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=-9.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, 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 7F1CCC3A5A2 for ; Fri, 23 Aug 2019 12:56:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 55DCC22CEC for ; Fri, 23 Aug 2019 12:56:42 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="pIDS9PRE" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389846AbfHWM4K (ORCPT ); Fri, 23 Aug 2019 08:56:10 -0400 Received: from fllv0015.ext.ti.com ([198.47.19.141]:58864 "EHLO fllv0015.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726197AbfHWM4K (ORCPT ); Fri, 23 Aug 2019 08:56:10 -0400 Received: from fllv0035.itg.ti.com ([10.64.41.0]) by fllv0015.ext.ti.com (8.15.2/8.15.2) with ESMTP id x7NCu3Aq103808; Fri, 23 Aug 2019 07:56:04 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1566564964; bh=GXDyiG/PPmHFuQlZYe5lHx0rEDkmlewlyaVELKgzcow=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=pIDS9PREJWRUQO5xoR+AfT1NASJB+hkayTXAdV1jBQCPqU3tkY0dDBGbUzRMXZ0T5 tF7tRVsnk4OYRTuqBr/fbPZ2LyyUgAHGq/RcWAgy+LsTfCag5yYuSqZfahuBKpmULq K5oZvidNkaKv92JyAnBiyvKtG9pmOD57EQkAJnt0= Received: from DLEE100.ent.ti.com (dlee100.ent.ti.com [157.170.170.30]) by fllv0035.itg.ti.com (8.15.2/8.15.2) with ESMTPS id x7NCu3UV015095 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 23 Aug 2019 07:56:03 -0500 Received: from DLEE107.ent.ti.com (157.170.170.37) by DLEE100.ent.ti.com (157.170.170.30) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5; Fri, 23 Aug 2019 07:56:03 -0500 Received: from lelv0327.itg.ti.com (10.180.67.183) by DLEE107.ent.ti.com (157.170.170.37) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5 via Frontend Transport; Fri, 23 Aug 2019 07:56:03 -0500 Received: from feketebors.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id x7NCtwkf092319; Fri, 23 Aug 2019 07:56:01 -0500 From: Peter Ujfalusi To: , CC: , , , , , Subject: [PATCH 1/5] dmaengine: ti: edma: Do not reset reserved paRAM slots Date: Fri, 23 Aug 2019 15:56:14 +0300 Message-ID: <20190823125618.8133-2-peter.ujfalusi@ti.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20190823125618.8133-1-peter.ujfalusi@ti.com> References: <20190823125618.8133-1-peter.ujfalusi@ti.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: dmaengine-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org Skip resetting paRAM slots marked as reserved as they might be used by other cores. Signed-off-by: Peter Ujfalusi --- 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 54895112ba59..1aae95cc0d4b 100644 --- a/drivers/dma/ti/edma.c +++ b/drivers/dma/ti/edma.c @@ -2338,9 +2338,6 @@ 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; @@ -2353,6 +2350,12 @@ 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) { -- Peter Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki