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authorDavid S. Miller <davem@davemloft.net>2008-11-23 21:55:29 -0800
committerDavid S. Miller <davem@davemloft.net>2008-12-04 09:17:02 -0800
commitb4f4372f96e0573d752d9e45beda02fabf716cc8 (patch)
tree641798dfe78c1407908c68b64427cd55cdc18b34 /Documentation/preempt-locking.txt
parentc6afec5e4d323e7b88a7d6e291a5aa021a8fcb7d (diff)
sparc64: Make %pil level 15 a pseudo-NMI.
So that we can profile code even in a local_irq_disable() section, only write 14 (instead of 15) into the %pil register to disable IRQs. This allows PIL level 15 to serve as a pseudo NMI. Signed-off-by: David S. Miller <davem@davemloft.net>
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