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 unsigned int boot_address; 36 extern unsigned int bootMP_size; 37 extern volatile u_int cpu_ipi_pending[]; 38 extern volatile int aps_ready; 39 extern struct mtx ap_boot_mtx; 40 extern int cpu_logical; 41 extern int cpu_cores; 42 extern volatile uint32_t smp_tlb_generation; 43 extern struct pmap *smp_tlb_pmap; 44 extern vm_offset_t smp_tlb_addr1, smp_tlb_addr2; 45 extern u_int xhits_gbl[]; 46 extern u_int xhits_pg[]; 47 extern u_int xhits_rng[]; 48 extern u_int ipi_global; 49 extern u_int ipi_page; 50 extern u_int ipi_range; 51 extern u_int ipi_range_size; 52 53 extern int nmi_kdb_lock; 54 extern int nmi_is_broadcast; 55 56 struct cpu_info { 57 int cpu_present:1; 58 int cpu_bsp:1; 59 int cpu_disabled:1; 60 int cpu_hyperthread:1; 61 }; 62 extern struct cpu_info *cpu_info; 63 64 #ifdef COUNT_IPIS 65 extern u_long *ipi_invltlb_counts[MAXCPU]; 66 extern u_long *ipi_invlrng_counts[MAXCPU]; 67 extern u_long *ipi_invlpg_counts[MAXCPU]; 68 extern u_long *ipi_invlcache_counts[MAXCPU]; 69 extern u_long *ipi_rendezvous_counts[MAXCPU]; 70 #endif 71 72 /* IPI handlers */ 73 inthand_t 74 IDTVEC(invltlb), /* TLB shootdowns - global */ 75 IDTVEC(invlpg), /* TLB shootdowns - 1 page */ 76 IDTVEC(invlrng), /* TLB shootdowns - page range */ 77 IDTVEC(invlcache), /* Write back and invalidate cache */ 78 IDTVEC(ipi_intr_bitmap_handler), /* Bitmap based IPIs */ 79 IDTVEC(cpustop), /* CPU stops & waits to be restarted */ 80 IDTVEC(cpususpend), /* CPU suspends & waits to be resumed */ 81 IDTVEC(rendezvous); /* handle CPU rendezvous */ 82 83 /* functions in x86_mp.c */ 84 void assign_cpu_ids(void); 85 void cpu_add(u_int apic_id, char boot_cpu); 86 void cpustop_handler(void); 87 void cpususpend_handler(void); 88 void alloc_ap_trampoline(vm_paddr_t *physmap, unsigned int *physmap_idx); 89 void init_secondary_tail(void); 90 void invltlb_handler(void); 91 void invlpg_handler(void); 92 void invlrng_handler(void); 93 void invlcache_handler(void); 94 void init_secondary(void); 95 void ipi_startup(int apic_id, int vector); 96 void ipi_all_but_self(u_int ipi); 97 void ipi_bitmap_handler(struct trapframe frame); 98 void ipi_cpu(int cpu, u_int ipi); 99 int ipi_nmi_handler(void); 100 void ipi_selected(cpuset_t cpus, u_int ipi); 101 void set_interrupt_apic_ids(void); 102 void smp_cache_flush(void); 103 void smp_masked_invlpg(cpuset_t mask, vm_offset_t addr, struct pmap *pmap); 104 void smp_masked_invlpg_range(cpuset_t mask, vm_offset_t startva, 105 vm_offset_t endva, struct pmap *pmap); 106 void smp_masked_invltlb(cpuset_t mask, struct pmap *pmap); 107 void mem_range_AP_init(void); 108 void topo_probe(void); 109 void ipi_send_cpu(int cpu, u_int ipi); 110 111 #endif 112