| /* MN10300 Low level FPU management operations |
| * |
| * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. |
| * Written by David Howells (dhowells@redhat.com) |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public Licence |
| * as published by the Free Software Foundation; either version |
| * 2 of the Licence, or (at your option) any later version. |
| */ |
| #include <linux/linkage.h> |
| #include <asm/cpu-regs.h> |
| #include <asm/smp.h> |
| #include <asm/thread_info.h> |
| #include <asm/asm-offsets.h> |
| #include <asm/frame.inc> |
| |
| ############################################################################### |
| # |
| # void fpu_disabled(void) |
| # - handle an exception due to the FPU being disabled |
| # when CONFIG_FPU is disabled |
| # |
| ############################################################################### |
| .type fpu_disabled,@function |
| .globl fpu_disabled |
| fpu_disabled: |
| add -4,sp |
| SAVE_ALL |
| mov -1,d0 |
| mov d0,(REG_ORIG_D0,fp) |
| |
| and ~EPSW_NMID,epsw |
| |
| mov fp,d0 |
| call unexpected_fpu_exception[],0 |
| jmp ret_from_exception |
| |
| .size fpu_disabled,.-fpu_disabled |
