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From: Ashok Babu <ashok3d@gmail.com>
To: linux-omap@vger.kernel.org, linux-arm@vger.kernel.org
Subject: Fwd: Self modifying code in ARM 11 architectures
Date: Tue, 24 May 2011 15:48:35 +0530	[thread overview]
Message-ID: <BANLkTimyju7eEgtCpb_U6s8LNHk-_FGK4Q@mail.gmail.com> (raw)
In-Reply-To: <BANLkTi=mVsYiubqtJO2BmWvExMvUFRg6dg@mail.gmail.com>

Hi All,

I am no success in booting up the ARM1176 processor with the
linux-2.6.32 kernel.
While googling about the ARM Harvard architecture, I came to know that
we have to flush/invalidate the D-Cache and I-Cache
when using the self modifying codes.

So here my questions/doubts :
1) Is'nt it the kernel itself is self modifying code with lots of
function pointers ?
    If yes, how is synchronization b/w d-cache and i-cache handled in
the kernel ?
2) Can this be the reason for the kernel not booting for me ?
    Because If i disable the I-Cache in the config, then the kernel
boots up without any issues.
Any pointers on this will be of great help.

Thanks & Best Regards
Ashok
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  reply	other threads:[~2011-05-24 10:18 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-05-24 10:15 Self modifying code in ARM 11 architectures Ashok Babu
2011-05-24 10:18 ` Ashok Babu [this message]
2011-05-25  7:48   ` Vimal Singh
2011-05-25 11:45     ` Uwe Kleine-König
2011-05-25 16:28 ` Peter Teoh

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