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include/linux/dma-debug.h
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/* * Copyright (C) 2008 Advanced Micro Devices, Inc. * * Author: Joerg Roedel <joerg.roedel@amd.com> * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 as published * by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef __DMA_DEBUG_H #define __DMA_DEBUG_H |
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#include <linux/types.h> |
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struct device; |
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struct scatterlist; |
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struct bus_type; |
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#ifdef CONFIG_DMA_API_DEBUG |
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extern void dma_debug_add_bus(struct bus_type *bus); |
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extern void dma_debug_init(u32 num_entries); |
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extern int dma_debug_resize_entries(u32 num_entries); |
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extern void debug_dma_map_page(struct device *dev, struct page *page, size_t offset, size_t size, int direction, dma_addr_t dma_addr, bool map_single); extern void debug_dma_unmap_page(struct device *dev, dma_addr_t addr, size_t size, int direction, bool map_single); |
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extern void debug_dma_map_sg(struct device *dev, struct scatterlist *sg, int nents, int mapped_ents, int direction); extern void debug_dma_unmap_sg(struct device *dev, struct scatterlist *sglist, int nelems, int dir); |
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extern void debug_dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t dma_addr, void *virt); extern void debug_dma_free_coherent(struct device *dev, size_t size, void *virt, dma_addr_t addr); |
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extern void debug_dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, size_t size, int direction); extern void debug_dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle, size_t size, int direction); |
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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); |
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extern void debug_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nelems, int direction); extern void debug_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nelems, int direction); |
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extern void debug_dma_dump_mappings(struct device *dev); |
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#else /* CONFIG_DMA_API_DEBUG */ |
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static inline void dma_debug_add_bus(struct bus_type *bus) |
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{ } |
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static inline void dma_debug_init(u32 num_entries) { } |
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static inline int dma_debug_resize_entries(u32 num_entries) { return 0; } |
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static inline void debug_dma_map_page(struct device *dev, struct page *page, size_t offset, size_t size, int direction, dma_addr_t dma_addr, bool map_single) { } static inline void debug_dma_unmap_page(struct device *dev, dma_addr_t addr, size_t size, int direction, bool map_single) { } |
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static inline void debug_dma_map_sg(struct device *dev, struct scatterlist *sg, int nents, int mapped_ents, int direction) { } static inline void debug_dma_unmap_sg(struct device *dev, struct scatterlist *sglist, int nelems, int dir) { } |
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static inline void debug_dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t dma_addr, void *virt) { } static inline void debug_dma_free_coherent(struct device *dev, size_t size, void *virt, dma_addr_t addr) { } |
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static inline void debug_dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, size_t size, int direction) { } static inline void debug_dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle, size_t size, int direction) { } |
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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) { } |
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static inline void debug_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nelems, int direction) { } static inline void debug_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nelems, int direction) { } |
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static inline void debug_dma_dump_mappings(struct device *dev) { } |
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#endif /* CONFIG_DMA_API_DEBUG */ |
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#endif /* __DMA_DEBUG_H */ |