thermal: fix Mediatek thermal controller build
[linux/fpc-iii.git] / arch / x86 / include / asm / desc_defs.h
blobeb5deb42484d5e283adeaa191c004d1566f11a7f
1 /* Written 2000 by Andi Kleen */
2 #ifndef _ASM_X86_DESC_DEFS_H
3 #define _ASM_X86_DESC_DEFS_H
5 /*
6 * Segment descriptor structure definitions, usable from both x86_64 and i386
7 * archs.
8 */
10 #ifndef __ASSEMBLY__
12 #include <linux/types.h>
15 * FIXME: Accessing the desc_struct through its fields is more elegant,
16 * and should be the one valid thing to do. However, a lot of open code
17 * still touches the a and b accessors, and doing this allow us to do it
18 * incrementally. We keep the signature as a struct, rather than an union,
19 * so we can get rid of it transparently in the future -- glommer
21 /* 8 byte segment descriptor */
22 struct desc_struct {
23 union {
24 struct {
25 unsigned int a;
26 unsigned int b;
28 struct {
29 u16 limit0;
30 u16 base0;
31 unsigned base1: 8, type: 4, s: 1, dpl: 2, p: 1;
32 unsigned limit: 4, avl: 1, l: 1, d: 1, g: 1, base2: 8;
35 } __attribute__((packed));
37 #define GDT_ENTRY_INIT(flags, base, limit) { { { \
38 .a = ((limit) & 0xffff) | (((base) & 0xffff) << 16), \
39 .b = (((base) & 0xff0000) >> 16) | (((flags) & 0xf0ff) << 8) | \
40 ((limit) & 0xf0000) | ((base) & 0xff000000), \
41 } } }
43 enum {
44 GATE_INTERRUPT = 0xE,
45 GATE_TRAP = 0xF,
46 GATE_CALL = 0xC,
47 GATE_TASK = 0x5,
50 /* 16byte gate */
51 struct gate_struct64 {
52 u16 offset_low;
53 u16 segment;
54 unsigned ist : 3, zero0 : 5, type : 5, dpl : 2, p : 1;
55 u16 offset_middle;
56 u32 offset_high;
57 u32 zero1;
58 } __attribute__((packed));
60 #define PTR_LOW(x) ((unsigned long long)(x) & 0xFFFF)
61 #define PTR_MIDDLE(x) (((unsigned long long)(x) >> 16) & 0xFFFF)
62 #define PTR_HIGH(x) ((unsigned long long)(x) >> 32)
64 enum {
65 DESC_TSS = 0x9,
66 DESC_LDT = 0x2,
67 DESCTYPE_S = 0x10, /* !system */
70 /* LDT or TSS descriptor in the GDT. 16 bytes. */
71 struct ldttss_desc64 {
72 u16 limit0;
73 u16 base0;
74 unsigned base1 : 8, type : 5, dpl : 2, p : 1;
75 unsigned limit1 : 4, zero0 : 3, g : 1, base2 : 8;
76 u32 base3;
77 u32 zero1;
78 } __attribute__((packed));
80 #ifdef CONFIG_X86_64
81 typedef struct gate_struct64 gate_desc;
82 typedef struct ldttss_desc64 ldt_desc;
83 typedef struct ldttss_desc64 tss_desc;
84 #define gate_offset(g) ((g).offset_low | ((unsigned long)(g).offset_middle << 16) | ((unsigned long)(g).offset_high << 32))
85 #define gate_segment(g) ((g).segment)
86 #else
87 typedef struct desc_struct gate_desc;
88 typedef struct desc_struct ldt_desc;
89 typedef struct desc_struct tss_desc;
90 #define gate_offset(g) (((g).b & 0xffff0000) | ((g).a & 0x0000ffff))
91 #define gate_segment(g) ((g).a >> 16)
92 #endif
94 struct desc_ptr {
95 unsigned short size;
96 unsigned long address;
97 } __attribute__((packed)) ;
99 #endif /* !__ASSEMBLY__ */
101 /* Access rights as returned by LAR */
102 #define AR_TYPE_RODATA (0 * (1 << 9))
103 #define AR_TYPE_RWDATA (1 * (1 << 9))
104 #define AR_TYPE_RODATA_EXPDOWN (2 * (1 << 9))
105 #define AR_TYPE_RWDATA_EXPDOWN (3 * (1 << 9))
106 #define AR_TYPE_XOCODE (4 * (1 << 9))
107 #define AR_TYPE_XRCODE (5 * (1 << 9))
108 #define AR_TYPE_XOCODE_CONF (6 * (1 << 9))
109 #define AR_TYPE_XRCODE_CONF (7 * (1 << 9))
110 #define AR_TYPE_MASK (7 * (1 << 9))
112 #define AR_DPL0 (0 * (1 << 13))
113 #define AR_DPL3 (3 * (1 << 13))
114 #define AR_DPL_MASK (3 * (1 << 13))
116 #define AR_A (1 << 8) /* "Accessed" */
117 #define AR_S (1 << 12) /* If clear, "System" segment */
118 #define AR_P (1 << 15) /* "Present" */
119 #define AR_AVL (1 << 20) /* "AVaiLable" (no HW effect) */
120 #define AR_L (1 << 21) /* "Long mode" for code segments */
121 #define AR_DB (1 << 22) /* D/B, effect depends on type */
122 #define AR_G (1 << 23) /* "Granularity" (limit in pages) */
124 #endif /* _ASM_X86_DESC_DEFS_H */