From: viresh.kumar@st.com (Viresh KUMAR)
To: linux-arm-kernel@lists.infradead.org
Subject: Query dw_dmac driver: All descriptors done, but channel not idle!
Date: Fri, 18 Jun 2010 19:03:43 +0530 [thread overview]
Message-ID: <4C1B75B7.1080104@st.com> (raw)
Hello,
We have Synopsys Designware DMAC Controller on ST SPEAr13xx platform.
When i run dmatest for all 8 channels then i see following error some times.
"dma dma0chan7: BUG: All descriptors done, but channel not idle!"
I saw the code in driver, and i think it looks to be a known issue for this
peripheral, that's why special handling is done in driver.
Can somebody please confirm, if it a known issue or not? Or if there
are some solutions for this problem.
viresh.
WARNING: multiple messages have this Message-ID (diff)
From: Viresh KUMAR <viresh.kumar@st.com>
To: haavard.skinnemoen@atmel.com, Dan Williams <dan.j.williams@intel.com>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"'Shiraz HASHIM'" <shiraz.hashim@st.com>,
Armando VISCONTI <armando.visconti@st.com>
Subject: Query dw_dmac driver: All descriptors done, but channel not idle!
Date: Fri, 18 Jun 2010 19:03:43 +0530 [thread overview]
Message-ID: <4C1B75B7.1080104@st.com> (raw)
Hello,
We have Synopsys Designware DMAC Controller on ST SPEAr13xx platform.
When i run dmatest for all 8 channels then i see following error some times.
"dma dma0chan7: BUG: All descriptors done, but channel not idle!"
I saw the code in driver, and i think it looks to be a known issue for this
peripheral, that's why special handling is done in driver.
Can somebody please confirm, if it a known issue or not? Or if there
are some solutions for this problem.
viresh.
next reply other threads:[~2010-06-18 13:33 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-18 13:33 Viresh KUMAR [this message]
2010-06-18 13:33 ` Query dw_dmac driver: All descriptors done, but channel not idle! Viresh KUMAR
2010-06-18 13:52 ` Haavard Skinnemoen
2010-06-18 13:52 ` Haavard Skinnemoen
2010-06-18 13:56 ` Viresh KUMAR
2010-06-18 13:56 ` Viresh KUMAR
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