| /* |
| * Kevin D. Kissell, kevink@mips and Carsten Langgaard, carstenl@mips.com |
| * Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved. |
| * |
| * This program is free software; you can distribute it and/or modify it |
| * under the terms of the GNU General Public License (Version 2) as |
| * published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * for more details. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program; if not, write to the Free Software Foundation, Inc., |
| * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. |
| * |
| * Routines corresponding to Linux kernel FP context |
| * manipulation primitives for the Algorithmics MIPS |
| * FPU Emulator |
| */ |
| #include <linux/sched.h> |
| #include <asm/processor.h> |
| #include <asm/signal.h> |
| #include <asm/uaccess.h> |
| |
| #include <asm/fpu.h> |
| #include <asm/fpu_emulator.h> |
| |
| #define SIGNALLING_NAN 0x7ff800007ff80000LL |
| |
| void fpu_emulator_init_fpu(void) |
| { |
| static int first = 1; |
| int i; |
| |
| if (first) { |
| first = 0; |
| printk("Algorithmics/MIPS FPU Emulator v1.5\n"); |
| } |
| |
| current->thread.fpu.fcr31 = 0; |
| for (i = 0; i < 32; i++) |
| set_fpr64(¤t->thread.fpu.fpr[i], 0, SIGNALLING_NAN); |
| } |
