etnaviv-gpu 134000.gpu: MMU fault status 0x00000002 on i.XM6 Quad Plus

[Luís Mendes]

Hi Fabio,

Yes, I've recompiled the dtb file. I recompile and replace the dtb every
time I compile a new kernel.
I'm running the kernel on a Wandboard Quad Plus Rev. D1, for which there is
no dtb in the Vanilla kernel, so I've slightly adapted from the Technexion
kernel.

The dts files follow in attachment. All remaining files are from the
Vanilla kernel 4.12.x.

Regards,
Luís

On Fri, Aug 25, 2017 at 9:12 PM, Fabio Estevam <festevam at gmail.com> wrote:

> Hi Luís,
>
> On Fri, Aug 25, 2017 at 4:24 PM, Luís Mendes <luis.p.mendes at gmail.com>
> wrote:
> > Hi Fabio,
> >
> > I've found the root kernel change responsible for the complete image
> > corruption on i.MX6 Quad Plus.
> > It happened between kernel 4.11.x and kernel 4.12.0-rc1, it is the
> commit:
> >
> > https://git.kernel.org/pub/scm/linux/kernel/git/stable/
> linux-stable.git/commit/?h=v4.12-rc1&id=2f34c1231bfc9f2550f934acb268ac
> 7315fb3837
> >
> > imx-drm: - Prefetch Resolve Engine/Gasket on i.MX6QP
> >               - Deferred plane disabling
> >               - Separate alpha support
> >
> > I've removed the files ipu-pre.c and ipu-prg.c from
> > drivers/gpu/ipu-v3/Makefile and all references to it from
> > drivers/gpu/ipu-v3/ipu-common.c and from drivers/gpu/drm/imx/ipuv3-
> crtc.c
> > and drivers/gpu/drm/imx/ipuv3-plane.c.
> >
> > The recompiled kernel and modules after such code removal restores the
> > correct penguin logos images per each cpu core during Linux boot as well
> as
> > the X login screen after booting into Ubuntu MATE 17.04.
> >
> > There's something that is still missing with the IPU-V3 pre(fetch) and
> prg
> > code.
>
> When you run 4.12 do you also rebuild the dtb? The pre and prg nodes
> have been added in 4.12, so please make sure you are also rebuilding
> the dtb.
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/etnaviv/attachments/20170825/72789abc/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: imx6qp-wandboard-revd1.dts
Type: audio/vnd.dts
Size: 853 bytes
Desc: not available
URL: <https://lists.freedesktop.org/archives/etnaviv/attachments/20170825/72789abc/attachment-0002.bin>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: imx6qdl-wandboard-revd1.dtsi
Type: application/octet-stream
Size: 19904 bytes
Desc: not available
URL: <https://lists.freedesktop.org/archives/etnaviv/attachments/20170825/72789abc/attachment-0001.obj>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: imx6q-pinfunc.patch
Type: text/x-patch
Size: 751 bytes
Desc: not available
URL: <https://lists.freedesktop.org/archives/etnaviv/attachments/20170825/72789abc/attachment-0003.bin>