85d13cee2c
Provide siginfo.si_code for floating point errors when error occurs using the SSE math processor. MFC after: 3 weeks
78 lines
2.7 KiB
C
78 lines
2.7 KiB
C
/*-
|
|
* Copyright (c) 1990 The Regents of the University of California.
|
|
* All rights reserved.
|
|
*
|
|
* 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
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
/*
|
|
* 287/387 NPX Coprocessor Data Structures and Constants
|
|
* W. Jolitz 1/90
|
|
*/
|
|
|
|
#ifndef _MACHINE_NPX_H_
|
|
#define _MACHINE_NPX_H_
|
|
|
|
#include <x86/fpu.h>
|
|
|
|
#ifdef _KERNEL
|
|
|
|
#define PCB_USER_FPU(pcb) (((pcb)->pcb_flags & PCB_KERNNPX) == 0)
|
|
|
|
int npxdna(void);
|
|
void npxdrop(void);
|
|
void npxexit(struct thread *td);
|
|
int npxformat(void);
|
|
int npxgetregs(struct thread *td);
|
|
void npxinit(void);
|
|
void npxsave(union savefpu *addr);
|
|
void npxsetregs(struct thread *td, union savefpu *addr);
|
|
int npxtrap_x87(void);
|
|
int npxtrap_sse(void);
|
|
void npxuserinited(struct thread *);
|
|
struct fpu_kern_ctx *fpu_kern_alloc_ctx(u_int flags);
|
|
void fpu_kern_free_ctx(struct fpu_kern_ctx *ctx);
|
|
int fpu_kern_enter(struct thread *td, struct fpu_kern_ctx *ctx,
|
|
u_int flags);
|
|
int fpu_kern_leave(struct thread *td, struct fpu_kern_ctx *ctx);
|
|
int fpu_kern_thread(u_int flags);
|
|
int is_fpu_kern_thread(u_int flags);
|
|
|
|
/*
|
|
* Flags for fpu_kern_enter() and fpu_kern_thread().
|
|
*/
|
|
#define FPU_KERN_NORMAL 0x0000
|
|
#define FPU_KERN_NOWAIT 0x0001
|
|
|
|
#endif
|
|
|
|
#endif /* !_MACHINE_NPX_H_ */
|