tree 4b82d1ee1e8bbb5f21d5f81bb0a73cf3daa8efb4
parent 8a3360f06cd4d3b1d57f73e029f2f8b6057fdcba
author Alex Chiang <achiang@hp.com> 1210277003 -0600
committer Tony Luck <tony.luck@intel.com> 1210804927 -0700

[IA64] allow user to force_pal_cache_flush

The sequence executed in check_sal_cache_flush:

	- pend a timer interrupt
	- call SAL_CACHE_FLUSH
	- see if interrupt is still pending

can hang HP machines with buggy SAL_CACHE_FLUSH implementations.

Provide a kernel command-line argument to allow users skip this
check if desired. Using this parameter will force ia64_sal_cache_flush
to call ia64_pal_cache_flush() instead of SAL_CACHE_FLUSH.

Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>