FreeBSD/Linux Kernel Cross Reference
sys/i386/include/smp.h
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: releng/5.0/sys/i386/include/smp.h 105347 2002-10-17 18:17:28Z pirzyk $
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 #if defined(SMP) && defined(CPU_DISABLE_CMPXCHG) && !defined(COMPILING_LINT)
25 #error SMP not supported with CPU_DISABLE_CMPXCHG
26 #endif
27
28 #if defined(SMP) || defined(APIC_IO)
29
30 #ifndef LOCORE
31
32 /*
33 * For sending values to POST displays.
34 * XXX FIXME: where does this really belong, isa.h/isa.c perhaps?
35 */
36 extern int current_postcode; /** XXX currently in mp_machdep.c */
37 #define POSTCODE(X) current_postcode = (X), \
38 outb(0x80, current_postcode)
39 #define POSTCODE_LO(X) current_postcode &= 0xf0, \
40 current_postcode |= ((X) & 0x0f), \
41 outb(0x80, current_postcode)
42 #define POSTCODE_HI(X) current_postcode &= 0x0f, \
43 current_postcode |= (((X) << 4) & 0xf0), \
44 outb(0x80, current_postcode)
45
46
47 #include <sys/bus.h> /* XXX */
48 #include <machine/apic.h>
49 #include <machine/frame.h>
50 #include <i386/isa/icu.h>
51 #include <i386/isa/intr_machdep.h>
52
53 /*
54 * Interprocessor interrupts for SMP.
55 */
56 #define IPI_INVLTLB XINVLTLB_OFFSET
57 #define IPI_INVLPG XINVLPG_OFFSET
58 #define IPI_INVLRNG XINVLRNG_OFFSET
59 #define IPI_RENDEZVOUS XRENDEZVOUS_OFFSET
60 #define IPI_AST XCPUAST_OFFSET
61 #define IPI_STOP XCPUSTOP_OFFSET
62 #define IPI_HARDCLOCK XHARDCLOCK_OFFSET
63 #define IPI_STATCLOCK XSTATCLOCK_OFFSET
64
65 /* global data in mpboot.s */
66 extern int bootMP_size;
67
68 /* functions in mpboot.s */
69 void bootMP(void);
70
71 /* global data in mp_machdep.c */
72 extern int bsp_apic_ready;
73 extern int mp_naps;
74 extern int mp_nbusses;
75 extern int mp_napics;
76 extern int mp_picmode;
77 extern int boot_cpu_id;
78 extern vm_offset_t cpu_apic_address;
79 extern vm_offset_t io_apic_address[];
80 extern u_int32_t cpu_apic_versions[];
81 extern u_int32_t *io_apic_versions;
82 extern int cpu_num_to_apic_id[];
83 extern int io_num_to_apic_id[];
84 extern int apic_id_to_logical[];
85 #define APIC_INTMAPSIZE 32
86 struct apic_intmapinfo {
87 int ioapic;
88 int int_pin;
89 volatile void *apic_address;
90 int redirindex;
91 };
92 extern struct apic_intmapinfo int_to_apicintpin[];
93 extern struct pcb stoppcbs[];
94
95 /* functions in mp_machdep.c */
96 void i386_mp_probe(void);
97 u_int mp_bootaddress(u_int);
98 u_int isa_apic_mask(u_int);
99 int isa_apic_irq(int);
100 int pci_apic_irq(int, int, int);
101 int apic_irq(int, int);
102 int next_apic_irq(int);
103 int undirect_isa_irq(int);
104 int undirect_pci_irq(int);
105 int apic_bus_type(int);
106 int apic_src_bus_id(int, int);
107 int apic_src_bus_irq(int, int);
108 int apic_int_type(int, int);
109 int apic_trigger(int, int);
110 int apic_polarity(int, int);
111 void assign_apic_irq(int apic, int intpin, int irq);
112 void revoke_apic_irq(int irq);
113 void bsp_apic_configure(void);
114 void init_secondary(void);
115 void forward_statclock(void);
116 void forwarded_statclock(struct trapframe frame);
117 void forward_hardclock(void);
118 void forwarded_hardclock(struct trapframe frame);
119 void ipi_selected(u_int cpus, u_int ipi);
120 void ipi_all(u_int ipi);
121 void ipi_all_but_self(u_int ipi);
122 void ipi_self(u_int ipi);
123 #ifdef APIC_INTR_REORDER
124 void set_lapic_isrloc(int, int);
125 #endif /* APIC_INTR_REORDER */
126 void smp_invlpg(vm_offset_t addr);
127 void smp_masked_invlpg(u_int mask, vm_offset_t addr);
128 void smp_invlpg_range(vm_offset_t startva, vm_offset_t endva);
129 void smp_masked_invlpg_range(u_int mask, vm_offset_t startva,
130 vm_offset_t endva);
131 void smp_invltlb(void);
132 void smp_masked_invltlb(u_int mask);
133
134 /* global data in mpapic.c */
135 extern volatile lapic_t lapic;
136 extern volatile ioapic_t **ioapic;
137
138 /* functions in mpapic.c */
139 void apic_dump(char*);
140 void apic_initialize(void);
141 void imen_dump(void);
142 int apic_ipi(int, int, int);
143 int selected_apic_ipi(u_int, int, int);
144 int io_apic_setup(int);
145 void io_apic_setup_intpin(int, int);
146 void io_apic_set_id(int, int);
147 int io_apic_get_id(int);
148 int ext_int_setup(int, int);
149
150 void set_apic_timer(int);
151 int read_apic_timer(void);
152 void u_sleep(int);
153 u_int io_apic_read(int, int);
154 void io_apic_write(int, int, u_int);
155
156 #endif /* !LOCORE */
157 #endif /* SMP && !APIC_IO */
158
159 #endif /* _KERNEL */
160 #endif /* _MACHINE_SMP_H_ */
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