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10#include <linux/spinlock.h>
11#include <linux/sem.h>
12#include <linux/msg.h>
13#include <linux/shm.h>
14#include <linux/syscalls.h>
15#include <linux/mman.h>
16#include <linux/file.h>
17#include <linux/fs.h>
18#include <linux/uaccess.h>
19#include <linux/ipc.h>
20#include <linux/unistd.h>
21
22#include <asm/cacheflush.h>
23#include <asm/dma.h>
24#include <asm/cachectl.h>
25#include <asm/ptrace.h>
26
27asmlinkage void *sys_sram_alloc(size_t size, unsigned long flags)
28{
29 return sram_alloc_with_lsl(size, flags);
30}
31
32asmlinkage int sys_sram_free(const void *addr)
33{
34 return sram_free_with_lsl(addr);
35}
36
37asmlinkage void *sys_dma_memcpy(void *dest, const void *src, size_t len)
38{
39 return safe_dma_memcpy(dest, src, len);
40}
41
42#if defined(CONFIG_FB) || defined(CONFIG_FB_MODULE)
43#include <linux/fb.h>
44unsigned long get_fb_unmapped_area(struct file *filp, unsigned long orig_addr,
45 unsigned long len, unsigned long pgoff, unsigned long flags)
46{
47 struct fb_info *info = filp->private_data;
48 return (unsigned long)info->screen_base;
49}
50EXPORT_SYMBOL(get_fb_unmapped_area);
51#endif
52
53
54static DEFINE_SPINLOCK(bfin_spinlock_lock);
55
56#ifdef CONFIG_SYS_BFIN_SPINLOCK_L1
57__attribute__((l1_text))
58#endif
59asmlinkage int sys_bfin_spinlock(int *p)
60{
61 int ret, tmp = 0;
62
63 spin_lock(&bfin_spinlock_lock);
64 ret = get_user(tmp, p);
65 if (likely(ret == 0)) {
66 if (unlikely(tmp))
67 ret = 1;
68 else
69 put_user(1, p);
70 }
71 spin_unlock(&bfin_spinlock_lock);
72
73 return ret;
74}
75
76SYSCALL_DEFINE3(cacheflush, unsigned long, addr, unsigned long, len, int, op)
77{
78 if (is_user_addr_valid(current, addr, len) != 0)
79 return -EINVAL;
80
81 if (op & DCACHE)
82 blackfin_dcache_flush_range(addr, addr + len);
83 if (op & ICACHE)
84 blackfin_icache_flush_range(addr, addr + len);
85
86 return 0;
87}
88