On 6/5/23 12:17, Matthias Schnelte via lists.yoctoproject.org wrote:
Hello everyone,
I was trying to build kirkstone for am335x with a SGX GPU.
I was not able to use it with mesa.
On the latest kirkstone (1743b0101) (I tried it with the latest master, too) if
I set
PREFERRED_PROVIDER_virtual/gpudriver = "ti-sgx-ddk-km"
bitbaking mesa-pvr fails with
../git/meson.build:21:0: ERROR: Options "sgx" are not in allowed choices: "auto,
kmsro, radeonsi, r300, r600, nouveau, freedreno, swrast, v3d, vc4, etnaviv, tegra, i915, svga,
virgl, panfrost, iris, lima, zink, d3d12, asahi, crocus, pvr"
There is a branch wip2/kirkstone/sgx-1.17-4948957/22.0 on the mesa-pvr
repository that includes this option. But this branch fails to build with lots
of undefined reference errors.
So the only way to build an image with working SGX support for me was to port
the ti-sgx-ddk-um_1.17.4948957.bb from dunfell over to kirkstone and set
preffered providers for my target as in dunfell.
PREFERRED_PROVIDER_virtual/egl = "ti-sgx-ddk-um"
PREFERRED_PROVIDER_virtual/libgles1 = "ti-sgx-ddk-um"
PREFERRED_PROVIDER_virtual/libgles2 = "ti-sgx-ddk-um"
PREFERRED_PROVIDER_virtual/libgbm = "ti-sgx-ddk-um"
PREFERRED_PROVIDER_virtual/gpudriver = "ti-sgx-ddk-km"
Is this currently the only way to get SGX working or am I doing sth wrong?
Tnx.
Matthias
Hey,
So, fun thing is, that branch does have some initial work to get SGX up
and running in kirkstone, but it also introduces a cyclic dependency in
its current state that yocto is unable to resolve. Technically there was
some work to fix this by migrating sgx to use the new PVR-DRI interface
present in Rogue, which is much more stable and would allow for greater
code reuse between the platforms but it's been a real pain so far.
To make a long story short, that work is currently stalled while we
stabilize rogue graphics (and the rest of the graphics utilities) under
kirkstone. Expect that work to be picked back up for 9.1 when greater
general legacy device support is present.
Regards,
Randolph Sapp
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