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 | ||
