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19#include <linux/errno.h>
20#include <linux/sched.h>
21#include <linux/mm.h>
22#include <linux/smp.h>
23#include <linux/syscalls.h>
24#include <linux/mman.h>
25#include <linux/file.h>
26#include <linux/mempolicy.h>
27#include <linux/binfmts.h>
28#include <linux/fs.h>
29#include <linux/compat.h>
30#include <linux/uaccess.h>
31#include <linux/signal.h>
32#include <asm/syscalls.h>
33#include <asm/pgtable.h>
34#include <asm/homecache.h>
35#include <asm/cachectl.h>
36#include <arch/chip.h>
37
38SYSCALL_DEFINE3(cacheflush, unsigned long, addr, unsigned long, len,
39 unsigned long, flags)
40{
41 if (flags & DCACHE)
42 homecache_evict(cpumask_of(smp_processor_id()));
43 if (flags & ICACHE)
44 flush_remote(0, HV_FLUSH_EVICT_L1I, mm_cpumask(current->mm),
45 0, 0, 0, NULL, NULL, 0);
46 return 0;
47}
48
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56
57
58#if !defined(__tilegx__) || defined(CONFIG_COMPAT)
59
60ssize_t sys32_readahead(int fd, u32 offset_lo, u32 offset_hi, u32 count)
61{
62 return sys_readahead(fd, ((loff_t)offset_hi << 32) | offset_lo, count);
63}
64
65int sys32_fadvise64_64(int fd, u32 offset_lo, u32 offset_hi,
66 u32 len_lo, u32 len_hi, int advice)
67{
68 return sys_fadvise64_64(fd, ((loff_t)offset_hi << 32) | offset_lo,
69 ((loff_t)len_hi << 32) | len_lo, advice);
70}
71
72#endif
73
74
75SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,
76 unsigned long, prot, unsigned long, flags,
77 unsigned long, fd, unsigned long, off_4k)
78{
79#define PAGE_ADJUST (PAGE_SHIFT - 12)
80 if (off_4k & ((1 << PAGE_ADJUST) - 1))
81 return -EINVAL;
82 return sys_mmap_pgoff(addr, len, prot, flags, fd,
83 off_4k >> PAGE_ADJUST);
84}
85
86#ifdef __tilegx__
87SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
88 unsigned long, prot, unsigned long, flags,
89 unsigned long, fd, off_t, offset)
90{
91 if (offset & ((1 << PAGE_SHIFT) - 1))
92 return -EINVAL;
93 return sys_mmap_pgoff(addr, len, prot, flags, fd,
94 offset >> PAGE_SHIFT);
95}
96#endif
97
98
99
100#undef __SYSCALL
101#define __SYSCALL(nr, call) [nr] = (call),
102
103#ifndef __tilegx__
104
105#define sys_fadvise64_64 sys32_fadvise64_64
106#define sys_readahead sys32_readahead
107#endif
108
109
110#define sys_execve _sys_execve
111#define sys_sigaltstack _sys_sigaltstack
112#define sys_rt_sigreturn _sys_rt_sigreturn
113#define sys_clone _sys_clone
114#ifndef __tilegx__
115#define sys_cmpxchg_badaddr _sys_cmpxchg_badaddr
116#endif
117
118
119
120
121
122void *sys_call_table[__NR_syscalls] = {
123 [0 ... __NR_syscalls-1] = sys_ni_syscall,
124#include <asm/unistd.h>
125};
126