x86_smp.h revision 307856 
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: stable/11/sys/x86/include/x86_smp.h 307856 2016-10-24 11:47:27Z 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
22struct pmap;
23
24/* global data in mp_x86.c */
25extern int mp_naps;
26extern int boot_cpu_id;
27extern struct pcb stoppcbs[];
28extern int cpu_apic_ids[];
29extern int bootAP;
30extern void *dpcpu;
31extern char *bootSTK;
32extern void *bootstacks[];
33extern volatile u_int cpu_ipi_pending[];
34extern volatile int aps_ready;
35extern struct mtx ap_boot_mtx;
36extern int cpu_logical;
37extern int cpu_cores;
38extern volatile uint32_t smp_tlb_generation;
39extern struct pmap *smp_tlb_pmap;
40extern u_int xhits_gbl[];
41extern u_int xhits_pg[];
42extern u_int xhits_rng[];
43extern u_int ipi_global;
44extern u_int ipi_page;
45extern u_int ipi_range;
46extern u_int ipi_range_size;
47
48struct cpu_info {
49	int	cpu_present:1;
50	int	cpu_bsp:1;
51	int	cpu_disabled:1;
52	int	cpu_hyperthread:1;
53};
54extern struct cpu_info cpu_info[];
55
56#ifdef COUNT_IPIS
57extern u_long *ipi_invltlb_counts[MAXCPU];
58extern u_long *ipi_invlrng_counts[MAXCPU];
59extern u_long *ipi_invlpg_counts[MAXCPU];
60extern u_long *ipi_invlcache_counts[MAXCPU];
61extern u_long *ipi_rendezvous_counts[MAXCPU];
62#endif
63
64/* IPI handlers */
65inthand_t
66	IDTVEC(invltlb),	/* TLB shootdowns - global */
67	IDTVEC(invlpg),		/* TLB shootdowns - 1 page */
68	IDTVEC(invlrng),	/* TLB shootdowns - page range */
69	IDTVEC(invlcache),	/* Write back and invalidate cache */
70	IDTVEC(ipi_intr_bitmap_handler), /* Bitmap based IPIs */
71	IDTVEC(cpustop),	/* CPU stops & waits to be restarted */
72	IDTVEC(cpususpend),	/* CPU suspends & waits to be resumed */
73	IDTVEC(rendezvous);	/* handle CPU rendezvous */
74
75/* functions in x86_mp.c */
76void	assign_cpu_ids(void);
77void	cpu_add(u_int apic_id, char boot_cpu);
78void	cpustop_handler(void);
79void	cpususpend_handler(void);
80void	init_secondary_tail(void);
81void	invltlb_handler(void);
82void	invlpg_handler(void);
83void	invlrng_handler(void);
84void	invlcache_handler(void);
85void	init_secondary(void);
86void	ipi_startup(int apic_id, int vector);
87void	ipi_all_but_self(u_int ipi);
88void 	ipi_bitmap_handler(struct trapframe frame);
89void	ipi_cpu(int cpu, u_int ipi);
90int	ipi_nmi_handler(void);
91void	ipi_selected(cpuset_t cpus, u_int ipi);
92u_int	mp_bootaddress(u_int);
93void	set_interrupt_apic_ids(void);
94void	smp_cache_flush(void);
95void	smp_masked_invlpg(cpuset_t mask, vm_offset_t addr);
96void	smp_masked_invlpg_range(cpuset_t mask, vm_offset_t startva,
97	    vm_offset_t endva);
98void	smp_masked_invltlb(cpuset_t mask, struct pmap *pmap);
99void	mem_range_AP_init(void);
100void	topo_probe(void);
101void	ipi_send_cpu(int cpu, u_int ipi);
102
103#endif
104