Symbol: amdgpu_enable_vblank_kms
sys/dev/drm/amd/amdgpu/amdgpu.h
1243
int amdgpu_enable_vblank_kms(struct drm_device *dev, unsigned int pipe);
sys/dev/drm/amd/amdgpu/amdgpu_drv.c
1312
.enable_vblank = amdgpu_enable_vblank_kms,