From owner-svn-src-head@freebsd.org  Sun Dec 10 23:06:46 2017
Return-Path: <owner-svn-src-head@freebsd.org>
Delivered-To: svn-src-head@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id 9073DEA0741;
 Sun, 10 Dec 2017 23:06:46 +0000 (UTC) (envelope-from ian@FreeBSD.org)
Received: from repo.freebsd.org (repo.freebsd.org
 [IPv6:2610:1c1:1:6068::e6a:0])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
 (Client did not present a certificate)
 by mx1.freebsd.org (Postfix) with ESMTPS id 522D667603;
 Sun, 10 Dec 2017 23:06:46 +0000 (UTC) (envelope-from ian@FreeBSD.org)
Received: from repo.freebsd.org ([127.0.1.37])
 by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id vBAN6jg8082724;
 Sun, 10 Dec 2017 23:06:45 GMT (envelope-from ian@FreeBSD.org)
Received: (from ian@localhost)
 by repo.freebsd.org (8.15.2/8.15.2/Submit) id vBAN6jdL082723;
 Sun, 10 Dec 2017 23:06:45 GMT (envelope-from ian@FreeBSD.org)
Message-Id: <201712102306.vBAN6jdL082723@repo.freebsd.org>
X-Authentication-Warning: repo.freebsd.org: ian set sender to ian@FreeBSD.org
 using -f
From: Ian Lepore <ian@FreeBSD.org>
Date: Sun, 10 Dec 2017 23:06:45 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
 svn-src-head@freebsd.org
Subject: svn commit: r326754 - head/stand/uboot/lib
X-SVN-Group: head
X-SVN-Commit-Author: ian
X-SVN-Commit-Paths: head/stand/uboot/lib
X-SVN-Commit-Revision: 326754
X-SVN-Commit-Repository: base
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: 2.1.25
Precedence: list
List-Id: SVN commit messages for the src tree for head/-current
 <svn-src-head.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/svn-src-head>,
 <mailto:svn-src-head-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-head/>
List-Post: <mailto:svn-src-head@freebsd.org>
List-Help: <mailto:svn-src-head-request@freebsd.org?subject=help>
List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/svn-src-head>,
 <mailto:svn-src-head-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sun, 10 Dec 2017 23:06:46 -0000

Author: ian
Date: Sun Dec 10 23:06:45 2017
New Revision: 326754
URL: https://svnweb.freebsd.org/changeset/base/326754

Log:
  When building for arm arches, set PKGALIGN to the max cache line size
  supported by the arch, to meet u-boot's requirement that I/O be done
  in cache-aligned chunks.
  
  PR:		223977

Modified:
  head/stand/uboot/lib/libuboot.h

Modified: head/stand/uboot/lib/libuboot.h
==============================================================================
--- head/stand/uboot/lib/libuboot.h	Sun Dec 10 23:03:13 2017	(r326753)
+++ head/stand/uboot/lib/libuboot.h	Sun Dec 10 23:06:45 2017	(r326754)
@@ -45,9 +45,16 @@ struct uboot_devdesc
 #define d_disk d_kind.disk
 
 /*
- * Default network packet alignment in memory
+ * Default network packet alignment in memory.  On arm arches packets must be
+ * aligned to cacheline boundaries.
  */
+#if defined(__aarch64__)
+#define	PKTALIGN	128
+#elif defined(__arm__)
+#define	PKTALIGN	64
+#else
 #define	PKTALIGN	32
+#endif
 
 int uboot_getdev(void **vdev, const char *devspec, const char **path);
 char *uboot_fmtdev(void *vdev);