From: hank peng <pengxihan@gmail.com>
To: linuxppc-dev@ozlabs.org
Subject: mpc8548 does not make use of DMA when doing memory copy?
Date: Mon, 2 Nov 2009 23:40:02 +0800 [thread overview]
Message-ID: <389deec70911020740k13b56bc6kdad3bfaa39916f54@mail.gmail.com> (raw)
Kernel version is 2.6.30 and I have enabled fsl DMA engine during
configuring kernel. After system booted, I have seen only 38 DMA
interrupts, and no increase later when I am doing data transfer
through network.
So I wonder if mpc8548 had made use of DMA engine when doing memcpy,
or maybe if there are other things I haven't noticed?
--
The simplest is not all best but the best is surely the simplest!
next reply other threads:[~2009-11-02 15:40 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-02 15:40 hank peng [this message]
2009-11-02 17:32 ` mpc8548 does not make use of DMA when doing memory copy? Kumar Gala
2009-11-03 0:35 ` hank peng
2009-11-03 8:40 ` Micha Nelissen
2009-11-03 14:38 ` hank peng
2009-11-04 6:25 ` Kumar Gala
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