mga_state.c

h内核

/* mga_state.c -- State support for MGA G200/G400 -*- linux-c -*-
 * Created: Thu Jan 27 02:53:43 2000 by [e-mail]
 *
 * 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:
 *    Jeff Hartmann <[e-mail]>
 *    Keith Whitwell <[e-mail]>
 *
 * Rewritten by:
 *    Gareth Hughes <[e-mail]>
 */

#include "drmP.h"
#include "drm.h"
#include "mga_drm.h"
#include "mga_drv.h"

drm_ioctl_desc_t mga_ioctls[] = {
	[DRM_IOCTL_NR(DRM_MGA_INIT)]    = { mga_dma_init,    1, 1 },
	[DRM_IOCTL_NR(DRM_MGA_FLUSH)]   = { mga_dma_flush,   1, 0 },
	[DRM_IOCTL_NR(DRM_MGA_RESET)]   = { mga_dma_reset,   1, 0 },
	[DRM_IOCTL_NR(DRM_MGA_SWAP)]    = { mga_dma_swap,    1, 0 },
	[DRM_IOCTL_NR(DRM_MGA_CLEAR)]   = { mga_dma_clear,   1, 0 },
	[DRM_IOCTL_NR(DRM_MGA_VERTEX)]  = { mga_dma_vertex,  1, 0 },
	[DRM_IOCTL_NR(DRM_MGA_INDICES)] = { mga_dma_indices, 1, 0 },
	[DRM_IOCTL_NR(DRM_MGA_ILOAD)]   = { mga_dma_iload,   1, 0 },
	[DRM_IOCTL_NR(DRM_MGA_BLIT)]    = { mga_dma_blit,    1, 0 },
	[DRM_IOCTL_NR(DRM_MGA_GETPARAM)]= { mga_getparam,    1, 0 },
};

int mga_max_ioctl = DRM_ARRAY_SIZE(mga_ioctls);

/* ================================================================
 * DMA hardware state programming functions
 */

static void mga_emit_clip_rect( drm_mga_private_t *dev_priv,
				drm_clip_rect_t *box )
{
	drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
	drm_mga_context_regs_t *ctx = &sarea_priv->context_state;
	unsigned int pitch = dev_priv->front_pitch;
	DMA_LOCALS;

	BEGIN_DMA( 2 );

	/* Force reset of DWGCTL on G400 (eliminates clip disable bit).
	 */
	if ( dev_priv->chipset == MGA_CARD_TYPE_G400 ) {
		DMA_BLOCK( MGA_DWGCTL,		ctx->dwgctl,
			   MGA_LEN + MGA_EXEC,	0x80000000,
			   MGA_DWGCTL,		ctx->dwgctl,
			   MGA_LEN + MGA_EXEC,	0x80000000 );
	}
	DMA_BLOCK( MGA_DMAPAD,	0x00000000,
		   MGA_CXBNDRY,	(box->x2 << 16) | box->x1,
		   MGA_YTOP,	box->y1 * pitch,
		   MGA_YBOT,	box->y2 * pitch );

	ADVANCE_DMA();
}

static __inline__ void mga_g200_emit_context( drm_mga_private_t *dev_priv )
{
	drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
	drm_mga_context_regs_t *ctx = &sarea_priv->context_state;
	DMA_LOCALS;

	BEGIN_DMA( 3 );

	DMA_BLOCK( MGA_DSTORG,		ctx->dstorg,
		   MGA_MACCESS,		ctx->maccess,
		   MGA_PLNWT,		ctx->plnwt,
		   MGA_DWGCTL,		ctx->dwgctl );

	DMA_BLOCK( MGA_ALPHACTRL,	ctx->alphactrl,
		   MGA_FOGCOL,		ctx->fogcolor,
		   MGA_WFLAG,		ctx->wflag,
		   MGA_ZORG,		dev_priv->depth_offset );

	DMA_BLOCK( MGA_FCOL,		ctx->fcol,
		   MGA_DMAPAD,		0x00000000,
		   MGA_DMAPAD,		0x00000000,
		   MGA_DMAPAD,		0x00000000 );

	ADVANCE_DMA();
}

static __inline__ void mga_g400_emit_context( drm_mga_private_t *dev_priv )
{
	drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
	drm_mga_context_regs_t *ctx = &sarea_priv->context_state;
	DMA_LOCALS;

	BEGIN_DMA( 4 );

	DMA_BLOCK( MGA_DSTORG,		ctx->dstorg,
		   MGA_MACCESS,		ctx->maccess,
		   MGA_PLNWT,		ctx->plnwt,
		   MGA_DWGCTL,		ctx->dwgctl );

	DMA_BLOCK( MGA_ALPHACTRL,	ctx->alphactrl,
		   MGA_FOGCOL,		ctx->fogcolor,
		   MGA_WFLAG,		ctx->wflag,
		   MGA_ZORG,		dev_priv->depth_offset );

	DMA_BLOCK( MGA_WFLAG1,		ctx->wflag,
		   MGA_TDUALSTAGE0,	ctx->tdualstage0,
		   MGA_TDUALSTAGE1,	ctx->tdualstage1,
		   MGA_FCOL,		ctx->fcol );

	DMA_BLOCK( MGA_STENCIL,		ctx->stencil,
		   MGA_STENCILCTL,	ctx->stencilctl,
		   MGA_DMAPAD,		0x00000000,
		   MGA_DMAPAD,		0x00000000 );

	ADVANCE_DMA();
}

static __inline__ void mga_g200_emit_tex0( drm_mga_private_t *dev_priv )
{
	drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
	drm_mga_texture_regs_t *tex = &sarea_priv->tex_state[0];
	DMA_LOCALS;

	BEGIN_DMA( 4 );

	DMA_BLOCK( MGA_TEXCTL2,		tex->texctl2,
		   MGA_TEXCTL,		tex->texctl,
		   MGA_TEXFILTER,	tex->texfilter,
		   MGA_TEXBORDERCOL,	tex->texbordercol );

	DMA_BLOCK( MGA_TEXORG,		tex->texorg,
		   MGA_TEXORG1,		tex->texorg1,
		   MGA_TEXORG2,		tex->texorg2,
		   MGA_TEXORG3,		tex->texorg3 );

	DMA_BLOCK( MGA_TEXORG4,		tex->texorg4,
		   MGA_TEXWIDTH,	tex->texwidth,
		   MGA_TEXHEIGHT,	tex->texheight,
		   MGA_WR24,		tex->texwidth );

	DMA_BLOCK( MGA_WR34,		tex->texheight,
		   MGA_TEXTRANS,	0x0000ffff,
		   MGA_TEXTRANSHIGH,	0x0000ffff,
		   MGA_DMAPAD,		0x00000000 );

	ADVANCE_DMA();
}

static __inline__ void mga_g400_emit_tex0( drm_mga_private_t *dev_priv )
{
	drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
	drm_mga_texture_regs_t *tex = &sarea_priv->tex_state[0];
	DMA_LOCALS;

/*  	printk("mga_g400_emit_tex0 %x %x %x\n", tex->texorg, */
/*  	       tex->texctl, tex->texctl2); */

	BEGIN_DMA( 6 );

	DMA_BLOCK( MGA_TEXCTL2,		tex->texctl2 | MGA_G400_TC2_MAGIC,
		   MGA_TEXCTL,		tex->texctl,
		   MGA_TEXFILTER,	tex->texfilter,
		   MGA_TEXBORDERCOL,	tex->texbordercol );

	DMA_BLOCK( MGA_TEXORG,		tex->texorg,
		   MGA_TEXORG1,		tex->texorg1,
		   MGA_TEXORG2,		tex->texorg2,
		   MGA_TEXORG3,		tex->texorg3 );

	DMA_BLOCK( MGA_TEXORG4,		tex->texorg4,
		   MGA_TEXWIDTH,	tex->texwidth,
		   MGA_TEXHEIGHT,	tex->texheight,
		   MGA_WR49,		0x00000000 );

	DMA_BLOCK( MGA_WR57,		0x00000000,
		   MGA_WR53,		0x00000000,
		   MGA_WR61,		0x00000000,
		   MGA_WR52,		MGA_G400_WR_MAGIC );

	DMA_BLOCK( MGA_WR60,		MGA_G400_WR_MAGIC,
		   MGA_WR54,		tex->texwidth | MGA_G400_WR_MAGIC,
		   MGA_WR62,		tex->texheight | MGA_G400_WR_MAGIC,
		   MGA_DMAPAD,		0x00000000 );

	DMA_BLOCK( MGA_DMAPAD,		0x00000000,
		   MGA_DMAPAD,		0x00000000,
		   MGA_TEXTRANS,	0x0000ffff,
		   MGA_TEXTRANSHIGH,	0x0000ffff );

	ADVANCE_DMA();
}

static __inline__ void mga_g400_emit_tex1( drm_mga_private_t *dev_priv )
{
	drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
	drm_mga_texture_regs_t *tex = &sarea_priv->tex_state[1];
	DMA_LOCALS;

/*  	printk("mga_g400_emit_tex1 %x %x %x\n", tex->texorg,  */
/*  	       tex->texctl, tex->texctl2); */

	BEGIN_DMA( 5 );

	DMA_BLOCK( MGA_TEXCTL2,		(tex->texctl2 |
					 MGA_MAP1_ENABLE |
					 MGA_G400_TC2_MAGIC),
		   MGA_TEXCTL,		tex->texctl,
		   MGA_TEXFILTER,	tex->texfilter,
		   MGA_TEXBORDERCOL,	tex->texbordercol );

	DMA_BLOCK( MGA_TEXORG,		tex->texorg,
		   MGA_TEXORG1,		tex->texorg1,
		   MGA_TEXORG2,		tex->texorg2,
		   MGA_TEXORG3,		tex->texorg3 );

	DMA_BLOCK( MGA_TEXORG4,		tex->texorg4,
		   MGA_TEXWIDTH,	tex->texwidth,
		   MGA_TEXHEIGHT,	tex->texheight,
		   MGA_WR49,		0x00000000 );

	DMA_BLOCK( MGA_WR57,		0x00000000,
		   MGA_WR53,		0x00000000,
		   MGA_WR61,		0x00000000,
		   MGA_WR52,		tex->texwidth | MGA_G400_WR_MAGIC );

	DMA_BLOCK( MGA_WR60,		tex->texheight | MGA_G400_WR_MAGIC,
		   MGA_TEXTRANS,	0x0000ffff,
		   MGA_TEXTRANSHIGH,	0x0000ffff,
		   MGA_TEXCTL2,		tex->texctl2 | MGA_G400_TC2_MAGIC );

	ADVANCE_DMA();
}

static __inline__ void mga_g200_emit_pipe( drm_mga_private_t *dev_priv )
{
	drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
	unsigned int pipe = sarea_priv->warp_pipe;
	DMA_LOCALS;

	BEGIN_DMA( 3 );

	DMA_BLOCK( MGA_WIADDR,	MGA_WMODE_SUSPEND,
		   MGA_WVRTXSZ,	0x00000007,
		   MGA_WFLAG,	0x00000000,
		   MGA_WR24,	0x00000000 );

	DMA_BLOCK( MGA_WR25,	0x00000100,
		   MGA_WR34,	0x00000000,
		   MGA_WR42,	0x0000ffff,
		   MGA_WR60,	0x0000ffff );

	/* Padding required to to hardware bug.
	 */
	DMA_BLOCK( MGA_DMAPAD,	0xffffffff,
		   MGA_DMAPAD,	0xffffffff,
		   MGA_DMAPAD,	0xffffffff,
		   MGA_WIADDR,	(dev_priv->warp_pipe_phys[pipe] |
				 MGA_WMODE_START |
				 MGA_WAGP_ENABLE) );

	ADVANCE_DMA();
}

static __inline__ void mga_g400_emit_pipe( drm_mga_private_t *dev_priv )
{
	drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
	unsigned int pipe = sarea_priv->warp_pipe;
	DMA_LOCALS;

/*  	printk("mga_g400_emit_pipe %x\n", pipe); */

	BEGIN_DMA( 10 );

	DMA_BLOCK( MGA_WIADDR2,	MGA_WMODE_SUSPEND,
		   MGA_DMAPAD,	0x00000000,
		   MGA_DMAPAD,	0x00000000,
		   MGA_DMAPAD,	0x00000000 );

	if ( pipe & MGA_T2 ) {
		DMA_BLOCK( MGA_WVRTXSZ,		0x00001e09,
			   MGA_DMAPAD,		0x00000000,
			   MGA_DMAPAD,		0x00000000,
			   MGA_DMAPAD,		0x00000000 );

		DMA_BLOCK( MGA_WACCEPTSEQ,	0x00000000,
			   MGA_WACCEPTSEQ,	0x00000000,
			   MGA_WACCEPTSEQ,	0x00000000,
			   MGA_WACCEPTSEQ,	0x1e000000 );
	} else {
		if ( dev_priv->warp_pipe & MGA_T2 ) {
			/* Flush the WARP pipe */
			DMA_BLOCK( MGA_YDST,		0x00000000,
				   MGA_FXLEFT,		0x00000000,
				   MGA_FXRIGHT,		0x00000001,
				   MGA_DWGCTL,		MGA_DWGCTL_FLUSH );

			DMA_BLOCK( MGA_LEN + MGA_EXEC,	0x00000001,
				   MGA_DWGSYNC,		0x00007000,
				   MGA_TEXCTL2,		MGA_G400_TC2_MAGIC,
				   MGA_LEN + MGA_EXEC,	0x00000000 );

			DMA_BLOCK( MGA_TEXCTL2,		(MGA_DUALTEX |
							 MGA_G400_TC2_MAGIC),
				   MGA_LEN + MGA_EXEC,	0x00000000,
				   MGA_TEXCTL2,		MGA_G400_TC2_MAGIC,
				   MGA_DMAPAD,		0x00000000 );
		}

		DMA_BLOCK( MGA_WVRTXSZ,		0x00001807,
			   MGA_DMAPAD,		0x00000000,
			   MGA_DMAPAD,		0x00000000,
			   MGA_DMAPAD,		0x00000000 );

		DMA_BLOCK( MGA_WACCEPTSEQ,	0x00000000,
			   MGA_WACCEPTSEQ,	0x00000000,
			   MGA_WACCEPTSEQ,	0x00000000,
			   MGA_WACCEPTSEQ,	0x18000000 );
	}

	DMA_BLOCK( MGA_WFLAG,	0x00000000,
		   MGA_WFLAG1,	0x00000000,
		   MGA_WR56,	MGA_G400_WR56_MAGIC,
		   MGA_DMAPAD,	0x00000000 );

	DMA_BLOCK( MGA_WR49,	0x00000000,		/* tex0              */
		   MGA_WR57,	0x00000000,		/* tex0              */
		   MGA_WR53,	0x00000000,		/* tex1              */
		   MGA_WR61,	0x00000000 );		/* tex1              */

	DMA_BLOCK( MGA_WR54,	MGA_G400_WR_MAGIC,	/* tex0 width        */
		   MGA_WR62,	MGA_G400_WR_MAGIC,	/* tex0 height       */
		   MGA_WR52,	MGA_G400_WR_MAGIC,	/* tex1 width        */
		   MGA_WR60,	MGA_G400_WR_MAGIC );	/* tex1 height       */

	/* Padding required to to hardware bug */
	DMA_BLOCK( MGA_DMAPAD,	0xffffffff,
		   MGA_DMAPAD,	0xffffffff,
		   MGA_DMAPAD,	0xffffffff,
		   MGA_WIADDR2,	(dev_priv->warp_pipe_phys[pipe] |
				 MGA_WMODE_START |
				 MGA_WAGP_ENABLE) );

	ADVANCE_DMA();
}

static void mga_g200_emit_state( drm_mga_private_t *dev_priv )
{
	drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
	unsigned int dirty = sarea_priv->dirty;

	if ( sarea_priv->warp_pipe != dev_priv->warp_pipe ) {
		mga_g200_emit_pipe( dev_priv );
		dev_priv->warp_pipe = sarea_priv->warp_pipe;
	}

	if ( dirty & MGA_UPLOAD_CONTEXT ) {
		mga_g200_emit_context( dev_priv );
		sarea_priv->dirty &= ~MGA_UPLOAD_CONTEXT;
	}

	if ( dirty & MGA_UPLOAD_TEX0 ) {
		mga_g200_emit_tex0( dev_priv );
		sarea_priv->dirty &= ~MGA_UPLOAD_TEX0;
	}
}

static void mga_g400_emit_state( drm_mga_private_t *dev_priv )
{
	drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
	unsigned int dirty = sarea_priv->dirty;
	int multitex = sarea_priv->warp_pipe & MGA_T2;

	if ( sarea_priv->warp_pipe != dev_priv->warp_pipe ) {
		mga_g400_emit_pipe( dev_priv );
		dev_priv->warp_pipe = sarea_priv->warp_pipe;
	}

	if ( dirty & MGA_UPLOAD_CONTEXT ) {
		mga_g400_emit_context( dev_priv );
		sarea_priv->dirty &= ~MGA_UPLOAD_CONTEXT;
	}

	if ( dirty & MGA_UPLOAD_TEX0 ) {
		mga_g400_emit_tex0( dev_priv );
		sarea_priv->dirty &= ~MGA_UPLOAD_TEX0;
	}

	if ( (dirty & MGA_UPLOAD_TEX1) && multitex ) {
		mga_g400_emit_tex1( dev_priv );
		sarea_priv->dirty &= ~MGA_UPLOAD_TEX1;
	}
}


/* ================================================================
 * SAREA state verification
 */

/* Disallow all write destinations except the front and backbuffer.
 */
static int mga_verify_context( drm_mga_private_t *dev_priv )
{
	drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
	drm_mga_context_regs_t *ctx = &sarea_priv->context_state;

	if ( ctx->dstorg != dev_priv->front_offset &&
	     ctx->dstorg != dev_priv->back_offset ) {
		DRM_ERROR( "*** bad DSTORG: %x (front %x, back %x)\n\n",
			   ctx->dstorg, dev_priv->front_offset,
			   dev_priv->back_offset );
		ctx->dstorg = 0;
		return DRM_ERR(EINVAL);
	}

	return 0;
}

/* Disallow texture reads from PCI space.
 */
static int mga_verify_tex( drm_mga_private_t *dev_priv, int unit )
{
	drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
	drm_mga_texture_regs_t *tex = &sarea_priv->tex_state[unit];
	unsigned int org;

	org = tex->texorg & (MGA_TEXORGMAP_MASK | MGA_TEXORGACC_MASK);

	if ( org == (MGA_TEXORGMAP_SYSMEM | MGA_TEXORGACC_PCI) ) {
		DRM_ERROR( "*** bad TEXORG: 0x%x, unit %d\n",
			   tex->texorg, unit );
		tex->texorg = 0;
		return DRM_ERR(EINVAL);
	}

	return 0;
}

static int mga_verify_state( drm_mga_private_t *dev_priv )
{
	drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
	unsigned int dirty = sarea_priv->dirty;
	int ret = 0;

	if ( sarea_priv->nbox > MGA_NR_SAREA_CLIPRECTS )
		sarea_priv->nbox = MGA_NR_SAREA_CLIPRECTS;

	if ( dirty & MGA_UPLOAD_CONTEXT )
		ret |= mga_verify_context( dev_priv );

	if ( dirty & MGA_UPLOAD_TEX0 )
		ret |= mga_verify_tex( dev_priv, 0 );

	if ( dev_priv->chipset == MGA_CARD_TYPE_G400 ) {
		if ( dirty & MGA_UPLOAD_TEX1 )
			ret |= mga_verify_tex( dev_priv, 1 );

		if ( dirty & MGA_UPLOAD_PIPE )
			ret |= ( sarea_priv->warp_pipe > MGA_MAX_G400_PIPES );
	} else {
		if ( dirty & MGA_UPLOAD_PIPE )
			ret |= ( sarea_priv->warp_pipe > MGA_MAX_G200_PIPES );
	}

	return ( ret == 0 );
}

static int mga_verify_iload( drm_mga_private_t *dev_priv,
			     unsigned int dstorg, unsigned int length )
{
	if ( dstorg < dev_priv->texture_offset ||
	     dstorg + length > (dev_priv->texture_offset +
				dev_priv->texture_size) ) {
		DRM_ERROR( "*** bad iload DSTORG: 0x%x\n", dstorg );
		return DRM_ERR(EINVAL);
	}

	if ( length & MGA_ILOAD_MASK ) {
		DRM_ERROR( "*** bad iload length: 0x%x\n",
			   length & MGA_ILOAD_MASK );
		return DRM_ERR(EINVAL);
	}

	return 0;
}

static int mga_verify_blit( drm_mga_private_t *dev_priv,
			    unsigned int srcorg, unsigned int dstorg )
{
	if ( (srcorg & 0x3) == (MGA_SRCACC_PCI | MGA_SRCMAP_SYSMEM) ||
	     (dstorg & 0x3) == (MGA_SRCACC_PCI | MGA_SRCMAP_SYSMEM) ) {
		DRM_ERROR( "*** bad blit: src=0x%x dst=0x%x\n",
			   srcorg, dstorg );
		return DRM_ERR(EINVAL);
	}
	return 0;
}


/* ================================================================
 *
 */

static void mga_dma_dispatch_clear( drm_device_t *dev,
				    drm_mga_clear_t *clear )
{
	drm_mga_private_t *dev_priv = dev->dev_private;
	drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
	drm_mga_context_regs_t *ctx = &sarea_priv->context_state;
	drm_clip_rect_t *pbox = sarea_priv->boxes;
	int nbox = sarea_priv->nbox;
	int i;
	DMA_LOCALS;
	DRM_DEBUG( "\n" );

	BEGIN_DMA( 1 );

	DMA_BLOCK( MGA_DMAPAD,	0x00000000,
		   MGA_DMAPAD,	0x00000000,
		   MGA_DWGSYNC,	0x00007100,
		   MGA_DWGSYNC,	0x00007000 );

	ADVANCE_DMA();

	for ( i = 0 ; i < nbox ; i++ ) {
		drm_clip_rect_t *box = &pbox[i];
		u32 height = box->y2 - box->y1;

		DRM_DEBUG( "   from=%d,%d to=%d,%d\n",
			   box->x1, box->y1, box->x2, box->y2 );

		if ( clear->flags & MGA_FRONT ) {
			BEGIN_DMA( 2 );

			DMA_BLOCK( MGA_DMAPAD,	0x00000000,
				   MGA_PLNWT,	clear->color_mask,
				   MGA_YDSTLEN, (box->y1 << 16) | height,
				   MGA_FXBNDRY, (box->x2 << 16) | box->x1 );