From mboxrd@z Thu Jan 1 00:00:00 1970 From: catalin.marinas@arm.com (Catalin Marinas) Date: Wed, 25 Mar 2015 17:27:28 +0000 Subject: [patch v11 16/23] irqchip: Add GICv2 specific ACPI boot support In-Reply-To: <1427205776-5060-17-git-send-email-hanjun.guo@linaro.org> References: <1427205776-5060-1-git-send-email-hanjun.guo@linaro.org> <1427205776-5060-17-git-send-email-hanjun.guo@linaro.org> Message-ID: <20150325172728.GL14585@localhost> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Tue, Mar 24, 2015 at 10:02:49PM +0800, Hanjun Guo wrote: > From: Tomasz Nowicki > > 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 > CC: Marc Zyngier > CC: Thomas Gleixner > Tested-by: Suravee Suthikulpanit > Tested-by: Yijing Wang > Tested-by: Mark Langsdorf > Tested-by: Jon Masters > Tested-by: Timur Tabi > Tested-by: Robert Richter > Acked-by: Robert Richter > Acked-by: Marc Zyngier > Acked-by: Jason Cooper > Reviewed-by: Grant Likely > Signed-off-by: Tomasz Nowicki > Signed-off-by: Hanjun Guo Acked-by: Catalin Marinas