/* $OpenBSD: cpu.h,v 1.29 2007/05/10 17:59:24 deraadt Exp $ */ /* $NetBSD: cpu.h,v 1.1 2003/04/26 18:39:39 fvdl 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. 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 _AMD64_CPU_H_ #define _AMD64_CPU_H_ /* * Definitions unique to x86-64 cpu support. */ #include #include #include #include #include #ifdef MULTIPROCESSOR #include #include #endif #include #include #include struct cpu_info { struct device *ci_dev; struct cpu_info *ci_self; struct schedstate_percpu ci_schedstate; /* scheduler state */ struct cpu_info *ci_next; struct proc *ci_curproc; struct simplelock ci_slock; u_int ci_cpuid; u_int ci_apicid; u_long ci_spin_locks; u_long ci_simple_locks; u_int64_t ci_scratch; struct proc *ci_fpcurproc; int ci_fpsaving; volatile u_int32_t ci_tlb_ipi_mask; struct pcb *ci_curpcb; struct pcb *ci_idle_pcb; int ci_idle_tss_sel; struct intrsource *ci_isources[MAX_INTR_SOURCES]; u_int32_t ci_ipending; int ci_ilevel; int ci_idepth; u_int32_t ci_imask[NIPL]; u_int32_t ci_iunmask[NIPL]; paddr_t ci_idle_pcb_paddr; u_int ci_flags; u_int32_t ci_ipis; u_int32_t ci_feature_flags; u_int32_t ci_feature_eflags; u_int32_t ci_signature; u_int64_t ci_tsc_freq; struct cpu_functions *ci_func; void (*cpu_setup)(struct cpu_info *); void (*ci_info)(struct cpu_info *); int ci_want_resched; struct x86_cache_info ci_cinfo[CAI_COUNT]; struct timeval ci_cc_time; int64_t ci_cc_cc; int64_t ci_cc_ms_delta; int64_t ci_cc_denom; char *ci_gdt; volatile int ci_ddb_paused; #define CI_DDB_RUNNING 0 #define CI_DDB_SHOULDSTOP 1 #define CI_DDB_STOPPED 2 #define CI_DDB_ENTERDDB 3 #define CI_DDB_INDDB 4 volatile int ci_setperf_state; #define CI_SETPERF_READY 0 #define CI_SETPERF_SHOULDSTOP 1 #define CI_SETPERF_INTRANSIT 2 #define CI_SETPERF_DONE 3 struct x86_64_tss ci_doubleflt_tss; char *ci_doubleflt_stack; }; #define CPUF_BSP 0x0001 /* CPU is the original BSP */ #define CPUF_AP 0x0002 /* CPU is an AP */ #define CPUF_SP 0x0004 /* CPU is only processor */ #define CPUF_PRIMARY 0x0008 /* CPU is active primary processor */ #define CPUF_PRESENT 0x1000 /* CPU is present */ #define CPUF_RUNNING 0x2000 /* CPU is running */ #define CPUF_PAUSE 0x4000 /* CPU is paused in DDB */ #define CPUF_GO 0x8000 /* CPU should start running */ #define PROC_PC(p) ((p)->p_md.md_regs->tf_rip) extern struct cpu_info cpu_info_primary; extern struct cpu_info *cpu_info_list; #define CPU_INFO_ITERATOR int #define CPU_INFO_FOREACH(cii, ci) for (cii = 0, ci = cpu_info_list; \ ci != NULL; ci = ci->ci_next) #define CPU_INFO_UNIT(ci) ((ci)->ci_dev->dv_unit) /* * Preempt the current process if in interrupt from user mode, * or after the current trap/syscall if in system mode. */ extern void need_resched(struct cpu_info *); #if defined(MULTIPROCESSOR) #define X86_MAXPROCS 32 /* bitmask; can be bumped to 64 */ #define CPU_STARTUP(_ci) ((_ci)->ci_func->start(_ci)) #define CPU_STOP(_ci) ((_ci)->ci_func->stop(_ci)) #define CPU_START_CLEANUP(_ci) ((_ci)->ci_func->cleanup(_ci)) #define curcpu() ({struct cpu_info *__ci; \ asm volatile("movq %%gs:8,%0" : "=r" (__ci)); \ __ci;}) #define cpu_number() (curcpu()->ci_cpuid) #define CPU_IS_PRIMARY(ci) ((ci)->ci_flags & CPUF_PRIMARY) extern struct cpu_info *cpu_info[X86_MAXPROCS]; void cpu_boot_secondary_processors(void); void cpu_init_idle_pcbs(void); #else /* !MULTIPROCESSOR */ #define X86_MAXPROCS 1 #ifdef _KERNEL extern struct cpu_info cpu_info_primary; #define curcpu() (&cpu_info_primary) #endif /* * definitions of cpu-dependent requirements * referenced in generic code */ #define cpu_number() 0 #define CPU_IS_PRIMARY(ci) 1 #endif /* MULTIPROCESSOR */ #include #ifdef MULTIPROCESSOR #include #endif #define aston(p) ((p)->p_md.md_astpending = 1) extern u_int32_t cpus_attached; #define curpcb curcpu()->ci_curpcb #define curproc curcpu()->ci_curproc /* * Arguments to hardclock, softclock and statclock * encapsulate the previous machine state in an opaque * clockframe; for now, use generic intrframe. */ #define clockframe intrframe #define CLKF_USERMODE(frame) USERMODE((frame)->if_cs, (frame)->if_rflags) #define CLKF_PC(frame) ((frame)->if_rip) #define CLKF_INTR(frame) (curcpu()->ci_idepth > 1) /* * This is used during profiling to integrate system time. */ #define PROC_PC(p) ((p)->p_md.md_regs->tf_rip) /* * 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) aston(p) void signotify(struct proc *); /* * We need a machine-independent name for this. */ extern void (*delay_func)(int); struct timeval; #define DELAY(x) (*delay_func)(x) #define delay(x) (*delay_func)(x) #ifdef _KERNEL extern int biosbasemem; extern int biosextmem; extern int cpu; extern int cpu_feature; extern int cpu_ecxfeature; extern int cpu_id; extern char cpu_vendor[]; extern int cpuid_level; extern int cpuspeed; /* identcpu.c */ void identifycpu(struct cpu_info *); int cpu_amd64speed(int *); void cpu_probe_features(struct cpu_info *); /* machdep.c */ void dumpconf(void); int cpu_maxproc(void); void cpu_reset(void); void x86_64_proc0_tss_ldt_init(void); void x86_64_bufinit(void); void x86_64_init_pcb_tss_ldt(struct cpu_info *); void cpu_proc_fork(struct proc *, struct proc *); struct region_descriptor; void lgdt(struct region_descriptor *); void fillw(short, void *, size_t); struct pcb; void savectx(struct pcb *); void switch_exit(struct proc *, void (*)(struct proc *)); void proc_trampoline(void); void child_trampoline(void); /* clock.c */ void initrtclock(void); void startrtclock(void); void i8254_delay(int); void i8254_initclocks(void); void i8254_inittimecounter(void); void i8254_inittimecounter_simple(void); void cpu_init_msrs(struct cpu_info *); /* trap.c */ void child_return(void *); /* dkcsum.c */ void dkcsumattach(void); /* consinit.c */ void kgdb_port_init(void); /* bus_machdep.c */ void x86_bus_space_init(void); void x86_bus_space_mallocok(void); /* powernow-k8.c */ void k8_powernow_init(struct cpu_info *); void k8_powernow_setperf(int); #ifdef MULTIPROCESSOR /* mp_setperf.c */ void mp_setperf_init(void); #endif #endif /* _KERNEL */ /* * CTL_MACHDEP definitions. */ #define CPU_CONSDEV 1 /* dev_t: console terminal device */ #define CPU_BIOS 2 /* BIOS variables */ #define CPU_BLK2CHR 3 /* convert blk maj into chr one */ #define CPU_CHR2BLK 4 /* convert chr maj into blk one */ #define CPU_ALLOWAPERTURE 5 /* allow mmap of /dev/xf86 */ #define CPU_CPUVENDOR 6 /* cpuid vendor string */ #define CPU_CPUID 7 /* cpuid */ #define CPU_CPUFEATURE 8 /* cpuid features */ #define CPU_APMWARN 9 /* APM battery warning percentage */ #define CPU_KBDRESET 10 /* keyboard reset under pcvt */ #define CPU_APMHALT 11 /* halt -p hack */ #define CPU_USERLDT 12 #define CPU_MAXID 13 /* number of valid machdep ids */ #define CTL_MACHDEP_NAMES { \ { 0, 0 }, \ { "console_device", CTLTYPE_STRUCT }, \ { "bios", CTLTYPE_INT }, \ { "blk2chr", CTLTYPE_STRUCT }, \ { "chr2blk", CTLTYPE_STRUCT }, \ { "allowaperture", CTLTYPE_INT }, \ { "cpuvendor", CTLTYPE_STRING }, \ { "cpuid", CTLTYPE_INT }, \ { "cpufeature", CTLTYPE_INT }, \ { "apmwarn", CTLTYPE_INT }, \ { "kbdreset", CTLTYPE_INT }, \ { "apmhalt", CTLTYPE_INT }, \ { "userldt", CTLTYPE_INT }, \ } /* * Default cr4 flags. * Doesn't really belong here, but doesn't really belong anywhere else * either. Just to avoid painful mismatches of cr4 flags since they are * set in three different places. */ #define CR4_DEFAULT (CR4_PAE|CR4_PGE|CR4_PSE|CR4_OSFXSR|CR4_OSXMMEXCPT) #endif /* !_AMD64_CPU_H_ */