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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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9a8fd55899
The attached patches provides part 6 of an architecture implementation for the Tensilica Xtensa CPU series. Signed-off-by: Chris Zankel <chris@zankel.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
62 lines
1.5 KiB
C
62 lines
1.5 KiB
C
/*
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* include/asm-xtensa/bootparam.h
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*
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* Definition of the Linux/Xtensa boot parameter structure
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 2001 - 2005 Tensilica Inc.
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*
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* (Concept borrowed from the 68K port)
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*/
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#ifndef _XTENSA_BOOTPARAM_H
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#define _XTENSA_BOOTPARAM_H
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#define BP_VERSION 0x0001
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#define BP_TAG_COMMAND_LINE 0x1001 /* command line (0-terminated string)*/
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#define BP_TAG_INITRD 0x1002 /* ramdisk addr and size (bp_meminfo) */
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#define BP_TAG_MEMORY 0x1003 /* memory addr and size (bp_meminfo) */
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#define BP_TAG_SERIAL_BAUSRATE 0x1004 /* baud rate of current console. */
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#define BP_TAG_SERIAL_PORT 0x1005 /* serial device of current console */
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#define BP_TAG_FIRST 0x7B0B /* first tag with a version number */
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#define BP_TAG_LAST 0x7E0B /* last tag */
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#ifndef __ASSEMBLY__
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/* All records are aligned to 4 bytes */
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typedef struct bp_tag {
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unsigned short id; /* tag id */
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unsigned short size; /* size of this record excluding the structure*/
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unsigned long data[0]; /* data */
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} bp_tag_t;
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typedef struct meminfo {
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unsigned long type;
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unsigned long start;
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unsigned long end;
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} meminfo_t;
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#define SYSMEM_BANKS_MAX 5
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#define MEMORY_TYPE_CONVENTIONAL 0x1000
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#define MEMORY_TYPE_NONE 0x2000
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typedef struct sysmem_info {
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int nr_banks;
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meminfo_t bank[SYSMEM_BANKS_MAX];
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} sysmem_info_t;
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extern sysmem_info_t sysmem;
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#endif
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#endif
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