Add support for the new DRM memory manager.

Some code are duplicated with the new libdrm.
Once this code has been released with xserver,
it can be removed.

See the man page for new options and backwards
3D driver compatibility.

1 files changed, 38 insertions, 14 deletions

diff --git a/src/i830_dri.c b/src/i830_dri.c
index 21af6518..524c4de7 100644
--- a/src/i830_dri.c
+++ b/src/i830_dri.c
@@ -1,4 +1,4 @@
-/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/i810/i830_dri.c,v 1.15 2003/06/18 13:14:17 dawes Exp $ */
+/* $xfree86: xc/programs/Xserver/hw/xfree86/drivers/i810/i830_dri.c,v 1.15 2003/06/18 13:14:17 dawes Exp $ */
 /**************************************************************************
 
 Copyright 2001 VA Linux Systems Inc., Fremont, California.
@@ -84,8 +84,9 @@ USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include "dristruct.h"
 
 static char I830KernelDriverName[] = "i915";
-static char I830ClientDriverName[] = "i915";
+static char I830ClientDriverName[] = "i915tex";
 static char I965ClientDriverName[] = "i965";
+static char I830LegacyClientDriverName[] = "i915";
 
 static Bool I830InitVisualConfigs(ScreenPtr pScreen);
 static Bool I830CreateContext(ScreenPtr pScreen, VisualPtr visual,
@@ -644,10 +645,31 @@ I830DRIScreenInit(ScreenPtr pScreen)
 	    return FALSE;
 	 }
 	 pI830->drmMinor = version->version_minor;
+	 if (!(pI830->mmModeFlags & I830_KERNEL_TEX)) {
+	    if ((version->version_major > 1) ||
+		((version->version_minor >= 7) && 
+		 (version->version_major == 1))) {
+	       pI830->mmModeFlags |= I830_KERNEL_MM;
+	    } else {
+	       pI830->mmModeFlags |= I830_KERNEL_TEX;
+	    }		
+	 } else {
+	    xf86DrvMsg(pScreen->myNum, X_INFO, 
+		       "Not enabling the DRM memory manager.\n");
+	 } 
 	 drmFreeVersion(version);
       }
    }
 
+   /*
+    * Backwards compatibility
+    */
+
+   if ((pDRIInfo->clientDriverName == I830ClientDriverName) && 
+       (pI830->mmModeFlags & I830_KERNEL_TEX)) {
+      pDRIInfo->clientDriverName = I830LegacyClientDriverName;
+   }
+
    return TRUE;
 }
 
@@ -707,18 +729,20 @@ I830DRIMapScreenRegions(ScrnInfoPtr pScrn, drmI830Sarea *sarea)
    xf86DrvMsg(pScrn->scrnIndex, X_INFO, "[drm] Depth Buffer = 0x%08x\n",
               (int)sarea->depth_handle);
 
-   if (drmAddMap(pI830->drmSubFD,
-		 (drm_handle_t)sarea->tex_offset + pI830->LinearAddr,
-		 sarea->tex_size, DRM_AGP, 0,
-		 (drmAddress) &sarea->tex_handle) < 0) {
-      xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
-		 "[drm] drmAddMap(tex_handle) failed. Disabling DRI\n");
-      DRICloseScreen(pScreen);
-      return FALSE;
-   }
-   xf86DrvMsg(pScrn->scrnIndex, X_INFO, "[drm] textures = 0x%08x\n",
-	      (int)sarea->tex_handle);
+   if (pI830->mmModeFlags & I830_KERNEL_TEX) {
+      if (drmAddMap(pI830->drmSubFD,
+		    (drm_handle_t)sarea->tex_offset + pI830->LinearAddr,
+		    sarea->tex_size, DRM_AGP, 0,
+		    (drmAddress) &sarea->tex_handle) < 0) {
+	 xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
+		    "[drm] drmAddMap(tex_handle) failed. Disabling DRI\n");
+	 DRICloseScreen(pScreen);
+	 return FALSE;
+      }
 
+      xf86DrvMsg(pScrn->scrnIndex, X_INFO, "[drm] textures = 0x%08x\n",
+		 (int)sarea->tex_handle);
+   }
    return TRUE;
 }
 
@@ -1475,7 +1499,7 @@ I830UpdateDRIBuffers(ScrnInfoPtr pScrn, drmI830Sarea *sarea)
 
    success = I830DRIMapScreenRegions(pScrn, sarea);
 
-   if (success)
+   if (success && (pI830->mmModeFlags & I830_KERNEL_TEX))
       I830InitTextureHeap(pScrn, sarea);
 
    return success;