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"Das U-Boot" Source Tree
1#ifndef _LINUX_COMPAT_H_
2#define _LINUX_COMPAT_H_
3
4#include <console.h>
5#include <cyclic.h>
6#include <log.h>
7#include <malloc.h>
8#include <time.h>
9
10#include <asm/processor.h>
11
12#include <linux/types.h>
13#include <linux/err.h>
14#include <linux/kernel.h>
15
16#ifdef CONFIG_XEN
17#include <xen/events.h>
18#endif
19
20struct unused {};
21typedef struct unused unused_t;
22
23struct p_current{
24 int pid;
25};
26
27extern struct p_current *current;
28
29#define GFP_ATOMIC ((gfp_t) 0)
30#define GFP_KERNEL ((gfp_t) 0)
31#define GFP_NOFS ((gfp_t) 0)
32#define GFP_USER ((gfp_t) 0)
33#define __GFP_NOWARN ((gfp_t) 0)
34#define __GFP_ZERO ((__force gfp_t)0x8000u) /* Return zeroed page on success */
35
36void *kmalloc(size_t size, int flags);
37
38static inline void *kzalloc(size_t size, gfp_t flags)
39{
40 return kmalloc(size, flags | __GFP_ZERO);
41}
42
43static inline void *kmalloc_array(size_t n, size_t size, gfp_t flags)
44{
45 if (size != 0 && n > SIZE_MAX / size)
46 return NULL;
47 return kmalloc(n * size, flags | __GFP_ZERO);
48}
49
50static inline void *kcalloc(size_t n, size_t size, gfp_t flags)
51{
52 return kmalloc_array(n, size, flags | __GFP_ZERO);
53}
54
55#define vmalloc(size) kmalloc(size, 0)
56#define __vmalloc(size, flags, pgsz) kmalloc(size, flags)
57static inline void *vzalloc(unsigned long size)
58{
59 return kzalloc(size, 0);
60}
61static inline void kfree(const void *block)
62{
63 free((void *)block);
64}
65static inline void vfree(const void *addr)
66{
67 free((void *)addr);
68}
69
70struct kmem_cache { int sz; };
71
72struct kmem_cache *get_mem(int element_sz);
73#define kmem_cache_create(a, sz, c, d, e) get_mem(sz)
74void *kmem_cache_alloc(struct kmem_cache *obj, int flag);
75static inline void kmem_cache_free(struct kmem_cache *cachep, void *obj)
76{
77 free(obj);
78}
79static inline void kmem_cache_destroy(struct kmem_cache *cachep)
80{
81 free(cachep);
82}
83
84#define DECLARE_WAITQUEUE(...) do { } while (0)
85#define add_wait_queue(...) do { } while (0)
86#define remove_wait_queue(...) do { } while (0)
87
88#ifndef CONFIG_XEN
89#define eventchn_poll()
90#endif
91
92#define __wait_event_timeout(condition, timeout, ret) \
93({ \
94 ulong __ret = ret; /* explicit shadow */ \
95 ulong start = get_timer(0); \
96 for (;;) { \
97 eventchn_poll(); \
98 if (condition) { \
99 __ret = 1; \
100 break; \
101 } \
102 if ((get_timer(start) > timeout) || ctrlc()) { \
103 __ret = 0; \
104 break; \
105 } \
106 cpu_relax(); \
107 } \
108 __ret; \
109})
110
111/**
112 * wait_event_timeout() - Wait until the event occurs before the timeout.
113 * @wr_head: The wait queue to wait on.
114 * @condition: Expression for the event to wait for.
115 * @timeout: Maximum waiting time.
116 *
117 * We wait until the @condition evaluates to %true (succeed) or
118 * %false (@timeout elapsed).
119 *
120 * Return:
121 * 0 - if the @condition evaluated to %false after the @timeout elapsed
122 * 1 - if the @condition evaluated to %true
123 */
124#define wait_event_timeout(wq_head, condition, timeout) \
125({ \
126 ulong __ret; \
127 if (condition) \
128 __ret = 1; \
129 else \
130 __ret = __wait_event_timeout(condition, timeout, __ret);\
131 __ret; \
132})
133
134#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
135
136/* This is also defined in ARMv8's mmu.h */
137#ifndef PAGE_SIZE
138#define PAGE_SIZE 4096
139#endif
140
141/* drivers/char/random.c */
142#define get_random_bytes(...)
143
144/* include/linux/leds.h */
145struct led_trigger {};
146
147#define DEFINE_LED_TRIGGER(x) static struct led_trigger *x;
148enum led_brightness {
149 LED_OFF = 0,
150 LED_HALF = 127,
151 LED_FULL = 255,
152};
153
154static inline void led_trigger_register_simple(const char *name,
155 struct led_trigger **trigger) {}
156static inline void led_trigger_unregister_simple(struct led_trigger *trigger) {}
157static inline void led_trigger_event(struct led_trigger *trigger,
158 enum led_brightness event) {}
159
160/* uapi/linux/limits.h */
161#define XATTR_LIST_MAX 65536 /* size of extended attribute namelist (64k) */
162
163/**
164 * The type used for indexing onto a disc or disc partition.
165 *
166 * Linux always considers sectors to be 512 bytes long independently
167 * of the devices real block size.
168 *
169 * blkcnt_t is the type of the inode's block count.
170 */
171#ifdef CONFIG_LBDAF
172typedef u64 sector_t;
173typedef u64 blkcnt_t;
174#else
175typedef unsigned long sector_t;
176typedef unsigned long blkcnt_t;
177#endif
178
179/* module */
180#define THIS_MODULE 0
181#define try_module_get(...) 1
182#define module_put(...) do { } while (0)
183#define module_init(...)
184#define module_exit(...)
185#define EXPORT_SYMBOL(...)
186#define EXPORT_SYMBOL_GPL(...)
187#define module_param(...)
188#define module_param_call(...)
189#define MODULE_PARM_DESC(...)
190#define MODULE_VERSION(...)
191#define MODULE_DESCRIPTION(...)
192#define MODULE_AUTHOR(...)
193#define MODULE_LICENSE(...)
194#define MODULE_ALIAS(...)
195#define __module_get(...)
196
197/* character device */
198#define MKDEV(...) 0
199#define MAJOR(dev) 0
200#define MINOR(dev) 0
201
202#define alloc_chrdev_region(...) 0
203#define unregister_chrdev_region(...)
204
205#define class_create(...) __builtin_return_address(0)
206#define class_create_file(...) 0
207#define class_register(...) 0
208#define class_unregister(...)
209#define class_remove_file(...)
210#define class_destroy(...)
211#define misc_register(...) 0
212#define misc_deregister(...)
213
214#define blocking_notifier_call_chain(...) 0
215
216#define __initdata
217#define late_initcall(...)
218
219#define dev_set_name(...) do { } while (0)
220#define device_register(...) 0
221#define device_unregister(...)
222#define volume_sysfs_init(...) 0
223#define volume_sysfs_close(...) do { } while (0)
224
225#define init_waitqueue_head(...) do { } while (0)
226#define wait_event_interruptible(...) 0
227#define wake_up_interruptible(...) do { } while (0)
228#define dump_stack(...) do { } while (0)
229
230#define task_pid_nr(x) 0
231#define set_freezable(...) do { } while (0)
232#define try_to_freeze(...) 0
233#define set_current_state(...) do { } while (0)
234#define kthread_should_stop(...) 0
235
236#define setup_timer(timer, func, data) do {} while (0)
237#define del_timer_sync(timer) do {} while (0)
238#define schedule_work(work) do {} while (0)
239#define INIT_WORK(work, fun) do {} while (0)
240
241struct work_struct {};
242
243unsigned long copy_from_user(void *dest, const void *src,
244 unsigned long count);
245
246typedef unused_t spinlock_t;
247typedef int wait_queue_head_t;
248
249#define spin_lock_init(lock) do {} while (0)
250#define spin_lock(lock) do {} while (0)
251#define spin_unlock(lock) do {} while (0)
252#define spin_lock_irqsave(lock, flags) do {} while (0)
253#define spin_unlock_irqrestore(lock, flags) do { flags = 0; } while (0)
254
255#define DEFINE_MUTEX(...)
256#define mutex_init(...)
257#define mutex_lock(...)
258#define mutex_unlock(...)
259
260#define init_rwsem(...) do { } while (0)
261#define down_read(...) do { } while (0)
262#define down_write(...) do { } while (0)
263#define down_write_trylock(...) 1
264#define up_read(...) do { } while (0)
265#define up_write(...) do { } while (0)
266
267#define cond_resched() do { } while (0)
268#define yield() do { } while (0)
269
270#define __init
271#define __exit
272#define __devinit
273#define __devinitdata
274#define __devinitconst
275#define __initconst
276#define __initdata
277
278#define kthread_create(...) __builtin_return_address(0)
279#define kthread_stop(...) do { } while (0)
280#define wake_up_process(...) do { } while (0)
281
282struct rw_semaphore { int i; };
283#define down_write(...) do { } while (0)
284#define up_write(...) do { } while (0)
285#define down_read(...) do { } while (0)
286#define up_read(...) do { } while (0)
287struct device {
288 struct device *parent;
289 struct class *class;
290 dev_t devt; /* dev_t, creates the sysfs "dev" */
291 void (*release)(struct device *dev);
292 /* This is used from drivers/usb/musb-new subsystem only */
293 void *driver_data; /* data private to the driver */
294 void *device_data; /* data private to the device */
295};
296struct mutex { int i; };
297struct kernel_param { int i; };
298
299struct cdev {
300 int owner;
301 dev_t dev;
302};
303#define cdev_init(...) do { } while (0)
304#define cdev_add(...) 0
305#define cdev_del(...) do { } while (0)
306
307#define prandom_u32(...) 0
308
309typedef struct {
310 uid_t val;
311} kuid_t;
312
313typedef struct {
314 gid_t val;
315} kgid_t;
316
317/* from include/linux/types.h */
318
319/**
320 * struct callback_head - callback structure for use with RCU and task_work
321 * @next: next update requests in a list
322 * @func: actual update function to call after the grace period.
323 */
324struct callback_head {
325 struct callback_head *next;
326 void (*func)(struct callback_head *head);
327};
328#define rcu_head callback_head
329enum writeback_sync_modes {
330 WB_SYNC_NONE, /* Don't wait on anything */
331 WB_SYNC_ALL, /* Wait on every mapping */
332};
333
334/* from include/linux/writeback.h */
335/*
336 * A control structure which tells the writeback code what to do. These are
337 * always on the stack, and hence need no locking. They are always initialised
338 * in a manner such that unspecified fields are set to zero.
339 */
340struct writeback_control {
341 long nr_to_write; /* Write this many pages, and decrement
342 this for each page written */
343 long pages_skipped; /* Pages which were not written */
344
345 /*
346 * For a_ops->writepages(): if start or end are non-zero then this is
347 * a hint that the filesystem need only write out the pages inside that
348 * byterange. The byte at `end' is included in the writeout request.
349 */
350 loff_t range_start;
351 loff_t range_end;
352
353 enum writeback_sync_modes sync_mode;
354
355 unsigned for_kupdate:1; /* A kupdate writeback */
356 unsigned for_background:1; /* A background writeback */
357 unsigned tagged_writepages:1; /* tag-and-write to avoid livelock */
358 unsigned for_reclaim:1; /* Invoked from the page allocator */
359 unsigned range_cyclic:1; /* range_start is cyclic */
360 unsigned for_sync:1; /* sync(2) WB_SYNC_ALL writeback */
361};
362
363void *kmemdup(const void *src, size_t len, gfp_t gfp);
364
365typedef int irqreturn_t;
366
367struct timer_list {};
368struct notifier_block {};
369
370typedef unsigned long dmaaddr_t;
371
372#define pm_runtime_get_sync(dev) do {} while (0)
373#define pm_runtime_put(dev) do {} while (0)
374#define pm_runtime_put_sync(dev) do {} while (0)
375#define pm_runtime_use_autosuspend(dev) do {} while (0)
376#define pm_runtime_set_autosuspend_delay(dev, delay) do {} while (0)
377#define pm_runtime_enable(dev) do {} while (0)
378
379#define IRQ_NONE 0
380#define IRQ_HANDLED 1
381#define IRQ_WAKE_THREAD 2
382
383#define dev_set_drvdata(dev, data) do {} while (0)
384
385#define enable_irq(...)
386#define disable_irq(...)
387#define disable_irq_wake(irq) do {} while (0)
388#define enable_irq_wake(irq) -EINVAL
389#define free_irq(irq, data) do {} while (0)
390#define request_irq(nr, f, flags, nm, data) 0
391
392#endif