cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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setup.h (4043B)

      1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
      2/*
      3 *  linux/include/asm/setup.h
      4 *
      5 *  Copyright (C) 1997-1999 Russell King
      6 *
      7 * This program is free software; you can redistribute it and/or modify
      8 * it under the terms of the GNU General Public License version 2 as
      9 * published by the Free Software Foundation.
     10 *
     11 *  Structure passed to kernel to tell it about the
     12 *  hardware it's running on.  See Documentation/arm/setup.rst
     13 *  for more info.
     14 */
     15#ifndef _UAPI__ASMARM_SETUP_H
     16#define _UAPI__ASMARM_SETUP_H
     17
     18#include <linux/types.h>
     19
     20#define COMMAND_LINE_SIZE 1024
     21
     22/* The list ends with an ATAG_NONE node. */
     23#define ATAG_NONE	0x00000000
     24
     25struct tag_header {
     26	__u32 size;
     27	__u32 tag;
     28};
     29
     30/* The list must start with an ATAG_CORE node */
     31#define ATAG_CORE	0x54410001
     32
     33struct tag_core {
     34	__u32 flags;		/* bit 0 = read-only */
     35	__u32 pagesize;
     36	__u32 rootdev;
     37};
     38
     39/* it is allowed to have multiple ATAG_MEM nodes */
     40#define ATAG_MEM	0x54410002
     41
     42struct tag_mem32 {
     43	__u32	size;
     44	__u32	start;	/* physical start address */
     45};
     46
     47/* VGA text type displays */
     48#define ATAG_VIDEOTEXT	0x54410003
     49
     50struct tag_videotext {
     51	__u8		x;
     52	__u8		y;
     53	__u16		video_page;
     54	__u8		video_mode;
     55	__u8		video_cols;
     56	__u16		video_ega_bx;
     57	__u8		video_lines;
     58	__u8		video_isvga;
     59	__u16		video_points;
     60};
     61
     62/* describes how the ramdisk will be used in kernel */
     63#define ATAG_RAMDISK	0x54410004
     64
     65struct tag_ramdisk {
     66	__u32 flags;	/* bit 0 = load, bit 1 = prompt */
     67	__u32 size;	/* decompressed ramdisk size in _kilo_ bytes */
     68	__u32 start;	/* starting block of floppy-based RAM disk image */
     69};
     70
     71/* describes where the compressed ramdisk image lives (virtual address) */
     72/*
     73 * this one accidentally used virtual addresses - as such,
     74 * it's deprecated.
     75 */
     76#define ATAG_INITRD	0x54410005
     77
     78/* describes where the compressed ramdisk image lives (physical address) */
     79#define ATAG_INITRD2	0x54420005
     80
     81struct tag_initrd {
     82	__u32 start;	/* physical start address */
     83	__u32 size;	/* size of compressed ramdisk image in bytes */
     84};
     85
     86/* board serial number. "64 bits should be enough for everybody" */
     87#define ATAG_SERIAL	0x54410006
     88
     89struct tag_serialnr {
     90	__u32 low;
     91	__u32 high;
     92};
     93
     94/* board revision */
     95#define ATAG_REVISION	0x54410007
     96
     97struct tag_revision {
     98	__u32 rev;
     99};
    100
    101/* initial values for vesafb-type framebuffers. see struct screen_info
    102 * in include/linux/tty.h
    103 */
    104#define ATAG_VIDEOLFB	0x54410008
    105
    106struct tag_videolfb {
    107	__u16		lfb_width;
    108	__u16		lfb_height;
    109	__u16		lfb_depth;
    110	__u16		lfb_linelength;
    111	__u32		lfb_base;
    112	__u32		lfb_size;
    113	__u8		red_size;
    114	__u8		red_pos;
    115	__u8		green_size;
    116	__u8		green_pos;
    117	__u8		blue_size;
    118	__u8		blue_pos;
    119	__u8		rsvd_size;
    120	__u8		rsvd_pos;
    121};
    122
    123/* command line: \0 terminated string */
    124#define ATAG_CMDLINE	0x54410009
    125
    126struct tag_cmdline {
    127	char	cmdline[1];	/* this is the minimum size */
    128};
    129
    130/* acorn RiscPC specific information */
    131#define ATAG_ACORN	0x41000101
    132
    133struct tag_acorn {
    134	__u32 memc_control_reg;
    135	__u32 vram_pages;
    136	__u8 sounddefault;
    137	__u8 adfsdrives;
    138};
    139
    140/* footbridge memory clock, see arch/arm/mach-footbridge/arch.c */
    141#define ATAG_MEMCLK	0x41000402
    142
    143struct tag_memclk {
    144	__u32 fmemclk;
    145};
    146
    147struct tag {
    148	struct tag_header hdr;
    149	union {
    150		struct tag_core		core;
    151		struct tag_mem32	mem;
    152		struct tag_videotext	videotext;
    153		struct tag_ramdisk	ramdisk;
    154		struct tag_initrd	initrd;
    155		struct tag_serialnr	serialnr;
    156		struct tag_revision	revision;
    157		struct tag_videolfb	videolfb;
    158		struct tag_cmdline	cmdline;
    159
    160		/*
    161		 * Acorn specific
    162		 */
    163		struct tag_acorn	acorn;
    164
    165		/*
    166		 * DC21285 specific
    167		 */
    168		struct tag_memclk	memclk;
    169	} u;
    170};
    171
    172struct tagtable {
    173	__u32 tag;
    174	int (*parse)(const struct tag *);
    175};
    176
    177#define tag_member_present(tag,member)				\
    178	((unsigned long)(&((struct tag *)0L)->member + 1)	\
    179		<= (tag)->hdr.size * 4)
    180
    181#define tag_next(t)	((struct tag *)((__u32 *)(t) + (t)->hdr.size))
    182#define tag_size(type)	((sizeof(struct tag_header) + sizeof(struct type)) >> 2)
    183
    184#define for_each_tag(t,base)		\
    185	for (t = base; t->hdr.size; t = tag_next(t))
    186
    187
    188#endif /* _UAPI__ASMARM_SETUP_H */