arch/m32r/boot/compressed/boot.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * 1. load vmlinuz
   4  *
   5  * CONFIG_MEMORY_START          +-----------------------+
   6  *                              |        vmlinuz        |
   7  *                              +-----------------------+
   8  * 2. decompressed
   9  *
  10  * CONFIG_MEMORY_START          +-----------------------+
  11  *                              |        vmlinuz        |
  12  *                              +-----------------------+
  13  *                              |                       |
  14  * BOOT_RELOC_ADDR              +-----------------------+
  15  *                              |                       |
  16  * KERNEL_DECOMPRESS_ADDR       +-----------------------+
  17  *                              |       vmlinux         |
  18  *                              +-----------------------+
  19  *
  20  * 3. relocate copy & jump code
  21  *
  22  * CONFIG_MEMORY_START          +-----------------------+
  23  *                              |        vmlinuz        |
  24  *                              +-----------------------+
  25  *                              |                       |
  26  * BOOT_RELOC_ADDR              +-----------------------+
  27  *                              |    boot(copy&jump)    |
  28  * KERNEL_DECOMPRESS_ADDR       +-----------------------+
  29  *                              |       vmlinux         |
  30  *                              +-----------------------+
  31  *
  32  * 4. relocate decompressed kernel
  33  *
  34  * CONFIG_MEMORY_START          +-----------------------+
  35  *                              |        vmlinux        |
  36  *                              +-----------------------+
  37  *                              |                       |
  38  * BOOT_RELOC_ADDR              +-----------------------+
  39  *                              |     boot(copy&jump)   |
  40  * KERNEL_DECOMPRESS_ADDR       +-----------------------+
  41  *                              |                       |
  42  *                              +-----------------------+
  43  *
  44  */
  45 #ifdef __ASSEMBLY__
  46 #define __val(x)        x
  47 #else
  48 #define __val(x)        (x)
  49 #endif
  50
  51 #define DECOMPRESS_OFFSET_BASE  __val(0x00900000)
  52 #define BOOT_RELOC_SIZE         __val(0x00001000)
  53
  54 #define KERNEL_EXEC_ADDR        __val(CONFIG_MEMORY_START)
  55 #define KERNEL_DECOMPRESS_ADDR  __val(CONFIG_MEMORY_START + \
  56                                       DECOMPRESS_OFFSET_BASE + BOOT_RELOC_SIZE)
  57 #define KERNEL_ENTRY            __val(CONFIG_MEMORY_START + 0x1000)
  58
  59 #define BOOT_EXEC_ADDR          __val(CONFIG_MEMORY_START)
  60 #define BOOT_RELOC_ADDR         __val(CONFIG_MEMORY_START + DECOMPRESS_OFFSET_BASE)