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From: Conor Dooley <conor@kernel.org>
To: Charlie Jenkins <charlie@rivosinc.com>
Cc: "Rob Herring" <robh@kernel.org>,
	"Krzysztof Kozlowski" <krzysztof.kozlowski+dt@linaro.org>,
	"Paul Walmsley" <paul.walmsley@sifive.com>,
	"Palmer Dabbelt" <palmer@dabbelt.com>,
	"Albert Ou" <aou@eecs.berkeley.edu>,
	"Guo Ren" <guoren@kernel.org>,
	"Conor Dooley" <conor+dt@kernel.org>,
	"Chen-Yu Tsai" <wens@csie.org>,
	"Jernej Skrabec" <jernej.skrabec@gmail.com>,
	"Samuel Holland" <samuel@sholland.org>,
	"Conor Dooley" <conor.dooley@microchip.com>,
	"Evan Green" <evan@rivosinc.com>,
	"Clément Léger" <cleger@rivosinc.com>,
	"Jonathan Corbet" <corbet@lwn.net>,
	"Shuah Khan" <shuah@kernel.org>,
	linux-riscv@lists.infradead.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	"Palmer Dabbelt" <palmer@rivosinc.com>,
	linux-arm-kernel@lists.infradead.org,
	linux-sunxi@lists.linux.dev, linux-doc@vger.kernel.org,
	linux-kselftest@vger.kernel.org
Subject: Re: [PATCH v2 04/17] riscv: dts: allwinner: Add xtheadvector to the D1/D1s devicetree
Date: Tue, 16 Apr 2024 16:28:19 +0100	[thread overview]
Message-ID: <20240416-scorer-easeful-4dae3c18465d@spud> (raw)
In-Reply-To: <20240415-dev-charlie-support_thead_vector_6_9-v2-4-c7d68c603268@rivosinc.com>


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On Mon, Apr 15, 2024 at 09:12:01PM -0700, Charlie Jenkins wrote:
> The D1/D1s SoCs support xtheadvector which should be included in the
> devicetree. Also include vendorid for the cpu.
> 
> Signed-off-by: Charlie Jenkins <charlie@rivosinc.com>
> ---
>  arch/riscv/boot/dts/allwinner/sun20i-d1s.dtsi | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/riscv/boot/dts/allwinner/sun20i-d1s.dtsi b/arch/riscv/boot/dts/allwinner/sun20i-d1s.dtsi
> index 64c3c2e6cbe0..4788bb50afa2 100644
> --- a/arch/riscv/boot/dts/allwinner/sun20i-d1s.dtsi
> +++ b/arch/riscv/boot/dts/allwinner/sun20i-d1s.dtsi
> @@ -27,7 +27,8 @@ cpu0: cpu@0 {
>  			riscv,isa = "rv64imafdc";
>  			riscv,isa-base = "rv64i";
>  			riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "zicntr", "zicsr",
> -					       "zifencei", "zihpm";
> +					       "zifencei", "zihpm", "xtheadvector";


> +			riscv,vendorid = <0x00000000 0x0000005b7>;

Isn't this effectively useless given there's only one CPU here?
We also already know the vendor of the hart, because the compatible says
it is a "thead,c906" so this doesn't provide any new information.

>  			#cooling-cells = <2>;
>  
>  			cpu0_intc: interrupt-controller {
> 
> -- 
> 2.44.0
> 

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  reply	other threads:[~2024-04-16 15:28 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-04-16  4:11 [PATCH v2 00/17] riscv: Support vendor extensions and xtheadvector Charlie Jenkins
2024-04-16  4:11 ` [PATCH v2 01/17] riscv: cpufeature: Fix thead vector hwcap removal Charlie Jenkins
2024-04-16 15:03   ` Conor Dooley
2024-04-16 20:40     ` Charlie Jenkins
2024-04-16  4:11 ` [PATCH v2 02/17] dt-bindings: riscv: Add xtheadvector ISA extension description Charlie Jenkins
2024-04-16 15:16   ` Conor Dooley
2024-04-16 20:43     ` Charlie Jenkins
2024-04-16 21:10       ` Conor Dooley
2024-04-17 22:51         ` Charlie Jenkins
2024-04-16  4:12 ` [PATCH v2 03/17] dt-bindings: riscv: Add vendorid Charlie Jenkins
2024-04-16 15:05   ` Conor Dooley
2024-04-16  4:12 ` [PATCH v2 04/17] riscv: dts: allwinner: Add xtheadvector to the D1/D1s devicetree Charlie Jenkins
2024-04-16 15:28   ` Conor Dooley [this message]
2024-04-16 20:39     ` Charlie Jenkins
2024-04-16  4:12 ` [PATCH v2 05/17] riscv: Fix extension subset checking Charlie Jenkins
2024-04-16  4:12 ` [PATCH v2 06/17] riscv: Extend cpufeature.c to detect vendor extensions Charlie Jenkins
2024-04-17 13:42   ` Conor Dooley
2024-04-16  4:12 ` [PATCH v2 07/17] riscv: Introduce vendor variants of extension helpers Charlie Jenkins
2024-04-16  4:12 ` [PATCH v2 08/17] riscv: drivers: Convert xandespmu to use the vendor extension framework Charlie Jenkins
2024-04-16  4:12 ` [PATCH v2 09/17] riscv: uaccess: Add alternative for xtheadvector uaccess Charlie Jenkins
2024-04-16  4:12 ` [PATCH v2 10/17] RISC-V: define the elements of the VCSR vector CSR Charlie Jenkins
2024-04-16  4:12 ` [PATCH v2 11/17] riscv: csr: Add CSR encodings for VCSR_VXRM/VCSR_VXSAT Charlie Jenkins
2024-04-16  4:12 ` [PATCH v2 12/17] riscv: Create xtheadvector file Charlie Jenkins
2024-04-16  4:12 ` [PATCH v2 13/17] riscv: vector: Support xtheadvector save/restore Charlie Jenkins
2024-04-17 14:50   ` Conor Dooley
2024-04-17 22:00     ` Charlie Jenkins
2024-04-16  4:12 ` [PATCH v2 14/17] riscv: hwprobe: Add vendor extension probing Charlie Jenkins
2024-04-16  4:12 ` [PATCH v2 15/17] riscv: hwprobe: Document vendor extensions and xtheadvector extension Charlie Jenkins
2024-04-16  4:12 ` [PATCH v2 16/17] selftests: riscv: Fix vector tests Charlie Jenkins
2024-04-16  4:12 ` [PATCH v2 17/17] selftests: riscv: Support xtheadvector in " Charlie Jenkins
2024-04-16 15:39 ` [PATCH v2 00/17] riscv: Support vendor extensions and xtheadvector Conor Dooley
2024-04-17 13:17 ` Conor Dooley

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