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61d0b5a4 RR |
1 | #ifndef KERNEL_H |
2 | #define KERNEL_H | |
3 | #include <stdbool.h> | |
4 | #include <stdlib.h> | |
5 | #include <stddef.h> | |
6 | #include <stdio.h> | |
7 | #include <string.h> | |
8 | #include <assert.h> | |
9 | #include <stdarg.h> | |
10 | ||
a7c49033 | 11 | #include <linux/compiler.h> |
61d0b5a4 RR |
12 | #include <linux/types.h> |
13 | #include <linux/printk.h> | |
14 | #include <linux/bug.h> | |
15 | #include <errno.h> | |
16 | #include <unistd.h> | |
17 | #include <asm/barrier.h> | |
18 | ||
19 | #define CONFIG_SMP | |
20 | ||
21 | #define PAGE_SIZE getpagesize() | |
22 | #define PAGE_MASK (~(PAGE_SIZE-1)) | |
23 | ||
24 | typedef unsigned long long dma_addr_t; | |
25 | typedef size_t __kernel_size_t; | |
ddab2c0e | 26 | typedef unsigned int __wsum; |
61d0b5a4 RR |
27 | |
28 | struct page { | |
29 | unsigned long long dummy; | |
30 | }; | |
31 | ||
32 | /* Physical == Virtual */ | |
33 | #define virt_to_phys(p) ((unsigned long)p) | |
34 | #define phys_to_virt(a) ((void *)(unsigned long)(a)) | |
35 | /* Page address: Virtual / 4K */ | |
36 | #define page_to_phys(p) ((dma_addr_t)(unsigned long)(p)) | |
37 | #define virt_to_page(p) ((struct page *)((unsigned long)p & PAGE_MASK)) | |
38 | ||
39 | #define offset_in_page(p) (((unsigned long)p) % PAGE_SIZE) | |
40 | ||
41 | #define __printf(a,b) __attribute__((format(printf,a,b))) | |
42 | ||
61d0b5a4 RR |
43 | #define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0])) |
44 | ||
45 | extern void *__kmalloc_fake, *__kfree_ignore_start, *__kfree_ignore_end; | |
46 | static inline void *kmalloc(size_t s, gfp_t gfp) | |
47 | { | |
48 | if (__kmalloc_fake) | |
49 | return __kmalloc_fake; | |
50 | return malloc(s); | |
51 | } | |
ddab2c0e MT |
52 | static inline void *kzalloc(size_t s, gfp_t gfp) |
53 | { | |
54 | void *p = kmalloc(s, gfp); | |
55 | ||
56 | memset(p, 0, s); | |
57 | return p; | |
58 | } | |
61d0b5a4 RR |
59 | |
60 | static inline void kfree(void *p) | |
61 | { | |
62 | if (p >= __kfree_ignore_start && p < __kfree_ignore_end) | |
63 | return; | |
64 | free(p); | |
65 | } | |
66 | ||
67 | static inline void *krealloc(void *p, size_t s, gfp_t gfp) | |
68 | { | |
69 | return realloc(p, s); | |
70 | } | |
71 | ||
72 | ||
73 | static inline unsigned long __get_free_page(gfp_t gfp) | |
74 | { | |
75 | void *p; | |
76 | ||
77 | posix_memalign(&p, PAGE_SIZE, PAGE_SIZE); | |
78 | return (unsigned long)p; | |
79 | } | |
80 | ||
81 | static inline void free_page(unsigned long addr) | |
82 | { | |
83 | free((void *)addr); | |
84 | } | |
85 | ||
86 | #define container_of(ptr, type, member) ({ \ | |
87 | const typeof( ((type *)0)->member ) *__mptr = (ptr); \ | |
88 | (type *)( (char *)__mptr - offsetof(type,member) );}) | |
89 | ||
90 | #define uninitialized_var(x) x = x | |
91 | ||
92 | # ifndef likely | |
93 | # define likely(x) (__builtin_expect(!!(x), 1)) | |
94 | # endif | |
95 | # ifndef unlikely | |
96 | # define unlikely(x) (__builtin_expect(!!(x), 0)) | |
97 | # endif | |
98 | ||
99 | #define pr_err(format, ...) fprintf (stderr, format, ## __VA_ARGS__) | |
100 | #ifdef DEBUG | |
101 | #define pr_debug(format, ...) fprintf (stderr, format, ## __VA_ARGS__) | |
102 | #else | |
103 | #define pr_debug(format, ...) do {} while (0) | |
104 | #endif | |
105 | #define dev_err(dev, format, ...) fprintf (stderr, format, ## __VA_ARGS__) | |
106 | #define dev_warn(dev, format, ...) fprintf (stderr, format, ## __VA_ARGS__) | |
107 | ||
108 | #define min(x, y) ({ \ | |
109 | typeof(x) _min1 = (x); \ | |
110 | typeof(y) _min2 = (y); \ | |
111 | (void) (&_min1 == &_min2); \ | |
112 | _min1 < _min2 ? _min1 : _min2; }) | |
113 | ||
40c172e5 MT |
114 | /* TODO: empty stubs for now. Broken but enough for virtio_ring.c */ |
115 | #define list_add_tail(a, b) do {} while (0) | |
116 | #define list_del(a) do {} while (0) | |
117 | #define list_for_each_entry(a, b, c) while (0) | |
118 | /* end of stubs */ | |
119 | ||
61d0b5a4 | 120 | #endif /* KERNEL_H */ |