1 /* SPDX-License-Identifier: GPL-2.0-only */
2 #ifndef __ALPHA_SETUP_H
3 #define __ALPHA_SETUP_H
5 #include <uapi/asm/setup.h>
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).
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)
17 #ifdef CONFIG_ALPHA_LEGACY_START_ADDRESS
18 #define KERNEL_START_PHYS 0x300000 /* Old bootloaders hardcoded this. */
20 #define KERNEL_START_PHYS 0x1000000 /* required: Wildfire/Titan/Marvel */
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)
30 #define START_ADDR (PAGE_OFFSET+KERNEL_START_PHYS+0x10000)
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
38 #define PARAM ZERO_PGE
39 #define COMMAND_LINE ((char *)(absolute_pointer(PARAM + 0x0000)))
40 #define INITRD_START (*(unsigned long *) (PARAM+0x100))
41 #define INITRD_SIZE (*(unsigned long *) (PARAM+0x108))