INDIRECT_BUFFER_VALID
u32 control = INDIRECT_BUFFER_VALID | ib->length_dw | (vmid << 24);
u32 control = INDIRECT_BUFFER_VALID | ib->length_dw | (vmid << 24);
u32 control = INDIRECT_BUFFER_VALID | ib->length_dw | (vmid << 24);
u32 control = INDIRECT_BUFFER_VALID | ib->length_dw | (vmid << 24);
u32 control = INDIRECT_BUFFER_VALID | ib->length_dw | (vmid << 24);
u32 control = INDIRECT_BUFFER_VALID | ib->length_dw | (vmid << 24);
u32 control = INDIRECT_BUFFER_VALID | ib->length_dw | (vmid << 24);
u32 control = INDIRECT_BUFFER_VALID | ib->length_dw | (vmid << 24);
u32 header, control = INDIRECT_BUFFER_VALID;