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-rw-r--r--arch/mips/lib/delay.c14
1 files changed, 10 insertions, 4 deletions
diff --git a/arch/mips/lib/delay.c b/arch/mips/lib/delay.c
index 44713af15a62..705cfb7c1a74 100644
--- a/arch/mips/lib/delay.c
+++ b/arch/mips/lib/delay.c
@@ -6,7 +6,7 @@
6 * Copyright (C) 1994 by Waldorf Electronics 6 * Copyright (C) 1994 by Waldorf Electronics
7 * Copyright (C) 1995 - 2000, 01, 03 by Ralf Baechle 7 * Copyright (C) 1995 - 2000, 01, 03 by Ralf Baechle
8 * Copyright (C) 1999, 2000 Silicon Graphics, Inc. 8 * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
9 * Copyright (C) 2007 Maciej W. Rozycki 9 * Copyright (C) 2007, 2014 Maciej W. Rozycki
10 */ 10 */
11#include <linux/module.h> 11#include <linux/module.h>
12#include <linux/param.h> 12#include <linux/param.h>
@@ -15,6 +15,12 @@
15#include <asm/compiler.h> 15#include <asm/compiler.h>
16#include <asm/war.h> 16#include <asm/war.h>
17 17
18#ifndef CONFIG_CPU_DADDI_WORKAROUNDS
19#define GCC_DADDI_IMM_ASM() "I"
20#else
21#define GCC_DADDI_IMM_ASM() "r"
22#endif
23
18void __delay(unsigned long loops) 24void __delay(unsigned long loops)
19{ 25{
20 __asm__ __volatile__ ( 26 __asm__ __volatile__ (
@@ -22,13 +28,13 @@ void __delay(unsigned long loops)
22 " .align 3 \n" 28 " .align 3 \n"
23 "1: bnez %0, 1b \n" 29 "1: bnez %0, 1b \n"
24#if BITS_PER_LONG == 32 30#if BITS_PER_LONG == 32
25 " subu %0, 1 \n" 31 " subu %0, %1 \n"
26#else 32#else
27 " dsubu %0, 1 \n" 33 " dsubu %0, %1 \n"
28#endif 34#endif
29 " .set reorder \n" 35 " .set reorder \n"
30 : "=r" (loops) 36 : "=r" (loops)
31 : "0" (loops)); 37 : GCC_DADDI_IMM_ASM() (1), "0" (loops));
32} 38}
33EXPORT_SYMBOL(__delay); 39EXPORT_SYMBOL(__delay);
34 40