hw/m68k/bootinfo.h

   1 /*
   2  * SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
   3  *
   4  * Bootinfo tags from linux bootinfo.h and bootinfo-mac.h:
   5  * This is an easily parsable and extendable structure containing all
   6  * information to be passed from the bootstrap to the kernel
   7  *
   8  * This structure is copied right after the kernel by the bootstrap
   9  * routine.
  10  */
  11
  12 #ifndef HW_M68K_BOOTINFO_H
  13 #define HW_M68K_BOOTINFO_H
  14
  15 #define BOOTINFO0(as, base, id) \
  16     do { \
  17         stw_phys(as, base, id); \
  18         base += 2; \
  19         stw_phys(as, base, sizeof(struct bi_record)); \
  20         base += 2; \
  21     } while (0)
  22
  23 #define BOOTINFO1(as, base, id, value) \
  24     do { \
  25         stw_phys(as, base, id); \
  26         base += 2; \
  27         stw_phys(as, base, sizeof(struct bi_record) + 4); \
  28         base += 2; \
  29         stl_phys(as, base, value); \
  30         base += 4; \
  31     } while (0)
  32
  33 #define BOOTINFO2(as, base, id, value1, value2) \
  34     do { \
  35         stw_phys(as, base, id); \
  36         base += 2; \
  37         stw_phys(as, base, sizeof(struct bi_record) + 8); \
  38         base += 2; \
  39         stl_phys(as, base, value1); \
  40         base += 4; \
  41         stl_phys(as, base, value2); \
  42         base += 4; \
  43     } while (0)
  44
  45 #define BOOTINFOSTR(as, base, id, string) \
  46     do { \
  47         int i; \
  48         stw_phys(as, base, id); \
  49         base += 2; \
  50         stw_phys(as, base, \
  51                  (sizeof(struct bi_record) + strlen(string) + 2) & ~1); \
  52         base += 2; \
  53         for (i = 0; string[i]; i++) { \
  54             stb_phys(as, base++, string[i]); \
  55         } \
  56         stb_phys(as, base++, 0); \
  57         base = (parameters_base + 1) & ~1; \
  58     } while (0)
  59 #endif