[Openpvrsgx-devgroup] openpvrsgx-devgroup Digest, Vol 11, Issue 12
H. Nikolaus Schaller
hns at goldelico.com
Sun Oct 18 19:47:21 CEST 2020
> Am 18.10.2020 um 15:03 schrieb Alif Ilhan <alifilhan0 at gmail.com>:
>
> Success! I could build cedarview kernel with choosing DDK version 1.14.
Cool!
> I will tell you tommorow what breaks and what works.
> Thanks,
> Alif
BR,
Nikolaus
>
> On Sun, 18 Oct 2020, 4:00 p.m. , <openpvrsgx-devgroup-request at letux.org <mailto:openpvrsgx-devgroup-request at letux.org>> wrote:
> Send openpvrsgx-devgroup mailing list submissions to
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>
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> or, via email, send a message with subject or body 'help' to
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>
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> When replying, please edit your Subject line so it is more specific
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>
> Today's Topics:
>
> 1. Re: openpvrsgx-devgroup Digest, Vol 11, Issue 9
> (H. Nikolaus Schaller)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sat, 17 Oct 2020 13:06:40 +0200
> From: "H. Nikolaus Schaller" <hns at goldelico.com <mailto:hns at goldelico.com>>
> To: OpenPVRSGX Linux Driver Group <openpvrsgx-devgroup at letux.org <mailto:openpvrsgx-devgroup at letux.org>>
> Cc: Discussions about the Letux Kernel <letux-kernel at openphoenux.org <mailto:letux-kernel at openphoenux.org>>
> Subject: Re: [Openpvrsgx-devgroup] openpvrsgx-devgroup Digest, Vol 11,
> Issue 9
> Message-ID: <FE2B833E-5B8E-4E27-AC4F-A0F820F4A5E8 at goldelico.com <mailto:FE2B833E-5B8E-4E27-AC4F-A0F820F4A5E8 at goldelico.com>>
> Content-Type: text/plain; charset=us-ascii
>
> Hi all,
> just a quick note:
>
> I have managed to also compile the Poulsbo (gma500) driver for ARCH=x86.
> And forward port the CedarView and Poulsbo drivers from DDK 1.14.36999 to DDK 1.17.
> So we can now also choose CONFIG_SGX_1.17.......=y
>
> Well, the driver (not even the kernel) is tested in any way since I have no appropriate
> hardware to do any tests (note: this is not a request to send me hardware but to keep
> yours and help testing and developing :).
>
> All this new code will be pushed in the next days, maybe right after v5.10-rc1.
>
> Do you think announcements are appropriate for LKML or which other mailing lists?
>
> BR and thanks for all support,
> Nikolaus
>
>
> > Am 17.10.2020 um 09:11 schrieb H. Nikolaus Schaller <hns at goldelico.com <mailto:hns at goldelico.com>>:
> >
> > Hi Alif,
> >
> >> Am 17.10.2020 um 05:02 schrieb Alif Ilhan <alifilhan0 at gmail.com <mailto:alifilhan0 at gmail.com>>:
> >>
> >> I don't use any private defconfigs.
> >
> > Ok, so you use the default-default :)
> >
> >> Just want to apply the CFLAGS so that I can optimize for Intel Atom CedarTrail linup. Like -m32 --march=atom --msse3 --mfpmath=sse
> >> etc.
> >
> > Ok.
> >
> >> [ ] 64 bit kernel(I deselect it, so the kernel output is 32 bit)
> >> Processor type and family (Intel Atom)
> >> CONFIG_SGX=y
> >> CONFIG_SGX_1.17.......=y
> >
> > 1.17 doesn't work - there is the cedarview driver component missing. I think we can forward-port it.
> >
> >> CONFIG_SGX_DRM=y
> >> CONFIG_SGX_CEDARVIEW=y
> >
> > ok.
> >
> >>
> >> This gives me this output again:-
> >>
> >>
> >> alif at alif-Latitude-E5470:/media/alif/New-Volume/Android-Development/linux_openpvrsgx$
> >> make ARCH=i386 "KCFLAGS=-m32 -march=atom -mtune=atom -msse3
> >> -mfpmath=sse" -j4
> >> HOSTCC scripts/kconfig/conf.o
> >> HOSTLD scripts/kconfig/conf
> >> scripts/kconfig/conf --syncconfig Kconfig
> >>
> >> *** Error during sync of the configuration.
> >
> > This comes from scripts/kconfig/conf.c
> >
> > https://elixir.bootlin.com/linux/latest/source/scripts/kconfig/conf.c#L722 <https://elixir.bootlin.com/linux/latest/source/scripts/kconfig/conf.c#L722>
> >
> > Most likely it is a file permission problem when this code tries to write
> > the results of you config answers. Did you try to make clean?
> >
> > What happens if you do
> >
> > ls -ld .config .tmpconfig .tmpconfig.h include include/generated include/generated/autoconf.h include/config include/config/auto.conf
> >
> > For me it says:
> >
> > iMac:master hns$ ls -ld .config .tmpconfig .tmpconfig.h include include/generated include/generated/autoconf.h include/config include/config/auto.conf
> > ls: .tmpconfig: No such file or directory
> > ls: .tmpconfig.h: No such file or directory
> > -rw-r--r-- 1 hns staff 188405 16 Okt 22:40 .config
> > drwxr-xr-x 31 hns staff 1054 12 Okt 18:25 include
> > drwxr-xr-x 669 hns staff 35700 16 Okt 22:55 include/config
> > -rw-r--r-- 1 hns staff 55207 16 Okt 22:41 include/config/auto.conf
> > drwxr-xr-x 3 hns staff 476 16 Okt 22:55 include/generated
> > -rw-r--r-- 1 hns staff 78483 16 Okt 22:41 include/generated/autoconf.h
> > iMac:master hns$
> >
> > There also may be an influcence by environment variable KCONFIG_AUTOHEADER.
> >
> > BR,
> > Nikolaus
> >
> >>
> >> make[2]: *** [scripts/kconfig/Makefile:75: syncconfig] Error 1
> >> make[1]: *** [Makefile:567: syncconfig] Error 2
> >> make: *** [Makefile:677: include/config/auto.conf.cmd] Error 2
> >> make: *** Deleting file 'include/config/auto.conf.cmd'
> >>
> >> Thanks,
> >>
> >> Alif
> >> On Sat, 17 Oct 2020, 2:41 a.m. , <openpvrsgx-devgroup-request at letux.org <mailto:openpvrsgx-devgroup-request at letux.org>> wrote:
> >> Send openpvrsgx-devgroup mailing list submissions to
> >> openpvrsgx-devgroup at letux.org <mailto:openpvrsgx-devgroup at letux.org>
> >>
> >> To subscribe or unsubscribe via the World Wide Web, visit
> >> http://lists.goldelico.com/mailman/listinfo.cgi/openpvrsgx-devgroup <http://lists.goldelico.com/mailman/listinfo.cgi/openpvrsgx-devgroup>
> >> or, via email, send a message with subject or body 'help' to
> >> openpvrsgx-devgroup-request at letux.org <mailto:openpvrsgx-devgroup-request at letux.org>
> >>
> >> You can reach the person managing the list at
> >> openpvrsgx-devgroup-owner at letux.org <mailto:openpvrsgx-devgroup-owner at letux.org>
> >>
> >> When replying, please edit your Subject line so it is more specific
> >> than "Re: Contents of openpvrsgx-devgroup digest..."
> >>
> >>
> >> Today's Topics:
> >>
> >> 1. Re: openpvrsgx-devgroup Digest, Vol 11, Issue 8 (Alif Ilhan)
> >> 2. Re: openpvrsgx-devgroup Digest, Vol 11, Issue 8 - build for
> >> x86 / cedarview (H. Nikolaus Schaller)
> >>
> >>
> >> ----------------------------------------------------------------------
> >>
> >> Message: 1
> >> Date: Fri, 16 Oct 2020 16:03:13 +0600
> >> From: Alif Ilhan <alifilhan0 at gmail.com <mailto:alifilhan0 at gmail.com>>
> >> To: openpvrsgx-devgroup at letux.org <mailto:openpvrsgx-devgroup at letux.org>
> >> Subject: Re: [Openpvrsgx-devgroup] openpvrsgx-devgroup Digest, Vol 11,
> >> Issue 8
> >> Message-ID:
> >> <CAPfpOrZ+BE6UxxPyOaUmGY4EPrtVym2OX5MyD7jAaq9=-5SbSA at mail.gmail.com <mailto:5SbSA at mail.gmail.com>>
> >> Content-Type: text/plain; charset="utf-8"
> >>
> >> Okay thank you. I will check out the code in my PC today and build it. Then
> >> I will inform the bugs.
> >> Thanks for the info
> >> Alif
> >>
> >> On Fri, 16 Oct 2020, 4:00 p.m. , <openpvrsgx-devgroup-request at letux.org <mailto:openpvrsgx-devgroup-request at letux.org>>
> >> wrote:
> >>
> >>> Send openpvrsgx-devgroup mailing list submissions to
> >>> openpvrsgx-devgroup at letux.org <mailto:openpvrsgx-devgroup at letux.org>
> >>>
> >>> To subscribe or unsubscribe via the World Wide Web, visit
> >>>
> >>> http://lists.goldelico.com/mailman/listinfo.cgi/openpvrsgx-devgroup <http://lists.goldelico.com/mailman/listinfo.cgi/openpvrsgx-devgroup>
> >>> or, via email, send a message with subject or body 'help' to
> >>> openpvrsgx-devgroup-request at letux.org <mailto:openpvrsgx-devgroup-request at letux.org>
> >>>
> >>> You can reach the person managing the list at
> >>> openpvrsgx-devgroup-owner at letux.org <mailto:openpvrsgx-devgroup-owner at letux.org>
> >>>
> >>> When replying, please edit your Subject line so it is more specific
> >>> than "Re: Contents of openpvrsgx-devgroup digest..."
> >>>
> >>>
> >>> Today's Topics:
> >>>
> >>> 1. Re: openpvrsgx-devgroup Digest, Vol 11, Issue 6
> >>> (H. Nikolaus Schaller)
> >>>
> >>>
> >>> ----------------------------------------------------------------------
> >>>
> >>> Message: 1
> >>> Date: Thu, 15 Oct 2020 16:01:06 +0200
> >>> From: "H. Nikolaus Schaller" <hns at goldelico.com <mailto:hns at goldelico.com>>
> >>> To: OpenPVRSGX Linux Driver Group <openpvrsgx-devgroup at letux.org <mailto:openpvrsgx-devgroup at letux.org>>
> >>> Subject: Re: [Openpvrsgx-devgroup] openpvrsgx-devgroup Digest, Vol 11,
> >>> Issue 6
> >>> Message-ID: <3027F737-11CE-464D-A61E-A3C05BB5D62F at goldelico.com <mailto:3027F737-11CE-464D-A61E-A3C05BB5D62F at goldelico.com>>
> >>> Content-Type: text/plain; charset=us-ascii
> >>>
> >>> Hi Alif,
> >>>
> >>>> Am 14.10.2020 um 17:54 schrieb Alif Ilhan <alifilhan0 at gmail.com <mailto:alifilhan0 at gmail.com>>:
> >>>>
> >>>> 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
> >>>
> >>> yes, the letux-pvrsrvkm branch is a little outdated (seems to be v5.6).
> >>>
> >>> letux-pvrsrvkm-5.9-rc2 is the latest one.
> >>>
> >>> Unfortunately this is a little confusing. The reason is that there are
> >>> several
> >>> feature branches which are merged into a single "complete" kernel. These
> >>> feature-branches are rebased every now and then, so that we can remove
> >>> patches
> >>> which have arrived upstream or can follow API changes.
> >>>
> >>> For the Letux project this is done almost automatically every week so there
> >>> would be a letux-pvrsrvkm-5.9.0.
> >>>
> >>> But this way of rapid rebase+merge gave a non-linear history between e.g.
> >>> letux-pvrsrvkm-5.9-rc1 and letux-pvrsrvkm-5.9-rc2. This makes detection of
> >>> changes and bisects too difficult.
> >>>
> >>> So the current work-around is to rebase only once every major release. This
> >>> will be letux-pvrsrvkm-5.10-rc1 or letux-pvrsrvkm-5.10-rc2 in ca. 2-3
> >>> weeks.
> >>>
> >>> Until then please try letux-pvrsrvkm-5.9-rc2 which should also be the
> >>> (current)
> >>> basis if you want to submit patches and fixes to this list.
> >>>
> >>> If you need some bug fixes from upstream kernel (it is still a -rc) and try
> >>> with latest linus/master, please do:
> >>>
> >>> git checkout letux-pvrsrvkm-5.9-rc2
> >>> git merge v5.9
> >>>
> >>> If you fix something, please commit on top of this and do a git-format for
> >>> your patches. I can then integrate them into the tree for everyones
> >>> benefit.
> >>>
> >>> BR and thanks,
> >>> Nikolaus
> >>>
> >>>
> >>>>
> >>>> On Wed, 14 Oct 2020, 4:00 p.m. , <openpvrsgx-devgroup-request at letux.org <mailto:openpvrsgx-devgroup-request at letux.org>>
> >>> wrote:
> >>>> Send openpvrsgx-devgroup mailing list submissions to
> >>>> openpvrsgx-devgroup at letux.org <mailto:openpvrsgx-devgroup at letux.org>
> >>>>
> >>>> To subscribe or unsubscribe via the World Wide Web, visit
> >>>>
> >>> http://lists.goldelico.com/mailman/listinfo.cgi/openpvrsgx-devgroup <http://lists.goldelico.com/mailman/listinfo.cgi/openpvrsgx-devgroup>
> >>>> or, via email, send a message with subject or body 'help' to
> >>>> openpvrsgx-devgroup-request at letux.org <mailto:openpvrsgx-devgroup-request at letux.org>
> >>>>
> >>>> You can reach the person managing the list at
> >>>> openpvrsgx-devgroup-owner at letux.org <mailto:openpvrsgx-devgroup-owner at letux.org>
> >>>>
> >>>> When replying, please edit your Subject line so it is more specific
> >>>> than "Re: Contents of openpvrsgx-devgroup digest..."
> >>>>
> >>>>
> >>>> Today's Topics:
> >>>>
> >>>> 1. About PowerVR DDKs (Alif Ilhan)
> >>>> 2. Re: About PowerVR DDKs (H. Nikolaus Schaller)
> >>>>
> >>>>
> >>>> ----------------------------------------------------------------------
> >>>>
> >>>> Message: 1
> >>>> Date: Tue, 13 Oct 2020 22:17:58 +0600
> >>>> From: Alif Ilhan <alifilhan0 at gmail.com <mailto:alifilhan0 at gmail.com>>
> >>>> To: openpvrsgx-devgroup at letux.org <mailto:openpvrsgx-devgroup at letux.org>
> >>>> Subject: [Openpvrsgx-devgroup] About PowerVR DDKs
> >>>> Message-ID:
> >>>> <
> >>> CAPfpOrZuci7T6S4VU4x8aE0uOJgfWXTisizsKp3fVF2UkmvQGA at mail.gmail.com <mailto: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
> >>>> -------------- next part --------------
> >>>> An HTML attachment was scrubbed...
> >>>> URL: <
> >>> http://lists.goldelico.com/pipermail/openpvrsgx-devgroup/attachments/20201013/23a1c079/attachment.html <http://lists.goldelico.com/pipermail/openpvrsgx-devgroup/attachments/20201013/23a1c079/attachment.html>
> >>>>
> >>>>
> >>>> ------------------------------
> >>>>
> >>>> Message: 2
> >>>> Date: Tue, 13 Oct 2020 18:38:40 +0200
> >>>> From: "H. Nikolaus Schaller" <hns at goldelico.com <mailto:hns at goldelico.com>>
> >>>> To: OpenPVRSGX Linux Driver Group <openpvrsgx-devgroup at letux.org <mailto:openpvrsgx-devgroup at letux.org>>
> >>>> Subject: Re: [Openpvrsgx-devgroup] About PowerVR DDKs
> >>>> Message-ID: <E7A06234-D3B7-44A6-9839-4DBF27511AB5 at goldelico.com <mailto:E7A06234-D3B7-44A6-9839-4DBF27511AB5 at goldelico.com>>
> >>>> Content-Type: text/plain; charset=us-ascii
> >>>>
> >>>> Hi Alif,
> >>>>
> >>>>> Am 13.10.2020 um 18:17 schrieb Alif Ilhan <alifilhan0 at gmail.com <mailto: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
> >>>>
> >>>>
> >>>>
> >>>> ------------------------------
> >>>>
> >>>> Subject: Digest Footer
> >>>>
> >>>> _______________________________________________
> >>>> https://github.com/openpvrsgx-devgroup/linux_openpvrsgx <https://github.com/openpvrsgx-devgroup/linux_openpvrsgx>
> >>>> openpvrsgx-devgroup mailing list
> >>>> openpvrsgx-devgroup at letux.org <mailto:openpvrsgx-devgroup at letux.org>
> >>>> http://lists.goldelico.com/mailman/listinfo.cgi/openpvrsgx-devgroup <http://lists.goldelico.com/mailman/listinfo.cgi/openpvrsgx-devgroup>
> >>>>
> >>>>
> >>>> ------------------------------
> >>>>
> >>>> End of openpvrsgx-devgroup Digest, Vol 11, Issue 6
> >>>> **************************************************
> >>>> _______________________________________________
> >>>> https://github.com/openpvrsgx-devgroup/linux_openpvrsgx <https://github.com/openpvrsgx-devgroup/linux_openpvrsgx>
> >>>> openpvrsgx-devgroup mailing list
> >>>> openpvrsgx-devgroup at letux.org <mailto:openpvrsgx-devgroup at letux.org>
> >>>> https://lists.goldelico.com/mailman/listinfo.cgi/openpvrsgx-devgroup <https://lists.goldelico.com/mailman/listinfo.cgi/openpvrsgx-devgroup>
> >>>
> >>>
> >>>
> >>> ------------------------------
> >>>
> >>> Subject: Digest Footer
> >>>
> >>> _______________________________________________
> >>> https://github.com/openpvrsgx-devgroup/linux_openpvrsgx <https://github.com/openpvrsgx-devgroup/linux_openpvrsgx>
> >>> openpvrsgx-devgroup mailing list
> >>> openpvrsgx-devgroup at letux.org <mailto:openpvrsgx-devgroup at letux.org>
> >>> http://lists.goldelico.com/mailman/listinfo.cgi/openpvrsgx-devgroup <http://lists.goldelico.com/mailman/listinfo.cgi/openpvrsgx-devgroup>
> >>>
> >>>
> >>> ------------------------------
> >>>
> >>> End of openpvrsgx-devgroup Digest, Vol 11, Issue 8
> >>> **************************************************
> >>>
> >> -------------- next part --------------
> >> An HTML attachment was scrubbed...
> >> URL: <http://lists.goldelico.com/pipermail/openpvrsgx-devgroup/attachments/20201016/4ac9b73a/attachment-0001.htm <http://lists.goldelico.com/pipermail/openpvrsgx-devgroup/attachments/20201016/4ac9b73a/attachment-0001.htm>>
> >>
> >> ------------------------------
> >>
> >> Message: 2
> >> Date: Fri, 16 Oct 2020 22:41:17 +0200
> >> From: "H. Nikolaus Schaller" <hns at goldelico.com <mailto:hns at goldelico.com>>
> >> To: OpenPVRSGX Linux Driver Group <openpvrsgx-devgroup at letux.org <mailto:openpvrsgx-devgroup at letux.org>>
> >> Cc: Discussions about the Letux Kernel <letux-kernel at openphoenux.org <mailto:letux-kernel at openphoenux.org>>
> >> Subject: Re: [Openpvrsgx-devgroup] openpvrsgx-devgroup Digest, Vol 11,
> >> Issue 8 - build for x86 / cedarview
> >> Message-ID: <3F12B991-4C09-4B95-B9C3-5B92A28F8E8A at goldelico.com <mailto:3F12B991-4C09-4B95-B9C3-5B92A28F8E8A at goldelico.com>>
> >> Content-Type: text/plain; charset="us-ascii"
> >>
> >> Hi Alif,
> >>
> >>> Am 16.10.2020 um 12:03 schrieb Alif Ilhan <alifilhan0 at gmail.com <mailto:alifilhan0 at gmail.com>>:
> >>>
> >>> Okay thank you. I will check out the code in my PC today and build it. Then I will inform the bugs.
> >>> Thanks for the info
> >>> Alif
> >>
> >> I have extended my cross-compile setup so that I can compile for "ARCH=x86".
> >> You may wonder why I need to cross compile for intel, but my build host
> >> machine runs macOS so I need a cross-compiler for intel.
> >>
> >> It turned out that the code needs some minor tweaks so that it compiles
> >> for x86. I have attached some patches to the letux-pvrsrvkm-5.9-rc2 branch.
> >>
> >> BTW: which defconfig do you use? Do you use some from arch/x86/configs
> >> or a private one?
> >>
> >> For my build tests I have started with a copy of the i386_defconfig
> >> (expanded) and then changed:
> >>
> >> @@ -297,7 +297,7 @@ CONFIG_SCHED_OMIT_FRAME_POINTER=y
> >> # CONFIG_M586 is not set
> >> # CONFIG_M586TSC is not set
> >> # CONFIG_M586MMX is not set
> >> -CONFIG_M686=y
> >> +# CONFIG_M686 is not set
> >> # CONFIG_MPENTIUMII is not set
> >> # CONFIG_MPENTIUMIII is not set
> >> # CONFIG_MPENTIUMM is not set
> >> @@ -316,7 +316,7 @@ CONFIG_M686=y
> >> # CONFIG_MVIAC3_2 is not set
> >> # CONFIG_MVIAC7 is not set
> >> # CONFIG_MCORE2 is not set
> >> -# CONFIG_MATOM is not set
> >> +CONFIG_MATOM=y
> >> CONFIG_X86_GENERIC=y
> >> CONFIG_X86_INTERNODE_CACHE_SHIFT=6
> >> CONFIG_X86_L1_CACHE_SHIFT=6
> >>
> >> To enable building the SGX kernel module:
> >>
> >> @@ -2849,6 +2849,7 @@ CONFIG_DRM_FBDEV_EMULATION=y
> >> CONFIG_DRM_FBDEV_OVERALLOC=100
> >> # CONFIG_DRM_LOAD_EDID_FIRMWARE is not set
> >> # CONFIG_DRM_DP_CEC is not set
> >> +CONFIG_DRM_VM=y
> >>
> >> #
> >> # I2C encoder or helper chips
> >> @@ -2910,8 +2911,29 @@ CONFIG_DRM_PANEL_BRIDGE=y
> >> # CONFIG_DRM_CIRRUS_QEMU is not set
> >> # CONFIG_DRM_GM12U320 is not set
> >> # CONFIG_DRM_VBOXVIDEO is not set
> >> -# CONFIG_SGX is not set
> >> -# CONFIG_DRM_LEGACY is not set
> >> +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=y
> >> +# 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 is not set
> >> +# CONFIG_SGX_DEBUG is not set
> >> +CONFIG_SGX_DRM=y
> >> +CONFIG_SGX_CEDARVIEW=m
> >> +# CONFIG_SGX_POULSBO is not set
> >> +# CONFIG_SGX_GENERIC is not set
> >> +CONFIG_DRM_LEGACY=y
> >> +# CONFIG_DRM_TDFX is not set
> >> +# CONFIG_DRM_R128 is not set
> >> +# CONFIG_DRM_I810 is not set
> >> +# CONFIG_DRM_MGA is not set
> >> +# CONFIG_DRM_SIS is not set
> >> +# CONFIG_DRM_VIA is not set
> >> +# CONFIG_DRM_SAVAGE is not set
> >> CONFIG_DRM_PANEL_ORIENTATION_QUIRKS=y
> >>
> >> #
> >>
> >> With these patches and settings I can successfully compile a kernel and
> >> the resulting pvrsrvkm.ko looks like this:
> >>
> >> iMac:master hns$ ls -l drivers/gpu/drm/pvrsgx/1.14.3699939/eurasia_km/pvrsrvkm_gma3600_sgx545_10141.ko
> >> -rw-r--r-- 1 hns staff 5121748 16 Okt 20:10 drivers/gpu/drm/pvrsgx/1.14.3699939/eurasia_km/pvrsrvkm_gma3600_sgx545_10141.ko
> >> iMac:master hns$ file drivers/gpu/drm/pvrsgx/1.14.3699939/eurasia_km/pvrsrvkm_gma3600_sgx545_10141.ko
> >> drivers/gpu/drm/pvrsgx/1.14.3699939/eurasia_km/pvrsrvkm_gma3600_sgx545_10141.ko: ELF 32-bit LSB relocatable, Intel 80386, version 1 (SYSV), not stripped
> >> iMac:master hns$
> >>
> >> Since I have no matching hardware I can't check what needs to be done
> >> to make the pvrsrvkm load during boot. On ARM or MIPS it is requested through
> >> the device tree.
> >>
> >> Well, for first tests you can do a modprobe and see if the kernel panics :)
> >>
> >> BR and thanks,
> >> Nikolaus
> >>
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