path: root/linux/mga_drv.h

/* mga_drv.h -- Private header for the Matrox G200/G400 driver -*- linux-c -*-
 * Created: Mon Dec 13 01:50:01 1999 by jhartmann@precisioninsight.com
 *
 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
 * All rights reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 * Authors:
 *    Gareth Hughes <gareth@valinux.com>
 */

#ifndef __MGA_DRV_H__
#define __MGA_DRV_H__

#define MGA_BUF_IN_USE         0
#define MGA_BUF_SWAP_PENDING   1
#define MGA_BUF_FORCE_FIRE     2
#define MGA_BUF_NEEDS_OVERFLOW 3

typedef struct {
	u32 buffer_status;
   	int num_dwords;
   	int max_dwords;
   	u32 *current_dma_ptr;
   	u32 *head;
   	u32 phys_head;
	unsigned int prim_age;
   	int sec_used;
   	int idx;
} drm_mga_prim_buf_t;


enum {
	MGA_DMA_IDLE,			/* Primary DMA stream is idle        */
	MGA_DMA_FLUSH,			/* Flush primary DMA stream          */
	MGA_DMA_WRAP			/* Primary DMA has been wrapped      */
};

typedef struct drm_mga_primary_buffer {
	u8 *start;
	u8 *end;
	int size;

	volatile u32 *head;
	u32 tail;
	int space;

	unsigned long status_page;
	volatile u32 *status;

	u32 last_flush;
	u32 high_mark;

	spinlock_t tail_lock;
	spinlock_t list_lock;
} drm_mga_primary_buffer_t;

typedef struct drm_mga_freelist {
   	struct drm_mga_freelist *next;
   	struct drm_mga_freelist *prev;
	drm_mga_age_t age;
   	drm_buf_t *buf;
} drm_mga_freelist_t;

typedef struct {
   	drm_mga_freelist_t *list_entry;
	int discard;
	int dispatched;
} drm_mga_buf_priv_t;

#define MGA_IN_DISPATCH   0
#define MGA_IN_FLUSH      1
#define MGA_IN_WAIT       2
#define MGA_IN_GETBUF	  3

typedef struct drm_mga_private {
	drm_mga_primary_buffer_t prim;
	drm_mga_sarea_t *sarea_priv;

   	drm_mga_freelist_t *head;
   	drm_mga_freelist_t *tail;

	unsigned int warp_pipe;
	unsigned long warp_pipe_phys[MGA_MAX_WARP_PIPES];

	int chipset;
	int usec_timeout;

	u32 clear_cmd;
	u32 maccess;

	unsigned int fb_cpp;
	unsigned int front_offset;
	unsigned int front_pitch;
	unsigned int back_offset;
	unsigned int back_pitch;

	unsigned int depth_cpp;
	unsigned int depth_offset;
	unsigned int depth_pitch;

	unsigned int texture_offset;
	unsigned int texture_size;

	drm_map_t *sarea;
	drm_map_t *fb;
	drm_map_t *mmio;
	drm_map_t *status;
	drm_map_t *warp;
	drm_map_t *primary;
	drm_map_t *buffers;
	drm_map_t *agp_textures;
} drm_mga_private_t;

				/* mga_drv.c */
extern int mga_version( struct inode *inode, struct file *filp,
			unsigned int cmd, unsigned long arg );
extern int mga_open( struct inode *inode, struct file *filp );
extern int mga_release( struct inode *inode, struct file *filp );
extern int mga_ioctl( struct inode *inode, struct file *filp,
		      unsigned int cmd, unsigned long arg );
extern int mga_lock( struct inode *inode, struct file *filp,
		     unsigned int cmd, unsigned long arg );
extern int mga_unlock( struct inode *inode, struct file *filp,
		       unsigned int cmd, unsigned long arg );

				/* mga_dma.c */
extern int mga_dma_init( struct inode *inode, struct file *filp,
			 unsigned int cmd, unsigned long arg );
extern int mga_dma_flush( struct inode *inode, struct file *filp,
			  unsigned int cmd, unsigned long arg );
extern int mga_dma_reset( struct inode *inode, struct file *filp,
			  unsigned int cmd, unsigned long arg );
extern int mga_control( struct inode *inode, struct file *filp,
			unsigned int cmd, unsigned long arg );
extern int mga_dma_buffers( struct inode *inode, struct file *filp,
			    unsigned int cmd, unsigned long arg );

extern int mga_do_wait_for_idle( drm_mga_private_t *dev_priv );
extern int mga_do_dma_idle( drm_mga_private_t *dev_priv );
extern int mga_do_dma_reset( drm_mga_private_t *dev_priv );
extern int mga_do_engine_reset( drm_mga_private_t *dev_priv );
extern int mga_do_cleanup_dma( drm_device_t *dev );

extern void mga_do_dma_flush( drm_mga_private_t *dev_priv );
extern void mga_do_dma_wrap( drm_mga_private_t *dev_priv );

extern int mga_irq_uninstall( drm_device_t *dev );

				/* mga_state.c */
extern int  mga_dma_clear( struct inode *inode, struct file *filp,
			   unsigned int cmd, unsigned long arg );
extern int  mga_dma_swap( struct inode *inode, struct file *filp,
			  unsigned int cmd, unsigned long arg );
extern int  mga_dma_vertex( struct inode *inode, struct file *filp,
			    unsigned int cmd, unsigned long arg );
extern int  mga_dma_iload( struct inode *inode, struct file *filp,
			   unsigned int cmd, unsigned long arg );

#if 0
extern int  mga_clear_bufs( struct inode *inode, struct file *filp,
			    unsigned int cmd, unsigned long arg );
extern int  mga_swap_bufs( struct inode *inode, struct file *filp,
			   unsigned int cmd, unsigned long arg );
extern int  mga_iload( struct inode *inode, struct file *filp,
		       unsigned int cmd, unsigned long arg );
extern int  mga_indices( struct inode *inode, struct file *filp,
			 unsigned int cmd, unsigned long arg );
#endif

				/* mga_warp.c */
extern int mga_warp_install_microcode( drm_device_t *dev );
extern int mga_warp_init( drm_device_t *dev );

#define mga_flush_write_combine()	mb()


#define MGA_BASE( reg )		((u32)(dev_priv->mmio->handle))
#define MGA_ADDR( reg )		(MGA_BASE(reg) + reg)

#define MGA_DEREF( reg )	*(__volatile__ int *)MGA_ADDR( reg )
#define MGA_READ( reg )		MGA_DEREF( reg )
#define MGA_WRITE( reg, val )	do { MGA_DEREF( reg ) = val; } while (0)

typedef enum {
	TT_GENERAL,
	TT_BLIT,
	TT_VECTOR,
	TT_VERTEX
} transferType_t;


#define DWGREG0 	0x1c00
#define DWGREG0_END 	0x1dff
#define DWGREG1		0x2c00
#define DWGREG1_END	0x2dff

#define ISREG0(r)	(r >= DWGREG0 && r <= DWGREG0_END)
#define DMAREG0(r)	(u8)((r - DWGREG0) >> 2)
#define DMAREG1(r)	(u8)(((r - DWGREG1) >> 2) | 0x80)
#define DMAREG(r)	(ISREG0(r) ? DMAREG0(r) : DMAREG1(r))

#define MGA_NUM_PRIM_BUFS 	8

#define PRIMLOCALS	u8 tempIndex[4]; u32 *dma_ptr; u32 phys_head; \
			int outcount, num_dwords

#define PRIM_OVERFLOW(dev, dev_priv, length) do {			   \
	drm_mga_prim_buf_t *tmp_buf =					   \
 		dev_priv->prim_bufs[dev_priv->current_prim_idx];	   \
	if( test_bit(MGA_BUF_NEEDS_OVERFLOW, &tmp_buf->buffer_status)) {   \
 		mga_advance_primary(dev);				   \
 		mga_dma_schedule(dev, 1);				   \
		tmp_buf = dev_priv->prim_bufs[dev_priv->current_prim_idx]; \
 	} else if( tmp_buf->max_dwords - tmp_buf->num_dwords < length ||   \
 	           tmp_buf->sec_used > MGA_DMA_BUF_NR/2) {		   \
		set_bit(MGA_BUF_FORCE_FIRE, &tmp_buf->buffer_status);	   \
 		mga_advance_primary(dev);				   \
 		mga_dma_schedule(dev, 1);				   \
		tmp_buf = dev_priv->prim_bufs[dev_priv->current_prim_idx]; \
	}								   \
	if(MGA_VERBOSE)							   \
		DRM_DEBUG("PRIMGETPTR in %s\n", __FUNCTION__);		   \
	dma_ptr = tmp_buf->current_dma_ptr;				   \
	num_dwords = tmp_buf->num_dwords;				   \
	phys_head = tmp_buf->phys_head;					   \
	outcount = 0;							   \
} while(0)

#define PRIMGETPTR(dev_priv) do {					\
	drm_mga_prim_buf_t *tmp_buf =					\
		dev_priv->prim_bufs[dev_priv->current_prim_idx];	\
	if(MGA_VERBOSE)							\
		DRM_DEBUG("PRIMGETPTR in %s\n", __FUNCTION__);		\
	dma_ptr = tmp_buf->current_dma_ptr;				\
	num_dwords = tmp_buf->num_dwords;				\
	phys_head = tmp_buf->phys_head;					\
	outcount = 0;							\
} while(0)

#define PRIMPTR(prim_buf) do {					\
	if(MGA_VERBOSE)						\
		DRM_DEBUG("PRIMPTR in %s\n", __FUNCTION__);	\
	dma_ptr = prim_buf->current_dma_ptr;			\
	num_dwords = prim_buf->num_dwords;			\
	phys_head = prim_buf->phys_head;			\
	outcount = 0;						\
} while(0)

#define PRIMFINISH(prim_buf) do {				\
	if (MGA_VERBOSE) {					\
		DRM_DEBUG( "PRIMFINISH in %s\n", __FUNCTION__);	\
                if (outcount & 3)				\
                      DRM_DEBUG(" --- truncation\n");	        \
        }							\
	prim_buf->num_dwords = num_dwords;			\
	prim_buf->current_dma_ptr = dma_ptr;			\
} while(0)

#define PRIMADVANCE(dev_priv)	do {				\
drm_mga_prim_buf_t *tmp_buf = 					\
	dev_priv->prim_bufs[dev_priv->current_prim_idx];	\
	if (MGA_VERBOSE) {					\
		DRM_DEBUG("PRIMADVANCE in %s\n", __FUNCTION__);	\
                if (outcount & 3)				\
                      DRM_DEBUG(" --- truncation\n");	\
        }							\
	tmp_buf->num_dwords = num_dwords;      			\
	tmp_buf->current_dma_ptr = dma_ptr;    			\
} while (0)

#define PRIMUPDATE(dev_priv)	do {					\
	drm_mga_prim_buf_t *tmp_buf =					\
		dev_priv->prim_bufs[dev_priv->current_prim_idx];	\
	tmp_buf->sec_used++;						\
} while (0)

#define AGEBUF(dev_priv, buf_priv)	do {				\
	drm_mga_prim_buf_t *tmp_buf =					\
		dev_priv->prim_bufs[dev_priv->current_prim_idx];	\
	buf_priv->my_freelist->age = tmp_buf->prim_age;			\
} while (0)


#define PRIMOUTREG(reg, val) do {					\
	tempIndex[outcount]=ADRINDEX(reg);				\
	dma_ptr[1+outcount] = val;					\
	if (MGA_VERBOSE)						\
		DRM_DEBUG("   PRIMOUT %d: 0x%x -- 0x%x\n",		\
		       num_dwords + 1 + outcount, ADRINDEX(reg), val);	\
	if( ++outcount == 4) {						\
		outcount = 0;						\
		dma_ptr[0] = *(unsigned long *)tempIndex;		\
		dma_ptr+=5;						\
		num_dwords += 5;					\
	}								\
}while (0)





/* ================================================================
 * Helper macross...
 */

#define MGA_EMIT_STATE( dev_priv, dirty )				\
do {									\
	if ( (dirty) & ~MGA_UPLOAD_CLIPRECTS ) {			\
		if ( dev_priv->chipset == MGA_CARD_TYPE_G400 ) {	\
			mga_g400_emit_state( dev_priv );		\
		} else {						\
			mga_g200_emit_state( dev_priv );		\
		}							\
	}								\
} while (0)

#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)


/* ================================================================
 * Primary DMA command stream
 */

#define MGA_VERBOSE	0

#define DMA_LOCALS	unsigned int write; volatile u8 *prim;		\
			unsigned long flags;
#define DMA_BLOCK_SIZE	(5 * sizeof(u32))

#define BEGIN_DMA( n )							\
do {									\
	if ( MGA_VERBOSE ) {						\
		DRM_INFO( "BEGIN_DMA( %d ) in %s\n",			\
			  (n), __FUNCTION__ );				\
		DRM_INFO( "   space=0x%x req=0x%x\n",			\
			  dev_priv->prim.space, (n) * DMA_BLOCK_SIZE );	\
	}								\
	if ( dev_priv->prim.space < (int)((n) * DMA_BLOCK_SIZE) ) {	\
		mga_do_dma_wrap( dev_priv );				\
	}								\
	prim = dev_priv->prim.start;					\
	write = dev_priv->prim.tail;					\
} while (0)

#define BEGIN_DMA_WRAP()						\
do {									\
	if ( MGA_VERBOSE ) {						\
		DRM_INFO( "BEGIN_DMA_WRAP() in %s\n", __FUNCTION__ );	\
		DRM_INFO( "   space=0x%x\n", dev_priv->prim.space );	\
	}								\
	prim = dev_priv->prim.start;					\
	write = dev_priv->prim.tail;					\
} while (0)

#define ADVANCE_DMA()							\
do {									\
	dev_priv->prim.space -= (write - dev_priv->prim.tail);		\
	spin_lock_irqsave( &dev_priv->prim.tail_lock, flags );		\
	dev_priv->prim.tail = write;					\
	spin_unlock_irqrestore( &dev_priv->prim.tail_lock, flags );	\
	if ( MGA_VERBOSE ) {						\
		DRM_INFO( "ADVANCE_DMA() tail=0x%05x sp=0x%x\n",	\
			  write, dev_priv->prim.space );		\
	}								\
} while (0)

/* Never use this, always use DMA_BLOCK(...) for primary DMA output.
 */
#define DMA_WRITE( offset, val )					\
do {									\
	if ( MGA_VERBOSE ) {						\
		DRM_INFO( "   DMA_WRITE( 0x%08x ) at 0x%04x\n",		\
			  (u32)(val), write + (offset) * sizeof(u32) );	\
	}								\
	*(volatile u32 *)(prim + write + (offset) * sizeof(u32)) = val;	\
} while (0)

#define DMA_BLOCK( reg0, val0, reg1, val1, reg2, val2, reg3, val3 )	\
do {									\
	DMA_WRITE( 0, ((DMAREG( reg0 ) << 0) |				\
		       (DMAREG( reg1 ) << 8) |				\
		       (DMAREG( reg2 ) << 16) |				\
		       (DMAREG( reg3 ) << 24)) );			\
	DMA_WRITE( 1, val0 );						\
	DMA_WRITE( 2, val1 );						\
	DMA_WRITE( 3, val2 );						\
	DMA_WRITE( 4, val3 );						\
	write += DMA_BLOCK_SIZE;					\
} while (0)


/* Buffer ageing via primary DMA stream head pointer.
 */

#define SET_AGE( age, h, w )						\
do {									\
	(age)->head = h;						\
	(age)->wrap = w;						\
} while (0)

#define TEST_AGE( age, h, w )		( (age)->wrap < w ||		\
					  ( (age)->wrap == w &&		\
					    (age)->head <= h ) )

#define AGE_BUFFER( buf_priv )						\
do {									\
	drm_mga_freelist_t *entry = (buf_priv)->list_entry;		\
	entry->age.head = (dev_priv->prim.tail +			\
			   dev_priv->primary->offset);			\
	entry->age.wrap = dev_priv->sarea_priv->last_wrap;		\
} while (0)


#define MGA_ENGINE_IDLE_MASK		(MGA_SOFTRAPEN |		\
					 MGA_DWGENGSTS |		\
					 MGA_ENDPRDMASTS)
#define MGA_DMA_IDLE_MASK		(MGA_SOFTRAPEN |		\
					 MGA_ENDPRDMASTS)

#define MGA_DMA_SOFTRAP_SIZE		32 * DMA_BLOCK_SIZE



/* A reduced set of the mga registers.
 */

#define MGA_ALPHACTRL 			0x2c7c
#define MGA_AR0 			0x1c60
#define MGA_AR1 			0x1c64
#define MGA_AR2 			0x1c68
#define MGA_AR3 			0x1c6c
#define MGA_AR4 			0x1c70
#define MGA_AR5 			0x1c74
#define MGA_AR6 			0x1c78

#define MGA_CXBNDRY			0x1c80
#define MGA_CXLEFT 			0x1ca0
#define MGA_CXRIGHT			0x1ca4

#define MGA_DMAPAD 			0x1c54
#define MGA_DSTORG 			0x2cb8
#define MGA_DWGCTL 			0x1c00
#	define MGA_OPCOD_MASK			(15 << 0)
#	define MGA_OPCOD_TRAP			(4 << 0)
#	define MGA_OPCOD_TEXTURE_TRAP		(6 << 0)
#	define MGA_OPCOD_BITBLT			(8 << 0)
#	define MGA_OPCOD_ILOAD			(9 << 0)
#	define MGA_ATYPE_MASK			(7 << 4)
#	define MGA_ATYPE_RPL			(0 << 4)
#	define MGA_ATYPE_RSTR			(1 << 4)
#	define MGA_ATYPE_ZI			(3 << 4)
#	define MGA_ATYPE_BLK			(4 << 4)
#	define MGA_ATYPE_I			(7 << 4)
#	define MGA_LINEAR			(1 << 7)
#	define MGA_ZMODE_MASK			(7 << 8)
#	define MGA_ZMODE_NOZCMP			(0 << 8)
#	define MGA_ZMODE_ZE			(2 << 8)
#	define MGA_ZMODE_ZNE			(3 << 8)
#	define MGA_ZMODE_ZLT			(4 << 8)
#	define MGA_ZMODE_ZLTE			(5 << 8)
#	define MGA_ZMODE_ZGT			(6 << 8)
#	define MGA_ZMODE_ZGTE			(7 << 8)
#	define MGA_SOLID			(1 << 11)
#	define MGA_ARZERO			(1 << 12)
#	define MGA_SGNZERO			(1 << 13)
#	define MGA_SHIFTZERO			(1 << 14)
#	define MGA_BOP_MASK			(15 << 16)
#	define MGA_BOP_ZERO			(0 << 16)
#	define MGA_BOP_DST			(10 << 16)
#	define MGA_BOP_SRC			(12 << 16)
#	define MGA_BOP_ONE			(15 << 16)
#	define MGA_TRANS_SHIFT			20
#	define MGA_TRANS_MASK			(15 << 20)
#	define MGA_BLTMOD_MASK			(15 << 25)
#	define MGA_BLTMOD_BMONOLEF		(0 << 25)
#	define MGA_BLTMOD_BMONOWF		(4 << 25)
#	define MGA_BLTMOD_PLAN			(1 << 25)
#	define MGA_BLTMOD_BFCOL			(2 << 25)
#	define MGA_BLTMOD_BU32BGR		(3 << 25)
#	define MGA_BLTMOD_BU32RGB		(7 << 25)
#	define MGA_BLTMOD_BU24BGR		(11 << 25)
#	define MGA_BLTMOD_BU24RGB		(15 << 25)
#	define MGA_PATTERN			(1 << 29)
#	define MGA_TRANSC			(1 << 30)
#	define MGA_CLIPDIS			(1 << 31)
#define MGA_DWGSYNC			0x2c4c

#define MGA_FCOL 			0x1c24
#define MGA_FIFOSTATUS 			0x1e10
#define MGA_FOGCOL 			0x1cf4
#define MGA_FXBNDRY			0x1c84
#define MGA_FXLEFT 			0x1ca8
#define MGA_FXRIGHT			0x1cac

#define MGA_ICLEAR 			0x1e18
#	define MGA_SOFTRAPICLR			(1 << 0)
#define MGA_IEN 			0x1e1c
#	define MGA_SOFTRAPIEN			(1 << 0)

#define MGA_LEN 			0x1c5c

#define MGA_MACCESS			0x1c04

#define MGA_PITCH 			0x1c8c
#define MGA_PLNWT 			0x1c1c
#define MGA_PRIMADDRESS 		0x1e58
#	define MGA_DMA_GENERAL			(0 << 0)
#	define MGA_DMA_BLIT			(1 << 0)
#	define MGA_DMA_VECTOR			(2 << 0)
#	define MGA_DMA_VERTEX			(3 << 0)
#define MGA_PRIMEND			0x1e5c
#	define MGA_PRIMNOSTART			(1 << 0)
#	define MGA_PAGPXFER			(1 << 1)
#define MGA_PRIMPTR			0x1e50
#	define MGA_PRIMPTREN0			(1 << 0)
#	define MGA_PRIMPTREN1			(1 << 1)

#define MGA_RST 			0x1e40
#	define MGA_SOFTRESET			(1 << 0)
#	define MGA_SOFTEXTRST			(1 << 1)

#define MGA_SECADDRESS 			0x2c40
#define MGA_SECEND 			0x2c44
#define MGA_SETUPADDRESS 		0x2cd0
#define MGA_SETUPEND 			0x2cd4
#define MGA_SOFTRAP			0x2c48
#define MGA_SRCORG 			0x2cb4
#	define MGA_SRMMAP_MASK			(1 << 0)
#	define MGA_SRCMAP_FB			(0 << 0)
#	define MGA_SRCMAP_SYSMEM		(1 << 0)
#	define MGA_SRCACC_MASK			(1 << 1)
#	define MGA_SRCACC_PCI			(0 << 1)
#	define MGA_SRCACC_AGP			(1 << 1)
#define MGA_STATUS 			0x1e14
#	define MGA_SOFTRAPEN			(1 << 0)
#	define MGA_DWGENGSTS			(1 << 16)
#	define MGA_ENDPRDMASTS			(1 << 17)
#define MGA_STENCIL			0x2cc8
#define MGA_STENCILCTL 			0x2ccc

#define MGA_TDUALSTAGE0 		0x2cf8
#define MGA_TDUALSTAGE1 		0x2cfc
#define MGA_TEXBORDERCOL 		0x2c5c
#define MGA_TEXCTL 			0x2c30
#define MGA_TEXCTL2			0x2c3c
#	define MGA_DUALTEX			(1 << 7)
#	define MGA_G400_TC2_MAGIC		(1 << 15)
#	define MGA_MAP1_ENABLE			(1 << 31)
#define MGA_TEXFILTER 			0x2c58
#define MGA_TEXHEIGHT 			0x2c2c
#define MGA_TEXORG 			0x2c24
#	define MGA_TEXORGMAP_MASK		(1 << 0)
#	define MGA_TEXORGMAP_FB			(0 << 0)
#	define MGA_TEXORGMAP_SYSMEM		(1 << 0)
#	define MGA_TEXORGACC_MASK		(1 << 1)
#	define MGA_TEXORGACC_PCI		(0 << 1)
#	define MGA_TEXORGACC_AGP		(1 << 1)
#define MGA_TEXORG1			0x2ca4
#define MGA_TEXORG2			0x2ca8
#define MGA_TEXORG3			0x2cac
#define MGA_TEXORG4			0x2cb0
#define MGA_TEXTRANS 			0x2c34
#define MGA_TEXTRANSHIGH 		0x2c38
#define MGA_TEXWIDTH 			0x2c28

#define MGA_WACCEPTSEQ 			0x1dd4
#define MGA_WCODEADDR 			0x1e6c
#define MGA_WFLAG 			0x1dc4
#define MGA_WFLAG1 			0x1de0
#define MGA_WFLAGNB			0x1e64
#define MGA_WFLAGNB1 			0x1e08
#define MGA_WGETMSB			0x1dc8
#define MGA_WIADDR 			0x1dc0
#define MGA_WIADDR2			0x1dd8
#	define MGA_WMODE_SUSPEND		(0 << 0)
#	define MGA_WMODE_RESUME			(1 << 0)
#	define MGA_WMODE_JUMP			(2 << 0)
#	define MGA_WMODE_START			(3 << 0)
#	define MGA_WAGP_ENABLE			(1 << 2)
#define MGA_WMISC 			0x1e70
#	define MGA_WUCODECACHE_ENABLE		(1 << 0)
#	define MGA_WMASTER_ENABLE		(1 << 1)
#	define MGA_WCACHEFLUSH_ENABLE		(1 << 3)
#define MGA_WVRTXSZ			0x1dcc

#define MGA_YBOT 			0x1c9c
#define MGA_YDST 			0x1c90
#define MGA_YDSTLEN			0x1c88
#define MGA_YDSTORG			0x1c94
#define MGA_YTOP 			0x1c98

#define MGA_ZORG 			0x1c0c

/* This finishes the current batch of commands
 */
#define MGA_EXEC 			0x0100

/* Warp registers
 */
#define MGA_WR0				0x2d00
#define MGA_WR1				0x2d04
#define MGA_WR2				0x2d08
#define MGA_WR3				0x2d0c
#define MGA_WR4				0x2d10
#define MGA_WR5				0x2d14
#define MGA_WR6				0x2d18
#define MGA_WR7				0x2d1c
#define MGA_WR8				0x2d20
#define MGA_WR9				0x2d24
#define MGA_WR10			0x2d28
#define MGA_WR11			0x2d2c
#define MGA_WR12			0x2d30
#define MGA_WR13			0x2d34
#define MGA_WR14			0x2d38
#define MGA_WR15			0x2d3c
#define MGA_WR16			0x2d40
#define MGA_WR17			0x2d44
#define MGA_WR18			0x2d48
#define MGA_WR19			0x2d4c
#define MGA_WR20			0x2d50
#define MGA_WR21			0x2d54
#define MGA_WR22			0x2d58
#define MGA_WR23			0x2d5c
#define MGA_WR24			0x2d60
#define MGA_WR25			0x2d64
#define MGA_WR26			0x2d68
#define MGA_WR27			0x2d6c
#define MGA_WR28			0x2d70
#define MGA_WR29			0x2d74
#define MGA_WR30			0x2d78
#define MGA_WR31			0x2d7c
#define MGA_WR32			0x2d80
#define MGA_WR33			0x2d84
#define MGA_WR34			0x2d88
#define MGA_WR35			0x2d8c
#define MGA_WR36			0x2d90
#define MGA_WR37			0x2d94
#define MGA_WR38			0x2d98
#define MGA_WR39			0x2d9c
#define MGA_WR40			0x2da0
#define MGA_WR41			0x2da4
#define MGA_WR42			0x2da8
#define MGA_WR43			0x2dac
#define MGA_WR44			0x2db0
#define MGA_WR45			0x2db4
#define MGA_WR46			0x2db8
#define MGA_WR47			0x2dbc
#define MGA_WR48			0x2dc0
#define MGA_WR49			0x2dc4
#define MGA_WR50			0x2dc8
#define MGA_WR51			0x2dcc
#define MGA_WR52			0x2dd0
#define MGA_WR53			0x2dd4
#define MGA_WR54			0x2dd8
#define MGA_WR55			0x2ddc
#define MGA_WR56			0x2de0
#define MGA_WR57			0x2de4
#define MGA_WR58			0x2de8
#define MGA_WR59			0x2dec
#define MGA_WR60			0x2df0
#define MGA_WR61			0x2df4
#define MGA_WR62			0x2df8
#define MGA_WR63			0x2dfc
#	define MGA_G400_WR_MAGIC		(1 << 6)
#	define MGA_G400_WR56_MAGIC		0x46480000	/* 12800.0f */


#define MGA_ILOAD_ALIGN		64
#define MGA_ILOAD_MASK		(MGA_ILOAD_ALIGN - 1)

#define MGA_DWGCTL_FLUSH	(MGA_OPCOD_TEXTURE_TRAP |		\
				 MGA_ATYPE_I |				\
				 MGA_ZMODE_NOZCMP |			\
				 MGA_ARZERO |				\
				 MGA_SGNZERO |				\
				 MGA_BOP_SRC |				\
				 (15 << MGA_TRANS_SHIFT))

#define MGA_DWGCTL_CLEAR	(MGA_OPCOD_TRAP |			\
				 MGA_ZMODE_NOZCMP |			\
				 MGA_SOLID |				\
				 MGA_ARZERO |				\
				 MGA_SGNZERO |				\
				 MGA_SHIFTZERO |			\
				 MGA_BOP_SRC |				\
				 (0 << MGA_TRANS_SHIFT) |		\
				 MGA_BLTMOD_BMONOLEF |			\
				 MGA_TRANSC |				\
				 MGA_CLIPDIS)

#define MGA_DWGCTL_COPY		(MGA_OPCOD_BITBLT |			\
				 MGA_ATYPE_RPL |			\
				 MGA_SGNZERO |				\
				 MGA_SHIFTZERO |			\
				 MGA_BOP_SRC |				\
				 (0 << MGA_TRANS_SHIFT) |		\
				 MGA_BLTMOD_BFCOL |			\
				 MGA_CLIPDIS)





#define MGA_CLEAR_CMD (DC_opcod_trap | DC_arzero_enable | 		\
		       DC_sgnzero_enable | DC_shftzero_enable | 	\
		       (0xC << DC_bop_SHIFT) | DC_clipdis_enable | 	\
		       DC_solid_enable | DC_transc_enable)


#define MGA_COPY_CMD (DC_opcod_bitblt | DC_atype_rpl | DC_linear_xy |	\
		      DC_solid_disable | DC_arzero_disable | 		\
		      DC_sgnzero_enable | DC_shftzero_enable | 		\
		      (0xC << DC_bop_SHIFT) | DC_bltmod_bfcol | 	\
		      DC_pattern_disable | DC_transc_disable | 		\
		      DC_clipdis_enable)				\

#define MGA_FLUSH_CMD (DC_opcod_texture_trap | (0xF << DC_trans_SHIFT) |\
		       DC_arzero_enable | DC_sgnzero_enable |		\
		       DC_atype_i)


#define PDEA_pagpxfer_enable			0x2

#define WIA_wmode_suspend			0x0
#define WIA_wmode_start 			0x3
#define WIA_wagp_agp				0x4

#define DC_opcod_line_open 			0x0
#define DC_opcod_autoline_open 			0x1
#define DC_opcod_line_close 			0x2
#define DC_opcod_autoline_close 		0x3
#define DC_opcod_trap 				0x4
#define DC_opcod_texture_trap 			0x6
#define DC_opcod_bitblt 			0x8
#define DC_opcod_iload 				0x9
#define DC_atype_rpl 				0x0
#define DC_atype_rstr 				0x10
#define DC_atype_zi 				0x30
#define DC_atype_blk 				0x40
#define DC_atype_i 				0x70
#define DC_linear_xy 				0x0
#define DC_linear_linear 			0x80
#define DC_zmode_nozcmp 			0x0
#define DC_zmode_ze 				0x200
#define DC_zmode_zne 				0x300
#define DC_zmode_zlt 				0x400
#define DC_zmode_zlte 				0x500
#define DC_zmode_zgt 				0x600
#define DC_zmode_zgte 				0x700
#define DC_solid_disable 			0x0
#define DC_solid_enable 			0x800
#define DC_arzero_disable 			0x0
#define DC_arzero_enable 			0x1000
#define DC_sgnzero_disable 			0x0
#define DC_sgnzero_enable 			0x2000
#define DC_shftzero_disable 			0x0
#define DC_shftzero_enable 			0x4000
#define DC_bop_SHIFT 				16
#define DC_trans_SHIFT 				20
#define DC_bltmod_bmonolef 			0x0
#define DC_bltmod_bmonowf 			0x8000000
#define DC_bltmod_bplan 			0x2000000
#define DC_bltmod_bfcol 			0x4000000
#define DC_bltmod_bu32bgr 			0x6000000
#define DC_bltmod_bu32rgb 			0xe000000
#define DC_bltmod_bu24bgr 			0x16000000
#define DC_bltmod_bu24rgb 			0x1e000000
#define DC_pattern_disable 			0x0
#define DC_pattern_enable 			0x20000000
#define DC_transc_disable 			0x0
#define DC_transc_enable 			0x40000000
#define DC_clipdis_disable 			0x0
#define DC_clipdis_enable 			0x80000000


#define SETADD_mode_vertlist                   	0x0


#define MGA_CLEAR_CMD (DC_opcod_trap | DC_arzero_enable | 		\
		       DC_sgnzero_enable | DC_shftzero_enable | 	\
		       (0xC << DC_bop_SHIFT) | DC_clipdis_enable | 	\
		       DC_solid_enable | DC_transc_enable)


#define MGA_COPY_CMD (DC_opcod_bitblt | DC_atype_rpl | DC_linear_xy |	\
		      DC_solid_disable | DC_arzero_disable | 		\
		      DC_sgnzero_enable | DC_shftzero_enable | 		\
		      (0xC << DC_bop_SHIFT) | DC_bltmod_bfcol | 	\
		      DC_pattern_disable | DC_transc_disable | 		\
		      DC_clipdis_enable)				\

#define MGA_FLUSH_CMD (DC_opcod_texture_trap | (0xF << DC_trans_SHIFT) |\
		       DC_arzero_enable | DC_sgnzero_enable |		\
		       DC_atype_i)

#endif