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[209.132.180.67]) by mx.google.com with ESMTP id a15si7449909eda.222.2019.09.23.15.33.59; Mon, 23 Sep 2019 15:34:23 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=2rTI2a9x; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2391710AbfIVSsk (ORCPT + 99 others); Sun, 22 Sep 2019 14:48:40 -0400 Received: from mail.kernel.org ([198.145.29.99]:45104 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2391559AbfIVSsV (ORCPT ); Sun, 22 Sep 2019 14:48:21 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 25F3D2186A; Sun, 22 Sep 2019 18:48:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1569178101; bh=LHr0zQNTuWMvB8KfJDg2lp4+b/SuKXqID+v+rc6sg8g=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=2rTI2a9xqBOLyfRHG8Jhsqz6UE4pUTOsLFzOSe8PhIMP+FdAUPh3WmrJfrovCYTj9 qNmqckytqvgjgyYnUKW5NbVngbfwgAKQ0ASYYGpfXxjd6MvB7gqReOWTCdyy99/BFK g2c3VJKuwVou3qg6t+v5gvnFuDsVQD/98I8VCp7w= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Peter Ujfalusi , Vinod Koul , Sasha Levin , dmaengine@vger.kernel.org Subject: [PATCH AUTOSEL 5.3 163/203] dmaengine: ti: edma: Do not reset reserved paRAM slots Date: Sun, 22 Sep 2019 14:43:09 -0400 Message-Id: <20190922184350.30563-163-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190922184350.30563-1-sashal@kernel.org> References: <20190922184350.30563-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Peter Ujfalusi [ Upstream commit c5dbe60664b3660f5ac5854e21273ea2e7ff698f ] Skip resetting paRAM slots marked as reserved as they might be used by other cores. Signed-off-by: Peter Ujfalusi Link: https://lore.kernel.org/r/20190823125618.8133-2-peter.ujfalusi@ti.com Signed-off-by: Vinod Koul Signed-off-by: Sasha Levin --- drivers/dma/ti/edma.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/dma/ti/edma.c b/drivers/dma/ti/edma.c index ceabdea40ae0f..982631d4e1f8a 100644 --- a/drivers/dma/ti/edma.c +++ b/drivers/dma/ti/edma.c @@ -2273,9 +2273,6 @@ static int edma_probe(struct platform_device *pdev) ecc->default_queue = info->default_queue; - for (i = 0; i < ecc->num_slots; i++) - edma_write_slot(ecc, i, &dummy_paramset); - if (info->rsv) { /* Set the reserved slots in inuse list */ rsv_slots = info->rsv->rsv_slots; @@ -2288,6 +2285,12 @@ static int edma_probe(struct platform_device *pdev) } } + for (i = 0; i < ecc->num_slots; i++) { + /* Reset only unused - not reserved - paRAM slots */ + if (!test_bit(i, ecc->slot_inuse)) + edma_write_slot(ecc, i, &dummy_paramset); + } + /* Clear the xbar mapped channels in unused list */ xbar_chans = info->xbar_chans; if (xbar_chans) { -- 2.20.1