From: Felipe Balbi <me-uiRdBs8odbtmTBlB0Cgj/Q@public.gmane.org>
To: "Gupta, Ajay Kumar" <ajay.gupta-l0cyMroinI0@public.gmane.org>
Cc: "me-uiRdBs8odbtmTBlB0Cgj/Q@public.gmane.org"
<me-uiRdBs8odbtmTBlB0Cgj/Q@public.gmane.org>,
Sergei Shtylyov
<sshtylyov-Igf4POYTYCDQT0dZR+AlfA@public.gmane.org>,
"linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
"linux-omap-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
Date: Thu, 13 May 2010 22:43:11 +0300 [thread overview]
Message-ID: <20100513194311.GA19318@gandalf> (raw)
In-Reply-To: <19F8576C6E063C45BE387C64729E7394044E40516A-/tLxBxkBPtCIQmiDNMet8wC/G2K4zDHf@public.gmane.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
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next prev parent reply other threads:[~2010-05-13 19:43 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-12 11:49 [PATCH 1/5] musb: save OTG base physical address Ajay Kumar Gupta
2010-05-12 11:49 ` [PATCH 2/5] musb: use system DMA to fix Inventra DMA issue on RTL-1.4 Ajay Kumar Gupta
[not found] ` <1273664979-493-2-git-send-email-ajay.gupta-l0cyMroinI0@public.gmane.org>
2010-05-12 11:49 ` [PATCH 3/5] musb: add function to check if Inventra DMA used Ajay Kumar Gupta
[not found] ` <1273664979-493-3-git-send-email-ajay.gupta-l0cyMroinI0@public.gmane.org>
2010-05-12 11:49 ` [PATCH 4/5] musb: use system DMA for unaligned buffers on RTL >= 1.8 Ajay Kumar Gupta
[not found] ` <1273664979-493-4-git-send-email-ajay.gupta-l0cyMroinI0@public.gmane.org>
2010-05-12 11:49 ` [PATCH 5/5] musb: dma: use optimal transfer element for sdma Ajay Kumar Gupta
2010-05-12 13:18 ` [PATCH 4/5] musb: use system DMA for unaligned buffers on RTL >= 1.8 Sergei Shtylyov
2010-05-12 13:55 ` Gupta, Ajay Kumar
2010-05-12 14:59 ` Sergei Shtylyov
[not found] ` <4BEAC268.1080601-hkdhdckH98+B+jHODAdFcQ@public.gmane.org>
2010-05-12 17:55 ` Felipe Balbi
2010-05-13 4:14 ` Gupta, Ajay Kumar
[not found] ` <19F8576C6E063C45BE387C64729E7394044E40516A-/tLxBxkBPtCIQmiDNMet8wC/G2K4zDHf@public.gmane.org>
2010-05-13 19:43 ` Felipe Balbi [this message]
2010-05-14 4:39 ` Gupta, Ajay Kumar
2010-05-12 17:54 ` Felipe Balbi
2010-05-13 4:13 ` Gupta, Ajay Kumar
[not found] ` <19F8576C6E063C45BE387C64729E7394044E405169-/tLxBxkBPtCIQmiDNMet8wC/G2K4zDHf@public.gmane.org>
2010-05-14 11:06 ` Felipe Balbi
2010-05-14 11:39 ` Gupta, Ajay Kumar
2010-05-12 17:52 ` [PATCH 3/5] musb: add function to check if Inventra DMA used Felipe Balbi
2010-05-12 17:51 ` [PATCH 2/5] musb: use system DMA to fix Inventra DMA issue on RTL-1.4 Felipe Balbi
2010-05-12 17:56 ` Gadiyar, Anand
[not found] ` <5A47E75E594F054BAF48C5E4FC4B92AB03216237DA-/tLxBxkBPtCIQmiDNMet8wC/G2K4zDHf@public.gmane.org>
2010-05-13 4:22 ` Gupta, Ajay Kumar
2010-05-13 8:58 ` Kalliguddi, Hema
2010-05-13 10:10 ` Gupta, Ajay Kumar
2010-05-13 11:57 ` Kalliguddi, Hema
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