arch/alpha/include/uapi/asm/setup.h

   1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2 #ifndef __ALPHA_SETUP_H
   3 #define __ALPHA_SETUP_H
   4
   5 #define COMMAND_LINE_SIZE       256
   6
   7 /*
   8  * We leave one page for the initial stack page, and one page for
   9  * the initial process structure. Also, the console eats 3 MB for
  10  * the initial bootloader (one of which we can reclaim later).
  11  */
  12 #define BOOT_PCB        0x20000000
  13 #define BOOT_ADDR       0x20000000
  14 /* Remove when official MILO sources have ELF support: */
  15 #define BOOT_SIZE       (16*1024)
  16
  17 #ifdef CONFIG_ALPHA_LEGACY_START_ADDRESS
  18 #define KERNEL_START_PHYS       0x300000 /* Old bootloaders hardcoded this.  */
  19 #else
  20 #define KERNEL_START_PHYS       0x1000000 /* required: Wildfire/Titan/Marvel */
  21 #endif
  22
  23 #define KERNEL_START    (PAGE_OFFSET+KERNEL_START_PHYS)
  24 #define SWAPPER_PGD     KERNEL_START
  25 #define INIT_STACK      (PAGE_OFFSET+KERNEL_START_PHYS+0x02000)
  26 #define EMPTY_PGT       (PAGE_OFFSET+KERNEL_START_PHYS+0x04000)
  27 #define EMPTY_PGE       (PAGE_OFFSET+KERNEL_START_PHYS+0x08000)
  28 #define ZERO_PGE        (PAGE_OFFSET+KERNEL_START_PHYS+0x0A000)
  29
  30 #define START_ADDR      (PAGE_OFFSET+KERNEL_START_PHYS+0x10000)
  31
  32 /*
  33  * This is setup by the secondary bootstrap loader.  Because
  34  * the zero page is zeroed out as soon as the vm system is
  35  * initialized, we need to copy things out into a more permanent
  36  * place.
  37  */
  38 #define PARAM                   ZERO_PGE
  39 #define COMMAND_LINE            ((char*)(PARAM + 0x0000))
  40 #define INITRD_START            (*(unsigned long *) (PARAM+0x100))
  41 #define INITRD_SIZE             (*(unsigned long *) (PARAM+0x108))
  42
  43 #endif