From patchwork Thu Nov 11 12:16:29 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yang Li X-Patchwork-Id: 70796 X-Patchwork-Delegate: galak@kernel.crashing.org Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from bilbo.ozlabs.org (localhost [127.0.0.1]) by ozlabs.org (Postfix) with ESMTP id 49CEEB7363 for ; Thu, 11 Nov 2010 22:26:25 +1100 (EST) Received: from VA3EHSOBE001.bigfish.com (va3ehsobe001.messaging.microsoft.com [216.32.180.11]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (Client CN "mail.global.frontbridge.com", Issuer "Cybertrust SureServer Standard Validation CA" (verified OK)) by ozlabs.org (Postfix) with ESMTPS id B517EB7126 for ; Thu, 11 Nov 2010 22:26:17 +1100 (EST) Received: from mail127-va3-R.bigfish.com (10.7.14.243) by VA3EHSOBE001.bigfish.com (10.7.40.21) with Microsoft SMTP Server id 14.1.225.8; Thu, 11 Nov 2010 11:26:11 +0000 Received: from mail127-va3 (localhost.localdomain [127.0.0.1]) by mail127-va3-R.bigfish.com (Postfix) with ESMTP id 9ACD8F58463 for ; Thu, 11 Nov 2010 11:26:11 +0000 (UTC) X-SpamScore: 0 X-BigFish: VS0(zzzz1202hzz8275bhz2dh2a8h668h61h) X-Spam-TCS-SCL: 0:0 X-Forefront-Antispam-Report: KIP:(null); UIP:(null); IPVD:NLI; H:de01egw02.freescale.net; RD:de01egw02.freescale.net; EFVD:NLI Received: from mail127-va3 (localhost.localdomain [127.0.0.1]) by mail127-va3 (MessageSwitch) id 1289474771480806_20542; Thu, 11 Nov 2010 11:26:11 +0000 (UTC) Received: from VA3EHSMHS009.bigfish.com (unknown [10.7.14.241]) by mail127-va3.bigfish.com (Postfix) with ESMTP id 72A0F1C2004E for ; Thu, 11 Nov 2010 11:26:11 +0000 (UTC) Received: from de01egw02.freescale.net (192.88.165.103) by VA3EHSMHS009.bigfish.com (10.7.99.19) with Microsoft SMTP Server (TLS) id 14.1.225.8; Thu, 11 Nov 2010 11:26:04 +0000 Received: from de01smr02.am.mot.com (de01smr02.freescale.net [10.208.0.151]) by de01egw02.freescale.net (8.14.3/8.14.3) with ESMTP id oABBQ3fE022417 for ; Thu, 11 Nov 2010 04:26:03 -0700 (MST) Received: from zch01exm26.fsl.freescale.net (zch01exm26.ap.freescale.net [10.192.129.221]) by de01smr02.am.mot.com (8.13.1/8.13.0) with ESMTP id oABBhIvb025657 for ; Thu, 11 Nov 2010 05:43:19 -0600 (CST) Received: from localhost ([10.193.20.133]) by zch01exm26.fsl.freescale.net with Microsoft SMTPSVC(6.0.3790.4675); Thu, 11 Nov 2010 19:26:51 +0800 From: Li Yang To: Subject: [PATCH v2] fsldma: add support to 36-bit physical address Date: Thu, 11 Nov 2010 20:16:29 +0800 Message-ID: <1289477789-10651-1-git-send-email-leoli@freescale.com> X-Mailer: git-send-email 1.6.6-rc1.GIT X-OriginalArrivalTime: 11 Nov 2010 11:26:51.0926 (UTC) FILETIME=[565C5B60:01CB8193] MIME-Version: 1.0 X-OriginatorOrg: freescale.com Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.13 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Expand the dma_mask of fsldma device to 36-bit, indicating that the DMA engine can deal with 36-bit physical address and does not need the SWIOTLB to create bounce buffer for it when doing dma_map_*(). Signed-off-by: Li Yang Acked-by: Kumar Gala --- Add more detailed commit message drivers/dma/fsldma.c | 4 +++- 1 files changed, 3 insertions(+), 1 deletions(-) diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c index cea08be..8c79b37 100644 --- a/drivers/dma/fsldma.c +++ b/drivers/dma/fsldma.c @@ -1,7 +1,7 @@ /* * Freescale MPC85xx, MPC83xx DMA Engine support * - * Copyright (C) 2007 Freescale Semiconductor, Inc. All rights reserved. + * Copyright (C) 2007-2010 Freescale Semiconductor, Inc. All rights reserved. * * Author: * Zhang Wei , Jul 2007 @@ -1338,6 +1338,8 @@ static int __devinit fsldma_of_probe(struct platform_device *op, fdev->common.device_control = fsl_dma_device_control; fdev->common.dev = &op->dev; + dma_set_mask(&(op->dev), DMA_BIT_MASK(36)); + dev_set_drvdata(&op->dev, fdev); /*