From: Timur Tabi <timur@codeaurora.org>
To: Sinan Kaya <okaya@codeaurora.org>, Vinod Koul <vinod.koul@intel.com>
Cc: dmaengine@vger.kernel.org, cov@codeaurora.org, jcm@redhat.com,
Dan Williams <dan.j.williams@intel.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH V2 2/3] dmaselftest: add memcpy selftest support functions
Date: Tue, 3 Nov 2015 08:31:57 -0600 [thread overview]
Message-ID: <5638C55D.50001@codeaurora.org> (raw)
In-Reply-To: <5638359D.9080507@codeaurora.org>
Sinan Kaya wrote:
>
> Almost all DMA engine drivers come with some sort of selftest code
> called from probe. I followed the same design pattern.
As others have said, it appears that's outdated.
Is there a real possibility that the hardware could fail the test
without trashing the system? It seems that if the DMA engine is faulty,
it won't "politely" fail. The whole system will crash or some memory
will get corrupted and you won't know it.
--
Sent by an employee of the Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the
Code Aurora Forum, hosted by The Linux Foundation.
next prev parent reply other threads:[~2015-11-03 14:32 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1446444460-21600-1-git-send-email-okaya@codeaurora.org>
2015-11-02 6:07 ` [PATCH V2 1/3] dma: add Qualcomm Technologies HIDMA management driver Sinan Kaya
2015-11-02 15:57 ` Rob Herring
2015-11-02 16:20 ` Sinan Kaya
2015-11-02 17:26 ` Timur Tabi
2015-11-02 17:42 ` Rob Herring
2015-11-02 17:48 ` Timur Tabi
2015-11-02 18:25 ` Rob Herring
2015-11-02 18:30 ` Timur Tabi
2015-11-05 14:31 ` Rob Herring
2015-11-05 14:43 ` Timur Tabi
2015-11-02 18:49 ` Sinan Kaya
2015-11-02 22:00 ` Arnd Bergmann
2015-11-03 5:18 ` Sinan Kaya
2015-11-03 10:22 ` Andy Shevchenko
2015-11-04 0:47 ` Sinan Kaya
2015-11-02 6:07 ` [PATCH V2 2/3] dmaselftest: add memcpy selftest support functions Sinan Kaya
2015-11-03 4:15 ` Vinod Koul
2015-11-03 4:18 ` Sinan Kaya
2015-11-03 6:30 ` Vinod Koul
2015-11-03 7:44 ` Dan Williams
2015-11-03 8:22 ` Andy Shevchenko
2015-11-03 16:08 ` Vinod Koul
2015-11-05 2:42 ` Sinan Kaya
2015-11-05 12:05 ` Vinod Koul
2015-11-05 16:17 ` Sinan Kaya
2015-11-07 6:23 ` Sinan Kaya
2015-11-08 13:53 ` Vinod Koul
2015-11-13 20:20 ` okaya
2015-11-03 15:51 ` Sinan Kaya
2015-11-03 16:06 ` Vinod Koul
2015-11-03 14:31 ` Timur Tabi [this message]
2015-11-03 16:10 ` Vinod Koul
2015-11-03 16:28 ` Sinan Kaya
2015-11-03 16:46 ` Timur Tabi
2015-11-03 16:57 ` Sinan Kaya
2015-11-03 16:48 ` Timur Tabi
2015-11-02 6:07 ` [PATCH V2 3/3] dma: add Qualcomm Technologies HIDMA channel driver Sinan Kaya
2015-11-03 10:10 ` Andy Shevchenko
2015-11-04 0:07 ` Sinan Kaya
2015-11-04 17:44 ` Andy Shevchenko
2015-11-05 2:22 ` Sinan Kaya
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