1 files changed, 0 insertions, 100 deletions
diff --git a/arch/nds32/kernel/ex-scall.S b/arch/nds32/kernel/ex-scall.S
deleted file mode 100644
index 270050f1b7b1..000000000000
--- a/arch/nds32/kernel/ex-scall.S
+++ /dev/null
@@ -1,100 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <linux/linkage.h>
-#include <asm/unistd.h>
-#include <asm/assembler.h>
-#include <asm/nds32.h>
-#include <asm/asm-offsets.h>
-#include <asm/thread_info.h>
-#include <asm/current.h>
-
-/*
- * $r0 = previous task_struct,
- * $r1 = next task_struct,
- * previous and next are guaranteed not to be the same.
- */
-
-ENTRY(__switch_to)
-
-	la	$p0, __entry_task
-	sw	$r1, [$p0]
-	addi	$p1, $r0, #THREAD_CPU_CONTEXT
-	smw.bi 	$r6, [$p1], $r14, #0xb		! push r6~r14, fp, lp, sp
-	move	$r25, $r1
-#if defined(CONFIG_FPU)
-	call	_switch_fpu
-#endif
-	addi	$r1, $r25, #THREAD_CPU_CONTEXT
-	lmw.bi 	$r6, [$r1], $r14, #0xb		! pop r6~r14, fp, lp, sp
-	ret
-
-
-#define tbl $r8
-
-/*
- * $r7 will be writen as syscall nr
- */
-	.macro	get_scno
-	lwi	$r7, [$sp + R15_OFFSET]
-	swi	$r7, [$sp + SYSCALLNO_OFFSET]
-	.endm
-
-	.macro	updateipc
-	addi	$r17, $r13, #4				! $r13 is $IPC
-	swi	$r17, [$sp + IPC_OFFSET]
-	.endm
-
-ENTRY(eh_syscall)
-	updateipc
-
-	get_scno
-	gie_enable
-
-	lwi	$p0, [tsk+#TSK_TI_FLAGS]		! check for syscall tracing
-
-	andi	$p1, $p0, #_TIF_WORK_SYSCALL_ENTRY	! are we tracing syscalls?
-	bnez	$p1, __sys_trace
-
-	la	$lp, ret_fast_syscall		! return address
-jmp_systbl:
-	addi	$p1, $r7, #-__NR_syscalls	! syscall number of syscall instruction is guarded by addembler
-	bgez	$p1, _SCNO_EXCEED		! call sys_* routine
-	la	tbl, sys_call_table		! load syscall table pointer
-	slli	$p1, $r7, #2
-	add	$p1, tbl, $p1
-	lwi	$p1, [$p1]
-	jr	$p1				! no return
-
-_SCNO_EXCEED:
-	ori	$r0, $r7, #0
-        ori	$r1, $sp, #0
-	b	bad_syscall
-
-/*
- * This is the really slow path.  We're going to be doing
- * context switches, and waiting for our parent to respond.
- */
-__sys_trace:
-	move	$r0, $sp
-	bal	syscall_trace_enter
-	move	$r7, $r0
-	la	$lp, __sys_trace_return		! return address
-
-	addi    $p1, $r7, #1
-	beqz    $p1, ret_slow_syscall		! fatal signal is pending
-
-	addi	$p1, $sp, #R0_OFFSET		! pointer to regs
-	lmw.bi	$r0, [$p1], $r5			! have to reload $r0 - $r5
-	b	jmp_systbl
-
-__sys_trace_return:
-	swi	$r0, [$sp+#R0_OFFSET]		! T: save returned $r0
-	move	$r0, $sp			! set pt_regs for syscall_trace_leave
-	bal	syscall_trace_leave
-	b	ret_slow_syscall
-
-ENTRY(sys_rt_sigreturn_wrapper)
-	addi	$r0, $sp, #0
-	b	sys_rt_sigreturn
-ENDPROC(sys_rt_sigreturn_wrapper)