patch-2.4.20 linux-2.4.20/arch/mips64/math-emu/kernel_linkage.c

• Lines: 96
• Date: Wed Dec 31 16:00:00 1969
• Orig file: linux-2.4.19/arch/mips64/math-emu/kernel_linkage.c
• Orig date: Mon Jul 2 13:56:41 2001

diff -urN linux-2.4.19/arch/mips64/math-emu/kernel_linkage.c linux-2.4.20/arch/mips64/math-emu/kernel_linkage.c
@@ -1,95 +0,0 @@
-/**************************************************************************
- *
- *  arch/mips/math_emu/kernel_linkage.c
- *
- *  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_emulator.h>
-
-extern struct mips_fpu_emulator_private fpuemuprivate;
-
-#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 v1.4\n");
-	}
-
-	current->thread.fpu.soft.sr = 0;
-	for (i = 0; i < 32; i++) {
-		current->thread.fpu.soft.regs[i] = SIGNALLING_NAN;
-	}
-}
-
-
-/*
- * Emulator context save/restore to/from a signal context
- * presumed to be on the user stack, and therefore accessed
- * with appropriate macros from uaccess.h
- */
-
-int fpu_emulator_save_context(struct sigcontext *sc)
-{
-	int i;
-	int err = 0;
-
-	for (i = 0; i < 32; i++) {
-		err |=
-		    __put_user(current->thread.fpu.soft.regs[i],
-			       &sc->sc_fpregs[i]);
-	}
-	err |= __put_user(current->thread.fpu.soft.sr, &sc->sc_fpc_csr);
-	err |= __put_user(fpuemuprivate.eir, &sc->sc_fpc_eir);
-
-	return err;
-}
-
-int fpu_emulator_restore_context(struct sigcontext *sc)
-{
-	int i;
-	int err = 0;
-
-	for (i = 0; i < 32; i++) {
-		err |=
-		    __get_user(current->thread.fpu.soft.regs[i],
-			       &sc->sc_fpregs[i]);
-	}
-	err |= __get_user(current->thread.fpu.soft.sr, &sc->sc_fpc_csr);
-	err |= __get_user(fpuemuprivate.eir, &sc->sc_fpc_eir);
-
-	return err;
-}
-