diff options
Diffstat (limited to 'arch/sparc/kernel/entry.S')
| -rw-r--r-- | arch/sparc/kernel/entry.S | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/arch/sparc/kernel/entry.S b/arch/sparc/kernel/entry.S index 831f540251f..88d2cefd01b 100644 --- a/arch/sparc/kernel/entry.S +++ b/arch/sparc/kernel/entry.S @@ -1,7 +1,6 @@ -/* $Id: entry.S,v 1.170 2001/11/13 00:57:05 davem Exp $ - * arch/sparc/kernel/entry.S: Sparc trap low-level entry points. +/* arch/sparc/kernel/entry.S: Sparc trap low-level entry points. * - * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) + * Copyright (C) 1995, 2007 David S. Miller (davem@davemloft.net) * Copyright (C) 1996 Eddie C. Dost (ecd@skynet.be) * Copyright (C) 1996 Miguel de Icaza (miguel@nuclecu.unam.mx) * Copyright (C) 1996-1999 Jakub Jelinek (jj@sunsite.mff.cuni.cz) @@ -129,7 +128,7 @@ trap_low: RESTORE_ALL #endif -#ifdef CONFIG_BLK_DEV_FD +#if defined(CONFIG_BLK_DEV_FD) || defined(CONFIG_BLK_DEV_FD_MODULE) .text .align 4 .globl floppy_hardint @@ -1749,8 +1748,8 @@ fpload: __ndelay: save %sp, -STACKFRAME_SZ, %sp mov %i0, %o0 - call .umul - mov 0x1ad, %o1 ! 2**32 / (1 000 000 000 / HZ) + call .umul ! round multiplier up so large ns ok + mov 0x1ae, %o1 ! 2**32 / (1 000 000 000 / HZ) call .umul mov %i1, %o1 ! udelay_val ba delay_continue @@ -1760,11 +1759,17 @@ __ndelay: __udelay: save %sp, -STACKFRAME_SZ, %sp mov %i0, %o0 - sethi %hi(0x10c6), %o1 + sethi %hi(0x10c7), %o1 ! round multiplier up so large us ok call .umul - or %o1, %lo(0x10c6), %o1 ! 2**32 / 1 000 000 + or %o1, %lo(0x10c7), %o1 ! 2**32 / 1 000 000 call .umul mov %i1, %o1 ! udelay_val + sethi %hi(0x028f4b62), %l0 ! Add in rounding constant * 2**32, + or %g0, %lo(0x028f4b62), %l0 + addcc %o0, %l0, %o0 ! 2**32 * 0.009 999 + bcs,a 3f + add %o1, 0x01, %o1 +3: call .umul mov HZ, %o0 ! >>32 earlier for wider range |