From: jim <jduey@ccc-dcs.com>
To: linuxppc-embedded@lists.linuxppc.org
Subject: PCI and DMA
Date: Wed, 28 Aug 2002 20:58:41 +0000 [thread overview]
Message-ID: <20020829021107.5924F38C2D@server.weathercom.com> (raw)
Hi folks,
I've got a problem doing DMA over the PCI bus. After I've done a DMA write
to the device, the kernel hangs when I do a pci_read_config_byte for that
device. I've determined that when pci_read_config_byte is called, execution
makes it to the call to the read_byte function of the pci_ops structure.
(This function is pointed to by pdev->bus->ops->read_byte.) What I can't
seem to find is the code that is actually doing the read from the device
configuration space. Can somebody point me to it? This is on a 405GP Walnut
board.
Thanks,
Jim
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
reply other threads:[~2002-08-28 20:58 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20020829021107.5924F38C2D@server.weathercom.com \
--to=jduey@ccc-dcs.com \
--cc=linuxppc-embedded@lists.linuxppc.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).