include/asm-x86_64/mpspec.h

   1 #ifndef __ASM_MPSPEC_H
   2 #define __ASM_MPSPEC_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 /*
  17  * A maximum of 255 APICs with the current APIC ID architecture.
  18  */
  19 #define MAX_APICS 255
  20
  21 struct intel_mp_floating
  22 {
  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)                   */
  33 };
  34
  35 struct mp_config_table
  36 {
  37         char mpc_signature[4];
  38 #define MPC_SIGNATURE "PCMP"
  39         unsigned short mpc_length;      /* Size of table */
  40         char  mpc_spec;                 /* 0x01 */
  41         char  mpc_checksum;
  42         char  mpc_oem[8];
  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;
  49 };
  50
  51 /* Followed by entries */
  52
  53 #define MP_PROCESSOR    0
  54 #define MP_BUS          1
  55 #define MP_IOAPIC       2
  56 #define MP_INTSRC       3
  57 #define MP_LINTSRC      4
  58
  59 struct mpc_config_processor
  60 {
  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];
  73 };
  74
  75 struct mpc_config_bus
  76 {
  77         unsigned char mpc_type;
  78         unsigned char mpc_busid;
  79         unsigned char mpc_bustype[6];
  80 };
  81
  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"
 101
 102 struct mpc_config_ioapic
 103 {
 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;
 110 };
 111
 112 struct mpc_config_intsrc
 113 {
 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;
 121 };
 122
 123 enum mp_irq_source_types {
 124         mp_INT = 0,
 125         mp_NMI = 1,
 126         mp_SMI = 2,
 127         mp_ExtINT = 3
 128 };
 129
 130 #define MP_IRQDIR_DEFAULT       0
 131 #define MP_IRQDIR_HIGH          1
 132 #define MP_IRQDIR_LOW           3
 133
 134
 135 struct mpc_config_lintsrc
 136 {
 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;
 145 };
 146
 147 /*
 148  *      Default configurations
 149  *
 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
 154  *      5       2 CPU ISA+PCI
 155  *      6       2 CPU EISA+PCI
 156  *      7       2 CPU MCA+PCI
 157  */
 158
 159 #define MAX_MP_BUSSES 256
 160 /* Each PCI slot may be a combo card with its own bus.  4 IRQ pins per slot. */
 161 #define MAX_IRQ_SOURCES (MAX_MP_BUSSES * 4)
 162 extern DECLARE_BITMAP(mp_bus_not_pci, MAX_MP_BUSSES);
 163 extern int mp_bus_id_to_pci_bus [MAX_MP_BUSSES];
 164
 165 extern unsigned int boot_cpu_physical_apicid;
 166 extern int smp_found_config;
 167 extern void find_smp_config (void);
 168 extern void get_smp_config (void);
 169 extern int nr_ioapics;
 170 extern unsigned char apic_version [MAX_APICS];
 171 extern int mp_irq_entries;
 172 extern struct mpc_config_intsrc mp_irqs [MAX_IRQ_SOURCES];
 173 extern int mpc_default_type;
 174 extern unsigned long mp_lapic_addr;
 175
 176 #ifdef CONFIG_ACPI
 177 extern void mp_register_lapic (u8 id, u8 enabled);
 178 extern void mp_register_lapic_address (u64 address);
 179
 180 extern void mp_register_ioapic (u8 id, u32 address, u32 gsi_base);
 181 extern void mp_override_legacy_irq (u8 bus_irq, u8 polarity, u8 trigger, u32 gsi);
 182 extern void mp_config_acpi_legacy_irqs (void);
 183 extern int mp_register_gsi (u32 gsi, int triggering, int polarity);
 184 #endif
 185
 186 extern int using_apic_timer;
 187
 188 #define PHYSID_ARRAY_SIZE       BITS_TO_LONGS(MAX_APICS)
 189
 190 struct physid_mask
 191 {
 192         unsigned long mask[PHYSID_ARRAY_SIZE];
 193 };
 194
 195 typedef struct physid_mask physid_mask_t;
 196
 197 #define physid_set(physid, map)                 set_bit(physid, (map).mask)
 198 #define physid_clear(physid, map)               clear_bit(physid, (map).mask)
 199 #define physid_isset(physid, map)               test_bit(physid, (map).mask)
 200 #define physid_test_and_set(physid, map)        test_and_set_bit(physid, (map).mask)
 201
 202 #define physids_and(dst, src1, src2)            bitmap_and((dst).mask, (src1).mask, (src2).mask, MAX_APICS)
 203 #define physids_or(dst, src1, src2)             bitmap_or((dst).mask, (src1).mask, (src2).mask, MAX_APICS)
 204 #define physids_clear(map)                      bitmap_zero((map).mask, MAX_APICS)
 205 #define physids_complement(dst, src)            bitmap_complement((dst).mask, (src).mask, MAX_APICS)
 206 #define physids_empty(map)                      bitmap_empty((map).mask, MAX_APICS)
 207 #define physids_equal(map1, map2)               bitmap_equal((map1).mask, (map2).mask, MAX_APICS)
 208 #define physids_weight(map)                     bitmap_weight((map).mask, MAX_APICS)
 209 #define physids_shift_right(d, s, n)            bitmap_shift_right((d).mask, (s).mask, n, MAX_APICS)
 210 #define physids_shift_left(d, s, n)             bitmap_shift_left((d).mask, (s).mask, n, MAX_APICS)
 211 #define physids_coerce(map)                     ((map).mask[0])
 212
 213 #define physids_promote(physids)                                                \
 214         ({                                                                      \
 215                 physid_mask_t __physid_mask = PHYSID_MASK_NONE;                 \
 216                 __physid_mask.mask[0] = physids;                                \
 217                 __physid_mask;                                                  \
 218         })
 219
 220 #define physid_mask_of_physid(physid)                                           \
 221         ({                                                                      \
 222                 physid_mask_t __physid_mask = PHYSID_MASK_NONE;                 \
 223                 physid_set(physid, __physid_mask);                              \
 224                 __physid_mask;                                                  \
 225         })
 226
 227 #define PHYSID_MASK_ALL         { {[0 ... PHYSID_ARRAY_SIZE-1] = ~0UL} }
 228 #define PHYSID_MASK_NONE        { {[0 ... PHYSID_ARRAY_SIZE-1] = 0UL} }
 229
 230 extern physid_mask_t phys_cpu_present_map;
 231
 232 #endif
 233