/* $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 #include #include #include 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 #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_ */