[Freedreno] Ifc6410 and cross compilation

[Rob Clark]

hmm.. well, that iommu fault is actually coming from the display, not the gpu.

That prebuilt kernel is probably not the most recent / up-to-date, but
I wouldn't expect any problems like that.  Not really too much I can
say from just that small snippet.  Possibly full kernel log would
contain some clues.

Now that linaro is doing builds for ifc6410, they may have a more
up-to-date prebuilt kernel.. they actually have full ubuntu builds
with gnome-shell and a fairly recent mesa.  Although I expect it
should work to use their kernel with a fedora (or other) userspace if
you prefer.

https://wiki.linaro.org/Boards/IFC6410

BR,
-R

On Fri, Jul 4, 2014 at 8:11 AM, XoD <xoddark at gmail.com> wrote:
> Hello, I finally successfully boot my ifc6410 board on sdcard with fedora in
> text mode.
>
> When I set the graphical mode, the boot fail with a loop of warnings (see it
> lower) :
> But it's with the prebuild kernel of this page :
> https://github.com/freedreno/freedreno/wiki/Ifc6410, who is a 3.4 kernel.
> I need to read more of doc on the freedreno wiki, a do some other test (with
> more recent kernel for exemple ?).
> But have not had time yet.
>
> Thank you for your help.
>
> Warning Logs :
>
> [   13.455516] msm_iommu: Unexpected IOMMU page fault!
> [   13.455516] msm_iommu: name    = mdp0
> [   13.455516] msm_iommu: context = mdp_port0_cb0 (0)
> [   13.455516] msm_iommu: Interesting registers:
> [   13.455547] msm_iommu: FAR    = 02068000    PAR    = 00000000
> [   13.455547] msm_iommu: FSR    = 4000000a [TF APF SS ]
> [   13.455547] msm_iommu: FSYNR0 = 0f000000    FSYNR1 = 00447463
> [   13.455547] msm_iommu: TTBR0  = a3b2c000    TTBR1  = 00000000
> [   13.455547] msm_iommu: SCTLR  = 00000003    ACTLR  = 00037072
> [   13.455577] msm_iommu: PRRR   = ff0881a8    NMRR   = 40e040e0
>
>
>