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authorPaul Mackerras <paulus@samba.org>2005-04-16 15:24:16 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:24:16 -0700
commit6460b4cceba0181308042c8d8794eb679bfa22e5 (patch)
treea0b9f388bf205b7f0fff9f5c7f8e31dacf12be7e /drivers/nubus
parent35b535d9cc8dce79c3b72f47c4417c3159d7a8c9 (diff)
[PATCH] ppc32: improve timebase sync for SMP
Currently the procedure in the ppc32 kernel that synchronizes the timebase registers across an SMP powermac system does so by setting both timebases to zero. That is OK at boot but causes problems if done later. So that we can do hotplug CPU on these machines, this patch changes the code so it reads the timebase from one CPU and transfers the value to the other CPU. (Hotplug CPU is needed for sleep (aka suspend to RAM) to work.) Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/nubus')
0 files changed, 0 insertions, 0 deletions