Lendacky, Thomas c92a54cfa0 dma-direct: do not include SME mask in the DMA supported check ... The dma_direct_supported() function intends to check the DMA mask against specific values. However, the phys_to_dma() function includes the SME encryption mask, which defeats the intended purpose of the check. This results in drivers that support less than 48-bit DMA (SME encryption mask is bit 47) from being able to set the DMA mask successfully when SME is active, which results in the driver failing to initialize. Change the function used to check the mask from phys_to_dma() to __phys_to_dma() so that the SME encryption mask is not part of the check. Fixes: c1d0af1a1d ("kernel/dma/direct: take DMA offset into account in dma_direct_supported") Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: Christoph Hellwig <hch@lst.de>		2018-12-17 18:02:11 +01:00
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Kconfig	dma-mapping: consolidate the dma mmap implementations	2018-09-20 09:01:16 +02:00
Makefile	dma-mapping: merge direct and noncoherent ops	2018-09-20 09:01:15 +02:00
coherent.c	dma-mapping: move all DMA mapping code to kernel/dma	2018-06-14 08:50:37 +02:00
contiguous.c	dma-mapping: fix panic caused by passing empty cma command line argument	2018-09-20 09:01:08 +02:00
debug.c	dma-debug: Check for drivers mapping invalid addresses in dma_map_single()	2018-10-08 09:44:17 +02:00
direct.c	dma-direct: do not include SME mask in the DMA supported check	2018-12-17 18:02:11 +01:00
mapping.c	dma-mapping: support non-coherent devices in dma_common_get_sgtable	2018-09-20 09:01:17 +02:00
swiotlb.c	swiotlb: Skip cache maintenance on map error	2018-11-21 18:47:58 +01:00
virt.c	dma-mapping: move all DMA mapping code to kernel/dma	2018-06-14 08:50:37 +02:00