smp.h revision 222813 
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: head/sys/i386/include/smp.h 222813 2011-06-07 08:46:13Z attilio $
10 *
11 */
12
13#ifndef _MACHINE_SMP_H_
14#define _MACHINE_SMP_H_
15
16#ifdef _KERNEL
17
18#ifdef SMP
19
20#ifndef LOCORE
21
22#include <sys/bus.h>
23#include <machine/frame.h>
24#include <machine/intr_machdep.h>
25#include <machine/apicvar.h>
26#include <machine/pcb.h>
27
28/* global data in mpboot.s */
29extern int			bootMP_size;
30
31/* functions in mpboot.s */
32void	bootMP(void);
33
34/* global data in mp_machdep.c */
35extern int			mp_naps;
36extern int			boot_cpu_id;
37extern struct pcb		stoppcbs[];
38extern int			cpu_apic_ids[];
39#ifdef COUNT_IPIS
40extern u_long *ipi_invltlb_counts[MAXCPU];
41extern u_long *ipi_invlrng_counts[MAXCPU];
42extern u_long *ipi_invlpg_counts[MAXCPU];
43extern u_long *ipi_invlcache_counts[MAXCPU];
44extern u_long *ipi_rendezvous_counts[MAXCPU];
45extern u_long *ipi_lazypmap_counts[MAXCPU];
46#endif
47
48/* IPI handlers */
49inthand_t
50	IDTVEC(invltlb),	/* TLB shootdowns - global */
51	IDTVEC(invlpg),		/* TLB shootdowns - 1 page */
52	IDTVEC(invlrng),	/* TLB shootdowns - page range */
53	IDTVEC(invlcache),	/* Write back and invalidate cache */
54	IDTVEC(ipi_intr_bitmap_handler), /* Bitmap based IPIs */
55	IDTVEC(cpustop),	/* CPU stops & waits to be restarted */
56	IDTVEC(rendezvous),	/* handle CPU rendezvous */
57	IDTVEC(lazypmap);	/* handle lazy pmap release */
58
59/* functions in mp_machdep.c */
60void	cpu_add(u_int apic_id, char boot_cpu);
61void	cpustop_handler(void);
62void	init_secondary(void);
63void	ipi_all_but_self(u_int ipi);
64#ifndef XEN
65void 	ipi_bitmap_handler(struct trapframe frame);
66#endif
67void	ipi_cpu(int cpu, u_int ipi);
68int	ipi_nmi_handler(void);
69void	ipi_selected(cpuset_t cpus, u_int ipi);
70u_int	mp_bootaddress(u_int);
71int	mp_grab_cpu_hlt(void);
72void	smp_cache_flush(void);
73void	smp_invlpg(vm_offset_t addr);
74void	smp_masked_invlpg(cpuset_t mask, vm_offset_t addr);
75void	smp_invlpg_range(vm_offset_t startva, vm_offset_t endva);
76void	smp_masked_invlpg_range(cpuset_t mask, vm_offset_t startva,
77	    vm_offset_t endva);
78void	smp_invltlb(void);
79void	smp_masked_invltlb(cpuset_t mask);
80
81#ifdef XEN
82void ipi_to_irq_init(void);
83
84#define RESCHEDULE_VECTOR	0
85#define CALL_FUNCTION_VECTOR	1
86#define NR_IPIS			2
87
88#endif
89#endif /* !LOCORE */
90#endif /* SMP */
91
92#endif /* _KERNEL */
93#endif /* _MACHINE_SMP_H_ */
94