xref: /openbmc/u-boot/include/linux/compat.h (revision 23ff8633)
1 #ifndef _LINUX_COMPAT_H_
2 #define _LINUX_COMPAT_H_
3 
4 #include <malloc.h>
5 #include <linux/types.h>
6 #include <linux/err.h>
7 #include <linux/kernel.h>
8 
9 struct unused {};
10 typedef struct unused unused_t;
11 
12 struct p_current{
13        int pid;
14 };
15 
16 extern struct p_current *current;
17 
18 #define ndelay(x)	udelay(1)
19 
20 #define dev_dbg(dev, fmt, args...)		\
21 	debug(fmt, ##args)
22 #define dev_vdbg(dev, fmt, args...)		\
23 	debug(fmt, ##args)
24 #define dev_info(dev, fmt, args...)		\
25 	printf(fmt, ##args)
26 #define dev_err(dev, fmt, args...)		\
27 	printf(fmt, ##args)
28 #define printk	printf
29 #define printk_once	printf
30 
31 #define KERN_EMERG
32 #define KERN_ALERT
33 #define KERN_CRIT
34 #define KERN_ERR
35 #define KERN_WARNING
36 #define KERN_NOTICE
37 #define KERN_INFO
38 #define KERN_DEBUG
39 
40 #define GFP_ATOMIC ((gfp_t) 0)
41 #define GFP_KERNEL ((gfp_t) 0)
42 #define GFP_NOFS ((gfp_t) 0)
43 #define GFP_USER ((gfp_t) 0)
44 #define __GFP_NOWARN ((gfp_t) 0)
45 #define __GFP_ZERO	((__force gfp_t)0x8000u)	/* Return zeroed page on success */
46 
47 void *kmalloc(size_t size, int flags);
48 
49 static inline void *kzalloc(size_t size, gfp_t flags)
50 {
51 	return kmalloc(size, flags | __GFP_ZERO);
52 }
53 
54 static inline void *kmalloc_array(size_t n, size_t size, gfp_t flags)
55 {
56 	if (size != 0 && n > SIZE_MAX / size)
57 		return NULL;
58 	return kmalloc(n * size, flags | __GFP_ZERO);
59 }
60 
61 static inline void *kcalloc(size_t n, size_t size, gfp_t flags)
62 {
63 	return kmalloc_array(n, size, flags | __GFP_ZERO);
64 }
65 
66 #define vmalloc(size)	kmalloc(size, 0)
67 #define __vmalloc(size, flags, pgsz)	kmalloc(size, flags)
68 static inline void *vzalloc(unsigned long size)
69 {
70 	return kzalloc(size, 0);
71 }
72 static inline void kfree(const void *block)
73 {
74 	free((void *)block);
75 }
76 static inline void vfree(const void *addr)
77 {
78 	free((void *)addr);
79 }
80 
81 struct kmem_cache { int sz; };
82 
83 struct kmem_cache *get_mem(int element_sz);
84 #define kmem_cache_create(a, sz, c, d, e)	get_mem(sz)
85 void *kmem_cache_alloc(struct kmem_cache *obj, int flag);
86 static inline void kmem_cache_free(struct kmem_cache *cachep, void *obj)
87 {
88 	free(obj);
89 }
90 static inline void kmem_cache_destroy(struct kmem_cache *cachep)
91 {
92 	free(cachep);
93 }
94 
95 #define DECLARE_WAITQUEUE(...)	do { } while (0)
96 #define add_wait_queue(...)	do { } while (0)
97 #define remove_wait_queue(...)	do { } while (0)
98 
99 #define KERNEL_VERSION(a,b,c)	(((a) << 16) + ((b) << 8) + (c))
100 
101 #ifndef BUG
102 #define BUG() do { \
103 	printf("U-Boot BUG at %s:%d!\n", __FILE__, __LINE__); \
104 } while (0)
105 
106 #define BUG_ON(condition) do { if (condition) BUG(); } while(0)
107 #endif /* BUG */
108 
109 #define WARN_ON(x) if (x) {printf("WARNING in %s line %d\n" \
110 				  , __FILE__, __LINE__); }
111 
112 #define PAGE_SIZE	4096
113 
114 /* drivers/char/random.c */
115 #define get_random_bytes(...)
116 
117 /* include/linux/leds.h */
118 struct led_trigger {};
119 
120 #define DEFINE_LED_TRIGGER(x)		static struct led_trigger *x;
121 enum led_brightness {
122 	LED_OFF		= 0,
123 	LED_HALF	= 127,
124 	LED_FULL	= 255,
125 };
126 
127 static inline void led_trigger_register_simple(const char *name,
128 					struct led_trigger **trigger) {}
129 static inline void led_trigger_unregister_simple(struct led_trigger *trigger) {}
130 static inline void led_trigger_event(struct led_trigger *trigger,
131 					enum led_brightness event) {}
132 
133 /* uapi/linux/limits.h */
134 #define XATTR_LIST_MAX 65536	/* size of extended attribute namelist (64k) */
135 
136 /**
137  * The type used for indexing onto a disc or disc partition.
138  *
139  * Linux always considers sectors to be 512 bytes long independently
140  * of the devices real block size.
141  *
142  * blkcnt_t is the type of the inode's block count.
143  */
144 #ifdef CONFIG_LBDAF
145 typedef u64 sector_t;
146 typedef u64 blkcnt_t;
147 #else
148 typedef unsigned long sector_t;
149 typedef unsigned long blkcnt_t;
150 #endif
151 
152 #define ENOTSUPP	524	/* Operation is not supported */
153 
154 /* module */
155 #define THIS_MODULE		0
156 #define try_module_get(...)	1
157 #define module_put(...)		do { } while (0)
158 #define module_init(...)
159 #define module_exit(...)
160 #define EXPORT_SYMBOL(...)
161 #define EXPORT_SYMBOL_GPL(...)
162 #define module_param(...)
163 #define module_param_call(...)
164 #define MODULE_PARM_DESC(...)
165 #define MODULE_VERSION(...)
166 #define MODULE_DESCRIPTION(...)
167 #define MODULE_AUTHOR(...)
168 #define MODULE_LICENSE(...)
169 #define MODULE_ALIAS(...)
170 #define __module_get(...)
171 
172 /* character device */
173 #define MKDEV(...)			0
174 #define MAJOR(dev)			0
175 #define MINOR(dev)			0
176 
177 #define alloc_chrdev_region(...)	0
178 #define unregister_chrdev_region(...)
179 
180 #define class_create(...)		__builtin_return_address(0)
181 #define class_create_file(...)		0
182 #define class_register(...)		0
183 #define class_unregister(...)
184 #define class_remove_file(...)
185 #define class_destroy(...)
186 #define misc_register(...)		0
187 #define misc_deregister(...)
188 
189 #define blocking_notifier_call_chain(...) 0
190 
191 #define __initdata
192 #define late_initcall(...)
193 
194 #define dev_set_name(...)		do { } while (0)
195 #define device_register(...)		0
196 #define device_unregister(...)
197 #define volume_sysfs_init(...)		0
198 #define volume_sysfs_close(...)		do { } while (0)
199 
200 #define init_waitqueue_head(...)	do { } while (0)
201 #define wait_event_interruptible(...)	0
202 #define wake_up_interruptible(...)	do { } while (0)
203 #define print_hex_dump(...)		do { } while (0)
204 #define dump_stack(...)			do { } while (0)
205 
206 #define task_pid_nr(x)			0
207 #define set_freezable(...)		do { } while (0)
208 #define try_to_freeze(...)		0
209 #define set_current_state(...)		do { } while (0)
210 #define kthread_should_stop(...)	0
211 #define schedule()			do { } while (0)
212 
213 #define setup_timer(timer, func, data) do {} while (0)
214 #define del_timer_sync(timer) do {} while (0)
215 #define schedule_work(work) do {} while (0)
216 #define INIT_WORK(work, fun) do {} while (0)
217 
218 struct work_struct {};
219 
220 unsigned long copy_from_user(void *dest, const void *src,
221 			     unsigned long count);
222 
223 typedef unused_t spinlock_t;
224 typedef int	wait_queue_head_t;
225 
226 #define spin_lock_init(lock) do {} while (0)
227 #define spin_lock(lock) do {} while (0)
228 #define spin_unlock(lock) do {} while (0)
229 #define spin_lock_irqsave(lock, flags) do { debug("%lu\n", flags); } while (0)
230 #define spin_unlock_irqrestore(lock, flags) do { flags = 0; } while (0)
231 
232 #define DEFINE_MUTEX(...)
233 #define mutex_init(...)
234 #define mutex_lock(...)
235 #define mutex_unlock(...)
236 
237 #define init_rwsem(...)			do { } while (0)
238 #define down_read(...)			do { } while (0)
239 #define down_write(...)			do { } while (0)
240 #define down_write_trylock(...)		1
241 #define up_read(...)			do { } while (0)
242 #define up_write(...)			do { } while (0)
243 
244 #define cond_resched()			do { } while (0)
245 #define yield()				do { } while (0)
246 
247 #define __init
248 #define __exit
249 #define __devinit
250 #define __devinitdata
251 #define __devinitconst
252 
253 #define kthread_create(...)	__builtin_return_address(0)
254 #define kthread_stop(...)	do { } while (0)
255 #define wake_up_process(...)	do { } while (0)
256 
257 struct rw_semaphore { int i; };
258 #define down_write(...)			do { } while (0)
259 #define up_write(...)			do { } while (0)
260 #define down_read(...)			do { } while (0)
261 #define up_read(...)			do { } while (0)
262 struct device {
263 	struct device		*parent;
264 	struct class		*class;
265 	dev_t			devt;	/* dev_t, creates the sysfs "dev" */
266 	void	(*release)(struct device *dev);
267 	/* This is used from drivers/usb/musb-new subsystem only */
268 	void		*driver_data;	/* data private to the driver */
269 	void            *device_data;   /* data private to the device */
270 };
271 struct mutex { int i; };
272 struct kernel_param { int i; };
273 
274 struct cdev {
275 	int owner;
276 	dev_t dev;
277 };
278 #define cdev_init(...)		do { } while (0)
279 #define cdev_add(...)		0
280 #define cdev_del(...)		do { } while (0)
281 
282 #define prandom_u32(...)	0
283 
284 typedef struct {
285 	uid_t val;
286 } kuid_t;
287 
288 typedef struct {
289 	gid_t val;
290 } kgid_t;
291 
292 /* from include/linux/types.h */
293 
294 /**
295  * struct callback_head - callback structure for use with RCU and task_work
296  * @next: next update requests in a list
297  * @func: actual update function to call after the grace period.
298  */
299 struct callback_head {
300 	struct callback_head *next;
301 	void (*func)(struct callback_head *head);
302 };
303 #define rcu_head callback_head
304 enum writeback_sync_modes {
305 	WB_SYNC_NONE,	/* Don't wait on anything */
306 	WB_SYNC_ALL,	/* Wait on every mapping */
307 };
308 
309 /* from include/linux/writeback.h */
310 /*
311  * A control structure which tells the writeback code what to do.  These are
312  * always on the stack, and hence need no locking.  They are always initialised
313  * in a manner such that unspecified fields are set to zero.
314  */
315 struct writeback_control {
316 	long nr_to_write;		/* Write this many pages, and decrement
317 					   this for each page written */
318 	long pages_skipped;		/* Pages which were not written */
319 
320 	/*
321 	 * For a_ops->writepages(): if start or end are non-zero then this is
322 	 * a hint that the filesystem need only write out the pages inside that
323 	 * byterange.  The byte at `end' is included in the writeout request.
324 	 */
325 	loff_t range_start;
326 	loff_t range_end;
327 
328 	enum writeback_sync_modes sync_mode;
329 
330 	unsigned for_kupdate:1;		/* A kupdate writeback */
331 	unsigned for_background:1;	/* A background writeback */
332 	unsigned tagged_writepages:1;	/* tag-and-write to avoid livelock */
333 	unsigned for_reclaim:1;		/* Invoked from the page allocator */
334 	unsigned range_cyclic:1;	/* range_start is cyclic */
335 	unsigned for_sync:1;		/* sync(2) WB_SYNC_ALL writeback */
336 };
337 
338 void *kmemdup(const void *src, size_t len, gfp_t gfp);
339 
340 typedef int irqreturn_t;
341 
342 struct timer_list {};
343 struct notifier_block {};
344 
345 typedef unsigned long dmaaddr_t;
346 
347 #define pm_runtime_get_sync(dev) do {} while (0)
348 #define pm_runtime_put(dev) do {} while (0)
349 #define pm_runtime_put_sync(dev) do {} while (0)
350 #define pm_runtime_use_autosuspend(dev) do {} while (0)
351 #define pm_runtime_set_autosuspend_delay(dev, delay) do {} while (0)
352 #define pm_runtime_enable(dev) do {} while (0)
353 
354 #define IRQ_NONE 0
355 #define IRQ_HANDLED 1
356 #define IRQ_WAKE_THREAD 2
357 
358 #define dev_set_drvdata(dev, data) do {} while (0)
359 
360 #define enable_irq(...)
361 #define disable_irq(...)
362 #define disable_irq_wake(irq) do {} while (0)
363 #define enable_irq_wake(irq) -EINVAL
364 #define free_irq(irq, data) do {} while (0)
365 #define request_irq(nr, f, flags, nm, data) 0
366 
367 #endif
368