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c66d2821 PMF |
1 | #ifndef KERNELCOMPAT_H |
2 | #define KERNELCOMPAT_H | |
3 | ||
1ae7f074 PMF |
4 | #include <kcompat.h> |
5 | ||
59b161cd PMF |
6 | #include "compiler.h" |
7 | ||
c66d2821 | 8 | #include <string.h> |
0b0cd937 | 9 | #include <sys/time.h> |
c66d2821 PMF |
10 | |
11 | #define container_of(ptr, type, member) ({ \ | |
12 | const typeof( ((type *)0)->member ) *__mptr = (ptr); \ | |
13 | (type *)( (char *)__mptr - offsetof(type,member) );}) | |
14 | ||
b6bf28ec PMF |
15 | #define KERN_DEBUG "" |
16 | #define KERN_NOTICE "" | |
17 | #define KERN_INFO "" | |
18 | #define KERN_ERR "" | |
19 | #define KERN_ALERT "" | |
bb07823d | 20 | #define KERN_WARNING "" |
c66d2821 | 21 | |
59b161cd PMF |
22 | /* ERROR OPS */ |
23 | ||
24 | #define MAX_ERRNO 4095 | |
25 | ||
26 | #define IS_ERR_VALUE(x) unlikely((x) >= (unsigned long)-MAX_ERRNO) | |
27 | ||
c66d2821 PMF |
28 | static inline void *ERR_PTR(long error) |
29 | { | |
59b161cd | 30 | return (void *) error; |
c66d2821 PMF |
31 | } |
32 | ||
59b161cd PMF |
33 | static inline long PTR_ERR(const void *ptr) |
34 | { | |
35 | return (long) ptr; | |
36 | } | |
37 | ||
38 | static inline long IS_ERR(const void *ptr) | |
39 | { | |
40 | return IS_ERR_VALUE((unsigned long)ptr); | |
41 | } | |
42 | ||
43 | ||
44 | /* FIXED SIZE INTEGERS */ | |
c66d2821 | 45 | |
1ae7f074 | 46 | //#include <stdint.h> |
c66d2821 | 47 | |
1ae7f074 PMF |
48 | //typedef uint8_t u8; |
49 | //typedef uint16_t u16; | |
50 | //typedef uint32_t u32; | |
51 | //typedef uint64_t u64; | |
c66d2821 | 52 | |
b6bf28ec PMF |
53 | #define min_t(type, x, y) ({ \ |
54 | type __min1 = (x); \ | |
55 | type __min2 = (y); \ | |
56 | __min1 < __min2 ? __min1: __min2; }) | |
57 | ||
58 | #define max_t(type, x, y) ({ \ | |
59 | type __max1 = (x); \ | |
60 | type __max2 = (y); \ | |
61 | __max1 > __max2 ? __max1: __max2; }) | |
62 | ||
63 | ||
64 | /* MUTEXES */ | |
c66d2821 PMF |
65 | |
66 | #include <pthread.h> | |
67 | ||
68 | #define DEFINE_MUTEX(m) pthread_mutex_t (m) = PTHREAD_MUTEX_INITIALIZER; | |
ba6459ba | 69 | #define DECLARE_MUTEX(m) extern pthread_mutex_t (m); |
c66d2821 PMF |
70 | |
71 | #define mutex_lock(m) pthread_mutex_lock(m) | |
72 | ||
73 | #define mutex_unlock(m) pthread_mutex_unlock(m) | |
74 | ||
bb07823d | 75 | |
b6bf28ec | 76 | /* MALLOCATION */ |
c66d2821 PMF |
77 | |
78 | #include <stdlib.h> | |
79 | ||
80 | #define kmalloc(s, t) malloc(s) | |
ba6459ba | 81 | #define kzalloc(s, t) zmalloc(s) |
c66d2821 PMF |
82 | #define kfree(p) free((void *)p) |
83 | #define kstrdup(s, t) strdup(s) | |
84 | ||
ba6459ba PMF |
85 | #define zmalloc(s) calloc(1, s) |
86 | ||
bb07823d PMF |
87 | #define GFP_KERNEL |
88 | ||
b6bf28ec | 89 | /* PRINTK */ |
c66d2821 PMF |
90 | |
91 | #include <stdio.h> | |
92 | #define printk(fmt, args...) printf(fmt, ## args) | |
93 | ||
59b161cd PMF |
94 | /* MEMORY BARRIERS */ |
95 | ||
16a93583 | 96 | //#define smp_mb__after_atomic_inc() do {} while(0) |
59b161cd | 97 | |
6cb88bc0 PMF |
98 | ///* RCU */ |
99 | // | |
100 | //#include "urcu.h" | |
101 | //#define call_rcu_sched(a,b) b(a); synchronize_rcu() | |
102 | //#define rcu_barrier_sched() do {} while(0) /* this nop is ok if call_rcu_sched does a synchronize_rcu() */ | |
103 | //#define rcu_read_lock_sched_notrace() rcu_read_lock() | |
104 | //#define rcu_read_unlock_sched_notrace() rcu_read_unlock() | |
c66d2821 | 105 | |
59b161cd | 106 | /* ATOMICITY */ |
b6bf28ec | 107 | |
16a93583 PMF |
108 | //#include <signal.h> |
109 | // | |
110 | //static inline int atomic_dec_and_test(atomic_t *p) | |
111 | //{ | |
112 | // (p->counter)--; | |
113 | // return !p->counter; | |
114 | //} | |
115 | // | |
116 | //static inline void atomic_set(atomic_t *p, int v) | |
117 | //{ | |
118 | // p->counter=v; | |
119 | //} | |
120 | // | |
121 | //static inline void atomic_inc(atomic_t *p) | |
122 | //{ | |
123 | // p->counter++; | |
124 | //} | |
125 | // | |
126 | //static int atomic_read(atomic_t *p) | |
127 | //{ | |
128 | // return p->counter; | |
129 | //} | |
130 | // | |
131 | //#define atomic_long_t atomic_t | |
132 | //#define atomic_long_set atomic_set | |
133 | //#define atomic_long_read atomic_read | |
bb07823d | 134 | |
09938485 | 135 | //#define __xg(x) ((volatile long *)(x)) |
bb07823d | 136 | |
16a93583 PMF |
137 | //#define cmpxchg(ptr, o, n) \ |
138 | // ((__typeof__(*(ptr)))__cmpxchg((ptr), (unsigned long)(o), \ | |
bb07823d PMF |
139 | (unsigned long)(n), sizeof(*(ptr)))) |
140 | ||
c1dea0b3 | 141 | //#define local_cmpxchg cmpxchg |
16a93583 | 142 | //#define local_cmpxchg(l, o, n) (cmpxchg(&((l)->a.counter), (o), (n))) |
c1dea0b3 | 143 | |
16a93583 | 144 | //#define atomic_long_cmpxchg(v, old, new) (cmpxchg(&((v)->counter), (old), (new))) |
bb07823d PMF |
145 | |
146 | ||
5f54827b PMF |
147 | /* LOCAL OPS */ |
148 | ||
c1dea0b3 | 149 | //typedef int local_t; |
16a93583 PMF |
150 | //typedef struct |
151 | //{ | |
152 | // atomic_long_t a; | |
153 | //} local_t; | |
154 | // | |
155 | // | |
156 | //static inline void local_inc(local_t *l) | |
157 | //{ | |
158 | // (l->a.counter)++; | |
159 | //} | |
160 | // | |
161 | //static inline void local_set(local_t *l, int v) | |
162 | //{ | |
163 | // l->a.counter = v; | |
164 | //} | |
165 | // | |
166 | //static inline void local_add(int v, local_t *l) | |
167 | //{ | |
168 | // l->a.counter += v; | |
169 | //} | |
170 | // | |
171 | //static int local_add_return(int v, local_t *l) | |
172 | //{ | |
173 | // return l->a.counter += v; | |
174 | //} | |
175 | // | |
176 | //static inline int local_read(local_t *l) | |
177 | //{ | |
178 | // return l->a.counter; | |
179 | //} | |
5f54827b PMF |
180 | |
181 | ||
182 | /* ATTRIBUTES */ | |
b6bf28ec | 183 | |
59b161cd | 184 | #define ____cacheline_aligned |
5f54827b PMF |
185 | #define __init |
186 | #define __exit | |
c66d2821 | 187 | |
b6bf28ec PMF |
188 | /* MATH */ |
189 | ||
190 | static inline unsigned int hweight32(unsigned int w) | |
191 | { | |
192 | unsigned int res = w - ((w >> 1) & 0x55555555); | |
193 | res = (res & 0x33333333) + ((res >> 2) & 0x33333333); | |
194 | res = (res + (res >> 4)) & 0x0F0F0F0F; | |
195 | res = res + (res >> 8); | |
196 | return (res + (res >> 16)) & 0x000000FF; | |
197 | } | |
198 | ||
199 | static inline int fls(int x) | |
200 | { | |
201 | int r; | |
202 | //ust// #ifdef CONFIG_X86_CMOV | |
203 | asm("bsrl %1,%0\n\t" | |
204 | "cmovzl %2,%0" | |
205 | : "=&r" (r) : "rm" (x), "rm" (-1)); | |
206 | //ust// #else | |
207 | //ust// asm("bsrl %1,%0\n\t" | |
208 | //ust// "jnz 1f\n\t" | |
209 | //ust// "movl $-1,%0\n" | |
210 | //ust// "1:" : "=r" (r) : "rm" (x)); | |
211 | //ust// #endif | |
212 | return r + 1; | |
213 | } | |
214 | ||
215 | static __inline__ int get_count_order(unsigned int count) | |
216 | { | |
217 | int order; | |
218 | ||
219 | order = fls(count) - 1; | |
220 | if (count & (count - 1)) | |
221 | order++; | |
222 | return order; | |
223 | } | |
224 | ||
225 | ||
5f54827b PMF |
226 | |
227 | ||
228 | #include <unistd.h> | |
229 | ||
230 | #define ALIGN(x,a) __ALIGN_MASK(x,(typeof(x))(a)-1) | |
231 | #define __ALIGN_MASK(x,mask) (((x)+(mask))&~(mask)) | |
232 | #define PAGE_ALIGN(addr) ALIGN(addr, PAGE_SIZE) | |
233 | #define PAGE_SIZE sysconf(_SC_PAGE_SIZE) | |
bb07823d | 234 | #define PAGE_MASK (PAGE_SIZE-1) |
5f54827b PMF |
235 | |
236 | ||
237 | ||
238 | ||
b6bf28ec PMF |
239 | /* ARRAYS */ |
240 | ||
241 | #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0])) | |
242 | ||
243 | /* TRACE CLOCK */ | |
244 | ||
98963de4 PMF |
245 | //ust// static inline u64 trace_clock_read64(void) |
246 | //ust// { | |
247 | //ust// uint32_t low; | |
248 | //ust// uint32_t high; | |
249 | //ust// uint64_t retval; | |
250 | //ust// __asm__ volatile ("rdtsc\n" : "=a" (low), "=d" (high)); | |
251 | //ust// | |
252 | //ust// retval = high; | |
253 | //ust// retval <<= 32; | |
254 | //ust// return retval | low; | |
255 | //ust// } | |
256 | ||
b6bf28ec PMF |
257 | static inline u64 trace_clock_read64(void) |
258 | { | |
98963de4 PMF |
259 | struct timeval tv; |
260 | u64 retval; | |
261 | ||
262 | gettimeofday(&tv, NULL); | |
263 | retval = tv.tv_sec; | |
264 | retval *= 1000000; | |
265 | retval += tv.tv_usec; | |
266 | ||
267 | return retval; | |
b6bf28ec PMF |
268 | } |
269 | ||
98963de4 | 270 | static inline u64 trace_clock_frequency(void) |
b6bf28ec | 271 | { |
98963de4 | 272 | return 1000000LL; |
b6bf28ec PMF |
273 | } |
274 | ||
275 | static inline u32 trace_clock_freq_scale(void) | |
276 | { | |
98963de4 | 277 | return 1; |
b6bf28ec PMF |
278 | } |
279 | ||
8d938dbd PMF |
280 | |
281 | /* LISTS */ | |
282 | ||
283 | #define list_add_rcu list_add | |
284 | #define list_for_each_entry_rcu list_for_each_entry | |
285 | ||
286 | ||
287 | #define EXPORT_SYMBOL_GPL(a) /*nothing*/ | |
288 | ||
ba6459ba PMF |
289 | #define smp_processor_id() (-1) |
290 | ||
c66d2821 | 291 | #endif /* KERNELCOMPAT_H */ |