From: Timur Tabi <timur.tabi@ammasso.com>
To: Gerd Knorr <kraxel@suse.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Will __pa(vmalloc()) ever work?
Date: Tue, 31 May 2005 13:59:53 -0500 [thread overview]
Message-ID: <429CB429.8090008@ammasso.com> (raw)
In-Reply-To: <20050531161345.GB24106@bytesex>
Gerd Knorr wrote:
> Can you fix that? If so, try that. Would be the best.
No, I cannot. The memory is passed to my driver from some other driver that I do not
control.
> I think you can't. What is "anywhere else"? Does that include
> userspace addresses?
No, but it might include the stack.
> Not sure how portable that is, but comparing the vaddr against
> the vmalloc address space could work. There are macros for
> that, VMALLOC_START & VMALLOC_END IIRC.
Thanks, I'll try that.
I still haven't gotten an answer to my question about whether pgd/pud/pmd/pte_offset will
obtain the physical address for a kmalloc'd buffer.
--
Timur Tabi
Staff Software Engineer
timur.tabi@ammasso.com
One thing a Southern boy will never say is,
"I don't think duct tape will fix it."
-- Ed Smylie, NASA engineer for Apollo 13
next prev parent reply other threads:[~2005-05-31 19:04 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-05-27 19:26 Will __pa(vmalloc()) ever work? Timur Tabi
2005-05-27 19:29 ` Christoph Hellwig
2005-05-27 19:54 ` Timur Tabi
2005-05-27 20:31 ` Arnd Bergmann
2005-05-28 16:16 ` Russell King
2005-05-30 9:38 ` Gerd Knorr
2005-05-31 15:51 ` Timur Tabi
2005-05-31 16:13 ` Gerd Knorr
2005-05-31 18:59 ` Timur Tabi [this message]
2005-05-31 20:01 ` Russell King
2005-05-31 20:44 ` Brian Gerst
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=429CB429.8090008@ammasso.com \
--to=timur.tabi@ammasso.com \
--cc=kraxel@suse.de \
--cc=linux-kernel@vger.kernel.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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.