Merge wrstuden-revivesa into HEAD. Catch some files that I forgot
to revive on HEAD in previous commit.
This commit is contained in:
wrstuden
parent
fc7511b00e
commit
4fb41e761e
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@ -0,0 +1,53 @@
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/* $NetBSD: saframe.h,v 1.7 2008/10/15 06:52:38 wrstuden Exp $ */
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/*-
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* Copyright (c) 2001 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
|
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* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the NetBSD
|
||||
* Foundation, Inc. and its contributors.
|
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* 4. Neither the name of The NetBSD Foundation nor the names of its
|
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* contributors may be used to endorse or promote products derived
|
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* from this software without specific prior written permission.
|
||||
*
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||||
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
||||
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
||||
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
||||
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _M68K_SAFRAME_H
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#define _M68K_SAFRAME_H
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#include <sys/sa.h>
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/*
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* Scheduler activations upcall frame
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*/
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struct saframe {
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int sa_ra;
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int sa_type;
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struct sa_t** sa_sas;
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int sa_events;
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int sa_interrupted;
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void* sa_arg;
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};
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#endif
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@ -0,0 +1,215 @@
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/* $NetBSD: netbsd32_sa.c,v 1.7 2008/10/15 06:52:38 wrstuden Exp $ */
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/*
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* Copyright (c) 2005 The NetBSD Foundation.
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* All rights reserved.
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*
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* This code is derived from software contributed to the NetBSD Foundation
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* by Quentin Garnier.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of The NetBSD Foundation nor the names of its
|
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* contributors may be used to endorse or promote products derived
|
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* from this software without specific prior written permission.
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||||
*
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||||
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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||||
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
||||
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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||||
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
||||
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: netbsd32_sa.c,v 1.7 2008/10/15 06:52:38 wrstuden Exp $");
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/dirent.h>
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#include <sys/mount.h>
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#include <sys/proc.h>
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#include <sys/sa.h>
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#include <sys/savar.h>
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#include <sys/syscallargs.h>
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#include <compat/netbsd32/netbsd32.h>
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#include <compat/netbsd32/netbsd32_syscallargs.h>
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#include <compat/netbsd32/netbsd32_conv.h>
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#include <compat/netbsd32/netbsd32_sa.h>
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/* SA emulation helpers */
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int
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netbsd32_sacopyout(int type, const void *src, void *dst)
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{
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switch (type) {
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case SAOUT_UCONTEXT:
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{
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const ucontext_t *u = src;
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ucontext32_t u32;
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memset(&u32, 0, sizeof(u32));
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u32.uc_flags = u->uc_flags;
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u32.uc_stack.ss_sp = (uintptr_t)u->uc_stack.ss_sp;
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u32.uc_stack.ss_size = u->uc_stack.ss_size;
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u32.uc_stack.ss_flags = u->uc_stack.ss_flags;
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return copyout(&u32, dst, sizeof(u32));
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} break;
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case SAOUT_SA_T:
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{
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const struct sa_t *sa = src;
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struct netbsd32_sa_t sa32;
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sa32.sa_id = sa->sa_id;
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sa32.sa_cpu = sa->sa_cpu;
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NETBSD32PTR32(sa32.sa_context, sa->sa_context);
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return copyout(&sa32, dst, sizeof(sa32));
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} break;
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case SAOUT_SAP_T:
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{
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void * const *p = src;
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netbsd32_pointer_t p32;
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NETBSD32PTR32(p32, *p);
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return copyout(&p32, dst, sizeof(p32));
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} break;
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}
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return EINVAL;
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}
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int
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netbsd32_upcallconv(struct lwp *l, int type, size_t *pargsize, void **parg,
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void (**pfunc)(void *))
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{
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switch (type & SA_UPCALL_TYPE_MASK) {
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case SA_UPCALL_SIGNAL:
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case SA_UPCALL_SIGEV:
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{
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siginfo32_t si32;
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siginfo_t *si = *parg;
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netbsd32_si_to_si32(&si32, si);
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/*
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* This is so wrong, but assuming
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* sizeof(siginfo32_t) < sizeof(siginfo_t) is not
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* very dangerous.
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*/
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memcpy(*parg, &si32, sizeof(si32));
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*pargsize = sizeof(si32);
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}
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}
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return 0;
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}
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void *
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netbsd32_sa_ucsp(void *arg)
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{
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ucontext32_t *uc32 = arg;
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return NETBSD32IPTR64(_UC_MACHINE32_SP(uc32));
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}
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/* Sycalls conversion */
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int
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netbsd32_sa_register(struct lwp *l,
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const struct netbsd32_sa_register_args *uap, register_t *retval)
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{
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/* {
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syscallarg(netbsd32_sa_upcall_t) new;
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syscallarg(netbsd32_sa_upcallp_t) old;
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syscallarg(int) flags;
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syscallarg(netbsd32_ssize_t) stackinfo_offset;
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} */
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sa_upcall_t prev;
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int error;
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error = dosa_register(l, NETBSD32PTR64(SCARG(uap, new)), &prev,
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SCARG(uap, flags), SCARG(uap, stackinfo_offset));
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if (error)
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return error;
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if (NETBSD32PTR64(SCARG(uap, old))) {
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netbsd32_sa_upcall_t old;
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NETBSD32PTR32(old, prev);
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return copyout(&old, NETBSD32PTR64(SCARG(uap, old)),
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sizeof(old));
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}
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return 0;
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}
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static int
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netbsd32_sa_copyin_stack(stack_t *stacks, int index, stack_t *dest)
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{
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stack32_t s32, *stacks32;
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int error;
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stacks32 = (stack32_t *)stacks;
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error = copyin(stacks32 + index, &s32, sizeof(s32));
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if (error)
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return error;
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dest->ss_sp = NETBSD32IPTR64(s32.ss_sp);
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dest->ss_size = s32.ss_size;
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dest->ss_flags = s32.ss_flags;
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return 0;
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}
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int
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netbsd32_sa_stacks(struct lwp *l, const struct netbsd32_sa_stacks_args *uap,
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register_t *retval)
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{
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/* {
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syscallarg(int) num;
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syscallarg(netbsd32_stackp_t) stacks;
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} */
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return sa_stacks1(l, retval, SCARG(uap, num),
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NETBSD32PTR64(SCARG(uap, stacks)), netbsd32_sa_copyin_stack);
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}
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int
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netbsd32_sa_setconcurrency(struct lwp *l,
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const struct netbsd32_sa_setconcurrency_args *uap, register_t *retval)
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{
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/* {
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syscallarg(int) concurrency;
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} */
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struct sys_sa_setconcurrency_args ua;
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NETBSD32TO64_UAP(concurrency);
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return sys_sa_setconcurrency(l, &ua, retval);
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}
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int
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netbsd32_sa_preempt(struct lwp *l, const struct netbsd32_sa_preempt_args *uap,
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register_t *retval)
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{
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/* {
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syscallarg(int) sa_id;
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} */
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struct sys_sa_preempt_args ua;
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NETBSD32TO64_UAP(sa_id);
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return sys_sa_preempt(l, &ua, retval);
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}
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@ -0,0 +1,53 @@
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/* $NetBSD: netbsd32_sa.h,v 1.5 2008/10/15 06:52:38 wrstuden Exp $ */
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/*
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* Copyright (c) 2006 The NetBSD Foundation.
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* All rights reserved.
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*
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* This code is derived from software contributed to the NetBSD Foundation
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* by Quentin Garnier.
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*
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* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. Neither the name of The NetBSD Foundation nor the names of its
|
||||
* contributors may be used to endorse or promote products derived
|
||||
* from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
||||
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
||||
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
||||
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
||||
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
||||
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
||||
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||||
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||||
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
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#ifndef _COMPAT_NETBSD32_SA_H_
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#define _COMPAT_NETBSD32_SA_H_
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struct netbsd32_sa_t {
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netbsd32_ucontextp sa_context;
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int sa_id;
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int sa_cpu;
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};
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typedef netbsd32_pointer_t netbsd32_sa_tp;
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int netbsd32_sacopyout(int, const void *, void *);
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int netbsd32_upcallconv(struct lwp *, int, size_t *, void **,
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void (**)(void *));
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void *netbsd32_sa_ucsp(void *);
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void getucontext32_sa(struct lwp *, ucontext32_t *);
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#endif /* !_COMPAT_NETBSD32_SA_H_ */
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@ -0,0 +1 @@
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/* $NetBSD: opt_sa.h,v 1.2 2008/10/15 06:52:38 wrstuden Exp $ */
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@ -0,0 +1,74 @@
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/* $NetBSD: sa.h,v 1.12 2008/10/15 06:52:38 wrstuden Exp $ */
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/*-
|
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* Copyright (c) 2001 The NetBSD Foundation, Inc.
|
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* All rights reserved.
|
||||
*
|
||||
* This code is derived from software contributed to The NetBSD Foundation
|
||||
* by Nathan J. Williams.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the NetBSD
|
||||
* Foundation, Inc. and its contributors.
|
||||
* 4. Neither the name of The NetBSD Foundation nor the names of its
|
||||
* contributors may be used to endorse or promote products derived
|
||||
* from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
||||
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
||||
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
||||
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
||||
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
||||
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
||||
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||||
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||||
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
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#ifndef _SYS_SA_H_
|
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#define _SYS_SA_H_
|
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|
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#include <sys/satypes.h>
|
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#include <sys/ucontext.h>
|
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|
||||
struct sa_t {
|
||||
ucontext_t *sa_context;
|
||||
int sa_id;
|
||||
int sa_cpu;
|
||||
};
|
||||
|
||||
/* kernel known per upcall stack data */
|
||||
struct sa_stackinfo_t {
|
||||
unsigned int sasi_stackgen; /* stack generation counter */
|
||||
};
|
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|
||||
#define SA_UPCALL_NEWPROC 0
|
||||
#define SA_UPCALL_PREEMPTED 1
|
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#define SA_UPCALL_BLOCKED 2
|
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#define SA_UPCALL_UNBLOCKED 3
|
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#define SA_UPCALL_SIGNAL 4
|
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#define SA_UPCALL_SIGEV 5
|
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#define SA_UPCALL_USER 6
|
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#define SA_UPCALL_NUPCALLS 7
|
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|
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#define SA_UPCALL_STRINGS "newproc", "preempted", "blocked", "unblocked", \
|
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"signal", "sigev", "user"
|
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|
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#define SA_FLAG_PREEMPT 0x0001 /* Generate upcalls on a vanilla preempt() */
|
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|
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#define SA_FLAG_STACKINFO 0x010000 /* Use stackinfo for upcall stack return */
|
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|
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int sa_system_disabled;
|
||||
|
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#endif /* !_SYS_SA_H_ */
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|
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@ -0,0 +1,43 @@
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/* $NetBSD: satypes.h,v 1.2 2008/10/15 06:52:38 wrstuden Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 2008 The NetBSD Foundation, Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This code is derived from software contributed to The NetBSD Foundation
|
||||
* by Nathan J. Williams.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Neither the name of The NetBSD Foundation nor the names of its
|
||||
* contributors may be used to endorse or promote products derived
|
||||
* from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
||||
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
||||
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
||||
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
||||
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
||||
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
||||
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||||
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||||
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#ifndef _SYS_SATYPES_H_
|
||||
#define _SYS_SATYPES_H_
|
||||
|
||||
/*
|
||||
* Type definitions for types used in SA code.
|
||||
*/
|
||||
|
||||
struct sa_t;
|
||||
|
||||
typedef void (*sa_upcall_t)(int, struct sa_t *[], int, int, void *);
|
||||
|
||||
#endif /* !_SYS_SATYPES_H_ */
|
||||
|
|
@ -0,0 +1,205 @@
|
|||
/* $NetBSD: savar.h,v 1.25 2008/10/15 06:52:38 wrstuden Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 2001 The NetBSD Foundation, Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This code is derived from software contributed to The NetBSD Foundation
|
||||
* by Nathan J. Williams.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the NetBSD
|
||||
* Foundation, Inc. and its contributors.
|
||||
* 4. Neither the name of The NetBSD Foundation nor the names of its
|
||||
* contributors may be used to endorse or promote products derived
|
||||
* from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
||||
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
||||
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
||||
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
||||
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
||||
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
||||
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||||
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||||
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
/*
|
||||
* Internal data usd by the scheduler activation implementation
|
||||
*/
|
||||
|
||||
#ifndef _SYS_SAVAR_H_
|
||||
#define _SYS_SAVAR_H_
|
||||
|
||||
#include <sys/lock.h>
|
||||
#include <sys/tree.h>
|
||||
#include <sys/queue.h>
|
||||
#include <sys/sleepq.h>
|
||||
|
||||
union sau_state {
|
||||
struct {
|
||||
ucontext_t ss_ctx;
|
||||
struct sa_t ss_sa;
|
||||
} ss_captured;
|
||||
struct {
|
||||
struct lwp *ss_lwp;
|
||||
} ss_deferred;
|
||||
};
|
||||
|
||||
struct sa_emul {
|
||||
size_t sae_ucsize; /* Size of ucontext_t */
|
||||
size_t sae_sasize; /* Size of sa_t */
|
||||
size_t sae_sapsize; /* Size of (sa_t *) */
|
||||
int (*sae_sacopyout)(int, const void *, void *);
|
||||
int (*sae_upcallconv)(struct lwp *, int, size_t *, void **,
|
||||
void (**)(void *));
|
||||
void (*sae_upcall)(struct lwp *, int, int, int, void *,
|
||||
void *, void *, sa_upcall_t);
|
||||
void (*sae_getucontext)(struct lwp *, void *);
|
||||
void *(*sae_ucsp)(void *); /* Stack ptr from an ucontext_t */
|
||||
};
|
||||
|
||||
struct sadata_upcall {
|
||||
SIMPLEQ_ENTRY(sadata_upcall) sau_next;
|
||||
int sau_flags;
|
||||
int sau_type;
|
||||
size_t sau_argsize;
|
||||
void *sau_arg;
|
||||
void (*sau_argfreefunc)(void *);
|
||||
stack_t sau_stack;
|
||||
union sau_state sau_event;
|
||||
union sau_state sau_interrupted;
|
||||
};
|
||||
|
||||
#define SAU_FLAG_DEFERRED_EVENT 0x1
|
||||
#define SAU_FLAG_DEFERRED_INTERRUPTED 0x2
|
||||
|
||||
#define SA_UPCALL_TYPE_MASK 0x00FF
|
||||
|
||||
#define SA_UPCALL_DEFER_EVENT 0x1000
|
||||
#define SA_UPCALL_DEFER_INTERRUPTED 0x2000
|
||||
#define SA_UPCALL_DEFER (SA_UPCALL_DEFER_EVENT | \
|
||||
SA_UPCALL_DEFER_INTERRUPTED)
|
||||
#define SA_UPCALL_LOCKED_EVENT 0x4000
|
||||
#define SA_UPCALL_LOCKED_INTERRUPTED 0x8000
|
||||
|
||||
struct sastack {
|
||||
stack_t sast_stack;
|
||||
RB_ENTRY(sastack) sast_node;
|
||||
unsigned int sast_gen;
|
||||
};
|
||||
|
||||
/*
|
||||
* Locking:
|
||||
*
|
||||
* m: sadata::sa_mutex
|
||||
* p: proc::p_lock
|
||||
* v: sadata_vp::savp_mutex
|
||||
* (: unlocked, stable
|
||||
* !: unlocked, may only be reliably accessed by the blessed LWP itself
|
||||
*/
|
||||
struct sadata_vp {
|
||||
kmutex_t savp_mutex; /* (: mutex */
|
||||
int savp_id; /* (: "virtual processor" identifier */
|
||||
SLIST_ENTRY(sadata_vp) savp_next; /* m: link to next sadata_vp */
|
||||
struct lwp *savp_lwp; /* !: lwp on "virtual processor" */
|
||||
struct lwp *savp_blocker; /* !: recently blocked lwp */
|
||||
sleepq_t savp_woken; /* m: list of unblocked lwps */
|
||||
sleepq_t savp_lwpcache; /* m: list of cached lwps */
|
||||
vaddr_t savp_faultaddr; /* !: page fault address */
|
||||
vaddr_t savp_ofaultaddr; /* !: old page fault address */
|
||||
struct sadata_upcall *savp_sleeper_upcall;
|
||||
/* !: cached upcall data */
|
||||
SIMPLEQ_HEAD(, sadata_upcall) savp_upcalls; /* ?: pending upcalls */
|
||||
int savp_woken_count; /* m: count of woken lwps */
|
||||
int savp_lwpcache_count; /* m: count of cached lwps */
|
||||
int savp_pflags; /* !: blessed-private flags */
|
||||
};
|
||||
|
||||
#define SAVP_FLAG_NOUPCALLS 0x0001 /* Already did upcalls, don't redo */
|
||||
#define SAVP_FLAG_DELIVERING 0x0002 /* Delivering an upcall, no block */
|
||||
|
||||
/*
|
||||
* Locking:
|
||||
*
|
||||
* m: sadata::sa_mutex
|
||||
* p: proc::p_lock
|
||||
* (: unlocked, stable
|
||||
*/
|
||||
struct sadata {
|
||||
kmutex_t sa_mutex; /* (: lock on these fields */
|
||||
int sa_flag; /* m: SA_* flags */
|
||||
sa_upcall_t sa_upcall; /* m: upcall entry point */
|
||||
int sa_concurrency; /* m: current concurrency */
|
||||
int sa_maxconcurrency; /* m: requested concurrency */
|
||||
int sa_stackchg; /* m: stacks change indicator */
|
||||
RB_HEAD(sasttree, sastack) sa_stackstree; /* s, m: tree of upcall stacks */
|
||||
struct sastack *sa_stacknext; /* m: next free stack */
|
||||
ssize_t sa_stackinfo_offset; /* m: offset from ss_sp to stackinfo data */
|
||||
int sa_nstacks; /* m: number of upcall stacks */
|
||||
sigset_t sa_sigmask; /* p: process-wide masked sigs*/
|
||||
SLIST_HEAD(, sadata_vp) sa_vps; /* m: virtual processors */
|
||||
kcondvar_t sa_cv; /* m: condvar for sa_yield */
|
||||
};
|
||||
|
||||
#define SA_FLAG_ALL SA_FLAG_PREEMPT
|
||||
|
||||
#define SA_MAXNUMSTACKS 16 /* Maximum number of upcall stacks per VP. */
|
||||
|
||||
struct sadata_upcall *sadata_upcall_alloc(int);
|
||||
void sadata_upcall_free(struct sadata_upcall *);
|
||||
void sadata_upcall_drain(void);
|
||||
|
||||
void sa_awaken(struct lwp *);
|
||||
void sa_release(struct proc *);
|
||||
void sa_switch(struct lwp *);
|
||||
void sa_preempt(struct lwp *);
|
||||
void sa_yield(struct lwp *);
|
||||
int sa_upcall(struct lwp *, int, struct lwp *, struct lwp *, size_t, void *,
|
||||
void (*)(void *));
|
||||
|
||||
void sa_putcachelwp(struct proc *, struct lwp *);
|
||||
struct lwp *sa_getcachelwp(struct proc *, struct sadata_vp *);
|
||||
|
||||
/*
|
||||
* API permitting other parts of the kernel to indicate that they
|
||||
* are entering code paths in which blocking events should NOT generate
|
||||
* upcalls to an SA process. These routines should ONLY be used by code
|
||||
* involved in scheduling or process/thread initialization (such as
|
||||
* stack copying). These calls must be balanced. They may be nested, but
|
||||
* MUST be released in a LIFO order. These calls assume that the lwp is
|
||||
* locked.
|
||||
*/
|
||||
typedef int sa_critpath_t;
|
||||
void sa_critpath_enter(struct lwp *, sa_critpath_t *);
|
||||
void sa_critpath_exit(struct lwp *, sa_critpath_t *);
|
||||
|
||||
|
||||
void sa_unblock_userret(struct lwp *);
|
||||
void sa_upcall_userret(struct lwp *);
|
||||
void cpu_upcall(struct lwp *, int, int, int, void *, void *, void *, sa_upcall_t);
|
||||
|
||||
typedef int (*sa_copyin_stack_t)(stack_t *, int, stack_t *);
|
||||
int sa_stacks1(struct lwp *, register_t *, int, stack_t *,
|
||||
sa_copyin_stack_t);
|
||||
int dosa_register(struct lwp *, sa_upcall_t, sa_upcall_t *, int, ssize_t);
|
||||
|
||||
void *sa_ucsp(void *);
|
||||
|
||||
#define SAOUT_UCONTEXT 0
|
||||
#define SAOUT_SA_T 1
|
||||
#define SAOUT_SAP_T 2
|
||||
|
||||
#endif /* !_SYS_SAVAR_H_ */
|
||||
Loading…
Reference in New Issue