tree 595a3fe90daf8c5a5443745507349dff408af5e1
parent e4be260d156409ebdabf1e13ed547d3703801c5f
author Helge Deller <deller@gmx.de> 1382563756 +0200
committer Helge Deller <deller@gmx.de> 1383859706 +0100

parisc: make udelay() SMP-safe

Each CPU has it's own Control Register 16 (CR16) which is used as time source
for the udelay() function. But since the CR16 registers across different CPUs
are not synced, we need to recalculate the loop count if we get switched away
to ensure that we really delay as much time as requested.

Signed-off-by: Helge Deller <deller@gmx.de>