From 3708d52fc6bb34ae16399fe998d515dd7d188ab0 Mon Sep 17 00:00:00 2001 From: Sudeep Holla Date: Tue, 26 Aug 2014 16:03:35 +0100 Subject: [PATCH] irqchip: gic-v3: Implement CPU PM notifier When a CPU enters a low power state, the contents of the GICv3/4 system registers are lost. They need to be saved and restored if required. For now, since most of the GICv3 register are set some initial values and not modified at runtime, it is better to re-initialise rather than saving and restoring them. It may need to be saved and restored in future if required. This patch adds a notifier to disable the redistributor(if allowed) and Group1 interrupts when powering down the processor and to re-initialise the system registers on wakeup. Cc: Lorenzo Pieralisi Signed-off-by: Sudeep Holla Signed-off-by: Marc Zyngier Acked-by: Marc Zyngier Link: https://lkml.kernel.org/r/1409065415-20176-3-git-send-email-sudeep.holla@arm.com Signed-off-by: Jason Cooper --- Reading git-format-patch failed