xref: /freebsd/sys/x86/include/x86_smp.h (revision 2f513db72b034fd5ef7f080b11be5c711c15186a)
1 /*-
2  * SPDX-License-Identifier: Beerware
3  *
4  * ----------------------------------------------------------------------------
5  * "THE BEER-WARE LICENSE" (Revision 42):
6  * <phk@FreeBSD.org> wrote this file.  As long as you retain this notice you
7  * can do whatever you want with this stuff. If we meet some day, and you think
8  * this stuff is worth it, you can buy me a beer in return.   Poul-Henning Kamp
9  * ----------------------------------------------------------------------------
10  *
11  * $FreeBSD$
12  *
13  */
14 
15 #ifndef _X86_X86_SMP_H_
16 #define	_X86_X86_SMP_H_
17 
18 #include <sys/bus.h>
19 #include <machine/frame.h>
20 #include <machine/intr_machdep.h>
21 #include <x86/apicvar.h>
22 #include <machine/pcb.h>
23 
24 struct pmap;
25 
26 /* global data in mp_x86.c */
27 extern int mp_naps;
28 extern int boot_cpu_id;
29 extern struct pcb stoppcbs[];
30 extern int cpu_apic_ids[];
31 extern int bootAP;
32 extern void *dpcpu;
33 extern char *bootSTK;
34 extern void *bootstacks[];
35 extern unsigned int boot_address;
36 extern unsigned int bootMP_size;
37 extern volatile int aps_ready;
38 extern struct mtx ap_boot_mtx;
39 extern int cpu_logical;
40 extern int cpu_cores;
41 extern volatile uint32_t smp_tlb_generation;
42 extern struct pmap *smp_tlb_pmap;
43 extern vm_offset_t smp_tlb_addr1, smp_tlb_addr2;
44 extern u_int xhits_gbl[];
45 extern u_int xhits_pg[];
46 extern u_int xhits_rng[];
47 extern u_int ipi_global;
48 extern u_int ipi_page;
49 extern u_int ipi_range;
50 extern u_int ipi_range_size;
51 
52 extern int nmi_kdb_lock;
53 extern int nmi_is_broadcast;
54 
55 struct cpu_info {
56 	int	cpu_present:1;
57 	int	cpu_bsp:1;
58 	int	cpu_disabled:1;
59 	int	cpu_hyperthread:1;
60 };
61 extern struct cpu_info *cpu_info;
62 
63 /*
64  * Set if MWAIT does not reliably wake when the MONITORed address is written.
65  */
66 extern bool mwait_cpustop_broken;
67 
68 #ifdef COUNT_IPIS
69 extern u_long *ipi_invltlb_counts[MAXCPU];
70 extern u_long *ipi_invlrng_counts[MAXCPU];
71 extern u_long *ipi_invlpg_counts[MAXCPU];
72 extern u_long *ipi_invlcache_counts[MAXCPU];
73 extern u_long *ipi_rendezvous_counts[MAXCPU];
74 #endif
75 
76 /* IPI handlers */
77 inthand_t
78 	IDTVEC(invltlb),	/* TLB shootdowns - global */
79 	IDTVEC(invlpg),		/* TLB shootdowns - 1 page */
80 	IDTVEC(invlrng),	/* TLB shootdowns - page range */
81 	IDTVEC(invlcache),	/* Write back and invalidate cache */
82 	IDTVEC(ipi_intr_bitmap_handler), /* Bitmap based IPIs */
83 	IDTVEC(cpustop),	/* CPU stops & waits to be restarted */
84 	IDTVEC(cpususpend),	/* CPU suspends & waits to be resumed */
85 	IDTVEC(rendezvous);	/* handle CPU rendezvous */
86 
87 /* functions in x86_mp.c */
88 void	assign_cpu_ids(void);
89 void	cpu_add(u_int apic_id, char boot_cpu);
90 void	cpustop_handler(void);
91 void	cpususpend_handler(void);
92 void	alloc_ap_trampoline(vm_paddr_t *physmap, unsigned int *physmap_idx);
93 void	init_secondary_tail(void);
94 void	invltlb_handler(void);
95 void	invlpg_handler(void);
96 void	invlrng_handler(void);
97 void	invlcache_handler(void);
98 void	init_secondary(void);
99 void	ipi_startup(int apic_id, int vector);
100 void	ipi_all_but_self(u_int ipi);
101 void 	ipi_bitmap_handler(struct trapframe frame);
102 void	ipi_cpu(int cpu, u_int ipi);
103 int	ipi_nmi_handler(void);
104 void	ipi_selected(cpuset_t cpus, u_int ipi);
105 void	set_interrupt_apic_ids(void);
106 void	smp_cache_flush(void);
107 void	smp_masked_invlpg(cpuset_t mask, vm_offset_t addr, struct pmap *pmap);
108 void	smp_masked_invlpg_range(cpuset_t mask, vm_offset_t startva,
109 	    vm_offset_t endva, struct pmap *pmap);
110 void	smp_masked_invltlb(cpuset_t mask, struct pmap *pmap);
111 void	mem_range_AP_init(void);
112 void	topo_probe(void);
113 void	ipi_send_cpu(int cpu, u_int ipi);
114 
115 #endif
116