linux/arch/s390/lib
Martin Schwidefsky 4c1051e37a [S390] rework idle code
Whenever the cpu loads an enabled wait PSW it will appear as idle to the
underlying host system. The code in default_idle calls vtime_stop_cpu
which does the necessary voodoo to get the cpu time accounting right.
The udelay code just loads an enabled wait PSW. To correct this rework
the vtime_stop_cpu/vtime_start_cpu logic and move the difficult parts
to entry[64].S, vtime_stop_cpu can now be called from anywhere and
vtime_start_cpu is gone. The correction of the cpu time during wakeup
from an enabled wait PSW is done with a critical section in entry[64].S.
As vtime_start_cpu is gone, s390_idle_check can be removed as well.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2012-03-11 11:59:28 -04:00
..
delay.c [S390] rework idle code 2012-03-11 11:59:28 -04:00
div64.c
Makefile
qrnnd.S
spinlock.c [S390] rework smp code 2012-03-11 11:59:28 -04:00
string.c
uaccess_mvcos.c
uaccess_pt.c [S390] sparse: fix sparse warnings with __user pointers 2011-10-30 15:16:46 +01:00
uaccess_std.c
uaccess.h
ucmpdi2.c
usercopy.c