From: FUJITA Tomonori Date: Tue, 4 Aug 2009 19:08:27 +0000 (+0000) Subject: powerpc: Handle SWIOTLB mapping error properly X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=4a9a6bfe707cfe5bcb0a20eabe240293a095cd10;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git powerpc: Handle SWIOTLB mapping error properly Signed-off-by: FUJITA Tomonori Signed-off-by: Benjamin Herrenschmidt --- diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h index 91217e4a0bfc..4bd41b4051e3 100644 --- a/arch/powerpc/include/asm/dma-mapping.h +++ b/arch/powerpc/include/asm/dma-mapping.h @@ -143,6 +143,11 @@ static inline void dma_free_coherent(struct device *dev, size_t size, static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr) { + struct dma_map_ops *dma_ops = get_dma_ops(dev); + + if (dma_ops->mapping_error) + return dma_ops->mapping_error(dev, dma_addr); + #ifdef CONFIG_PPC64 return (dma_addr == DMA_ERROR_CODE); #else diff --git a/arch/powerpc/kernel/dma-swiotlb.c b/arch/powerpc/kernel/dma-swiotlb.c index d1143a68d82a..e96cbbd9b449 100644 --- a/arch/powerpc/kernel/dma-swiotlb.c +++ b/arch/powerpc/kernel/dma-swiotlb.c @@ -42,7 +42,8 @@ struct dma_map_ops swiotlb_dma_ops = { .sync_single_range_for_cpu = swiotlb_sync_single_range_for_cpu, .sync_single_range_for_device = swiotlb_sync_single_range_for_device, .sync_sg_for_cpu = swiotlb_sync_sg_for_cpu, - .sync_sg_for_device = swiotlb_sync_sg_for_device + .sync_sg_for_device = swiotlb_sync_sg_for_device, + .mapping_error = swiotlb_dma_mapping_error, }; void pci_dma_dev_setup_swiotlb(struct pci_dev *pdev)