From owner-svn-src-head@FreeBSD.ORG Mon Jan 6 16:07:28 2014 Return-Path: Delivered-To: svn-src-head@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 2B9803C7; Mon, 6 Jan 2014 16:07:28 +0000 (UTC) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:1900:2254:2068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 182241FC0; Mon, 6 Jan 2014 16:07:28 +0000 (UTC) Received: from svn.freebsd.org ([127.0.1.70]) by svn.freebsd.org (8.14.7/8.14.7) with ESMTP id s06G7RCY023282; Mon, 6 Jan 2014 16:07:27 GMT (envelope-from ian@svn.freebsd.org) Received: (from ian@localhost) by svn.freebsd.org (8.14.7/8.14.7/Submit) id s06G7RNC023281; Mon, 6 Jan 2014 16:07:27 GMT (envelope-from ian@svn.freebsd.org) Message-Id: <201401061607.s06G7RNC023281@svn.freebsd.org> From: Ian Lepore Date: Mon, 6 Jan 2014 16:07:27 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r260372 - head/sys/arm/arm X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.17 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: Mon, 06 Jan 2014 16:07:28 -0000 Author: ian Date: Mon Jan 6 16:07:27 2014 New Revision: 260372 URL: http://svnweb.freebsd.org/changeset/base/260372 Log: Allow 'no static device mappings' to potentially work. It's not clear that every arm system must have some static mappings to work correctly (although currently they all do), so remove some panic() calls (which would never been seen anyway, because they would happen before a console is available). Modified: head/sys/arm/arm/devmap.c Modified: head/sys/arm/arm/devmap.c ============================================================================== --- head/sys/arm/arm/devmap.c Mon Jan 6 15:48:16 2014 (r260371) +++ head/sys/arm/arm/devmap.c Mon Jan 6 16:07:27 2014 (r260372) @@ -67,11 +67,8 @@ arm_devmap_lastaddr() if (akva_devmap_idx > 0) return (akva_devmap_vaddr); - if (devmap_table == NULL) - panic("arm_devmap_lastaddr(): No devmap table registered."); - lowaddr = ARM_VECTORS_HIGH; - for (pd = devmap_table; pd->pd_size != 0; ++pd) { + for (pd = devmap_table; pd != NULL && pd->pd_size != 0; ++pd) { if (lowaddr > pd->pd_va) lowaddr = pd->pd_va; } @@ -145,22 +142,21 @@ arm_devmap_bootstrap(vm_offset_t l1pt, c { const struct arm_devmap_entry *pd; + devmap_bootstrap_done = true; + /* - * If given a table pointer, use it, else ensure a table was previously - * registered. This happens early in boot, and there's a good chance - * the panic message won't be seen, but there's not much we can do. + * If given a table pointer, use it. Otherwise, if a table was + * previously registered, use it. Otherwise, no work to do. */ if (table != NULL) devmap_table = table; else if (devmap_table == NULL) - panic("arm_devmap_bootstrap(): No devmap table registered"); + return; for (pd = devmap_table; pd->pd_size != 0; ++pd) { pmap_map_chunk(l1pt, pd->pd_va, pd->pd_pa, pd->pd_size, pd->pd_prot,pd->pd_cache); } - - devmap_bootstrap_done = true; } /*