From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EFE1FC32792 for ; Thu, 3 Oct 2019 17:37:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BFC5620865 for ; Thu, 3 Oct 2019 17:37:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1570124221; bh=iw2RiHJuQkS8MmiAI+Oheb6nqhnVOozxDjGK6U5Lmy8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=eT+A6PxYp+4lcXiJfDk68WBu2eQ0n4HJ8u4mQyUSApvW7izAVRDO7ARbaGMgb3aTw hElDgeWJcLxS1SkvuyGizSeLq6hsXOfpNdbyvvKY76ZFekpL4PMSUISxH8izQhGbga ykczkuYKaBCsOkVdcneRVU6ZZuR2kMG7MVVPxSQg= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388829AbfJCRhA (ORCPT ); Thu, 3 Oct 2019 13:37:00 -0400 Received: from mail.kernel.org ([198.145.29.99]:49682 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729985AbfJCQEB (ORCPT ); Thu, 3 Oct 2019 12:04:01 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 815B2207FF; Thu, 3 Oct 2019 16:03:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1570118640; bh=iw2RiHJuQkS8MmiAI+Oheb6nqhnVOozxDjGK6U5Lmy8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=lhFmFXTRChAt0n0ugtyXDva3bDhHU/nh5Z90VtFvyL5V9GH5HgG40ujRlmfNvVFzo Pzf4Y9eJKdDHuKOB1SwNKRZts67juPlXuBM1Cavw/TmzTkrBmV96ir/8EmpN156rJU 9tPGIz2f6SU5GYoWOq3+iChTfafRenmAYGx1g89Y= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Peter Ujfalusi , Vinod Koul , Sasha Levin Subject: [PATCH 4.9 085/129] dmaengine: ti: edma: Do not reset reserved paRAM slots Date: Thu, 3 Oct 2019 17:53:28 +0200 Message-Id: <20191003154357.581377596@linuxfoundation.org> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191003154318.081116689@linuxfoundation.org> References: <20191003154318.081116689@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 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/edma.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/dma/edma.c b/drivers/dma/edma.c index 57962bff75324..72f31e837b1d5 100644 --- a/drivers/dma/edma.c +++ b/drivers/dma/edma.c @@ -2268,9 +2268,6 @@ 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; @@ -2283,6 +2280,12 @@ 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