From: Michael Buesch <mb@bu3sch.de>
To: Alessandro Rubini <rubini@gnudd.com>
Cc: scottwood@freescale.com, bgat@billgatliff.com,
linuxppc-dev@lists.ozlabs.org, Jonathan.Haws@sdl.usu.edu
Subject: Re: Accessing flash directly from User Space [SOLVED]
Date: Fri, 30 Oct 2009 16:24:01 +0100 [thread overview]
Message-ID: <200910301624.03989.mb@bu3sch.de> (raw)
In-Reply-To: <20091030150855.GA15046@mail.gnudd.com>
On Friday 30 October 2009 16:08:55 Alessandro Rubini wrote:
> > asm("eieio; sync");
>
> Hmm...
> : : : "memory"
>
> And, doesn't ";" start a comment in assembly? (no, not on powerpc it seems)
Yes, I think the barrier is wrong.
Please try with
#define mb() __asm__ __volatile__("eieio\n sync\n" : : : "memory")
--
Greetings, Michael.
next prev parent reply other threads:[~2009-10-30 15:24 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-27 19:59 Accessing flash directly from User Space Jonathan Haws
2009-10-27 20:13 ` Bill Gatliff
2009-10-27 20:15 ` Jonathan Haws
2009-10-27 20:30 ` Bill Gatliff
2009-10-27 20:31 ` Jonathan Haws
2009-10-27 22:24 ` Jonathan Haws
2009-10-27 22:32 ` Scott Wood
2009-10-27 22:35 ` Jonathan Haws
2009-10-27 22:42 ` Scott Wood
2009-10-27 22:52 ` Jonathan Haws
2009-10-28 9:56 ` Kenneth Johansson
2009-10-28 14:45 ` Jonathan Haws
2009-10-29 21:36 ` Joerg Albert
2009-10-29 21:39 ` Jonathan Haws
2009-10-29 16:33 ` Scott Wood
2009-10-29 16:48 ` Jonathan Haws
[not found] ` <BB99A6BA28709744BF22A68E6D7EB51F0330D368AA@midas.usurf.usu.edu >
2009-10-27 22:42 ` Alessandro Rubini
2009-10-28 11:24 ` Josh Boyer
2009-10-28 14:38 ` Jonathan Haws
2009-10-28 17:44 ` Accessing flash directly from User Space [SOLVED] Jonathan Haws
2009-10-29 9:00 ` Joakim Tjernlund
2009-10-29 9:15 ` Joakim Tjernlund
2009-10-29 17:01 ` Jonathan Haws
2009-10-29 11:08 ` Kenneth Johansson
2009-10-29 17:02 ` Jonathan Haws
2009-10-29 23:30 ` Scott Wood
2009-10-30 14:50 ` Jonathan Haws
2009-10-30 14:56 ` Michael Buesch
2009-10-30 14:57 ` Jonathan Haws
[not found] ` <BB99A6BA28709744BF22A68E6D7EB51F0330E23124@midas.usurf.usu.edu >
2009-10-30 15:08 ` Alessandro Rubini
2009-10-30 15:24 ` Michael Buesch [this message]
2009-10-30 15:33 ` Jonathan Haws
2009-10-31 13:26 ` Joakim Tjernlund
2009-10-31 16:42 ` Michael Buesch
2009-10-31 20:14 ` Joakim Tjernlund
2009-10-31 20:35 ` Michael Buesch
2009-10-31 22:31 ` Joakim Tjernlund
2009-11-01 10:07 ` Segher Boessenkool
2009-10-30 15:48 ` Micha Nelissen
2009-10-30 16:46 ` Jonathan Haws
2009-10-30 17:49 ` Gabriel Paubert
2009-10-30 15:57 ` Scott Wood
[not found] ` <BB99A6BA28709744BF22A68E6D7EB51F0330D3688B@midas.usurf.usu.edu >
2009-10-27 22:32 ` Accessing flash directly from User Space Alessandro Rubini
2009-10-27 22:33 ` Jonathan Haws
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