From mboxrd@z Thu Jan 1 00:00:00 1970 From: vinod.koul@intel.com (Vinod Koul) Date: Fri, 9 Dec 2016 12:29:55 +0530 Subject: Tearing down DMA transfer setup after DMA client has finished In-Reply-To: References: <20fc9020-7278-bc2f-2a8d-43aff5cabff8@free.fr> <20161206051222.GQ6408@localhost> <5846B237.8060409@free.fr> <20161207164341.GX6408@localhost> <20161208103921.GC6408@localhost> <91b0d10c-1bc2-c3e1-4088-f4ad9adcd6c0@free.fr> <20161208163755.GH6408@localhost> Message-ID: <20161209065955.GJ6408@localhost> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Thu, Dec 08, 2016 at 04:48:18PM +0000, M?ns Rullg?rd wrote: > Vinod Koul writes: > > > To make it efficient, disregarding your Sbox HW issue, the solution is > > virtual channels. You can delink physical channels and virtual channels. If > > one has SW controlled MUX then a channel can service any client. For few > > controllers request lines are hard wired so they cant use any channel. But > > if you dont have this restriction then driver can queue up many transactions > > from different controllers. > > Have you been paying attention at all? This exactly what the driver > ALREADY DOES. And have you read what the question was? -- ~Vinod