OpenCloudOS-Kernel/kernel/dma
Christoph Hellwig 227a76b647 swiotlb: clear io_tlb_start and io_tlb_end in swiotlb_exit
Otherwise is_swiotlb_buffer will return false positives when
we first initialize a swiotlb buffer, but then free it because
we have an IOMMU available.

Fixes: 55897af630 ("dma-direct: merge swiotlb_dma_ops into the dma_direct code")
Reported-by: Sibren Vasse <sibren@sibrenvasse.nl>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Sibren Vasse <sibren@sibrenvasse.nl>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2019-01-16 09:59:17 -05:00
..
Kconfig dma-mapping: always build the direct mapping code 2018-12-13 21:06:11 +01:00
Makefile dma-mapping: factor out dummy DMA ops 2018-12-13 21:06:12 +01:00
coherent.c dma-mapping: remove a few unused exports 2019-01-04 09:03:17 +01:00
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-mapping: remove a few unused exports 2019-01-04 09:03:17 +01:00
direct.c DMA mapping updates for Linux 4.21 2018-12-28 14:12:21 -08:00
dummy.c dma-mapping: factor out dummy DMA ops 2018-12-13 21:06:12 +01:00
mapping.c dma-mapping: remove dmam_{declare,release}_coherent_memory 2019-01-04 09:03:17 +01:00
remap.c dma-direct: fix DMA_ATTR_NO_KERNEL_MAPPING for remapped allocations 2019-01-05 08:28:29 +01:00
swiotlb.c swiotlb: clear io_tlb_start and io_tlb_end in swiotlb_exit 2019-01-16 09:59:17 -05:00
virt.c dma-mapping: zero memory returned from dma_alloc_* 2018-12-20 08:13:52 +01:00