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From: "Deucher, Alexander" <Alexander.Deucher@amd.com>
To: Christian Zigotzky <chzigotzky@xenosoft.de>, "gustavoars@kernel.org"
 <gustavoars@kernel.org>, "amd-gfx@lists.freedesktop.org"
 <amd-gfx@lists.freedesktop.org>
Subject: RE: Radeon NI: GIT kernel with the nislands_smc commit doesn't boot
 on a Freescale P5040 board and P.A.Semi Nemo board
Thread-Topic: Radeon NI: GIT kernel with the nislands_smc commit doesn't boot
 on a Freescale P5040 board and P.A.Semi Nemo board
Thread-Index: AQHXPbiAnWSiVTTegkyJSA5KmHWDZ6rNLjVg
Date: Fri, 30 Apr 2021 15:26:45 +0000
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Cc: Darren Stevens <darren@stevens-zone.net>, "R.T.Dickinson" <rtd2@xtra.co.nz>,
 "Gustavo A. R. Silva" <gustavo@embeddedor.com>,
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[AMD Public Use]

+ Gustavo, amd-gfx

> -----Original Message-----
> From: Christian Zigotzky <chzigotzky@xenosoft.de>
> Sent: Friday, April 30, 2021 8:00 AM
> To: gustavoars@kernel.org; Deucher, Alexander=20
> <Alexander.Deucher@amd.com>
> Cc: R.T.Dickinson <rtd2@xtra.co.nz>; Darren Stevens <darren@stevens-=20
> zone.net>; mad skateman <madskateman@gmail.com>; linuxppc-dev=20
> <linuxppc-dev@lists.ozlabs.org>; Olof Johansson <olof@lixom.net>;=20
> Maling list - DRI developers <dri-devel@lists.freedesktop.org>; Michel=20
> D=E4nzer <michel@daenzer.net>; Christian Zigotzky <info@xenosoft.de>
> Subject: Radeon NI: GIT kernel with the nislands_smc commit doesn't=20
> boot on a Freescale P5040 board and P.A.Semi Nemo board
>=20
> Hello,
>=20
> The Nemo board (A-EON AmigaOne X1000) [1] and the FSL P5040 Cyrus+=20
> board (A-EON AmigaOne X5000) [2] with installed AMD Radeon HD6970 NI=20
> graphics cards (Cayman XT) [3] don't boot with the latest git kernel=20
> anymore after the commit "drm/radeon/nislands_smc.h: Replace=20
> one-element array with flexible-array member in struct NISLANDS_SMC_SWSTA=
TE branch" [4].
> This git kernel boots in a virtual e5500 QEMU machine with a VirtIO-GPU [=
5].
>=20
> I bisected today [6].
>=20
> Result: drm/radeon/nislands_smc.h: Replace one-element array with=20
> flexible-array member in struct NISLANDS_SMC_SWSTATE branch
> (434fb1e7444a2efc3a4ebd950c7f771ebfcffa31) [4] is the first bad commit.
>=20
> I was able to revert this commit [7] and after a new compiling, the=20
> kernel boots without any problems on my AmigaOnes.
>=20
> After that I created a patch for reverting this commit for new git test k=
ernels.
> [3]
>=20
> The kernel compiles and boots with this patch on my AmigaOnes. Please=20
> find attached the kernel config files.
>=20
> Please check the first bad commit.
>=20
> Thanks,
> Christian
>=20
> [1]
> https://nam11.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fen.
> wikipedia.org%2Fwiki%2FAmigaOne_X1000&amp;data=3D04%7C01%7Calexand
> er.deucher%40amd.com%7C0622549383fb4320346b08d90bcf7be1%7C3dd89
> 61fe4884e608e11a82d994e183d%7C0%7C0%7C637553808670161651%7CUnkn
> own%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik
> 1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=3DPNSrApUdMrku20hH7dEKlJJ
> TBi7Qp5JOkqpA4MvKqdE%3D&amp;reserved=3D0
> [2]
> https://nam11.safelinks.protection.outlook.com/?url=3Dhttp%3A%2F%2Fwiki.
> a miga.org%2Findex.php%3Ftitle%3DX5000&amp;data=3D04%7C01%7Calexander
> .deucher%40amd.com%7C0622549383fb4320346b08d90bcf7be1%7C3dd8961f
> e4884e608e11a82d994e183d%7C0%7C0%7C637553808670161651%7CUnknow
> n%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1ha
> WwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=3DB8Uvhs25%2FP3RfnL1AgICN3Y4
> CEXeCE1yIoi3vvwvGto%3D&amp;reserved=3D0
> [3]
> https://nam11.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fforu
> m.hyperion-
> entertainment.com%2Fviewtopic.php%3Ff%3D35%26t%3D4377&amp;data=3D
> 04%7C01%7Calexander.deucher%40amd.com%7C0622549383fb4320346b08d
> 90bcf7be1%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C63755380
> 8670161651%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIj
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> Tvg3%2BZMPLCgR1fs%2BN2X9MIfLXLW67MAM2Qsk%3D&amp;reserved=3D0
> [4]
> https://nam11.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fgit.
> k ernel.org%2Fpub%2Fscm%2Flinux%2Fkernel%2Fgit%2Ftorvalds%2Flinux.git%
> 2Fcommit%2F%3Fid%3D434fb1e7444a2efc3a4ebd950c7f771ebfcffa31&amp;d
> ata=3D04%7C01%7Calexander.deucher%40amd.com%7C0622549383fb4320346
> b08d90bcf7be1%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C6375
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> d=3D0
> [5] qemu-system-ppc64 -M ppce500 -cpu e5500 -m 1024 -kernel uImage -=20
> drive format=3Draw,file=3DMintPPC32-X5000.img,index=3D0,if=3Dvirtio -netd=
ev
> user,id=3Dmynet0 -device virtio-net-pci,netdev=3Dmynet0 -append "rw=20
> root=3D/dev/vda" -device virtio-vga -usb -device usb-ehci,id=3Dehci=20
> -device usb- tablet -device virtio-keyboard-pci -smp 4 -vnc :1 [6]=20
> https://nam11.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fforu
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> A3bDEFas0%2Fk2vMWsl2l0nuhS2ecjZgSBLc%2Bs4%3D&amp;reserved=3D0
> [7] git revert 434fb1e7444a2efc3a4ebd950c7f771ebfcffa3

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From: "Deucher, Alexander" <Alexander.Deucher@amd.com>
To: Christian Zigotzky <chzigotzky@xenosoft.de>, "gustavoars@kernel.org"
 <gustavoars@kernel.org>, "amd-gfx@lists.freedesktop.org"
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Subject: RE: Radeon NI: GIT kernel with the nislands_smc commit doesn't boot
 on a Freescale P5040 board and P.A.Semi Nemo board
Thread-Topic: Radeon NI: GIT kernel with the nislands_smc commit doesn't boot
 on a Freescale P5040 board and P.A.Semi Nemo board
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Date: Fri, 30 Apr 2021 15:26:45 +0000
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Cc: Darren Stevens <darren@stevens-zone.net>, "R.T.Dickinson" <rtd2@xtra.co.nz>,
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[AMD Public Use]

+ Gustavo, amd-gfx

> -----Original Message-----
> From: Christian Zigotzky <chzigotzky@xenosoft.de>
> Sent: Friday, April 30, 2021 8:00 AM
> To: gustavoars@kernel.org; Deucher, Alexander =

> <Alexander.Deucher@amd.com>
> Cc: R.T.Dickinson <rtd2@xtra.co.nz>; Darren Stevens <darren@stevens- =

> zone.net>; mad skateman <madskateman@gmail.com>; linuxppc-dev =

> <linuxppc-dev@lists.ozlabs.org>; Olof Johansson <olof@lixom.net>; =

> Maling list - DRI developers <dri-devel@lists.freedesktop.org>; Michel =

> D=E4nzer <michel@daenzer.net>; Christian Zigotzky <info@xenosoft.de>
> Subject: Radeon NI: GIT kernel with the nislands_smc commit doesn't =

> boot on a Freescale P5040 board and P.A.Semi Nemo board
> =

> Hello,
> =

> The Nemo board (A-EON AmigaOne X1000) [1] and the FSL P5040 Cyrus+ =

> board (A-EON AmigaOne X5000) [2] with installed AMD Radeon HD6970 NI =

> graphics cards (Cayman XT) [3] don't boot with the latest git kernel =

> anymore after the commit "drm/radeon/nislands_smc.h: Replace =

> one-element array with flexible-array member in struct NISLANDS_SMC_SWSTA=
TE branch" [4].
> This git kernel boots in a virtual e5500 QEMU machine with a VirtIO-GPU [=
5].
> =

> I bisected today [6].
> =

> Result: drm/radeon/nislands_smc.h: Replace one-element array with =

> flexible-array member in struct NISLANDS_SMC_SWSTATE branch
> (434fb1e7444a2efc3a4ebd950c7f771ebfcffa31) [4] is the first bad commit.
> =

> I was able to revert this commit [7] and after a new compiling, the =

> kernel boots without any problems on my AmigaOnes.
> =

> After that I created a patch for reverting this commit for new git test k=
ernels.
> [3]
> =

> The kernel compiles and boots with this patch on my AmigaOnes. Please =

> find attached the kernel config files.
> =

> Please check the first bad commit.
> =

> Thanks,
> Christian
> =

> [1]
> https://nam11.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fen.
> wikipedia.org%2Fwiki%2FAmigaOne_X1000&amp;data=3D04%7C01%7Calexand
> er.deucher%40amd.com%7C0622549383fb4320346b08d90bcf7be1%7C3dd89
> 61fe4884e608e11a82d994e183d%7C0%7C0%7C637553808670161651%7CUnkn
> own%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik
> 1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=3DPNSrApUdMrku20hH7dEKlJJ
> TBi7Qp5JOkqpA4MvKqdE%3D&amp;reserved=3D0
> [2]
> https://nam11.safelinks.protection.outlook.com/?url=3Dhttp%3A%2F%2Fwiki.
> a miga.org%2Findex.php%3Ftitle%3DX5000&amp;data=3D04%7C01%7Calexander
> .deucher%40amd.com%7C0622549383fb4320346b08d90bcf7be1%7C3dd8961f
> e4884e608e11a82d994e183d%7C0%7C0%7C637553808670161651%7CUnknow
> n%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1ha
> WwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=3DB8Uvhs25%2FP3RfnL1AgICN3Y4
> CEXeCE1yIoi3vvwvGto%3D&amp;reserved=3D0
> [3]
> https://nam11.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fforu
> m.hyperion-
> entertainment.com%2Fviewtopic.php%3Ff%3D35%26t%3D4377&amp;data=3D
> 04%7C01%7Calexander.deucher%40amd.com%7C0622549383fb4320346b08d
> 90bcf7be1%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C63755380
> 8670161651%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIj
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> Tvg3%2BZMPLCgR1fs%2BN2X9MIfLXLW67MAM2Qsk%3D&amp;reserved=3D0
> [4]
> https://nam11.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fgit.
> k ernel.org%2Fpub%2Fscm%2Flinux%2Fkernel%2Fgit%2Ftorvalds%2Flinux.git%
> 2Fcommit%2F%3Fid%3D434fb1e7444a2efc3a4ebd950c7f771ebfcffa31&amp;d
> ata=3D04%7C01%7Calexander.deucher%40amd.com%7C0622549383fb4320346
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> d=3D0
> [5] qemu-system-ppc64 -M ppce500 -cpu e5500 -m 1024 -kernel uImage - =

> drive format=3Draw,file=3DMintPPC32-X5000.img,index=3D0,if=3Dvirtio -netd=
ev
> user,id=3Dmynet0 -device virtio-net-pci,netdev=3Dmynet0 -append "rw =

> root=3D/dev/vda" -device virtio-vga -usb -device usb-ehci,id=3Dehci =

> -device usb- tablet -device virtio-keyboard-pci -smp 4 -vnc :1 [6] =

> https://nam11.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fforu
> m.hyperion-
> entertainment.com%2Fviewtopic.php%3Fp%3D53074%23p53074&amp;data
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> d90bcf7be1%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C6375538
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> A3bDEFas0%2Fk2vMWsl2l0nuhS2ecjZgSBLc%2Bs4%3D&amp;reserved=3D0
> [7] git revert 434fb1e7444a2efc3a4ebd950c7f771ebfcffa3
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From: "Deucher, Alexander" <Alexander.Deucher@amd.com>
To: Christian Zigotzky <chzigotzky@xenosoft.de>, "gustavoars@kernel.org"
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Subject: RE: Radeon NI: GIT kernel with the nislands_smc commit doesn't boot
 on a Freescale P5040 board and P.A.Semi Nemo board
Thread-Topic: Radeon NI: GIT kernel with the nislands_smc commit doesn't boot
 on a Freescale P5040 board and P.A.Semi Nemo board
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[AMD Public Use]

+ Gustavo, amd-gfx

> -----Original Message-----
> From: Christian Zigotzky <chzigotzky@xenosoft.de>
> Sent: Friday, April 30, 2021 8:00 AM
> To: gustavoars@kernel.org; Deucher, Alexander =

> <Alexander.Deucher@amd.com>
> Cc: R.T.Dickinson <rtd2@xtra.co.nz>; Darren Stevens <darren@stevens- =

> zone.net>; mad skateman <madskateman@gmail.com>; linuxppc-dev =

> <linuxppc-dev@lists.ozlabs.org>; Olof Johansson <olof@lixom.net>; =

> Maling list - DRI developers <dri-devel@lists.freedesktop.org>; Michel =

> D=E4nzer <michel@daenzer.net>; Christian Zigotzky <info@xenosoft.de>
> Subject: Radeon NI: GIT kernel with the nislands_smc commit doesn't =

> boot on a Freescale P5040 board and P.A.Semi Nemo board
> =

> Hello,
> =

> The Nemo board (A-EON AmigaOne X1000) [1] and the FSL P5040 Cyrus+ =

> board (A-EON AmigaOne X5000) [2] with installed AMD Radeon HD6970 NI =

> graphics cards (Cayman XT) [3] don't boot with the latest git kernel =

> anymore after the commit "drm/radeon/nislands_smc.h: Replace =

> one-element array with flexible-array member in struct NISLANDS_SMC_SWSTA=
TE branch" [4].
> This git kernel boots in a virtual e5500 QEMU machine with a VirtIO-GPU [=
5].
> =

> I bisected today [6].
> =

> Result: drm/radeon/nislands_smc.h: Replace one-element array with =

> flexible-array member in struct NISLANDS_SMC_SWSTATE branch
> (434fb1e7444a2efc3a4ebd950c7f771ebfcffa31) [4] is the first bad commit.
> =

> I was able to revert this commit [7] and after a new compiling, the =

> kernel boots without any problems on my AmigaOnes.
> =

> After that I created a patch for reverting this commit for new git test k=
ernels.
> [3]
> =

> The kernel compiles and boots with this patch on my AmigaOnes. Please =

> find attached the kernel config files.
> =

> Please check the first bad commit.
> =

> Thanks,
> Christian
> =

> [1]
> https://nam11.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fen.
> wikipedia.org%2Fwiki%2FAmigaOne_X1000&amp;data=3D04%7C01%7Calexand
> er.deucher%40amd.com%7C0622549383fb4320346b08d90bcf7be1%7C3dd89
> 61fe4884e608e11a82d994e183d%7C0%7C0%7C637553808670161651%7CUnkn
> own%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik
> 1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=3DPNSrApUdMrku20hH7dEKlJJ
> TBi7Qp5JOkqpA4MvKqdE%3D&amp;reserved=3D0
> [2]
> https://nam11.safelinks.protection.outlook.com/?url=3Dhttp%3A%2F%2Fwiki.
> a miga.org%2Findex.php%3Ftitle%3DX5000&amp;data=3D04%7C01%7Calexander
> .deucher%40amd.com%7C0622549383fb4320346b08d90bcf7be1%7C3dd8961f
> e4884e608e11a82d994e183d%7C0%7C0%7C637553808670161651%7CUnknow
> n%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1ha
> WwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=3DB8Uvhs25%2FP3RfnL1AgICN3Y4
> CEXeCE1yIoi3vvwvGto%3D&amp;reserved=3D0
> [3]
> https://nam11.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fforu
> m.hyperion-
> entertainment.com%2Fviewtopic.php%3Ff%3D35%26t%3D4377&amp;data=3D
> 04%7C01%7Calexander.deucher%40amd.com%7C0622549383fb4320346b08d
> 90bcf7be1%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C63755380
> 8670161651%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIj
> oiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=3DTokXplD
> Tvg3%2BZMPLCgR1fs%2BN2X9MIfLXLW67MAM2Qsk%3D&amp;reserved=3D0
> [4]
> https://nam11.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fgit.
> k ernel.org%2Fpub%2Fscm%2Flinux%2Fkernel%2Fgit%2Ftorvalds%2Flinux.git%
> 2Fcommit%2F%3Fid%3D434fb1e7444a2efc3a4ebd950c7f771ebfcffa31&amp;d
> ata=3D04%7C01%7Calexander.deucher%40amd.com%7C0622549383fb4320346
> b08d90bcf7be1%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C6375
> 53808670161651%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiL
> CJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=3DJC
> M4xvPEnWdckcTPbQ2Ujv%2FAiMMsFMzzl4Pr%2FRPlcMQ%3D&amp;reserve
> d=3D0
> [5] qemu-system-ppc64 -M ppce500 -cpu e5500 -m 1024 -kernel uImage - =

> drive format=3Draw,file=3DMintPPC32-X5000.img,index=3D0,if=3Dvirtio -netd=
ev
> user,id=3Dmynet0 -device virtio-net-pci,netdev=3Dmynet0 -append "rw =

> root=3D/dev/vda" -device virtio-vga -usb -device usb-ehci,id=3Dehci =

> -device usb- tablet -device virtio-keyboard-pci -smp 4 -vnc :1 [6] =

> https://nam11.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2Fforu
> m.hyperion-
> entertainment.com%2Fviewtopic.php%3Fp%3D53074%23p53074&amp;data
> =3D04%7C01%7Calexander.deucher%40amd.com%7C0622549383fb4320346b08
> d90bcf7be1%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C6375538
> 08670161651%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQ
> IjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=3DRXfSlY
> A3bDEFas0%2Fk2vMWsl2l0nuhS2ecjZgSBLc%2Bs4%3D&amp;reserved=3D0
> [7] git revert 434fb1e7444a2efc3a4ebd950c7f771ebfcffa3
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