Contributors: 11
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Stuart Menefy |
193 |
49.36% |
1 |
5.88% |
| Linus Torvalds (pre-git) |
138 |
35.29% |
3 |
17.65% |
| Toshinobu Sugioka |
29 |
7.42% |
1 |
5.88% |
| Paul Mundt |
11 |
2.81% |
4 |
23.53% |
| Giuseppe Cavallaro |
9 |
2.30% |
2 |
11.76% |
| Andrew Morton |
3 |
0.77% |
1 |
5.88% |
| Arnd Bergmann |
3 |
0.77% |
1 |
5.88% |
| Dominik Brodowski |
2 |
0.51% |
1 |
5.88% |
| Adrian Bunk |
1 |
0.26% |
1 |
5.88% |
| Linus Torvalds |
1 |
0.26% |
1 |
5.88% |
| Greg Kroah-Hartman |
1 |
0.26% |
1 |
5.88% |
| Total |
391 |
|
17 |
|
// SPDX-License-Identifier: GPL-2.0
/*
* linux/arch/sh/kernel/sys_sh.c
*
* This file contains various random system calls that
* have a non-standard calling sequence on the Linux/SuperH
* platform.
*
* Taken from i386 version.
*/
#include <linux/errno.h>
#include <linux/sched.h>
#include <linux/mm.h>
#include <linux/smp.h>
#include <linux/sem.h>
#include <linux/msg.h>
#include <linux/shm.h>
#include <linux/stat.h>
#include <linux/syscalls.h>
#include <linux/mman.h>
#include <linux/file.h>
#include <linux/utsname.h>
#include <linux/module.h>
#include <linux/fs.h>
#include <linux/ipc.h>
#include <asm/syscalls.h>
#include <linux/uaccess.h>
#include <asm/unistd.h>
#include <asm/cacheflush.h>
#include <asm/cachectl.h>
asmlinkage int old_mmap(unsigned long addr, unsigned long len,
unsigned long prot, unsigned long flags,
int fd, unsigned long off)
{
if (off & ~PAGE_MASK)
return -EINVAL;
return ksys_mmap_pgoff(addr, len, prot, flags, fd, off>>PAGE_SHIFT);
}
asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
unsigned long prot, unsigned long flags,
unsigned long fd, unsigned long pgoff)
{
/*
* The shift for mmap2 is constant, regardless of PAGE_SIZE
* setting.
*/
if (pgoff & ((1 << (PAGE_SHIFT - 12)) - 1))
return -EINVAL;
pgoff >>= PAGE_SHIFT - 12;
return ksys_mmap_pgoff(addr, len, prot, flags, fd, pgoff);
}
/* sys_cacheflush -- flush (part of) the processor cache. */
asmlinkage int sys_cacheflush(unsigned long addr, unsigned long len, int op)
{
struct vm_area_struct *vma;
if ((op <= 0) || (op > (CACHEFLUSH_D_PURGE|CACHEFLUSH_I)))
return -EINVAL;
/*
* Verify that the specified address region actually belongs
* to this process.
*/
if (addr + len < addr)
return -EFAULT;
down_read(¤t->mm->mmap_sem);
vma = find_vma (current->mm, addr);
if (vma == NULL || addr < vma->vm_start || addr + len > vma->vm_end) {
up_read(¤t->mm->mmap_sem);
return -EFAULT;
}
switch (op & CACHEFLUSH_D_PURGE) {
case CACHEFLUSH_D_INVAL:
__flush_invalidate_region((void *)addr, len);
break;
case CACHEFLUSH_D_WB:
__flush_wback_region((void *)addr, len);
break;
case CACHEFLUSH_D_PURGE:
__flush_purge_region((void *)addr, len);
break;
}
if (op & CACHEFLUSH_I)
flush_icache_range(addr, addr+len);
up_read(¤t->mm->mmap_sem);
return 0;
}