[Openpvrsgx-devgroup] openpvrsgx-devgroup Digest, Vol 11, Issue 6

[Alif Ilhan]

One more question. Which branch to use? I see there are branches like
letux-pvrsrvkm-59-rc2 etc. I am currently trying with letux-pvrsrvkm
(default). Did I choose the correct branch? I see more fresh activities in
letux-pvrsrvkm-5.9-rc2

On Wed, 14 Oct 2020, 4:00 p.m. , <openpvrsgx-devgroup-request at letux.org>
wrote:

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> Today's Topics:
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>    1. About PowerVR DDKs (Alif Ilhan)
>    2. Re: About PowerVR DDKs (H. Nikolaus Schaller)
>
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> ----------------------------------------------------------------------
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> Message: 1
> Date: Tue, 13 Oct 2020 22:17:58 +0600
> From: Alif Ilhan <alifilhan0 at gmail.com>
> To: openpvrsgx-devgroup at letux.org
> Subject: [Openpvrsgx-devgroup] About PowerVR DDKs
> Message-ID:
>         <
> CAPfpOrZuci7T6S4VU4x8aE0uOJgfWXTisizsKp3fVF2UkmvQGA at mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
> I want to build this kernel with the PVR module for Intel Atom N2600. But
> which DDK should I select? There are a lot of options like Ti, SUN4i,
> Ingenic Generic. But which is appropiate for the SGX545?
>
> Thanks,
> Alif
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> Message: 2
> Date: Tue, 13 Oct 2020 18:38:40 +0200
> From: "H. Nikolaus Schaller" <hns at goldelico.com>
> To: OpenPVRSGX Linux Driver Group <openpvrsgx-devgroup at letux.org>
> Subject: Re: [Openpvrsgx-devgroup] About PowerVR DDKs
> Message-ID: <E7A06234-D3B7-44A6-9839-4DBF27511AB5 at goldelico.com>
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>
> Hi Alif,
>
> > Am 13.10.2020 um 18:17 schrieb Alif Ilhan <alifilhan0 at gmail.com>:
> >
> > I want to build this kernel with the PVR module for Intel Atom N2600.
> But which DDK should I select? There are a lot of options like Ti, SUN4i,
> Ingenic Generic. But which is appropiate for the SGX545?
>
> That is a good question :)
>
> Well, there is no specific option for SGX545 but for different SoC.
> The idea is to make a generic driver handle all SGX5 variants without
> configuration (only through device tree which describes the hardware).
>
> Here is my .config for some OMAP processor:
>
> iMac:master hns$ fgrep SGX .config
> CONFIG_SGX=y
> # CONFIG_PVRSGX_1_9_2188537 is not set
> # CONFIG_PVRSGX_1_9_2253347 is not set
> # CONFIG_PVRSGX_1_10_2359475 is not set
> # CONFIG_PVRSGX_1_13_3341330 is not set
> # CONFIG_PVRSGX_1_14_3699939 is not set
> # CONFIG_PVRSGX_1_14_3759903 is not set
> # CONFIG_PVRSGX_1_14_3841212 is not set
> # CONFIG_PVRSGX_1_15_4564147 is not set
> CONFIG_PVRSGX_1_17_4948957=y
> # CONFIG_SGX_DEBUG is not set
> CONFIG_SGX_DRM=y
> CONFIG_SGX_OMAP=m
> # CONFIG_SGX_GENERIC is not set
> iMac:master hns$
>
> I think your setup should have a CONFIG_SGX_CEDARVIEW for Intel.
> It should become visible if your setup has CONFIG_MATOM=y and CONFIG_SGX=y.
> I hope it has. If not, we have a bug with Makefile and Kconfig.
>
> Please check with drivers/gpu/drm/pvrsgx/Makefile and Kconfig
>
> Next is to choose some DDK version.
>
> iMac:master hns$ find drivers/gpu/drm/pvrsgx/ -name '*cedarview*'
>
> drivers/gpu/drm/pvrsgx//1.13.3341330/eurasia_km/eurasiacon/build/linux2/pc_i686_cedarview_linux
>
> drivers/gpu/drm/pvrsgx//1.13.3341330/eurasia_km/services4/system/cedarview_linux
>
> drivers/gpu/drm/pvrsgx//1.14.3699939/eurasia_km/eurasiacon/build/linux2/pc_i686_cedarview_linux
>
> drivers/gpu/drm/pvrsgx//1.14.3699939/eurasia_km/services4/system/cedarview_linux
>
> drivers/gpu/drm/pvrsgx//1.14.3759903/eurasia_km/eurasiacon/build/linux2/pc_i686_cedarview_linux
>
> drivers/gpu/drm/pvrsgx//1.14.3759903/eurasia_km/services4/system/cedarview_linux
>
> drivers/gpu/drm/pvrsgx//1.14.3841212/eurasia_km/services4/system/cedarview_linux
> iMac:master hns$
>
> shows which DDKs should compile. Best is to start with
> CONFIG_PVRSGX_1_14_3699939.
>
> This will be the first hurdle to jump over...
> Then we will see what problem surfaces next.
>
> BR and thanks,
> Nikolaus
>
>
>
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> End of openpvrsgx-devgroup Digest, Vol 11, Issue 6
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