projects / dragonfly.git / blame
| Commit | Line | Data |
|---|---|---|
| d7f50089 YY |
1 | /* |
| 2 | * Copyright (c) 2006 The DragonFly Project. All rights reserved. | |
| 3 | * | |
| 4 | * This code is derived from software contributed to The DragonFly Project | |
| 5 | * by Matthew Dillon <dillon@backplane.com> | |
| 6 | * | |
| 7 | * Redistribution and use in source and binary forms, with or without | |
| 8 | * modification, are permitted provided that the following conditions | |
| 9 | * are met: | |
| 10 | * | |
| 11 | * 1. Redistributions of source code must retain the above copyright | |
| 12 | * notice, this list of conditions and the following disclaimer. | |
| 13 | * 2. Redistributions in binary form must reproduce the above copyright | |
| 14 | * notice, this list of conditions and the following disclaimer in | |
| 15 | * the documentation and/or other materials provided with the | |
| 16 | * distribution. | |
| 17 | * 3. Neither the name of The DragonFly Project nor the names of its | |
| 18 | * contributors may be used to endorse or promote products derived | |
| 19 | * from this software without specific, prior written permission. | |
| 20 | * | |
| 21 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 22 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 23 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS | |
| 24 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE | |
| 25 | * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, | |
| 26 | * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, | |
| 27 | * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
| 28 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED | |
| 29 | * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | |
| 30 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT | |
| 31 | * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 32 | * SUCH DAMAGE. | |
| d7f50089 YY |
33 | */ |
| 34 | #include <sys/types.h> | |
| 35 | #include <sys/kernel.h> | |
| 8467576a | 36 | #include <sys/param.h> |
| d7f50089 YY |
37 | #include <sys/systm.h> |
| 38 | #include <sys/sysproto.h> | |
| 39 | #include <sys/memrange.h> | |
| 40 | #include <sys/errno.h> | |
| c33160e8 | 41 | #include <sys/proc.h> |
| d7f50089 | 42 | |
| 8467576a MD |
43 | #include <machine/cpu.h> |
| 44 | ||
| d7f50089 YY |
45 | int |
| 46 | sys_sysarch(struct sysarch_args *uap) | |
| 47 | { | |
| 48 | return (EOPNOTSUPP); | |
| 49 | } | |
| 50 | ||
| 51 | int | |
| 52 | cpu_set_iopl(void) | |
| 53 | { | |
| c33160e8 | 54 | curthread->td_lwp->lwp_md.md_regs->tf_rflags |= PSL_IOPL; |
| 8467576a | 55 | clear_quickret(); |
| c33160e8 | 56 | return(0); |
| d7f50089 YY |
57 | } |
| 58 | ||
| 59 | int | |
| 60 | cpu_clr_iopl(void) | |
| 61 | { | |
| c33160e8 | 62 | curthread->td_lwp->lwp_md.md_regs->tf_rflags &= ~PSL_IOPL; |
| 8467576a | 63 | clear_quickret(); |
| c33160e8 | 64 | return(0); |
| d7f50089 YY |
65 | } |
| 66 |