From owner-svn-src-head@FreeBSD.ORG Tue Feb 17 19:17:25 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 8508510656FA; Tue, 17 Feb 2009 19:17:25 +0000 (UTC) (envelope-from mav@FreeBSD.org) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:4f8:fff6::2c]) by mx1.freebsd.org (Postfix) with ESMTP id 582D18FC17; Tue, 17 Feb 2009 19:17:25 +0000 (UTC) (envelope-from mav@FreeBSD.org) Received: from svn.freebsd.org (localhost [127.0.0.1]) by svn.freebsd.org (8.14.3/8.14.3) with ESMTP id n1HJHPN6024878; Tue, 17 Feb 2009 19:17:25 GMT (envelope-from mav@svn.freebsd.org) Received: (from mav@localhost) by svn.freebsd.org (8.14.3/8.14.3/Submit) id n1HJHPhI024877; Tue, 17 Feb 2009 19:17:25 GMT (envelope-from mav@svn.freebsd.org) Message-Id: <200902171917.n1HJHPhI024877@svn.freebsd.org> From: Alexander Motin Date: Tue, 17 Feb 2009 19:17:25 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Cc: Subject: svn commit: r188725 - head/sys/dev/mmc 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: Tue, 17 Feb 2009 19:17:27 -0000 Author: mav Date: Tue Feb 17 19:17:25 2009 New Revision: 188725 URL: http://svn.freebsd.org/changeset/base/188725 Log: Add kernel dumping support. Works fine with sdhci controller driver. Modified: head/sys/dev/mmc/mmcsd.c Modified: head/sys/dev/mmc/mmcsd.c ============================================================================== --- head/sys/dev/mmc/mmcsd.c Tue Feb 17 19:12:15 2009 (r188724) +++ head/sys/dev/mmc/mmcsd.c Tue Feb 17 19:17:25 2009 (r188725) @@ -91,6 +91,8 @@ static int mmcsd_detach(device_t dev); static int mmcsd_open(struct disk *dp); static int mmcsd_close(struct disk *dp); static void mmcsd_strategy(struct bio *bp); +static int mmcsd_dump(void *arg, void *virtual, vm_offset_t physical, + off_t offset, size_t length); static void mmcsd_task(void *arg); static const char *mmcsd_card_name(device_t dev); @@ -130,7 +132,7 @@ mmcsd_attach(device_t dev) d->d_open = mmcsd_open; d->d_close = mmcsd_close; d->d_strategy = mmcsd_strategy; - // d->d_dump = mmcsd_dump; Need polling mmc layer + d->d_dump = mmcsd_dump; d->d_name = "mmcsd"; d->d_drv1 = sc; d->d_maxsize = 4*1024*1024; /* Maximum defined SD card AU size. */ @@ -415,6 +417,33 @@ mmcsd_delete(struct mmcsd_softc *sc, str return (end); } +static int +mmcsd_dump(void *arg, void *virtual, vm_offset_t physical, + off_t offset, size_t length) +{ + struct disk *disk = arg; + struct mmcsd_softc *sc = (struct mmcsd_softc *)disk->d_drv1; + device_t dev = sc->dev; + struct bio bp; + daddr_t block, end; + + /* length zero is special and really means flush buffers to media */ + if (!length) + return (0); + + bzero(&bp, sizeof(struct bio)); + bp.bio_disk = disk; + bp.bio_pblkno = offset / disk->d_sectorsize; + bp.bio_bcount = length; + bp.bio_data = virtual; + bp.bio_cmd = BIO_WRITE; + end = bp.bio_pblkno + bp.bio_bcount / sc->disk->d_sectorsize; + MMCBUS_ACQUIRE_BUS(device_get_parent(dev), dev); + block = mmcsd_rw(sc, &bp); + MMCBUS_RELEASE_BUS(device_get_parent(dev), dev); + return ((end < block) ? EIO : 0); +} + static void mmcsd_task(void *arg) {