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From: "Jernej Škrabec" <jernej.skrabec@gmail.com>
To: Maxime Ripard <mripard@kernel.org>,
	Nicolas Dufresne <nicolas.dufresne@collabora.com>
Cc: Paul Kocialkowski <paul.kocialkowski@bootlin.com>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Chen-Yu Tsai <wens@csie.org>,
	linux-media@vger.kernel.org, linux-staging@lists.linux.dev,
	linux-arm-kernel@lists.infradead.org,
	linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] media: cedrus: Fix SUNXI tile size calculation
Date: Thu, 19 Aug 2021 18:30:56 +0200	[thread overview]
Message-ID: <3519986.qLKfoAsNv3@jernej-laptop> (raw)
In-Reply-To: <20210819140009.158156-1-nicolas.dufresne@collabora.com>

Hi Nicolas!

Dne četrtek, 19. avgust 2021 ob 16:00:09 CEST je Nicolas Dufresne napisal(a):
> Tiled formats requires full rows being allocated (even for Chroma
> planes). When the number of Luma tiles is odd, we need to round up
> to twice the tile width in order to roundup the number of Chroma
> tiles.
> 
> This was notice with a crash running BA1_FT_C compliance test using
> sunxi tiles using GStreamer. Cedrus driver would allocate 9 rows for
> Luma, but only 4.5 rows for Chroma, causing userspace to crash.
> 
> Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>

Fixes tag would be nice so it would be picked up for stable branches. 
Otherwise it looks good. It also aligns logic with libvdpau-sunxi.

Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>

Best regards,
Jernej



  reply	other threads:[~2021-08-19 16:31 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-19 14:00 [PATCH] media: cedrus: Fix SUNXI tile size calculation Nicolas Dufresne
2021-08-19 16:30 ` Jernej Škrabec [this message]
2021-08-19 17:54   ` Nicolas Dufresne

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