1 /*- 2 * SPDX-License-Identifier: Beerware 3 * 4 * ---------------------------------------------------------------------------- 5 * "THE BEER-WARE LICENSE" (Revision 42): 6 * <phk@FreeBSD.org> wrote this file. As long as you retain this notice you 7 * can do whatever you want with this stuff. If we meet some day, and you think 8 * this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp 9 * ---------------------------------------------------------------------------- 10 * 11 * $FreeBSD$ 12 * 13 */ 14 15 #ifndef _X86_X86_SMP_H_ 16 #define _X86_X86_SMP_H_ 17 18 #include <sys/bus.h> 19 #include <machine/frame.h> 20 #include <machine/intr_machdep.h> 21 #include <x86/apicvar.h> 22 #include <machine/pcb.h> 23 24 struct pmap; 25 26 /* global data in mp_x86.c */ 27 extern int mp_naps; 28 extern int boot_cpu_id; 29 extern struct pcb stoppcbs[]; 30 extern int cpu_apic_ids[]; 31 extern int bootAP; 32 extern void *dpcpu; 33 extern char *bootSTK; 34 extern void *bootstacks[]; 35 extern volatile u_int cpu_ipi_pending[]; 36 extern volatile int aps_ready; 37 extern struct mtx ap_boot_mtx; 38 extern int cpu_logical; 39 extern int cpu_cores; 40 extern volatile uint32_t smp_tlb_generation; 41 extern struct pmap *smp_tlb_pmap; 42 extern u_int xhits_gbl[]; 43 extern u_int xhits_pg[]; 44 extern u_int xhits_rng[]; 45 extern u_int ipi_global; 46 extern u_int ipi_page; 47 extern u_int ipi_range; 48 extern u_int ipi_range_size; 49 50 extern int nmi_kdb_lock; 51 extern int nmi_is_broadcast; 52 53 struct cpu_info { 54 int cpu_present:1; 55 int cpu_bsp:1; 56 int cpu_disabled:1; 57 int cpu_hyperthread:1; 58 }; 59 extern struct cpu_info *cpu_info; 60 61 #ifdef COUNT_IPIS 62 extern u_long *ipi_invltlb_counts[MAXCPU]; 63 extern u_long *ipi_invlrng_counts[MAXCPU]; 64 extern u_long *ipi_invlpg_counts[MAXCPU]; 65 extern u_long *ipi_invlcache_counts[MAXCPU]; 66 extern u_long *ipi_rendezvous_counts[MAXCPU]; 67 #endif 68 69 /* IPI handlers */ 70 inthand_t 71 IDTVEC(invltlb), /* TLB shootdowns - global */ 72 IDTVEC(invlpg), /* TLB shootdowns - 1 page */ 73 IDTVEC(invlrng), /* TLB shootdowns - page range */ 74 IDTVEC(invlcache), /* Write back and invalidate cache */ 75 IDTVEC(ipi_intr_bitmap_handler), /* Bitmap based IPIs */ 76 IDTVEC(cpustop), /* CPU stops & waits to be restarted */ 77 IDTVEC(cpususpend), /* CPU suspends & waits to be resumed */ 78 IDTVEC(rendezvous); /* handle CPU rendezvous */ 79 80 /* functions in x86_mp.c */ 81 void assign_cpu_ids(void); 82 void cpu_add(u_int apic_id, char boot_cpu); 83 void cpustop_handler(void); 84 void cpususpend_handler(void); 85 void init_secondary_tail(void); 86 void invltlb_handler(void); 87 void invlpg_handler(void); 88 void invlrng_handler(void); 89 void invlcache_handler(void); 90 void init_secondary(void); 91 void ipi_startup(int apic_id, int vector); 92 void ipi_all_but_self(u_int ipi); 93 void ipi_bitmap_handler(struct trapframe frame); 94 void ipi_cpu(int cpu, u_int ipi); 95 int ipi_nmi_handler(void); 96 void ipi_selected(cpuset_t cpus, u_int ipi); 97 u_int mp_bootaddress(u_int); 98 void set_interrupt_apic_ids(void); 99 void smp_cache_flush(void); 100 void smp_masked_invlpg(cpuset_t mask, vm_offset_t addr); 101 void smp_masked_invlpg_range(cpuset_t mask, vm_offset_t startva, 102 vm_offset_t endva); 103 void smp_masked_invltlb(cpuset_t mask, struct pmap *pmap); 104 void mem_range_AP_init(void); 105 void topo_probe(void); 106 void ipi_send_cpu(int cpu, u_int ipi); 107 108 #endif 109