b6e05477c1
Give the basic phys_to_dma() and dma_to_phys() helpers a __-prefix and add the memory encryption mask to the non-prefixed versions. Use the __-prefixed versions directly instead of clearing the mask again in various places. Tested-by: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Joerg Roedel <joro@8bytes.org> Cc: Jon Mason <jdmason@kudzu.us> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Muli Ben-Yehuda <mulix@mulix.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: iommu@lists.linux-foundation.org Link: http://lkml.kernel.org/r/20180319103826.12853-13-hch@lst.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
80 lines
1.7 KiB
C
80 lines
1.7 KiB
C
/*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 2006 Ralf Baechle <ralf@linux-mips.org>
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*
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*
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* Similar to mach-generic/dma-coherence.h except
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* plat_device_is_coherent hard coded to return 1.
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*
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*/
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#ifndef __ASM_MACH_CAVIUM_OCTEON_DMA_COHERENCE_H
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#define __ASM_MACH_CAVIUM_OCTEON_DMA_COHERENCE_H
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#include <linux/bug.h>
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struct device;
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extern void octeon_pci_dma_init(void);
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static inline dma_addr_t plat_map_dma_mem(struct device *dev, void *addr,
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size_t size)
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{
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BUG();
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return 0;
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}
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static inline dma_addr_t plat_map_dma_mem_page(struct device *dev,
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struct page *page)
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{
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BUG();
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return 0;
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}
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static inline unsigned long plat_dma_addr_to_phys(struct device *dev,
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dma_addr_t dma_addr)
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{
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BUG();
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return 0;
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}
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static inline void plat_unmap_dma_mem(struct device *dev, dma_addr_t dma_addr,
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size_t size, enum dma_data_direction direction)
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{
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BUG();
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}
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static inline int plat_dma_supported(struct device *dev, u64 mask)
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{
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BUG();
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return 0;
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}
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static inline int plat_device_is_coherent(struct device *dev)
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{
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return 1;
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}
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static inline void plat_post_dma_flush(struct device *dev)
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{
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}
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static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
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{
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if (!dev->dma_mask)
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return false;
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return addr + size - 1 <= *dev->dma_mask;
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}
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dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t paddr);
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phys_addr_t __dma_to_phys(struct device *dev, dma_addr_t daddr);
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struct dma_map_ops;
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extern const struct dma_map_ops *octeon_pci_dma_map_ops;
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extern char *octeon_swiotlb;
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#endif /* __ASM_MACH_CAVIUM_OCTEON_DMA_COHERENCE_H */
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