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From: tixy@linaro.org (Jon Medhurst)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 0/2] dma: pl330: Fixes for DMA memcpy
Date: Fri,  7 Nov 2014 18:05:16 +0000	[thread overview]
Message-ID: <1415383518-29327-1-git-send-email-tixy@linaro.org> (raw)

This is a couple of patches I produced when trying to get dmatest to run
with the pl330 driver. The second one is actually a theoretical fix
because the FIFO on the platform I was using is too large for the tests
to hit the limit, but the datasheet says the device can lockup if all
the FIFO entries are exhausted, so it seems like a sensible precaution.

Jon Medhurst (2):
      dma: pl330: Align DMA memcpy operations to MFIFO width
      dma: pl330: Limit MFIFO usage for memcpy to avoid exhausting entries

 drivers/dma/pl330.c | 16 ++++++++++++++--

             reply	other threads:[~2014-11-07 18:05 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-11-07 18:05 Jon Medhurst [this message]
2014-11-07 18:05 ` [PATCH 1/2] dma: pl330: Align DMA memcpy operations to MFIFO width Jon Medhurst
2014-11-07 18:05 ` [PATCH 2/2] dma: pl330: Limit MFIFO usage for memcpy to avoid exhausting entries Jon Medhurst
2014-11-12  9:31 ` [PATCH 0/2] dma: pl330: Fixes for DMA memcpy Vinod Koul
2014-11-13 10:19   ` Jon Medhurst (Tixy)

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