Rev 3482 | Rev 4103 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
1408 | serge | 1 | #ifndef _LINUX_KERNEL_H |
2 | #define _LINUX_KERNEL_H |
||
3 | |||
4 | /* |
||
5 | * 'kernel.h' contains some often-used function prototypes etc |
||
6 | */ |
||
7 | |||
8 | #ifdef __KERNEL__ |
||
9 | |||
10 | #include |
||
11 | #include |
||
12 | #include |
||
13 | #include |
||
1970 | serge | 14 | #include |
1408 | serge | 15 | |
2967 | Serge | 16 | #include |
17 | |||
18 | #define __init |
||
19 | |||
1964 | serge | 20 | #define USHRT_MAX ((u16)(~0U)) |
21 | #define SHRT_MAX ((s16)(USHRT_MAX>>1)) |
||
22 | #define SHRT_MIN ((s16)(-SHRT_MAX - 1)) |
||
1408 | serge | 23 | #define INT_MAX ((int)(~0U>>1)) |
24 | #define INT_MIN (-INT_MAX - 1) |
||
25 | #define UINT_MAX (~0U) |
||
26 | #define LONG_MAX ((long)(~0UL>>1)) |
||
27 | #define LONG_MIN (-LONG_MAX - 1) |
||
28 | #define ULONG_MAX (~0UL) |
||
29 | #define LLONG_MAX ((long long)(~0ULL>>1)) |
||
30 | #define LLONG_MIN (-LLONG_MAX - 1) |
||
31 | #define ULLONG_MAX (~0ULL) |
||
3031 | serge | 32 | #define SIZE_MAX (~(size_t)0) |
1408 | serge | 33 | |
34 | #define ALIGN(x,a) __ALIGN_MASK(x,(typeof(x))(a)-1) |
||
35 | #define __ALIGN_MASK(x,mask) (((x)+(mask))&~(mask)) |
||
36 | #define PTR_ALIGN(p, a) ((typeof(p))ALIGN((unsigned long)(p), (a))) |
||
37 | #define IS_ALIGNED(x, a) (((x) & ((typeof(x))(a) - 1)) == 0) |
||
38 | |||
3747 | Serge | 39 | |
40 | #define __round_mask(x, y) ((__typeof__(x))((y)-1)) |
||
41 | #define round_up(x, y) ((((x)-1) | __round_mask(x, y))+1) |
||
42 | |||
3039 | serge | 43 | /* The `const' in roundup() prevents gcc-3.3 from calling __divdi3 */ |
44 | #define roundup(x, y) ( \ |
||
45 | { \ |
||
46 | const typeof(y) __y = y; \ |
||
47 | (((x) + (__y - 1)) / __y) * __y; \ |
||
48 | } \ |
||
49 | ) |
||
2967 | Serge | 50 | |
51 | #define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d)) |
||
52 | #define DIV_ROUND_CLOSEST(x, divisor)( \ |
||
53 | { \ |
||
54 | typeof(divisor) __divisor = divisor; \ |
||
55 | (((x) + ((__divisor) / 2)) / (__divisor)); \ |
||
56 | } \ |
||
57 | ) |
||
58 | |||
1408 | serge | 59 | /** |
60 | * upper_32_bits - return bits 32-63 of a number |
||
61 | * @n: the number we're accessing |
||
62 | * |
||
63 | * A basic shift-right of a 64- or 32-bit quantity. Use this to suppress |
||
64 | * the "right shift count >= width of type" warning when that quantity is |
||
65 | * 32-bits. |
||
66 | */ |
||
67 | #define upper_32_bits(n) ((u32)(((n) >> 16) >> 16)) |
||
68 | |||
69 | /** |
||
70 | * lower_32_bits - return bits 0-31 of a number |
||
71 | * @n: the number we're accessing |
||
72 | */ |
||
73 | #define lower_32_bits(n) ((u32)(n)) |
||
74 | |||
75 | #define KERN_EMERG "<0>" /* system is unusable */ |
||
76 | #define KERN_ALERT "<1>" /* action must be taken immediately */ |
||
77 | #define KERN_CRIT "<2>" /* critical conditions */ |
||
78 | #define KERN_ERR "<3>" /* error conditions */ |
||
79 | #define KERN_WARNING "<4>" /* warning conditions */ |
||
80 | #define KERN_NOTICE "<5>" /* normal but significant condition */ |
||
81 | #define KERN_INFO "<6>" /* informational */ |
||
82 | #define KERN_DEBUG "<7>" /* debug-level messages */ |
||
1970 | serge | 83 | extern const char hex_asc[]; |
84 | #define hex_asc_lo(x) hex_asc[((x) & 0x0f)] |
||
85 | #define hex_asc_hi(x) hex_asc[((x) & 0xf0) >> 4] |
||
1408 | serge | 86 | |
1970 | serge | 87 | static inline char *pack_hex_byte(char *buf, u8 byte) |
88 | { |
||
89 | *buf++ = hex_asc_hi(byte); |
||
90 | *buf++ = hex_asc_lo(byte); |
||
91 | return buf; |
||
92 | } |
||
93 | |||
3480 | Serge | 94 | enum { |
95 | DUMP_PREFIX_NONE, |
||
96 | DUMP_PREFIX_ADDRESS, |
||
97 | DUMP_PREFIX_OFFSET |
||
98 | }; |
||
1970 | serge | 99 | |
3480 | Serge | 100 | int hex_to_bin(char ch); |
101 | int hex2bin(u8 *dst, const char *src, size_t count); |
||
1970 | serge | 102 | |
3480 | Serge | 103 | |
1408 | serge | 104 | //int printk(const char *fmt, ...); |
105 | |||
106 | #define printk(fmt, arg...) dbgprintf(fmt , ##arg) |
||
107 | |||
108 | |||
109 | /* |
||
110 | * min()/max()/clamp() macros that also do |
||
111 | * strict type-checking.. See the |
||
112 | * "unnecessary" pointer comparison. |
||
113 | */ |
||
114 | #define min(x, y) ({ \ |
||
115 | typeof(x) _min1 = (x); \ |
||
116 | typeof(y) _min2 = (y); \ |
||
117 | (void) (&_min1 == &_min2); \ |
||
118 | _min1 < _min2 ? _min1 : _min2; }) |
||
119 | |||
120 | #define max(x, y) ({ \ |
||
121 | typeof(x) _max1 = (x); \ |
||
122 | typeof(y) _max2 = (y); \ |
||
123 | (void) (&_max1 == &_max2); \ |
||
124 | _max1 > _max2 ? _max1 : _max2; }) |
||
125 | |||
1970 | serge | 126 | #define min3(x, y, z) ({ \ |
127 | typeof(x) _min1 = (x); \ |
||
128 | typeof(y) _min2 = (y); \ |
||
129 | typeof(z) _min3 = (z); \ |
||
130 | (void) (&_min1 == &_min2); \ |
||
131 | (void) (&_min1 == &_min3); \ |
||
132 | _min1 < _min2 ? (_min1 < _min3 ? _min1 : _min3) : \ |
||
133 | (_min2 < _min3 ? _min2 : _min3); }) |
||
134 | |||
135 | #define max3(x, y, z) ({ \ |
||
136 | typeof(x) _max1 = (x); \ |
||
137 | typeof(y) _max2 = (y); \ |
||
138 | typeof(z) _max3 = (z); \ |
||
139 | (void) (&_max1 == &_max2); \ |
||
140 | (void) (&_max1 == &_max3); \ |
||
141 | _max1 > _max2 ? (_max1 > _max3 ? _max1 : _max3) : \ |
||
142 | (_max2 > _max3 ? _max2 : _max3); }) |
||
143 | |||
144 | /** |
||
145 | * min_not_zero - return the minimum that is _not_ zero, unless both are zero |
||
146 | * @x: value1 |
||
147 | * @y: value2 |
||
148 | */ |
||
149 | #define min_not_zero(x, y) ({ \ |
||
150 | typeof(x) __x = (x); \ |
||
151 | typeof(y) __y = (y); \ |
||
152 | __x == 0 ? __y : ((__y == 0) ? __x : min(__x, __y)); }) |
||
153 | |||
154 | /** |
||
155 | * clamp - return a value clamped to a given range with strict typechecking |
||
156 | * @val: current value |
||
157 | * @min: minimum allowable value |
||
158 | * @max: maximum allowable value |
||
159 | * |
||
160 | * This macro does strict typechecking of min/max to make sure they are of the |
||
161 | * same type as val. See the unnecessary pointer comparisons. |
||
162 | */ |
||
163 | #define clamp(val, min, max) ({ \ |
||
164 | typeof(val) __val = (val); \ |
||
165 | typeof(min) __min = (min); \ |
||
166 | typeof(max) __max = (max); \ |
||
167 | (void) (&__val == &__min); \ |
||
168 | (void) (&__val == &__max); \ |
||
169 | __val = __val < __min ? __min: __val; \ |
||
170 | __val > __max ? __max: __val; }) |
||
171 | |||
1408 | serge | 172 | /* |
173 | * ..and if you can't take the strict |
||
174 | * types, you can specify one yourself. |
||
175 | * |
||
176 | * Or not use min/max/clamp at all, of course. |
||
177 | */ |
||
178 | #define min_t(type, x, y) ({ \ |
||
179 | type __min1 = (x); \ |
||
180 | type __min2 = (y); \ |
||
181 | __min1 < __min2 ? __min1: __min2; }) |
||
182 | |||
183 | #define max_t(type, x, y) ({ \ |
||
184 | type __max1 = (x); \ |
||
185 | type __max2 = (y); \ |
||
186 | __max1 > __max2 ? __max1: __max2; }) |
||
187 | |||
188 | /** |
||
189 | * container_of - cast a member of a structure out to the containing structure |
||
190 | * @ptr: the pointer to the member. |
||
191 | * @type: the type of the container struct this is embedded in. |
||
192 | * @member: the name of the member within the struct. |
||
193 | * |
||
194 | */ |
||
195 | #define container_of(ptr, type, member) ({ \ |
||
196 | const typeof( ((type *)0)->member ) *__mptr = (ptr); \ |
||
197 | (type *)( (char *)__mptr - offsetof(type,member) );}) |
||
198 | |||
199 | |||
200 | static inline void *kcalloc(size_t n, size_t size, uint32_t flags) |
||
201 | { |
||
202 | if (n != 0 && size > ULONG_MAX / n) |
||
203 | return NULL; |
||
204 | return kzalloc(n * size, 0); |
||
205 | } |
||
206 | |||
1968 | serge | 207 | |
1412 | serge | 208 | void free (void *ptr); |
209 | |||
1408 | serge | 210 | #endif /* __KERNEL__ */ |
211 | |||
212 | typedef unsigned long pgprotval_t; |
||
213 | |||
214 | typedef struct pgprot { pgprotval_t pgprot; } pgprot_t; |
||
215 | |||
3262 | Serge | 216 | struct file |
217 | { |
||
218 | struct page **pages; /* physical memory backend */ |
||
219 | unsigned int count; |
||
220 | unsigned int allocated; |
||
221 | void *vma; |
||
222 | }; |
||
223 | |||
1408 | serge | 224 | struct vm_area_struct {}; |
225 | struct address_space {}; |
||
226 | |||
1430 | serge | 227 | struct device |
228 | { |
||
229 | struct device *parent; |
||
230 | void *driver_data; |
||
231 | }; |
||
232 | |||
233 | static inline void dev_set_drvdata(struct device *dev, void *data) |
||
234 | { |
||
235 | dev->driver_data = data; |
||
236 | } |
||
237 | |||
238 | static inline void *dev_get_drvdata(struct device *dev) |
||
239 | { |
||
240 | return dev->driver_data; |
||
241 | } |
||
242 | |||
1408 | serge | 243 | #define preempt_disable() do { } while (0) |
244 | #define preempt_enable_no_resched() do { } while (0) |
||
245 | #define preempt_enable() do { } while (0) |
||
246 | #define preempt_check_resched() do { } while (0) |
||
247 | |||
248 | #define preempt_disable_notrace() do { } while (0) |
||
249 | #define preempt_enable_no_resched_notrace() do { } while (0) |
||
250 | #define preempt_enable_notrace() do { } while (0) |
||
251 | |||
1964 | serge | 252 | #define in_dbg_master() (0) |
1408 | serge | 253 | |
2005 | serge | 254 | #define HZ 100 |
255 | |||
256 | #define time_after(a,b) \ |
||
257 | (typecheck(unsigned long, a) && \ |
||
258 | typecheck(unsigned long, b) && \ |
||
259 | ((long)(b) - (long)(a) < 0)) |
||
260 | |||
2967 | Serge | 261 | struct tvec_base; |
2005 | serge | 262 | |
2967 | Serge | 263 | struct timer_list { |
264 | struct list_head entry; |
||
265 | unsigned long expires; |
||
266 | |||
267 | void (*function)(unsigned long); |
||
268 | unsigned long data; |
||
269 | |||
270 | // struct tvec_base *base; |
||
271 | }; |
||
272 | |||
273 | struct timespec { |
||
274 | long tv_sec; /* seconds */ |
||
275 | long tv_nsec; /* nanoseconds */ |
||
276 | }; |
||
277 | |||
278 | |||
279 | #define build_mmio_read(name, size, type, reg, barrier) \ |
||
280 | static inline type name(const volatile void __iomem *addr) \ |
||
281 | { type ret; asm volatile("mov" size " %1,%0":reg (ret) \ |
||
282 | :"m" (*(volatile type __force *)addr) barrier); return ret; } |
||
283 | |||
284 | #define build_mmio_write(name, size, type, reg, barrier) \ |
||
285 | static inline void name(type val, volatile void __iomem *addr) \ |
||
286 | { asm volatile("mov" size " %0,%1": :reg (val), \ |
||
287 | "m" (*(volatile type __force *)addr) barrier); } |
||
288 | |||
289 | build_mmio_read(readb, "b", unsigned char, "=q", :"memory") |
||
290 | build_mmio_read(readw, "w", unsigned short, "=r", :"memory") |
||
291 | build_mmio_read(readl, "l", unsigned int, "=r", :"memory") |
||
292 | |||
293 | build_mmio_read(__readb, "b", unsigned char, "=q", ) |
||
294 | build_mmio_read(__readw, "w", unsigned short, "=r", ) |
||
295 | build_mmio_read(__readl, "l", unsigned int, "=r", ) |
||
296 | |||
297 | build_mmio_write(writeb, "b", unsigned char, "q", :"memory") |
||
298 | build_mmio_write(writew, "w", unsigned short, "r", :"memory") |
||
299 | build_mmio_write(writel, "l", unsigned int, "r", :"memory") |
||
300 | |||
301 | build_mmio_write(__writeb, "b", unsigned char, "q", ) |
||
302 | build_mmio_write(__writew, "w", unsigned short, "r", ) |
||
303 | build_mmio_write(__writel, "l", unsigned int, "r", ) |
||
304 | |||
305 | #define readb_relaxed(a) __readb(a) |
||
306 | #define readw_relaxed(a) __readw(a) |
||
307 | #define readl_relaxed(a) __readl(a) |
||
308 | #define __raw_readb __readb |
||
309 | #define __raw_readw __readw |
||
310 | #define __raw_readl __readl |
||
311 | |||
312 | #define __raw_writeb __writeb |
||
313 | #define __raw_writew __writew |
||
314 | #define __raw_writel __writel |
||
315 | |||
316 | static inline __u64 readq(const volatile void __iomem *addr) |
||
317 | { |
||
318 | const volatile u32 __iomem *p = addr; |
||
319 | u32 low, high; |
||
320 | |||
321 | low = readl(p); |
||
322 | high = readl(p + 1); |
||
323 | |||
324 | return low + ((u64)high << 32); |
||
325 | } |
||
326 | |||
327 | static inline void writeq(__u64 val, volatile void __iomem *addr) |
||
328 | { |
||
329 | writel(val, addr); |
||
330 | writel(val >> 32, addr+4); |
||
331 | } |
||
332 | |||
3031 | serge | 333 | #define swap(a, b) \ |
334 | do { typeof(a) __tmp = (a); (a) = (b); (b) = __tmp; } while (0) |
||
2967 | Serge | 335 | |
3031 | serge | 336 | |
2967 | Serge | 337 | #define mmiowb() barrier() |
338 | |||
339 | #define dev_err(dev, format, arg...) \ |
||
340 | printk("Error %s " format, __func__ , ## arg) |
||
341 | |||
342 | #define dev_warn(dev, format, arg...) \ |
||
343 | printk("Warning %s " format, __func__ , ## arg) |
||
344 | |||
345 | #define dev_info(dev, format, arg...) \ |
||
346 | printk("Info %s " format , __func__, ## arg) |
||
347 | |||
3480 | Serge | 348 | //#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)])) |
349 | #define BUILD_BUG_ON(condition) |
||
2967 | Serge | 350 | |
351 | struct page |
||
352 | { |
||
353 | unsigned int addr; |
||
354 | }; |
||
355 | |||
3243 | Serge | 356 | #define page_to_phys(page) ((dma_addr_t)(page)) |
2967 | Serge | 357 | |
358 | struct vm_fault { |
||
359 | unsigned int flags; /* FAULT_FLAG_xxx flags */ |
||
360 | pgoff_t pgoff; /* Logical page offset based on vma */ |
||
361 | void __user *virtual_address; /* Faulting virtual address */ |
||
362 | |||
363 | struct page *page; /* ->fault handlers should return a |
||
364 | * page here, unless VM_FAULT_NOPAGE |
||
365 | * is set (which is also implied by |
||
366 | * VM_FAULT_ERROR). |
||
367 | */ |
||
368 | }; |
||
369 | |||
3031 | serge | 370 | struct pagelist { |
371 | dma_addr_t *page; |
||
372 | unsigned int nents; |
||
373 | }; |
||
2967 | Serge | 374 | |
3391 | Serge | 375 | #define page_cache_release(page) FreePage(page_to_phys(page)) |
3243 | Serge | 376 | |
377 | #define alloc_page(gfp_mask) (struct page*)AllocPage() |
||
378 | |||
3391 | Serge | 379 | #define __free_page(page) FreePage(page_to_phys(page)) |
380 | |||
381 | #define get_page(a) |
||
382 | #define put_page(a) |
||
383 | #define set_pages_uc(a,b) |
||
384 | #define set_pages_wb(a,b) |
||
385 | |||
386 | #define pci_map_page(dev, page, offset, size, direction) \ |
||
387 | (dma_addr_t)( (offset)+page_to_phys(page)) |
||
388 | |||
389 | #define pci_unmap_page(dev, dma_address, size, direction) |
||
390 | |||
391 | #define GFP_TEMPORARY 0 |
||
392 | #define __GFP_NOWARN 0 |
||
393 | #define __GFP_NORETRY 0 |
||
394 | #define GFP_NOWAIT 0 |
||
395 | |||
396 | #define IS_ENABLED(a) 0 |
||
397 | |||
398 | |||
399 | #define ACCESS_ONCE(x) (*(volatile typeof(x) *)&(x)) |
||
400 | |||
401 | #define RCU_INIT_POINTER(p, v) \ |
||
402 | do { \ |
||
403 | p = (typeof(*v) __force __rcu *)(v); \ |
||
404 | } while (0) |
||
405 | |||
406 | |||
407 | #define rcu_dereference_raw(p) ({ \ |
||
408 | typeof(p) _________p1 = ACCESS_ONCE(p); \ |
||
409 | (_________p1); \ |
||
410 | }) |
||
411 | #define rcu_assign_pointer(p, v) \ |
||
412 | ({ \ |
||
413 | if (!__builtin_constant_p(v) || \ |
||
414 | ((v) != NULL)) \ |
||
415 | (p) = (v); \ |
||
416 | }) |
||
417 | |||
3482 | Serge | 418 | |
419 | unsigned int hweight16(unsigned int w); |
||
420 | |||
421 | #define cpufreq_quick_get_max(x) GetCpuFreq() |
||
422 | |||
423 | extern unsigned int tsc_khz; |
||
424 | |||
3747 | Serge | 425 | #define on_each_cpu(func,info,wait) \ |
426 | ({ \ |
||
427 | func(info); \ |
||
428 | 0; \ |
||
429 | }) |
||
430 | |||
431 | |||
1408 | serge | 432 | #endif><>>>>>>>>7>6>5>4>3>2>1>0> |
433 |