xref: /freebsd/sys/i386/include/smp.h (revision 4a5216a6dc0c3ce4cf5f2d3ee8af0c3ff3402c4f)
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  * $FreeBSD$
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 */
29 extern int			bootMP_size;
30 
31 /* functions in mpboot.s */
32 void	bootMP(void);
33 
34 /* global data in mp_machdep.c */
35 extern int			mp_naps;
36 extern int			boot_cpu_id;
37 extern struct pcb		stoppcbs[];
38 extern int			cpu_apic_ids[];
39 #ifdef COUNT_IPIS
40 extern u_long *ipi_invltlb_counts[MAXCPU];
41 extern u_long *ipi_invlrng_counts[MAXCPU];
42 extern u_long *ipi_invlpg_counts[MAXCPU];
43 extern u_long *ipi_invlcache_counts[MAXCPU];
44 extern u_long *ipi_rendezvous_counts[MAXCPU];
45 extern u_long *ipi_lazypmap_counts[MAXCPU];
46 #endif
47 
48 /* global data in identcpu.c */
49 extern int			cpu_cores;
50 extern int			cpu_logical;
51 
52 /* IPI handlers */
53 inthand_t
54 	IDTVEC(invltlb),	/* TLB shootdowns - global */
55 	IDTVEC(invlpg),		/* TLB shootdowns - 1 page */
56 	IDTVEC(invlrng),	/* TLB shootdowns - page range */
57 	IDTVEC(invlcache),	/* Write back and invalidate cache */
58 	IDTVEC(ipi_intr_bitmap_handler), /* Bitmap based IPIs */
59 	IDTVEC(cpustop),	/* CPU stops & waits to be restarted */
60 	IDTVEC(rendezvous),	/* handle CPU rendezvous */
61 	IDTVEC(lazypmap);	/* handle lazy pmap release */
62 
63 /* functions in mp_machdep.c */
64 void	cpu_add(u_int apic_id, char boot_cpu);
65 void	cpustop_handler(void);
66 void	init_secondary(void);
67 void	ipi_selected(u_int cpus, u_int ipi);
68 void	ipi_all_but_self(u_int ipi);
69 void 	ipi_bitmap_handler(struct trapframe frame);
70 u_int	mp_bootaddress(u_int);
71 int	mp_grab_cpu_hlt(void);
72 void	smp_cache_flush(void);
73 void	smp_invlpg(vm_offset_t addr);
74 void	smp_masked_invlpg(u_int mask, vm_offset_t addr);
75 void	smp_invlpg_range(vm_offset_t startva, vm_offset_t endva);
76 void	smp_masked_invlpg_range(u_int mask, vm_offset_t startva,
77 	    vm_offset_t endva);
78 void	smp_invltlb(void);
79 void	smp_masked_invltlb(u_int mask);
80 
81 #ifdef STOP_NMI
82 int	ipi_nmi_handler(void);
83 #endif
84 #ifdef XEN
85 void ipi_to_irq_init(void);
86 #endif
87 #endif /* !LOCORE */
88 #endif /* SMP */
89 
90 #endif /* _KERNEL */
91 #endif /* _MACHINE_SMP_H_ */
92