5 * Structure definitions for SMP machines following the
6 * Intel Multiprocessing Specification 1.1 and 1.4.
10 * This tag identifies where the SMP configuration
14 #define SMP_MAGIC_IDENT (('_'<<24)|('P'<<16)|('M'<<8)|'_')
17 * a maximum of 16 APICs with the current APIC ID architecture.
21 struct intel_mp_floating
23 char mpf_signature[4]; /* "_MP_" */
24 unsigned int mpf_physptr; /* Configuration table address */
25 unsigned char mpf_length; /* Our length (paragraphs) */
26 unsigned char mpf_specification;/* Specification version */
27 unsigned char mpf_checksum; /* Checksum (makes sum 0) */
28 unsigned char mpf_feature1; /* Standard or configuration ? */
29 unsigned char mpf_feature2; /* Bit7 set for IMCR|PIC */
30 unsigned char mpf_feature3; /* Unused (0) */
31 unsigned char mpf_feature4; /* Unused (0) */
32 unsigned char mpf_feature5; /* Unused (0) */
35 struct mp_config_table
37 char mpc_signature[4];
38 #define MPC_SIGNATURE "PCMP"
39 unsigned short mpc_length; /* Size of table */
40 char mpc_spec; /* 0x01 */
43 char mpc_productid[12];
44 unsigned int mpc_oemptr; /* 0 if not present */
45 unsigned short mpc_oemsize; /* 0 if not present */
46 unsigned short mpc_oemcount;
47 unsigned int mpc_lapic; /* APIC address */
48 unsigned int reserved;
51 /* Followed by entries */
53 #define MP_PROCESSOR 0
59 struct mpc_config_processor
61 unsigned char mpc_type;
62 unsigned char mpc_apicid; /* Local APIC number */
63 unsigned char mpc_apicver; /* Its versions */
64 unsigned char mpc_cpuflag;
65 #define CPU_ENABLED 1 /* Processor is available */
66 #define CPU_BOOTPROCESSOR 2 /* Processor is the BP */
67 unsigned int mpc_cpufeature;
68 #define CPU_STEPPING_MASK 0x0F
69 #define CPU_MODEL_MASK 0xF0
70 #define CPU_FAMILY_MASK 0xF00
71 unsigned int mpc_featureflag; /* CPUID feature value */
72 unsigned int mpc_reserved[2];
77 unsigned char mpc_type;
78 unsigned char mpc_busid;
79 unsigned char mpc_bustype[6];
82 /* List of Bus Type string values, Intel MP Spec. */
83 #define BUSTYPE_EISA "EISA"
84 #define BUSTYPE_ISA "ISA"
85 #define BUSTYPE_INTERN "INTERN" /* Internal BUS */
86 #define BUSTYPE_MCA "MCA"
87 #define BUSTYPE_VL "VL" /* Local bus */
88 #define BUSTYPE_PCI "PCI"
89 #define BUSTYPE_PCMCIA "PCMCIA"
90 #define BUSTYPE_CBUS "CBUS"
91 #define BUSTYPE_CBUSII "CBUSII"
92 #define BUSTYPE_FUTURE "FUTURE"
93 #define BUSTYPE_MBI "MBI"
94 #define BUSTYPE_MBII "MBII"
95 #define BUSTYPE_MPI "MPI"
96 #define BUSTYPE_MPSA "MPSA"
97 #define BUSTYPE_NUBUS "NUBUS"
98 #define BUSTYPE_TC "TC"
99 #define BUSTYPE_VME "VME"
100 #define BUSTYPE_XPRESS "XPRESS"
102 struct mpc_config_ioapic
104 unsigned char mpc_type;
105 unsigned char mpc_apicid;
106 unsigned char mpc_apicver;
107 unsigned char mpc_flags;
108 #define MPC_APIC_USABLE 0x01
109 unsigned int mpc_apicaddr;
112 struct mpc_config_intsrc
114 unsigned char mpc_type;
115 unsigned char mpc_irqtype;
116 unsigned short mpc_irqflag;
117 unsigned char mpc_srcbus;
118 unsigned char mpc_srcbusirq;
119 unsigned char mpc_dstapic;
120 unsigned char mpc_dstirq;
123 enum mp_irq_source_types {
130 #define MP_IRQDIR_DEFAULT 0
131 #define MP_IRQDIR_HIGH 1
132 #define MP_IRQDIR_LOW 3
135 struct mpc_config_lintsrc
137 unsigned char mpc_type;
138 unsigned char mpc_irqtype;
139 unsigned short mpc_irqflag;
140 unsigned char mpc_srcbusid;
141 unsigned char mpc_srcbusirq;
142 unsigned char mpc_destapic;
143 #define MP_APIC_ALL 0xFF
144 unsigned char mpc_destapiclint;
148 * Default configurations
150 * 1 2 CPU ISA 82489DX
151 * 2 2 CPU EISA 82489DX neither IRQ 0 timer nor IRQ 13 DMA chaining
152 * 3 2 CPU EISA 82489DX
153 * 4 2 CPU MCA 82489DX
159 #define MAX_MP_BUSSES 257
160 #define MAX_IRQ_SOURCES (MAX_MP_BUSSES*4)
167 extern int mp_bus_id_to_type [MAX_MP_BUSSES];
168 extern int mp_bus_id_to_node [MAX_MP_BUSSES];
169 extern int mp_bus_id_to_local [MAX_MP_BUSSES];
170 extern int quad_local_to_mp_bus_id [NR_CPUS/4][4];
171 extern int mp_bus_id_to_pci_bus [MAX_MP_BUSSES];
173 extern unsigned int boot_cpu_physical_apicid;
174 extern unsigned long phys_cpu_present_map;
175 extern int smp_found_config;
176 extern void find_smp_config (void);
177 extern void get_smp_config (void);
178 extern int nr_ioapics;
179 extern int apic_version [MAX_APICS];
180 extern int mp_bus_id_to_type [MAX_MP_BUSSES];
181 extern int mp_irq_entries;
182 extern struct mpc_config_intsrc mp_irqs [MAX_IRQ_SOURCES];
183 extern int mpc_default_type;
184 extern int mp_bus_id_to_pci_bus [MAX_MP_BUSSES];
185 extern int mp_current_pci_id;
186 extern unsigned long mp_lapic_addr;
188 extern int using_apic_timer;
191 #ifdef CONFIG_ACPI_BOOT
192 extern void mp_register_lapic (u8 id, u8 enabled);
193 extern void mp_register_lapic_address (u64 address);
195 #ifdef CONFIG_X86_IO_APIC
196 extern void mp_register_ioapic (u8 id, u32 address, u32 irq_base);
197 extern void mp_override_legacy_irq (u8 bus_irq, u8 polarity, u8 trigger, u32 global_irq);
198 extern void mp_config_acpi_legacy_irqs (void);
199 extern void mp_parse_prt (void);
200 #endif /*CONFIG_X86_IO_APIC*/
202 #endif /*CONFIG_ACPI_BOOT*/