smp.h revision 288131 
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/amd64/include/smp.h 288131 2015-09-22 21:07:47Z mjg $
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 symbols in mpboot.S */
29extern char			mptramp_start[];
30extern char			mptramp_end[];
31extern u_int32_t		mptramp_pagetables;
32
33/* global data in mp_machdep.c */
34extern int			mp_naps;
35extern int			boot_cpu_id;
36extern struct pcb		stoppcbs[];
37extern int			cpu_apic_ids[];
38extern void *dpcpu;
39extern char *bootSTK;
40extern int bootAP;
41extern void *bootstacks[];
42extern volatile u_int cpu_ipi_pending[];
43extern volatile int aps_ready;
44extern struct mtx ap_boot_mtx;
45extern int cpu_logical;
46extern int cpu_cores;
47extern int pmap_pcid_enabled;
48extern int invpcid_works;
49extern u_int xhits_gbl[];
50extern u_int xhits_pg[];
51extern u_int xhits_rng[];
52extern u_int ipi_global;
53extern u_int ipi_page;
54extern u_int ipi_range;
55extern u_int ipi_range_size;
56
57extern volatile int smp_tlb_wait;
58
59struct cpu_info {
60	int	cpu_present:1;
61	int	cpu_bsp:1;
62	int	cpu_disabled:1;
63	int	cpu_hyperthread:1;
64};
65extern struct cpu_info cpu_info[];
66
67#ifdef COUNT_IPIS
68extern u_long *ipi_invltlb_counts[MAXCPU];
69extern u_long *ipi_invlrng_counts[MAXCPU];
70extern u_long *ipi_invlpg_counts[MAXCPU];
71extern u_long *ipi_invlcache_counts[MAXCPU];
72extern u_long *ipi_rendezvous_counts[MAXCPU];
73#endif
74
75/* IPI handlers */
76inthand_t
77	IDTVEC(invltlb),	/* TLB shootdowns - global */
78	IDTVEC(invltlb_pcid),	/* TLB shootdowns - global, pcid */
79	IDTVEC(invltlb_invpcid),/* TLB shootdowns - global, invpcid */
80	IDTVEC(invlpg),		/* TLB shootdowns - 1 page */
81	IDTVEC(invlrng),	/* TLB shootdowns - page range */
82	IDTVEC(invlcache),	/* Write back and invalidate cache */
83	IDTVEC(ipi_intr_bitmap_handler), /* Bitmap based IPIs */
84	IDTVEC(cpustop),	/* CPU stops & waits to be restarted */
85	IDTVEC(cpususpend),	/* CPU suspends & waits to be resumed */
86	IDTVEC(justreturn),	/* interrupt CPU with minimum overhead */
87	IDTVEC(rendezvous);	/* handle CPU rendezvous */
88
89struct pmap;
90
91/* functions in mp_machdep.c */
92void	assign_cpu_ids(void);
93void	cpu_add(u_int apic_id, char boot_cpu);
94void	cpustop_handler(void);
95void	cpususpend_handler(void);
96void	init_secondary_tail(void);
97void	invltlb_handler(void);
98void	invltlb_pcid_handler(void);
99void	invltlb_invpcid_handler(void);
100void	invlpg_handler(void);
101void	invlrng_handler(void);
102void	invlcache_handler(void);
103void	init_secondary(void);
104void	ipi_startup(int apic_id, int vector);
105void	ipi_all_but_self(u_int ipi);
106void 	ipi_bitmap_handler(struct trapframe frame);
107void	ipi_cpu(int cpu, u_int ipi);
108int	ipi_nmi_handler(void);
109void	ipi_selected(cpuset_t cpus, u_int ipi);
110u_int	mp_bootaddress(u_int);
111void	set_interrupt_apic_ids(void);
112void	smp_cache_flush(void);
113void	smp_masked_invlpg(cpuset_t mask, vm_offset_t addr);
114void	smp_masked_invlpg_range(cpuset_t mask, vm_offset_t startva,
115	    vm_offset_t endva);
116void	smp_masked_invltlb(cpuset_t mask, struct pmap *pmap);
117int	native_start_all_aps(void);
118void	mem_range_AP_init(void);
119void	topo_probe(void);
120void	ipi_send_cpu(int cpu, u_int ipi);
121
122#endif /* !LOCORE */
123#endif /* SMP */
124
125#endif /* _KERNEL */
126#endif /* _MACHINE_SMP_H_ */
127