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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2026-06-21 15:43:21 +02:00
Leon Romanovsky
c8411b1d1e
There are multiple unmapping flows which didn't provide DMA attributes, which limited DMA debug code to compare the mapping and unmapping attributes. Let's fix it. Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Reviewed-by: Samiullah Khawaja <skhawaja@google.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Link: https://lore.kernel.org/r/20260501-dma-attrs-debug-v2-5-8dbac75cd501@nvidia.com
129 lines
3.7 KiB
C
129 lines
3.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (C) 2008 Advanced Micro Devices, Inc.
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*
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* Author: Joerg Roedel <joerg.roedel@amd.com>
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*/
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#ifndef _KERNEL_DMA_DEBUG_H
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#define _KERNEL_DMA_DEBUG_H
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#ifdef CONFIG_DMA_API_DEBUG
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extern void debug_dma_map_phys(struct device *dev, phys_addr_t phys,
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size_t size, int direction, dma_addr_t dma_addr,
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unsigned long attrs);
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extern void debug_dma_unmap_phys(struct device *dev, dma_addr_t addr,
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size_t size, int direction,
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unsigned long attrs);
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extern void debug_dma_map_sg(struct device *dev, struct scatterlist *sg,
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int nents, int mapped_ents, int direction,
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unsigned long attrs);
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extern void debug_dma_unmap_sg(struct device *dev, struct scatterlist *sglist,
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int nelems, int dir, unsigned long attrs);
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extern void debug_dma_alloc_coherent(struct device *dev, size_t size,
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dma_addr_t dma_addr, void *virt,
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unsigned long attrs);
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extern void debug_dma_free_coherent(struct device *dev, size_t size, void *virt,
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dma_addr_t addr, unsigned long attrs);
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extern void debug_dma_sync_single_for_cpu(struct device *dev,
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dma_addr_t dma_handle, size_t size,
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int direction);
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extern void debug_dma_sync_single_for_device(struct device *dev,
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dma_addr_t dma_handle,
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size_t size, int direction);
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extern void debug_dma_sync_sg_for_cpu(struct device *dev,
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struct scatterlist *sg,
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int nelems, int direction);
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extern void debug_dma_sync_sg_for_device(struct device *dev,
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struct scatterlist *sg,
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int nelems, int direction);
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extern void debug_dma_alloc_pages(struct device *dev, struct page *page,
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size_t size, int direction,
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dma_addr_t dma_addr);
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extern void debug_dma_free_pages(struct device *dev, struct page *page,
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size_t size, int direction,
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dma_addr_t dma_addr);
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#else /* CONFIG_DMA_API_DEBUG */
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static inline void debug_dma_map_phys(struct device *dev, phys_addr_t phys,
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size_t size, int direction,
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dma_addr_t dma_addr, unsigned long attrs)
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{
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}
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static inline void debug_dma_unmap_phys(struct device *dev, dma_addr_t addr,
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size_t size, int direction,
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unsigned long attrs)
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{
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}
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static inline void debug_dma_map_sg(struct device *dev, struct scatterlist *sg,
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int nents, int mapped_ents, int direction,
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unsigned long attrs)
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{
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}
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static inline void debug_dma_unmap_sg(struct device *dev,
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struct scatterlist *sglist, int nelems,
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int dir, unsigned long attrs)
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{
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}
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static inline void debug_dma_alloc_coherent(struct device *dev, size_t size,
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dma_addr_t dma_addr, void *virt,
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unsigned long attrs)
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{
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}
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static inline void debug_dma_free_coherent(struct device *dev, size_t size,
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void *virt, dma_addr_t addr,
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unsigned long attrs)
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{
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}
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static inline void debug_dma_sync_single_for_cpu(struct device *dev,
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dma_addr_t dma_handle,
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size_t size, int direction)
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{
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}
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static inline void debug_dma_sync_single_for_device(struct device *dev,
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dma_addr_t dma_handle,
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size_t size, int direction)
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{
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}
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static inline void debug_dma_sync_sg_for_cpu(struct device *dev,
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struct scatterlist *sg,
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int nelems, int direction)
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{
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}
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static inline void debug_dma_sync_sg_for_device(struct device *dev,
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struct scatterlist *sg,
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int nelems, int direction)
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{
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}
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static inline void debug_dma_alloc_pages(struct device *dev, struct page *page,
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size_t size, int direction,
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dma_addr_t dma_addr)
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{
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}
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static inline void debug_dma_free_pages(struct device *dev, struct page *page,
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size_t size, int direction,
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dma_addr_t dma_addr)
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{
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}
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#endif /* CONFIG_DMA_API_DEBUG */
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#endif /* _KERNEL_DMA_DEBUG_H */
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