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Date: Fri, 21 Nov 2014 16:25:55 +0000 From: "Suthikulpanit, Suravee" <Suravee.Suthikulpanit@....com> To: Marc Zyngier <marc.zyngier@....com>, Mark Rutland <Mark.Rutland@....com>, Will Deacon <Will.Deacon@....com>, Catalin Marinas <Catalin.Marinas@....com> CC: Liviu Dudau <Liviu.Dudau@....com>, "linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "Lendacky, Thomas" <Thomas.Lendacky@....com>, "Schopp, Joel" <Joel.Schopp@....com> Subject: Re: [PATCH V3] arm64: amd-seattle: Adding device tree for AMD Seattle platform On 11/21/14, 21:48, "Marc Zyngier" <marc.zyngier@....com> wrote: >On 21/11/14 14:40, Suthikulpanit, Suravee wrote: >> >> >> On 11/21/14, 19:57, "Marc Zyngier" <marc.zyngier@....com> wrote: >> >>>> + gic: interrupt-controller@...01000 { >>>> + compatible = "arm,gic-400", "arm,cortex-a15-gic"; >>>> + interrupt-controller; >>>> + #interrupt-cells = <3>; >>>> + #address-cells = <2>; >>>> + #size-cells = <2>; >>>> + reg = <0x0 0xe1110000 0 0x1000>, >>>> + <0x0 0xe112f000 0 0x2000>, >>>> + <0x0 0xe1140000 0 0x10000>, >>>> + <0x0 0xe1160000 0 0x10000>; >>>> + interrupts = <1 8 0xf04>; >>> >>> Are you sure about this one? ARM systems usually have this wired on >>>PPI9 >>> (interrupt 25)... >>> >>> Thanks, >>> >>> M. >> >> I think you might be right. GIC-400 TRM says that this is should be >> 25, and used for virtual maintenance interrupts. How can I verify >> this in Linux? KVM? > >KVM is one way, but you'll never see the interrupt firing (we kill the >interrupt while in HYP, before the kernel gets a chance to see it). > >If you effectively have GIC400 on this system, then I know for sure this >is interrupt 25. I¹ll make the change. Thanks for clarification. Suravee > >Thanks, > > M. >-- >Jazz is not dead. It just smells funny... -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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