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Diffstat (limited to 'arch/m68knommu/kernel/sys_m68k.c')
-rw-r--r--arch/m68knommu/kernel/sys_m68k.c94
1 files changed, 0 insertions, 94 deletions
diff --git a/arch/m68knommu/kernel/sys_m68k.c b/arch/m68knommu/kernel/sys_m68k.c
deleted file mode 100644
index 68488ae47f0a..000000000000
--- a/arch/m68knommu/kernel/sys_m68k.c
+++ /dev/null
@@ -1,94 +0,0 @@
1/*
2 * linux/arch/m68knommu/kernel/sys_m68k.c
3 *
4 * This file contains various random system calls that
5 * have a non-standard calling sequence on the Linux/m68k
6 * platform.
7 */
8
9#include <linux/errno.h>
10#include <linux/sched.h>
11#include <linux/mm.h>
12#include <linux/smp.h>
13#include <linux/sem.h>
14#include <linux/msg.h>
15#include <linux/shm.h>
16#include <linux/stat.h>
17#include <linux/syscalls.h>
18#include <linux/mman.h>
19#include <linux/file.h>
20#include <linux/ipc.h>
21#include <linux/fs.h>
22
23#include <asm/setup.h>
24#include <asm/uaccess.h>
25#include <asm/cachectl.h>
26#include <asm/traps.h>
27#include <asm/cacheflush.h>
28#include <asm/unistd.h>
29
30/* sys_cacheflush -- flush (part of) the processor cache. */
31asmlinkage int
32sys_cacheflush (unsigned long addr, int scope, int cache, unsigned long len)
33{
34 flush_cache_all();
35 return(0);
36}
37
38asmlinkage int sys_getpagesize(void)
39{
40 return PAGE_SIZE;
41}
42
43/*
44 * Do a system call from kernel instead of calling sys_execve so we
45 * end up with proper pt_regs.
46 */
47int kernel_execve(const char *filename,
48 const char *const argv[],
49 const char *const envp[])
50{
51 register long __res asm ("%d0") = __NR_execve;
52 register long __a asm ("%d1") = (long)(filename);
53 register long __b asm ("%d2") = (long)(argv);
54 register long __c asm ("%d3") = (long)(envp);
55 asm volatile ("trap #0" : "+d" (__res)
56 : "d" (__a), "d" (__b), "d" (__c));
57 return __res;
58}
59
60asmlinkage unsigned long sys_get_thread_area(void)
61{
62 return current_thread_info()->tp_value;
63}
64
65asmlinkage int sys_set_thread_area(unsigned long tp)
66{
67 current_thread_info()->tp_value = tp;
68 return 0;
69}
70
71/* This syscall gets its arguments in A0 (mem), D2 (oldval) and
72 D1 (newval). */
73asmlinkage int
74sys_atomic_cmpxchg_32(unsigned long newval, int oldval, int d3, int d4, int d5,
75 unsigned long __user * mem)
76{
77 struct mm_struct *mm = current->mm;
78 unsigned long mem_value;
79
80 down_read(&mm->mmap_sem);
81
82 mem_value = *mem;
83 if (mem_value == oldval)
84 *mem = newval;
85
86 up_read(&mm->mmap_sem);
87 return mem_value;
88}
89
90asmlinkage int sys_atomic_barrier(void)
91{
92 /* no code needed for uniprocs */
93 return 0;
94}