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authorLaurent Pinchart <laurent.pinchart@ideasonboard.com>2016-06-17 01:41:28 +0300
committerLaurent Pinchart <laurent.pinchart@ideasonboard.com>2016-06-19 15:30:57 +0300
commit6b5959c04c5afebded4471430fa7eceac81c1183 (patch)
tree42a81534ca2f0aea760738f406aa6abff515519f /tests/vsp-unit-test-0019.sh
parent5b4c47d86bb887ead31419e54a55cec216c5bae3 (diff)
vsp-lib: Add CLU and LUT pipelines support
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Diffstat (limited to 'tests/vsp-unit-test-0019.sh')
0 files changed, 0 insertions, 0 deletions
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/* sis_mm.c -- Private header for Direct Rendering Manager -*- linux-c -*-
 * Created: Mon Jan  4 10:05:05 1999 by sclin@sis.com.tw
 *
 * Copyright 2000 Silicon Integrated Systems Corp, Inc., HsinChu, Taiwan.
 * 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
 * PRECISION INSIGHT 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:
 *    Sung-Ching Lin <sclin@sis.com.tw>
 * 
 */

#define __NO_VERSION__
#include "sis.h"
#include <linux/sisfb.h>
#include "drmP.h"
#include "sis_drm.h"
#include "sis_drv.h"
#include "sis_ds.h"

#define MAX_CONTEXT 100
#define VIDEO_TYPE 0 
#define AGP_TYPE 1

typedef struct {
  int used;
  int context;
  set_t *sets[2]; /* 0 for video, 1 for AGP */
} sis_context_t;

static sis_context_t global_ppriv[MAX_CONTEXT];

static int add_alloc_set(int context, int type, unsigned int val)
{
  int i, retval = 0;
  
  for(i = 0; i < MAX_CONTEXT; i++)
    if(global_ppriv[i].used && global_ppriv[i].context == context){
      retval = setAdd(global_ppriv[i].sets[type], val);
      break;
    }
  return retval;
}

static int del_alloc_set(int context, int type, unsigned int val)
{  
  int i, retval = 0;
  for(i = 0; i < MAX_CONTEXT; i++)
    if(global_ppriv[i].used && global_ppriv[i].context == context){
      retval = setDel(global_ppriv[i].sets[type], val);
      break;
    }
  return retval;
}

/* fb management via fb device */ 
#if 1
int sis_fb_alloc(struct inode *inode, struct file *filp, unsigned int cmd,
		  unsigned long arg)
{
  drm_sis_mem_t fb;
  struct sis_memreq req;
  int retval = 0;
   
  if (copy_from_user(&fb, (drm_sis_mem_t *)arg, sizeof(fb)))
	  return -EFAULT;
  
  req.size = fb.size;
  sis_malloc(&req);
  if(req.offset){
    /* TODO */
    fb.offset = req.offset;
    fb.free = req.offset;
    if(!add_alloc_set(fb.context, VIDEO_TYPE, fb.free)){
      DRM_DEBUG("adding to allocation set fails\n");
      sis_free(req.offset);
      retval = -1;
    }
  }
  else{  
    fb.offset = 0;
    fb.size = 0;
    fb.free = 0;
  }
   
  if (copy_to_user((drm_sis_mem_t *)arg, &fb, sizeof(fb))) return -EFAULT;

  DRM_DEBUG("alloc fb, size = %d, offset = %ld\n", fb.size, req.offset);

  return retval;
}

int sis_fb_free(struct inode *inode, struct file *filp, unsigned int cmd,
		  unsigned long arg)
{
  drm_sis_mem_t fb;
  int retval = 0;
    
  if (copy_from_user(&fb, (drm_sis_mem_t *)arg, sizeof(fb)))
	  return -EFAULT;
  
  if(!fb.free){
    return -1;
  }

  sis_free(fb.free);
  if(!del_alloc_set(fb.context, VIDEO_TYPE, fb.free))
    retval = -1;

  DRM_DEBUG("free fb, offset = %d\n", fb.free);
  
  return retval;
}

#else

int sis_fb_alloc(struct inode *inode, struct file *filp, unsigned int cmd,
		  unsigned long arg)
{
  return -1;
}

int sis_fb_free(struct inode *inode, struct file *filp, unsigned int cmd,
		  unsigned long arg)
{
  return 0;
}

#endif

/* agp memory management */ 
#if 1

static memHeap_t *AgpHeap = NULL;

int sisp_agp_init(struct inode *inode, struct file *filp, unsigned int cmd,
		  unsigned long arg)
{
  drm_sis_agp_t agp;
   
  if (copy_from_user(&agp, (drm_sis_agp_t *)arg, sizeof(agp)))
	  return -EFAULT;

  AgpHeap = mmInit(agp.offset, agp.size);

  DRM_DEBUG("offset = %u, size = %u", agp.offset, agp.size);
  
  return 0;
}

int sisp_agp_alloc(struct inode *inode, struct file *filp, unsigned int cmd,
		  unsigned long arg)
{
  drm_sis_mem_t agp;
  PMemBlock block;
  int retval = 0;
   
  if(!AgpHeap)
    return -1;
  
  if (copy_from_user(&agp, (drm_sis_mem_t *)arg, sizeof(agp)))
	  return -EFAULT;
  
  block = mmAllocMem(AgpHeap, agp.size, 0, 0);
  if(block){
    /* TODO */
    agp.offset = block->ofs;
    agp.free = (unsigned long)block;
    if(!add_alloc_set(agp.context, AGP_TYPE, agp.free)){
      DRM_DEBUG("adding to allocation set fails\n");
      mmFreeMem((PMemBlock)(unsigned long)agp.free);
      retval = -1;
    }
  }
  else{  
    agp.offset = 0;
    agp.size = 0;
    agp.free = 0;
  }
   
  if (copy_to_user((drm_sis_mem_t *)arg, &agp, sizeof(agp))) return -EFAULT;

  DRM_DEBUG("alloc agp, size = %d, offset = %d\n", agp.size, agp.offset);

  return retval;
}

int sisp_agp_free(struct inode *inode, struct file *filp, unsigned int cmd,
		  unsigned long arg)
{
  drm_sis_mem_t agp;
  int retval = 0;

  if(!AgpHeap)
    return -1;
    
  if (copy_from_user(&agp, (drm_sis_mem_t *)arg, sizeof(agp)))
	  return -EFAULT;
  
  if(!agp.free){
    return -1;
  }

  mmFreeMem((PMemBlock)(unsigned long)agp.free);
  if(!del_alloc_set(agp.context, AGP_TYPE, agp.free))
    retval = -1;

  DRM_DEBUG("free agp, free = %d\n", agp.free);
  
  return retval;
}

#endif

int sis_init_context(int context)
{
	int i;
	
	for(i = 0; i < MAX_CONTEXT ; i++)
	  if(global_ppriv[i].used && (global_ppriv[i].context == context))
	    break;

	if(i >= MAX_CONTEXT){
	  for(i = 0; i < MAX_CONTEXT ; i++){
	    if(!global_ppriv[i].used){
	      global_ppriv[i].context = context;
	      global_ppriv[i].used = 1;l ppc">		} 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 != DRM_CURRENTPID ) {				\
		DRM_ERROR( "%s called without lock held\n",		\
			   __FUNCTION__ );					\
		return DRM_ERR(EINVAL);				\
	}								\
} while (0)

#define WRAP_TEST_WITH_RETURN( dev_priv )				\
do {									\
	if ( test_bit( 0, &dev_priv->prim.wrapped ) ) {			\
		if ( mga_is_idle( dev_priv ) ) {			\
			mga_do_dma_wrap_end( dev_priv );		\
		} else if ( dev_priv->prim.space <			\
			    dev_priv->prim.high_mark ) {		\
			if ( MGA_DMA_DEBUG )				\
				DRM_INFO( "%s: wrap...\n", __FUNCTION__ );	\
			return DRM_ERR(EBUSY);			\
		}							\
	}								\
} while (0)

#define WRAP_WAIT_WITH_RETURN( dev_priv )				\
do {									\
	if ( test_bit( 0, &dev_priv->prim.wrapped ) ) {			\
		if ( mga_do_wait_for_idle( dev_priv ) < 0 ) {		\
			if ( MGA_DMA_DEBUG )				\
				DRM_INFO( "%s: wrap...\n", __FUNCTION__ );	\
			return DRM_ERR(EBUSY);			\
		}							\
		mga_do_dma_wrap_end( dev_priv );			\
	}								\
} while (0)


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

#define MGA_VERBOSE	0

#define DMA_LOCALS	unsigned int write; volatile u8 *prim;

#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 );	\
	}								\
	prim = dev_priv->prim.start;					\
	write = dev_priv->prim.tail;					\
} while (0)

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

#define FLUSH_DMA()							\
do {									\
	if ( 0 ) {							\
		DRM_INFO( "%s:\n", __FUNCTION__ );				\
		DRM_INFO( "   tail=0x%06x head=0x%06lx\n",		\
			  dev_priv->prim.tail,				\
			  MGA_READ( MGA_PRIMADDRESS ) -			\
			  dev_priv->primary->offset );			\
	}								\
	if ( !test_bit( 0, &dev_priv->prim.wrapped ) ) {		\
		if ( dev_priv->prim.space <				\
		     dev_priv->prim.high_mark ) {			\
			mga_do_dma_wrap_start( dev_priv );		\
		} else {						\
			mga_do_dma_flush( dev_priv );			\
		}							\
	}								\
} 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 aging 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;		\
	if ( (buf_priv)->dispatched ) {					\
		entry->age.head = (dev_priv->prim.tail +		\
				   dev_priv->primary->offset);		\
		entry->age.wrap = dev_priv->sarea_priv->last_wrap;	\
	} else {							\
		entry->age.head = 0;					\
		entry->age.wrap = 0;					\
	}								\
} 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_DEBUG			0



/* A reduced set of the mga registers.
 */
#define MGA_CRTC_INDEX			0x1fd4
#define MGA_CRTC_DATA			0x1fd5

/* CRTC11 */
#define MGA_VINTCLR			(1 << 4)
#define MGA_VINTEN			(1 << 5)

#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_VLINEICLR			(1 << 5)
#define MGA_IEN 			0x1e1c
#	define MGA_SOFTRAPIEN			(1 << 0)
#	define MGA_VLINEIEN			(1 << 5)

#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_SGN				0x1c58
#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_VSYNCPEN			(1 << 4)
#	define MGA_VLINEPEN			(1 << 5)
#	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)

/* Simple idle test.
 */
static __inline__ int mga_is_idle( drm_mga_private_t *dev_priv )
{
	u32 status = MGA_READ( MGA_STATUS ) & MGA_ENGINE_IDLE_MASK;
	return ( status == MGA_ENDPRDMASTS );
}

#endif