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[/] [or1k_old/] [trunk/] [uclinux/] [uClinux-2.0.x/] [include/] [asm-or32/] [segment.h] - Blame information for rev 1782

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#ifndef _OR32_SEGMENT_H
#define _OR32_SEGMENT_H
 
/* define constants */
/* Address spaces (FC0-FC2) */
#define USER_DATA     (1)
#ifndef USER_DS
#define USER_DS       (USER_DATA)
#endif
#define USER_PROGRAM  (2)
#define SUPER_DATA    (5)
#ifndef KERNEL_DS
#define KERNEL_DS     (SUPER_DATA)
#endif
#define SUPER_PROGRAM (6)
#define CPU_SPACE     (7)
 
#ifndef __ASSEMBLY__
 
/*
 * Uh, these should become the main single-value transfer routines..
 * They automatically use the right size if we just have the right
 * pointer type..
 */
#define put_user(x,ptr) __put_user((unsigned long)(x),(ptr),sizeof(*(ptr)))
#define get_user(ptr) ((__typeof__(*(ptr)))__get_user((ptr),sizeof(*(ptr))))
 
/*
 * This is a silly but good way to make sure that
 * the __put_user function is indeed always optimized,
 * and that we use the correct sizes..
 */
extern int bad_user_access_length(void);
 
#define __ptr(x) ((unsigned long *)(x))
 
static inline void __put_user(unsigned long x, void * y, int size)
{
        switch (size) {
                case 1:
                        *(char *) y = x;
                        break;
                case 2:
                        *(short *) y = x;
                        break;
                case 4:
                        *(int *) y = x;
                        break;
                case 8:
                        *(long *) y = x;
                        break;
                default:
                        bad_user_access_length();
        }
}
 
static inline unsigned long __get_user(const void * y, int size)
{
        switch (size) {
                case 1:
                        return *(unsigned char *) y;
                case 2:
                        return *(unsigned short *) y;
                case 4:
                        return *(unsigned int *) y;
                case 8:
                        return *(unsigned long *) y;
                default:
                        return bad_user_access_length();
        }
}
#undef __ptr
 
/*
 * These are deprecated..
 *
 * Use "put_user()" and "get_user()" with the proper pointer types instead.
 */
 
#define get_fs_byte(addr) __get_user((const unsigned char *)(addr),1)
#define get_fs_word(addr) __get_user((const unsigned short *)(addr),2)
#define get_fs_long(addr) __get_user((const unsigned int *)(addr),4)
 
#define put_fs_byte(x,addr) __put_user((x),(unsigned char *)(addr),1)
#define put_fs_word(x,addr) __put_user((x),(unsigned short *)(addr),2)
#define put_fs_long(x,addr) __put_user((x),(unsigned int *)(addr),4)
 
#ifdef WE_REALLY_WANT_TO_USE_A_BROKEN_INTERFACE
 
static inline unsigned char get_user_byte(const char * addr)
{
        return __get_user(addr,1);
}
 
static inline unsigned short get_user_word(const short *addr)
{
        return __get_user(addr,2);
}
 
static inline unsigned long get_user_long(const int *addr)
{
        return __get_user(addr,4);
}
 
static inline void put_user_byte(char val,char *addr)
{
        __put_user(val, addr, 1);
}
 
static inline void put_user_word(short val,short * addr)
{
        __put_user(val, addr, 2);
}
 
static inline void put_user_long(unsigned long val,int * addr)
{
        __put_user(val, addr, 4);
}
 
#endif
 
#define put_fs_quad(x,addr) put_user_quad((x),(long *)(addr))
 
#define memcpy_fromfs(to, from, n) memcpy((to),(from),(n))
 
#define memcpy_tofs(to, from, n) memcpy((to),(from),(n)) 
 
/*
 * Get/set the SFC/DFC registers for MOVES instructions
 */
 
static inline unsigned long get_fs(void)
{
        return USER_DS;
}
 
static inline unsigned long get_ds(void)
{
    /* return the supervisor data space code */
    return KERNEL_DS;
}
 
static inline void set_fs(unsigned long val)
{
}
 
#endif /* __ASSEMBLY__ */
 
#endif /* _OR32_SEGMENT_H */

Line No.	Rev	Author	Line
1	666	simons	`#ifndef _OR32_SEGMENT_H`
2			`#define _OR32_SEGMENT_H`
3
4			`/* define constants */`
5			`/* Address spaces (FC0-FC2) */`
6			`#define USER_DATA (1)`
7			`#ifndef USER_DS`
8			`#define USER_DS (USER_DATA)`
9			`#endif`
10			`#define USER_PROGRAM (2)`
11			`#define SUPER_DATA (5)`
12			`#ifndef KERNEL_DS`
13			`#define KERNEL_DS (SUPER_DATA)`
14			`#endif`
15			`#define SUPER_PROGRAM (6)`
16			`#define CPU_SPACE (7)`
17
18			`#ifndef __ASSEMBLY__`
19
20			`/*`
21			`* Uh, these should become the main single-value transfer routines..`
22			`* They automatically use the right size if we just have the right`
23			`* pointer type..`
24			`*/`
25			`#define put_user(x,ptr) __put_user((unsigned long)(x),(ptr),sizeof(*(ptr)))`
26			`#define get_user(ptr) ((__typeof__((ptr)))__get_user((ptr),sizeof((ptr))))`
27
28			`/*`
29			`* This is a silly but good way to make sure that`
30			`* the __put_user function is indeed always optimized,`
31			`* and that we use the correct sizes..`
32			`*/`
33			`extern int bad_user_access_length(void);`
34
35			`#define __ptr(x) ((unsigned long *)(x))`
36
37			`static inline void __put_user(unsigned long x, void * y, int size)`
38			`{`
39			`switch (size) {`
40			`case 1:`
41			`(char ) y = x;`
42			`break;`
43			`case 2:`
44			`(short ) y = x;`
45			`break;`
46			`case 4:`
47			`(int ) y = x;`
48			`break;`
49			`case 8:`
50			`(long ) y = x;`
51			`break;`
52			`default:`
53			`bad_user_access_length();`
54			`}`
55			`}`
56
57			`static inline unsigned long __get_user(const void * y, int size)`
58			`{`
59			`switch (size) {`
60			`case 1:`
61			`return (unsigned char ) y;`
62			`case 2:`
63			`return (unsigned short ) y;`
64			`case 4:`
65			`return (unsigned int ) y;`
66			`case 8:`
67			`return (unsigned long ) y;`
68			`default:`
69			`return bad_user_access_length();`
70			`}`
71			`}`
72			`#undef __ptr`
73
74			`/*`
75			`* These are deprecated..`
76			`*`
77			`* Use "put_user()" and "get_user()" with the proper pointer types instead.`
78			`*/`
79
80			`#define get_fs_byte(addr) __get_user((const unsigned char *)(addr),1)`
81			`#define get_fs_word(addr) __get_user((const unsigned short *)(addr),2)`
82			`#define get_fs_long(addr) __get_user((const unsigned int *)(addr),4)`
83
84			`#define put_fs_byte(x,addr) __put_user((x),(unsigned char *)(addr),1)`
85			`#define put_fs_word(x,addr) __put_user((x),(unsigned short *)(addr),2)`
86			`#define put_fs_long(x,addr) __put_user((x),(unsigned int *)(addr),4)`
87
88			`#ifdef WE_REALLY_WANT_TO_USE_A_BROKEN_INTERFACE`
89
90			`static inline unsigned char get_user_byte(const char * addr)`
91			`{`
92			`return __get_user(addr,1);`
93			`}`
94
95			`static inline unsigned short get_user_word(const short *addr)`
96			`{`
97			`return __get_user(addr,2);`
98			`}`
99
100			`static inline unsigned long get_user_long(const int *addr)`
101			`{`
102			`return __get_user(addr,4);`
103			`}`
104
105			`static inline void put_user_byte(char val,char *addr)`
106			`{`
107			`__put_user(val, addr, 1);`
108			`}`
109
110			`static inline void put_user_word(short val,short * addr)`
111			`{`
112			`__put_user(val, addr, 2);`
113			`}`
114
115			`static inline void put_user_long(unsigned long val,int * addr)`
116			`{`
117			`__put_user(val, addr, 4);`
118			`}`
119
120			`#endif`
121
122			`#define put_fs_quad(x,addr) put_user_quad((x),(long *)(addr))`
123
124			`#define memcpy_fromfs(to, from, n) memcpy((to),(from),(n))`
125
126			`#define memcpy_tofs(to, from, n) memcpy((to),(from),(n))`
127
128			`/*`
129			`* Get/set the SFC/DFC registers for MOVES instructions`
130			`*/`
131
132			`static inline unsigned long get_fs(void)`
133			`{`
134			`return USER_DS;`
135			`}`
136
137			`static inline unsigned long get_ds(void)`
138			`{`
139			`/* return the supervisor data space code */`
140			`return KERNEL_DS;`
141			`}`
142
143			`static inline void set_fs(unsigned long val)`
144			`{`
145			`}`
146
147			`#endif /* __ASSEMBLY__ */`
148
149			`#endif /* _OR32_SEGMENT_H */`

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[/] [or1k_old/] [trunk/] [uclinux/] [uClinux-2.0.x/] [include/] [asm-or32/] [segment.h] - Blame information for rev 1782