From: Christoph Hellwig Date: Wed, 13 Feb 2019 07:01:31 +0000 (+0100) Subject: powerpc/dma: remove get_dma_offset X-Git-Tag: v5.4-rc1~1376^2~123^2~2 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7610fdf5e056ad5764d19f39db49b11608334610;p=platform%2Fkernel%2Flinux-rpi.git powerpc/dma: remove get_dma_offset Just fold the calculation into __phys_to_dma/__dma_to_phys as those are the only places that should know about it. Signed-off-by: Christoph Hellwig Acked-by: Benjamin Herrenschmidt Tested-by: Christian Zigotzky Signed-off-by: Michael Ellerman --- diff --git a/arch/powerpc/include/asm/dma-direct.h b/arch/powerpc/include/asm/dma-direct.h index 92d8aed..a2912b47 100644 --- a/arch/powerpc/include/asm/dma-direct.h +++ b/arch/powerpc/include/asm/dma-direct.h @@ -13,11 +13,15 @@ static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size) static inline dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t paddr) { - return paddr + get_dma_offset(dev); + if (!dev) + return paddr + PCI_DRAM_OFFSET; + return paddr + dev->archdata.dma_offset; } static inline phys_addr_t __dma_to_phys(struct device *dev, dma_addr_t daddr) { - return daddr - get_dma_offset(dev); + if (!dev) + return daddr - PCI_DRAM_OFFSET; + return daddr - dev->archdata.dma_offset; } #endif /* ASM_POWERPC_DMA_DIRECT_H */ diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h index 93e57e2..c70f55d 100644 --- a/arch/powerpc/include/asm/dma-mapping.h +++ b/arch/powerpc/include/asm/dma-mapping.h @@ -43,22 +43,6 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus) return NULL; } -/* - * get_dma_offset() - * - * Get the dma offset on configurations where the dma address can be determined - * from the physical address by looking at a simple offset. Direct dma and - * swiotlb use this function, but it is typically not used by implementations - * with an iommu. - */ -static inline dma_addr_t get_dma_offset(struct device *dev) -{ - if (dev) - return dev->archdata.dma_offset; - - return PCI_DRAM_OFFSET; -} - static inline void set_dma_offset(struct device *dev, dma_addr_t off) { if (dev)