From owner-svn-src-head@FreeBSD.ORG Thu Jun 25 18:52:17 2009 Return-Path: Delivered-To: svn-src-head@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id CFE431065680; Thu, 25 Jun 2009 18:52:17 +0000 (UTC) (envelope-from jhb@freebsd.org) Received: from cyrus.watson.org (cyrus.watson.org [65.122.17.42]) by mx1.freebsd.org (Postfix) with ESMTP id A28B18FC19; Thu, 25 Jun 2009 18:52:17 +0000 (UTC) (envelope-from jhb@freebsd.org) Received: from bigwig.baldwin.cx (66.111.2.69.static.nyinternet.net [66.111.2.69]) by cyrus.watson.org (Postfix) with ESMTPSA id 5986F46B17; Thu, 25 Jun 2009 14:52:17 -0400 (EDT) Received: from jhbbsd.hudson-trading.com (unknown [209.249.190.8]) by bigwig.baldwin.cx (Postfix) with ESMTPA id 37DBF8A083; Thu, 25 Jun 2009 14:52:16 -0400 (EDT) From: John Baldwin To: src-committers@freebsd.org Date: Thu, 25 Jun 2009 14:46:13 -0400 User-Agent: KMail/1.9.7 References: <200906251813.n5PIDkfl060004@svn.freebsd.org> In-Reply-To: <200906251813.n5PIDkfl060004@svn.freebsd.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200906251446.14106.jhb@freebsd.org> X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.0.1 (bigwig.baldwin.cx); Thu, 25 Jun 2009 14:52:16 -0400 (EDT) X-Virus-Scanned: clamav-milter 0.95.1 at bigwig.baldwin.cx X-Virus-Status: Clean X-Spam-Status: No, score=-2.5 required=4.2 tests=AWL,BAYES_00,RDNS_NONE autolearn=no version=3.2.5 X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on bigwig.baldwin.cx Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org Subject: Re: svn commit: r194985 - in head/sys: amd64/amd64 amd64/include i386/i386 i386/include X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 25 Jun 2009 18:52:18 -0000 On Thursday 25 June 2009 2:13:46 pm John Baldwin wrote: > Author: jhb > Date: Thu Jun 25 18:13:46 2009 > New Revision: 194985 > URL: http://svn.freebsd.org/changeset/base/194985 > > Log: > - Restore the behavior of pre-allocating IDT vectors for MSI interrupts. > This is mostly important for the multiple MSI message case where the > IDT vectors for the entire group need to be allocated together. This > also restores the assumptions made by the PCI bus code that it could > invoke PCIB_MAP_MSI() once MSI vectors were allocated. > - To avoid whiplash with CPU assignments, change the way that CPUs are > assigned to interrupt sources on activation. Instead of assigning the > CPU via pic_assign_cpu() before calling enable_intr(), allow the > different interrupt source drivers to ask the MD interrupt code which > CPU to use when they allocate an IDT vector. I/O APIC interrupt pins > do this in their pic_enable_intr() routines giving the same behavior as > before. MSI sources do it when the IDT vectors are allocated during > msi_alloc() and msix_alloc(). > - Change the intr_table_lock from an sx lock to a mutex. Incidentally, this fixes the remaining issues Robert was having with VT switch with Intel DRM drivers. It is still not possible to migrate multiple MSI interrupts, but I intend to work on that next. -- John Baldwin