, 0 }, \
{ "console_device", CTLTYPE_STRUCT }, \
{ "nkpde", CTLTYPE_INT }, \
{ "booted_kernel", CTLTYPE_STRING }, \
{ "set_priv_proc", CTLTYPE_INT }, \
{ "debug_mode", CTLTYPE_INT }, \
{ "load_and_reset", CTLTYPE_INT }, \
}
#endif /* !_SH3_CPU_H_ */