145 lines
3.3 KiB
C
145 lines
3.3 KiB
C
/* 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/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))
|
|
#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) );})
|
|
|
|
#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 WARN_ON_ONCE(cond) ((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; })
|
|
|
|
/* TODO: empty stubs for now. Broken but enough for virtio_ring.c */
|
|
#define list_add_tail(a, b) do {} while (0)
|
|
#define list_del(a) do {} while (0)
|
|
#define list_for_each_entry(a, b, c) while (0)
|
|
/* end of stubs */
|
|
|
|
#endif /* KERNEL_H */
|