linux-kernel - Re: [RFC][PATCHv2 09/12] videobuf2: let user-space know if driver supports cache hints

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Message-ID: <20200219084521.GD122464@google.com>
Date:   Wed, 19 Feb 2020 17:45:21 +0900
From:   Sergey Senozhatsky <senozhatsky@...omium.org>
To:     Hans Verkuil <hverkuil@...all.nl>
Cc:     Sergey Senozhatsky <senozhatsky@...omium.org>,
        Hans Verkuil <hans.verkuil@...co.com>,
        Tomasz Figa <tfiga@...omium.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Kyungmin Park <kyungmin.park@...sung.com>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Sakari Ailus <sakari.ailus@....fi>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Pawel Osciak <posciak@...omium.org>,
        linux-media@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC][PATCHv2 09/12] videobuf2: let user-space know if driver
 supports cache hints

On (20/02/19 09:33), Hans Verkuil wrote:
> On 2/4/20 3:56 AM, Sergey Senozhatsky wrote:
> > Add V4L2_BUF_CAP_SUPPORTS_CACHE_HINTS to fill_buf_caps(), which
> > is set when queue supports user-space cache management hints.
> 
> Ah, you add the capability here :-)
> 
> This should be moved forward in the series. Actually, I think this should
> be merged with the first patch of the series.

OK, can squash. This way I don't have to split 03/12.

I can also update V4L2_BUF_FLAG_NO_CACHE_INVALIDATE/CLEAN in 01/12 then.
Would that work?

	-ss