arch/x86/include/asm/setup.h

   1 #ifndef _ASM_X86_SETUP_H
   2 #define _ASM_X86_SETUP_H
   3
   4 #define COMMAND_LINE_SIZE 2048
   5
   6 #ifndef __ASSEMBLY__
   7
   8 /* Interrupt control for vSMPowered x86_64 systems */
   9 void vsmp_init(void);
  10
  11 #ifdef CONFIG_X86_VISWS
  12 extern void visws_early_detect(void);
  13 extern int is_visws_box(void);
  14 #else
  15 static inline void visws_early_detect(void) { }
  16 static inline int is_visws_box(void) { return 0; }
  17 #endif
  18
  19 /*
  20  * Any setup quirks to be performed?
  21  */
  22 struct mpc_config_processor;
  23 struct mpc_config_bus;
  24 struct mp_config_oemtable;
  25 struct x86_quirks {
  26         int (*arch_pre_time_init)(void);
  27         int (*arch_time_init)(void);
  28         int (*arch_pre_intr_init)(void);
  29         int (*arch_intr_init)(void);
  30         int (*arch_trap_init)(void);
  31         char * (*arch_memory_setup)(void);
  32         int (*mach_get_smp_config)(unsigned int early);
  33         int (*mach_find_smp_config)(unsigned int reserve);
  34
  35         int *mpc_record;
  36         int (*mpc_apic_id)(struct mpc_config_processor *m);
  37         void (*mpc_oem_bus_info)(struct mpc_config_bus *m, char *name);
  38         void (*mpc_oem_pci_bus)(struct mpc_config_bus *m);
  39         void (*smp_read_mpc_oem)(struct mp_config_oemtable *oemtable,
  40                                     unsigned short oemsize);
  41         int (*setup_ioapic_ids)(void);
  42 };
  43
  44 extern struct x86_quirks *x86_quirks;
  45 extern unsigned long saved_video_mode;
  46
  47 #ifndef CONFIG_PARAVIRT
  48 #define paravirt_post_allocator_init()  do {} while (0)
  49 #endif
  50 #endif /* __ASSEMBLY__ */
  51
  52 #ifdef __KERNEL__
  53
  54 #ifdef __i386__
  55
  56 #include <linux/pfn.h>
  57 /*
  58  * Reserved space for vmalloc and iomap - defined in asm/page.h
  59  */
  60 #define MAXMEM_PFN      PFN_DOWN(MAXMEM)
  61 #define MAX_NONPAE_PFN  (1 << 20)
  62
  63 #endif /* __i386__ */
  64
  65 #define PARAM_SIZE 4096         /* sizeof(struct boot_params) */
  66
  67 #define OLD_CL_MAGIC            0xA33F
  68 #define OLD_CL_ADDRESS          0x020   /* Relative to real mode data */
  69 #define NEW_CL_POINTER          0x228   /* Relative to real mode data */
  70
  71 #ifndef __ASSEMBLY__
  72 #include <asm/bootparam.h>
  73
  74 #ifndef _SETUP
  75
  76 /*
  77  * This is set up by the setup-routine at boot-time
  78  */
  79 extern struct boot_params boot_params;
  80
  81 /*
  82  * Do NOT EVER look at the BIOS memory size location.
  83  * It does not work on many machines.
  84  */
  85 #define LOWMEMSIZE()    (0x9f000)
  86
  87 #ifdef __i386__
  88
  89 void __init i386_start_kernel(void);
  90 extern void probe_roms(void);
  91
  92 extern unsigned long init_pg_tables_start;
  93 extern unsigned long init_pg_tables_end;
  94
  95 #else
  96 void __init x86_64_init_pda(void);
  97 void __init x86_64_start_kernel(char *real_mode);
  98 void __init x86_64_start_reservations(char *real_mode_data);
  99
 100 #endif /* __i386__ */
 101 #endif /* _SETUP */
 102 #endif /* __ASSEMBLY__ */
 103 #endif  /*  __KERNEL__  */
 104
 105 #endif /* _ASM_X86_SETUP_H */