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412c8f7de0
radeon must load only after amdkfd's loading has been completed. If that is not enforced, then radeon's call into amdkfd's functions will cause a kernel BUG. When radeon and amdkfd are built as kernel modules, that rule is enforced by the kernel's modules loading mechanism. When radeon and amdkfd are built inside the kernel image, that rule is enforced by ordering in the drm Makefile (amdkfd before radeon). Instead of using drm Makefile ordering, we can now use deferred loading as amdkfd now returns -EPROBE_DEFER in kgd2kfd_init() when it is not yet loaded. This patch defers radeon loading by propagating -EPROBE_DEFER to the kernel's drivers loading infrastructure. That will put radeon into the pending drivers list (see description in dd.c). Once amdkfd is loaded, a call to kgd2kfd_init() will return successfully and radeon will be able to load. Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> |
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