From: Vinod Koul <vinod.koul@intel.com>
To: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: dmaengine@vger.kernel.org, Mans Rullgard <mans@mansr.com>,
Viresh Kumar <viresh.kumar@linaro.org>,
stable@vger.kernel.org
Subject: Re: [PATCH v1 1/1] dmaengine: dw: disable BLOCK IRQs for non-cyclic xfer
Date: Mon, 15 Feb 2016 22:21:02 +0530 [thread overview]
Message-ID: <20160215165102.GK19598@localhost> (raw)
In-Reply-To: <1455112782-75078-1-git-send-email-andriy.shevchenko@linux.intel.com>
On Wed, Feb 10, 2016 at 03:59:42PM +0200, Andy Shevchenko wrote:
> The commit 2895b2cad6e7 ("dmaengine: dw: fix cyclic transfer callbacks")
> re-enabled BLOCK interrupts with regard to make cyclic transfers work. However,
> this change becomes a regression for non-cyclic transfers as interrupt counters
> under stress test had been grown enormously (approximately per 4-5 bytes in the
> UART loop back test).
>
> Taking into consideration above enable BLOCK interrupts if and only if channel
> is programmed to perform cyclic transfer.
Applied, thanks
--
~Vinod
prev parent reply other threads:[~2016-02-15 16:47 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-10 13:59 [PATCH v1 1/1] dmaengine: dw: disable BLOCK IRQs for non-cyclic xfer Andy Shevchenko
2016-02-11 15:17 ` Måns Rullgård
2016-02-12 6:33 ` Viresh Kumar
2016-02-15 16:51 ` Vinod Koul [this message]
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