Blame view

kernel/linux-imx6_3.14.28/tools/virtio/linux/kernel.h 2.48 KB
6b13f685e   김민수   BSP 최초 추가
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
  #ifndef KERNEL_H
  #define KERNEL_H
  #include <stdbool.h>
  #include <stdlib.h>
  #include <stddef.h>
  #include <stdio.h>
  #include <string.h>
  #include <assert.h>
  #include <stdarg.h>
  
  #include <linux/types.h>
  #include <linux/printk.h>
  #include <linux/bug.h>
  #include <errno.h>
  #include <unistd.h>
  #include <asm/barrier.h>
  
  #define CONFIG_SMP
  
  #define PAGE_SIZE getpagesize()
  #define PAGE_MASK (~(PAGE_SIZE-1))
  
  typedef unsigned long long dma_addr_t;
  typedef size_t __kernel_size_t;
  
  struct page {
  	unsigned long long dummy;
  };
  
  /* Physical == Virtual */
  #define virt_to_phys(p) ((unsigned long)p)
  #define phys_to_virt(a) ((void *)(unsigned long)(a))
  /* Page address: Virtual / 4K */
  #define page_to_phys(p) ((dma_addr_t)(unsigned long)(p))
  #define virt_to_page(p) ((struct page *)((unsigned long)p & PAGE_MASK))
  
  #define offset_in_page(p) (((unsigned long)p) % PAGE_SIZE)
  
  #define __printf(a,b) __attribute__((format(printf,a,b)))
  
  typedef enum {
  	GFP_KERNEL,
  	GFP_ATOMIC,
  	__GFP_HIGHMEM,
  	__GFP_HIGH
  } gfp_t;
  
  #define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
  
  extern void *__kmalloc_fake, *__kfree_ignore_start, *__kfree_ignore_end;
  static inline void *kmalloc(size_t s, gfp_t gfp)
  {
  	if (__kmalloc_fake)
  		return __kmalloc_fake;
  	return malloc(s);
  }
  
  static inline void kfree(void *p)
  {
  	if (p >= __kfree_ignore_start && p < __kfree_ignore_end)
  		return;
  	free(p);
  }
  
  static inline void *krealloc(void *p, size_t s, gfp_t gfp)
  {
  	return realloc(p, s);
  }
  
  
  static inline unsigned long __get_free_page(gfp_t gfp)
  {
  	void *p;
  
  	posix_memalign(&p, PAGE_SIZE, PAGE_SIZE);
  	return (unsigned long)p;
  }
  
  static inline void free_page(unsigned long addr)
  {
  	free((void *)addr);
  }
  
  #define container_of(ptr, type, member) ({			\
  	const typeof( ((type *)0)->member ) *__mptr = (ptr);	\
  	(type *)( (char *)__mptr - offsetof(type,member) );})
  
  #define uninitialized_var(x) x = x
  
  # ifndef likely
  #  define likely(x)	(__builtin_expect(!!(x), 1))
  # endif
  # ifndef unlikely
  #  define unlikely(x)	(__builtin_expect(!!(x), 0))
  # endif
  
  #define pr_err(format, ...) fprintf (stderr, format, ## __VA_ARGS__)
  #ifdef DEBUG
  #define pr_debug(format, ...) fprintf (stderr, format, ## __VA_ARGS__)
  #else
  #define pr_debug(format, ...) do {} while (0)
  #endif
  #define dev_err(dev, format, ...) fprintf (stderr, format, ## __VA_ARGS__)
  #define dev_warn(dev, format, ...) fprintf (stderr, format, ## __VA_ARGS__)
  
  #define min(x, y) ({				\
  	typeof(x) _min1 = (x);			\
  	typeof(y) _min2 = (y);			\
  	(void) (&_min1 == &_min2);		\
  	_min1 < _min2 ? _min1 : _min2; })
  
  #endif /* KERNEL_H */