Author: markj Date: Mon May 1 16:32:28 2017 New Revision: 317651 URL: https://svnweb.freebsd.org/changeset/base/317651
Log: Add on_each_cpu() and wbinvd_on_all_cpus(). Reviewed by: hselasky MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D10550 Added: head/sys/compat/linuxkpi/common/include/asm/smp.h (contents, props changed) head/sys/compat/linuxkpi/common/include/linux/smp.h (contents, props changed) Modified: head/sys/compat/linuxkpi/common/src/linux_compat.c Added: head/sys/compat/linuxkpi/common/include/asm/smp.h ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/sys/compat/linuxkpi/common/include/asm/smp.h Mon May 1 16:32:28 2017 (r317651) @@ -0,0 +1,40 @@ +/*- + * Copyright (c) 2017 Mark Johnston <ma...@freebsd.org> + * + * 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. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. + * + * $FreeBSD$ + */ + +#ifndef _ASM_SMP_H_ +#define _ASM_SMP_H_ + +#if defined(__i386__) || defined(__amd64__) + +#define wbinvd_on_all_cpus() linux_wbinvd_on_all_cpus() + +int linux_wbinvd_on_all_cpus(void); + +#endif + +#endif /* _ASM_SMP_H_ */ Added: head/sys/compat/linuxkpi/common/include/linux/smp.h ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/sys/compat/linuxkpi/common/include/linux/smp.h Mon May 1 16:32:28 2017 (r317651) @@ -0,0 +1,39 @@ +/*- + * Copyright (c) 2017 Mark Johnston <ma...@freebsd.org> + * + * 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. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. + * + * $FreeBSD$ + */ + +#ifndef _LINUX_SMP_H_ +#define _LINUX_SMP_H_ + +#define on_each_cpu(cb, data, wait) ({ \ + CTASSERT(wait); \ + linux_on_each_cpu(cb, data); \ +}) + +extern int linux_on_each_cpu(void (*)(void *), void *); + +#endif /* _LINUX_SMP_H_ */ Modified: head/sys/compat/linuxkpi/common/src/linux_compat.c ============================================================================== --- head/sys/compat/linuxkpi/common/src/linux_compat.c Mon May 1 15:03:40 2017 (r317650) +++ head/sys/compat/linuxkpi/common/src/linux_compat.c Mon May 1 16:32:28 2017 (r317651) @@ -48,6 +48,9 @@ __FBSDID("$FreeBSD$"); #include <vm/vm.h> #include <vm/pmap.h> +#include <vm/vm_object.h> +#include <vm/vm_page.h> +#include <vm/vm_pager.h> #include <machine/stdarg.h> @@ -74,8 +77,11 @@ __FBSDID("$FreeBSD$"); #include <linux/list.h> #include <linux/compat.h> #include <linux/poll.h> +#include <linux/smp.h> -#include <vm/vm_pager.h> +#if defined(__i386__) || defined(__amd64__) +#include <asm/smp.h> +#endif SYSCTL_NODE(_compat, OID_AUTO, linuxkpi, CTLFLAG_RW, 0, "LinuxKPI parameters"); @@ -1619,6 +1625,31 @@ linux_irq_handler(void *ent) irqe->handler(irqe->irq, irqe->arg); } +#if defined(__i386__) || defined(__amd64__) +static void +wbinvd_cb(void *arg __unused) +{ + + wbinvd(); +} + +int +linux_wbinvd_on_all_cpus(void) +{ + + return (linux_on_each_cpu(wbinvd_cb, NULL)); +} +#endif + +int +linux_on_each_cpu(void callback(void *), void *data) +{ + + smp_rendezvous(smp_no_rendezvous_barrier, callback, + smp_no_rendezvous_barrier, data); + return (0); +} + struct linux_cdev * linux_find_cdev(const char *name, unsigned major, unsigned minor) { _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
