svn commit: r188653 - head/sys/mips/include

[Warner Losh]

Author: imp
Date: Sun Feb 15 20:05:13 2009
New Revision: 188653
URL: http://svn.freebsd.org/changeset/base/188653

Log:
  It appears that none of the contents of this file are necessary, so
  replace the amd64-ish version with a blank version.

Modified:
  head/sys/mips/include/fpu.h

Modified: head/sys/mips/include/fpu.h
==============================================================================
--- head/sys/mips/include/fpu.h	Sun Feb 15 18:30:44 2009	(r188652)
+++ head/sys/mips/include/fpu.h	Sun Feb 15 20:05:13 2009	(r188653)
@@ -1,109 +1,9 @@
 /*-
- * Copyright (c) 1990 The Regents of the University of California.
- * All rights reserved.
+ * This file is in the public domain.
  *
- * This code is derived from software contributed to Berkeley by
- * William Jolitz.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	from: @(#)npx.h	5.3 (Berkeley) 1/18/91
  * $FreeBSD$
  */
-
-/*
- * Floating Point Data Structures and Constants
- * W. Jolitz 1/90
- */
-
 #ifndef _MACHINE_FPU_H_
 #define	_MACHINE_FPU_H_
 
-/* Contents of each x87 floating point accumulator */
-struct fpacc87 {
-	u_char	fp_bytes[10];
-};
-
-/* Contents of each SSE extended accumulator */
-struct  xmmacc {
-	u_char	xmm_bytes[16];
-};
-
-struct  envxmm {
-	u_int16_t	en_cw;		/* control word (16bits) */
-	u_int16_t	en_sw;		/* status word (16bits) */
-	u_int8_t	en_tw;		/* tag word (8bits) */
-	u_int8_t	en_zero;
-	u_int16_t	en_opcode;	/* opcode last executed (11 bits ) */
-	u_int64_t	en_rip;		/* floating point instruction pointer */
-	u_int64_t	en_rdp;		/* floating operand pointer */
-	u_int32_t	en_mxcsr;	/* SSE sontorol/status register */
-	u_int32_t	en_mxcsr_mask;	/* valid bits in mxcsr */
-};
-
-struct  savefpu {
-	struct	envxmm	sv_env;
-	struct {
-		struct fpacc87	fp_acc;
-		u_char		fp_pad[6];      /* padding */
-	} sv_fp[8];
-	struct xmmacc	sv_xmm[16];
-	u_char sv_pad[96];
-} __aligned(16);
-
-/*
- * The hardware default control word for i387's and later coprocessors is
- * 0x37F, giving:
- *
- *	round to nearest
- *	64-bit precision
- *	all exceptions masked.
- *
- * FreeBSD/i386 uses 53 bit precision for things like fadd/fsub/fsqrt etc
- * because of the difference between memory and fpu register stack arguments.
- * If its using an intermediate fpu register, it has 80/64 bits to work
- * with.  If it uses memory, it has 64/53 bits to work with.  However,
- * gcc is aware of this and goes to a fair bit of trouble to make the
- * best use of it.
- *
- * This is mostly academic for AMD64, because the ABI prefers the use
- * SSE2 based math.  For FreeBSD/amd64, we go with the default settings.
- */
-#define	__INITIAL_FPUCW__	0x037F
-#define	__INITIAL_MXCSR__	0x1F80
-#define	__INITIAL_MXCSR_MASK__	0xFFBF
-
-#ifdef _KERNEL
-int	fpudna(void);
-void	fpudrop(void);
-void	fpuexit(struct thread *td);
-int	fpuformat(void);
-int	fpugetregs(struct thread *td, struct savefpu *addr);
-void	fpuinit(void);
-void	fpusetregs(struct thread *td, struct savefpu *addr);
-int	fputrap(void);
-#endif
-
 #endif /* !_MACHINE_FPU_H_ */