From patchwork Tue Jul 5 13:11:31 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Russell King - ARM Linux X-Patchwork-Id: 945072 Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) by demeter2.kernel.org (8.14.4/8.14.4) with ESMTP id p65DNbev003301 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Tue, 5 Jul 2011 13:23:59 GMT Received: from canuck.infradead.org ([2001:4978:20e::1]) by merlin.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1Qe5XD-00088e-Is; Tue, 05 Jul 2011 13:19:29 +0000 Received: from localhost ([127.0.0.1] helo=canuck.infradead.org) by canuck.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1Qe5Ro-0000IZ-CI; Tue, 05 Jul 2011 13:13:52 +0000 Received: from [2002:4e20:1eda::1] (helo=caramon.arm.linux.org.uk) by canuck.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1Qe5Pj-0008DH-6Z for linux-arm-kernel@lists.infradead.org; Tue, 05 Jul 2011 13:11:44 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=arm.linux.org.uk; s=caramon; h=Date:Sender:Message-Id:Content-Type:MIME-Version:Cc:Subject:Cc:To:From:References:In-Reply-To; bh=y0MjlaxM9+4fg4lsUQDksx914YmIXbpkHnOh6AhnJK0=; b=dC8SWKHTxKBQfxxcJmXX6g10kG4jgjc6Pttgm1Kc5RDmzof1dBSfGGFQWp/exigTf+w4ABhr2jQ1ClH0fSlllGv1wtmPsh5V8uwhcwSymEUf5DOKmzQVfP03ICtf26YDKOv4BzD2LV8f5PjfW0dE0ZvSXW8HA6rcyZM6EqEgyMs=; Received: from e0022681537dd.dyn.arm.linux.org.uk ([2002:4e20:1eda:1:222:68ff:fe15:37dd] helo=rmk-PC.arm.linux.org.uk) by caramon.arm.linux.org.uk with esmtpsa (TLSv1:AES256-SHA:256) (Exim 4.72) (envelope-from ) id 1Qe5PY-00033x-Ab; Tue, 05 Jul 2011 14:11:32 +0100 Received: from rmk by rmk-PC.arm.linux.org.uk with local (Exim 4.76) (envelope-from ) id 1Qe5PX-0005NK-Dk; Tue, 05 Jul 2011 14:11:31 +0100 In-Reply-To: <20110705131030.GE8286@n2100.arm.linux.org.uk> References: <20110705131030.GE8286@n2100.arm.linux.org.uk> From: Russell King - ARM Linux To: Vinod Koul , Dan Williams , Linus Walleij Subject: [PATCH 3/9] DMA: PL08x: clean up LLI debugging MIME-Version: 1.0 Content-Disposition: inline Message-Id: Date: Tue, 05 Jul 2011 14:11:31 +0100 X-CRM114-Version: 20090807-BlameThorstenAndJenny ( TRE 0.7.6 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20110705_091143_862231_E8DDD007 X-CRM114-Status: GOOD ( 14.38 ) X-Spam-Score: 1.2 (+) X-Spam-Report: SpamAssassin version 3.3.1 on canuck.infradead.org summary: Content analysis details: (1.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 1.3 RDNS_NONE Delivered to internal network by a host with no rDNS Cc: linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.6 (demeter2.kernel.org [140.211.167.43]); Tue, 05 Jul 2011 13:23:59 +0000 (UTC) Clean up debugging when setting up the LLI list. This reduces the amount of output while preserving the information, and makes it easier to read. Signed-off-by: Russell King --- drivers/dma/amba-pl08x.c | 33 ++++++++++++++++----------------- 1 files changed, 16 insertions(+), 17 deletions(-) diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c index c28eebf..f043284 100644 --- a/drivers/dma/amba-pl08x.c +++ b/drivers/dma/amba-pl08x.c @@ -617,25 +617,15 @@ static int pl08x_fill_llis_for_desc(struct pl08x_driver_data *pl08x, /* Set up the bus widths to the maximum */ bd.srcbus.buswidth = bd.srcbus.maxwidth; bd.dstbus.buswidth = bd.dstbus.maxwidth; - dev_vdbg(&pl08x->adev->dev, - "%s source bus is %d bytes wide, dest bus is %d bytes wide\n", - __func__, bd.srcbus.buswidth, bd.dstbus.buswidth); - /* * Bytes transferred == tsize * MIN(buswidths), not max(buswidths) */ max_bytes_per_lli = min(bd.srcbus.buswidth, bd.dstbus.buswidth) * PL080_CONTROL_TRANSFER_SIZE_MASK; - dev_vdbg(&pl08x->adev->dev, - "%s max bytes per lli = %zu\n", - __func__, max_bytes_per_lli); /* We need to count this down to zero */ bd.remainder = txd->len; - dev_vdbg(&pl08x->adev->dev, - "%s remainder = %zu\n", - __func__, bd.remainder); /* * Choose bus to align to @@ -644,6 +634,16 @@ static int pl08x_fill_llis_for_desc(struct pl08x_driver_data *pl08x, */ pl08x_choose_master_bus(&bd, &mbus, &sbus, cctl); + dev_vdbg(&pl08x->adev->dev, "src=0x%08x%s/%u dst=0x%08x%s/%u len=%zu llimax=%zu\n", + bd.srcbus.addr, cctl & PL080_CONTROL_SRC_INCR ? "+" : "", + bd.srcbus.buswidth, + bd.dstbus.addr, cctl & PL080_CONTROL_DST_INCR ? "+" : "", + bd.dstbus.buswidth, + bd.remainder, max_bytes_per_lli); + dev_vdbg(&pl08x->adev->dev, "mbus=%s sbus=%s\n", + mbus == &bd.srcbus ? "src" : "dst", + sbus == &bd.srcbus ? "src" : "dst"); + if (txd->len < mbus->buswidth) { /* Less than a bus width available - send as single bytes */ while (bd.remainder) { @@ -835,15 +835,14 @@ static int pl08x_fill_llis_for_desc(struct pl08x_driver_data *pl08x, { int i; + dev_vdbg(&pl08x->adev->dev, + "%-3s %-9s %-10s %-10s %-10s %s\n", + "lli", "", "csrc", "cdst", "clli", "cctl"); for (i = 0; i < num_llis; i++) { dev_vdbg(&pl08x->adev->dev, - "lli %d @%p: csrc=0x%08x, cdst=0x%08x, cctl=0x%08x, clli=0x%08x\n", - i, - &llis_va[i], - llis_va[i].src, - llis_va[i].dst, - llis_va[i].cctl, - llis_va[i].lli + "%3d @%p: 0x%08x 0x%08x 0x%08x 0x%08x\n", + i, &llis_va[i], llis_va[i].src, + llis_va[i].dst, llis_va[i].lli, llis_va[i].cctl ); } }