From: Stephen Boyd <sboyd@codeaurora.org>
To: Tony Lindgren <tony@atomide.com>
Cc: Daniel Walker <dwalker@codeaurora.org>,
linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org,
Arnd Bergmann <arnd@arndb.de>, Nicolas Pitre <nico@fluxnic.net>,
Greg Kroah-Hartman <gregkh@suse.de>,
Mike Frysinger <vapier@gentoo.org>,
Andrew Morton <akpm@linux-foundation.org>,
Alan Cox <alan@lxorguk.ukuu.org.uk>,
Randy Dunlap <randy.dunlap@oracle.com>,
FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>,
linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH] drivers: char: hvc: add arm JTAG DCC console support
Date: Tue, 07 Dec 2010 11:10:36 -0800 [thread overview]
Message-ID: <4CFE86AC.9010801@codeaurora.org> (raw)
In-Reply-To: <4CF6AE04.6030201@codeaurora.org>
On 12/01/2010 12:20 PM, Stephen Boyd wrote:
> Definitely for TX since it seems like a redundant loop, but I agree RX
> code has changed. Instead of
>
> If RX buffer full
> Poll for RX buffer full
> Read character from RX buffer
>
> we would have
>
> If RX buffer full
> Read character from RX buffer
>
> which doesn't seem all that different assuming the RX buffer doesn't go
> from full to empty between the If and Poll steps. Hopefully Tony knows more.
>
Tony, any thoughts?
--
Sent by an employee of the Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.
next prev parent reply other threads:[~2010-12-07 19:10 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-30 19:25 [PATCH] drivers: char: hvc: add arm JTAG DCC console support Daniel Walker
2010-11-30 19:57 ` Nicolas Pitre
2010-11-30 21:17 ` Arnd Bergmann
2010-12-01 5:30 ` Stephen Boyd
2010-12-01 18:54 ` Daniel Walker
2010-12-01 19:28 ` Greg KH
2010-12-18 5:16 ` [PATCH] hvc_dcc: Simplify assembly for v6 and v7 ARM Stephen Boyd
2010-12-20 17:51 ` Daniel Walker
2010-12-20 18:39 ` Stephen Boyd
2010-12-20 18:46 ` Nicolas Pitre
2010-12-20 20:08 ` [PATCH 0/3] hvc_dcc cleanups and fixes Stephen Boyd
2010-12-20 20:08 ` [PATCH 1/3] hvc_dcc: Fix bad code generation by marking assembly volatile Stephen Boyd
2010-12-20 21:39 ` Nicolas Pitre
2011-01-02 9:00 ` Pavel Machek
2011-01-02 18:49 ` David Brown
2011-01-03 5:50 ` Pavel Machek
2011-01-04 18:49 ` Tony Lindgren
2010-12-20 21:49 ` Arnaud Lacombe
2010-12-20 21:52 ` Stephen Boyd
2010-12-20 22:10 ` Nicolas Pitre
2010-12-20 20:08 ` [PATCH 2/3] hvc_dcc: Simplify put_chars()/get_chars() loops Stephen Boyd
2010-12-20 20:08 ` [PATCH 3/3] hvc_dcc: Simplify assembly for v6 and v7 ARM Stephen Boyd
2010-12-20 21:44 ` Nicolas Pitre
2011-01-04 18:52 ` Tony Lindgren
2011-01-06 1:49 ` [PATCH 0/3] hvc_dcc cleanups and fixes Stephen Boyd
2011-01-06 3:20 ` Greg KH
2011-02-03 22:17 ` Greg KH
2011-02-03 23:19 ` Stephen Boyd
2011-02-03 23:30 ` Greg KH
2011-02-03 23:48 ` [PATCHv2 " Stephen Boyd
2011-02-03 23:48 ` [PATCHv2 1/3] hvc_dcc: Fix bad code generation by marking assembly volatile Stephen Boyd
2011-02-03 23:48 ` [PATCHv2 2/3] hvc_dcc: Simplify put_chars()/get_chars() loops Stephen Boyd
2011-02-03 23:48 ` [PATCHv2 3/3] hvc_dcc: Simplify assembly for v6 and v7 ARM Stephen Boyd
2010-12-01 20:20 ` [PATCH] drivers: char: hvc: add arm JTAG DCC console support Stephen Boyd
2010-12-07 19:10 ` Stephen Boyd [this message]
2011-01-14 19:19 ` Tony Lindgren
2011-01-14 23:49 ` Stephen Boyd
2011-04-07 18:39 ` RONETIX - Asen Dimov
2011-04-07 18:57 ` Mike Frysinger
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