smp.h revision 99862 
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 99862 2002-07-12 07:56:11Z peter $
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 */
33extern 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_INVLPG		XINVLPG_OFFSET
55#define	IPI_INVLRNG		XINVLRNG_OFFSET
56#define	IPI_RENDEZVOUS		XRENDEZVOUS_OFFSET
57#define	IPI_AST			XCPUAST_OFFSET
58#define	IPI_STOP		XCPUSTOP_OFFSET
59#define	IPI_HARDCLOCK		XHARDCLOCK_OFFSET
60#define	IPI_STATCLOCK		XSTATCLOCK_OFFSET
61
62/* global data in mpboot.s */
63extern int			bootMP_size;
64
65/* functions in mpboot.s */
66void	bootMP(void);
67
68/* global data in mp_machdep.c */
69extern int			bsp_apic_ready;
70extern int			mp_naps;
71extern int			mp_nbusses;
72extern int			mp_napics;
73extern int			mp_picmode;
74extern int			boot_cpu_id;
75extern vm_offset_t		cpu_apic_address;
76extern vm_offset_t		io_apic_address[];
77extern u_int32_t		cpu_apic_versions[];
78extern u_int32_t		*io_apic_versions;
79extern int			cpu_num_to_apic_id[];
80extern int			io_num_to_apic_id[];
81extern int			apic_id_to_logical[];
82#define APIC_INTMAPSIZE 32
83struct apic_intmapinfo {
84  	int ioapic;
85	int int_pin;
86	volatile void *apic_address;
87	int redirindex;
88};
89extern struct apic_intmapinfo	int_to_apicintpin[];
90extern struct pcb		stoppcbs[];
91
92/* functions in mp_machdep.c */
93void	i386_mp_probe(void);
94u_int	mp_bootaddress(u_int);
95u_int	isa_apic_mask(u_int);
96int	isa_apic_irq(int);
97int	pci_apic_irq(int, int, int);
98int	apic_irq(int, int);
99int	next_apic_irq(int);
100int	undirect_isa_irq(int);
101int	undirect_pci_irq(int);
102int	apic_bus_type(int);
103int	apic_src_bus_id(int, int);
104int	apic_src_bus_irq(int, int);
105int	apic_int_type(int, int);
106int	apic_trigger(int, int);
107int	apic_polarity(int, int);
108void	assign_apic_irq(int apic, int intpin, int irq);
109void	revoke_apic_irq(int irq);
110void	bsp_apic_configure(void);
111void	init_secondary(void);
112void	forward_statclock(void);
113void	forwarded_statclock(struct trapframe frame);
114void	forward_hardclock(void);
115void	forwarded_hardclock(struct trapframe frame);
116void	ipi_selected(u_int cpus, u_int ipi);
117void	ipi_all(u_int ipi);
118void	ipi_all_but_self(u_int ipi);
119void	ipi_self(u_int ipi);
120#ifdef	APIC_INTR_REORDER
121void	set_lapic_isrloc(int, int);
122#endif /* APIC_INTR_REORDER */
123void	smp_invlpg(vm_offset_t addr);
124void	smp_masked_invlpg(u_int mask, vm_offset_t addr);
125void	smp_invlpg_range(vm_offset_t startva, vm_offset_t endva);
126void	smp_masked_invlpg_range(u_int mask, vm_offset_t startva,
127	    vm_offset_t endva);
128void	smp_invltlb(void);
129void	smp_masked_invltlb(u_int mask);
130
131/* global data in mpapic.c */
132extern volatile lapic_t		lapic;
133extern volatile ioapic_t	**ioapic;
134
135/* functions in mpapic.c */
136void	apic_dump(char*);
137void	apic_initialize(void);
138void	imen_dump(void);
139int	apic_ipi(int, int, int);
140int	selected_apic_ipi(u_int, int, int);
141int	io_apic_setup(int);
142void	io_apic_setup_intpin(int, int);
143void	io_apic_set_id(int, int);
144int	io_apic_get_id(int);
145int	ext_int_setup(int, int);
146
147void	set_apic_timer(int);
148int	read_apic_timer(void);
149void	u_sleep(int);
150u_int	io_apic_read(int, int);
151void	io_apic_write(int, int, u_int);
152
153#endif /* !LOCORE */
154#endif /* SMP && !APIC_IO */
155
156#endif /* _KERNEL */
157#endif /* _MACHINE_SMP_H_ */
158