smp.h revision 282274 
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 282274 2015-04-30 15:48:48Z jhb $
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 <x86/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[];
39extern int bootAP;
40extern void *dpcpu;
41extern char *bootSTK;
42extern int bootAP;
43extern void *bootstacks[];
44extern volatile u_int cpu_ipi_pending[];
45extern volatile int aps_ready;
46extern struct mtx ap_boot_mtx;
47extern int cpu_logical;
48extern int cpu_cores;
49extern volatile int smp_tlb_wait;
50extern u_int xhits_gbl[];
51extern u_int xhits_pg[];
52extern u_int xhits_rng[];
53extern u_int ipi_global;
54extern u_int ipi_page;
55extern u_int ipi_range;
56extern u_int ipi_range_size;
57extern u_int ipi_masked_global;
58extern u_int ipi_masked_page;
59extern u_int ipi_masked_range;
60extern u_int ipi_masked_range_size;
61
62struct cpu_info {
63	int	cpu_present:1;
64	int	cpu_bsp:1;
65	int	cpu_disabled:1;
66	int	cpu_hyperthread:1;
67};
68extern struct cpu_info cpu_info[];
69
70#ifdef COUNT_IPIS
71extern u_long *ipi_invltlb_counts[MAXCPU];
72extern u_long *ipi_invlrng_counts[MAXCPU];
73extern u_long *ipi_invlpg_counts[MAXCPU];
74extern u_long *ipi_invlcache_counts[MAXCPU];
75extern u_long *ipi_rendezvous_counts[MAXCPU];
76#endif
77
78/* IPI handlers */
79inthand_t
80	IDTVEC(invltlb),	/* TLB shootdowns - global */
81	IDTVEC(invlpg),		/* TLB shootdowns - 1 page */
82	IDTVEC(invlrng),	/* TLB shootdowns - page range */
83	IDTVEC(invlcache),	/* Write back and invalidate cache */
84	IDTVEC(ipi_intr_bitmap_handler), /* Bitmap based IPIs */
85	IDTVEC(cpustop),	/* CPU stops & waits to be restarted */
86	IDTVEC(cpususpend),	/* CPU suspends & waits to be resumed */
87	IDTVEC(rendezvous);	/* handle CPU rendezvous */
88
89/* functions in mp_machdep.c */
90void	assign_cpu_ids(void);
91void	cpu_add(u_int apic_id, char boot_cpu);
92void	cpustop_handler(void);
93void	cpususpend_handler(void);
94void	init_secondary_tail(void);
95void	invltlb_handler(void);
96void	invlpg_handler(void);
97void	invlrng_handler(void);
98void	invlcache_handler(void);
99void	init_secondary(void);
100void	ipi_startup(int apic_id, int vector);
101void	ipi_all_but_self(u_int ipi);
102void 	ipi_bitmap_handler(struct trapframe frame);
103void	ipi_cpu(int cpu, u_int ipi);
104int	ipi_nmi_handler(void);
105void	ipi_selected(cpuset_t cpus, u_int ipi);
106u_int	mp_bootaddress(u_int);
107void	set_interrupt_apic_ids(void);
108void	smp_cache_flush(void);
109void	smp_invlpg(vm_offset_t addr);
110void	smp_masked_invlpg(cpuset_t mask, vm_offset_t addr);
111void	smp_invlpg_range(vm_offset_t startva, vm_offset_t endva);
112void	smp_masked_invlpg_range(cpuset_t mask, vm_offset_t startva,
113	    vm_offset_t endva);
114void	smp_invltlb(void);
115void	smp_masked_invltlb(cpuset_t mask);
116void	mem_range_AP_init(void);
117void	topo_probe(void);
118void	ipi_send_cpu(int cpu, u_int ipi);
119
120#endif /* !LOCORE */
121#endif /* SMP */
122
123#endif /* _KERNEL */
124#endif /* _MACHINE_SMP_H_ */
125