Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/x86/include/x86_smp.h
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1 /*- 2 * ---------------------------------------------------------------------------- 3 * "THE BEER-WARE LICENSE" (Revision 42): 4 * <phk@FreeBSD.org> wrote this file. As long as you retain this notice you 5 * can do whatever you want with this stuff. If we meet some day, and you think 6 * this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp 7 * ---------------------------------------------------------------------------- 8 * 9 * $FreeBSD: releng/11.2/sys/x86/include/x86_smp.h 329462 2018-02-17 18:00:01Z kib $ 10 * 11 */ 12 13 #ifndef _X86_X86_SMP_H_ 14 #define _X86_X86_SMP_H_ 15 16 #include <sys/bus.h> 17 #include <machine/frame.h> 18 #include <machine/intr_machdep.h> 19 #include <x86/apicvar.h> 20 #include <machine/pcb.h> 21 22 struct pmap; 23 24 /* global data in mp_x86.c */ 25 extern int mp_naps; 26 extern int boot_cpu_id; 27 extern struct pcb stoppcbs[]; 28 extern int cpu_apic_ids[]; 29 extern int bootAP; 30 extern void *dpcpu; 31 extern char *bootSTK; 32 extern void *bootstacks[]; 33 extern volatile u_int cpu_ipi_pending[]; 34 extern volatile int aps_ready; 35 extern struct mtx ap_boot_mtx; 36 extern int cpu_logical; 37 extern int cpu_cores; 38 extern volatile uint32_t smp_tlb_generation; 39 extern struct pmap *smp_tlb_pmap; 40 extern vm_offset_t smp_tlb_addr1, smp_tlb_addr2; 41 extern u_int xhits_gbl[]; 42 extern u_int xhits_pg[]; 43 extern u_int xhits_rng[]; 44 extern u_int ipi_global; 45 extern u_int ipi_page; 46 extern u_int ipi_range; 47 extern u_int ipi_range_size; 48 49 extern int nmi_kdb_lock; 50 extern int nmi_is_broadcast; 51 52 struct cpu_info { 53 int cpu_present:1; 54 int cpu_bsp:1; 55 int cpu_disabled:1; 56 int cpu_hyperthread:1; 57 }; 58 extern struct cpu_info cpu_info[]; 59 60 #ifdef COUNT_IPIS 61 extern u_long *ipi_invltlb_counts[MAXCPU]; 62 extern u_long *ipi_invlrng_counts[MAXCPU]; 63 extern u_long *ipi_invlpg_counts[MAXCPU]; 64 extern u_long *ipi_invlcache_counts[MAXCPU]; 65 extern u_long *ipi_rendezvous_counts[MAXCPU]; 66 #endif 67 68 /* IPI handlers */ 69 inthand_t 70 IDTVEC(invltlb), /* TLB shootdowns - global */ 71 IDTVEC(invlpg), /* TLB shootdowns - 1 page */ 72 IDTVEC(invlrng), /* TLB shootdowns - page range */ 73 IDTVEC(invlcache), /* Write back and invalidate cache */ 74 IDTVEC(ipi_intr_bitmap_handler), /* Bitmap based IPIs */ 75 IDTVEC(cpustop), /* CPU stops & waits to be restarted */ 76 IDTVEC(cpususpend), /* CPU suspends & waits to be resumed */ 77 IDTVEC(rendezvous); /* handle CPU rendezvous */ 78 79 /* functions in x86_mp.c */ 80 void assign_cpu_ids(void); 81 void cpu_add(u_int apic_id, char boot_cpu); 82 void cpustop_handler(void); 83 void cpususpend_handler(void); 84 void init_secondary_tail(void); 85 void invltlb_handler(void); 86 void invlpg_handler(void); 87 void invlrng_handler(void); 88 void invlcache_handler(void); 89 void init_secondary(void); 90 void ipi_startup(int apic_id, int vector); 91 void ipi_all_but_self(u_int ipi); 92 void ipi_bitmap_handler(struct trapframe frame); 93 void ipi_cpu(int cpu, u_int ipi); 94 int ipi_nmi_handler(void); 95 void ipi_selected(cpuset_t cpus, u_int ipi); 96 u_int mp_bootaddress(u_int); 97 void set_interrupt_apic_ids(void); 98 void smp_cache_flush(void); 99 void smp_masked_invlpg(cpuset_t mask, vm_offset_t addr, struct pmap *pmap); 100 void smp_masked_invlpg_range(cpuset_t mask, vm_offset_t startva, 101 vm_offset_t endva, struct pmap *pmap); 102 void smp_masked_invltlb(cpuset_t mask, struct pmap *pmap); 103 void mem_range_AP_init(void); 104 void topo_probe(void); 105 void ipi_send_cpu(int cpu, u_int ipi); 106 107 #endif
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