diff options
Diffstat (limited to 'arch/mips/lib/delay.c')
-rw-r--r-- | arch/mips/lib/delay.c | 14 |
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 | |||
18 | void __delay(unsigned long loops) | 24 | void __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 | } |
33 | EXPORT_SYMBOL(__delay); | 39 | EXPORT_SYMBOL(__delay); |
34 | 40 | ||