intr.h revision 1.1.2.2
1 1.1.2.2 bouyer /* $NetBSD: intr.h,v 1.1.2.2 2008/01/02 21:50:53 bouyer Exp $ */ 2 1.1.2.2 bouyer 3 1.1.2.2 bouyer /*- 4 1.1.2.2 bouyer * Copyright (c) 2007 Jared D. McNeill <jmcneill (at) invisible.ca> 5 1.1.2.2 bouyer * All rights reserved. 6 1.1.2.2 bouyer * 7 1.1.2.2 bouyer * Redistribution and use in source and binary forms, with or without 8 1.1.2.2 bouyer * modification, are permitted provided that the following conditions 9 1.1.2.2 bouyer * are met: 10 1.1.2.2 bouyer * 1. Redistributions of source code must retain the above copyright 11 1.1.2.2 bouyer * notice, this list of conditions and the following disclaimer. 12 1.1.2.2 bouyer * 2. Redistributions in binary form must reproduce the above copyright 13 1.1.2.2 bouyer * notice, this list of conditions and the following disclaimer in the 14 1.1.2.2 bouyer * documentation and/or other materials provided with the distribution. 15 1.1.2.2 bouyer * 3. All advertising materials mentioning features or use of this software 16 1.1.2.2 bouyer * must display the following acknowledgement: 17 1.1.2.2 bouyer * This product includes software developed by Jared D. McNeill. 18 1.1.2.2 bouyer * 4. Neither the name of The NetBSD Foundation nor the names of its 19 1.1.2.2 bouyer * contributors may be used to endorse or promote products derived 20 1.1.2.2 bouyer * from this software without specific prior written permission. 21 1.1.2.2 bouyer * 22 1.1.2.2 bouyer * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 23 1.1.2.2 bouyer * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 24 1.1.2.2 bouyer * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 25 1.1.2.2 bouyer * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 26 1.1.2.2 bouyer * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 27 1.1.2.2 bouyer * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 28 1.1.2.2 bouyer * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 29 1.1.2.2 bouyer * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 30 1.1.2.2 bouyer * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 31 1.1.2.2 bouyer * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32 1.1.2.2 bouyer * POSSIBILITY OF SUCH DAMAGE. 33 1.1.2.2 bouyer */ 34 1.1.2.2 bouyer 35 1.1.2.2 bouyer #ifndef _ARCH_USERMODE_INCLUDE_INTR_H 36 1.1.2.2 bouyer #define _ARCH_USERMODE_INCLUDE_INTR_H 37 1.1.2.2 bouyer 38 1.1.2.2 bouyer #include <machine/intrdefs.h> 39 1.1.2.2 bouyer 40 1.1.2.2 bouyer __inline static int 41 1.1.2.2 bouyer splraise(int x) 42 1.1.2.2 bouyer { 43 1.1.2.2 bouyer extern int usermode_x; 44 1.1.2.2 bouyer int oldx = usermode_x; 45 1.1.2.2 bouyer 46 1.1.2.2 bouyer usermode_x = x; 47 1.1.2.2 bouyer 48 1.1.2.2 bouyer return oldx; 49 1.1.2.2 bouyer } 50 1.1.2.2 bouyer 51 1.1.2.2 bouyer __inline static void 52 1.1.2.2 bouyer spllower(int x) 53 1.1.2.2 bouyer { 54 1.1.2.2 bouyer extern int usermode_x; 55 1.1.2.2 bouyer 56 1.1.2.2 bouyer usermode_x = x; 57 1.1.2.2 bouyer } 58 1.1.2.2 bouyer 59 1.1.2.2 bouyer #define spl0() spllower(IPL_NONE) 60 1.1.2.2 bouyer #define splx(x) spllower(x) 61 1.1.2.2 bouyer 62 1.1.2.2 bouyer typedef uint8_t ipl_t; 63 1.1.2.2 bouyer typedef struct { 64 1.1.2.2 bouyer ipl_t _ipl; 65 1.1.2.2 bouyer } ipl_cookie_t; 66 1.1.2.2 bouyer 67 1.1.2.2 bouyer static inline ipl_cookie_t 68 1.1.2.2 bouyer makeiplcookie(ipl_t ipl) 69 1.1.2.2 bouyer { 70 1.1.2.2 bouyer return (ipl_cookie_t){._ipl = ipl}; 71 1.1.2.2 bouyer } 72 1.1.2.2 bouyer 73 1.1.2.2 bouyer static inline int 74 1.1.2.2 bouyer splraiseipl(ipl_cookie_t icookie) 75 1.1.2.2 bouyer { 76 1.1.2.2 bouyer return splraise(icookie._ipl); 77 1.1.2.2 bouyer } 78 1.1.2.2 bouyer 79 1.1.2.2 bouyer #include <sys/spl.h> 80 1.1.2.2 bouyer 81 1.1.2.2 bouyer #endif /* !_ARCH_USERMODE_INCLUDE_INTR_H */ 82
Indexes created Thu Oct 23 22:10:10 GMT 2025