From: "Jiaxun Yang" <jiaxun.yang@flygoat.com>
To: "Gregory CLEMENT" <gregory.clement@bootlin.com>,
"paulburton@kernel.org" <paulburton@kernel.org>,
"Thomas Bogendoerfer" <tsbogend@alpha.franken.de>,
"linux-mips@vger.kernel.org" <linux-mips@vger.kernel.org>,
"Rob Herring" <robh+dt@kernel.org>,
"Krzysztof Kozlowski" <krzysztof.kozlowski+dt@linaro.org>,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: "Vladimir Kondratiev" <vladimir.kondratiev@mobileye.com>,
"Tawfik Bayouk" <tawfik.bayouk@mobileye.com>,
"Alexandre Belloni" <alexandre.belloni@bootlin.com>,
"Théo Lebrun" <theo.lebrun@bootlin.com>,
"Thomas Petazzoni" <thomas.petazzoni@bootlin.com>
Subject: Re: [PATCH v2 20/21] MIPS: generic: Add support for Mobileye EyeQ5
Date: Fri, 01 Dec 2023 10:49:19 +0000 [thread overview]
Message-ID: <7cdf280c-c3b4-4996-9854-d24c4842ff4d@app.fastmail.com> (raw)
In-Reply-To: <87ttp2dxe1.fsf@BL-laptop>
在2023年12月1日十二月 上午10:34，Gregory CLEMENT写道：
> "Jiaxun Yang" <jiaxun.yang@flygoat.com> writes:
>
>> 在2023年11月23日十一月 下午3:26，Gregory CLEMENT写道：
>>> Introduce support for the MIPS based Mobileye EyeQ5 SoCs.
>>>
>>> Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
>>> ---
>> [...]
>>> diff --git a/arch/mips/generic/Kconfig b/arch/mips/generic/Kconfig
>>> index 7dc5b3821cc6e..04e1fc6f789b5 100644
>>> --- a/arch/mips/generic/Kconfig
>>> +++ b/arch/mips/generic/Kconfig
>>> @@ -48,6 +48,13 @@ config SOC_VCOREIII
>>> config MSCC_OCELOT
>>> bool
>>>
>>> +config SOC_EYEQ5
>>> + select ARM_AMBA
>>> + select WEAK_ORDERING
>>> + select WEAK_REORDERING_BEYOND_LLSC
>>> + select PHYSICAL_START_BOOL
>>> + bool
>>
>> ^ I believe WEAK_ORDERING is already selected by MIPS_CPS,
>
> But MIPS_CPS can be disabled: it is not selected by
> MIPS_GENERIC_KERNEL.
IMO if MIPS_CPS is not select then there is no SMP support on this platform.
WEAK_ORDERING only make sense for SMP system.
>
>> and WEAK_REORDERING_BEYOND_LLSC should be selected by MIPS_CPS as well.
>
> WEAK_REORDERING_BEYOND_LLSC is only selected by CPU_LOONGSON64 for
> now not by MIPS_CPS
I believe this applies to all SMP cores from MTI, I'll check with hardware
folks.
Thanks
- Jiaxun
>
> Thanks,
>
> Gregory
>>
>> Thanks
>> --
>> - Jiaxun
>
> --
> Gregory Clement, Bootlin
> Embedded Linux and Kernel engineering
> http://bootlin.com
--
- Jiaxun
next prev parent reply other threads:[~2023-12-01 10:50 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-23 15:26 [PATCH v2 00/21] Add support for the Mobileye EyeQ5 SoC Gregory CLEMENT
2023-11-23 15:26 ` [PATCH v2 01/21] MIPS: compressed: Use correct instruction for 64 bit code Gregory CLEMENT
2023-11-23 15:26 ` [PATCH v2 02/21] MIPS: Export higher/highest relocation functions in uasm Gregory CLEMENT
2023-11-23 15:26 ` [PATCH v2 03/21] MIPS: spaces: Define a couple of handy macros Gregory CLEMENT
2023-11-23 15:26 ` [PATCH v2 04/21] MIPS: genex: Fix except_vec_vi for kernel in XKPHYS Gregory CLEMENT
2023-11-23 15:26 ` [PATCH v2 05/21] MIPS: Fix set_uncached_handler for ebase " Gregory CLEMENT
2023-11-23 15:26 ` [PATCH v2 06/21] MIPS: Refactor mips_cps_core_entry implementation Gregory CLEMENT
2023-11-23 15:26 ` [PATCH v2 07/21] MIPS: Fix cache issue with mips_cps_core_entry Gregory CLEMENT
2023-11-23 15:26 ` [PATCH v2 08/21] MIPS: Allow kernel base to be set from Kconfig for all platforms Gregory CLEMENT
2023-11-23 15:26 ` [PATCH v2 09/21] MIPS: traps: Handle CPU with non standard vint offset Gregory CLEMENT
2023-11-23 15:26 ` [PATCH v2 10/21] MIPS: Avoid unnecessary reservation of exception space Gregory CLEMENT
2023-11-23 15:26 ` [PATCH v2 11/21] MIPS: traps: Enhance memblock ebase allocation process Gregory CLEMENT
2023-11-23 15:26 ` [PATCH v2 12/21] MIPS: Get rid of CONFIG_NO_EXCEPT_FILL Gregory CLEMENT
2023-11-23 15:26 ` [PATCH v2 13/21] MIPS: traps: Give more explanations if ebase doesn't belong to KSEG0 Gregory CLEMENT
2023-11-26 11:31 ` kernel test robot
2023-11-23 15:26 ` [PATCH v2 14/21] dt-bindings: Add vendor prefix for Mobileye Vision Technologies Ltd Gregory CLEMENT
2023-11-23 15:26 ` [PATCH v2 15/21] dt-bindings: mips: cpu: Add I-Class I6500 Multiprocessor Core Gregory CLEMENT
2023-11-24 8:25 ` Krzysztof Kozlowski
2023-11-30 10:51 ` Gregory CLEMENT
2023-11-30 12:00 ` Krzysztof Kozlowski
2023-11-24 11:37 ` Serge Semin
2023-11-23 15:26 ` [PATCH v2 16/21] dt-bindings: mips: Add bindings for Mobileye SoCs Gregory CLEMENT
2023-11-23 16:57 ` Rob Herring
2023-11-26 18:57 ` Rob Herring
2023-11-23 15:26 ` [PATCH v2 17/21] dt-bindings: mfd: syscon: Document EyeQ5 OLB Gregory CLEMENT
2023-11-24 8:25 ` Krzysztof Kozlowski
2023-11-23 15:26 ` [PATCH v2 18/21] MIPS: mobileye: Add EyeQ5 dtsi Gregory CLEMENT
2023-11-24 8:27 ` Krzysztof Kozlowski
2023-12-01 10:56 ` Gregory CLEMENT
2023-11-23 15:26 ` [PATCH v2 19/21] MIPS: mobileye: Add EPM5 device tree Gregory CLEMENT
2023-11-23 15:26 ` [PATCH v2 20/21] MIPS: generic: Add support for Mobileye EyeQ5 Gregory CLEMENT
2023-11-23 17:46 ` Jiaxun Yang
2023-12-01 10:34 ` Gregory CLEMENT
2023-12-01 10:49 ` Jiaxun Yang [this message]
2023-11-23 15:26 ` [PATCH v2 21/21] MAINTAINERS: Add entry for Mobileye MIPS SoCs Gregory CLEMENT
2023-11-23 17:31 ` [PATCH v2 00/21] Add support for the Mobileye EyeQ5 SoC Jiaxun Yang
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