From mboxrd@z Thu Jan 1 00:00:00 1970 From: clabbe.montjoie@gmail.com (LABBE Corentin) Date: Wed, 9 Mar 2016 11:08:53 +0100 Subject: [linux-sunxi] Re: [PATCH] dma: sun4i: expose block size and wait cycle configuration to DMA users In-Reply-To: <20160308094625.539646f8@bbrezillon> References: <1457344771-12946-1-git-send-email-boris.brezillon@free-electrons.com> <20160307145429.GG11154@localhost> <20160307160857.577bb04d@bbrezillon> <20160307203024.GD8418@lukather> <20160308025547.GI11154@localhost> <20160308075131.GE8418@lukather> <20160308094625.539646f8@bbrezillon> Message-ID: <20160309100853.GA12312@Red> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org > > > > It doesn't really makes sense to us, but it does have a significant > > impact on the throughput. > > I wouldn't say significant impact, but tweaking those parameters has > some impact on the performances, and since it's not that complicated to > implement, I thought it was worth a try, but maybe I'm wrong. > Hello I am working on adding DMA on the crypto driver sun4i-ss and I confirm that tweaking those parameter can increase speed. Regards LABBE Corentin