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diff --git a/xc/programs/Xserver/hw/xfree86/drivers/geode/geode_dga.c b/xc/programs/Xserver/hw/xfree86/drivers/geode/geode_dga.c
new file mode 100644
index 000000000..42e36b725
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+++ b/xc/programs/Xserver/hw/xfree86/drivers/geode/geode_dga.c
@@ -0,0 +1,486 @@
+/*
+ * $Workfile: geode_dga.c $
+ * $Revision: 1.1.2.1 $
+ *
+ * File contents: DGA(Direct Acess Graphics mode) is feature of
+ * XFree86 that allows the program to access directly to video
+ * memory on the graphics card.DGA supports the double
+ * flickering.This file has the functions to support the DGA
+ * modes.
+ *
+ * Project: Geode Xfree Frame buffer device driver.
+ *
+ */
+
+/*
+ * NSC_LIC_ALTERNATIVE_PREAMBLE
+ *
+ * Revision 1.0
+ *
+ * National Semiconductor Alternative GPL-BSD License
+ *
+ * National Semiconductor Corporation licenses this software
+ * ("Software"):
+ *
+ * Geode Xfree frame buffer driver
+ *
+ * under one of the two following licenses, depending on how the
+ * Software is received by the Licensee.
+ *
+ * If this Software is received as part of the Linux Framebuffer or
+ * other GPL licensed software, then the GPL license designated
+ * NSC_LIC_GPL applies to this Software; in all other circumstances
+ * then the BSD-style license designated NSC_LIC_BSD shall apply.
+ *
+ * END_NSC_LIC_ALTERNATIVE_PREAMBLE */
+
+/* NSC_LIC_BSD
+ *
+ * National Semiconductor Corporation Open Source License for
+ *
+ * Geode Xfree frame buffer driver
+ *
+ * (BSD License with Export Notice)
+ *
+ * Copyright (c) 1999-2001
+ * National Semiconductor Corporation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials provided
+ * with the distribution.
+ *
+ * * Neither the name of the National Semiconductor Corporation nor
+ * the names of its contributors may be used to endorse or promote
+ * products derived from this software without specific prior
+ * written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * NATIONAL SEMICONDUCTOR CORPORATION OR CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+ * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+ * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE,
+ * INTELLECTUAL PROPERTY INFRINGEMENT, OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * EXPORT LAWS: THIS LICENSE ADDS NO RESTRICTIONS TO THE EXPORT LAWS OF
+ * YOUR JURISDICTION. It is licensee's responsibility to comply with
+ * any export regulations applicable in licensee's jurisdiction. Under
+ * CURRENT (2001) U.S. export regulations this software
+ * is eligible for export from the U.S. and can be downloaded by or
+ * otherwise exported or reexported worldwide EXCEPT to U.S. embargoed
+ * destinations which include Cuba, Iraq, Libya, North Korea, Iran,
+ * Syria, Sudan, Afghanistan and any other country to which the U.S.
+ * has embargoed goods and services.
+ *
+ * END_NSC_LIC_BSD */
+
+/* NSC_LIC_GPL
+ *
+ * National Semiconductor Corporation Gnu General Public License for
+ *
+ * Geode Xfree frame buffer driver
+ *
+ * (GPL License with Export Notice)
+ *
+ * Copyright (c) 1999-2001
+ * National Semiconductor Corporation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted under the terms of the GNU General
+ * Public License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version
+ *
+ * In addition to the terms of the GNU General Public License, neither
+ * the name of the National Semiconductor Corporation nor the names of
+ * its contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * NATIONAL SEMICONDUCTOR CORPORATION OR CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+ * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+ * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE,
+ * INTELLECTUAL PROPERTY INFRINGEMENT, OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE. See the GNU General Public License for more details.
+ *
+ * EXPORT LAWS: THIS LICENSE ADDS NO RESTRICTIONS TO THE EXPORT LAWS OF
+ * YOUR JURISDICTION. It is licensee's responsibility to comply with
+ * any export regulations applicable in licensee's jurisdiction. Under
+ * CURRENT (2001) U.S. export regulations this software
+ * is eligible for export from the U.S. and can be downloaded by or
+ * otherwise exported or reexported worldwide EXCEPT to U.S. embargoed
+ * destinations which include Cuba, Iraq, Libya, North Korea, Iran,
+ * Syria, Sudan, Afghanistan and any other country to which the U.S.
+ * has embargoed goods and services.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this file; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * END_NSC_LIC_GPL */
+
+#include "xf86.h"
+#include "xf86_OSproc.h"
+#include "xf86_ansic.h"
+#include "xf86Pci.h"
+#include "xf86PciInfo.h"
+#include "xaa.h"
+#include "xaalocal.h"
+#include "geode.h"
+#include "dgaproc.h"
+
+/* forward declarations */
+static Bool Geode_OpenFramebuffer(ScrnInfoPtr, char **, unsigned char **,
+ int *, int *, int *);
+static void Geode_CloseFramebuffer(ScrnInfoPtr pScrn);
+static Bool Geode_SetMode(ScrnInfoPtr, DGAModePtr);
+static int Geode_GetViewport(ScrnInfoPtr);
+static void Geode_SetViewport(ScrnInfoPtr, int, int, int);
+static void Geode_FillRect(ScrnInfoPtr, int, int, int, int, unsigned long);
+static void Geode_BlitRect(ScrnInfoPtr, int, int, int, int, int, int);
+
+extern void GeodeAdjustFrame(int, int, int, int);
+extern Bool GeodeSwitchMode(int, DisplayModePtr, int);
+extern void GeodeAccelSync(ScrnInfoPtr pScreenInfo);
+
+
+static DGAFunctionRec GeodeDGAFuncs = {
+ Geode_OpenFramebuffer,
+ Geode_CloseFramebuffer,
+ Geode_SetMode,
+ Geode_SetViewport,
+ Geode_GetViewport,
+ GeodeAccelSync,
+ Geode_FillRect,
+ Geode_BlitRect,
+ NULL
+};
+/*----------------------------------------------------------------------------
+ * GeodeDGAInit.
+ *
+ * Description :This function is used to intiallize the DGA modes and sets the
+ viewport based on the screen mode.
+ * Parameters.
+ * pScreeen :Pointer to screen info structure.
+ *
+ * Returns :TRUE on success and FALSE on failure.
+ *
+ * Comments :This function prepares the DGA mode settings for
+ * other func reference.
+ *
+*----------------------------------------------------------------------------
+*/
+Bool GeodeDGAInit(ScreenPtr pScreen)
+{
+ ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
+ GeodePtr pGeode = GEODEPTR(pScrn);
+ DGAModePtr modes = NULL, newmodes = NULL, currentMode;
+ DisplayModePtr pMode, firstMode;
+ int Bpp = pScrn->bitsPerPixel >> 3;
+ int num = 0;
+ Bool oneMore;
+ pMode = firstMode = pScrn->modes;
+ DEBUGMSG(0, (0, X_NONE, "GeodeDGAInit\n"));
+ while(pMode) {
+
+ /* redundant but it can be used in future:if(0).*/
+ if(0 ) { /*pScrn->displayWidth != pMode->HDisplay*/
+ /* memory is allocated for dga to
+ *setup the viewport and mode parameters
+ */
+ newmodes = xrealloc(modes, (num + 2) * sizeof(DGAModeRec));
+ oneMore = TRUE;
+ } else {
+ /* one record is allocated here */
+ newmodes = xrealloc(modes, (num + 1) * sizeof(DGAModeRec));
+ oneMore = FALSE;
+ }
+ if(!newmodes) {
+ xfree(modes);
+ return FALSE;
+ }
+ modes = newmodes;
+
+SECOND_PASS: /* DGA mode flgas and viewport parametrs are set here.*/
+
+ currentMode = modes + num;
+ num++;
+ currentMode->mode = pMode;
+ currentMode->flags = DGA_CONCURRENT_ACCESS | DGA_PIXMAP_AVAILABLE;
+ currentMode->flags |= DGA_FILL_RECT | DGA_BLIT_RECT;
+ if(pMode->Flags & V_DBLSCAN)
+ currentMode->flags |= DGA_DOUBLESCAN;
+ if(pMode->Flags & V_INTERLACE)
+ currentMode->flags |= DGA_INTERLACED;
+ currentMode->byteOrder = pScrn->imageByteOrder;
+ currentMode->depth = pScrn->depth;
+ currentMode->bitsPerPixel = pScrn->bitsPerPixel;
+ currentMode->red_mask = pScrn->mask.red;
+ currentMode->green_mask = pScrn->mask.green;
+ currentMode->blue_mask = pScrn->mask.blue;
+ currentMode->visualClass = (Bpp == 1) ? PseudoColor : TrueColor;
+ currentMode->viewportWidth = pMode->HDisplay;
+ currentMode->viewportHeight = pMode->VDisplay;
+ currentMode->xViewportStep = 1;
+ currentMode->yViewportStep = 1;
+ currentMode->viewportFlags = DGA_FLIP_RETRACE;
+ currentMode->offset = 0;
+ currentMode->address = pGeode->FBBase;
+ if(oneMore) { /* first one is narrow width */
+ currentMode->bytesPerScanline = ((pMode->HDisplay * Bpp) + 3) & ~3L;
+ currentMode->imageWidth = pMode->HDisplay;
+ currentMode->imageHeight = pMode->VDisplay;
+ currentMode->pixmapWidth = currentMode->imageWidth;
+ currentMode->pixmapHeight = currentMode->imageHeight;
+ currentMode->maxViewportX = currentMode->imageWidth -
+ currentMode->viewportWidth;
+ /* this might need to get clamped to some maximum */
+ currentMode->maxViewportY = currentMode->imageHeight -
+ currentMode->viewportHeight;
+ oneMore = FALSE;
+ goto SECOND_PASS;
+ } else {
+ currentMode->bytesPerScanline =
+ ((pScrn->displayWidth * Bpp) + 3) & ~3L;
+ currentMode->imageWidth = pScrn->displayWidth;
+ currentMode->imageHeight = pMode->VDisplay;
+ currentMode->pixmapWidth = currentMode->imageWidth;
+ currentMode->pixmapHeight = currentMode->imageHeight;
+ currentMode->maxViewportX = currentMode->imageWidth -
+ currentMode->viewportWidth;
+ /* this might need to get clamped to some maximum */
+ currentMode->maxViewportY = currentMode->imageHeight -
+ currentMode->viewportHeight;
+ }
+ pMode = pMode->next;
+ if(pMode == firstMode)
+ break;
+ }
+ pGeode->numDGAModes = num;
+ pGeode->DGAModes = modes;
+ return DGAInit(pScreen, &GeodeDGAFuncs, modes, num);
+}
+/*----------------------------------------------------------------------------
+ * Geode_SetMode.
+ *
+ * Description :This function is sets into the DGA mode.
+ *.
+ * Parameters.
+ * pScreeen :Pointer to screen info structure.
+ * pMode :Points to the DGAmode ptr data
+ * Returns :TRUE on success and FALSE on failure.
+ *
+ * Comments :none.
+ *
+ *
+*----------------------------------------------------------------------------
+*/
+static Bool Geode_SetMode(ScrnInfoPtr pScrn, DGAModePtr pMode)
+{
+ static int OldDisplayWidth[MAXSCREENS];
+ int index = pScrn->pScreen->myNum;
+ GeodePtr pGeode = GEODEPTR(pScrn);
+ DEBUGMSG(0, (0, X_NONE, "Geode_SetMode\n"));
+ if(!pMode) {
+ /* restore the original mode
+ * put the ScreenParameters back
+ */
+ pScrn->displayWidth = OldDisplayWidth[index];
+ GeodeSwitchMode(index, pScrn->currentMode, 0);
+ pGeode->DGAactive = FALSE;
+ } else {
+ if(!pGeode->DGAactive) { /* save the old parameters */
+ OldDisplayWidth[index] = pScrn->displayWidth;
+ pGeode->DGAactive = TRUE;
+ }
+ pScrn->displayWidth = pMode->bytesPerScanline /
+ (pMode->bitsPerPixel >> 3);
+ GeodeSwitchMode(index, pMode->mode, 0);
+ }
+ /* enable/disable cursor */
+ if(pGeode->HWCursor)
+ {
+#if defined(STB_X)
+ Gal_set_compression_state(((pGeode->DGAactive) ?
+ GAL_COMPRESSION_DISABLE : GAL_COMPRESSION_ENABLE));
+ Gal_set_cursor_enable(!pGeode->DGAactive);
+#else
+ gfx_set_cursor_enable(!pGeode->DGAactive);
+ gfx_set_compression_enable(!pGeode->DGAactive);
+#endif /* STB_X */
+ }
+
+ return TRUE;
+}
+
+/*----------------------------------------------------------------------------
+ * Geode_GetViewPort.
+ *
+ * Description :This function is Gets the viewport window memory.
+ *.
+ * Parameters.
+ * pScrn :Pointer to screen info structure.
+ *
+ * Returns :returns the viewport status.
+ *
+ * Comments :none.
+ *
+ *
+*----------------------------------------------------------------------------
+*/
+static int Geode_GetViewport(ScrnInfoPtr pScrn)
+{
+ GeodePtr pGeode = GEODEPTR(pScrn);
+ return pGeode->DGAViewportStatus;
+}
+
+/*----------------------------------------------------------------------------
+ * Geode_SetViewPort.
+ *
+ * Description :This function is Gets the viewport window memory.
+ *
+ * Parameters.
+ * pScrn :Pointer to screen info structure.
+ x :x-cordinate of viewport window
+ * y :y-codinate of the viewport window.
+ * flags :indicates the viewport to be flipped or not.
+ * Returns :returns the viewport status as zero.
+ *
+ * Comments :none.
+ *
+*----------------------------------------------------------------------------
+*/
+static void Geode_SetViewport(ScrnInfoPtr pScrn, int x, int y, int flags)
+{
+ GeodePtr pGeode = GEODEPTR(pScrn);
+ GeodeAdjustFrame(pScrn->pScreen->myNum, x, y, flags);
+ pGeode->DGAViewportStatus = 0; /*GeodeAdjustFrame loops until finished*/
+}
+
+/*----------------------------------------------------------------------------
+ * Geode_FillRect.
+ *
+ * Description :This function is Gets the viewport window memory.
+ *.
+ * Parameters.
+ * pScrn :Pointer to screen info structure.
+ * x :x-cordinate of viewport window
+ * y :y-codinate of the viewport window.
+ * w :width of the rectangle
+ * h :height of the rectangle.
+ * color :color to be filled in rectangle.
+ *
+ * Returns :returns the viewport status as zero.
+ *
+ * Comments :This function is implemented by solidfill routines..
+ *
+*----------------------------------------------------------------------------
+*/
+static void Geode_FillRect (ScrnInfoPtr pScrn, int x, int y,
+ int w, int h, unsigned long color)
+{
+ GeodePtr pGeode = GEODEPTR(pScrn);
+ if(pGeode->AccelInfoRec)
+ {
+ (*pGeode->AccelInfoRec->SetupForSolidFill)(pScrn, color, GXcopy, ~0);
+ (*pGeode->AccelInfoRec->SubsequentSolidFillRect)(pScrn, x, y, w, h);
+ SET_SYNC_FLAG(pGeode->AccelInfoRec);
+ }
+}
+
+/*----------------------------------------------------------------------------
+ * Geode_BlitRect.
+ *
+ * Description :This function implementing Blit and it moves a
+ * Rectangular block of data from one location to other
+ * Location.
+ *
+ * Parameters.
+ * pScrn :Pointer to screen info structure.
+ * srcx :x-cordinate of the src rectangle
+ * srcy :y-codinate of src rectangle.
+ * w :width of the rectangle
+ * h :height of the rectangle.
+ * dstx :x-cordinate of the dst rectangle.
+ * dsty :y -coordinates of the dst rectangle.
+ * Returns :none.
+ *
+ * Comments :none
+ *
+*----------------------------------------------------------------------------
+*/
+static void Geode_BlitRect(ScrnInfoPtr pScrn,
+ int srcx, int srcy, int w, int h, int dstx, int dsty)
+{
+ GeodePtr pGeode = GEODEPTR(pScrn);
+ if(pGeode->AccelInfoRec) {
+ int xdir = ((srcx < dstx) && (srcy == dsty)) ? -1 : 1;
+ int ydir = (srcy < dsty) ? -1 : 1;
+ (*pGeode->AccelInfoRec->SetupForScreenToScreenCopy)
+ (
+ pScrn, xdir, ydir, GXcopy, ~0, -1);
+ (*pGeode->AccelInfoRec->SubsequentScreenToScreenCopy)(
+ pScrn, srcx, srcy, dstx, dsty, w, h);
+ SET_SYNC_FLAG(pGeode->AccelInfoRec);
+ }
+}
+
+/*----------------------------------------------------------------------------
+ * Geode_OpenFramebuffer.
+ *
+ * Description :This function open the framebuffer driver for DGA.
+ *
+ * Parameters.
+ * pScrn :Pointer to screen info structure.
+ * srcx :x-cordinate of the src rectangle
+ * srcy :y-codinate of src rectangle.
+ * w :width of the rectangle
+ * h :height of the rectangle.
+ * dstx :x-cordinate of the dst rectangle.
+ * dsty :y -coordinates of the dst rectangle.
+ * Returns :none.
+ *
+ * Comments :none
+ *
+*----------------------------------------------------------------------------
+*/
+static Bool Geode_OpenFramebuffer(ScrnInfoPtr pScrn,
+ char **name, unsigned char **mem,
+ int *size, int *offset, int *flags)
+{
+ GeodePtr pGeode = GEODEPTR(pScrn);
+ *name = NULL; /* no special device */
+ *mem = (unsigned char*)pGeode->FBLinearAddr;
+ *size = pGeode->FBSize;
+ *offset = 0;
+ *flags = DGA_NEED_ROOT;
+ return TRUE;
+}
+
+static void Geode_CloseFramebuffer(ScrnInfoPtr pScrn)
+{
+}
+
+/* end of file */
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