linux-kernel - Re: [PATCH v3 0/3] arm64: dts: hi3798cv200: fix GICR size, add cache info, maintenance irq and GICH, GICV spaces

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Message-ID: <65F03D79.2070008@hisilicon.com>
Date: Tue, 12 Mar 2024 19:33:13 +0800
From: Wei Xu <xuwei5@...ilicon.com>
To: Yang Xiwen <forbidden405@...look.com>, Rob Herring <robh+dt@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, Conor Dooley
	<conor+dt@...nel.org>, Jiancheng Xue <xuejiancheng@...ilicon.com>, Alex Elder
	<elder@...aro.org>, Peter Griffin <peter.griffin@...aro.org>
CC: <linux-arm-kernel@...ts.infradead.org>, <devicetree@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <stable@...r.kernel.org>
Subject: Re: [PATCH v3 0/3] arm64: dts: hi3798cv200: fix GICR size, add cache
 info, maintenance irq and GICH, GICV spaces

Hi Yang,

On 2024/3/12 19:19, Yang Xiwen wrote:
> On 2/19/2024 11:05 PM, Yang Xiwen via B4 Relay wrote:
>> The patchset fixes some warnings reported by the kernel during boot.
>>
>> The cache size info is from Processor_Datasheet_v2XX.pdf [1], Section
>> 2.2.1 Master Processor.
>>
>> The cache line size and the set-associative info are from Cortex-A53
>> Documentation [2].
>>
>>  From the doc, it can be concluded that L1 i-cache is 4-way assoc, L1
>> d-cache is 2-way assoc and L2 cache is 16-way assoc. Calculate the dts
>> props accordingly.
>>
>> Also, to use KVM's VGIC code, GICH, GICV registers spaces and maintenance
>> IRQ are added to the dts with verification.
>>
>> [1]: https://github.com/96boards/documentation/blob/master/enterprise/poplar/hardware-docs/Processor_Datasheet_v2XX.pdf
>> [2]: https://developer.arm.com/documentation/ddi0500/j/Level-1-Memory-System
>>
>> Signed-off-by: Yang Xiwen <forbidden405@...look.com>
>> ---
>> Changes in v3:
>> - send patches to stable (Andrew Lunn)
>> - rewrite the commit logs more formally (Andrew Lunn)
>> - rename l2-cache0 to l2-cache (Krzysztof Kozlowski)
>> - Link to v2: https://lore.kernel.org/r/20240218-cache-v2-0-1fd919e2bd3e@outlook.com
>>
>> Changes in v2:
>> - arm64: dts: hi3798cv200: add GICH, GICV register spces and
>>    maintainance IRQ.
>> - Link to v1: https://lore.kernel.org/r/20240218-cache-v1-0-2c0a8a4472e7@outlook.com
>>
>> ---
>> Yang Xiwen (3):
>>        arm64: dts: hi3798cv200: fix the size of GICR
>>        arm64: dts: hi3798cv200: add GICH, GICV register space and irq
>>        arm64: dts: hi3798cv200: add cache info
>>
>>   arch/arm64/boot/dts/hisilicon/hi3798cv200.dtsi | 43 +++++++++++++++++++++++++-
>>   1 file changed, 42 insertions(+), 1 deletion(-)
>> ---
>> base-commit: 8d3dea210042f54b952b481838c1e7dfc4ec751d
>> change-id: 20240218-cache-11c8bf7566c2
>>
>> Best regards,
> 
> May someone apply this patchset to their tree so that it can land in stable at the end? This is a fix, not adding new functionalities. It's been 2 weeks already.
> 

Sorry for the delay, I am too busy to catch up with this cycle.
I will go through this patch set and maybe apply it during the next cycle.

Best Regards,
Wei