1*4882a593Smuzhiyun
2*4882a593Smuzhiyun #include <common.h>
3*4882a593Smuzhiyun #include <linux/compat.h>
4*4882a593Smuzhiyun
5*4882a593Smuzhiyun struct p_current cur = {
6*4882a593Smuzhiyun .pid = 1,
7*4882a593Smuzhiyun };
8*4882a593Smuzhiyun __maybe_unused struct p_current *current = &cur;
9*4882a593Smuzhiyun
copy_from_user(void * dest,const void * src,unsigned long count)10*4882a593Smuzhiyun unsigned long copy_from_user(void *dest, const void *src,
11*4882a593Smuzhiyun unsigned long count)
12*4882a593Smuzhiyun {
13*4882a593Smuzhiyun memcpy((void *)dest, (void *)src, count);
14*4882a593Smuzhiyun return 0;
15*4882a593Smuzhiyun }
16*4882a593Smuzhiyun
kmalloc(size_t size,int flags)17*4882a593Smuzhiyun void *kmalloc(size_t size, int flags)
18*4882a593Smuzhiyun {
19*4882a593Smuzhiyun void *p;
20*4882a593Smuzhiyun
21*4882a593Smuzhiyun p = memalign(ARCH_DMA_MINALIGN, size);
22*4882a593Smuzhiyun if (flags & __GFP_ZERO)
23*4882a593Smuzhiyun memset(p, 0, size);
24*4882a593Smuzhiyun
25*4882a593Smuzhiyun return p;
26*4882a593Smuzhiyun }
27*4882a593Smuzhiyun
get_mem(int element_sz)28*4882a593Smuzhiyun struct kmem_cache *get_mem(int element_sz)
29*4882a593Smuzhiyun {
30*4882a593Smuzhiyun struct kmem_cache *ret;
31*4882a593Smuzhiyun
32*4882a593Smuzhiyun ret = memalign(ARCH_DMA_MINALIGN, sizeof(struct kmem_cache));
33*4882a593Smuzhiyun ret->sz = element_sz;
34*4882a593Smuzhiyun
35*4882a593Smuzhiyun return ret;
36*4882a593Smuzhiyun }
37*4882a593Smuzhiyun
kmem_cache_alloc(struct kmem_cache * obj,int flag)38*4882a593Smuzhiyun void *kmem_cache_alloc(struct kmem_cache *obj, int flag)
39*4882a593Smuzhiyun {
40*4882a593Smuzhiyun return memalign(ARCH_DMA_MINALIGN, obj->sz);
41*4882a593Smuzhiyun }
42