1 #ifndef _LINUX_COMPAT_H_
2 #define _LINUX_COMPAT_H_
8 #include <asm/processor.h>
10 #include <linux/types.h>
11 #include <linux/err.h>
12 #include <linux/kernel.h>
15 #include <xen/events.h>
19 typedef struct unused unused_t;
25 extern struct p_current *current;
27 /* avoid conflict with <dm/device.h> */
44 #define dev_dbg(dev, fmt, args...) \
46 #define dev_vdbg(dev, fmt, args...) \
48 #define dev_info(dev, fmt, args...) \
50 #define dev_err(dev, fmt, args...) \
52 #define dev_warn(dev, fmt, args...) \
55 #define netdev_emerg(dev, fmt, args...) \
57 #define netdev_alert(dev, fmt, args...) \
59 #define netdev_crit(dev, fmt, args...) \
61 #define netdev_err(dev, fmt, args...) \
63 #define netdev_warn(dev, fmt, args...) \
65 #define netdev_notice(dev, fmt, args...) \
67 #define netdev_info(dev, fmt, args...) \
69 #define netdev_dbg(dev, fmt, args...) \
71 #define netdev_vdbg(dev, fmt, args...) \
74 #define GFP_ATOMIC ((gfp_t) 0)
75 #define GFP_KERNEL ((gfp_t) 0)
76 #define GFP_NOFS ((gfp_t) 0)
77 #define GFP_USER ((gfp_t) 0)
78 #define __GFP_NOWARN ((gfp_t) 0)
79 #define __GFP_ZERO ((__force gfp_t)0x8000u) /* Return zeroed page on success */
81 void *kmalloc(size_t size, int flags);
83 static inline void *kzalloc(size_t size, gfp_t flags)
85 return kmalloc(size, flags | __GFP_ZERO);
88 static inline void *kmalloc_array(size_t n, size_t size, gfp_t flags)
90 if (size != 0 && n > SIZE_MAX / size)
92 return kmalloc(n * size, flags | __GFP_ZERO);
95 static inline void *kcalloc(size_t n, size_t size, gfp_t flags)
97 return kmalloc_array(n, size, flags | __GFP_ZERO);
100 #define vmalloc(size) kmalloc(size, 0)
101 #define __vmalloc(size, flags, pgsz) kmalloc(size, flags)
102 static inline void *vzalloc(unsigned long size)
104 return kzalloc(size, 0);
106 static inline void kfree(const void *block)
110 static inline void vfree(const void *addr)
115 struct kmem_cache { int sz; };
117 struct kmem_cache *get_mem(int element_sz);
118 #define kmem_cache_create(a, sz, c, d, e) get_mem(sz)
119 void *kmem_cache_alloc(struct kmem_cache *obj, int flag);
120 static inline void kmem_cache_free(struct kmem_cache *cachep, void *obj)
124 static inline void kmem_cache_destroy(struct kmem_cache *cachep)
129 #define DECLARE_WAITQUEUE(...) do { } while (0)
130 #define add_wait_queue(...) do { } while (0)
131 #define remove_wait_queue(...) do { } while (0)
134 #define eventchn_poll()
137 #define __wait_event_timeout(condition, timeout, ret) \
139 ulong __ret = ret; /* explicit shadow */ \
140 ulong start = get_timer(0); \
147 if ((get_timer(start) > timeout) || ctrlc()) { \
157 * wait_event_timeout() - Wait until the event occurs before the timeout.
158 * @wr_head: The wait queue to wait on.
159 * @condition: Expression for the event to wait for.
160 * @timeout: Maximum waiting time.
162 * We wait until the @condition evaluates to %true (succeed) or
163 * %false (@timeout elapsed).
166 * 0 - if the @condition evaluated to %false after the @timeout elapsed
167 * 1 - if the @condition evaluated to %true
169 #define wait_event_timeout(wq_head, condition, timeout) \
175 __ret = __wait_event_timeout(condition, timeout, __ret);\
179 #define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
181 /* This is also defined in ARMv8's mmu.h */
183 #define PAGE_SIZE 4096
186 /* drivers/char/random.c */
187 #define get_random_bytes(...)
189 /* include/linux/leds.h */
190 struct led_trigger {};
192 #define DEFINE_LED_TRIGGER(x) static struct led_trigger *x;
193 enum led_brightness {
199 static inline void led_trigger_register_simple(const char *name,
200 struct led_trigger **trigger) {}
201 static inline void led_trigger_unregister_simple(struct led_trigger *trigger) {}
202 static inline void led_trigger_event(struct led_trigger *trigger,
203 enum led_brightness event) {}
205 /* uapi/linux/limits.h */
206 #define XATTR_LIST_MAX 65536 /* size of extended attribute namelist (64k) */
209 * The type used for indexing onto a disc or disc partition.
211 * Linux always considers sectors to be 512 bytes long independently
212 * of the devices real block size.
214 * blkcnt_t is the type of the inode's block count.
217 typedef u64 sector_t;
218 typedef u64 blkcnt_t;
220 typedef unsigned long sector_t;
221 typedef unsigned long blkcnt_t;
225 #define THIS_MODULE 0
226 #define try_module_get(...) 1
227 #define module_put(...) do { } while (0)
228 #define module_init(...)
229 #define module_exit(...)
230 #define EXPORT_SYMBOL(...)
231 #define EXPORT_SYMBOL_GPL(...)
232 #define module_param(...)
233 #define module_param_call(...)
234 #define MODULE_PARM_DESC(...)
235 #define MODULE_VERSION(...)
236 #define MODULE_DESCRIPTION(...)
237 #define MODULE_AUTHOR(...)
238 #define MODULE_LICENSE(...)
239 #define MODULE_ALIAS(...)
240 #define __module_get(...)
242 /* character device */
247 #define alloc_chrdev_region(...) 0
248 #define unregister_chrdev_region(...)
250 #define class_create(...) __builtin_return_address(0)
251 #define class_create_file(...) 0
252 #define class_register(...) 0
253 #define class_unregister(...)
254 #define class_remove_file(...)
255 #define class_destroy(...)
256 #define misc_register(...) 0
257 #define misc_deregister(...)
259 #define blocking_notifier_call_chain(...) 0
262 #define late_initcall(...)
264 #define dev_set_name(...) do { } while (0)
265 #define device_register(...) 0
266 #define device_unregister(...)
267 #define volume_sysfs_init(...) 0
268 #define volume_sysfs_close(...) do { } while (0)
270 #define init_waitqueue_head(...) do { } while (0)
271 #define wait_event_interruptible(...) 0
272 #define wake_up_interruptible(...) do { } while (0)
273 #define dump_stack(...) do { } while (0)
275 #define task_pid_nr(x) 0
276 #define set_freezable(...) do { } while (0)
277 #define try_to_freeze(...) 0
278 #define set_current_state(...) do { } while (0)
279 #define kthread_should_stop(...) 0
280 #define schedule() do { } while (0)
282 #define setup_timer(timer, func, data) do {} while (0)
283 #define del_timer_sync(timer) do {} while (0)
284 #define schedule_work(work) do {} while (0)
285 #define INIT_WORK(work, fun) do {} while (0)
287 struct work_struct {};
289 unsigned long copy_from_user(void *dest, const void *src,
290 unsigned long count);
292 typedef unused_t spinlock_t;
293 typedef int wait_queue_head_t;
295 #define spin_lock_init(lock) do {} while (0)
296 #define spin_lock(lock) do {} while (0)
297 #define spin_unlock(lock) do {} while (0)
298 #define spin_lock_irqsave(lock, flags) do { debug("%lu\n", flags); } while (0)
299 #define spin_unlock_irqrestore(lock, flags) do { flags = 0; } while (0)
301 #define DEFINE_MUTEX(...)
302 #define mutex_init(...)
303 #define mutex_lock(...)
304 #define mutex_unlock(...)
306 #define init_rwsem(...) do { } while (0)
307 #define down_read(...) do { } while (0)
308 #define down_write(...) do { } while (0)
309 #define down_write_trylock(...) 1
310 #define up_read(...) do { } while (0)
311 #define up_write(...) do { } while (0)
313 #define cond_resched() do { } while (0)
314 #define yield() do { } while (0)
319 #define __devinitdata
320 #define __devinitconst
322 #define kthread_create(...) __builtin_return_address(0)
323 #define kthread_stop(...) do { } while (0)
324 #define wake_up_process(...) do { } while (0)
326 struct rw_semaphore { int i; };
327 #define down_write(...) do { } while (0)
328 #define up_write(...) do { } while (0)
329 #define down_read(...) do { } while (0)
330 #define up_read(...) do { } while (0)
332 struct device *parent;
334 dev_t devt; /* dev_t, creates the sysfs "dev" */
335 void (*release)(struct device *dev);
336 /* This is used from drivers/usb/musb-new subsystem only */
337 void *driver_data; /* data private to the driver */
338 void *device_data; /* data private to the device */
340 struct mutex { int i; };
341 struct kernel_param { int i; };
347 #define cdev_init(...) do { } while (0)
348 #define cdev_add(...) 0
349 #define cdev_del(...) do { } while (0)
351 #define prandom_u32(...) 0
361 /* from include/linux/types.h */
364 * struct callback_head - callback structure for use with RCU and task_work
365 * @next: next update requests in a list
366 * @func: actual update function to call after the grace period.
368 struct callback_head {
369 struct callback_head *next;
370 void (*func)(struct callback_head *head);
372 #define rcu_head callback_head
373 enum writeback_sync_modes {
374 WB_SYNC_NONE, /* Don't wait on anything */
375 WB_SYNC_ALL, /* Wait on every mapping */
378 /* from include/linux/writeback.h */
380 * A control structure which tells the writeback code what to do. These are
381 * always on the stack, and hence need no locking. They are always initialised
382 * in a manner such that unspecified fields are set to zero.
384 struct writeback_control {
385 long nr_to_write; /* Write this many pages, and decrement
386 this for each page written */
387 long pages_skipped; /* Pages which were not written */
390 * For a_ops->writepages(): if start or end are non-zero then this is
391 * a hint that the filesystem need only write out the pages inside that
392 * byterange. The byte at `end' is included in the writeout request.
397 enum writeback_sync_modes sync_mode;
399 unsigned for_kupdate:1; /* A kupdate writeback */
400 unsigned for_background:1; /* A background writeback */
401 unsigned tagged_writepages:1; /* tag-and-write to avoid livelock */
402 unsigned for_reclaim:1; /* Invoked from the page allocator */
403 unsigned range_cyclic:1; /* range_start is cyclic */
404 unsigned for_sync:1; /* sync(2) WB_SYNC_ALL writeback */
407 void *kmemdup(const void *src, size_t len, gfp_t gfp);
409 typedef int irqreturn_t;
411 struct timer_list {};
412 struct notifier_block {};
414 typedef unsigned long dmaaddr_t;
416 #define pm_runtime_get_sync(dev) do {} while (0)
417 #define pm_runtime_put(dev) do {} while (0)
418 #define pm_runtime_put_sync(dev) do {} while (0)
419 #define pm_runtime_use_autosuspend(dev) do {} while (0)
420 #define pm_runtime_set_autosuspend_delay(dev, delay) do {} while (0)
421 #define pm_runtime_enable(dev) do {} while (0)
424 #define IRQ_HANDLED 1
425 #define IRQ_WAKE_THREAD 2
427 #define dev_set_drvdata(dev, data) do {} while (0)
429 #define enable_irq(...)
430 #define disable_irq(...)
431 #define disable_irq_wake(irq) do {} while (0)
432 #define enable_irq_wake(irq) -EINVAL
433 #define free_irq(irq, data) do {} while (0)
434 #define request_irq(nr, f, flags, nm, data) 0