icu: Split out icu/icu.c
[dragonfly.git] / sys / platform / pc32 / i386 / ipl_funcs.c
1 /*-
2  * Copyright (c) 1997 Bruce Evans.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  *
26  * $FreeBSD: src/sys/i386/isa/ipl_funcs.c,v 1.32.2.5 2002/12/17 18:04:02 sam Exp $
27  * $DragonFly: src/sys/platform/pc32/isa/ipl_funcs.c,v 1.15 2007/01/11 23:23:55 dillon Exp $
28  */
29
30 #include <sys/param.h>
31 #include <sys/systm.h>
32 #include <sys/kernel.h>
33 #include <sys/sysctl.h>
34 #include <sys/interrupt.h>
35 #include <sys/proc.h>
36 #include <machine/ipl.h>
37 #include <machine/globaldata.h>
38 #include <machine/pcb.h>
39
40 /*
41  * Bits in the spending bitmap variable must be set atomically because
42  * spending may be manipulated by interrupts or other cpu's without holding 
43  * any locks.
44  *
45  * Note: setbits uses a locked or, making simple cases MP safe.
46  */
47 #define DO_SETBITS(name, var, bits)                                     \
48 void                                                                    \
49 name(void)                                                              \
50 {                                                                       \
51         struct mdglobaldata *gd = mdcpu;                                \
52         atomic_set_int_nonlocked(var, bits);                            \
53         atomic_set_int(&gd->mi.gd_reqflags, RQF_INTPEND);       \
54 }                                                                       \
55
56 DO_SETBITS(setdelayed,   &gd->gd_spending, loadandclear(&gd->gd_sdelayed))
57
58 DO_SETBITS(setsoftcamnet,&gd->gd_spending, SWI_CAMNET_PENDING)
59 DO_SETBITS(setsoftcambio,&gd->gd_spending, SWI_CAMBIO_PENDING)
60 /*DO_SETBITS(setsoftunused02, &gd->gd_spending, SWI_UNUSED02_PENDING)*/
61 /*DO_SETBITS(setsoftunused01, &gd->gd_spending, SWI_UNUSED01_PENDING)*/
62 DO_SETBITS(setsofttty,   &gd->gd_spending, SWI_TTY_PENDING)
63 DO_SETBITS(setsoftvm,    &gd->gd_spending, SWI_VM_PENDING)
64 DO_SETBITS(setsofttq,    &gd->gd_spending, SWI_TQ_PENDING)
65 DO_SETBITS(setsoftcrypto,&gd->gd_spending, SWI_CRYPTO_PENDING)
66
67 /*DO_SETBITS(schedsoftcamnet, &gd->gd_sdelayed, SWI_CAMNET_PENDING)*/
68 /*DO_SETBITS(schedsoftcambio, &gd->gd_sdelayed, SWI_CAMBIO_PENDING)*/
69 /*DO_SETBITS(schedsoftunused01, &gd->gd_sdelayed, SWI_UNUSED01_PENDING)*/
70 DO_SETBITS(schedsofttty, &gd->gd_sdelayed, SWI_TTY_PENDING)
71 /*DO_SETBITS(schedsoftvm,        &gd->gd_sdelayed, SWI_VM_PENDING)*/
72 /*DO_SETBITS(schedsofttq,        &gd->gd_sdelayed, SWI_TQ_PENDING)*/
73