projects / dragonfly.git / blame
| Commit | Line | Data |
|---|---|---|
| d7f50089 YY |
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 $ | |
| d7f50089 YY |
27 | */ |
| 28 | ||
| 29 | #include <sys/param.h> | |
| 30 | #include <sys/systm.h> | |
| 31 | #include <sys/kernel.h> | |
| 32 | #include <sys/sysctl.h> | |
| 33 | #include <sys/proc.h> | |
| 34 | #include <sys/interrupt.h> | |
| 35 | #include <machine/globaldata.h> | |
| 36 | ||
| 37 | /* | |
| 729e15a8 SZ |
38 | * Bits in the spending bitmap variable must be set atomically because |
| 39 | * spending may be manipulated by interrupts or other cpu's without holding | |
| d7f50089 YY |
40 | * any locks. |
| 41 | * | |
| 42 | * Note: setbits uses a locked or, making simple cases MP safe. | |
| 43 | */ | |
| 44 | #define DO_SETBITS(name, var, bits) \ | |
| 45 | void \ | |
| 46 | name(void) \ | |
| 47 | { \ | |
| 48 | struct mdglobaldata *gd = mdcpu; \ | |
| 49 | atomic_set_int_nonlocked(var, bits); \ | |
| 50 | atomic_set_int_nonlocked(&gd->mi.gd_reqflags, RQF_INTPEND); \ | |
| 51 | } \ | |
| 52 | ||
| 53 | DO_SETBITS(setdelayed, &gd->gd_spending, loadandclear(&gd->gd_sdelayed)) | |
| 54 | ||
| 55 | DO_SETBITS(setsoftcamnet,&gd->gd_spending, SWI_CAMNET_PENDING) | |
| 56 | DO_SETBITS(setsoftcambio,&gd->gd_spending, SWI_CAMBIO_PENDING) | |
| 57 | /*DO_SETBITS(setsoftunused02, &gd->gd_spending, SWI_UNUSED02_PENDING)*/ | |
| 58 | /*DO_SETBITS(setsoftunused01, &gd->gd_spending, SWI_UNUSED01_PENDING)*/ | |
| 59 | DO_SETBITS(setsofttty, &gd->gd_spending, SWI_TTY_PENDING) | |
| 60 | DO_SETBITS(setsoftvm, &gd->gd_spending, SWI_VM_PENDING) | |
| 61 | DO_SETBITS(setsofttq, &gd->gd_spending, SWI_TQ_PENDING) | |
| 62 | DO_SETBITS(setsoftcrypto,&gd->gd_spending, SWI_CRYPTO_PENDING) | |
| 63 | ||
| 64 | /*DO_SETBITS(schedsoftcamnet, &gd->gd_sdelayed, SWI_CAMNET_PENDING)*/ | |
| 65 | /*DO_SETBITS(schedsoftcambio, &gd->gd_sdelayed, SWI_CAMBIO_PENDING)*/ | |
| 66 | /*DO_SETBITS(schedsoftunused01, &gd->gd_sdelayed, SWI_UNUSED01_PENDING)*/ | |
| 67 | DO_SETBITS(schedsofttty, &gd->gd_sdelayed, SWI_TTY_PENDING) | |
| 68 | /*DO_SETBITS(schedsoftvm, &gd->gd_sdelayed, SWI_VM_PENDING)*/ | |
| 69 | /*DO_SETBITS(schedsofttq, &gd->gd_sdelayed, SWI_TQ_PENDING)*/ | |
| 70 | /* YYY schedsoft what? */ | |
| 71 |