Hi Wladimir,
Thank you very much for the reply.
I am able to build the kernel, drm and mesa components.
After loading the kernel, I am getting following entries,
/dev/gsl_kmod
/dev/dri/card0
/dev/dri/renderD128
Can you please let me know what are the test application that be used to
test the driver through gsl_kmod interface?
Now to test the driver, I am running kmscube, which is giving exception,
"@MF@ using DRM kernel interface
@MF@ fd_device_del refcnt=1
@MF@ fd_device_del_impl
@MF@ fd_cleanup_bo_cache devtime=0 time=0 num_buckets=55
Segmentation fault"
Can freedreno test be used with gsl_kmod interface, I am simultaneously
trying build freedreno tests?
I have allocated 9MB of memory to "memchunk" in
drivers/mxc/amd-gpu/platform/hal/linux/gsl_hal.c as, dma_alloc_coherent
is failing for 72MB
Regards,
Abhijit
On Monday 07 August 2017 04:59 PM, Wladimir wrote:
I guess that it is failing to find the old kgsl shim drm driver, which
enabled allocation of GEM buffers for pixmaps. I know Wladimir played
a bit with this on imx5, but I think he was just using gbm/kms and not
x11. I guess he was using imx-drm for GEM buffer allocation?
Yes, for the a20x stuff I use the old GSL kernel driver
(forward-ported to 4.12, see
https://github.com/laanwj/linux-freedreno-a2xx).
This creates a /dev/gsl_kmod, which has an interface different from
the "newer" kgsl.
And a mesa and libdrm that is patched to use this:
https://github.com/laanwj/mesa-freedreno-a2xx
https://github.com/laanwj/libdrm-freedreno-a20x
This fork of mesa doesn't support X11, only kms/gbm-based rendering.
All of this is very experimental.
Regards,
Wladimir
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