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| // SPDX-License-Identifier: GPL-2.0
| // Copyright (C) 2005-2017 Andes Technology Corporation
|
| #include <linux/syscalls.h>
| #include <linux/uaccess.h>
|
| #include <asm/cachectl.h>
| #include <asm/proc-fns.h>
|
| SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,
| unsigned long, prot, unsigned long, flags,
| unsigned long, fd, unsigned long, pgoff)
| {
| if (pgoff & (~PAGE_MASK >> 12))
| return -EINVAL;
|
| return sys_mmap_pgoff(addr, len, prot, flags, fd,
| pgoff >> (PAGE_SHIFT - 12));
| }
|
| SYSCALL_DEFINE4(fadvise64_64_wrapper,int, fd, int, advice, loff_t, offset,
| loff_t, len)
| {
| return sys_fadvise64_64(fd, offset, len, advice);
| }
|
| SYSCALL_DEFINE3(cacheflush, unsigned int, start, unsigned int, end, int, cache)
| {
| struct vm_area_struct *vma;
| bool flushi = true, wbd = true;
|
| vma = find_vma(current->mm, start);
| if (!vma)
| return -EFAULT;
| switch (cache) {
| case ICACHE:
| wbd = false;
| break;
| case DCACHE:
| flushi = false;
| break;
| case BCACHE:
| break;
| default:
| return -EINVAL;
| }
| cpu_cache_wbinval_range_check(vma, start, end, flushi, wbd);
|
| return 0;
| }
|
|
