[patch v11 16/23] irqchip: Add GICv2 specific ACPI boot support

[Catalin Marinas]

On Tue, Mar 24, 2015 at 10:02:49PM +0800, Hanjun Guo wrote:
> From: Tomasz Nowicki <tomasz.nowicki at linaro.org>
> 
> ACPI kernel uses MADT table for proper GIC initialization. It needs to
> parse GIC related subtables, collect CPU interface and distributor
> addresses and call driver initialization function (which is hardware
> abstraction agnostic). In a similar way, FDT initialize GICv1/2.
> 
> NOTE: This commit allow to initialize GICv1/2 basic functionality.
> While now simple GICv2 init call is used, any further GIC features
> require generic infrastructure for proper ACPI irqchip initialization.
> That mechanism and stacked irqdomains to support GICv2 MSI/virtualization
> extension, GICv3/4 and its ITS are considered as next steps.
> 
> CC: Jason Cooper <jason at lakedaemon.net>
> CC: Marc Zyngier <marc.zyngier at arm.com>
> CC: Thomas Gleixner <tglx at linutronix.de>
> Tested-by: Suravee Suthikulpanit <Suravee.Suthikulpanit at amd.com>
> Tested-by: Yijing Wang <wangyijing at huawei.com>
> Tested-by: Mark Langsdorf <mlangsdo at redhat.com>
> Tested-by: Jon Masters <jcm at redhat.com>
> Tested-by: Timur Tabi <timur at codeaurora.org>
> Tested-by: Robert Richter <rrichter at cavium.com>
> Acked-by: Robert Richter <rrichter at cavium.com>
> Acked-by: Marc Zyngier <marc.zyngier at arm.com>
> Acked-by: Jason Cooper <jason at lakedaemon.net>
> Reviewed-by: Grant Likely <grant.likely at linaro.org>
> Signed-off-by: Tomasz Nowicki <tomasz.nowicki at linaro.org>
> Signed-off-by: Hanjun Guo <hanjun.guo at linaro.org>

Acked-by: Catalin Marinas <catalin.marinas at arm.com>