From patchwork Mon Aug 5 16:14:52 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Joel Fernandes X-Patchwork-Id: 2838870 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 09AA6BF535 for ; Mon, 5 Aug 2013 17:43:43 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id E506B20357 for ; Mon, 5 Aug 2013 17:43:41 +0000 (UTC) Received: from casper.infradead.org (casper.infradead.org [85.118.1.10]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id CD55020356 for ; Mon, 5 Aug 2013 17:43:40 +0000 (UTC) Received: from merlin.infradead.org ([2001:4978:20e::2]) by casper.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1V6NT1-0003jl-FJ; Mon, 05 Aug 2013 16:17:08 +0000 Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1V6NSD-0000B5-NW; Mon, 05 Aug 2013 16:16:17 +0000 Received: from devils.ext.ti.com ([198.47.26.153]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1V6NRn-00005o-4W for linux-arm-kernel@lists.infradead.org; Mon, 05 Aug 2013 16:15:52 +0000 Received: from dlelxv90.itg.ti.com ([172.17.2.17]) by devils.ext.ti.com (8.13.7/8.13.7) with ESMTP id r75GFChY013239; Mon, 5 Aug 2013 11:15:12 -0500 Received: from DLEE71.ent.ti.com (dlee71.ent.ti.com [157.170.170.114]) by dlelxv90.itg.ti.com (8.14.3/8.13.8) with ESMTP id r75GFBBd022209; Mon, 5 Aug 2013 11:15:11 -0500 Received: from dlelxv22.itg.ti.com (172.17.1.197) by DLEE71.ent.ti.com (157.170.170.114) with Microsoft SMTP Server id 14.2.342.3; Mon, 5 Aug 2013 11:15:11 -0500 Received: from joel-laptop.itg.ti.com (h0-56.vpn.ti.com [172.24.0.56]) by dlelxv22.itg.ti.com (8.13.8/8.13.8) with ESMTP id r75GEv1P026253; Mon, 5 Aug 2013 11:15:10 -0500 From: Joel Fernandes To: Tony Lindgren , Sekhar Nori , Santosh Shilimkar , Sricharan R , Rajendra Nayak , Lokesh Vutla , Matt Porter , Grant Likely , Rob Herring , Vinod Koul , Dan Williams , Mark Brown , Benoit Cousson , Russell King , Arnd Bergmann , Olof Johansson , Balaji TK , Gururaja Hebbar , Chris Ball , Jason Kridner Subject: [PATCH v3 07/12] dma: edma: Add function to dump a PaRAM set from PaRAM Date: Mon, 5 Aug 2013 11:14:52 -0500 Message-ID: <1375719297-12871-8-git-send-email-joelf@ti.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1375719297-12871-1-git-send-email-joelf@ti.com> References: <1375719297-12871-1-git-send-email-joelf@ti.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20130805_121551_293505_BB0AFF00 X-CRM114-Status: GOOD ( 12.43 ) X-Spam-Score: -5.2 (-----) Cc: Linux DaVinci Kernel List , Joel Fernandes , Linux MMC List , Linux Kernel Mailing List , Linux OMAP List , Linux ARM Kernel List X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-2.5 required=5.0 tests=BAYES_00,KHOP_BIG_TO_CC, RCVD_IN_DNSWL_MED,RP_MATCHES_RCVD,UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Previously, such a dump function was used but it wasn't reading from the PaRAM, rather just from a edmacc_param structure, we add a helpful function for debugging that directly reads from the PaRAM and gives the current state correctly (including links and interrupt information). Signed-off-by: Joel Fernandes --- drivers/dma/edma.c | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/drivers/dma/edma.c b/drivers/dma/edma.c index 080d669..a242269 100644 --- a/drivers/dma/edma.c +++ b/drivers/dma/edma.c @@ -102,6 +102,37 @@ static void edma_desc_free(struct virt_dma_desc *vdesc) kfree(container_of(vdesc, struct edma_desc, vdesc)); } +static inline void dump_pset(struct edma_chan *echan, int slot, + struct edmacc_param *pset_unused, int pset_idx) +{ + struct edmacc_param pset_local, *pset; + pset = &pset_local; + + edma_read_slot(slot, pset); + + dev_dbg(echan->vchan.chan.device->dev, + "\n pset[%d]:\n" + " chnum\t%d\n" + " slot\t%d\n" + " opt\t%08x\n" + " src\t%08x\n" + " dst\t%08x\n" + " abcnt\t%08x\n" + " ccnt\t%08x\n" + " bidx\t%08x\n" + " cidx\t%08x\n" + " lkrld\t%08x\n", + pset_idx, echan->ch_num, slot, + pset[0].opt, + pset[0].src, + pset[0].dst, + pset[0].a_b_cnt, + pset[0].ccnt, + pset[0].src_dst_bidx, + pset[0].src_dst_cidx, + pset[0].link_bcntrld); +} + /* Dispatch a queued descriptor to the controller (caller holds lock) */ static void edma_execute(struct edma_chan *echan) {