44 lines
1.4 KiB
C
44 lines
1.4 KiB
C
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/* SPDX-License-Identifier: GPL-2.0-only */
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#ifndef __ALPHA_SETUP_H
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#define __ALPHA_SETUP_H
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#include <uapi/asm/setup.h>
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/*
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* We leave one page for the initial stack page, and one page for
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* the initial process structure. Also, the console eats 3 MB for
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* the initial bootloader (one of which we can reclaim later).
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*/
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#define BOOT_PCB 0x20000000
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#define BOOT_ADDR 0x20000000
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/* Remove when official MILO sources have ELF support: */
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#define BOOT_SIZE (16*1024)
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#ifdef CONFIG_ALPHA_LEGACY_START_ADDRESS
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#define KERNEL_START_PHYS 0x300000 /* Old bootloaders hardcoded this. */
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#else
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#define KERNEL_START_PHYS 0x1000000 /* required: Wildfire/Titan/Marvel */
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#endif
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#define KERNEL_START (PAGE_OFFSET+KERNEL_START_PHYS)
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#define SWAPPER_PGD KERNEL_START
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#define INIT_STACK (PAGE_OFFSET+KERNEL_START_PHYS+0x02000)
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#define EMPTY_PGT (PAGE_OFFSET+KERNEL_START_PHYS+0x04000)
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#define EMPTY_PGE (PAGE_OFFSET+KERNEL_START_PHYS+0x08000)
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#define ZERO_PGE (PAGE_OFFSET+KERNEL_START_PHYS+0x0A000)
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#define START_ADDR (PAGE_OFFSET+KERNEL_START_PHYS+0x10000)
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/*
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* This is setup by the secondary bootstrap loader. Because
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* the zero page is zeroed out as soon as the vm system is
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* initialized, we need to copy things out into a more permanent
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* place.
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*/
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#define PARAM ZERO_PGE
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#define COMMAND_LINE ((char *)(absolute_pointer(PARAM + 0x0000)))
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#define INITRD_START (*(unsigned long *) (PARAM+0x100))
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#define INITRD_SIZE (*(unsigned long *) (PARAM+0x108))
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#endif
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