/* $NetBSD: cpu.h,v 1.9 2008/10/25 19:13:40 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. 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 _X86_CPU_H_ #define _X86_CPU_H_ #ifdef _KERNEL #if defined(_KERNEL_OPT) #include "opt_xen.h" #ifdef i386 #include "opt_user_ldt.h" #include "opt_vm86.h" #endif #endif /* * Definitions unique to x86 cpu support. */ #include <machine/frame.h> #include <machine/segments.h> #include <machine/tss.h> #include <machine/intrdefs.h> #include <x86/cacheinfo.h> #include <x86/via_padlock.h> #include <sys/cpu_data.h> #include <sys/evcnt.h> #include <lib/libkern/libkern.h> /* offsetof */ struct intrsource; struct pmap; struct device; #ifdef __x86_64__ #define i386tss x86_64_tss #endif #define NIOPORTS 1024 /* # of ports we allow to be mapped */ #define IOMAPSIZE (NIOPORTS / 8) /* I/O bitmap size in bytes */ /* * a bunch of this belongs in cpuvar.h; move it later.. */ struct cpu_info { struct device *ci_dev; /* pointer to our device */ struct cpu_info *ci_self; /* self-pointer */ volatile struct vcpu_info *ci_vcpu; /* for XEN */ void *ci_tlog_base; /* Trap log base */ int32_t ci_tlog_offset; /* Trap log current offset */ /* * Will be accessed by other CPUs. */ struct cpu_info *ci_next; /* next cpu */ struct lwp *ci_curlwp; /* current owner of the processor */ struct pmap_cpu *ci_pmap_cpu; /* per-CPU pmap data */ struct lwp *ci_fpcurlwp; /* current owner of the FPU */ int ci_fpsaving; /* save in progress */ int ci_fpused; /* XEN: FPU was used by curlwp */ cpuid_t ci_cpuid; /* our CPU ID */ int ci_cpumask; /* (1 << CPU ID) */ uint8_t ci_initapicid; /* our intitial APIC ID */ uint8_t ci_packageid; uint8_t ci_coreid; uint8_t ci_smtid; struct cpu_data ci_data; /* MI per-cpu data */ /* * Private members. */ struct evcnt ci_tlb_evcnt; /* tlb shootdown counter */ struct pmap *ci_pmap; /* current pmap */ int ci_need_tlbwait; /* need to wait for TLB invalidations */ int ci_want_pmapload; /* pmap_load() is needed */ volatile int ci_tlbstate; /* one of TLBSTATE_ states. see below */ #define TLBSTATE_VALID 0 /* all user tlbs are valid */ #define TLBSTATE_LAZY 1 /* tlbs are valid but won't be kept uptodate */ #define TLBSTATE_STALE 2 /* we might have stale user tlbs */ int ci_curldt; /* current LDT descriptor */ uint64_t ci_scratch; #ifdef XEN struct iplsource *ci_isources[NIPL]; #else struct intrsource *ci_isources[MAX_INTR_SOURCES]; #endif 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; void * ci_intrstack; uint32_t ci_imask[NIPL]; uint32_t ci_iunmask[NIPL]; uint32_t ci_flags; /* flags; see below */ uint32_t ci_ipis; /* interprocessor interrupts pending */ int sc_apic_version; /* local APIC version */ uint32_t ci_signature; /* X86 cpuid type */ uint32_t ci_feature_flags;/* X86 %edx CPUID feature bits */ uint32_t ci_feature2_flags;/* X86 %ecx CPUID feature bits */ uint32_t ci_feature3_flags;/* X86 extended %edx feature bits */ uint32_t ci_feature4_flags;/* X86 extended %ecx feature bits */ uint32_t ci_padlock_flags;/* VIA PadLock feature bits */ uint32_t ci_vendor[4]; /* vendor string */ uint32_t ci_cpu_serial[3]; /* PIII serial number */ volatile uint32_t ci_lapic_counter; const struct cpu_functions *ci_func; /* start/stop functions */ struct trapframe *ci_ddb_regs; u_int ci_cflush_lsize; /* CFLUSH insn line size */ struct x86_cache_info ci_cinfo[CAI_COUNT]; union descriptor *ci_gdt; #ifdef i386 struct i386tss ci_doubleflt_tss; struct i386tss ci_ddbipi_tss; #endif char *ci_doubleflt_stack; char *ci_ddbipi_stack; struct evcnt ci_ipi_events[X86_NIPI]; struct via_padlock ci_vp; /* VIA PadLock private storage */ struct i386tss ci_tss; /* Per-cpu TSS; shared among LWPs */ char ci_iomap[IOMAPSIZE]; /* I/O Bitmap */ int ci_tss_sel; /* TSS selector of this cpu */ /* * The following two are actually region_descriptors, * but that would pollute the namespace. */ uintptr_t ci_suspend_gdt; uint16_t ci_suspend_gdt_padding; uintptr_t ci_suspend_idt; uint16_t ci_suspend_idt_padding; uint16_t ci_suspend_tr; uint16_t ci_suspend_ldt; uintptr_t ci_suspend_fs; uintptr_t ci_suspend_gs; uintptr_t ci_suspend_kgs; uintptr_t ci_suspend_efer; uintptr_t ci_suspend_reg[12]; uintptr_t ci_suspend_cr0; uintptr_t ci_suspend_cr2; uintptr_t ci_suspend_cr3; uintptr_t ci_suspend_cr4; uintptr_t ci_suspend_cr8; /* The following must be in a single cache line. */ int ci_want_resched __aligned(64); int ci_padout __aligned(64); }; /* * Processor flag notes: The "primary" CPU has certain MI-defined * roles (mostly relating to hardclock handling); we distinguish * betwen the processor which booted us, and the processor currently * holding the "primary" role just to give us the flexibility later to * change primaries should we be sufficiently twisted. */ #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_SYNCTSC 0x0800 /* Synchronize TSC */ #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 */ /* * We statically allocate the CPU info for the primary CPU (or, * the only CPU on uniprocessors), and the primary CPU is the * first CPU on the CPU info list. */ 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 #define CPU_STARTUP(_ci, _target) ((_ci)->ci_func->start(_ci, _target)) #define CPU_STOP(_ci) ((_ci)->ci_func->stop(_ci)) #define CPU_START_CLEANUP(_ci) ((_ci)->ci_func->cleanup(_ci)) #if !defined(__GNUC__) || defined(_LKM) /* For non-GCC and modules */ struct cpu_info *x86_curcpu(void); void cpu_set_curpri(int); # ifdef __GNUC__ lwp_t *x86_curlwp(void) __attribute__ ((const)); # else lwp_t *x86_curlwp(void); # endif #endif #define cpu_number() (cpu_index(curcpu())) #define CPU_IS_PRIMARY(ci) ((ci)->ci_flags & CPUF_PRIMARY) #define X86_AST_GENERIC 0x01 #define X86_AST_PREEMPT 0x02 #define aston(l, why) ((l)->l_md.md_astpending |= (why)) #define cpu_did_resched(l) ((l)->l_md.md_astpending &= ~X86_AST_PREEMPT) void cpu_boot_secondary_processors(void); void cpu_init_idle_lwps(void); void cpu_init_msrs(struct cpu_info *, bool); extern uint32_t cpus_attached; #ifndef XEN #define curcpu() x86_curcpu() #define curlwp x86_curlwp() #else /* XXX initgdt() calls pmap_kenter_pa() which calls splvm() before %fs is set */ #define curcpu() (&cpu_info_primary) #define curlwp curcpu()->ci_curlwp #endif #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; }; /* * 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 *l); /* * Notify the LWP l 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)(unsigned int); struct timeval; #define DELAY(x) (*delay_func)(x) #define delay(x) (*delay_func)(x) extern int biosbasemem; extern int biosextmem; extern unsigned int cpu_feature; extern unsigned int cpu_feature2; extern unsigned int cpu_feature_padlock; extern int cpu; extern int cpuid_level; extern int cpu_class; extern char cpu_brand_string[]; extern int i386_use_fxsave; extern int i386_has_sse; extern int i386_has_sse2; extern void (*x86_cpu_idle)(void); #define cpu_idle() (*x86_cpu_idle)() /* machdep.c */ void dumpconf(void); void cpu_reset(void); void i386_proc0_tss_ldt_init(void); void dumpconf(void); void cpu_reset(void); void x86_64_proc0_tss_ldt_init(void); void x86_64_init_pcb_tss_ldt(struct cpu_info *); /* longrun.c */ u_int tmx86_get_longrun_mode(void); void tmx86_get_longrun_status(u_int *, u_int *, u_int *); void tmx86_init_longrun(void); /* identcpu.c */ void cpu_probe(struct cpu_info *); void cpu_identify(struct cpu_info *); /* vm_machdep.c */ void cpu_proc_fork(struct proc *, struct proc *); /* locore.s */ struct region_descriptor; void lgdt(struct region_descriptor *); #ifdef XEN void lgdt_finish(void); void i386_switch_context(lwp_t *); #endif struct pcb; void savectx(struct pcb *); void lwp_trampoline(void); void child_trampoline(void); #ifdef XEN void startrtclock(void); void xen_delay(unsigned int); void xen_initclocks(void); #else /* clock.c */ void initrtclock(u_long); void startrtclock(void); void i8254_delay(unsigned int); void i8254_microtime(struct timeval *); void i8254_initclocks(void); #endif /* cpu.c */ void cpu_probe_features(struct cpu_info *); /* npx.c */ void npxsave_lwp(struct lwp *, bool); void npxsave_cpu(bool); /* vm_machdep.c */ int kvtop(void *); #ifdef USER_LDT /* sys_machdep.h */ int x86_get_ldt(struct lwp *, void *, register_t *); int x86_set_ldt(struct lwp *, void *, register_t *); #endif /* isa_machdep.c */ void isa_defaultirq(void); int isa_nmi(void); #ifdef VM86 /* vm86.c */ void vm86_gpfault(struct lwp *, int); #endif /* VM86 */ /* consinit.c */ void kgdb_port_init(void); /* bus_machdep.c */ void x86_bus_space_init(void); void x86_bus_space_mallocok(void); #include <machine/psl.h> /* Must be after struct cpu_info declaration */ #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) */ /* CPU_NKPDE 4 obsolete: int: number of kernel PDEs */ #define CPU_BOOTED_KERNEL 5 /* string: booted kernel name */ #define CPU_DISKINFO 6 /* struct disklist *: * disk geometry information */ #define CPU_FPU_PRESENT 7 /* int: FPU is present */ #define CPU_OSFXSR 8 /* int: OS uses FXSAVE/FXRSTOR */ #define CPU_SSE 9 /* int: OS/CPU supports SSE */ #define CPU_SSE2 10 /* int: OS/CPU supports SSE2 */ #define CPU_TMLR_MODE 11 /* int: longrun mode * 0: minimum frequency * 1: economy * 2: performance * 3: maximum frequency */ #define CPU_TMLR_FREQUENCY 12 /* int: current frequency */ #define CPU_TMLR_VOLTAGE 13 /* int: curret voltage */ #define CPU_TMLR_PERCENTAGE 14 /* int: current clock percentage */ #define CPU_MAXID 15 /* number of valid machdep ids */ /* * 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 */ uint64_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 /* !_X86_CPU_H_ */