enum {
	PGTBL_CTL	= 0x2020,
	PGTBL_ER	= 0x2024,
	
	RING_BUFFER_TAIL	= 0x2030,
	RING_BUFFER_HEAD	= 0x2034,
	RING_BUFFER_START	= 0x2038,
	RING_BUFFER_CTL		= 0x203C,

	IPEIR		= 0x2064,
	IPEHR		= 0x2068,
	INSTDONE	= 0x206C,
	INSTPS		= 0x2070,
	ACTHD		= 0x2074,

	NOPID	= 0x2094,
	MI_MODE	= 0x209C,
		MI_MODE_IDLE	= 1<<9,
		MI_MODE_STOP	= 1<<8,

	EIR		= 0x20B0,
	EMR		= 0x20B4,
	ESR		= 0x20B8,

	GFX_FLSH_CNTL	= 0x2170,
};