From: afaerber@suse•de (Andreas Färber)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH 7/8] ARM64: dts: amlogic: Extend GXBaby GIC node
Date: Tue, 1 Mar 2016 12:18:23 +0100 [thread overview]
Message-ID: <56D57A7F.5020806@suse.de> (raw)
In-Reply-To: <56D57673.8030702@arm.com>
Hi Andre,
Am 01.03.2016 um 12:01 schrieb Andre Przywara:
> On 29/02/16 23:44, Andreas F?rber wrote:
>> Add GICH and GICV resources for HYP mode - guess based on other vendors.
>
> Do you know if the firmware allows the kernel to be entered in EL2
> (which is the arm64 name for HYP)?
> So can we run kvm?
> If you have a booted kernel, can you grep for "EL2" and "kvm" in the dmesg?
I do not have a rootfs yet (MMC v5 patches by Carlo are still waiting
for review), but with this change the KVM driver initializes okay - the
purpose of this patch!
> Also you should merge this patch into 3/8, same for 8/8.
If people confirm this is generally or specifically for this SoC correct
then sure. So far 3/8 seems a safe subset for lack of public documentation.
>> Signed-off-by: Andreas F?rber <afaerber@suse•de>
>> ---
>> arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi | 4 +++-
>> 1 file changed, 3 insertions(+), 1 deletion(-)
>>
>> diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi
>> index 0ae089bd1806..5088ae3ff653 100644
>> --- a/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi
>> +++ b/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi
>> @@ -117,7 +117,9 @@
>> gic: interrupt-controller at c4301000 {
>> compatible = "arm,cortex-a15-gic", "arm,cortex-a9-gic";
>
> I think "arm,gic-400" is the name to use here these days, especially for
> arm64.
I took what /proc/device-tree showed on Android and verified that this
compatible is in use in mainline.
>> reg = <0x0 0xc4301000 0 0x1000>,
>> - <0x0 0xc4302000 0 0x0100>;
>> + <0x0 0xc4302000 0 0x0100>,
>
> Please use 0x2000 for the size here. I guess this is really the GIC-400
> from ARM, and in this case this is the right size, [1] is the reference
> here. This will enable EOI mode 1 for KVM.
Will test later.
Is there any easy way to find out whether or not this is that GIC-400?
Thanks,
Andreas
> [1]
> http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0471b/CHDIFAEE.html
>
>> + <0x0 0xc4304000 0 0x2000>,
>> + <0x0 0xc4306000 0 0x2000>;
>> interrupt-controller;
>> interrupts = <GIC_PPI 9
>> (GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_HIGH)>;
--
SUSE Linux GmbH, Maxfeldstr. 5, 90409 N?rnberg, Germany
GF: Felix Imend?rffer, Jane Smithard, Graham Norton; HRB 21284 (AG N?rnberg)
next prev parent reply other threads:[~2016-03-01 11:18 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-29 23:44 [PATCH 0/8] ARM64: meson: GXBaby (S905) and Vega S95 enablement Andreas Färber
2016-02-29 23:44 ` [PATCH 1/8] ARM64: Enable Amlogic Meson GXBaby platform Andreas Färber
2016-03-01 14:43 ` Sudeep Holla
2016-03-01 15:26 ` Andreas Färber
2016-03-01 16:07 ` Sudeep Holla
2016-02-29 23:44 ` [PATCH 2/8] Documentation: devicetree: amlogic: Document Meson GXBaby Andreas Färber
2016-02-29 23:44 ` [PATCH 3/8] ARM64: dts: Prepare configs for Amlogic " Andreas Färber
2016-03-01 14:43 ` Sudeep Holla
2016-03-01 15:18 ` Andreas Färber
2016-03-01 16:19 ` Sudeep Holla
2016-02-29 23:44 ` [PATCH 4/8] Documentation: devicetree: Document Tronsmart vendor prefix Andreas Färber
2016-03-01 11:37 ` Matthias Brugger
2016-03-01 11:53 ` Andreas Färber
2016-03-01 13:29 ` Matthias Brugger
2016-03-01 19:23 ` Beniamino Galvani
2016-03-03 23:57 ` Rob Herring
2016-02-29 23:44 ` [PATCH 5/8] Documentation: devicetree: amlogic: Document Tronsmart Vega S95 boards Andreas Färber
2016-02-29 23:44 ` [PATCH 6/8] ARM64: dts: amlogic: Add Tronsmart Vega S95 configs Andreas Färber
2016-02-29 23:55 ` Andreas Färber
2016-02-29 23:44 ` [PATCH 7/8] ARM64: dts: amlogic: Extend GXBaby GIC node Andreas Färber
2016-03-01 11:01 ` Andre Przywara
2016-03-01 11:18 ` Andreas Färber [this message]
2016-03-01 11:42 ` Matthias Brugger
2016-03-01 12:43 ` Andre Przywara
2016-03-01 12:53 ` Carlo Caione
2016-03-01 14:16 ` Andre Przywara
2016-03-01 22:46 ` Andreas Färber
2016-03-01 22:58 ` André Przywara
2016-03-01 23:31 ` Andreas Färber
2016-03-02 0:03 ` André Przywara
2016-03-02 0:07 ` Andreas Färber
2016-02-29 23:44 ` [PATCH 8/8] ARM64: dts: amlogic: Add arch timer node for Meson GXBaby Andreas Färber
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