xref: /openbmc/u-boot/include/linux/compat.h (revision a2a6a679)
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(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 /* module */
153 #define THIS_MODULE		0
154 #define try_module_get(...)	1
155 #define module_put(...)		do { } while (0)
156 #define module_init(...)
157 #define module_exit(...)
158 #define EXPORT_SYMBOL(...)
159 #define EXPORT_SYMBOL_GPL(...)
160 #define module_param(...)
161 #define module_param_call(...)
162 #define MODULE_PARM_DESC(...)
163 #define MODULE_VERSION(...)
164 #define MODULE_DESCRIPTION(...)
165 #define MODULE_AUTHOR(...)
166 #define MODULE_LICENSE(...)
167 #define MODULE_ALIAS(...)
168 #define __module_get(...)
169 
170 /* character device */
171 #define MKDEV(...)			0
172 #define MAJOR(dev)			0
173 #define MINOR(dev)			0
174 
175 #define alloc_chrdev_region(...)	0
176 #define unregister_chrdev_region(...)
177 
178 #define class_create(...)		__builtin_return_address(0)
179 #define class_create_file(...)		0
180 #define class_register(...)		0
181 #define class_unregister(...)
182 #define class_remove_file(...)
183 #define class_destroy(...)
184 #define misc_register(...)		0
185 #define misc_deregister(...)
186 
187 #define blocking_notifier_call_chain(...) 0
188 
189 #define __initdata
190 #define late_initcall(...)
191 
192 #define dev_set_name(...)		do { } while (0)
193 #define device_register(...)		0
194 #define device_unregister(...)
195 #define volume_sysfs_init(...)		0
196 #define volume_sysfs_close(...)		do { } while (0)
197 
198 #define init_waitqueue_head(...)	do { } while (0)
199 #define wait_event_interruptible(...)	0
200 #define wake_up_interruptible(...)	do { } while (0)
201 #define print_hex_dump(...)		do { } while (0)
202 #define dump_stack(...)			do { } while (0)
203 
204 #define task_pid_nr(x)			0
205 #define set_freezable(...)		do { } while (0)
206 #define try_to_freeze(...)		0
207 #define set_current_state(...)		do { } while (0)
208 #define kthread_should_stop(...)	0
209 #define schedule()			do { } while (0)
210 
211 #define setup_timer(timer, func, data) do {} while (0)
212 #define del_timer_sync(timer) do {} while (0)
213 #define schedule_work(work) do {} while (0)
214 #define INIT_WORK(work, fun) do {} while (0)
215 
216 struct work_struct {};
217 
218 unsigned long copy_from_user(void *dest, const void *src,
219 			     unsigned long count);
220 
221 typedef unused_t spinlock_t;
222 typedef int	wait_queue_head_t;
223 
224 #define spin_lock_init(lock) do {} while (0)
225 #define spin_lock(lock) do {} while (0)
226 #define spin_unlock(lock) do {} while (0)
227 #define spin_lock_irqsave(lock, flags) do { debug("%lu\n", flags); } while (0)
228 #define spin_unlock_irqrestore(lock, flags) do { flags = 0; } while (0)
229 
230 #define DEFINE_MUTEX(...)
231 #define mutex_init(...)
232 #define mutex_lock(...)
233 #define mutex_unlock(...)
234 
235 #define init_rwsem(...)			do { } while (0)
236 #define down_read(...)			do { } while (0)
237 #define down_write(...)			do { } while (0)
238 #define down_write_trylock(...)		1
239 #define up_read(...)			do { } while (0)
240 #define up_write(...)			do { } while (0)
241 
242 #define cond_resched()			do { } while (0)
243 #define yield()				do { } while (0)
244 
245 #define __init
246 #define __exit
247 #define __devinit
248 #define __devinitdata
249 #define __devinitconst
250 
251 #define kthread_create(...)	__builtin_return_address(0)
252 #define kthread_stop(...)	do { } while (0)
253 #define wake_up_process(...)	do { } while (0)
254 
255 struct rw_semaphore { int i; };
256 #define down_write(...)			do { } while (0)
257 #define up_write(...)			do { } while (0)
258 #define down_read(...)			do { } while (0)
259 #define up_read(...)			do { } while (0)
260 struct device {
261 	struct device		*parent;
262 	struct class		*class;
263 	dev_t			devt;	/* dev_t, creates the sysfs "dev" */
264 	void	(*release)(struct device *dev);
265 	/* This is used from drivers/usb/musb-new subsystem only */
266 	void		*driver_data;	/* data private to the driver */
267 	void            *device_data;   /* data private to the device */
268 };
269 struct mutex { int i; };
270 struct kernel_param { int i; };
271 
272 struct cdev {
273 	int owner;
274 	dev_t dev;
275 };
276 #define cdev_init(...)		do { } while (0)
277 #define cdev_add(...)		0
278 #define cdev_del(...)		do { } while (0)
279 
280 #define prandom_u32(...)	0
281 
282 typedef struct {
283 	uid_t val;
284 } kuid_t;
285 
286 typedef struct {
287 	gid_t val;
288 } kgid_t;
289 
290 /* from include/linux/types.h */
291 
292 /**
293  * struct callback_head - callback structure for use with RCU and task_work
294  * @next: next update requests in a list
295  * @func: actual update function to call after the grace period.
296  */
297 struct callback_head {
298 	struct callback_head *next;
299 	void (*func)(struct callback_head *head);
300 };
301 #define rcu_head callback_head
302 enum writeback_sync_modes {
303 	WB_SYNC_NONE,	/* Don't wait on anything */
304 	WB_SYNC_ALL,	/* Wait on every mapping */
305 };
306 
307 /* from include/linux/writeback.h */
308 /*
309  * A control structure which tells the writeback code what to do.  These are
310  * always on the stack, and hence need no locking.  They are always initialised
311  * in a manner such that unspecified fields are set to zero.
312  */
313 struct writeback_control {
314 	long nr_to_write;		/* Write this many pages, and decrement
315 					   this for each page written */
316 	long pages_skipped;		/* Pages which were not written */
317 
318 	/*
319 	 * For a_ops->writepages(): if start or end are non-zero then this is
320 	 * a hint that the filesystem need only write out the pages inside that
321 	 * byterange.  The byte at `end' is included in the writeout request.
322 	 */
323 	loff_t range_start;
324 	loff_t range_end;
325 
326 	enum writeback_sync_modes sync_mode;
327 
328 	unsigned for_kupdate:1;		/* A kupdate writeback */
329 	unsigned for_background:1;	/* A background writeback */
330 	unsigned tagged_writepages:1;	/* tag-and-write to avoid livelock */
331 	unsigned for_reclaim:1;		/* Invoked from the page allocator */
332 	unsigned range_cyclic:1;	/* range_start is cyclic */
333 	unsigned for_sync:1;		/* sync(2) WB_SYNC_ALL writeback */
334 };
335 
336 void *kmemdup(const void *src, size_t len, gfp_t gfp);
337 
338 typedef int irqreturn_t;
339 
340 struct timer_list {};
341 struct notifier_block {};
342 
343 typedef unsigned long dmaaddr_t;
344 
345 #define pm_runtime_get_sync(dev) do {} while (0)
346 #define pm_runtime_put(dev) do {} while (0)
347 #define pm_runtime_put_sync(dev) do {} while (0)
348 #define pm_runtime_use_autosuspend(dev) do {} while (0)
349 #define pm_runtime_set_autosuspend_delay(dev, delay) do {} while (0)
350 #define pm_runtime_enable(dev) do {} while (0)
351 
352 #define IRQ_NONE 0
353 #define IRQ_HANDLED 1
354 #define IRQ_WAKE_THREAD 2
355 
356 #define dev_set_drvdata(dev, data) do {} while (0)
357 
358 #define enable_irq(...)
359 #define disable_irq(...)
360 #define disable_irq_wake(irq) do {} while (0)
361 #define enable_irq_wake(irq) -EINVAL
362 #define free_irq(irq, data) do {} while (0)
363 #define request_irq(nr, f, flags, nm, data) 0
364 
365 #endif
366