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author | blogic <blogic@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2012-10-05 10:12:53 +0000 |
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committer | blogic <blogic@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2012-10-05 10:12:53 +0000 |
commit | 5c105d9f3fd086aff195d3849dcf847d6b0bd927 (patch) | |
tree | 1229a11f725bfa58aa7c57a76898553bb5f6654a /target/linux/coldfire/patches/017-Add-cpu-dma-sync-function-for-coldfire-platform.patch | |
download | openwrt-5c105d9f3fd086aff195d3849dcf847d6b0bd927.tar.gz openwrt-5c105d9f3fd086aff195d3849dcf847d6b0bd927.zip |
branch Attitude Adjustment
git-svn-id: svn://svn.openwrt.org/openwrt/branches/attitude_adjustment@33625 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/coldfire/patches/017-Add-cpu-dma-sync-function-for-coldfire-platform.patch')
-rw-r--r-- | target/linux/coldfire/patches/017-Add-cpu-dma-sync-function-for-coldfire-platform.patch | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/target/linux/coldfire/patches/017-Add-cpu-dma-sync-function-for-coldfire-platform.patch b/target/linux/coldfire/patches/017-Add-cpu-dma-sync-function-for-coldfire-platform.patch new file mode 100644 index 000000000..6151c97b9 --- /dev/null +++ b/target/linux/coldfire/patches/017-Add-cpu-dma-sync-function-for-coldfire-platform.patch @@ -0,0 +1,68 @@ +From 04491155db32bc1a9c0b367a7cac0f4a9ea9c4d2 Mon Sep 17 00:00:00 2001 +From: Alison Wang <b18965@freescale.com> +Date: Thu, 4 Aug 2011 09:59:43 +0800 +Subject: [PATCH 17/52] Add cpu dma sync function for coldfire platform + +This patch add dma_sync_sg_for_cpu() and dma_sync_single_for_cpu() +for coldfire platform. The previous empty function do not flush the +cache for the ram used for DMA. + +Signed-off-by: Alison Wang <b18965@freescale.com> +--- + arch/m68k/include/asm/dma-mapping.h | 10 ++++++++-- + 1 files changed, 8 insertions(+), 2 deletions(-) + +--- a/arch/m68k/include/asm/dma-mapping.h ++++ b/arch/m68k/include/asm/dma-mapping.h +@@ -21,6 +21,9 @@ extern void *dma_alloc_coherent(struct d + extern void dma_free_coherent(struct device *, size_t, + void *, dma_addr_t); + ++extern void dma_sync_single_for_device(struct device *, dma_addr_t, size_t, ++ enum dma_data_direction); ++ + static inline void *dma_alloc_noncoherent(struct device *dev, size_t size, + dma_addr_t *handle, gfp_t flag) + { +@@ -42,6 +45,7 @@ extern dma_addr_t dma_map_single(struct + static inline void dma_unmap_single(struct device *dev, dma_addr_t addr, + size_t size, enum dma_data_direction dir) + { ++ dma_sync_single_for_device(dev, addr, size, dir); + } + + extern dma_addr_t dma_map_page(struct device *, struct page *, +@@ -50,6 +54,7 @@ extern dma_addr_t dma_map_page(struct de + static inline void dma_unmap_page(struct device *dev, dma_addr_t address, + size_t size, enum dma_data_direction dir) + { ++ dma_sync_single_for_device(dev, address, size, dir); + } + + extern int dma_map_sg(struct device *, struct scatterlist *, int, +@@ -57,10 +62,9 @@ extern int dma_map_sg(struct device *, s + static inline void dma_unmap_sg(struct device *dev, struct scatterlist *sg, + int nhwentries, enum dma_data_direction dir) + { ++ dma_map_sg(dev, sg, nhwentries, dir); + } + +-extern void dma_sync_single_for_device(struct device *, dma_addr_t, size_t, +- enum dma_data_direction); + extern void dma_sync_sg_for_device(struct device *, struct scatterlist *, int, + enum dma_data_direction); + +@@ -75,11 +79,13 @@ static inline void dma_sync_single_range + static inline void dma_sync_single_for_cpu(struct device *dev, dma_addr_t handle, + size_t size, enum dma_data_direction dir) + { ++ dma_sync_single_for_device(dev, handle, size, dir); + } + + static inline void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, + int nents, enum dma_data_direction dir) + { ++ dma_sync_sg_for_device(dev, sg, nents, dir); + } + + static inline void dma_sync_single_range_for_cpu(struct device *dev, |