xref: /freebsd/sys/amd64/include/smp.h (revision 1b6c76a2fe091c74f08427e6c870851025a9cf67)
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 #if defined(SMP) && defined(I386_CPU) && !defined(COMPILING_LINT)
19 #error SMP not supported with I386_CPU
20 #endif
21 #if defined(SMP) && !defined(APIC_IO)
22 # error APIC_IO required for SMP, add "options APIC_IO" to your config file.
23 #endif /* SMP && !APIC_IO */
24 
25 #if defined(SMP) || defined(APIC_IO)
26 
27 #ifndef LOCORE
28 
29 /*
30  * For sending values to POST displays.
31  * XXX FIXME: where does this really belong, isa.h/isa.c perhaps?
32  */
33 extern int current_postcode;  /** XXX currently in mp_machdep.c */
34 #define POSTCODE(X)	current_postcode = (X), \
35 			outb(0x80, current_postcode)
36 #define POSTCODE_LO(X)	current_postcode &= 0xf0, \
37 			current_postcode |= ((X) & 0x0f), \
38 			outb(0x80, current_postcode)
39 #define POSTCODE_HI(X)	current_postcode &= 0x0f, \
40 			current_postcode |= (((X) << 4) & 0xf0), \
41 			outb(0x80, current_postcode)
42 
43 
44 #include <sys/bus.h>	/* XXX */
45 #include <machine/apic.h>
46 #include <machine/frame.h>
47 #include <i386/isa/icu.h>
48 #include <i386/isa/intr_machdep.h>
49 
50 /*
51  * Interprocessor interrupts for SMP.
52  */
53 #define	IPI_INVLTLB		XINVLTLB_OFFSET
54 #define	IPI_RENDEZVOUS		XRENDEZVOUS_OFFSET
55 #define	IPI_AST			XCPUAST_OFFSET
56 #define	IPI_STOP		XCPUSTOP_OFFSET
57 #define	IPI_HARDCLOCK		XHARDCLOCK_OFFSET
58 #define	IPI_STATCLOCK		XSTATCLOCK_OFFSET
59 
60 /* global data in mpboot.s */
61 extern int			bootMP_size;
62 
63 /* functions in mpboot.s */
64 void	bootMP			__P((void));
65 
66 /* global data in mp_machdep.c */
67 extern int			bsp_apic_ready;
68 extern int			mp_naps;
69 extern int			mp_nbusses;
70 extern int			mp_napics;
71 extern int			mp_picmode;
72 extern int			boot_cpu_id;
73 extern vm_offset_t		cpu_apic_address;
74 extern vm_offset_t		io_apic_address[];
75 extern u_int32_t		cpu_apic_versions[];
76 extern u_int32_t		*io_apic_versions;
77 extern int			cpu_num_to_apic_id[];
78 extern int			io_num_to_apic_id[];
79 extern int			apic_id_to_logical[];
80 #define APIC_INTMAPSIZE 32
81 struct apic_intmapinfo {
82   	int ioapic;
83 	int int_pin;
84 	volatile void *apic_address;
85 	int redirindex;
86 };
87 extern struct apic_intmapinfo	int_to_apicintpin[];
88 extern struct pcb		stoppcbs[];
89 
90 /* functions in mp_machdep.c */
91 void	i386_mp_probe		__P((void));
92 u_int	mp_bootaddress		__P((u_int));
93 u_int	isa_apic_mask		__P((u_int));
94 int	isa_apic_irq		__P((int));
95 int	pci_apic_irq		__P((int, int, int));
96 int	apic_irq		__P((int, int));
97 int	next_apic_irq		__P((int));
98 int	undirect_isa_irq	__P((int));
99 int	undirect_pci_irq	__P((int));
100 int	apic_bus_type		__P((int));
101 int	apic_src_bus_id		__P((int, int));
102 int	apic_src_bus_irq	__P((int, int));
103 int	apic_int_type		__P((int, int));
104 int	apic_trigger		__P((int, int));
105 int	apic_polarity		__P((int, int));
106 void	assign_apic_irq		__P((int apic, int intpin, int irq));
107 void	revoke_apic_irq		__P((int irq));
108 void	bsp_apic_configure	__P((void));
109 void	init_secondary		__P((void));
110 void	smp_invltlb		__P((void));
111 void	forward_statclock	__P((void));
112 void	forwarded_statclock	__P((struct trapframe frame));
113 void	forward_hardclock	__P((void));
114 void	forwarded_hardclock	__P((struct trapframe frame));
115 void	ipi_selected		__P((u_int cpus, u_int ipi));
116 void	ipi_all			__P((u_int ipi));
117 void	ipi_all_but_self	__P((u_int ipi));
118 void	ipi_self		__P((u_int ipi));
119 #ifdef	APIC_INTR_REORDER
120 void	set_lapic_isrloc	__P((int, int));
121 #endif /* APIC_INTR_REORDER */
122 
123 /* global data in mpapic.c */
124 extern volatile lapic_t		lapic;
125 extern volatile ioapic_t	**ioapic;
126 
127 /* functions in mpapic.c */
128 void	apic_dump		__P((char*));
129 void	apic_initialize		__P((void));
130 void	imen_dump		__P((void));
131 int	apic_ipi		__P((int, int, int));
132 int	selected_apic_ipi	__P((u_int, int, int));
133 int	io_apic_setup		__P((int));
134 void	io_apic_setup_intpin	__P((int, int));
135 void	io_apic_set_id		__P((int, int));
136 int	io_apic_get_id		__P((int));
137 int	ext_int_setup		__P((int, int));
138 
139 void	set_apic_timer		__P((int));
140 int	read_apic_timer		__P((void));
141 void	u_sleep			__P((int));
142 u_int	io_apic_read		__P((int, int));
143 void	io_apic_write		__P((int, int, u_int));
144 
145 
146 /* global data in init_smp.c */
147 extern int			invltlb_ok;
148 extern volatile int		smp_idle_loops;
149 
150 #endif /* !LOCORE */
151 #endif /* SMP && !APIC_IO */
152 
153 #endif /* _KERNEL */
154 #endif /* _MACHINE_SMP_H_ */
155