sinitax/cachepc-linux - Fork of AMDESE/linux with modifications for CachePC side-channel attack

	Commit message (Collapse)	Author	Age	Files	Lines
*	dmaengine: PTDMA: support polled mode	Ilya Novikov	2022-04-20	1	-17/+19
\| \| \| \| \| \| \| \| \|	If the DMA_PREP_INTERRUPT flag is not provided, run in polled mode, which significantly improves IOPS: more than twice on chunks < 4K. Signed-off-by: Ilya Novikov <i.m.novikov@yadro.com> Link: https://lore.kernel.org/r/20220413113733.59041-1-i.m.novikov@yadro.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
*	dmaengine: ptdma: Fix the error handling path in pt_core_init()	Christophe JAILLET	2022-02-15	1	-8/+9
\| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \|	In order to free resources correctly in the error handling path of pt_core_init(), 2 goto's have to be switched. Otherwise, some resources will leak and we will try to release things that have not been allocated yet. Also move a dev_err() to a place where it is more meaningful. Fixes: fa5d823b16a9 ("dmaengine: ptdma: Initial driver for the AMD PTDMA") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Acked-by: Sanjay R Mehta <sanju.mehta@amd.com> Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com> Link: https://lore.kernel.org/r/41a963a35173f89c874f5c44df5530dc09fea8da.1644044244.git.christophe.jaillet@wanadoo.fr Signed-off-by: Vinod Koul <vkoul@kernel.org>
*	dmaengine: ptdma: Add debugfs entries for PTDMA	Sanjay R Mehta	2021-08-29	1	-0/+5
\| \| \| \| \| \| \| \| \| \|	Expose data about the configuration and operation of the PTDMA through debugfs entries: device name, capabilities, configuration, statistics. Signed-off-by: Sanjay R Mehta <sanju.mehta@amd.com> Link: https://lore.kernel.org/r/1629208559-51964-4-git-send-email-Sanju.Mehta@amd.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
*	dmaengine: ptdma: register PTDMA controller as a DMA resource	Sanjay R Mehta	2021-08-29	1	-0/+32
\| \| \| \| \| \| \| \| \|	Register ptdma queue to Linux dmaengine framework as general-purpose DMA channels. Signed-off-by: Sanjay R Mehta <sanju.mehta@amd.com> Link: https://lore.kernel.org/r/1629208559-51964-3-git-send-email-Sanju.Mehta@amd.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
*	dmaengine: ptdma: Initial driver for the AMD PTDMA	Sanjay R Mehta	2021-08-29	1	-0/+268
	Add support for AMD PTDMA controller. It performs high-bandwidth memory to memory and IO copy operation. Device commands are managed via a circular queue of 'descriptors', each of which specifies source and destination addresses for copying a single buffer of data. Signed-off-by: Sanjay R Mehta <sanju.mehta@amd.com> Link: https://lore.kernel.org/r/1629208559-51964-2-git-send-email-Sanju.Mehta@amd.com Signed-off-by: Vinod Koul <vkoul@kernel.org>