xref: /openbmc/u-boot/include/linux/compat.h (revision c2012cb4)
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 dev_dbg(dev, fmt, args...)		\
19 	debug(fmt, ##args)
20 #define dev_vdbg(dev, fmt, args...)		\
21 	debug(fmt, ##args)
22 #define dev_info(dev, fmt, args...)		\
23 	printf(fmt, ##args)
24 #define dev_err(dev, fmt, args...)		\
25 	printf(fmt, ##args)
26 #define dev_warn(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(condition) ({						\
110 	int __ret_warn_on = !!(condition);				\
111 	if (unlikely(__ret_warn_on))					\
112 		printf("WARNING in %s line %d\n", __FILE__, __LINE__);	\
113 	unlikely(__ret_warn_on);					\
114 })
115 
116 #define PAGE_SIZE	4096
117 
118 /* drivers/char/random.c */
119 #define get_random_bytes(...)
120 
121 /* include/linux/leds.h */
122 struct led_trigger {};
123 
124 #define DEFINE_LED_TRIGGER(x)		static struct led_trigger *x;
125 enum led_brightness {
126 	LED_OFF		= 0,
127 	LED_HALF	= 127,
128 	LED_FULL	= 255,
129 };
130 
131 static inline void led_trigger_register_simple(const char *name,
132 					struct led_trigger **trigger) {}
133 static inline void led_trigger_unregister_simple(struct led_trigger *trigger) {}
134 static inline void led_trigger_event(struct led_trigger *trigger,
135 					enum led_brightness event) {}
136 
137 /* uapi/linux/limits.h */
138 #define XATTR_LIST_MAX 65536	/* size of extended attribute namelist (64k) */
139 
140 /**
141  * The type used for indexing onto a disc or disc partition.
142  *
143  * Linux always considers sectors to be 512 bytes long independently
144  * of the devices real block size.
145  *
146  * blkcnt_t is the type of the inode's block count.
147  */
148 #ifdef CONFIG_LBDAF
149 typedef u64 sector_t;
150 typedef u64 blkcnt_t;
151 #else
152 typedef unsigned long sector_t;
153 typedef unsigned long blkcnt_t;
154 #endif
155 
156 /* module */
157 #define THIS_MODULE		0
158 #define try_module_get(...)	1
159 #define module_put(...)		do { } while (0)
160 #define module_init(...)
161 #define module_exit(...)
162 #define EXPORT_SYMBOL(...)
163 #define EXPORT_SYMBOL_GPL(...)
164 #define module_param(...)
165 #define module_param_call(...)
166 #define MODULE_PARM_DESC(...)
167 #define MODULE_VERSION(...)
168 #define MODULE_DESCRIPTION(...)
169 #define MODULE_AUTHOR(...)
170 #define MODULE_LICENSE(...)
171 #define MODULE_ALIAS(...)
172 #define __module_get(...)
173 
174 /* character device */
175 #define MKDEV(...)			0
176 #define MAJOR(dev)			0
177 #define MINOR(dev)			0
178 
179 #define alloc_chrdev_region(...)	0
180 #define unregister_chrdev_region(...)
181 
182 #define class_create(...)		__builtin_return_address(0)
183 #define class_create_file(...)		0
184 #define class_register(...)		0
185 #define class_unregister(...)
186 #define class_remove_file(...)
187 #define class_destroy(...)
188 #define misc_register(...)		0
189 #define misc_deregister(...)
190 
191 #define blocking_notifier_call_chain(...) 0
192 
193 #define __initdata
194 #define late_initcall(...)
195 
196 #define dev_set_name(...)		do { } while (0)
197 #define device_register(...)		0
198 #define device_unregister(...)
199 #define volume_sysfs_init(...)		0
200 #define volume_sysfs_close(...)		do { } while (0)
201 
202 #define init_waitqueue_head(...)	do { } while (0)
203 #define wait_event_interruptible(...)	0
204 #define wake_up_interruptible(...)	do { } while (0)
205 #define print_hex_dump(...)		do { } while (0)
206 #define dump_stack(...)			do { } while (0)
207 
208 #define task_pid_nr(x)			0
209 #define set_freezable(...)		do { } while (0)
210 #define try_to_freeze(...)		0
211 #define set_current_state(...)		do { } while (0)
212 #define kthread_should_stop(...)	0
213 #define schedule()			do { } while (0)
214 
215 #define setup_timer(timer, func, data) do {} while (0)
216 #define del_timer_sync(timer) do {} while (0)
217 #define schedule_work(work) do {} while (0)
218 #define INIT_WORK(work, fun) do {} while (0)
219 
220 struct work_struct {};
221 
222 unsigned long copy_from_user(void *dest, const void *src,
223 			     unsigned long count);
224 
225 typedef unused_t spinlock_t;
226 typedef int	wait_queue_head_t;
227 
228 #define spin_lock_init(lock) do {} while (0)
229 #define spin_lock(lock) do {} while (0)
230 #define spin_unlock(lock) do {} while (0)
231 #define spin_lock_irqsave(lock, flags) do { debug("%lu\n", flags); } while (0)
232 #define spin_unlock_irqrestore(lock, flags) do { flags = 0; } while (0)
233 
234 #define DEFINE_MUTEX(...)
235 #define mutex_init(...)
236 #define mutex_lock(...)
237 #define mutex_unlock(...)
238 
239 #define init_rwsem(...)			do { } while (0)
240 #define down_read(...)			do { } while (0)
241 #define down_write(...)			do { } while (0)
242 #define down_write_trylock(...)		1
243 #define up_read(...)			do { } while (0)
244 #define up_write(...)			do { } while (0)
245 
246 #define cond_resched()			do { } while (0)
247 #define yield()				do { } while (0)
248 
249 #define __init
250 #define __exit
251 #define __devinit
252 #define __devinitdata
253 #define __devinitconst
254 
255 #define kthread_create(...)	__builtin_return_address(0)
256 #define kthread_stop(...)	do { } while (0)
257 #define wake_up_process(...)	do { } while (0)
258 
259 struct rw_semaphore { int i; };
260 #define down_write(...)			do { } while (0)
261 #define up_write(...)			do { } while (0)
262 #define down_read(...)			do { } while (0)
263 #define up_read(...)			do { } while (0)
264 struct device {
265 	struct device		*parent;
266 	struct class		*class;
267 	dev_t			devt;	/* dev_t, creates the sysfs "dev" */
268 	void	(*release)(struct device *dev);
269 	/* This is used from drivers/usb/musb-new subsystem only */
270 	void		*driver_data;	/* data private to the driver */
271 	void            *device_data;   /* data private to the device */
272 };
273 struct mutex { int i; };
274 struct kernel_param { int i; };
275 
276 struct cdev {
277 	int owner;
278 	dev_t dev;
279 };
280 #define cdev_init(...)		do { } while (0)
281 #define cdev_add(...)		0
282 #define cdev_del(...)		do { } while (0)
283 
284 #define prandom_u32(...)	0
285 
286 typedef struct {
287 	uid_t val;
288 } kuid_t;
289 
290 typedef struct {
291 	gid_t val;
292 } kgid_t;
293 
294 /* from include/linux/types.h */
295 
296 /**
297  * struct callback_head - callback structure for use with RCU and task_work
298  * @next: next update requests in a list
299  * @func: actual update function to call after the grace period.
300  */
301 struct callback_head {
302 	struct callback_head *next;
303 	void (*func)(struct callback_head *head);
304 };
305 #define rcu_head callback_head
306 enum writeback_sync_modes {
307 	WB_SYNC_NONE,	/* Don't wait on anything */
308 	WB_SYNC_ALL,	/* Wait on every mapping */
309 };
310 
311 /* from include/linux/writeback.h */
312 /*
313  * A control structure which tells the writeback code what to do.  These are
314  * always on the stack, and hence need no locking.  They are always initialised
315  * in a manner such that unspecified fields are set to zero.
316  */
317 struct writeback_control {
318 	long nr_to_write;		/* Write this many pages, and decrement
319 					   this for each page written */
320 	long pages_skipped;		/* Pages which were not written */
321 
322 	/*
323 	 * For a_ops->writepages(): if start or end are non-zero then this is
324 	 * a hint that the filesystem need only write out the pages inside that
325 	 * byterange.  The byte at `end' is included in the writeout request.
326 	 */
327 	loff_t range_start;
328 	loff_t range_end;
329 
330 	enum writeback_sync_modes sync_mode;
331 
332 	unsigned for_kupdate:1;		/* A kupdate writeback */
333 	unsigned for_background:1;	/* A background writeback */
334 	unsigned tagged_writepages:1;	/* tag-and-write to avoid livelock */
335 	unsigned for_reclaim:1;		/* Invoked from the page allocator */
336 	unsigned range_cyclic:1;	/* range_start is cyclic */
337 	unsigned for_sync:1;		/* sync(2) WB_SYNC_ALL writeback */
338 };
339 
340 void *kmemdup(const void *src, size_t len, gfp_t gfp);
341 
342 typedef int irqreturn_t;
343 
344 struct timer_list {};
345 struct notifier_block {};
346 
347 typedef unsigned long dmaaddr_t;
348 
349 #define pm_runtime_get_sync(dev) do {} while (0)
350 #define pm_runtime_put(dev) do {} while (0)
351 #define pm_runtime_put_sync(dev) do {} while (0)
352 #define pm_runtime_use_autosuspend(dev) do {} while (0)
353 #define pm_runtime_set_autosuspend_delay(dev, delay) do {} while (0)
354 #define pm_runtime_enable(dev) do {} while (0)
355 
356 #define IRQ_NONE 0
357 #define IRQ_HANDLED 1
358 #define IRQ_WAKE_THREAD 2
359 
360 #define dev_set_drvdata(dev, data) do {} while (0)
361 
362 #define enable_irq(...)
363 #define disable_irq(...)
364 #define disable_irq_wake(irq) do {} while (0)
365 #define enable_irq_wake(irq) -EINVAL
366 #define free_irq(irq, data) do {} while (0)
367 #define request_irq(nr, f, flags, nm, data) 0
368 
369 #endif
370