Re: [PATCH v2 00/21] Refine memblock API

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On Wed, Sep 25, 2019 at 7:12 AM Fabio Estevam <festevam@xxxxxxxxx> wrote:
>
> Hi Adam,
>
> On Wed, Sep 25, 2019 at 6:38 AM Adam Ford <aford173@xxxxxxxxx> wrote:
>
> > I know it's rather late, but this patch broke the Etnaviv 3D graphics
> > in my i.MX6Q.
> >
> > When I try to use the 3D, it returns some errors and the dmesg log
> > shows some memory allocation errors too:
> > [    3.682347] etnaviv etnaviv: bound 130000.gpu (ops gpu_ops)
> > [    3.688669] etnaviv etnaviv: bound 134000.gpu (ops gpu_ops)
> > [    3.695099] etnaviv etnaviv: bound 2204000.gpu (ops gpu_ops)
> > [    3.700800] etnaviv-gpu 130000.gpu: model: GC2000, revision: 5108
> > [    3.723013] etnaviv-gpu 130000.gpu: command buffer outside valid
> > memory window
> > [    3.731308] etnaviv-gpu 134000.gpu: model: GC320, revision: 5007
> > [    3.752437] etnaviv-gpu 134000.gpu: command buffer outside valid
> > memory window
>
> This looks similar to what was reported at:
> https://bugs.freedesktop.org/show_bug.cgi?id=111789
>
> Does it help if you use the same suggestion and pass cma=256M in your
> kernel command line?

I tried cma=256M and noticed the cma dump at the beginning didn't
change.  Do we need to setup a reserved-memory node like
imx6ul-ccimx6ulsom.dtsi did?

adam

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