linux-kernel - Re: [PATCH] ARM: tegra: nyan: Enable GPU node and related supply

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <f2489bf5-bb08-11f5-1b53-7a1568f20b6b@nvidia.com>
Date:   Tue, 20 Sep 2016 13:24:37 +0100
From:   Jon Hunter <jonathanh@...dia.com>
To:     Paul Kocialkowski <contact@...lk.fr>,
        <linux-kernel@...r.kernel.org>,
        Alexandre Courbot <gnurou@...il.com>,
        Thierry Reding <thierry.reding@...il.com>
CC:     <linux-tegra@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>,
        Stephen Warren <swarren@...dotorg.org>
Subject: Re: [PATCH] ARM: tegra: nyan: Enable GPU node and related supply


On 18/09/16 15:13, Paul Kocialkowski wrote:
> This enables the GPU node for tegra124 nyan boards, which is required to
> get graphics acceleration with nouveau on these devices.
> 
> Signed-off-by: Paul Kocialkowski <contact@...lk.fr>
> ---
>  arch/arm/boot/dts/tegra124-nyan.dtsi | 8 +++++++-
>  1 file changed, 7 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm/boot/dts/tegra124-nyan.dtsi b/arch/arm/boot/dts/tegra124-nyan.dtsi
> index dab9509..225ca77 100644
> --- a/arch/arm/boot/dts/tegra124-nyan.dtsi
> +++ b/arch/arm/boot/dts/tegra124-nyan.dtsi
> @@ -42,6 +42,12 @@
>  		};
>  	};
>  
> +	gpu@0,57000000 {
> +		status = "okay";
> +
> +		vdd-supply = <&vdd_gpu>;
> +	};
> +
>  	serial@...06000 {
>  		/* Debug connector on the bottom of the board near SD card. */
>  		status = "okay";
> @@ -214,7 +220,7 @@
>  					regulator-always-on;
>  				};
>  
> -				sd6 {
> +				vdd_gpu: sd6 {
>  					regulator-name = "+VDD_GPU_AP";
>  					regulator-min-microvolt = <650000>;
>  					regulator-max-microvolt = <1200000>;
> 

Looks good to me. I see the following error when booting but looking at the
code appears to be benign. Thierry, Alex, is this normal/okay?

[    5.715181] nouveau 57000000.gpu: NVIDIA GK20A (0ea000a1)                                                                                            
[    5.720625] nouveau 57000000.gpu: imem: using IOMMU                                                                                                  
[    5.803694] nouveau 57000000.gpu: DRM: VRAM: 0 MiB                                                                                                   
[    5.808501] nouveau 57000000.gpu: DRM: GART: 1048576 MiB                                                                                             
[    5.816000] nouveau 57000000.gpu: DRM: failed to create ce channel, -22                                                                              
[    5.924140] nouveau 57000000.gpu: DRM: MM: using GRCE for buffer copies  

Cheers
Jon

-- 
nvpublic