MC_VM_MD_L1_TLB3_CNTL  967 drivers/gpu/drm/radeon/evergreend.h #define	MC_VM_MD_L1_TLB3_CNTL				0x2698
MC_VM_MD_L1_TLB3_CNTL  477 drivers/gpu/drm/radeon/rv770d.h #define	MC_VM_MD_L1_TLB3_CNTL				0x2698