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Commit 9a8de639 authored by Dan Williams's avatar Dan Williams
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async_tx: remove HIGHMEM64G restriction 



This restriction prevented ASYNC_TX_DMA from being enabled on platform
configurations where DMA address conversion could not be performed in
place on the stack.  Since commit 04ce9ab3 ("async_xor: permit callers
to pass in a 'dma/page scribble' region") the async_tx api now either
uses a caller provided 'scribble' buffer, or performs the conversion in
place when sizeof(dma_addr_t) <= sizeof(struct page *).

Signed-off-by: default avatarDan Williams <dan.j.williams@intel.com>
parent d8902adc

drivers/dma/Kconfig

+1 −1
Original line number Diff line number Diff line
@@ -128,7 +128,7 @@ config NET_DMA 


config ASYNC_TX_DMA

	bool "Async_tx: Offload support for the async_tx api"

	depends on DMA_ENGINE && !HIGHMEM64G

	depends on DMA_ENGINE

	help

	  This allows the async_tx api to take advantage of offload engines for

	  memcpy, memset, xor, and raid6 p+q operations.  If your platform has