sys/platform/pc32/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: src/sys/i386/include/smp.h,v 1.50.2.5 2001/02/13 22:32:45 tegge Exp $
  10  * $DragonFly: src/sys/platform/pc32/include/smp.h,v 1.20 2006/11/07 06:43:24 dillon Exp $
  11  *
  12  */
  13
  14 #ifndef _MACHINE_SMP_H_
  15 #define _MACHINE_SMP_H_
  16
  17 #ifdef _KERNEL
  18
  19 #if defined(SMP)
  20
  21 #ifndef LOCORE
  22
  23 /*
  24  * For sending values to POST displays.
  25  * XXX FIXME: where does this really belong, isa.h/isa.c perhaps?
  26  */
  27 extern int current_postcode;  /** XXX currently in mp_machdep.c */
  28 #define POSTCODE(X)     current_postcode = (X), \
  29                         outb(0x80, current_postcode)
  30 #define POSTCODE_LO(X)  current_postcode &= 0xf0, \
  31                         current_postcode |= ((X) & 0x0f), \
  32                         outb(0x80, current_postcode)
  33 #define POSTCODE_HI(X)  current_postcode &= 0x0f, \
  34                         current_postcode |= (((X) << 4) & 0xf0), \
  35                         outb(0x80, current_postcode)
  36
  37
  38 #include <machine_base/apic/apicreg.h>
  39 #include <machine/pcb.h>
  40
  41 /* global data in mpboot.s */
  42 extern int                      bootMP_size;
  43
  44 /* functions in mpboot.s */
  45 void    bootMP                  (void);
  46
  47 /* global data in apic_vector.s */
  48 extern volatile u_int           stopped_cpus;
  49 extern volatile u_int           started_cpus;
  50
  51 extern volatile u_int           checkstate_probed_cpus;
  52 extern void (*cpustop_restartfunc) (void);
  53
  54 /* functions in apic_ipl.s */
  55 void    apic_eoi                (void);
  56 u_int   io_apic_read            (int, int);
  57 void    io_apic_write           (int, int, u_int);
  58
  59 /* global data in mp_machdep.c */
  60 extern int                      mp_naps;
  61 extern int                      mp_napics;
  62 extern vm_offset_t              io_apic_address[];
  63 extern u_int32_t                cpu_apic_versions[];
  64 extern u_int32_t                *io_apic_versions;
  65 extern int                      cpu_num_to_apic_id[];
  66 extern int                      io_num_to_apic_id[];
  67 extern int                      apic_id_to_logical[];
  68 #define APIC_INTMAPSIZE 24
  69 /*
  70  * NOTE:
  71  * - Keep size of apic_intmapinfo power of 2
  72  * - Update IOAPIC_IM_SZSHIFT after changing apic_intmapinfo size
  73  */
  74 struct apic_intmapinfo {
  75         int ioapic;
  76         int int_pin;
  77         volatile void *apic_address;
  78         int redirindex;
  79         uint32_t flags;         /* IOAPIC_IM_FLAG_ */
  80         uint32_t pad[3];
  81 };
  82 #define IOAPIC_IM_SZSHIFT       5
  83
  84 #define IOAPIC_IM_FLAG_LEVEL    0x1     /* default to edge trigger */
  85
  86 extern struct apic_intmapinfo   int_to_apicintpin[];
  87 extern struct pcb               stoppcbs[];
  88
  89 /* functions in mp_machdep.c */
  90 void    *permanent_io_mapping(vm_paddr_t);
  91 u_int   mp_bootaddress          (u_int);
  92 void    mp_start                (void);
  93 void    mp_announce             (void);
  94 void    mp_set_cpuids           (int, int);
  95 u_int   isa_apic_mask           (u_int);
  96 int     isa_apic_irq            (int);
  97 int     pci_apic_irq            (int, int, int);
  98 int     apic_irq                (int, int);
  99 int     next_apic_irq           (int);
 100 int     undirect_isa_irq        (int);
 101 int     undirect_pci_irq        (int);
 102 int     apic_bus_type           (int);
 103 int     apic_src_bus_id         (int, int);
 104 int     apic_src_bus_irq        (int, int);
 105 int     apic_int_type           (int, int);
 106 int     apic_trigger            (int, int);
 107 int     apic_polarity           (int, int);
 108 void    assign_apic_irq         (int apic, int intpin, int irq);
 109 void    revoke_apic_irq         (int irq);
 110 void    init_secondary          (void);
 111 int     stop_cpus               (u_int);
 112 void    ap_init                 (void);
 113 int     restart_cpus            (u_int);
 114 void    forward_signal          (struct proc *);
 115
 116 #ifndef _SYS_QUEUE_H_
 117 #include <sys/queue.h>
 118 #endif
 119
 120 struct lapic_enumerator {
 121         int     lapic_prio;
 122         TAILQ_ENTRY(lapic_enumerator) lapic_link;
 123         int     (*lapic_probe)(struct lapic_enumerator *);
 124         void    (*lapic_enumerate)(struct lapic_enumerator *);
 125 };
 126
 127 #define LAPIC_ENUM_PRIO_MPTABLE 20
 128 #define LAPIC_ENUM_PRIO_MADT    40
 129
 130 /* global data in mpapic.c */
 131 extern volatile lapic_t         lapic;
 132 extern volatile ioapic_t        **ioapic;
 133
 134 /* functions in mpapic.c */
 135 void    apic_dump               (char*);
 136 void    apic_initialize         (boolean_t);
 137 void    imen_dump               (void);
 138 int     apic_ipi                (int, int, int);
 139 void    selected_apic_ipi       (u_int, int, int);
 140 void    single_apic_ipi(int cpu, int vector, int delivery_mode);
 141 int     single_apic_ipi_passive(int cpu, int vector, int delivery_mode);
 142 int     io_apic_setup           (int);
 143 void    io_apic_setup_intpin    (int, int);
 144 void    io_apic_set_id          (int, int);
 145 int     io_apic_get_id          (int);
 146 int     ext_int_setup           (int, int);
 147 void    lapic_config(void);
 148 void    lapic_enumerator_register(struct lapic_enumerator *);
 149
 150 #if defined(READY)
 151 void    clr_io_apic_mask24      (int, u_int32_t);
 152 void    set_io_apic_mask24      (int, u_int32_t);
 153 #endif /* READY */
 154
 155 void    set_apic_timer          (int);
 156 int     read_apic_timer         (void);
 157 void    u_sleep                 (int);
 158 void    cpu_send_ipiq           (int);
 159 int     cpu_send_ipiq_passive   (int);
 160
 161 /* global data in init_smp.c */
 162 extern cpumask_t                smp_active_mask;
 163
 164 #endif /* !LOCORE */
 165 #else   /* !SMP */
 166
 167 #define smp_active_mask 1       /* smp_active_mask always 1 on UP machines */
 168
 169 #endif
 170
 171 #endif /* _KERNEL */
 172 #endif /* _MACHINE_SMP_H_ */