sys/arch/ia64/include/efi.h

   1 /*      $NetBSD$        */
   2
   3 /*-
   4  * Copyright (c) 2004 Marcel Moolenaar
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  *
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  *
  28  * $FreeBSD$
  29  */
  30
  31 #ifndef _MACHINE_EFI_H_
  32 #define _MACHINE_EFI_H_
  33
  34 #include <sys/uuid.h>
  35
  36 #define EFI_PAGE_SHIFT          12
  37 #define EFI_PAGE_SIZE           (1 << EFI_PAGE_SHIFT)
  38 #define EFI_PAGE_MASK           (EFI_PAGE_SIZE - 1)
  39
  40 #define EFI_TABLE_ACPI20                        \
  41         {0x8868e871,0xe4f1,0x11d3,0xbc,0x22,{0x00,0x80,0xc7,0x3c,0x88,0x81}}
  42 #define EFI_TABLE_SAL                           \
  43         {0xeb9d2d32,0x2d88,0x11d3,0x9a,0x16,{0x00,0x90,0x27,0x3f,0xc1,0x4d}}
  44
  45 enum efi_reset {
  46         EFI_RESET_COLD,
  47         EFI_RESET_WARM
  48 };
  49
  50 typedef uint16_t        efi_char;
  51 typedef unsigned long efi_status;
  52
  53 struct efi_cfgtbl {
  54         struct uuid     ct_uuid;
  55         uint64_t        ct_data;
  56 };
  57
  58 struct efi_md {
  59         uint32_t        md_type;
  60 #define EFI_MD_TYPE_NULL        0
  61 #define EFI_MD_TYPE_CODE        1       /* Loader text. */
  62 #define EFI_MD_TYPE_DATA        2       /* Loader data. */
  63 #define EFI_MD_TYPE_BS_CODE     3       /* Boot services text. */
  64 #define EFI_MD_TYPE_BS_DATA     4       /* Boot services data. */
  65 #define EFI_MD_TYPE_RT_CODE     5       /* Runtime services text. */
  66 #define EFI_MD_TYPE_RT_DATA     6       /* Runtime services data. */
  67 #define EFI_MD_TYPE_FREE        7       /* Unused/free memory. */
  68 #define EFI_MD_TYPE_BAD         8       /* Bad memory */
  69 #define EFI_MD_TYPE_RECLAIM     9       /* ACPI reclaimable memory. */
  70 #define EFI_MD_TYPE_FIRMWARE    10      /* ACPI NV memory */
  71 #define EFI_MD_TYPE_IOMEM       11      /* Memory-mapped I/O. */
  72 #define EFI_MD_TYPE_IOPORT      12      /* I/O port space. */
  73 #define EFI_MD_TYPE_PALCODE     13      /* PAL */
  74         uint32_t        __pad;
  75         uint64_t        md_phys;
  76         void            *md_virt;
  77         uint64_t        md_pages;
  78         uint64_t        md_attr;
  79 #define EFI_MD_ATTR_UC          0x0000000000000001UL
  80 #define EFI_MD_ATTR_WC          0x0000000000000002UL
  81 #define EFI_MD_ATTR_WT          0x0000000000000004UL
  82 #define EFI_MD_ATTR_WB          0x0000000000000008UL
  83 #define EFI_MD_ATTR_UCE         0x0000000000000010UL
  84 #define EFI_MD_ATTR_WP          0x0000000000001000UL
  85 #define EFI_MD_ATTR_RP          0x0000000000002000UL
  86 #define EFI_MD_ATTR_XP          0x0000000000004000UL
  87 #define EFI_MD_ATTR_RT          0x8000000000000000UL
  88 };
  89
  90 struct efi_tm {
  91         uint16_t        tm_year;                /* 1998 - 20XX */
  92         uint8_t         tm_mon;                 /* 1 - 12 */
  93         uint8_t         tm_mday;                /* 1 - 31 */
  94         uint8_t         tm_hour;                /* 0 - 23 */
  95         uint8_t         tm_min;                 /* 0 - 59 */
  96         uint8_t         tm_sec;                 /* 0 - 59 */
  97         uint8_t         __pad1;
  98         uint32_t        tm_nsec;                /* 0 - 999,999,999 */
  99         int16_t         tm_tz;                  /* -1440 to 1440 or 2047 */
 100         uint8_t         tm_dst;
 101         uint8_t         __pad2;
 102 };
 103
 104 struct efi_tmcap {
 105         uint32_t        tc_res;         /* 1e-6 parts per million */
 106         uint32_t        tc_prec;        /* hertz */
 107         uint8_t         tc_stz;         /* Set clears sub-second time */
 108 };
 109
 110 struct efi_tblhdr {
 111         uint64_t        th_sig;
 112         uint32_t        th_rev;
 113         uint32_t        th_hdrsz;
 114         uint32_t        th_crc32;
 115         uint32_t        __res;
 116 };
 117
 118 struct efi_rt {
 119         struct efi_tblhdr rt_hdr;
 120         efi_status      (*rt_gettime)(struct efi_tm *, struct efi_tmcap *);
 121         efi_status      (*rt_settime)(struct efi_tm *);
 122         efi_status      (*rt_getwaketime)(uint8_t *, uint8_t *,
 123             struct efi_tm *);
 124         efi_status      (*rt_setwaketime)(uint8_t, struct efi_tm *);
 125         efi_status      (*rt_setvirtual)(u_long, u_long, uint32_t,
 126             struct efi_md *);
 127         efi_status      (*rt_cvtptr)(u_long, void **);
 128         efi_status      (*rt_getvar)(efi_char *, struct uuid *, uint32_t *,
 129             u_long *, void *);
 130         efi_status      (*rt_scanvar)(u_long *, efi_char *, struct uuid *);
 131         efi_status      (*rt_setvar)(efi_char *, struct uuid *, uint32_t,
 132             u_long, void *);
 133         efi_status      (*rt_gethicnt)(uint32_t *);
 134         efi_status      (*rt_reset)(enum efi_reset, efi_status, u_long,
 135             efi_char *);
 136 };
 137
 138 struct efi_systbl {
 139         struct efi_tblhdr st_hdr;
 140 #define EFI_SYSTBL_SIG  0x5453595320494249UL
 141         efi_char        *st_fwvendor;
 142         uint32_t        st_fwrev;
 143         uint32_t        __pad;
 144         void            *st_cin;
 145         void            *st_cinif;
 146         void            *st_cout;
 147         void            *st_coutif;
 148         void            *st_cerr;
 149         void            *st_cerrif;
 150         uint64_t        st_rt;
 151         void            *st_bs;
 152         u_long          st_entries;
 153         uint64_t        st_cfgtbl;
 154 };
 155
 156 void efi_boot_finish(void);
 157 int efi_boot_minimal(uint64_t);
 158 void *efi_get_table(struct uuid *);
 159 void efi_get_time(struct efi_tm *);
 160 struct efi_md *efi_md_first(void);
 161 struct efi_md *efi_md_next(struct efi_md *);
 162 void efi_reset_system(void);
 163 efi_status efi_set_time(struct efi_tm *);
 164
 165 #endif /* _MACHINE_EFI_H_ */