From: Nicolas Dufresne <nicolas@ndufresne.ca>
To: Adam Ford <aford173@gmail.com>,
Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Cc: Tim Harvey <tharvey@gateworks.com>,
linux-media <linux-media@vger.kernel.org>,
Schrempf Frieder <frieder.schrempf@kontron.de>,
Marek Vasut <marek.vasut@gmail.com>,
Jagan Teki <jagan@amarulasolutions.com>,
Adam Ford-BE <aford@beaconembedded.com>,
cstevens@beaconembedded.com,
Philipp Zabel <p.zabel@pengutronix.de>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Rob Herring <robh+dt@kernel.org>, Shawn Guo <shawnguo@kernel.org>,
Sascha Hauer <s.hauer@pengutronix.de>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
Fabio Estevam <festevam@gmail.com>,
NXP Linux Team <linux-imx@nxp.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Heiko Stuebner <heiko@sntech.de>,
Lucas Stach <l.stach@pengutronix.de>,
Joakim Zhang <qiangqing.zhang@nxp.com>,
Alice Guo <alice.guo@nxp.com>, Peng Fan <peng.fan@nxp.com>,
"open list:HANTRO VPU CODEC DRIVER"
<linux-rockchip@lists.infradead.org>,
"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
<devicetree@vger.kernel.org>,
"moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE"
<linux-arm-kernel@lists.infradead.org>,
open list <linux-kernel@vger.kernel.org>,
"open list:STAGING SUBSYSTEM" <linux-staging@lists.linux.dev>
Subject: Re: [RFC 0/5] arm64: imx8mm: Enable Hantro VPUs
Date: Fri, 17 Dec 2021 12:13:37 -0500 [thread overview]
Message-ID: <8438070708d16c34c0f79aba19e67fa343adb169.camel@ndufresne.ca> (raw)
In-Reply-To: <CAHCN7xL4y67V6AW5MV=8iudvvGVBWs2LoUhu_2CUJf6bSycgFA@mail.gmail.com>
Le vendredi 17 décembre 2021 à 07:15 -0600, Adam Ford a écrit :
> On Thu, Dec 16, 2021 at 10:49 PM Ezequiel Garcia
> <ezequiel@vanguardiasur.com.ar> wrote:
> >
> > Hi Adam,
> >
> > >
> > > I will post a V2 last today with the Mini's post-processing removed.
> > > Someone, I apologize that I forget who, mentioned it was fused out of
> > > the Mini, so the testing I've been doing was with that removed and I
> > > removed the H1 encoder since the Mini doesn't support JPEG encoding.
> > >
> > [...]
> >
> > Resurrecting this thread here. IMX8MMRM Rev. 0, 02/2019 mentions
> > post-processor features for G1 and G2.
> >
> > Have you checked the fuse and synth registers to see if they throw
> > any useful information about the hardware? For instance,
> > comparing PP fuse register (SWREG99) and
> > Synthesis configuration register post-processor (SWREG100)
> > in both 8MQ and 8MM could be useful.
> >
> > As I mentioned on my previous mail, even if G1 PP is disabled
> > on the Mini, I would imagine the G2 can do linear NV12 (aka raster-scan)
> > which in our hantro driver jargon is a "post-processed" format :-)
>
> You're likely right. I was going on memory from an e-mail from
> Nicloas Defresne who wrote:
>
> "I will check the patchset, but you need in the mini-variant to disable the G1
> post processor, because this block was fused out. We didn't make it optional
> from the start as according to the V1 of the TRM it was there, but that error
> was corrected in V3."
>
> In my head I assumed the G2 was affected as well, but when I double
> checked his email, and based on the above statement, the G2
> post-processing is probably there, so I'll run some tests with the G2
> post-processing enabled. I'll also double check those registers on
> both to confirm what they read. I am not sure when I'll have time
> because I leave for London next week, and I won't return until early
> January, but I'll do what I can.
Sorry if this was a bit ambiguous, indeed I meant the G1 only. I've learned
later that the design of the Mini is that there is a good pre-processor in the
H1 block (encoder), so for the targeted use-cases this shall be sufficient for
most users (the output of the G1 is suitable for GPU and Display already, so the
post processor is not strictly needed).
regards,
Nicolas
>
> adam
> >
> > Thanks,
> > Ezequiel
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next prev parent reply other threads:[~2021-12-17 18:13 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-06 18:37 [RFC 0/5] arm64: imx8mm: Enable Hantro VPUs Adam Ford
2021-11-06 18:37 ` [RFC 1/5] media: hantro: Add support for i.MX8M Mini Adam Ford
2021-11-20 16:03 ` Adam Ford
2021-11-25 15:35 ` Hans Verkuil
2021-11-06 18:37 ` [RFC 2/5] arm64: dts: imx8mm: Enable VPU-G1 and VPU-G2 Adam Ford
2021-11-06 18:37 ` [RFC 3/5] media: hantro: Rename ROCKCHIP_VPU_ENC_FMT to HANTRO_VPU_ENC_FMT Adam Ford
2021-11-06 18:38 ` [RFC 4/5] media: hantro: Add H1 encoder support on i.MX8M Mini Adam Ford
2021-11-07 23:21 ` Adam Ford
2021-11-06 18:38 ` [RFC 5/5] arm64: dts: imx8mm: Enable Hantro H1 Encoder Adam Ford
2021-11-08 13:59 ` [RFC 0/5] arm64: imx8mm: Enable Hantro VPUs Nicolas Dufresne
2021-11-08 16:33 ` Adam Ford
2021-11-09 15:57 ` Nicolas Dufresne
2021-11-16 23:23 ` Tim Harvey
2021-11-18 14:30 ` Nicolas Dufresne
2021-11-18 16:20 ` Tim Harvey
2021-11-18 18:16 ` Adam Ford
2021-11-19 16:29 ` Nicolas Dufresne
2021-11-19 23:37 ` Adam Ford
2021-11-20 15:36 ` Adam Ford
2021-11-22 17:25 ` Tim Harvey
2021-11-23 20:07 ` Nicolas Dufresne
2021-11-29 16:48 ` Adam Ford
2021-11-29 16:54 ` Ezequiel Garcia
2021-11-29 18:59 ` Adam Ford
2021-11-29 19:35 ` Tim Harvey
2021-11-29 19:42 ` Adam Ford
2021-11-30 14:00 ` Ezequiel Garcia
2021-11-30 19:28 ` Tim Harvey
2021-11-30 20:33 ` Adam Ford
2021-12-17 4:48 ` Ezequiel Garcia
2021-12-17 13:15 ` Adam Ford
2021-12-17 17:13 ` Nicolas Dufresne [this message]
2021-12-17 17:26 ` Tim Harvey
2021-12-17 17:52 ` Nicolas Dufresne
2021-12-20 3:13 ` Chen-Yu Tsai
2021-12-03 4:34 ` Nicolas Dufresne
2021-12-03 16:46 ` Tim Harvey
2021-12-03 19:37 ` Nicolas Dufresne
2021-12-06 9:20 ` Lucas Stach
2021-12-06 20:46 ` Nicolas Dufresne
2021-11-23 0:06 ` Tim Harvey
2021-11-23 20:10 ` Nicolas Dufresne
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