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4 commits

Author SHA1 Message Date
Max Filippov
04c6b3e2b5 xtensa: optimize local_flush_tlb_kernel_range 
Don't flush whole TLB if only a small kernel range is requested.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
 2014-04-06 21:29:17 +04:00
Kirill Tkhai
abf0ea65e0 xtensa: Enable irqs after cpu is set online 
there is a small possibility that wake_up of softirq thread
happens between local_irq_enable() and set_cpu_online(). In
this case affinity of the thread changes to fallback affinity
(i.e. CPU0). This may be a source of problems.

The patch kills that possibility.

Signed-off-by: Kirill Tkhai <tkhai@yandex.ru>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
 2014-01-15 00:12:41 +04:00
Max Filippov
49b424feda xtensa: implement CPU hotplug 
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Chris Zankel <chris@zankel.net>
 2014-01-14 10:19:59 -08:00
Max Filippov
f615136c06 xtensa: add SMP support 
This is largely based on SMP code from the xtensa-2.6.29-smp tree by
Piet Delaney, Marc Gauthier, Joe Taylor, Christian Zankel (and possibly
other Tensilica folks).

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Chris Zankel <chris@zankel.net>
 2014-01-14 10:19:58 -08:00