Christoph Hellwig 5f3b133a23 dma-mapping: add a dma_need_unmap helper ...

Add helper that allows a driver to skip calling dma_unmap_*
if the DMA layer can guarantee that they are no-nops.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>

2025-05-06 08:36:53 +02:00

..

coherent.c

dma-mapping: save base/size instead of pointer to shared DMA pool

2024-11-14 10:45:09 +01:00

contiguous.c

mm/cma: drop CONFIG_CMA_DEBUG

2024-02-22 10:24:53 -08:00

debug.c

dma-debug: fix physical address calculation for struct dma_debug_entry

2024-11-28 10:19:16 +01:00

debug.h

dma-debug: teach add_dma_entry() about DMA_ATTR_SKIP_CPU_SYNC

2021-10-18 12:46:45 +02:00

direct.c

dma-mapping: move the PCI P2PDMA mapping helpers to pci-p2pdma.h

2025-05-06 08:36:53 +02:00

direct.h

swiotlb: reduce swiotlb pool lookups

2024-07-10 07:59:03 +02:00

dummy.c

dma-mapping: call ->unmap_page and ->unmap_sg unconditionally

2024-08-22 06:18:11 +02:00

Kconfig

dma-debug: remove DMA_API_DEBUG_SG

2024-10-29 08:53:37 +01:00

Makefile

dma-mapping: clearly mark DMA ops as an architecture feature

2024-09-04 07:08:51 +03:00

map_benchmark.c

dma-mapping: benchmark: Don't starve others when doing the test

2024-07-09 07:48:32 +02:00

mapping.c

dma-mapping: add a dma_need_unmap helper

2025-05-06 08:36:53 +02:00

ops_helpers.c

dma-mapping: use IOMMU DMA calls for common alloc/free page calls

2024-09-05 14:29:42 +03:00

pool.c

dma-mapping: replace zone_dma_bits by zone_dma_limit

2024-08-22 06:18:00 +02:00

remap.c

dma-mapping: use bit masking to check VM_DMA_COHERENT

2024-08-22 06:15:35 +02:00

swiotlb.c

dma-mapping: replace zone_dma_bits by zone_dma_limit

2024-08-22 06:18:00 +02:00