Re: [PATCH] drm/mediatek: Add RENDER capability to DRM device

From: "CK Hu (胡俊光)" <ck.hu@mediatek.com>
To: "wmacek@chromium.org" <wmacek@chromium.org>,
	"linux-mediatek@lists.infradead.org"
	<linux-mediatek@lists.infradead.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"chrome-platform@lists.linux.dev"
	<chrome-platform@lists.linux.dev>,
	"chunkuang.hu@kernel.org" <chunkuang.hu@kernel.org>,
	"daniel@ffwll.ch" <daniel@ffwll.ch>,
	"p.zabel@pengutronix.de" <p.zabel@pengutronix.de>,
	"dri-devel@lists.freedesktop.org"
	<dri-devel@lists.freedesktop.org>,
	"airlied@gmail.com" <airlied@gmail.com>,
	"linux-arm-kernel@lists.infradead.org"
	<linux-arm-kernel@lists.infradead.org>,
	"matthias.bgg@gmail.com" <matthias.bgg@gmail.com>,
	"angelogioacchino.delregno@collabora.com"
	<angelogioacchino.delregno@collabora.com>
Subject: Re: [PATCH] drm/mediatek: Add RENDER capability to DRM device
Date: Mon, 8 Apr 2024 09:49:18 +0000	[thread overview]
Message-ID: <d4b15c6cdec777f8e930473983914ba52457a30d.camel@mediatek.com> (raw)
In-Reply-To: <20240402075352.3147747-1-wmacek@chromium.org>

Hi, Wojciech:

On Tue, 2024-04-02 at 07:53 +0000, Wojciech Macek wrote:
>  	 
> External email : Please do not click links or open attachments until
> you have verified the sender or the content.
>  DRM device shall create /dev/dri/renderXXX entry
> to allow ChromeOS VMs to access the OpenGL rendering
> offload.

I think this is the case Daniel mention in [1]. If so, this should not
upstream. 

[1] 
https://patchwork.kernel.org/project/dri-devel/patch/1452611750-16283-15-git-send-email-p.zabel@pengutronix.de/

Regards,
CK

> 
> Signed-off-by: Wojciech Macek <wmacek@chromium.org>
> ---
>  drivers/gpu/drm/mediatek/mtk_drm_drv.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> index 74832c213092..afa4d6391b08 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> @@ -585,7 +585,8 @@ static struct drm_gem_object
> *mtk_drm_gem_prime_import(struct drm_device *dev,
>  }
>  
>  static const struct drm_driver mtk_drm_driver = {
> -	.driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_ATOMIC,
> +	.driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_ATOMIC
> |
> +			   DRIVER_RENDER,
>  
>  	.dumb_create = mtk_drm_gem_dumb_create,
>  
> -- 
> 2.44.0.478.gd926399ef9-goog
> 
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