patch for ia64 oprofile support for 2.5.67 kernel

[Will C. <wc...@re...>]

I started with the most recent 2.5 kernel for ia64 I could find, the 
stock 2.5.67 kernel from kernel.org with the  linuxia64.org patch 
(linux-2.5.67-ia64-030416.diff.bz2). Attached is a patch that provides 
oprofile kernel support that works oprofile 0.5.2. It is built on top of 
the perfmon support. For the oprofile to use the performance monitoring 
hardware CONFIG_PERFMON also needs to be enabled in .config. If perfmon 
support is not enabled, oprofile will just supply the basic TIMER_INT 
implementation.

The patch applies cleanly to the 2.5.67 kernel with the linuxia64.org 
patchs. I have built the kernel, with required code compiled in (no 
modules) and booted the resulting kernel successfully on an Intanium 2 
SMP machine. I am sure some revison is required for the patch for the 
2.5.69 kernel. There was some refactoring of the code TIMER_INT code.

Comments?

-Will