All of lore.kernel.org
 help / color / mirror / Atom feed
From: greg@kroah.com (Greg KH)
To: kernelnewbies@lists.kernelnewbies.org
Subject: UIO Devices and user processes
Date: Tue, 6 Oct 2015 14:57:34 +0100	[thread overview]
Message-ID: <20151006135734.GA14218@kroah.com> (raw)
In-Reply-To: <CAK7rcp_9CxqsEHhTW6Xjyp38ir5KbeRPMYuPQoPYGcrerVWLvQ@mail.gmail.com>

On Tue, Oct 06, 2015 at 09:26:23AM -0400, Kenneth Adam Miller wrote:
> No, I didn't try it. I just wanted to ask before I got started. Thanks that
> answers everything.
> 
> Any body know about the issue of assigning a process a region of physical
> memory to use for it's malloc and free? I'd like to just have the process call
> through to a UIO driver with an ioctl, and then once that's done it gets all
> it's memory from a specific region.

UIO drivers do not support ioctl, why would you need/want that?  What's
wrong with just using the correct mmap/munmap logic that UIO userspace
drivers use today?

thanks,

greg k-h

  reply	other threads:[~2015-10-06 13:57 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-10-05 23:07 UIO Devices and user processes Kenneth Adam Miller
2015-10-06  5:21 ` Greg KH
2015-10-06 13:26   ` Kenneth Adam Miller
2015-10-06 13:57     ` Greg KH [this message]
2015-10-06 14:03       ` Kenneth Adam Miller
2015-10-06 13:58     ` Yann Droneaud
2015-10-06 14:13       ` Kenneth Adam Miller
2015-10-06 14:32         ` Yann Droneaud
2015-10-06 14:41           ` Kenneth Adam Miller
2015-10-06 14:46             ` Kenneth Adam Miller
2015-10-06 15:04               ` Yann Droneaud
2015-10-06 15:10                 ` Kenneth Adam Miller
2015-10-07 17:02               ` Greg KH
2015-10-07 18:10                 ` Kenneth Adam Miller

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=20151006135734.GA14218@kroah.com \
    --to=greg@kroah.com \
    --cc=kernelnewbies@lists.kernelnewbies.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.