Oded Gabbay efb1c6582e drm/amdgpu: Return -EPROBE_DEFER when amdkfd not loaded ... amdgpu must load only after amdkfd's loading has been completed. If that is not enforced, then amdgpu's call into amdkfd's functions will cause a kernel BUG. When amdgpu and amdkfd are built as kernel modules, that rule is enforced by the kernel's modules loading mechanism. When amdgpu and amdkfd are built inside the kernel image, that rule is enforced by ordering in the drm Makefile (amdkfd before amdgpu). 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 amdgpu loading by propagating -EPROBE_DEFER to the kernel's drivers loading infrastructure. That will put amdgpu into the pending drivers list (see description in dd.c). Once amdkfd is loaded, a call to kgd2kfd_init() will return successfully and amdgpu will be able to load. Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com>		2016-02-27 22:52:40 +02:00
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acp	drm/amd: add pm domain for ACP IP sub blocks	2016-02-10 14:17:09 -05:00
amdgpu	drm/amdgpu: Return -EPROBE_DEFER when amdkfd not loaded	2016-02-27 22:52:40 +02:00
amdkfd	drm/amdkfd: Track when module's init is complete	2016-02-27 22:52:40 +02:00
include	drm/amdkfd: Track when module's init is complete	2016-02-27 22:52:40 +02:00
powerplay	drm/amd/powerplay: add powerplay valid check to avoid null point.	2016-02-10 16:21:12 -05:00
scheduler	drm/amdgpu: drop a dummy wakeup scheduler	2016-02-10 14:17:02 -05:00