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From: Ashok Babu <ashok3d@gmail.com>
To: linux-omap@vger.kernel.org, Kernelnewbies@kernelnewbies.org
Subject: Self modifying code in ARM 11 architectures
Date: Tue, 24 May 2011 15:45:41 +0530	[thread overview]
Message-ID: <BANLkTi=mVsYiubqtJO2BmWvExMvUFRg6dg@mail.gmail.com> (raw)


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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 10:15 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-05-24 10:15 Ashok Babu [this message]
2011-05-24 10:18 ` Fwd: Self modifying code in ARM 11 architectures Ashok Babu
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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