From: Francois Romieu <romieu@cogenit.fr>
To: Eric Gillespie <viking@flying-brick.caverock.net.nz>
Cc: linux-kernel@vger.kernel.org
Subject: Re: What? Clock Slowdown Again?
Date: Sat, 16 Feb 2002 22:44:16 +0100 [thread overview]
Message-ID: <20020216224416.A32624@fafner.intra.cogenit.fr> (raw)
In-Reply-To: <Pine.LNX.4.21.0108201013170.4109-100000@brick.flying-brick.caverock.net.nz>
In-Reply-To: <Pine.LNX.4.21.0108201013170.4109-100000@brick.flying-brick.caverock.net.nz>; from viking@flying-brick.caverock.net.nz on Sat, Feb 16, 2002 at 09:51:02PM +1300
Eric Gillespie <viking@flying-brick.caverock.net.nz> :
[...]
> Also, what are the plans for replacing the virt_to_bus / bus_to_virt
> functions? The sourcecode basically says to use pci_map functions, but, being
> almost a kernel illiterate (I know how to compile, apply patches, and not much
> else) I don't know how to get started on converting. I thought that
> pci_resource_{start,end,len} may also be needed too. Am I right?
Look at Documentation/DMA-mapping.txt, section "Types of DMA mappings"
Read it again from the start. If you aren't familiar with PCI,
http://ww.google.com/search?hl=en&q=PCI+dual+address+cycle+explanation may
help. Then look at drivers/net/{epic/eepro100/3c59x}.c and grep for the
functions quoted in DMA-mapping.txt. After that, glue all the pieces in
your head.
--
Ueimor
prev parent reply other threads:[~2002-02-16 21:44 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-02-16 8:51 Eric Gillespie
2002-02-16 21:44 ` Francois Romieu [this message]
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=20020216224416.A32624@fafner.intra.cogenit.fr \
--to=romieu@cogenit.fr \
--cc=linux-kernel@vger.kernel.org \
--cc=viking@flying-brick.caverock.net.nz \
/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
all inboxes | Powered by JetHome®