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Diffstat (limited to 'arch/m32r/kernel/sys_m32r.c')
-rw-r--r--arch/m32r/kernel/sys_m32r.c91
1 files changed, 0 insertions, 91 deletions
diff --git a/arch/m32r/kernel/sys_m32r.c b/arch/m32r/kernel/sys_m32r.c
deleted file mode 100644
index 22a50fc49ab7..000000000000
--- a/arch/m32r/kernel/sys_m32r.c
+++ /dev/null
@@ -1,91 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * linux/arch/m32r/kernel/sys_m32r.c
- *
- * This file contains various random system calls that
- * have a non-standard calling sequence on the Linux/M32R platform.
- *
- * Taken from i386 version.
- */
-
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/fs.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/ipc.h>
-
-#include <linux/uaccess.h>
-#include <asm/cachectl.h>
-#include <asm/cacheflush.h>
-#include <asm/syscall.h>
-#include <asm/unistd.h>
-
-/*
- * sys_tas() - test-and-set
- */
-asmlinkage int sys_tas(int __user *addr)
-{
- int oldval;
-
- if (!access_ok(VERIFY_WRITE, addr, sizeof (int)))
- return -EFAULT;
-
- /* atomic operation:
- * oldval = *addr; *addr = 1;
- */
- __asm__ __volatile__ (
- DCACHE_CLEAR("%0", "r4", "%1")
- " .fillinsn\n"
- "1:\n"
- " lock %0, @%1 -> unlock %2, @%1\n"
- "2:\n"
- /* NOTE:
- * The m32r processor can accept interrupts only
- * at the 32-bit instruction boundary.
- * So, in the above code, the "unlock" instruction
- * can be executed continuously after the "lock"
- * instruction execution without any interruptions.
- */
- ".section .fixup,\"ax\"\n"
- " .balign 4\n"
- "3: ldi %0, #%3\n"
- " seth r14, #high(2b)\n"
- " or3 r14, r14, #low(2b)\n"
- " jmp r14\n"
- ".previous\n"
- ".section __ex_table,\"a\"\n"
- " .balign 4\n"
- " .long 1b,3b\n"
- ".previous\n"
- : "=&r" (oldval)
- : "r" (addr), "r" (1), "i"(-EFAULT)
- : "r14", "memory"
-#ifdef CONFIG_CHIP_M32700_TS1
- , "r4"
-#endif /* CONFIG_CHIP_M32700_TS1 */
- );
-
- return oldval;
-}
-
-asmlinkage int sys_cacheflush(void *addr, int bytes, int cache)
-{
- /* This should flush more selectively ... */
- _flush_cache_all();
- return 0;
-}
-
-asmlinkage int sys_cachectl(char *addr, int nbytes, int op)
-{
- /* Not implemented yet. */
- return -ENOSYS;
-}