diff options
Diffstat (limited to 'include/asm-mips/stackframe.h')
| -rw-r--r-- | include/asm-mips/stackframe.h | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/include/asm-mips/stackframe.h b/include/asm-mips/stackframe.h index e925dcd50..726e82f23 100644 --- a/include/asm-mips/stackframe.h +++ b/include/asm-mips/stackframe.h @@ -3,7 +3,7 @@ * * Copyright (C) 1994, 1995, 1996 by Ralf Baechle and Paul M. Antoine. * - * $Id: stackframe.h,v 1.6 1998/03/26 07:39:21 ralf Exp $ + * $Id: stackframe.h,v 1.7 1998/04/28 19:39:15 ralf Exp $ */ #ifndef __ASM_MIPS_STACKFRAME_H #define __ASM_MIPS_STACKFRAME_H @@ -174,10 +174,6 @@ /* * Move to kernel mode and enable interrupts. * Set cp0 enable bit as sign that we're running on the kernel stack - * - * Note that the mtc0 will be effective on R4000 pipeline stage 7. This - * means that another three instructions will be executed with interrupts - * disabled. Arch/mips/mips3/r4xx0.S makes use of this fact. */ #define STI \ mfc0 t0,CP0_STATUS; \ @@ -186,4 +182,15 @@ xori t0,0x1e; \ mtc0 t0,CP0_STATUS +/* + * Just move to kernel mode and leave interrupts as they are. + * Set cp0 enable bit as sign that we're running on the kernel stack + */ +#define KMODE \ + mfc0 t0,CP0_STATUS; \ + li t1,ST0_CU0|0x1e; \ + or t0,t1; \ + xori t0,0x1e; \ + mtc0 t0,CP0_STATUS + #endif /* __ASM_MIPS_STACKFRAME_H */ |