diff -urN a/src/radeon_glamor.c b/src/radeon_glamor.c
--- a/src/radeon_glamor.c	2013-03-13 23:02:55.145637300 +0100
+++ b/src/radeon_glamor.c	2013-03-15 18:47:45.326019917 +0100
@@ -34,6 +34,7 @@
 
 #include "radeon.h"
 #include "radeon_bo_helper.h"
+#include "radeon_bo_gem.h"
 
 #if HAS_DEVPRIVATEKEYREC
 DevPrivateKeyRec glamor_pixmap_index;
@@ -164,8 +165,20 @@
 
 	if (!(usage & RADEON_CREATE_PIXMAP_DRI2)) {
 		pixmap = glamor_create_pixmap(screen, w, h, depth, usage);
-		if (pixmap)
-			return pixmap;
+		if (pixmap){
+		    if(usage & CREATE_PIXMAP_USAGE_SHARED) {
+			// alloc priv, else NULL in radeon_glamor_set_pixmap_backing
+			priv = calloc(1, sizeof(struct radeon_pixmap));
+			if(!priv) {
+			    glamor_destroy_pixmap(pixmap);
+			    pixmap = NULL;
+			}
+			else {
+			    radeon_set_pixmap_private(pixmap, priv);
+			    return pixmap;
+			}
+		    }
+		}
 	}
 
 	if (w > 32767 || h > 32767)
@@ -245,6 +258,80 @@
 	return TRUE;
 }
 
+#ifdef RADEON_PIXMAP_SHARING
+Bool radeon_glamor_share_pixmap_backing(PixmapPtr pixmap, ScreenPtr slave, void **fd_handle)
+{
+	struct radeon_pixmap *priv;
+	int ret;
+	int handle;
+	priv = radeon_get_pixmap_private(pixmap);
+	if(!priv)
+	    return FALSE;
+
+	ret = radeon_gem_prime_share_bo(priv->bo, &handle);
+	if(ret)
+	    return FALSE;
+
+	*fd_handle = (void*)(long)handle;
+	return TRUE;
+}
+
+Bool radeon_glamor_set_shared_pixmap_backing(PixmapPtr pixmap, void* fd_handle)
+{
+	ScrnInfoPtr scrn = xf86ScreenToScrn(pixmap->drawable.pScreen);
+	RADEONInfoPtr info = RADEONPTR(scrn);
+	struct radeon_bo *bo;
+	struct radeon_pixmap *priv;
+	struct radeon_surface surface;
+	int ihandle = (int)(long)fd_handle;
+	uint32_t size = pixmap->devKind * pixmap->drawable.height;
+
+	priv = radeon_get_pixmap_private(pixmap);
+	if(!priv)
+	    return FALSE;
+
+	bo = radeon_gem_bo_open_prime(info->bufmgr, ihandle, size);
+	if (!bo)
+	    return FALSE;
+
+	memset(&surface, 0, sizeof(struct radeon_surface));
+	
+	if (info->ChipFamily >= CHIP_FAMILY_R600 && info->surf_man) {
+
+	    surface.npix_x = pixmap->drawable.width;
+	    surface.npix_y = pixmap->drawable.height;
+	    surface.npix_z = 1;
+	    surface.blk_w = 1;
+	    surface.blk_h = 1;
+	    surface.blk_d = 1;
+	    surface.array_size = 1;
+	    surface.bpe = pixmap->drawable.bitsPerPixel / 8;
+	    surface.nsamples = 1;
+	    surface.flags |= RADEON_SURF_SET(RADEON_SURF_TYPE_2D, TYPE);
+	    surface.flags |= RADEON_SURF_SET(RADEON_SURF_MODE_LINEAR, MODE);
+	    if (radeon_surface_best(info->surf_man, &surface)) {
+		return FALSE;
+	    }
+	    if (radeon_surface_init(info->surf_man, &surface)) {
+		return FALSE;
+	    }
+	    /* we have to post hack the surface to reflect the actual size
+	       of the shared pixmap */
+	    surface.level[0].pitch_bytes = pixmap->devKind;
+	    surface.level[0].nblk_x = pixmap->devKind / surface.bpe;
+	}
+	priv->surface = surface;
+	priv->tiling_flags = 0;
+	radeon_set_pixmap_bo(pixmap, bo);
+
+	close(ihandle);
+	/* we have a reference from the alloc and one from set pixmap bo,
+	   drop one */
+	radeon_bo_unref(bo);
+	return TRUE;
+}
+
+#endif
 Bool
 radeon_glamor_init(ScreenPtr screen)
 {
@@ -272,6 +359,8 @@
 
 	screen->CreatePixmap = radeon_glamor_create_pixmap;
 	screen->DestroyPixmap = radeon_glamor_destroy_pixmap;
+	screen->SharePixmapBacking = radeon_glamor_share_pixmap_backing;
+	screen->SetSharedPixmapBacking = radeon_glamor_set_shared_pixmap_backing;
 
 	xf86DrvMsg(scrn->scrnIndex, X_INFO,
 		   "Use GLAMOR acceleration.\n");
diff -urN a/src/radeon_glamor.h b/src/radeon_glamor.h
--- a/src/radeon_glamor.h	2013-03-13 23:02:55.141637299 +0100
+++ b/src/radeon_glamor.h	2013-03-15 20:17:58.299542636 +0100
@@ -41,6 +41,9 @@
 Bool radeon_glamor_create_textured_pixmap(PixmapPtr pixmap);
 void radeon_glamor_exchange_buffers(PixmapPtr src, PixmapPtr dst);
 
+Bool radeon_glamor_share_pixmap_backing(PixmapPtr pixmap, ScreenPtr slave, void **fd_handle);
+Bool radeon_glamor_set_shared_pixmap_backing(PixmapPtr pixmap, void* fd_handle);
+
 Bool radeon_glamor_pixmap_is_offscreen(PixmapPtr pixmap);
 
 struct radeon_pixmap {
@@ -84,6 +87,9 @@
 
 static inline void radeon_glamor_exchange_buffers(PixmapPtr src, PixmapPtr dst) {}
 
+static inline Bool radeon_glamor_share_pixmap_backing(PixmapPtr pixmap, ScreenPtr slave, void **fd_handle) {return FALSE; }
+static inline Bool radeon_glamor_set_shared_pixmap_backing(PixmapPtr pixmap, void* fd_handle) { return FALSE; }
+
 static inline Bool radeon_glamor_pixmap_is_offscreen(PixmapPtr pixmap) { return FALSE; }
 
 static inline struct radeon_pixmap *radeon_get_pixmap_private(PixmapPtr pixmap) { return NULL; }