Merge remote-tracking branch 'regulator/fix/max8998' into tmp
[~shefty/rdma-dev.git] / arch / x86 / include / uapi / asm / bootparam.h
1 #ifndef _ASM_X86_BOOTPARAM_H
2 #define _ASM_X86_BOOTPARAM_H
3
4 /* setup_data types */
5 #define SETUP_NONE                      0
6 #define SETUP_E820_EXT                  1
7 #define SETUP_DTB                       2
8 #define SETUP_PCI                       3
9
10 /* ram_size flags */
11 #define RAMDISK_IMAGE_START_MASK        0x07FF
12 #define RAMDISK_PROMPT_FLAG             0x8000
13 #define RAMDISK_LOAD_FLAG               0x4000
14
15 /* loadflags */
16 #define LOADED_HIGH     (1<<0)
17 #define QUIET_FLAG      (1<<5)
18 #define KEEP_SEGMENTS   (1<<6)
19 #define CAN_USE_HEAP    (1<<7)
20
21 /* xloadflags */
22 #define XLF_KERNEL_64                   (1<<0)
23 #define XLF_CAN_BE_LOADED_ABOVE_4G      (1<<1)
24 #define XLF_EFI_HANDOVER_32             (1<<2)
25 #define XLF_EFI_HANDOVER_64             (1<<3)
26
27 #ifndef __ASSEMBLY__
28
29 #include <linux/types.h>
30 #include <linux/screen_info.h>
31 #include <linux/apm_bios.h>
32 #include <linux/edd.h>
33 #include <asm/e820.h>
34 #include <asm/ist.h>
35 #include <video/edid.h>
36
37 /* extensible setup data list node */
38 struct setup_data {
39         __u64 next;
40         __u32 type;
41         __u32 len;
42         __u8 data[0];
43 };
44
45 struct setup_header {
46         __u8    setup_sects;
47         __u16   root_flags;
48         __u32   syssize;
49         __u16   ram_size;
50         __u16   vid_mode;
51         __u16   root_dev;
52         __u16   boot_flag;
53         __u16   jump;
54         __u32   header;
55         __u16   version;
56         __u32   realmode_swtch;
57         __u16   start_sys;
58         __u16   kernel_version;
59         __u8    type_of_loader;
60         __u8    loadflags;
61         __u16   setup_move_size;
62         __u32   code32_start;
63         __u32   ramdisk_image;
64         __u32   ramdisk_size;
65         __u32   bootsect_kludge;
66         __u16   heap_end_ptr;
67         __u8    ext_loader_ver;
68         __u8    ext_loader_type;
69         __u32   cmd_line_ptr;
70         __u32   initrd_addr_max;
71         __u32   kernel_alignment;
72         __u8    relocatable_kernel;
73         __u8    min_alignment;
74         __u16   xloadflags;
75         __u32   cmdline_size;
76         __u32   hardware_subarch;
77         __u64   hardware_subarch_data;
78         __u32   payload_offset;
79         __u32   payload_length;
80         __u64   setup_data;
81         __u64   pref_address;
82         __u32   init_size;
83         __u32   handover_offset;
84 } __attribute__((packed));
85
86 struct sys_desc_table {
87         __u16 length;
88         __u8  table[14];
89 };
90
91 /* Gleaned from OFW's set-parameters in cpu/x86/pc/linux.fth */
92 struct olpc_ofw_header {
93         __u32 ofw_magic;        /* OFW signature */
94         __u32 ofw_version;
95         __u32 cif_handler;      /* callback into OFW */
96         __u32 irq_desc_table;
97 } __attribute__((packed));
98
99 struct efi_info {
100         __u32 efi_loader_signature;
101         __u32 efi_systab;
102         __u32 efi_memdesc_size;
103         __u32 efi_memdesc_version;
104         __u32 efi_memmap;
105         __u32 efi_memmap_size;
106         __u32 efi_systab_hi;
107         __u32 efi_memmap_hi;
108 };
109
110 /* The so-called "zeropage" */
111 struct boot_params {
112         struct screen_info screen_info;                 /* 0x000 */
113         struct apm_bios_info apm_bios_info;             /* 0x040 */
114         __u8  _pad2[4];                                 /* 0x054 */
115         __u64  tboot_addr;                              /* 0x058 */
116         struct ist_info ist_info;                       /* 0x060 */
117         __u8  _pad3[16];                                /* 0x070 */
118         __u8  hd0_info[16];     /* obsolete! */         /* 0x080 */
119         __u8  hd1_info[16];     /* obsolete! */         /* 0x090 */
120         struct sys_desc_table sys_desc_table;           /* 0x0a0 */
121         struct olpc_ofw_header olpc_ofw_header;         /* 0x0b0 */
122         __u32 ext_ramdisk_image;                        /* 0x0c0 */
123         __u32 ext_ramdisk_size;                         /* 0x0c4 */
124         __u32 ext_cmd_line_ptr;                         /* 0x0c8 */
125         __u8  _pad4[116];                               /* 0x0cc */
126         struct edid_info edid_info;                     /* 0x140 */
127         struct efi_info efi_info;                       /* 0x1c0 */
128         __u32 alt_mem_k;                                /* 0x1e0 */
129         __u32 scratch;          /* Scratch field! */    /* 0x1e4 */
130         __u8  e820_entries;                             /* 0x1e8 */
131         __u8  eddbuf_entries;                           /* 0x1e9 */
132         __u8  edd_mbr_sig_buf_entries;                  /* 0x1ea */
133         __u8  kbd_status;                               /* 0x1eb */
134         __u8  _pad5[3];                                 /* 0x1ec */
135         /*
136          * The sentinel is set to a nonzero value (0xff) in header.S.
137          *
138          * A bootloader is supposed to only take setup_header and put
139          * it into a clean boot_params buffer. If it turns out that
140          * it is clumsy or too generous with the buffer, it most
141          * probably will pick up the sentinel variable too. The fact
142          * that this variable then is still 0xff will let kernel
143          * know that some variables in boot_params are invalid and
144          * kernel should zero out certain portions of boot_params.
145          */
146         __u8  sentinel;                                 /* 0x1ef */
147         __u8  _pad6[1];                                 /* 0x1f0 */
148         struct setup_header hdr;    /* setup header */  /* 0x1f1 */
149         __u8  _pad7[0x290-0x1f1-sizeof(struct setup_header)];
150         __u32 edd_mbr_sig_buffer[EDD_MBR_SIG_MAX];      /* 0x290 */
151         struct e820entry e820_map[E820MAX];             /* 0x2d0 */
152         __u8  _pad8[48];                                /* 0xcd0 */
153         struct edd_info eddbuf[EDDMAXNR];               /* 0xd00 */
154         __u8  _pad9[276];                               /* 0xeec */
155 } __attribute__((packed));
156
157 enum {
158         X86_SUBARCH_PC = 0,
159         X86_SUBARCH_LGUEST,
160         X86_SUBARCH_XEN,
161         X86_SUBARCH_MRST,
162         X86_SUBARCH_CE4100,
163         X86_NR_SUBARCHS,
164 };
165
166 #endif /* __ASSEMBLY__ */
167
168 #endif /* _ASM_X86_BOOTPARAM_H */