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: releng/12.0/sys/x86/include/x86_smp.h 332073 2018-04-05 14:39:51Z royger $
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
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