| npx.h (189418) | npx.h (208833) |
|---|---|
| 1/*- 2 * Copyright (c) 1990 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * William Jolitz. 7 * 8 * Redistribution and use in source and binary forms, with or without --- 16 unchanged lines hidden (view full) --- 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * from: @(#)npx.h 5.3 (Berkeley) 1/18/91 | 1/*- 2 * Copyright (c) 1990 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * William Jolitz. 7 * 8 * Redistribution and use in source and binary forms, with or without --- 16 unchanged lines hidden (view full) --- 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * from: @(#)npx.h 5.3 (Berkeley) 1/18/91 |
| 33 * $FreeBSD: head/sys/i386/include/npx.h 189418 2009-03-05 18:32:43Z jhb $ | 33 * $FreeBSD: head/sys/i386/include/npx.h 208833 2010-06-05 15:59:59Z kib $ |
| 34 */ 35 36/* 37 * 287/387 NPX Coprocessor Data Structures and Constants 38 * W. Jolitz 1/90 39 */ 40 41#ifndef _MACHINE_NPX_H_ --- 96 unchanged lines hidden (view full) --- 138 139#ifdef _KERNEL 140 141#define IO_NPX 0x0F0 /* Numeric Coprocessor */ 142#define IO_NPXSIZE 16 /* 80387/80487 NPX registers */ 143 144#define IRQ_NPX 13 145 | 34 */ 35 36/* 37 * 287/387 NPX Coprocessor Data Structures and Constants 38 * W. Jolitz 1/90 39 */ 40 41#ifndef _MACHINE_NPX_H_ --- 96 unchanged lines hidden (view full) --- 138 139#ifdef _KERNEL 140 141#define IO_NPX 0x0F0 /* Numeric Coprocessor */ 142#define IO_NPXSIZE 16 /* 80387/80487 NPX registers */ 143 144#define IRQ_NPX 13 145 |
| 146struct fpu_kern_ctx { 147 union savefpu hwstate; 148 union savefpu *prev; 149 uint32_t flags; 150}; 151#define FPU_KERN_CTX_NPXINITDONE 0x01 152 153#define PCB_USER_FPU(pcb) (((pcb)->pcb_flags & PCB_KERNNPX) == 0) 154 |
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| 146/* full reset on some systems, NOP on others */ 147#define npx_full_reset() outb(IO_NPX + 1, 0) 148 149int npxdna(void); 150void npxdrop(void); 151void npxexit(struct thread *td); 152int npxformat(void); 153int npxgetregs(struct thread *td, union savefpu *addr); | 155/* full reset on some systems, NOP on others */ 156#define npx_full_reset() outb(IO_NPX + 1, 0) 157 158int npxdna(void); 159void npxdrop(void); 160void npxexit(struct thread *td); 161int npxformat(void); 162int npxgetregs(struct thread *td, union savefpu *addr); |
| 163int npxgetuserregs(struct thread *td, union savefpu *addr); |
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| 154void npxinit(void); 155void npxsave(union savefpu *addr); 156void npxsetregs(struct thread *td, union savefpu *addr); | 164void npxinit(void); 165void npxsave(union savefpu *addr); 166void npxsetregs(struct thread *td, union savefpu *addr); |
| 167void npxsetuserregs(struct thread *td, union savefpu *addr); |
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| 157int npxtrap(void); | 168int npxtrap(void); |
| 169int fpu_kern_enter(struct thread *td, struct fpu_kern_ctx *ctx, 170 u_int flags); 171int fpu_kern_leave(struct thread *td, struct fpu_kern_ctx *ctx); 172int fpu_kern_thread(u_int flags); 173int is_fpu_kern_thread(u_int flags); |
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| 158 | 174 |
| 175/* 176 * Flags for fpu_kern_enter() and fpu_kern_thread(). 177 */ 178#define FPU_KERN_NORMAL 0x0000 179 |
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| 159#endif 160 161#endif /* !_MACHINE_NPX_H_ */ | 180#endif 181 182#endif /* !_MACHINE_NPX_H_ */ |