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1#ifndef ASM_X86__MPSPEC_DEF_H
2#define ASM_X86__MPSPEC_DEF_H
3
4/*
5 * Structure definitions for SMP machines following the
6 * Intel Multiprocessing Specification 1.1 and 1.4.
7 */
8
9/*
10 * This tag identifies where the SMP configuration
11 * information is.
12 */
13
14#define SMP_MAGIC_IDENT (('_'<<24) | ('P'<<16) | ('M'<<8) | '_')
15
16#ifdef CONFIG_X86_32
17# define MAX_MPC_ENTRY 1024
18# define MAX_APICS 256
19#else
20# if NR_CPUS <= 255
21# define MAX_APICS 255
22# else
23# define MAX_APICS 32768
24# endif
25#endif
26
27struct intel_mp_floating {
28 char mpf_signature[4]; /* "_MP_" */
29 unsigned int mpf_physptr; /* Configuration table address */
30 unsigned char mpf_length; /* Our length (paragraphs) */
31 unsigned char mpf_specification;/* Specification version */
32 unsigned char mpf_checksum; /* Checksum (makes sum 0) */
33 unsigned char mpf_feature1; /* Standard or configuration ? */
34 unsigned char mpf_feature2; /* Bit7 set for IMCR|PIC */
35 unsigned char mpf_feature3; /* Unused (0) */
36 unsigned char mpf_feature4; /* Unused (0) */
37 unsigned char mpf_feature5; /* Unused (0) */
38};
39
40#define MPC_SIGNATURE "PCMP"
41
42struct mp_config_table {
43 char mpc_signature[4];
44 unsigned short mpc_length; /* Size of table */
45 char mpc_spec; /* 0x01 */
46 char mpc_checksum;
47 char mpc_oem[8];
48 char mpc_productid[12];
49 unsigned int mpc_oemptr; /* 0 if not present */
50 unsigned short mpc_oemsize; /* 0 if not present */
51 unsigned short mpc_oemcount;
52 unsigned int mpc_lapic; /* APIC address */
53 unsigned int reserved;
54};
55
56/* Followed by entries */
57
58#define MP_PROCESSOR 0
59#define MP_BUS 1
60#define MP_IOAPIC 2
61#define MP_INTSRC 3
62#define MP_LINTSRC 4
63/* Used by IBM NUMA-Q to describe node locality */
64#define MP_TRANSLATION 192
65
66#define CPU_ENABLED 1 /* Processor is available */
67#define CPU_BOOTPROCESSOR 2 /* Processor is the BP */
68
69#define CPU_STEPPING_MASK 0x000F
70#define CPU_MODEL_MASK 0x00F0
71#define CPU_FAMILY_MASK 0x0F00
72
73struct mpc_config_processor {
74 unsigned char mpc_type;
75 unsigned char mpc_apicid; /* Local APIC number */
76 unsigned char mpc_apicver; /* Its versions */
77 unsigned char mpc_cpuflag;
78 unsigned int mpc_cpufeature;
79 unsigned int mpc_featureflag; /* CPUID feature value */
80 unsigned int mpc_reserved[2];
81};
82
83struct mpc_config_bus {
84 unsigned char mpc_type;
85 unsigned char mpc_busid;
86 unsigned char mpc_bustype[6];
87};
88
89/* List of Bus Type string values, Intel MP Spec. */
90#define BUSTYPE_EISA "EISA"
91#define BUSTYPE_ISA "ISA"
92#define BUSTYPE_INTERN "INTERN" /* Internal BUS */
93#define BUSTYPE_MCA "MCA"
94#define BUSTYPE_VL "VL" /* Local bus */
95#define BUSTYPE_PCI "PCI"
96#define BUSTYPE_PCMCIA "PCMCIA"
97#define BUSTYPE_CBUS "CBUS"
98#define BUSTYPE_CBUSII "CBUSII"
99#define BUSTYPE_FUTURE "FUTURE"
100#define BUSTYPE_MBI "MBI"
101#define BUSTYPE_MBII "MBII"
102#define BUSTYPE_MPI "MPI"
103#define BUSTYPE_MPSA "MPSA"
104#define BUSTYPE_NUBUS "NUBUS"
105#define BUSTYPE_TC "TC"
106#define BUSTYPE_VME "VME"
107#define BUSTYPE_XPRESS "XPRESS"
108
109#define MPC_APIC_USABLE 0x01
110
111struct mpc_config_ioapic {
112 unsigned char mpc_type;
113 unsigned char mpc_apicid;
114 unsigned char mpc_apicver;
115 unsigned char mpc_flags;
116 unsigned int mpc_apicaddr;
117};
118
119struct mpc_config_intsrc {
120 unsigned char mpc_type;
121 unsigned char mpc_irqtype;
122 unsigned short mpc_irqflag;
123 unsigned char mpc_srcbus;
124 unsigned char mpc_srcbusirq;
125 unsigned char mpc_dstapic;
126 unsigned char mpc_dstirq;
127};
128
129enum mp_irq_source_types {
130 mp_INT = 0,
131 mp_NMI = 1,
132 mp_SMI = 2,
133 mp_ExtINT = 3
134};
135
136#define MP_IRQDIR_DEFAULT 0
137#define MP_IRQDIR_HIGH 1
138#define MP_IRQDIR_LOW 3
139
140#define MP_APIC_ALL 0xFF
141
142struct mpc_config_lintsrc {
143 unsigned char mpc_type;
144 unsigned char mpc_irqtype;
145 unsigned short mpc_irqflag;
146 unsigned char mpc_srcbusid;
147 unsigned char mpc_srcbusirq;
148 unsigned char mpc_destapic;
149 unsigned char mpc_destapiclint;
150};
151
152#define MPC_OEM_SIGNATURE "_OEM"
153
154struct mp_config_oemtable {
155 char oem_signature[4];
156 unsigned short oem_length; /* Size of table */
157 char oem_rev; /* 0x01 */
158 char oem_checksum;
159 char mpc_oem[8];
160};
161
162/*
163 * Default configurations
164 *
165 * 1 2 CPU ISA 82489DX
166 * 2 2 CPU EISA 82489DX neither IRQ 0 timer nor IRQ 13 DMA chaining
167 * 3 2 CPU EISA 82489DX
168 * 4 2 CPU MCA 82489DX
169 * 5 2 CPU ISA+PCI
170 * 6 2 CPU EISA+PCI
171 * 7 2 CPU MCA+PCI
172 */
173
174enum mp_bustype {
175 MP_BUS_ISA = 1,
176 MP_BUS_EISA,
177 MP_BUS_PCI,
178 MP_BUS_MCA,
179};
180#endif /* ASM_X86__MPSPEC_DEF_H */