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Age	Commit message (Collapse)	Author
2014-03-06	irq-metag*: stop set_affinity vectoring to offline cpus	James Hogan
	commit f229006ec6beabf7b844653d92fa61f025fe3dcf upstream. Fix irq_set_affinity callbacks in the Meta IRQ chip drivers to AND cpu_online_mask into the cpumask when picking a CPU to vector the interrupt to. As Thomas pointed out, the /proc/irq/$N/smp_affinity interface doesn't filter out offline CPUs, so without this patch if you offline CPU0 and set an IRQ affinity to 0x3 it vectors the interrupt onto CPU0 even though it is offline. Reported-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-metag@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-02	metag: Internal and external irqchips	James Hogan
	Meta core internal interrupts (from HWSTATMETA and friends) are vectored onto the TR1 core trigger for the current thread. This is demultiplexed in irq-metag.c to individual Linux IRQs for each internal interrupt. External SoC interrupts (from HWSTATEXT and friends) are vectored onto the TR2 core trigger for the current thread. This is demultiplexed in irq-metag-ext.c to individual Linux IRQs for each external SoC interrupt. The external irqchip has devicetree bindings for configuring the number of irq banks and the type of masking available. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Rob Herring <rob.herring@calxeda.com> Cc: Rob Landley <rob@landley.net> Cc: Dom Cobley <popcornmix@gmail.com> Cc: Simon Arlott <simon@fire.lp0.eu> Cc: Viresh Kumar <viresh.kumar@linaro.org> Cc: Maxime Ripard <maxime.ripard@free-electrons.com> Cc: devicetree-discuss@lists.ozlabs.org Cc: linux-doc@vger.kernel.org