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