mapping.c (7c2645a2a30a45d3dc4c98b315a51be44ec69a67) mapping.c (159bf19270e80b5bc4b13aa88072dcb390b4d297)
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * arch-independent dma-mapping routines
4 *
5 * Copyright (c) 2006 SUSE Linux Products GmbH
6 * Copyright (c) 2006 Tejun Heo <teheo@suse.de>
7 */
8#include <linux/memblock.h> /* for max_pfn */

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718 if (!ops)
719 return dma_direct_supported(dev, mask);
720 if (!ops->dma_supported)
721 return 1;
722 return ops->dma_supported(dev, mask);
723}
724EXPORT_SYMBOL(dma_supported);
725
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * arch-independent dma-mapping routines
4 *
5 * Copyright (c) 2006 SUSE Linux Products GmbH
6 * Copyright (c) 2006 Tejun Heo <teheo@suse.de>
7 */
8#include <linux/memblock.h> /* for max_pfn */

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718 if (!ops)
719 return dma_direct_supported(dev, mask);
720 if (!ops->dma_supported)
721 return 1;
722 return ops->dma_supported(dev, mask);
723}
724EXPORT_SYMBOL(dma_supported);
725
726bool dma_pci_p2pdma_supported(struct device *dev)
727{
728 const struct dma_map_ops *ops = get_dma_ops(dev);
729
730 /* if ops is not set, dma direct will be used which supports P2PDMA */
731 if (!ops)
732 return true;
733
734 /*
735 * Note: dma_ops_bypass is not checked here because P2PDMA should
736 * not be used with dma mapping ops that do not have support even
737 * if the specific device is bypassing them.
738 */
739
740 return ops->flags & DMA_F_PCI_P2PDMA_SUPPORTED;
741}
742EXPORT_SYMBOL_GPL(dma_pci_p2pdma_supported);
743
726#ifdef CONFIG_ARCH_HAS_DMA_SET_MASK
727void arch_dma_set_mask(struct device *dev, u64 mask);
728#else
729#define arch_dma_set_mask(dev, mask) do { } while (0)
730#endif
731
732int dma_set_mask(struct device *dev, u64 mask)
733{

--- 77 unchanged lines hidden --- 		744#ifdef CONFIG_ARCH_HAS_DMA_SET_MASK
745void arch_dma_set_mask(struct device *dev, u64 mask);
746#else
747#define arch_dma_set_mask(dev, mask) do { } while (0)
748#endif
749
750int dma_set_mask(struct device *dev, u64 mask)
751{

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