release/src-rt-6.x/linux/linux-2.6/arch/m32r/boot/compressed/boot.h

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