r128_drv.h

内核linux2.4.20,可跟rtlinux3.2打补丁 组成实时linux系统,编译内核

 */
#define R128_PM4_BUFFER_OFFSET		0x0700
#define R128_PM4_BUFFER_CNTL		0x0704
#	define R128_PM4_MASK			(15 << 28)
#	define R128_PM4_NONPM4			(0  << 28)
#	define R128_PM4_192PIO			(1  << 28)
#	define R128_PM4_192BM			(2  << 28)
#	define R128_PM4_128PIO_64INDBM		(3  << 28)
#	define R128_PM4_128BM_64INDBM		(4  << 28)
#	define R128_PM4_64PIO_128INDBM		(5  << 28)
#	define R128_PM4_64BM_128INDBM		(6  << 28)
#	define R128_PM4_64PIO_64VCBM_64INDBM	(7  << 28)
#	define R128_PM4_64BM_64VCBM_64INDBM	(8  << 28)
#	define R128_PM4_64PIO_64VCPIO_64INDPIO	(15 << 28)

#define R128_PM4_BUFFER_WM_CNTL		0x0708
#	define R128_WMA_SHIFT			0
#	define R128_WMB_SHIFT			8
#	define R128_WMC_SHIFT			16
#	define R128_WB_WM_SHIFT			24

#define R128_PM4_BUFFER_DL_RPTR_ADDR	0x070c
#define R128_PM4_BUFFER_DL_RPTR		0x0710
#define R128_PM4_BUFFER_DL_WPTR		0x0714
#	define R128_PM4_BUFFER_DL_DONE		(1 << 31)

#define R128_PM4_VC_FPU_SETUP		0x071c

#define R128_PM4_IW_INDOFF		0x0738
#define R128_PM4_IW_INDSIZE		0x073c

#define R128_PM4_STAT			0x07b8
#	define R128_PM4_FIFOCNT_MASK		0x0fff
#	define R128_PM4_BUSY			(1 << 16)
#	define R128_PM4_GUI_ACTIVE		(1 << 31)

#define R128_PM4_MICROCODE_ADDR		0x07d4
#define R128_PM4_MICROCODE_RADDR	0x07d8
#define R128_PM4_MICROCODE_DATAH	0x07dc
#define R128_PM4_MICROCODE_DATAL	0x07e0

#define R128_PM4_BUFFER_ADDR		0x07f0
#define R128_PM4_MICRO_CNTL		0x07fc
#	define R128_PM4_MICRO_FREERUN		(1 << 30)

#define R128_PM4_FIFO_DATA_EVEN		0x1000
#define R128_PM4_FIFO_DATA_ODD		0x1004


/* CCE command packets
 */
#define R128_CCE_PACKET0		0x00000000
#define R128_CCE_PACKET1		0x40000000
#define R128_CCE_PACKET2		0x80000000
#define R128_CCE_PACKET3		0xC0000000
#	define R128_CNTL_HOSTDATA_BLT		0x00009400
#	define R128_CNTL_PAINT_MULTI		0x00009A00
#	define R128_CNTL_BITBLT_MULTI		0x00009B00
#	define R128_3D_RNDR_GEN_INDX_PRIM	0x00002300

#define R128_CCE_PACKET_MASK		0xC0000000
#define R128_CCE_PACKET_COUNT_MASK	0x3fff0000
#define R128_CCE_PACKET0_REG_MASK	0x000007ff
#define R128_CCE_PACKET1_REG0_MASK	0x000007ff
#define R128_CCE_PACKET1_REG1_MASK	0x003ff800

#define R128_CCE_VC_CNTL_PRIM_TYPE_NONE		0x00000000
#define R128_CCE_VC_CNTL_PRIM_TYPE_POINT	0x00000001
#define R128_CCE_VC_CNTL_PRIM_TYPE_LINE		0x00000002
#define R128_CCE_VC_CNTL_PRIM_TYPE_POLY_LINE	0x00000003
#define R128_CCE_VC_CNTL_PRIM_TYPE_TRI_LIST	0x00000004
#define R128_CCE_VC_CNTL_PRIM_TYPE_TRI_FAN	0x00000005
#define R128_CCE_VC_CNTL_PRIM_TYPE_TRI_STRIP	0x00000006
#define R128_CCE_VC_CNTL_PRIM_TYPE_TRI_TYPE2	0x00000007
#define R128_CCE_VC_CNTL_PRIM_WALK_IND		0x00000010
#define R128_CCE_VC_CNTL_PRIM_WALK_LIST		0x00000020
#define R128_CCE_VC_CNTL_PRIM_WALK_RING		0x00000030
#define R128_CCE_VC_CNTL_NUM_SHIFT		16

#define R128_DATATYPE_CI8		2
#define R128_DATATYPE_ARGB1555		3
#define R128_DATATYPE_RGB565		4
#define R128_DATATYPE_RGB888		5
#define R128_DATATYPE_ARGB8888		6
#define R128_DATATYPE_RGB332		7
#define R128_DATATYPE_RGB8		9
#define R128_DATATYPE_ARGB4444		15

/* Constants */
#define R128_AGP_OFFSET			0x02000000

#define R128_WATERMARK_L		16
#define R128_WATERMARK_M		8
#define R128_WATERMARK_N		8
#define R128_WATERMARK_K		128

#define R128_MAX_USEC_TIMEOUT		100000	/* 100 ms */

#define R128_LAST_FRAME_REG		R128_GUI_SCRATCH_REG0
#define R128_LAST_DISPATCH_REG		R128_GUI_SCRATCH_REG1
#define R128_MAX_VB_AGE			0x7fffffff
#define R128_MAX_VB_VERTS		(0xffff)

#define R128_RING_HIGH_MARK		128

#define R128_PERFORMANCE_BOXES		0


#define R128_BASE(reg)		((unsigned long)(dev_priv->mmio->handle))
#define R128_ADDR(reg)		(R128_BASE( reg ) + reg)

#define R128_DEREF(reg)		*(volatile u32 *)R128_ADDR( reg )
#ifdef __alpha__
#define R128_READ(reg)		(_R128_READ((u32 *)R128_ADDR(reg)))
static inline u32 _R128_READ(u32 *addr)
{
	mb();
	return *(volatile u32 *)addr;
}
#define R128_WRITE(reg,val)						\
do {									\
	wmb();								\
	R128_DEREF(reg) = val;						\
} while (0)
#else
#define R128_READ(reg)		le32_to_cpu( R128_DEREF( reg ) )
#define R128_WRITE(reg,val)						\
do {									\
	R128_DEREF( reg ) = cpu_to_le32( val );				\
} while (0)
#endif

#define R128_DEREF8(reg)	*(volatile u8 *)R128_ADDR( reg )
#ifdef __alpha__
#define R128_READ8(reg)		_R128_READ8((u8 *)R128_ADDR(reg))
static inline u8 _R128_READ8(u8 *addr)
{
	mb();
	return *(volatile u8 *)addr;
}
#define R128_WRITE8(reg,val)						\
do {									\
	wmb();								\
	R128_DEREF8(reg) = val;						\
} while (0)
#else
#define R128_READ8(reg)		R128_DEREF8( reg )
#define R128_WRITE8(reg,val)	do { R128_DEREF8( reg ) = val; } while (0)
#endif

#define R128_WRITE_PLL(addr,val)					\
do {									\
	R128_WRITE8(R128_CLOCK_CNTL_INDEX,				\
		    ((addr) & 0x1f) | R128_PLL_WR_EN);			\
	R128_WRITE(R128_CLOCK_CNTL_DATA, (val));			\
} while (0)

extern int R128_READ_PLL(drm_device_t *dev, int addr);


#define CCE_PACKET0( reg, n )		(R128_CCE_PACKET0 |		\
					 ((n) << 16) | ((reg) >> 2))
#define CCE_PACKET1( reg0, reg1 )	(R128_CCE_PACKET1 |		\
					 (((reg1) >> 2) << 11) | ((reg0) >> 2))
#define CCE_PACKET2()			(R128_CCE_PACKET2)
#define CCE_PACKET3( pkt, n )		(R128_CCE_PACKET3 |		\
					 (pkt) | ((n) << 16))


/* ================================================================
 * Misc helper macros
 */

#define LOCK_TEST_WITH_RETURN( dev )					\
do {									\
	if ( !_DRM_LOCK_IS_HELD( dev->lock.hw_lock->lock ) ||		\
	     dev->lock.pid != current->pid ) {				\
		DRM_ERROR( "%s called without lock held\n",		\
			   __FUNCTION__ );				\
		return -EINVAL;						\
	}								\
} while (0)

#define RING_SPACE_TEST_WITH_RETURN( dev_priv )				\
do {									\
	drm_r128_ring_buffer_t *ring = &dev_priv->ring; int i;		\
	if ( ring->space < ring->high_mark ) {				\
		for ( i = 0 ; i < dev_priv->usec_timeout ; i++ ) {	\
			r128_update_ring_snapshot( ring );		\
			if ( ring->space >= ring->high_mark )		\
				goto __ring_space_done;			\
			udelay( 1 );					\
		}							\
		DRM_ERROR( "ring space check failed!\n" );		\
		return -EBUSY;						\
	}								\
 __ring_space_done:							\
} while (0)

#define VB_AGE_TEST_WITH_RETURN( dev_priv )				\
do {									\
	drm_r128_sarea_t *sarea_priv = dev_priv->sarea_priv;		\
	if ( sarea_priv->last_dispatch >= R128_MAX_VB_AGE ) {		\
		int __ret = r128_do_cce_idle( dev_priv );		\
		if ( __ret < 0 ) return __ret;				\
		sarea_priv->last_dispatch = 0;				\
		r128_freelist_reset( dev );				\
	}								\
} while (0)

#define R128_WAIT_UNTIL_PAGE_FLIPPED() do {				\
	OUT_RING( CCE_PACKET0( R128_WAIT_UNTIL, 0 ) );			\
	OUT_RING( R128_EVENT_CRTC_OFFSET );				\
} while (0)


/* ================================================================
 * Ring control
 */

#define r128_flush_write_combine()	mb()


#define R128_VERBOSE	0

#define RING_LOCALS							\
	int write; unsigned int tail_mask; volatile u32 *ring;

#define BEGIN_RING( n ) do {						\
	if ( R128_VERBOSE ) {						\
		DRM_INFO( "BEGIN_RING( %d ) in %s\n",			\
			   (n), __FUNCTION__ );				\
	}								\
	if ( dev_priv->ring.space <= (n) * sizeof(u32) ) {		\
		r128_wait_ring( dev_priv, (n) * sizeof(u32) );		\
	}								\
	dev_priv->ring.space -= (n) * sizeof(u32);			\
	ring = dev_priv->ring.start;					\
	write = dev_priv->ring.tail;					\
	tail_mask = dev_priv->ring.tail_mask;				\
} while (0)

/* You can set this to zero if you want.  If the card locks up, you'll
 * need to keep this set.  It works around a bug in early revs of the
 * Rage 128 chipset, where the CCE would read 32 dwords past the end of
 * the ring buffer before wrapping around.
 */
#define R128_BROKEN_CCE	1

#define ADVANCE_RING() do {						\
	if ( R128_VERBOSE ) {						\
		DRM_INFO( "ADVANCE_RING() wr=0x%06x tail=0x%06x\n",	\
			  write, dev_priv->ring.tail );			\
	}								\
	if ( R128_BROKEN_CCE && write < 32 ) {				\
		memcpy( dev_priv->ring.end,				\
			dev_priv->ring.start,				\
			write * sizeof(u32) );				\
	}								\
	r128_flush_write_combine();					\
	dev_priv->ring.tail = write;					\
	R128_WRITE( R128_PM4_BUFFER_DL_WPTR, write );			\
} while (0)

#define OUT_RING( x ) do {						\
	if ( R128_VERBOSE ) {						\
		DRM_INFO( "   OUT_RING( 0x%08x ) at 0x%x\n",		\
			   (unsigned int)(x), write );			\
	}								\
	ring[write++] = cpu_to_le32( x );				\
	write &= tail_mask;						\
} while (0)

#endif /* __R128_DRV_H__ */