From: Michal Simek <monstr@monstr.eu>
Date: Tue, 22 Jun 2010 13:25:24 +0000 (+0200)
Subject: microblaze: Simplify _debug_exception function
X-Git-Tag: v2.6.36-rc1~560^2~20
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=06b2864038517905752bdacd95f1f265ef780f3b;p=pandora-kernel.git

microblaze: Simplify _debug_exception function

Keep together all arguments for send_sig function.
Move returning address to delay slot which is executed.
Remove additional send_sig loading. I am using IMM part of
rtbd instruction with r0.

old solution:
addik r11, r0, send_sig
rtbd r11, 0
nop

new solution:
rtbd r0, send_sig
nop

There is one instruction saving.

Signed-off-by: Michal Simek <monstr@monstr.eu>
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