From mboxrd@z Thu Jan 1 00:00:00 1970 From: Felipe Balbi Subject: Re: [PATCH 4/5] musb: use system DMA for unaligned buffers on RTL >= 1.8 Date: Thu, 13 May 2010 22:43:11 +0300 Message-ID: <20100513194311.GA19318@gandalf> References: <1273664979-493-1-git-send-email-ajay.gupta@ti.com> <1273664979-493-2-git-send-email-ajay.gupta@ti.com> <1273664979-493-3-git-send-email-ajay.gupta@ti.com> <1273664979-493-4-git-send-email-ajay.gupta@ti.com> <4BEAAA8A.1000003@ru.mvista.com> <19F8576C6E063C45BE387C64729E7394044E405072@dbde02.ent.ti.com> <4BEAC268.1080601@ru.mvista.com> <20100512175543.GD3285@gandalf> <19F8576C6E063C45BE387C64729E7394044E40516A@dbde02.ent.ti.com> Reply-To: me-uiRdBs8odbtmTBlB0Cgj/Q@public.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <19F8576C6E063C45BE387C64729E7394044E40516A-/tLxBxkBPtCIQmiDNMet8wC/G2K4zDHf@public.gmane.org> Sender: linux-usb-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: "Gupta, Ajay Kumar" Cc: "me-uiRdBs8odbtmTBlB0Cgj/Q@public.gmane.org" , Sergei Shtylyov , "linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , "linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" List-Id: linux-omap@vger.kernel.org On Thu, May 13, 2010 at 09:44:11AM +0530, Gupta, Ajay Kumar wrote: > Hi, > > -----Original Message----- > > From: Felipe Balbi [mailto:me-uiRdBs8odbtmTBlB0Cgj/Q@public.gmane.org] > > Sent: Wednesday, May 12, 2010 11:26 PM > > To: Sergei Shtylyov > > Cc: Gupta, Ajay Kumar; linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org; linux- > > omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org > > Subject: Re: [PATCH 4/5] musb: use system DMA for unaligned buffers on RTL > > >= 1.8 > > > > On Wed, May 12, 2010 at 06:59:52PM +0400, Sergei Shtylyov wrote: > > > Better wrap your stuff into #ifdef OMAP, I think... > > > > please don't, better to use the bounce buffer... It would work on > > blackfin, davinci and omap... > > Just working is not enough. We need to think of performance and cpu > loading as well. allocating a bounce buffer doesn't take long and you can still use mentor DMA to transfer the data. -- balbi -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html