From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoph Hellwig Subject: [PATCH 06/15] dma-mapping: simplify the dma_sync_single_range_for_{cpu, device} implementation Date: Fri, 7 Dec 2018 11:07:11 -0800 Message-ID: <20181207190720.18517-7-hch@lst.de> References: <20181207190720.18517-1-hch@lst.de> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20181207190720.18517-1-hch-jcswGhMUV9g@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org To: iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, Linus Torvalds , Jesper Dangaard Brouer Cc: Fenghua Yu , =?UTF-8?q?Toke=20H=C3=B8iland-J=C3=B8rgensen?= , linux-ia64-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Konrad Rzeszutek Wilk , linux-pci-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Ilias Apalodimas , x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Keith Busch , Tony Luck , Robin Murphy , Jonathan Derrick , Tariq Toukan List-Id: iommu@lists.linux-foundation.org We can just call the regular calls after adding offset the the address instead of reimplementing them. Signed-off-by: Christoph Hellwig --- include/linux/dma-debug.h | 27 ------------------------ include/linux/dma-mapping.h | 34 +++++++++--------------------- kernel/dma/debug.c | 42 ------------------------------------- 3 files changed, 10 insertions(+), 93 deletions(-) diff --git a/include/linux/dma-debug.h b/include/linux/dma-debug.h index 30213adbb6b9..c85e097a984c 100644 --- a/include/linux/dma-debug.h +++ b/include/linux/dma-debug.h @@ -72,17 +72,6 @@ extern void debug_dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle, size_t size, int direction); -extern void debug_dma_sync_single_range_for_cpu(struct device *dev, - dma_addr_t dma_handle, - unsigned long offset, - size_t size, - int direction); - -extern void debug_dma_sync_single_range_for_device(struct device *dev, - dma_addr_t dma_handle, - unsigned long offset, - size_t size, int direction); - extern void debug_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nelems, int direction); @@ -174,22 +163,6 @@ static inline void debug_dma_sync_single_for_device(struct device *dev, { } -static inline void debug_dma_sync_single_range_for_cpu(struct device *dev, - dma_addr_t dma_handle, - unsigned long offset, - size_t size, - int direction) -{ -} - -static inline void debug_dma_sync_single_range_for_device(struct device *dev, - dma_addr_t dma_handle, - unsigned long offset, - size_t size, - int direction) -{ -} - static inline void debug_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nelems, int direction) diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h index 7799c2b27849..8916499d2805 100644 --- a/include/linux/dma-mapping.h +++ b/include/linux/dma-mapping.h @@ -360,6 +360,13 @@ static inline void dma_sync_single_for_cpu(struct device *dev, dma_addr_t addr, debug_dma_sync_single_for_cpu(dev, addr, size, dir); } +static inline void dma_sync_single_range_for_cpu(struct device *dev, + dma_addr_t addr, unsigned long offset, size_t size, + enum dma_data_direction dir) +{ + return dma_sync_single_for_cpu(dev, addr + offset, size, dir); +} + static inline void dma_sync_single_for_device(struct device *dev, dma_addr_t addr, size_t size, enum dma_data_direction dir) @@ -372,32 +379,11 @@ static inline void dma_sync_single_for_device(struct device *dev, debug_dma_sync_single_for_device(dev, addr, size, dir); } -static inline void dma_sync_single_range_for_cpu(struct device *dev, - dma_addr_t addr, - unsigned long offset, - size_t size, - enum dma_data_direction dir) -{ - const struct dma_map_ops *ops = get_dma_ops(dev); - - BUG_ON(!valid_dma_direction(dir)); - if (ops->sync_single_for_cpu) - ops->sync_single_for_cpu(dev, addr + offset, size, dir); - debug_dma_sync_single_range_for_cpu(dev, addr, offset, size, dir); -} - static inline void dma_sync_single_range_for_device(struct device *dev, - dma_addr_t addr, - unsigned long offset, - size_t size, - enum dma_data_direction dir) + dma_addr_t addr, unsigned long offset, size_t size, + enum dma_data_direction dir) { - const struct dma_map_ops *ops = get_dma_ops(dev); - - BUG_ON(!valid_dma_direction(dir)); - if (ops->sync_single_for_device) - ops->sync_single_for_device(dev, addr + offset, size, dir); - debug_dma_sync_single_range_for_device(dev, addr, offset, size, dir); + return dma_sync_single_for_device(dev, addr + offset, size, dir); } static inline void diff --git a/kernel/dma/debug.c b/kernel/dma/debug.c index 231ca4628062..3214833b47e2 100644 --- a/kernel/dma/debug.c +++ b/kernel/dma/debug.c @@ -1662,48 +1662,6 @@ void debug_dma_sync_single_for_device(struct device *dev, } EXPORT_SYMBOL(debug_dma_sync_single_for_device); -void debug_dma_sync_single_range_for_cpu(struct device *dev, - dma_addr_t dma_handle, - unsigned long offset, size_t size, - int direction) -{ - struct dma_debug_entry ref; - - if (unlikely(dma_debug_disabled())) - return; - - ref.type = dma_debug_single; - ref.dev = dev; - ref.dev_addr = dma_handle; - ref.size = offset + size; - ref.direction = direction; - ref.sg_call_ents = 0; - - check_sync(dev, &ref, true); -} -EXPORT_SYMBOL(debug_dma_sync_single_range_for_cpu); - -void debug_dma_sync_single_range_for_device(struct device *dev, - dma_addr_t dma_handle, - unsigned long offset, - size_t size, int direction) -{ - struct dma_debug_entry ref; - - if (unlikely(dma_debug_disabled())) - return; - - ref.type = dma_debug_single; - ref.dev = dev; - ref.dev_addr = dma_handle; - ref.size = offset + size; - ref.direction = direction; - ref.sg_call_ents = 0; - - check_sync(dev, &ref, false); -} -EXPORT_SYMBOL(debug_dma_sync_single_range_for_device); - void debug_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nelems, int direction) { -- 2.19.1