2 * Copyright (C) 2007 Oracle. All rights reserved.
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public
6 * License v2 as published by the Free Software Foundation.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * General Public License for more details.
13 * You should have received a copy of the GNU General Public
14 * License along with this program; if not, write to the
15 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
16 * Boston, MA 021110-1307, USA.
37 #define get_cpu_var(p) (p)
38 #define __get_cpu_var(p) (p)
39 #define BITS_PER_LONG (__SIZEOF_LONG__ * 8)
40 #define __GFP_BITS_SHIFT 20
41 #define __GFP_BITS_MASK ((int)((1 << __GFP_BITS_SHIFT) - 1))
45 #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
48 #define ULONG_MAX (~0UL)
53 #define __force __attribute__((force))
54 #define __bitwise__ __attribute__((bitwise))
62 * Since we're using primitive definitions from kernel-space, we need to
63 * define __KERNEL__ so that system header files know which definitions
67 #include <asm/types.h>
73 * Continuing to define __KERNEL__ breaks others parts of the code, so
74 * we can just undefine it now that we have the correct headers...
78 typedef unsigned int u32
;
79 typedef unsigned int __u32
;
80 typedef unsigned long long u64
;
81 typedef unsigned char u8
;
82 typedef unsigned short u16
;
86 struct vma_shared
{ int prio_tree_node
; };
87 struct vm_area_struct
{
88 unsigned long vm_pgoff
;
89 unsigned long vm_start
;
91 struct vma_shared shared
;
102 #define mutex_init(m) \
107 static inline void mutex_lock(struct mutex
*m
)
112 static inline void mutex_unlock(struct mutex
*m
)
117 static inline int mutex_is_locked(struct mutex
*m
)
119 return (m
->lock
!= 1);
122 #define cond_resched() do { } while (0)
123 #define preempt_enable() do { } while (0)
124 #define preempt_disable() do { } while (0)
126 #define BITOP_MASK(nr) (1UL << ((nr) % BITS_PER_LONG))
127 #define BITOP_WORD(nr) ((nr) / BITS_PER_LONG)
129 #ifndef __attribute_const__
130 #define __attribute_const__ __attribute__((__const__))
134 * __set_bit - Set a bit in memory
135 * @nr: the bit to set
136 * @addr: the address to start counting from
138 * Unlike set_bit(), this function is non-atomic and may be reordered.
139 * If it's called on the same region of memory simultaneously, the effect
140 * may be that only one operation succeeds.
142 static inline void __set_bit(int nr
, volatile unsigned long *addr
)
144 unsigned long mask
= BITOP_MASK(nr
);
145 unsigned long *p
= ((unsigned long *)addr
) + BITOP_WORD(nr
);
150 static inline void __clear_bit(int nr
, volatile unsigned long *addr
)
152 unsigned long mask
= BITOP_MASK(nr
);
153 unsigned long *p
= ((unsigned long *)addr
) + BITOP_WORD(nr
);
159 * test_bit - Determine whether a bit is set
160 * @nr: bit number to test
161 * @addr: Address to start counting from
163 static inline int test_bit(int nr
, const volatile unsigned long *addr
)
165 return 1UL & (addr
[BITOP_WORD(nr
)] >> (nr
& (BITS_PER_LONG
-1)));
171 #define MAX_ERRNO 4095
172 #define IS_ERR_VALUE(x) ((x) >= (unsigned long)-MAX_ERRNO)
174 static inline void *ERR_PTR(long error
)
176 return (void *) error
;
179 static inline long PTR_ERR(const void *ptr
)
184 static inline long IS_ERR(const void *ptr
)
186 return IS_ERR_VALUE((unsigned long)ptr
);
192 #define min(x,y) ({ \
193 typeof(x) _x = (x); \
194 typeof(y) _y = (y); \
195 (void) (&_x == &_y); \
196 _x < _y ? _x : _y; })
198 #define max(x,y) ({ \
199 typeof(x) _x = (x); \
200 typeof(y) _y = (y); \
201 (void) (&_x == &_y); \
202 _x > _y ? _x : _y; })
204 #define min_t(type,x,y) \
205 ({ type __x = (x); type __y = (y); __x < __y ? __x: __y; })
206 #define max_t(type,x,y) \
207 ({ type __x = (x); type __y = (y); __x > __y ? __x: __y; })
212 #define printk(fmt, args...) fprintf(stderr, fmt, ##args)
219 #define kmalloc(x, y) malloc(x)
220 #define kzalloc(x, y) calloc(1, x)
221 #define kstrdup(x, y) strdup(x)
222 #define kfree(x) free(x)
224 #define BUG_ON(c) assert(!(c))
225 #define WARN_ON(c) assert(!(c))
228 #ifdef __compiler_offsetof
229 #define offsetof(TYPE,MEMBER) __compiler_offsetof(TYPE,MEMBER)
231 #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
234 #define container_of(ptr, type, member) ({ \
235 const typeof( ((type *)0)->member ) *__mptr = (ptr); \
236 (type *)( (char *)__mptr - offsetof(type,member) );})
238 #define __CHECK_ENDIAN__
239 #define __bitwise __bitwise__
244 typedef u16 __bitwise __le16
;
245 typedef u16 __bitwise __be16
;
246 typedef u32 __bitwise __le32
;
247 typedef u32 __bitwise __be32
;
248 typedef u64 __bitwise __le64
;
249 typedef u64 __bitwise __be64
;
251 /* Macros to generate set/get funcs for the struct fields
252 * assume there is a lefoo_to_cpu for every type, so lets make a simple
255 #define le8_to_cpu(v) (v)
256 #define cpu_to_le8(v) (v)
259 #if __BYTE_ORDER == __BIG_ENDIAN
260 #define cpu_to_le64(x) ((__force __le64)(u64)(bswap_64(x)))
261 #define le64_to_cpu(x) ((__force u64)(__le64)(bswap_64(x)))
262 #define cpu_to_le32(x) ((__force __le32)(u32)(bswap_32(x)))
263 #define le32_to_cpu(x) ((__force u32)(__le32)(bswap_32(x)))
264 #define cpu_to_le16(x) ((__force __le16)(u16)(bswap_16(x)))
265 #define le16_to_cpu(x) ((__force u16)(__le16)(bswap_16(x)))
267 #define cpu_to_le64(x) ((__force __le64)(u64)(x))
268 #define le64_to_cpu(x) ((__force u64)(__le64)(x))
269 #define cpu_to_le32(x) ((__force __le32)(u32)(x))
270 #define le32_to_cpu(x) ((__force u32)(__le32)(x))
271 #define cpu_to_le16(x) ((__force __le16)(u16)(x))
272 #define le16_to_cpu(x) ((__force u16)(__le16)(x))
275 struct __una_u16
{ u16 x
; } __attribute__((__packed__
));
276 struct __una_u32
{ u32 x
; } __attribute__((__packed__
));
277 struct __una_u64
{ u64 x
; } __attribute__((__packed__
));
279 #define get_unaligned_le8(p) (*((u8 *)(p)))
280 #define put_unaligned_le8(val,p) ((*((u8 *)(p))) = (val))
281 #define get_unaligned_le16(p) le16_to_cpu(((const struct __una_u16 *)(p))->x)
282 #define put_unaligned_le16(val,p) (((struct __una_u16 *)(p))->x = cpu_to_le16(val))
283 #define get_unaligned_le32(p) le32_to_cpu(((const struct __una_u32 *)(p))->x)
284 #define put_unaligned_le32(val,p) (((struct __una_u32 *)(p))->x = cpu_to_le32(val))
285 #define get_unaligned_le64(p) le64_to_cpu(((const struct __una_u64 *)(p))->x)
286 #define put_unaligned_le64(val,p) (((struct __una_u64 *)(p))->x = cpu_to_le64(val))