/* $NetBSD: cpu.h,v 1.75 2001/08/02 22:04:29 thorpej 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 */ #ifndef _I386_CPU_H_ #define _I386_CPU_H_ #if defined(_KERNEL_OPT) #include "opt_multiprocessor.h" #include "opt_lockdebug.h" #endif /* * Definitions unique to i386 cpu support. */ #include #include #include #include struct i386_cache_info { int cai_index; u_int32_t cai_desc; u_int cai_totalsize; u_int cai_associativity; u_int cai_linesize; }; #define CAI_ITLB 0 /* Instruction TLB (4K pages) */ #define CAI_ITLB2 1 /* Instruction TLB (2/4M pages) */ #define CAI_DTLB 2 /* Data TLB (4K pages) */ #define CAI_DTLB2 3 /* Data TLB (2/4M pages) */ #define CAI_ICACHE 4 /* Instruction cache */ #define CAI_DCACHE 5 /* Data cache */ #define CAI_L2CACHE 6 /* Level 2 cache */ #define CAI_COUNT 7 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 u_int ci_cflush_lsize; /* CFLUSH insn line size */ struct i386_cache_info ci_cinfo[CAI_COUNT]; }; #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_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 #define CLKF_USERMODE(frame) USERMODE((frame)->if_cs, (frame)->if_eflags) #define CLKF_BASEPRI(frame) ((frame)->if_ppl == 0) #define CLKF_PC(frame) ((frame)->if_eip) #define CLKF_INTR(frame) ((frame)->if_ppl & (1 << IPL_TAGINTR)) /* * This is used during profiling to integrate system time. It can safely * assume that the process is resident. */ #define PROC_PC(p) ((p)->p_md.md_regs->tf_eip) /* * 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) /* * pull in #defines for kinds of processors */ #include struct cpu_nocpuid_nameclass { int cpu_vendor; const char *cpu_vendorname; const char *cpu_name; int cpu_class; void (*cpu_setup) __P((void)); void (*cpu_cacheinfo) __P((struct cpu_info *)); }; struct cpu_cpuid_nameclass { const char *cpu_id; int cpu_vendor; const char *cpu_vendorname; struct cpu_cpuid_family { int cpu_class; const char *cpu_models[CPU_MAXMODEL+2]; void (*cpu_setup) __P((void)); void (*cpu_cacheinfo) __P((struct cpu_info *)); } cpu_family[CPU_MAXFAMILY - CPU_MINFAMILY + 1]; }; #ifdef _KERNEL extern int biosbasemem; extern int biosextmem; extern int cpu; extern int cpu_class; extern int cpu_feature; extern int cpu_id; extern char cpu_vendor[]; extern int cpuid_level; extern const struct cpu_nocpuid_nameclass i386_nocpuid_cpus[]; extern const struct cpu_cpuid_nameclass i386_cpuid_cpus[]; extern int i386_use_fxsave; extern int i386_has_sse; extern int i386_has_sse2; /* machdep.c */ void delay __P((int)); void dumpconf __P((void)); void cpu_reset __P((void)); void i386_proc0_tss_ldt_init __P((void)); void i386_bufinit __P((void)); /* locore.s */ struct region_descriptor; void lgdt __P((struct region_descriptor *)); void fillw __P((short, void *, size_t)); struct pcb; void savectx __P((struct pcb *)); void switch_exit __P((struct proc *)); void proc_trampoline __P((void)); /* clock.c */ void initrtclock __P((void)); void startrtclock __P((void)); /* npx.c */ void npxdrop __P((void)); void npxsave __P((void)); /* vm_machdep.c */ int kvtop __P((caddr_t)); #if !defined(_LKM) #include "opt_math_emulate.h" #endif #ifdef MATH_EMULATE /* math_emulate.c */ int math_emulate __P((struct trapframe *)); #endif #if !defined(_LKM) #include "opt_user_ldt.h" #endif #ifdef USER_LDT /* sys_machdep.h */ int i386_get_ldt __P((struct proc *, void *, register_t *)); int i386_set_ldt __P((struct proc *, void *, register_t *)); #endif /* isa_machdep.c */ void isa_defaultirq __P((void)); int isa_nmi __P((void)); #if !defined(_LKM) #include "opt_vm86.h" #endif #ifdef VM86 /* vm86.c */ void vm86_gpfault __P((struct proc *, int)); #endif /* VM86 */ /* consinit.c */ void kgdb_port_init __P((void)); /* bus_machdep.c */ void i386_bus_space_init __P((void)); void i386_bus_space_mallocok __P((void)); #endif /* _KERNEL */ /* * CTL_MACHDEP definitions. */ #define CPU_CONSDEV 1 /* dev_t: console terminal device */ #define CPU_BIOSBASEMEM 2 /* int: bios-reported base mem (K) */ #define CPU_BIOSEXTMEM 3 /* int: bios-reported ext. mem (K) */ #define CPU_NKPDE 4 /* int: number of kernel PDEs */ #define CPU_BOOTED_KERNEL 5 /* string: booted kernel name */ #define CPU_DISKINFO 6 /* disk geometry information */ #define CPU_FPU_PRESENT 7 /* FPU is present */ #define CPU_OSFXSR 8 /* OS uses FXSAVE/FXRSTOR */ #define CPU_SSE 9 /* OS/CPU supports SSE */ #define CPU_SSE2 10 /* OS/CPU supports SSE2 */ #define CPU_MAXID 11 /* number of valid machdep ids */ #define CTL_MACHDEP_NAMES { \ { 0, 0 }, \ { "console_device", CTLTYPE_STRUCT }, \ { "biosbasemem", CTLTYPE_INT }, \ { "biosextmem", CTLTYPE_INT }, \ { "nkpde", CTLTYPE_INT }, \ { "booted_kernel", CTLTYPE_STRING }, \ { "diskinfo", CTLTYPE_STRUCT }, \ { "fpu_present", CTLTYPE_INT }, \ { "osfxsr", CTLTYPE_INT }, \ { "sse", CTLTYPE_INT }, \ { "sse2", CTLTYPE_INT }, \ } /* * Structure for CPU_DISKINFO sysctl call. * XXX this should be somewhere else. */ #define MAX_BIOSDISKS 16 struct disklist { int dl_nbiosdisks; /* number of bios disks */ struct biosdisk_info { int bi_dev; /* BIOS device # (0x80 ..) */ int bi_cyl; /* cylinders on disk */ int bi_head; /* heads per track */ int bi_sec; /* sectors per track */ u_int64_t bi_lbasecs; /* total sec. (iff ext13) */ #define BIFLAG_INVALID 0x01 #define BIFLAG_EXTINT13 0x02 int bi_flags; } dl_biosdisks[MAX_BIOSDISKS]; int dl_nnativedisks; /* number of native disks */ struct nativedisk_info { char ni_devname[16]; /* native device name */ int ni_nmatches; /* # of matches w/ BIOS */ int ni_biosmatches[MAX_BIOSDISKS]; /* indices in dl_biosdisks */ } dl_nativedisks[1]; /* actually longer */ }; #endif /* !_I386_CPU_H_ */