linux/kernel/dma
Christoph Hellwig 1fbf57d053 dma-direct: re-enable mmap for !CONFIG_MMU
nommu configfs can trivially map the coherent allocations to user space,
as no actual page table setup is required and the kernel and the user
space programs share the same address space.

Fixes: 62fcee9a3b ("dma-mapping: remove CONFIG_ARCH_NO_COHERENT_DMA_MMAP")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: dillon min <dillon.minfei@gmail.com>
Reviewed-by: Vladimir Murzin <vladimir.murzin@arm.com>
Tested-by: dillon min <dillon.minfei@gmail.com>
2020-06-17 09:29:31 +02:00
..
coherent.c dma-coherent: fix integer overflow in the reserved-memory dma allocation 2020-03-16 10:43:02 +01:00
contiguous.c dma-contiguous: fix comment for dma_release_from_contiguous 2020-04-25 13:17:06 +02:00
debug.c dma-debug: make __dma_entry_alloc_check_leak() static 2020-04-20 12:05:18 +02:00
direct.c dma-direct: re-enable mmap for !CONFIG_MMU 2020-06-17 09:29:31 +02:00
dummy.c dma-mapping: factor out dummy DMA ops 2018-12-13 21:06:12 +01:00
Kconfig dma-direct: re-enable mmap for !CONFIG_MMU 2020-06-17 09:29:31 +02:00
Makefile dma-remap: separate DMA atomic pools from direct remap code 2020-04-20 12:08:45 +02:00
mapping.c dma-mapping: Fix dma_pgprot() for unencrypted coherent pages 2020-03-17 11:52:58 +01:00
pool.c dma-pool: fix too large DMA pools on medium memory size systems 2020-06-09 15:25:52 +02:00
remap.c dma-mapping updates for 5.8, part 1 2020-06-06 11:43:23 -07:00
swiotlb.c dma-direct: improve swiotlb error reporting 2020-02-05 18:53:05 +01:00
virt.c dma-mapping: zero memory returned from dma_alloc_* 2018-12-20 08:13:52 +01:00