From: Alessandro Rubini <rubini@gnudd.com>
To: misbah_khan@engineer.com
Cc: linuxppc-embedded@ozlabs.org
Subject: Re: how to allocate 9MB of memory in kernel ?
Date: Wed, 23 Jul 2008 14:47:45 +0200 [thread overview]
Message-ID: <20080723124745.GA20156@mail.gnudd.com> (raw)
In-Reply-To: <18605418.post@talk.nabble.com>
> If i allocate 9BM using vmalloc and remap to user space how should it
> address to the 9MB
> SDRAM contigues address which i need to map for user access ?
Use the nopage method and vmalloc_to_page in it.
I have an example in ftp://gnudd.com/pub/samplecode, in the
smallsample26 package, the module is "smallmmap.c" (I'm sure there are
simlilar examples elsewhere).
/alessandro
next prev parent reply other threads:[~2008-07-23 12:59 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-17 7:26 how to allocate 9MB of memory in kernel ? Misbah khan
2008-07-17 7:51 ` Marco Stornelli
2008-07-17 8:34 ` Misbah khan
2008-07-17 9:04 ` Marco Stornelli
2008-07-17 7:56 ` Arnd Bergmann
2008-07-17 8:19 ` Misbah khan
2008-07-17 8:24 ` Arnd Bergmann
2008-07-18 4:44 ` Misbah khan
2008-07-18 6:50 ` Marco Stornelli
2008-07-18 8:48 ` Misbah khan
2008-07-18 14:57 ` Timur Tabi
2008-07-18 15:39 ` Arnd Bergmann
2008-07-22 5:23 ` Misbah khan
2008-07-22 6:43 ` Marco Stornelli
2008-07-22 9:31 ` Arnd Bergmann
2008-07-22 9:47 ` Marco Stornelli
2008-07-22 13:22 ` Misbah khan
2008-07-22 15:12 ` Arnd Bergmann
2008-07-23 7:30 ` Misbah khan
2008-07-23 12:47 ` Alessandro Rubini [this message]
2008-07-24 8:33 ` Misbah khan
2008-07-24 9:31 ` Arnd Bergmann
2008-07-25 8:43 ` Misbah khan
2008-07-25 8:50 ` Arnd Bergmann
2008-08-02 19:13 ` harihanv
2008-07-17 8:02 ` Sylvain Joyeau
2008-07-17 8:41 ` Misbah khan
[not found] <mailman.2280.1216290829.2883.linuxppc-embedded@ozlabs.org>
2008-07-17 20:15 ` Siva Prasad
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