/* $NetBSD: cpu.h,v 1.25 2007/08/29 23:38:03 ad 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_ #if defined(_KERNEL) #if defined(_KERNEL_OPT) #include "opt_multiprocessor.h" #include "opt_lockdebug.h" #endif /* * Definitions unique to x86-64 cpu support. */ #include #include #include #include #include #include #include #include #include struct cpu_info { struct device *ci_dev; struct cpu_info *ci_self; /* * Will be accessed by other CPUs. */ struct cpu_info *ci_next; struct lwp *ci_curlwp; struct pmap_cpu *ci_pmap_cpu; struct lwp *ci_fpcurlwp; int ci_fpsaving; u_int ci_cpuid; int ci_cpumask; /* (1 << CPU ID) */ u_int ci_apicid; struct cpu_data ci_data; /* MI per-cpu data */ struct cc_microtime_state ci_cc;/* cc_microtime state */ /* * Private members. */ struct evcnt ci_tlb_evcnt; /* tlb shootdown counter */ int ci_need_tlbwait; /* need to wait for TLB invalidations */ u_int64_t ci_scratch; struct intrsource *ci_isources[MAX_INTR_SOURCES]; volatile int ci_mtx_count; /* Negative count of spin mutexes */ volatile int ci_mtx_oldspl; /* Old SPL at this ci_idepth */ /* The following must be aligned for cmpxchg8b. */ struct { uint32_t ipending; int ilevel; } ci_istate __aligned(8); #define ci_ipending ci_istate.ipending #define ci_ilevel ci_istate.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; int32_t ci_cpuid_level; uint32_t ci_signature; uint32_t ci_feature_flags; uint32_t ci_feature2_flags; uint32_t ci_vendor[4]; /* vendor string */ u_int64_t ci_tsc_freq; const struct cpu_functions *ci_func; void (*cpu_setup)(struct cpu_info *); void (*ci_info)(struct cpu_info *); int ci_want_resched; int ci_astpending; struct trapframe *ci_ddb_regs; struct x86_cache_info ci_cinfo[CAI_COUNT]; char *ci_gdt; struct x86_64_tss ci_doubleflt_tss; struct x86_64_tss ci_ddbipi_tss; char *ci_doubleflt_stack; char *ci_ddbipi_stack; struct evcnt ci_ipi_events[X86_NIPI]; }; #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 */ 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) cii = 0, ci = cpu_info_list; \ ci != NULL; ci = ci->ci_next #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_lwps(void); #else /* !MULTIPROCESSOR */ #define X86_MAXPROCS 1 extern struct cpu_info cpu_info_primary; #define curcpu() (&cpu_info_primary) /* * definitions of cpu-dependent requirements * referenced in generic code */ #define cpu_number() 0 #define CPU_IS_PRIMARY(ci) 1 #endif #define aston(l) ((l)->l_md.md_astpending = 1) extern u_int32_t cpus_attached; #define curlwp curcpu()->ci_curlwp #define curpcb (&curlwp->l_addr->u_pcb) /* * Arguments to hardclock, softclock and statclock * encapsulate the previous machine state in an opaque * clockframe; for now, use generic intrframe. */ struct clockframe { struct intrframe cf_if; }; #define CLKF_USERMODE(frame) USERMODE((frame)->cf_if.if_cs, (frame)->cf_if.if_rflags) #define CLKF_PC(frame) ((frame)->cf_if.if_rip) #define CLKF_INTR(frame) (curcpu()->ci_idepth > 0) /* * This is used during profiling to integrate system time. It can safely * assume that the process is resident. */ #define LWP_PC(l) ((l)->l_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. */ extern void cpu_need_proftick(struct lwp *); /* * Notify an LWP that it has a signal pending, process as soon as possible. */ extern void cpu_signotify(struct lwp *); /* * We need a machine-independent name for this. */ extern void (*delay_func)(int); #define DELAY(x) (*delay_func)(x) #define delay(x) (*delay_func)(x) /* * pull in #defines for kinds of processors */ extern int biosbasemem; extern int biosextmem; extern int cpu; extern int cpu_feature; extern int cpu_feature2; extern int cpu_id; extern char cpu_vendor[]; extern int cpuid_level; /* identcpu.c */ void identifycpu(struct cpu_info *); 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_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 lwp_trampoline(void); void child_trampoline(void); /* clock.c */ void initrtclock(u_long); void startrtclock(void); void i8254_delay(int); void i8254_microtime(struct timeval *); void i8254_initclocks(void); void cpu_init_msrs(struct cpu_info *); /* vm_machdep.c */ int kvtop(void *); /* trap.c */ void child_return(void *); /* consinit.c */ void kgdb_port_init(void); /* bus_machdep.c */ void x86_bus_space_init(void); void x86_bus_space_mallocok(void); #endif /* _KERNEL */ #include /* * 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_MAXID 8 /* 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 }, \ } /* * 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 /* !_AMD64_CPU_H_ */