From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joerg Roedel Subject: [PATCH 12/16] dma-debug: add checks for sync_single_* Date: Fri, 9 Jan 2009 17:19:26 +0100 Message-ID: <1231517970-20288-13-git-send-email-joerg.roedel@amd.com> References: <1231517970-20288-1-git-send-email-joerg.roedel@amd.com> Mime-Version: 1.0 Content-Type: text/plain Cc: mingo@redhat.com, dwmw2@infradead.org, fujita.tomonori@lab.ntt.co.jp, netdev@vger.kernel.org, iommu@lists.linux-foundation.org, Joerg Roedel To: linux-kernel@vger.kernel.org Return-path: Received: from outbound-sin.frontbridge.com ([207.46.51.80]:46152 "EHLO SG2EHSOBE003.bigfish.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752467AbZAIQTs (ORCPT ); Fri, 9 Jan 2009 11:19:48 -0500 In-Reply-To: <1231517970-20288-1-git-send-email-joerg.roedel@amd.com> Sender: netdev-owner@vger.kernel.org List-ID: Impact: add debug callbacks for dma_sync_single_for_* functions Signed-off-by: Joerg Roedel --- include/linux/dma-debug.h | 20 ++++++++++++++++++++ lib/dma-debug.c | 20 ++++++++++++++++++++ 2 files changed, 40 insertions(+), 0 deletions(-) diff --git a/include/linux/dma-debug.h b/include/linux/dma-debug.h index a28a701..f39c2a8 100644 --- a/include/linux/dma-debug.h +++ b/include/linux/dma-debug.h @@ -46,6 +46,14 @@ extern void debug_alloc_coherent(struct device *dev, size_t size, extern void debug_free_coherent(struct device *dev, size_t size, void *virt, dma_addr_t addr); +extern void debug_sync_single_for_cpu(struct device *dev, + dma_addr_t dma_handle, size_t size, + int direction); + +extern void debug_sync_single_for_device(struct device *dev, + dma_addr_t dma_handle, + size_t size, int direction); + #else /* CONFIG_DMA_API_DEBUG */ static inline void dma_debug_init(u32 num_entries) @@ -84,6 +92,18 @@ static inline void debug_free_coherent(struct device *dev, size_t size, { } +static inline void debug_sync_single_for_cpu(struct device *dev, + dma_addr_t dma_handle, + size_t size, int direction) +{ +} + +static inline void debug_sync_single_for_device(struct device *dev, + dma_addr_t dma_handle, + size_t size, int direction) +{ +} + #endif /* CONFIG_DMA_API_DEBUG */ #endif /* __DMA_DEBUG_H */ diff --git a/lib/dma-debug.c b/lib/dma-debug.c index a4a5b0f..a7f2369 100644 --- a/lib/dma-debug.c +++ b/lib/dma-debug.c @@ -649,3 +649,23 @@ void debug_free_coherent(struct device *dev, size_t size, } EXPORT_SYMBOL(debug_free_coherent); +void debug_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, + size_t size, int direction) +{ + if (global_disable) + return; + + check_sync(dev, dma_handle, size, 0, direction, true); +} +EXPORT_SYMBOL(debug_sync_single_for_cpu); + +void debug_sync_single_for_device(struct device *dev, dma_addr_t dma_handle, + size_t size, int direction) +{ + if (global_disable) + return; + + check_sync(dev, dma_handle, size, 0, direction, false); +} +EXPORT_SYMBOL(debug_sync_single_for_device); + -- 1.5.6.4