On Tuesday 14 August 2012, Catalin Marinas wrote: > This patch adds SMP initialisation and spinlocks implementation for > AArch64. The spinlock support uses the new load-acquire/store-release > instructions to avoid explicit barriers. The architecture also specifies > that an event is automatically generated when clearing the exclusive > monitor state to wake up processors in WFE, so there is no need for an > explicit DSB/SEV instruction sequence. The SEVL instruction is used to > set the exclusive monitor locally as there is no conditional WFE and a > branch is more expensive. > > For the SMP booting protocol, see Documentation/arm64/booting.txt. > > Signed-off-by: Will Deacon <will.deacon@xxxxxxx> > Signed-off-by: Marc Zyngier <marc.zyngier@xxxxxxx> > Signed-off-by: Catalin Marinas <catalin.marinas@xxxxxxx> Acked-by: Arnd Bergmann <arnd@xxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
