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authorSven Peter <sven@svenpeter.dev>2021-10-19 18:22:53 +0200
committerJoerg Roedel <jroedel@suse.de>2021-10-27 10:08:17 +0200
commit5a009fc1364170b240a4d351b345e69bb3728b3e (patch)
treed93938cfd52380031fc517f08e010ac625a3cf13 /drivers/xen
parent260aecd643fc129c1771cefdd2aaaedf0485fa59 (diff)
iommu/dart: Initialize DART_STREAMS_ENABLE
DART has an additional global register to control which streams are isolated. This register is a bit redundant since DART_TCR can already be used to control isolation and is usually initialized to DART_STREAM_ALL by the time we get control. Some DARTs (namely the one used for the audio controller) however have some streams disabled initially. Make sure those work by initializing DART_STREAMS_ENABLE during reset. Reported-by: Martin PoviĊĦer <povik@protonmail.com> Signed-off-by: Sven Peter <sven@svenpeter.dev> Reviewed-by: Hector Martin <marcan@marcan.st> Link: https://lore.kernel.org/r/20211019162253.45919-1-sven@svenpeter.dev Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/xen')
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