talos-hostboot - Talos™ II hostboot sources

	Commit message (Collapse)	Author	Age	Files	Lines
*	Set "high" thread priority as 2 rather than 3.	Patrick Williams	2012-09-05	1	-5/+3
\| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \|	The Power processor has instructions of the form 'or a,a,a' that allow code to change the priority of a hw-thread relative to the others. We initially used 'or 1,1,1' as low priority and 'or 3,3,3' as high priority. This is used in, for instance, spinlocks to reduce the priority of a hw-thread while waiting for another thread to perform an activity. This code originally came from HAL. In reading the Power ISA closer I realized that 'or 3,3,3' has no effect when in user-space code, which means that a spinlock-like effect in user code is going to end up with the thread stuck at low priority until the next context switch. To prevent this we are going to change from 1/3 to 1/2 as the priority levels. Change-Id: I60ee866cde37499106f5e1e1d68a0b5ddeedf403 Reviewed-on: http://gfw160.austin.ibm.com:8080/gerrit/1569 Tested-by: Jenkins Server Reviewed-by: A. Patrick Williams III <iawillia@us.ibm.com>
*	Write scratch register in start_payload / shutdown.	Patrick Williams	2012-09-04	1	-0/+6
\| \| \| \| \| \| \| \| \| \|	Change-Id: I47a8ad7914c6833c476a7944be5d352f45467f3a RTC: 47725 Reviewed-on: http://gfw160.austin.ibm.com:8080/gerrit/1646 Tested-by: Jenkins Server Reviewed-by: Mark W. Wenning <wenning@us.ibm.com> Reviewed-by: Douglas R. Gilbert <dgilbert@us.ibm.com> Reviewed-by: A. Patrick Williams III <iawillia@us.ibm.com>
*	Ensure PHYP thread order is correct.	Patrick Williams	2012-08-22	1	-0/+162
	* Choose thread with the lowest PIR as the last to enter payload. * Use HRMOR update process from Murano Book IV. RTC: 43166 Change-Id: I629f4a55cba1967a13c31a16095697b7142ca407 Reviewed-on: http://gfw160.austin.ibm.com:8080/gerrit/1529 Tested-by: Jenkins Server Reviewed-by: A. Patrick Williams III <iawillia@us.ibm.com>