summaryrefslogtreecommitdiffstats
path: root/arch/nds32/kernel/sys_nds32.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/nds32/kernel/sys_nds32.c')
-rw-r--r--arch/nds32/kernel/sys_nds32.c84
1 files changed, 0 insertions, 84 deletions
diff --git a/arch/nds32/kernel/sys_nds32.c b/arch/nds32/kernel/sys_nds32.c
deleted file mode 100644
index cb2d1e219bb3..000000000000
--- a/arch/nds32/kernel/sys_nds32.c
+++ /dev/null
@@ -1,84 +0,0 @@
-// 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>
-#include <asm/fpu.h>
-#include <asm/fp_udfiex_crtl.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;
-}
-
-SYSCALL_DEFINE2(fp_udfiex_crtl, unsigned int, cmd, unsigned int, act)
-{
-#if IS_ENABLED(CONFIG_SUPPORT_DENORMAL_ARITHMETIC)
- int old_udf_iex;
-
- if (!used_math()) {
- load_fpu(&init_fpuregs);
- current->thread.fpu.UDF_IEX_trap = init_fpuregs.UDF_IEX_trap;
- set_used_math();
- }
-
- old_udf_iex = current->thread.fpu.UDF_IEX_trap;
- act &= (FPCSR_mskUDFE | FPCSR_mskIEXE);
-
- switch (cmd) {
- case DISABLE_UDF_IEX_TRAP:
- current->thread.fpu.UDF_IEX_trap &= ~act;
- break;
- case ENABLE_UDF_IEX_TRAP:
- current->thread.fpu.UDF_IEX_trap |= act;
- break;
- case GET_UDF_IEX_TRAP:
- break;
- default:
- return -EINVAL;
- }
- return old_udf_iex;
-#else
- return -ENOTSUPP;
-#endif
-}