Messages in this thread Patch in this message | | | From | Joerg Roedel <> | Subject | [PATCH 14/16] dma-debug: add checks for sync_single_sg_* | Date | Fri, 9 Jan 2009 17:19:28 +0100 |
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Impact: add debug callbacks for dma_sync_sg_* functions
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> --- 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); + -- 1.5.6.4
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