linux/kernel/dma
David Rientjes 633d5fce78 dma-direct: always align allocation size in dma_direct_alloc_pages()
dma_alloc_contiguous() does size >> PAGE_SHIFT and set_memory_decrypted()
works at page granularity.  It's necessary to page align the allocation
size in dma_direct_alloc_pages() for consistent behavior.

This also fixes an issue when arch_dma_prep_coherent() is called on an
unaligned allocation size for dma_alloc_need_uncached() when
CONFIG_DMA_DIRECT_REMAP is disabled but CONFIG_ARCH_HAS_DMA_SET_UNCACHED
is enabled.

Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2020-06-17 09:29:38 +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: always align allocation size in dma_direct_alloc_pages() 2020-06-17 09:29:38 +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