torvalds/linux
torvalds/linux
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3 Commits

Author SHA1 Message Date
David S. Miller
b62818e5ff sparc64: Fix NMI startup bug which also breaks perf. 
Doing NMI startup as an early initcall doesn't work because we need
to have SMP started up by then.

So we'd only NMI startup one cpu, which causes perf PMU grab to
BUG because the nmi_active count isn't what it's supposed to be.

This also points out that we don't have proper CPU up/down notifiers
for the NMI code which will need to be fixed at some point.

Signed-off-by: David S. Miller <davem@davemloft.net>
 2011-02-15 15:04:07 -08:00
David S. Miller
e5553a6d04 sparc64: Implement NMI watchdog on capable cpus. 
Signed-off-by: David S. Miller <davem@davemloft.net>
 2009-01-30 00:03:53 -08:00
David S. Miller
3eb8057bba sparc64: Move generic PCR support code to seperate file. 
It all lives in the oprofile support code currently and we will need
to share this stuff with NMI watchdog and perf_counter support.

Signed-off-by: David S. Miller <davem@davemloft.net>
 2009-01-28 17:13:57 -08:00