From patchwork Fri Jan 9 16:19:28 2009 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Joerg Roedel X-Patchwork-Id: 17554 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.176.167]) by ozlabs.org (Postfix) with ESMTP id 6AED7DE7DE for ; Sat, 10 Jan 2009 03:35:23 +1100 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753543AbZAIQfE (ORCPT ); Fri, 9 Jan 2009 11:35:04 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753481AbZAIQfD (ORCPT ); Fri, 9 Jan 2009 11:35:03 -0500 Received: from tx2ehsobe004.messaging.microsoft.com ([65.55.88.14]:33624 "EHLO TX2EHSOBE008.bigfish.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753358AbZAIQe7 (ORCPT ); Fri, 9 Jan 2009 11:34:59 -0500 Received: from mail113-tx2-R.bigfish.com (10.9.14.249) by TX2EHSOBE008.bigfish.com (10.9.40.28) with Microsoft SMTP Server id 8.1.291.1; 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Fri, 9 Jan 2009 08:19:38 -0800 Received: from SF30EXMB1.amd.com ([172.20.6.49]) by SSVLEXMB1.amd.com with Microsoft SMTPSVC(6.0.3790.3959); Fri, 9 Jan 2009 08:19:37 -0800 Received: from lemmy.localdomain ([165.204.85.93]) by SF30EXMB1.amd.com with Microsoft SMTPSVC(6.0.3790.3959); Fri, 9 Jan 2009 17:19:30 +0100 Received: by lemmy.localdomain (Postfix, from userid 41430) id C655453C68; Fri, 9 Jan 2009 17:19:30 +0100 (CET) From: Joerg Roedel To: linux-kernel@vger.kernel.org CC: mingo@redhat.com, dwmw2@infradead.org, fujita.tomonori@lab.ntt.co.jp, netdev@vger.kernel.org, iommu@lists.linux-foundation.org, Joerg Roedel Subject: [PATCH 14/16] dma-debug: add checks for sync_single_sg_* Date: Fri, 9 Jan 2009 17:19:28 +0100 Message-ID: <1231517970-20288-15-git-send-email-joerg.roedel@amd.com> X-Mailer: git-send-email 1.5.6.4 In-Reply-To: <1231517970-20288-1-git-send-email-joerg.roedel@amd.com> References: <1231517970-20288-1-git-send-email-joerg.roedel@amd.com> X-OriginalArrivalTime: 09 Jan 2009 16:19:30.0873 (UTC) FILETIME=[0D20CA90:01C97276] MIME-Version: 1.0 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Impact: add debug callbacks for dma_sync_sg_* functions Signed-off-by: Joerg Roedel --- include/linux/dma-debug.h | 19 +++++++++++++++++++ lib/dma-debug.c | 32 ++++++++++++++++++++++++++++++++ 2 files changed, 51 insertions(+), 0 deletions(-) diff --git a/include/linux/dma-debug.h b/include/linux/dma-debug.h index b9c221a..bdba8c8 100644 --- a/include/linux/dma-debug.h +++ b/include/linux/dma-debug.h @@ -64,6 +64,13 @@ extern void debug_sync_single_range_for_device(struct device *dev, unsigned long offset, size_t size, int direction); +extern void debug_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, + int nelems, int direction); + +extern void debug_sync_sg_for_device(struct device *dev, + struct scatterlist *sg, + int nelems, int direction); + #else /* CONFIG_DMA_API_DEBUG */ static inline void dma_debug_init(u32 num_entries) @@ -130,6 +137,18 @@ static inline void debug_sync_single_range_for_device(struct device *dev, { } +static inline void debug_sync_sg_for_cpu(struct device *dev, + struct scatterlist *sg, + int nelems, int direction) +{ +} + +static inline void debug_sync_sg_for_device(struct device *dev, + struct scatterlist *sg, + int nelems, int direction) +{ +} + #endif /* CONFIG_DMA_API_DEBUG */ #endif /* __DMA_DEBUG_H */ diff --git a/lib/dma-debug.c b/lib/dma-debug.c index 6f73bed..e40c88c 100644 --- a/lib/dma-debug.c +++ b/lib/dma-debug.c @@ -692,3 +692,35 @@ void debug_sync_single_range_for_device(struct device *dev, } EXPORT_SYMBOL(debug_sync_single_range_for_device); +void debug_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, + int nelems, int direction) +{ + struct scatterlist *s; + int i; + + if (global_disable) + return; + + for_each_sg(sg, s, nelems, i) { + check_sync(dev, s->dma_address, s->dma_length, 0, + direction, true); + } +} +EXPORT_SYMBOL(debug_sync_sg_for_cpu); + +void debug_sync_sg_for_device(struct device *dev, struct scatterlist *sg, + int nelems, int direction) +{ + struct scatterlist *s; + int i; + + if (global_disable) + return; + + for_each_sg(sg, s, nelems, i) { + check_sync(dev, s->dma_address, s->dma_length, 0, + direction, false); + } +} +EXPORT_SYMBOL(debug_sync_sg_for_device); +