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Diffstat (limited to '')
-rw-r--r-- | tools/virtio/linux/kernel.h | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/tools/virtio/linux/kernel.h b/tools/virtio/linux/kernel.h new file mode 100644 index 000000000..063ccc897 --- /dev/null +++ b/tools/virtio/linux/kernel.h @@ -0,0 +1,138 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#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/compiler.h> +#include <linux/log2.h> +#include <linux/types.h> +#include <linux/list.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)) +#define PAGE_ALIGN(x) ((x + PAGE_SIZE - 1) & PAGE_MASK) + +/* generic data direction definitions */ +#define READ 0 +#define WRITE 1 + +typedef unsigned long long phys_addr_t; +typedef unsigned long long dma_addr_t; +typedef size_t __kernel_size_t; +typedef unsigned int __wsum; + +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))) + +#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 *kmalloc_array(unsigned n, size_t s, gfp_t gfp) +{ + return kmalloc(n * s, gfp); +} + +static inline void *kzalloc(size_t s, gfp_t gfp) +{ + void *p = kmalloc(s, gfp); + + memset(p, 0, s); + return p; +} + +static inline void *alloc_pages_exact(size_t s, gfp_t gfp) +{ + return kmalloc(s, gfp); +} + +static inline void kfree(void *p) +{ + if (p >= __kfree_ignore_start && p < __kfree_ignore_end) + return; + free(p); +} + +static inline void free_pages_exact(void *p, size_t s) +{ + kfree(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) );}) + +# 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 WARN_ON_ONCE(cond) (unlikely(cond) ? fprintf (stderr, "WARNING\n") : 0) + +#define min(x, y) ({ \ + typeof(x) _min1 = (x); \ + typeof(y) _min2 = (y); \ + (void) (&_min1 == &_min2); \ + _min1 < _min2 ? _min1 : _min2; }) + +#endif /* KERNEL_H */ |