From: Dave Jiang Date: Thu, 28 Aug 2014 20:53:02 +0000 (-0700) Subject: ntb: Add alignment check to meet hardware requirement X-Git-Tag: fixes-for-v3.18-merge-window~125^2 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3cc5ba1938eea0de372a41d1687c8030049c5e8f;p=pandora-kernel.git ntb: Add alignment check to meet hardware requirement The NTB translate register must have the value to be BAR size aligned. This alignment check make sure that the DMA memory allocated has the proper alignment. Another requirement for NTB to function properly with memory window BAR size greater or equal to 4M is to use the CMA feature in 3.16 kernel with the appropriate CONFIG_CMA_ALIGNMENT and CONFIG_CMA_SIZE_MBYTES set. Signed-off-by: Dave Jiang Signed-off-by: Jon Mason --- Reading git-diff-tree failed