Merge remote-tracking branch 'origin/released'

* origin/released:
  libxtrans fontconfig mesa xserver pixman xkbcomp git update 4 nov 2013

Conflicts:
	xorg-server/Xext/shm.c
	xorg-server/os/xstrans.c

126 files changed, 5282 insertions, 375 deletions

diff --git a/X11/xtrans/Xtrans.c b/X11/xtrans/Xtrans.c
index 57a001a61..d14136b70 100644
--- a/X11/xtrans/Xtrans.c
+++ b/X11/xtrans/Xtrans.c
@@ -871,17 +871,22 @@ TRANS(Write) (XtransConnInfo ciptr, char *buf, int size)
 }
 
 int
-TRANS(Readv) (XtransConnInfo ciptr, struct iovec *buf, int size)
+TRANS(Writev) (XtransConnInfo ciptr, struct iovec *buf, int size)
 
 {
-    return ciptr->transptr->Readv (ciptr, buf, size);
+    return ciptr->transptr->Writev (ciptr, buf, size);
 }
 
 int
-TRANS(Writev) (XtransConnInfo ciptr, struct iovec *buf, int size)
+TRANS(SendFd) (XtransConnInfo ciptr, int fd, int do_close)
+{
+    return ciptr->transptr->SendFd(ciptr, fd, do_close);
+}
 
+int
+TRANS(RecvFd) (XtransConnInfo ciptr)
 {
-    return ciptr->transptr->Writev (ciptr, buf, size);
+    return ciptr->transptr->RecvFd(ciptr);
 }
 
 int
diff --git a/X11/xtrans/Xtrans.h b/X11/xtrans/Xtrans.h
index 2945b2aba..53b8b627d 100644
--- a/X11/xtrans/Xtrans.h
+++ b/X11/xtrans/Xtrans.h
@@ -344,18 +344,16 @@ int TRANS(Write)(
     int			/* size */
 );
 
-int TRANS(Readv)(
-    XtransConnInfo,	/* ciptr */
-    struct iovec *,	/* buf */
-    int			/* size */
-);
-
 int TRANS(Writev)(
     XtransConnInfo,	/* ciptr */
     struct iovec *,	/* buf */
     int			/* size */
 );
 
+int TRANS(SendFd) (XtransConnInfo ciptr, int fd, int do_close);
+
+int TRANS(RecvFd) (XtransConnInfo ciptr);
+
 int TRANS(Disconnect)(
     XtransConnInfo	/* ciptr */
 );
diff --git a/X11/xtrans/Xtransint.h b/X11/xtrans/Xtransint.h
index 9954dfe06..fcfb3b299 100644
--- a/X11/xtrans/Xtransint.h
+++ b/X11/xtrans/Xtransint.h
@@ -72,6 +72,8 @@ from The Open Group.
 #  define XTRANSDEBUG 1
 #endif
 
+#define XTRANS_SEND_FDS       1
+
 #ifdef WIN32
 # define _WILLWINSOCK_
 #endif
@@ -123,6 +125,16 @@ from The Open Group.
 #define X_TCP_PORT	6000
 #endif
 
+#if XTRANS_SEND_FDS
+
+struct _XtransConnFd {
+    struct _XtransConnFd   *next;
+    int                    fd;
+    int                    do_close;
+};
+
+#endif
+
 struct _XtransConnInfo {
     struct _Xtransport     *transptr;
     int		index;
@@ -135,6 +147,8 @@ struct _XtransConnInfo {
     int		addrlen;
     char	*peeraddr;
     int		peeraddrlen;
+    struct _XtransConnFd        *recv_fds;
+    struct _XtransConnFd        *send_fds;
 };
 
 #define XTRANS_OPEN_COTS_CLIENT       1
@@ -275,6 +289,16 @@ typedef struct _Xtransport {
 	int			/* size */
     );
 
+    int (*SendFd)(
+	XtransConnInfo,		/* connection */
+        int,                    /* fd */
+        int                     /* do_close */
+    );
+
+    int (*RecvFd)(
+	XtransConnInfo		/* connection */
+    );
+
     int	(*Disconnect)(
 	XtransConnInfo		/* connection */
     );
diff --git a/X11/xtrans/Xtranssock.c b/X11/xtrans/Xtranssock.c
index bf21d8836..b3a2843e4 100644
--- a/X11/xtrans/Xtranssock.c
+++ b/X11/xtrans/Xtranssock.c
@@ -2113,47 +2113,176 @@ TRANS(SocketBytesReadable) (XtransConnInfo ciptr, BytesReadable_t *pend)
 #endif /* WIN32 */
 }
 
+#if XTRANS_SEND_FDS
+
+static void
+appendFd(struct _XtransConnFd **prev, int fd, int do_close)
+{
+    struct _XtransConnFd *cf, *new;
+
+    new = malloc (sizeof (struct _XtransConnFd));
+    if (!new) {
+        /* XXX mark connection as broken */
+        close(fd);
+        return;
+    }
+    new->next = 0;
+    new->fd = fd;
+    new->do_close = do_close;
+    /* search to end of list */
+    for (; (cf = *prev); prev = &(cf->next));
+    *prev = new;
+}
 
 static int
-TRANS(SocketRead) (XtransConnInfo ciptr, char *buf, int size)
+removeFd(struct _XtransConnFd **prev)
+{
+    struct _XtransConnFd *cf;
+    int fd;
+
+    if ((cf = *prev)) {
+        *prev = cf->next;
+        fd = cf->fd;
+        free(cf);
+    } else
+        fd = -1;
+    return fd;
+}
 
+static void
+discardFd(struct _XtransConnFd **prev, struct _XtransConnFd *upto, int do_close)
 {
-    prmsg (2,"SocketRead(%d,%p,%d)\n", ciptr->fd, buf, size);
+    struct _XtransConnFd *cf, *next;
 
-#if defined(WIN32)
-    {
-	int ret = recv ((SOCKET)ciptr->fd, buf, size, 0);
-#ifdef WIN32
-	if (ret == SOCKET_ERROR) errno = WSAGetLastError();
-#endif
-	return ret;
+    for (cf = *prev; cf != upto; cf = next) {
+        next = cf->next;
+        if (do_close || cf->do_close)
+            close(cf->fd);
+        free(cf);
     }
-#else
-    return read (ciptr->fd, buf, size);
-#endif /* WIN32 */
+    *prev = upto;
 }
 
+static void
+cleanupFds(XtransConnInfo ciptr)
+{
+    /* Clean up the send list but don't close the fds */
+    discardFd(&ciptr->send_fds, NULL, 0);
+    /* Clean up the recv list and *do* close the fds */
+    discardFd(&ciptr->recv_fds, NULL, 1);
+}
 
 static int
-TRANS(SocketWrite) (XtransConnInfo ciptr, char *buf, int size)
+nFd(struct _XtransConnFd **prev)
+{
+    struct _XtransConnFd *cf;
+    int n = 0;
+
+    for (cf = *prev; cf; cf = cf->next)
+        n++;
+    return n;
+}
+
+static int
+TRANS(SocketRecvFd) (XtransConnInfo ciptr)
+{
+    prmsg (2, "SocketRecvFd(%d)\n", ciptr->fd);
+    return removeFd(&ciptr->recv_fds);
+}
 
+static int
+TRANS(SocketSendFd) (XtransConnInfo ciptr, int fd, int do_close)
 {
-    prmsg (2,"SocketWrite(%d,%p,%d)\n", ciptr->fd, buf, size);
+    appendFd(&ciptr->send_fds, fd, do_close);
+    return 0;
+}
+
+static int
+TRANS(SocketRecvFdInvalid)(XtransConnInfo ciptr)
+{
+    errno = EINVAL;
+    return -1;
+}
+
+static int
+TRANS(SocketSendFdInvalid)(XtransConnInfo ciptr, int fd, int do_close)
+{
+    errno = EINVAL;
+    return -1;
+}
+
+#define MAX_FDS		128
+
+struct fd_pass {
+	struct cmsghdr	cmsghdr;
+	int		fd[MAX_FDS];
+};
+
+static inline void init_msg_recv(struct msghdr *msg, struct iovec *iov, int niov, struct fd_pass *pass, int nfd) {
+    msg->msg_name = NULL;
+    msg->msg_namelen = 0;
+    msg->msg_iov = iov;
+    msg->msg_iovlen = niov;
+    msg->msg_control = pass;
+    msg->msg_controllen = sizeof (struct cmsghdr) + nfd * sizeof (int);
+}
+
+static inline void init_msg_send(struct msghdr *msg, struct iovec *iov, int niov, struct fd_pass *pass, int nfd) {
+    init_msg_recv(msg, iov, niov, pass, nfd);
+    pass->cmsghdr.cmsg_len = msg->msg_controllen;
+    pass->cmsghdr.cmsg_level = SOL_SOCKET;
+    pass->cmsghdr.cmsg_type = SCM_RIGHTS;
+}
+
+#endif /* XTRANS_SEND_FDS */
+
+static int
+TRANS(SocketRead) (XtransConnInfo ciptr, char *buf, int size)
+
+{
+    prmsg (2,"SocketRead(%d,%p,%d)\n", ciptr->fd, buf, size);
 
 #if defined(WIN32)
     {
-	int ret = send ((SOCKET)ciptr->fd, buf, size, 0);
+	int ret = recv ((SOCKET)ciptr->fd, buf, size, 0);
 #ifdef WIN32
 	if (ret == SOCKET_ERROR) errno = WSAGetLastError();
 #endif
 	return ret;
     }
 #else
-    return write (ciptr->fd, buf, size);
+#if XTRANS_SEND_FDS
+    {
+        struct msghdr   msg;
+        struct iovec    iov;
+        struct fd_pass  pass;
+
+        iov.iov_base = buf;
+        iov.iov_len = size;
+
+        init_msg_recv(&msg, &iov, 1, &pass, MAX_FDS);
+        size = recvmsg(ciptr->fd, &msg, 0);
+        if (size >= 0 && msg.msg_controllen > sizeof (struct cmsghdr)) {
+            if (pass.cmsghdr.cmsg_level == SOL_SOCKET &&
+                pass.cmsghdr.cmsg_type == SCM_RIGHTS &&
+                !((msg.msg_flags & MSG_TRUNC) ||
+                  (msg.msg_flags & MSG_CTRUNC)))
+            {
+                int nfd = (msg.msg_controllen - sizeof (struct cmsghdr)) / sizeof (int);
+                int *fd = (int *) CMSG_DATA(&pass.cmsghdr);
+                int i;
+                for (i = 0; i < nfd; i++)
+                    appendFd(&ciptr->recv_fds, fd[i], 0);
+            }
+        }
+        return size;
+    }
+#else
+    return read(ciptr->fd, buf, size);
+#endif /* XTRANS_SEND_FDS */
 #endif /* WIN32 */
 }
 
-
 static int
 TRANS(SocketReadv) (XtransConnInfo ciptr, struct iovec *buf, int size)
 
@@ -2170,11 +2299,65 @@ TRANS(SocketWritev) (XtransConnInfo ciptr, struct iovec *buf, int size)
 {
     prmsg (2,"SocketWritev(%d,%p,%d)\n", ciptr->fd, buf, size);
 
+#if XTRANS_SEND_FDS
+    if (ciptr->send_fds)
+    {
+        struct msghdr           msg;
+        struct fd_pass          pass;
+        int                     nfd;
+        struct _XtransConnFd    *cf;
+        int                     i;
+
+        nfd = nFd(&ciptr->send_fds);
+        cf = ciptr->send_fds;
+
+        /* Set up fds */
+        for (i = 0; i < nfd; i++) {
+            pass.fd[i] = cf->fd;
+            cf = cf->next;
+        }
+
+        init_msg_send(&msg, buf, size, &pass, nfd);
+        i = sendmsg(ciptr->fd, &msg, 0);
+        if (i > 0)
+            discardFd(&ciptr->send_fds, cf, 0);
+        return i;
+    }
+#endif
     return WRITEV (ciptr, buf, size);
 }
 
 
 static int
+TRANS(SocketWrite) (XtransConnInfo ciptr, char *buf, int size)
+
+{
+    prmsg (2,"SocketWrite(%d,%p,%d)\n", ciptr->fd, buf, size);
+
+#if defined(WIN32)
+    {
+	int ret = send ((SOCKET)ciptr->fd, buf, size, 0);
+#ifdef WIN32
+	if (ret == SOCKET_ERROR) errno = WSAGetLastError();
+#endif
+	return ret;
+    }
+#else
+#if XTRANS_SEND_FDS
+    if (ciptr->send_fds)
+    {
+        struct iovec            iov;
+
+        iov.iov_base = buf;
+        iov.iov_len = size;
+        return TRANS(SocketWritev)(ciptr, &iov, 1);
+    }
+#endif /* XTRANS_SEND_FDS */
+    return write (ciptr->fd, buf, size);
+#endif /* WIN32 */
+}
+
+static int
 TRANS(SocketDisconnect) (XtransConnInfo ciptr)
 
 {
@@ -2227,6 +2410,9 @@ TRANS(SocketUNIXClose) (XtransConnInfo ciptr)
 
     prmsg (2,"SocketUNIXClose(%p,%d)\n", ciptr, ciptr->fd);
 
+#if XTRANS_SEND_FDS
+    cleanupFds(ciptr);
+#endif
     ret = close(ciptr->fd);
 
     if (ciptr->flags
@@ -2255,6 +2441,9 @@ TRANS(SocketUNIXCloseForCloning) (XtransConnInfo ciptr)
     prmsg (2,"SocketUNIXCloseForCloning(%p,%d)\n",
 	ciptr, ciptr->fd);
 
+#if XTRANS_SEND_FDS
+    cleanupFds(ciptr);
+#endif
     ret = close(ciptr->fd);
 
     return ret;
@@ -2309,6 +2498,8 @@ Xtransport	TRANS(SocketTCPFuncs) = {
 	TRANS(SocketWrite),
 	TRANS(SocketReadv),
 	TRANS(SocketWritev),
+        TRANS(SocketSendFdInvalid),
+        TRANS(SocketRecvFdInvalid),
 	TRANS(SocketDisconnect),
 	TRANS(SocketINETClose),
 	TRANS(SocketINETClose),
@@ -2349,6 +2540,8 @@ Xtransport	TRANS(SocketINETFuncs) = {
 	TRANS(SocketWrite),
 	TRANS(SocketReadv),
 	TRANS(SocketWritev),
+        TRANS(SocketSendFdInvalid),
+        TRANS(SocketRecvFdInvalid),
 	TRANS(SocketDisconnect),
 	TRANS(SocketINETClose),
 	TRANS(SocketINETClose),
@@ -2390,6 +2583,8 @@ Xtransport     TRANS(SocketINET6Funcs) = {
 	TRANS(SocketWrite),
 	TRANS(SocketReadv),
 	TRANS(SocketWritev),
+        TRANS(SocketSendFdInvalid),
+        TRANS(SocketRecvFdInvalid),
 	TRANS(SocketDisconnect),
 	TRANS(SocketINETClose),
 	TRANS(SocketINETClose),
@@ -2438,6 +2633,8 @@ Xtransport	TRANS(SocketLocalFuncs) = {
 	TRANS(SocketWrite),
 	TRANS(SocketReadv),
 	TRANS(SocketWritev),
+        TRANS(SocketSendFd),
+        TRANS(SocketRecvFd),
 	TRANS(SocketDisconnect),
 	TRANS(SocketUNIXClose),
 	TRANS(SocketUNIXCloseForCloning),
@@ -2492,6 +2689,8 @@ Xtransport	TRANS(SocketUNIXFuncs) = {
 	TRANS(SocketWrite),
 	TRANS(SocketReadv),
 	TRANS(SocketWritev),
+        TRANS(SocketSendFd),
+        TRANS(SocketRecvFd),
 	TRANS(SocketDisconnect),
 	TRANS(SocketUNIXClose),
 	TRANS(SocketUNIXCloseForCloning),
diff --git a/X11/xtrans/configure.ac b/X11/xtrans/configure.ac
index cc3c006ae..8c3aa3ded 100644
--- a/X11/xtrans/configure.ac
+++ b/X11/xtrans/configure.ac
@@ -21,7 +21,7 @@
 
 # Initialize Autoconf
 AC_PREREQ([2.60])
-AC_INIT([xtrans], [1.2.7],
+AC_INIT([xtrans], [1.3.0],
         [https://bugs.freedesktop.org/enter_bug.cgi?product=xorg], [xtrans])
 AC_CONFIG_SRCDIR([Makefile.am])
 
diff --git a/fontconfig/fonts.dtd b/fontconfig/fonts.dtd
index 4c38e77f0..479f2c0fb 100644
--- a/fontconfig/fonts.dtd
+++ b/fontconfig/fonts.dtd
@@ -140,7 +140,7 @@
     if 'target' is 'font', execute the match on the result of a font
     selection.
 -->
-<!ELEMENT match (test*, edit*)+>
+<!ELEMENT match (test|edit)+>
 <!ATTLIST match
 	  target (pattern|font|scan) "pattern">
 
diff --git a/fontconfig/src/fcxml.c b/fontconfig/src/fcxml.c
index 1a3cef460..da9cb5ddc 100644
--- a/fontconfig/src/fcxml.c
+++ b/fontconfig/src/fcxml.c
@@ -2567,6 +2567,11 @@ FcParseMatch (FcConfigParse *parse)
 	}
 	FcVStackPopAndDestroy (parse);
     }
+    if (!rule)
+    {
+	FcConfigMessage (parse, FcSevereWarning, "No <test> nor <edit> elements in <match>");
+	return;
+    }
     if (!FcConfigAddRule (parse->config, rule, kind))
 	FcConfigMessage (parse, FcSevereError, "out of memory");
 }
diff --git a/mesalib/configure.ac b/mesalib/configure.ac
index f94c9b979..0a250471e 100644
--- a/mesalib/configure.ac
+++ b/mesalib/configure.ac
@@ -1771,7 +1771,7 @@ if test "x$with_gallium_drivers" != x; then
             PKG_CHECK_MODULES([RADEON], [libdrm_radeon >= $LIBDRM_RADEON_REQUIRED])
             gallium_require_llvm "Gallium R300"
             GALLIUM_DRIVERS_DIRS="$GALLIUM_DRIVERS_DIRS r300"
-            gallium_check_st "radeon/drm" "r300/dri" "" "" "r300/xvmc" "r300/vdpau"
+            gallium_check_st "radeon/drm" "r300/dri" "" "" "" ""
             DRICOMMON_NEED_LIBDRM=yes
             ;;
         xr600)
@@ -1789,7 +1789,7 @@ if test "x$with_gallium_drivers" != x; then
             if test "x$enable_opencl" = xyes; then
                 LLVM_COMPONENTS="${LLVM_COMPONENTS} bitreader asmparser"
             fi
-            gallium_check_st "radeon/drm" "r600/dri" "r600/xorg" "" "r600/xvmc" "r600/vdpau"
+            gallium_check_st "radeon/drm" "r600/dri" "" "" "r600/xvmc" "r600/vdpau"
             DRICOMMON_NEED_LIBDRM=yes
             ;;
         xradeonsi)
@@ -1798,7 +1798,7 @@ if test "x$with_gallium_drivers" != x; then
             gallium_require_drm_loader
             GALLIUM_DRIVERS_DIRS="$GALLIUM_DRIVERS_DIRS radeonsi"
             radeon_llvm_check
-            gallium_check_st "radeon/drm" "radeonsi/dri" "radeonsi/xorg" "" "" "radeonsi/vdpau" ""
+            gallium_check_st "radeon/drm" "radeonsi/dri" "" "" "" "radeonsi/vdpau" ""
             DRICOMMON_NEED_LIBDRM=yes
             ;;
         xnouveau)
@@ -1828,16 +1828,6 @@ if test "x$with_gallium_drivers" != x; then
             if test "x$enable_dri" = xyes; then
                 GALLIUM_TARGET_DIRS="$GALLIUM_TARGET_DIRS dri-swrast"
             fi
-            if test "x$enable_vdpau" = xyes; then
-                GALLIUM_TARGET_DIRS="$GALLIUM_TARGET_DIRS vdpau-softpipe"
-            fi
-            if test "x$enable_xvmc" = xyes; then
-                GALLIUM_TARGET_DIRS="$GALLIUM_TARGET_DIRS xvmc-softpipe"
-            fi
-            if test "x$enable_vdpau" = xyes -o "x$enable_xvmc" = xyes; then
-                NEED_WINSYS_XLIB=yes
-                GALLIUM_WINSYS_DIRS="$GALLIUM_WINSYS_DIRS sw/xlib"
-            fi
             ;;
         *)
             AC_MSG_ERROR([Unknown Gallium driver: $driver])
@@ -2044,23 +2034,17 @@ AC_CONFIG_FILES([Makefile
 		src/gallium/targets/pipe-loader/Makefile
 		src/gallium/targets/radeonsi/dri/Makefile
 		src/gallium/targets/radeonsi/vdpau/Makefile
-		src/gallium/targets/radeonsi/xorg/Makefile
 		src/gallium/targets/r300/dri/Makefile
-		src/gallium/targets/r300/vdpau/Makefile
-		src/gallium/targets/r300/xvmc/Makefile
 		src/gallium/targets/r600/dri/Makefile
 		src/gallium/targets/r600/vdpau/Makefile
-		src/gallium/targets/r600/xorg/Makefile
 		src/gallium/targets/r600/xvmc/Makefile
 		src/gallium/targets/libgl-xlib/Makefile
 		src/gallium/targets/vdpau-nouveau/Makefile
-		src/gallium/targets/vdpau-softpipe/Makefile
 		src/gallium/targets/xa-vmwgfx/Makefile
 		src/gallium/targets/xa-vmwgfx/xatracker.pc
 		src/gallium/targets/xorg-i915/Makefile
 		src/gallium/targets/xorg-nouveau/Makefile
 		src/gallium/targets/xvmc-nouveau/Makefile
-		src/gallium/targets/xvmc-softpipe/Makefile
 		src/gallium/tests/trivial/Makefile
 		src/gallium/tests/unit/Makefile
 		src/gallium/winsys/Makefile
diff --git a/mesalib/docs/relnotes/10.0.html b/mesalib/docs/relnotes/10.0.html
index ef550d154..5ff53398e 100644
--- a/mesalib/docs/relnotes/10.0.html
+++ b/mesalib/docs/relnotes/10.0.html
@@ -49,6 +49,7 @@ Note: some of the new features are only available with certain drivers.
 <li>GL_ARB_texture_gather on i965.</li>
 <li>GL_ARB_texture_query_levels on i965.</li>
 <li>GL_ARB_texture_mirror_clamp_to_edge.</li>
+<li>GL_ARB_transform_feedback2, GL_ARB_transform_feedback3, and GL_ARB_transform_feedback_instanced on i965/Gen7 (with appropriate kernel support).</li>
 <li>GL_KHR_debug</li>
 </ul>
 
diff --git a/mesalib/src/glsl/Makefile.sources b/mesalib/src/glsl/Makefile.sources
index 2f7bfa163..2aabc0585 100644
--- a/mesalib/src/glsl/Makefile.sources
+++ b/mesalib/src/glsl/Makefile.sources
@@ -83,6 +83,7 @@ LIBGLSL_FILES = \
 	$(GLSL_SRCDIR)/opt_constant_variable.cpp \
 	$(GLSL_SRCDIR)/opt_copy_propagation.cpp \
 	$(GLSL_SRCDIR)/opt_copy_propagation_elements.cpp \
+	$(GLSL_SRCDIR)/opt_cse.cpp \
 	$(GLSL_SRCDIR)/opt_dead_builtin_varyings.cpp \
 	$(GLSL_SRCDIR)/opt_dead_code.cpp \
 	$(GLSL_SRCDIR)/opt_dead_code_local.cpp \
diff --git a/mesalib/src/glsl/builtin_variables.cpp b/mesalib/src/glsl/builtin_variables.cpp
index 7a3505ace..4d441045a 100644
--- a/mesalib/src/glsl/builtin_variables.cpp
+++ b/mesalib/src/glsl/builtin_variables.cpp
@@ -30,6 +30,9 @@
 #include "program/prog_statevars.h"
 #include "program/prog_instruction.h"
 
+static struct gl_builtin_uniform_element gl_NumSamples_elements[] = {
+   {NULL, {STATE_NUM_SAMPLES, 0, 0}, SWIZZLE_XXXX}
+};
 
 static struct gl_builtin_uniform_element gl_DepthRange_elements[] = {
    {"near", {STATE_DEPTH_RANGE, 0, 0}, SWIZZLE_XXXX},
@@ -236,6 +239,7 @@ static struct gl_builtin_uniform_element gl_NormalMatrix_elements[] = {
 #define STATEVAR(name) {#name, name ## _elements, Elements(name ## _elements)}
 
 static const struct gl_builtin_uniform_desc _mesa_builtin_uniform_desc[] = {
+   STATEVAR(gl_NumSamples),
    STATEVAR(gl_DepthRange),
    STATEVAR(gl_ClipPlane),
    STATEVAR(gl_Point),
@@ -662,6 +666,7 @@ builtin_variable_generator::generate_constants()
 void
 builtin_variable_generator::generate_uniforms()
 {
+   add_uniform(int_t, "gl_NumSamples");
    add_uniform(type("gl_DepthRangeParameters"), "gl_DepthRange");
    add_uniform(array(vec4_t, VERT_ATTRIB_MAX), "gl_CurrentAttribVertMESA");
    add_uniform(array(vec4_t, VARYING_SLOT_MAX), "gl_CurrentAttribFragMESA");
@@ -838,6 +843,19 @@ builtin_variable_generator::generate_fs_special_vars()
       if (state->AMD_shader_stencil_export_warn)
          var->warn_extension = "GL_AMD_shader_stencil_export";
    }
+
+   if (state->ARB_sample_shading_enable) {
+      add_system_value(SYSTEM_VALUE_SAMPLE_ID, int_t, "gl_SampleID");
+      add_system_value(SYSTEM_VALUE_SAMPLE_POS, vec2_t, "gl_SamplePosition");
+      /* From the ARB_sample_shading specification:
+       *    "The number of elements in the array is ceil(<s>/32), where
+       *    <s> is the maximum number of color samples supported by the
+       *    implementation."
+       * Since no drivers expose more than 32x MSAA, we can simply set
+       * the array size to 1 rather than computing it.
+       */
+      add_output(FRAG_RESULT_SAMPLE_MASK, array(int_t, 1), "gl_SampleMask");
+   }
 }
 
 
diff --git a/mesalib/src/glsl/glcpp/glcpp-parse.y b/mesalib/src/glsl/glcpp/glcpp-parse.y
index 86f3cd5aa..7edc27488 100644
--- a/mesalib/src/glsl/glcpp/glcpp-parse.y
+++ b/mesalib/src/glsl/glcpp/glcpp-parse.y
@@ -1249,6 +1249,9 @@ glcpp_parser_create (const struct gl_extensions *extensions, int api)
 	      if (extensions->ARB_shading_language_420pack)
 	         add_builtin_define(parser, "GL_ARB_shading_language_420pack", 1);
 
+	      if (extensions->ARB_sample_shading)
+	         add_builtin_define(parser, "GL_ARB_sample_shading", 1);
+
 	      if (extensions->EXT_shader_integer_mix)
 	         add_builtin_define(parser, "GL_EXT_shader_integer_mix", 1);
 
diff --git a/mesalib/src/glsl/glsl_parser_extras.cpp b/mesalib/src/glsl/glsl_parser_extras.cpp
index 77e8816c4..d922db9db 100644
--- a/mesalib/src/glsl/glsl_parser_extras.cpp
+++ b/mesalib/src/glsl/glsl_parser_extras.cpp
@@ -540,6 +540,7 @@ static const _mesa_glsl_extension _mesa_glsl_supported_extensions[] = {
    EXT(EXT_shader_integer_mix,         true,  true,      EXT_shader_integer_mix),
    EXT(ARB_texture_gather,             true,  false,     ARB_texture_gather),
    EXT(ARB_shader_atomic_counters,     true,  false,     ARB_shader_atomic_counters),
+   EXT(ARB_sample_shading,             true,  false,     ARB_sample_shading),
 };
 
 #undef EXT
@@ -1604,6 +1605,7 @@ do_common_optimization(exec_list *ir, bool linked,
    else
       progress = do_constant_variable_unlinked(ir) || progress;
    progress = do_constant_folding(ir) || progress;
+   progress = do_cse(ir) || progress;
    progress = do_algebraic(ir) || progress;
    progress = do_lower_jumps(ir) || progress;
    progress = do_vec_index_to_swizzle(ir) || progress;
diff --git a/mesalib/src/glsl/glsl_parser_extras.h b/mesalib/src/glsl/glsl_parser_extras.h
index 32f26c7f0..a30653eab 100755
--- a/mesalib/src/glsl/glsl_parser_extras.h
+++ b/mesalib/src/glsl/glsl_parser_extras.h
@@ -354,6 +354,8 @@ struct _mesa_glsl_parse_state {
    bool AMD_vertex_shader_layer_warn;
    bool ARB_shading_language_420pack_enable;
    bool ARB_shading_language_420pack_warn;
+   bool ARB_sample_shading_enable;
+   bool ARB_sample_shading_warn;
    bool EXT_shader_integer_mix_enable;
    bool EXT_shader_integer_mix_warn;
    bool ARB_shader_atomic_counters_enable;
diff --git a/mesalib/src/glsl/glsl_types.h b/mesalib/src/glsl/glsl_types.h
index fdb1f3a6e..96eee5e64 100644
--- a/mesalib/src/glsl/glsl_types.h
+++ b/mesalib/src/glsl/glsl_types.h
@@ -459,7 +459,7 @@ struct glsl_type {
     */
    bool contains_atomic() const
    {
-      return atomic_size();
+      return atomic_size() > 0;
    }
 
    /**
diff --git a/mesalib/src/glsl/ir.h b/mesalib/src/glsl/ir.h
index 5b30fe59b..2f06fb9ea 100644
--- a/mesalib/src/glsl/ir.h
+++ b/mesalib/src/glsl/ir.h
@@ -133,6 +133,7 @@ public:
    virtual class ir_return *            as_return()           { return NULL; }
    virtual class ir_if *                as_if()               { return NULL; }
    virtual class ir_swizzle *           as_swizzle()          { return NULL; }
+   virtual class ir_texture *           as_texture()          { return NULL; }
    virtual class ir_constant *          as_constant()         { return NULL; }
    virtual class ir_discard *           as_discard()          { return NULL; }
    virtual class ir_jump *              as_jump()             { return NULL; }
@@ -1731,6 +1732,11 @@ public:
       v->visit(this);
    }
 
+   virtual ir_texture *as_texture()
+   {
+      return this;
+   }
+
    virtual ir_visitor_status accept(ir_hierarchical_visitor *);
 
    /**
diff --git a/mesalib/src/glsl/ir_optimization.h b/mesalib/src/glsl/ir_optimization.h
index 074686c5d..3ca9f5744 100644
--- a/mesalib/src/glsl/ir_optimization.h
+++ b/mesalib/src/glsl/ir_optimization.h
@@ -77,6 +77,7 @@ bool do_constant_variable_unlinked(exec_list *instructions);
 bool do_copy_propagation(exec_list *instructions);
 bool do_copy_propagation_elements(exec_list *instructions);
 bool do_constant_propagation(exec_list *instructions);
+bool do_cse(exec_list *instructions);
 void do_dead_builtin_varyings(struct gl_context *ctx,
                               gl_shader *producer, gl_shader *consumer,
                               unsigned num_tfeedback_decls,
diff --git a/mesalib/src/glsl/opt_cse.cpp b/mesalib/src/glsl/opt_cse.cpp
new file mode 100644
index 000000000..c0fdb23e6
--- /dev/null
+++ b/mesalib/src/glsl/opt_cse.cpp
@@ -0,0 +1,599 @@
+/*
+ * Copyright © 2013 Intel Corporation
+ *
+ * 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
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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.
+ */
+
+/**
+ * \file opt_cse.cpp
+ *
+ * constant subexpression elimination at the GLSL IR level.
+ *
+ * Compare to brw_fs_cse.cpp for a more complete CSE implementation.  This one
+ * is generic and handles texture operations, but it's rather simple currently
+ * and doesn't support modification of variables in the available expressions
+ * list, so it can't do variables other than uniforms or shader inputs.
+ */
+
+#include "ir.h"
+#include "ir_visitor.h"
+#include "ir_rvalue_visitor.h"
+#include "ir_basic_block.h"
+#include "ir_optimization.h"
+#include "ir_builder.h"
+#include "glsl_types.h"
+
+using namespace ir_builder;
+
+static bool debug = false;
+
+namespace {
+
+/**
+ * This is the record of an available expression for common subexpression
+ * elimination.
+ */
+class ae_entry : public exec_node
+{
+public:
+   ae_entry(ir_instruction *base_ir, ir_rvalue **val)
+      : val(val), base_ir(base_ir)
+   {
+      assert(val);
+      assert(*val);
+      assert(base_ir);
+
+      var = NULL;
+   }
+
+   /**
+    * The pointer to the expression that we might be able to reuse
+    *
+    * Note the double pointer -- this is the place in the base_ir expression
+    * tree that we would rewrite to move the expression out to a new variable
+    * assignment.
+    */
+   ir_rvalue **val;
+
+   /**
+    * Root instruction in the basic block where the expression appeared.
+    *
+    * This is used so that we can insert the new variable declaration into the
+    * instruction stream (since *val is just somewhere in base_ir's expression
+    * tree).
+    */
+   ir_instruction *base_ir;
+
+   /**
+    * The variable that the expression has been stored in, if it's been CSEd
+    * once already.
+    */
+   ir_variable *var;
+};
+
+class cse_visitor : public ir_rvalue_visitor {
+public:
+   cse_visitor(exec_list *validate_instructions)
+      : validate_instructions(validate_instructions)
+   {
+      progress = false;
+      mem_ctx = ralloc_context(NULL);
+      this->ae = new(mem_ctx) exec_list;
+   }
+   ~cse_visitor()
+   {
+      ralloc_free(mem_ctx);
+   }
+
+   virtual ir_visitor_status visit_enter(ir_function_signature *ir);
+   virtual ir_visitor_status visit_enter(ir_loop *ir);
+   virtual ir_visitor_status visit_enter(ir_if *ir);
+   virtual ir_visitor_status visit_enter(ir_call *ir);
+   virtual void handle_rvalue(ir_rvalue **rvalue);
+
+   bool progress;
+
+private:
+   void *mem_ctx;
+
+   ir_rvalue *try_cse(ir_rvalue *rvalue);
+   void add_to_ae(ir_rvalue **rvalue);
+
+   /** List of ae_entry: The available expressions to reuse */
+   exec_list *ae;
+
+   /**
+    * The whole shader, so that we can validate_ir_tree in debug mode.
+    *
+    * This proved quite useful when trying to get the tree manipulation
+    * right.
+    */
+   exec_list *validate_instructions;
+};
+
+/**
+ * Visitor to walk an expression tree to check that all variables referenced
+ * are constants.
+ */
+class is_cse_candidate_visitor : public ir_hierarchical_visitor
+{
+public:
+
+   is_cse_candidate_visitor()
+      : ok(true)
+   {
+   }
+
+   virtual ir_visitor_status visit(ir_dereference_variable *ir);
+
+   bool ok;
+};
+
+
+class contains_rvalue_visitor : public ir_rvalue_visitor
+{
+public:
+
+   contains_rvalue_visitor(ir_rvalue *val)
+      : val(val)
+   {
+      found = false;
+   }
+
+   virtual void handle_rvalue(ir_rvalue **rvalue);
+
+   bool found;
+
+private:
+   ir_rvalue *val;
+};
+
+} /* unnamed namespace */
+
+static void
+dump_ae(exec_list *ae)
+{
+   int i = 0;
+
+   printf("CSE: AE contents:\n");
+   foreach_list(node, ae) {
+      ae_entry *entry = (ae_entry *)node;
+
+      printf("CSE:   AE %2d (%p): ", i, entry);
+      (*entry->val)->print();
+      printf("\n");
+
+      if (entry->var)
+         printf("CSE:     in var %p:\n", entry->var);
+
+      i++;
+   }
+}
+
+ir_visitor_status
+is_cse_candidate_visitor::visit(ir_dereference_variable *ir)
+{
+   /* Currently, since we don't handle kills of the ae based on variables
+    * getting assigned, we can only handle constant variables.
+    */
+   if (ir->var->read_only) {
+      return visit_continue;
+   } else {
+      ok = false;
+      return visit_stop;
+   }
+}
+
+void
+contains_rvalue_visitor::handle_rvalue(ir_rvalue **rvalue)
+{
+   if (*rvalue == val)
+      found = true;
+}
+
+static bool
+contains_rvalue(ir_rvalue *haystack, ir_rvalue *needle)
+{
+   contains_rvalue_visitor v(needle);
+   haystack->accept(&v);
+   return v.found;
+}
+
+static bool
+is_cse_candidate(ir_rvalue *ir)
+{
+   /* Our temporary variable assignment generation isn't ready to handle
+    * anything bigger than a vector.
+    */
+   if (!ir->type->is_vector() && !ir->type->is_scalar())
+      return false;
+
+   /* Only handle expressions and textures currently.  We may want to extend
+    * to variable-index array dereferences at some point.
+    */
+   switch (ir->ir_type) {
+   case ir_type_expression:
+   case ir_type_texture:
+      break;
+   default:
+      return false;
+   }
+
+   is_cse_candidate_visitor v;
+
+   ir->accept(&v);
+
+   return v.ok;
+}
+
+static bool
+equals(ir_rvalue *a, ir_rvalue *b);
+
+static bool
+equals(ir_constant *a, ir_constant *b)
+{
+   if (!a || !b)
+      return false;
+
+   if (a->type != b->type)
+      return false;
+
+   for (unsigned i = 0; i < a->type->components(); i++) {
+      if (a->value.u[i] != b->value.u[i])
+         return false;
+   }
+
+   return true;
+}
+
+static bool
+equals(ir_dereference_variable *a, ir_dereference_variable *b)
+{
+   if (!a || !b)
+      return false;
+
+   return a->var == b->var;
+}
+
+static bool
+equals(ir_dereference_array *a, ir_dereference_array *b)
+{
+   if (!a || !b)
+      return false;
+
+   if (!equals(a->array, b->array))
+      return false;
+
+   if (!equals(a->array_index, b->array_index))
+      return false;
+
+   return true;
+}
+
+static bool
+equals(ir_swizzle *a, ir_swizzle *b)
+{
+   if (!a || !b)
+      return false;
+
+   if (a->type != b->type)
+      return false;
+
+   if (a->mask.x != b->mask.x ||
+       a->mask.y != b->mask.y ||
+       a->mask.z != b->mask.z ||
+       a->mask.w != b->mask.w) {
+      return false;
+   }
+
+   return equals(a->val, b->val);
+}
+
+static bool
+equals(ir_texture *a, ir_texture *b)
+{
+   if (!a || !b)
+      return false;
+
+   if (a->type != b->type)
+      return false;
+
+   if (a->op != b->op)
+      return false;
+
+   if (!equals(a->coordinate, b->coordinate))
+      return false;
+
+   if (!equals(a->projector, b->projector))
+      return false;
+
+   if (!equals(a->shadow_comparitor, b->shadow_comparitor))
+      return false;
+
+   if (!equals(a->offset, b->offset))
+      return false;
+
+   if (!equals(a->sampler, b->sampler))
+      return false;
+
+   switch (a->op) {
+   case ir_tex:
+   case ir_lod:
+   case ir_query_levels:
+      break;
+   case ir_txb:
+      if (!equals(a->lod_info.bias, b->lod_info.bias))
+         return false;
+      break;
+   case ir_txl:
+   case ir_txf:
+   case ir_txs:
+      if (!equals(a->lod_info.lod, b->lod_info.lod))
+         return false;
+      break;
+   case ir_txd:
+      if (!equals(a->lod_info.grad.dPdx, b->lod_info.grad.dPdx) ||
+          !equals(a->lod_info.grad.dPdy, b->lod_info.grad.dPdy))
+         return false;
+   case ir_txf_ms:
+      if (!equals(a->lod_info.sample_index, b->lod_info.sample_index))
+         return false;
+      break;
+   case ir_tg4:
+      if (!equals(a->lod_info.component, b->lod_info.component))
+         return false;
+   default:
+      assert(!"Unrecognized texture op");
+   }
+
+   return true;
+}
+
+static bool
+equals(ir_expression *a, ir_expression *b)
+{
+   if (!a || !b)
+      return false;
+
+   if (a->type != b->type)
+      return false;
+
+   if (a->operation != b->operation)
+      return false;
+
+   for (unsigned i = 0; i < a->get_num_operands(); i++) {
+      if (!equals(a->operands[i], b->operands[i]))
+         return false;
+   }
+
+   return true;
+}
+
+static bool
+equals(ir_rvalue *a, ir_rvalue *b)
+{
+   if (!a || !b)
+      return !a && !b;
+
+   if (a->type != b->type)
+      return false;
+
+   switch (a->ir_type) {
+   case ir_type_texture:
+      return equals(a->as_texture(), b->as_texture());
+
+   case ir_type_constant:
+      return equals(a->as_constant(), b->as_constant());
+
+   case ir_type_expression:
+      return equals(a->as_expression(), b->as_expression());
+
+   case ir_type_dereference_variable:
+      return equals(a->as_dereference_variable(), b->as_dereference_variable());
+
+   case ir_type_dereference_array:
+      return equals(a->as_dereference_array(), b->as_dereference_array());
+
+   case ir_type_swizzle:
+      return equals(a->as_swizzle(), b->as_swizzle());
+
+   default:
+      return false;
+   }
+}
+
+/**
+ * Tries to find and return a reference to a previous computation of a given
+ * expression.
+ *
+ * Walk the list of available expressions checking if any of them match the
+ * rvalue, and if so, move the previous copy of the expression to a temporary
+ * and return a reference of the temporary.
+ */
+ir_rvalue *
+cse_visitor::try_cse(ir_rvalue *rvalue)
+{
+   foreach_list(node, ae) {
+      ae_entry *entry = (ae_entry *)node;
+
+      if (debug) {
+         printf("Comparing to AE %p: ", entry);
+         (*entry->val)->print();
+         printf("\n");
+      }
+
+      if (!equals(rvalue, *entry->val))
+         continue;
+
+      if (debug) {
+         printf("CSE: Replacing: ");
+         (*entry->val)->print();
+         printf("\n");
+         printf("CSE:      with: ");
+         rvalue->print();
+         printf("\n");
+      }
+
+      if (!entry->var) {
+         ir_instruction *base_ir = entry->base_ir;
+
+         ir_variable *var = new(rvalue) ir_variable(rvalue->type,
+                                                    "cse",
+                                                    ir_var_auto);
+
+         /* Write the previous expression result into a new variable. */
+         base_ir->insert_before(var);
+         ir_assignment *assignment = assign(var, *entry->val);
+         base_ir->insert_before(assignment);
+
+         /* Replace the expression in the original tree with a deref of the
+          * variable, but keep tracking the expression for further reuse.
+          */
+         *entry->val = new(rvalue) ir_dereference_variable(var);
+         entry->val = &assignment->rhs;
+
+         entry->var = var;
+
+         /* Update the base_irs in the AE list.  We have to be sure that
+          * they're correct -- expressions from our base_ir that weren't moved
+          * need to stay in this base_ir (so that later consumption of them
+          * puts new variables between our new variable and our base_ir), but
+          * expressions from our base_ir that we *did* move need base_ir
+          * updated so that any further elimination from inside gets its new
+          * assignments put before our new assignment.
+          */
+         foreach_list(fixup_node, ae) {
+            ae_entry *fixup_entry = (ae_entry *)fixup_node;
+            if (contains_rvalue(assignment->rhs, *fixup_entry->val))
+               fixup_entry->base_ir = assignment;
+         }
+
+         if (debug)
+            dump_ae(ae);
+      }
+
+      /* Replace the expression in our current tree with the variable. */
+      return new(rvalue) ir_dereference_variable(entry->var);
+   }
+
+   return NULL;
+}
+
+/** Add the rvalue to the list of available expressions for CSE. */
+void
+cse_visitor::add_to_ae(ir_rvalue **rvalue)
+{
+   if (debug) {
+      printf("CSE: Add to AE: ");
+      (*rvalue)->print();
+      printf("\n");
+   }
+
+   ae->push_tail(new(mem_ctx) ae_entry(base_ir, rvalue));
+
+   if (debug)
+      dump_ae(ae);
+}
+
+void
+cse_visitor::handle_rvalue(ir_rvalue **rvalue)
+{
+   if (!*rvalue)
+      return;
+
+   if (debug) {
+      printf("CSE: handle_rvalue ");
+      (*rvalue)->print();
+      printf("\n");
+   }
+
+   if (!is_cse_candidate(*rvalue))
+      return;
+
+   ir_rvalue *new_rvalue = try_cse(*rvalue);
+   if (new_rvalue) {
+      *rvalue = new_rvalue;
+      progress = true;
+
+      if (debug)
+         validate_ir_tree(validate_instructions);
+   } else {
+      add_to_ae(rvalue);
+   }
+}
+
+ir_visitor_status
+cse_visitor::visit_enter(ir_if *ir)
+{
+   handle_rvalue(&ir->condition);
+
+   ae->make_empty();
+   visit_list_elements(this, &ir->then_instructions);
+
+   ae->make_empty();
+   visit_list_elements(this, &ir->else_instructions);
+
+   ae->make_empty();
+   return visit_continue_with_parent;
+}
+
+ir_visitor_status
+cse_visitor::visit_enter(ir_function_signature *ir)
+{
+   ae->make_empty();
+   visit_list_elements(this, &ir->body);
+
+   ae->make_empty();
+   return visit_continue_with_parent;
+}
+
+ir_visitor_status
+cse_visitor::visit_enter(ir_loop *ir)
+{
+   ae->make_empty();
+   visit_list_elements(this, &ir->body_instructions);
+
+   ae->make_empty();
+   return visit_continue_with_parent;
+}
+
+ir_visitor_status
+cse_visitor::visit_enter(ir_call *ir)
+{
+   /* Because call is an exec_list of ir_rvalues, handle_rvalue gets passed a
+    * pointer to the (ir_rvalue *) on the stack.  Since we save those pointers
+    * in the AE list, we can't let handle_rvalue get called.
+    */
+   return visit_continue_with_parent;
+}
+
+/**
+ * Does a (uniform-value) constant subexpression elimination pass on the code
+ * present in the instruction stream.
+ */
+bool
+do_cse(exec_list *instructions)
+{
+   cse_visitor v(instructions);
+
+   visit_list_elements(&v, instructions);
+
+   return v.progress;
+}
diff --git a/mesalib/src/glsl/standalone_scaffolding.cpp b/mesalib/src/glsl/standalone_scaffolding.cpp
index 7a1cf6877..cbff6d182 100644
--- a/mesalib/src/glsl/standalone_scaffolding.cpp
+++ b/mesalib/src/glsl/standalone_scaffolding.cpp
@@ -97,6 +97,7 @@ void initialize_context_to_defaults(struct gl_context *ctx, gl_api api)
    ctx->Extensions.ARB_explicit_attrib_location = true;
    ctx->Extensions.ARB_fragment_coord_conventions = true;
    ctx->Extensions.ARB_gpu_shader5 = true;
+   ctx->Extensions.ARB_sample_shading = true;
    ctx->Extensions.ARB_shader_bit_encoding = true;
    ctx->Extensions.ARB_shader_stencil_export = true;
    ctx->Extensions.ARB_shader_texture_lod = true;
diff --git a/mesalib/src/mapi/glapi/gen/ARB_sample_shading.xml b/mesalib/src/mapi/glapi/gen/ARB_sample_shading.xml
new file mode 100644
index 000000000..cc8296a47
--- /dev/null
+++ b/mesalib/src/mapi/glapi/gen/ARB_sample_shading.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0"?>
+<!DOCTYPE OpenGLAPI SYSTEM "gl_API.dtd">
+
+<!-- Note: no GLX protocol info yet. -->
+
+<OpenGLAPI>
+
+<category name="GL_ARB_sample_shading" number="70">
+
+   <enum name="SAMPLE_SHADING_ARB"                          value="0x8C36"/>
+   <enum name="MIN_SAMPLE_SHADING_VALUE_ARB"                value="0x8C37"/>
+
+   <function name="MinSampleShadingARB" alias="MinSampleShading">
+      <param name="value" type="GLfloat"/>
+   </function>
+
+</category>
+
+</OpenGLAPI>
diff --git a/mesalib/src/mapi/glapi/gen/GL4x.xml b/mesalib/src/mapi/glapi/gen/GL4x.xml
new file mode 100644
index 000000000..6706278ce
--- /dev/null
+++ b/mesalib/src/mapi/glapi/gen/GL4x.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0"?>
+<!DOCTYPE OpenGLAPI SYSTEM "gl_API.dtd">
+
+<!-- Note: no GLX protocol info yet. -->
+
+<OpenGLAPI>
+
+<category name="4.0">
+  <enum name="SAMPLE_SHADING"                          value="0x8C36"/>
+  <enum name="MIN_SAMPLE_SHADING_VALUE"                value="0x8C37"/>
+
+  <function name="MinSampleShading" offset="assign">
+    <param name="value" type="GLfloat"/>
+  </function>
+</category>
+
+<category name="4.3">
+
+</category>
+
+</OpenGLAPI>
diff --git a/mesalib/src/mapi/glapi/gen/Makefile.am b/mesalib/src/mapi/glapi/gen/Makefile.am
index 390245216..cbbf659dd 100644
--- a/mesalib/src/mapi/glapi/gen/Makefile.am
+++ b/mesalib/src/mapi/glapi/gen/Makefile.am
@@ -108,6 +108,7 @@ API_XML = \
 	ARB_invalidate_subdata.xml \
 	ARB_map_buffer_range.xml \
 	ARB_robustness.xml \
+	ARB_sample_shading.xml \
 	ARB_sampler_objects.xml \
 	ARB_seamless_cube_map.xml \
 	ARB_shader_atomic_counters.xml \
@@ -144,7 +145,9 @@ API_XML = \
 	NV_texture_barrier.xml \
 	NV_vdpau_interop.xml \
 	OES_EGL_image.xml \
-	GL3x.xml
+	GL3x.xml \
+	GL4x.xml
+
 
 
 COMMON = $(API_XML) \
diff --git a/mesalib/src/mapi/glapi/gen/gl_API.xml b/mesalib/src/mapi/glapi/gen/gl_API.xml
index eb42258fa..97d67244c 100755
--- a/mesalib/src/mapi/glapi/gen/gl_API.xml
+++ b/mesalib/src/mapi/glapi/gen/gl_API.xml
@@ -8187,7 +8187,7 @@
 <xi:include href="ARB_draw_buffers_blend.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
 <xi:include href="AMD_draw_buffers_blend.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
 
-<!-- 70. GL_ARB_sample_shading -->
+<xi:include href="ARB_sample_shading.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
 <xi:include href="ARB_texture_cube_map_array.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
 <xi:include href="ARB_texture_gather.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
 <!-- 73. GL_ARB_texture_query_lod -->
@@ -13122,4 +13122,6 @@
 
 <xi:include href="NV_vdpau_interop.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
 
+<xi:include href="GL4x.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
+
 </OpenGLAPI>
diff --git a/mesalib/src/mesa/drivers/common/meta.c b/mesalib/src/mesa/drivers/common/meta.c
index 798efa680..aa50dde73 100644
--- a/mesalib/src/mesa/drivers/common/meta.c
+++ b/mesalib/src/mesa/drivers/common/meta.c
@@ -1729,10 +1729,10 @@ blitframebuffer_texture(struct gl_context *ctx,
             }
             else {
                assert(target == GL_TEXTURE_RECTANGLE_ARB);
-               s0 = srcX0;
-               s1 = srcX1;
-               t0 = srcY0;
-               t1 = srcY1;
+               s0 = (float) srcX0;
+               s1 = (float) srcX1;
+               t0 = (float) srcY0;
+               t1 = (float) srcY1;
             }
 
             /* setup vertex positions */
@@ -2825,7 +2825,7 @@ _mesa_meta_DrawPixels(struct gl_context *ctx,
             _mesa_StencilMask(mask);
 
             _mesa_ProgramLocalParameter4fARB(GL_FRAGMENT_PROGRAM_ARB, 0,
-                                             255.0 / mask, 0.5, 0.0, 0.0);
+                                             255.0f / mask, 0.5f, 0.0f, 0.0f);
 
             _mesa_DrawArrays(GL_TRIANGLE_FAN, 0, 4);
          }
@@ -3184,7 +3184,7 @@ setup_texture_coords(GLenum faceTarget,
          r = (slice + 0.5f) / depth;
       }
       else if (faceTarget == GL_TEXTURE_2D_ARRAY)
-         r = slice;
+         r = (float) slice;
       else
          r = 0.0F;
       coords0[0] = 0.0F; /* s */
@@ -3204,28 +3204,28 @@ setup_texture_coords(GLenum faceTarget,
       coords0[0] = 0.0F; /* s */
       coords0[1] = 0.0F; /* t */
       coords0[2] = 0.0F; /* r */
-      coords1[0] = width;
+      coords1[0] = (float) width;
       coords1[1] = 0.0F;
       coords1[2] = 0.0F;
-      coords2[0] = width;
-      coords2[1] = height;
+      coords2[0] = (float) width;
+      coords2[1] = (float) height;
       coords2[2] = 0.0F;
       coords3[0] = 0.0F;
-      coords3[1] = height;
+      coords3[1] = (float) height;
       coords3[2] = 0.0F;
       break;
    case GL_TEXTURE_1D_ARRAY:
       coords0[0] = 0.0F; /* s */
-      coords0[1] = slice; /* t */
+      coords0[1] = (float) slice; /* t */
       coords0[2] = 0.0F; /* r */
       coords1[0] = 1.0f;
-      coords1[1] = slice;
+      coords1[1] = (float) slice;
       coords1[2] = 0.0F;
       coords2[0] = 1.0F;
-      coords2[1] = slice;
+      coords2[1] = (float) slice;
       coords2[2] = 0.0F;
       coords3[0] = 0.0F;
-      coords3[1] = slice;
+      coords3[1] = (float) slice;
       coords3[2] = 0.0F;
       break;
 
diff --git a/mesalib/src/mesa/main/dd.h b/mesalib/src/mesa/main/dd.h
index 501192199..d7c432713 100644
--- a/mesalib/src/mesa/main/dd.h
+++ b/mesalib/src/mesa/main/dd.h
@@ -843,6 +843,14 @@ struct dd_function_table {
                                    struct gl_transform_feedback_object *obj);
 
    /**
+    * Return the number of vertices written to a stream during the last
+    * Begin/EndTransformFeedback block.
+    */
+   GLsizei (*GetTransformFeedbackVertexCount)(struct gl_context *ctx,
+                                              struct gl_transform_feedback_object *obj,
+                                              GLuint stream);
+
+   /**
     * \name GL_NV_texture_barrier interface
     */
    void (*TextureBarrier)(struct gl_context *ctx);
diff --git a/mesalib/src/mesa/main/enable.c b/mesalib/src/mesa/main/enable.c
index 5e2fd80d2..dd6a772f9 100644
--- a/mesalib/src/mesa/main/enable.c
+++ b/mesalib/src/mesa/main/enable.c
@@ -802,6 +802,17 @@ _mesa_set_enable(struct gl_context *ctx, GLenum cap, GLboolean state)
          ctx->Multisample.SampleCoverageInvert = state;
          break;
 
+      /* GL_ARB_sample_shading */
+      case GL_SAMPLE_SHADING:
+         if (!_mesa_is_desktop_gl(ctx))
+            goto invalid_enum_error;
+         CHECK_EXTENSION(ARB_sample_shading, cap);
+         if (ctx->Multisample.SampleShading == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE);
+         ctx->Multisample.SampleShading = state;
+         break;
+
       /* GL_IBM_rasterpos_clip */
       case GL_RASTER_POSITION_UNCLIPPED_IBM:
          if (ctx->API != API_OPENGL_COMPAT)
@@ -1594,6 +1605,13 @@ _mesa_IsEnabled( GLenum cap )
          CHECK_EXTENSION(ARB_texture_multisample);
          return ctx->Multisample.SampleMask;
 
+      /* ARB_sample_shading */
+      case GL_SAMPLE_SHADING:
+         if (!_mesa_is_desktop_gl(ctx))
+            goto invalid_enum_error;
+         CHECK_EXTENSION(ARB_sample_shading);
+         return ctx->Multisample.SampleShading;
+
       default:
          goto invalid_enum_error;
    }
diff --git a/mesalib/src/mesa/main/extensions.c b/mesalib/src/mesa/main/extensions.c
index 285ec377c..48c4e9f1b 100644
--- a/mesalib/src/mesa/main/extensions.c
+++ b/mesalib/src/mesa/main/extensions.c
@@ -118,6 +118,7 @@ static const struct extension extension_table[] = {
    { "GL_ARB_point_sprite",                        o(ARB_point_sprite),                        GL,             2003 },
    { "GL_ARB_provoking_vertex",                    o(EXT_provoking_vertex),                    GL,             2009 },
    { "GL_ARB_robustness",                          o(dummy_true),                              GL,             2010 },
+   { "GL_ARB_sample_shading",                      o(ARB_sample_shading),                      GL,             2009 },
    { "GL_ARB_sampler_objects",                     o(dummy_true),                              GL,             2009 },
    { "GL_ARB_seamless_cube_map",                   o(ARB_seamless_cube_map),                   GL,             2009 },
    { "GL_ARB_shader_atomic_counters",              o(ARB_shader_atomic_counters),              GL,             2011 },
diff --git a/mesalib/src/mesa/main/get.c b/mesalib/src/mesa/main/get.c
index 6e72ff5c2..6a0de0c16 100644
--- a/mesalib/src/mesa/main/get.c
+++ b/mesalib/src/mesa/main/get.c
@@ -131,6 +131,7 @@ enum value_extra {
    EXTRA_VERSION_30,
    EXTRA_VERSION_31,
    EXTRA_VERSION_32,
+   EXTRA_VERSION_40,
    EXTRA_API_GL,
    EXTRA_API_GL_CORE,
    EXTRA_API_ES2,
@@ -391,6 +392,7 @@ extra_NV_primitive_restart[] = {
 static const int extra_version_30[] = { EXTRA_VERSION_30, EXTRA_END };
 static const int extra_version_31[] = { EXTRA_VERSION_31, EXTRA_END };
 static const int extra_version_32[] = { EXTRA_VERSION_32, EXTRA_END };
+static const int extra_version_40[] = { EXTRA_VERSION_40, EXTRA_END };
 
 static const int extra_gl30_es3[] = {
     EXTRA_VERSION_30,
@@ -410,6 +412,12 @@ static const int extra_gl32_ARB_geometry_shader4[] = {
     EXTRA_END
 };
 
+static const int extra_gl40_ARB_sample_shading[] = {
+   EXTRA_VERSION_40,
+   EXT(ARB_sample_shading),
+   EXTRA_END
+};
+
 static const int
 extra_ARB_vertex_program_api_es2[] = {
    EXT(ARB_vertex_program),
diff --git a/mesalib/src/mesa/main/get_hash_params.py b/mesalib/src/mesa/main/get_hash_params.py
index 9f79f3406..0851b7b70 100644
--- a/mesalib/src/mesa/main/get_hash_params.py
+++ b/mesalib/src/mesa/main/get_hash_params.py
@@ -83,6 +83,9 @@ descriptor=[
   [ "SAMPLE_BUFFERS_ARB", "BUFFER_INT(Visual.sampleBuffers), extra_new_buffers" ],
   [ "SAMPLES_ARB", "BUFFER_INT(Visual.samples), extra_new_buffers" ],
 
+# GL_ARB_sample_shading
+  [ "MIN_SAMPLE_SHADING_VALUE_ARB", "CONTEXT_FLOAT(Multisample.MinSampleShadingValue), extra_gl40_ARB_sample_shading" ],
+
 # GL_SGIS_generate_mipmap
   [ "GENERATE_MIPMAP_HINT_SGIS", "CONTEXT_ENUM(Hint.GenerateMipmap), NO_EXTRA" ],
 
diff --git a/mesalib/src/mesa/main/mtypes.h b/mesalib/src/mesa/main/mtypes.h
index a1a5eb4bf..b5c5583d6 100644
--- a/mesalib/src/mesa/main/mtypes.h
+++ b/mesalib/src/mesa/main/mtypes.h
@@ -274,6 +274,11 @@ typedef enum
 #define VARYING_BIT_VAR(V) BITFIELD64_BIT(VARYING_SLOT_VAR0 + (V))
 /*@}*/
 
+/**
+ * Bitflags for system values.
+ */
+#define SYSTEM_BIT_SAMPLE_ID BITFIELD64_BIT(SYSTEM_VALUE_SAMPLE_ID)
+#define SYSTEM_BIT_SAMPLE_POS BITFIELD64_BIT(SYSTEM_VALUE_SAMPLE_POS)
 
 /**
  * Determine if the given gl_varying_slot appears in the fragment shader.
@@ -306,12 +311,13 @@ typedef enum
     * register is written.  No FRAG_RESULT_DATAn will be written.
     */
    FRAG_RESULT_COLOR = 2,
+   FRAG_RESULT_SAMPLE_MASK = 3,
 
    /* FRAG_RESULT_DATAn are the per-render-target (GLSL gl_FragData[n]
     * or ARB_fragment_program fragment.color[n]) color results.  If
     * any are written, FRAG_RESULT_COLOR will not be written.
     */
-   FRAG_RESULT_DATA0 = 3,
+   FRAG_RESULT_DATA0 = 4,
    FRAG_RESULT_MAX = (FRAG_RESULT_DATA0 + MAX_DRAW_BUFFERS)
 } gl_frag_result;
 
@@ -872,6 +878,8 @@ struct gl_multisample_attrib
    GLboolean SampleCoverage;
    GLfloat SampleCoverageValue;
    GLboolean SampleCoverageInvert;
+   GLboolean SampleShading;
+   GLfloat MinSampleShadingValue;
 
    /* ARB_texture_multisample / GL3.2 additions */
    GLboolean SampleMask;
@@ -1902,6 +1910,8 @@ typedef enum
    SYSTEM_VALUE_FRONT_FACE,  /**< Fragment shader only (not done yet) */
    SYSTEM_VALUE_VERTEX_ID,   /**< Vertex shader only */
    SYSTEM_VALUE_INSTANCE_ID, /**< Vertex shader only */
+   SYSTEM_VALUE_SAMPLE_ID,   /**< Fragment shader only */
+   SYSTEM_VALUE_SAMPLE_POS,  /**< Fragment shader only */
    SYSTEM_VALUE_MAX          /**< Number of values */
 } gl_system_value;
 
@@ -3156,6 +3166,12 @@ struct gl_constants
     */
    GLboolean PrimitiveRestartInSoftware;
 
+   /**
+    * Always use the GetTransformFeedbackVertexCount() driver hook, rather
+    * than passing the transform feedback object to the drawing function.
+    */
+   GLboolean AlwaysUseGetTransformFeedbackVertexCount;
+
    /** GL_ARB_map_buffer_alignment */
    GLuint MinMapBufferAlignment;
 
@@ -3239,6 +3255,7 @@ struct gl_extensions
    GLboolean ARB_occlusion_query;
    GLboolean ARB_occlusion_query2;
    GLboolean ARB_point_sprite;
+   GLboolean ARB_sample_shading;
    GLboolean ARB_seamless_cube_map;
    GLboolean ARB_shader_atomic_counters;
    GLboolean ARB_shader_bit_encoding;
diff --git a/mesalib/src/mesa/main/multisample.c b/mesalib/src/mesa/main/multisample.c
index bd97c5096..599cdee74 100644
--- a/mesalib/src/mesa/main/multisample.c
+++ b/mesalib/src/mesa/main/multisample.c
@@ -119,6 +119,24 @@ _mesa_SampleMaski(GLuint index, GLbitfield mask)
    ctx->Multisample.SampleMaskValue = mask;
 }
 
+/**
+ * Called via glMinSampleShadingARB
+ */
+void GLAPIENTRY
+_mesa_MinSampleShading(GLclampf value)
+{
+   GET_CURRENT_CONTEXT(ctx);
+
+   if (!ctx->Extensions.ARB_sample_shading || !_mesa_is_desktop_gl(ctx)) {
+      _mesa_error(ctx, GL_INVALID_OPERATION, "glMinSampleShading");
+      return;
+   }
+
+   FLUSH_VERTICES(ctx, 0);
+
+   ctx->Multisample.MinSampleShadingValue = CLAMP(value, 0.0, 1.0);
+   ctx->NewState |= _NEW_MULTISAMPLE;
+}
 
 /**
  * Helper for checking a requested sample count against the limit
diff --git a/mesalib/src/mesa/main/multisample.h b/mesalib/src/mesa/main/multisample.h
index 66848d269..7441d3ee9 100644
--- a/mesalib/src/mesa/main/multisample.h
+++ b/mesalib/src/mesa/main/multisample.h
@@ -44,6 +44,8 @@ _mesa_GetMultisamplefv(GLenum pname, GLuint index, GLfloat* val);
 extern void GLAPIENTRY
 _mesa_SampleMaski(GLuint index, GLbitfield mask);
 
+extern void GLAPIENTRY
+_mesa_MinSampleShading(GLclampf value);
 
 extern GLenum
 _mesa_check_sample_count(struct gl_context *ctx, GLenum target,
diff --git a/mesalib/src/mesa/main/performance_monitor.c b/mesalib/src/mesa/main/performance_monitor.c
index 8dfa8261e..17cae5183 100644
--- a/mesalib/src/mesa/main/performance_monitor.c
+++ b/mesalib/src/mesa/main/performance_monitor.c
@@ -127,7 +127,7 @@ _mesa_GetPerfMonitorGroupsAMD(GLint *numGroups, GLsizei groupsSize,
 
    if (groupsSize > 0 && groups != NULL) {
       unsigned i;
-      unsigned n = MIN2(groupsSize, ctx->PerfMonitor.NumGroups);
+      unsigned n = MIN2((GLuint) groupsSize, ctx->PerfMonitor.NumGroups);
 
       /* We just use the index in the Groups array as the ID. */
       for (i = 0; i < n; i++)
@@ -156,7 +156,7 @@ _mesa_GetPerfMonitorCountersAMD(GLuint group, GLint *numCounters,
 
    if (counters != NULL) {
       unsigned i;
-      unsigned n = MIN2(group_obj->NumCounters, countersSize);
+      unsigned n = MIN2(group_obj->NumCounters, (GLuint) countersSize);
       for (i = 0; i < n; i++) {
          /* We just use the index in the Counters array as the ID. */
          counters[i] = i;
@@ -379,7 +379,7 @@ _mesa_SelectPerfMonitorCountersAMD(GLuint monitor, GLboolean enable,
                                    GLuint *counterList)
 {
    GET_CURRENT_CONTEXT(ctx);
-   unsigned i;
+   int i;
    struct gl_perf_monitor_object *m;
    const struct gl_perf_monitor_group *group_obj;
 
diff --git a/mesalib/src/mesa/main/transformfeedback.c b/mesalib/src/mesa/main/transformfeedback.c
index bc9b52ab9..76d213b16 100644
--- a/mesalib/src/mesa/main/transformfeedback.c
+++ b/mesalib/src/mesa/main/transformfeedback.c
@@ -205,17 +205,27 @@ _mesa_free_transform_feedback(struct gl_context *ctx)
 }
 
 
+/** Initialize the fields of a gl_transform_feedback_object. */
+void
+_mesa_init_transform_feedback_object(struct gl_transform_feedback_object *obj,
+                                     GLuint name)
+{
+   if (!obj)
+      return;
+
+   obj->Name = name;
+   obj->RefCount = 1;
+   obj->EverBound = GL_FALSE;
+}
+
+
 /** Default fallback for ctx->Driver.NewTransformFeedback() */
 static struct gl_transform_feedback_object *
 new_transform_feedback(struct gl_context *ctx, GLuint name)
 {
    struct gl_transform_feedback_object *obj;
    obj = CALLOC_STRUCT(gl_transform_feedback_object);
-   if (obj) {
-      obj->Name = name;
-      obj->RefCount = 1;
-      obj->EverBound = GL_FALSE;
-   }
+   _mesa_init_transform_feedback_object(obj, name);
    return obj;
 }
 
diff --git a/mesalib/src/mesa/main/transformfeedback.h b/mesalib/src/mesa/main/transformfeedback.h
index 0ffaab508..7aecd66a7 100644
--- a/mesalib/src/mesa/main/transformfeedback.h
+++ b/mesalib/src/mesa/main/transformfeedback.h
@@ -91,6 +91,9 @@ _mesa_GetTransformFeedbackVarying(GLuint program, GLuint index,
 
 
 /*** GL_ARB_transform_feedback2 ***/
+extern void
+_mesa_init_transform_feedback_object(struct gl_transform_feedback_object *obj,
+                                     GLuint name);
 
 struct gl_transform_feedback_object *
 _mesa_lookup_transform_feedback_object(struct gl_context *ctx, GLuint name);
diff --git a/mesalib/src/mesa/main/uniforms.c b/mesalib/src/mesa/main/uniforms.c
index 2e847fe31..17e24f678 100644
--- a/mesalib/src/mesa/main/uniforms.c
+++ b/mesalib/src/mesa/main/uniforms.c
@@ -853,7 +853,7 @@ _mesa_GetActiveAtomicCounterBufferiv(GLuint program, GLuint bufferIndex,
    GET_CURRENT_CONTEXT(ctx);
    struct gl_shader_program *shProg;
    struct gl_active_atomic_buffer *ab;
-   int i;
+   GLuint i;
 
    if (!ctx->Extensions.ARB_shader_atomic_counters) {
       _mesa_error(ctx, GL_INVALID_OPERATION,
diff --git a/mesalib/src/mesa/main/vdpau.c b/mesalib/src/mesa/main/vdpau.c
index e21a26b43..359757607 100644
--- a/mesalib/src/mesa/main/vdpau.c
+++ b/mesalib/src/mesa/main/vdpau.c
@@ -324,7 +324,7 @@ void GLAPIENTRY
 _mesa_VDPAUMapSurfacesNV(GLsizei numSurfaces, const GLintptr *surfaces)
 {
    GET_CURRENT_CONTEXT(ctx);
-   int i, j;
+   int i;
 
    if (!ctx->vdpDevice || !ctx->vdpGetProcAddress || !ctx->vdpSurfaces) {
       _mesa_error(ctx, GL_INVALID_OPERATION, "VDPAUUnmapSurfacesNV");
@@ -348,6 +348,7 @@ _mesa_VDPAUMapSurfacesNV(GLsizei numSurfaces, const GLintptr *surfaces)
    for (i = 0; i < numSurfaces; ++i) {
       struct vdp_surface *surf = (struct vdp_surface *)surfaces[i];
       unsigned numTextureNames = surf->output ? 1 : 4;
+      unsigned j;
 
       for (j = 0; j < numTextureNames; ++j) {
          struct gl_texture_object *tex = surf->textures[j];
@@ -377,7 +378,7 @@ void GLAPIENTRY
 _mesa_VDPAUUnmapSurfacesNV(GLsizei numSurfaces, const GLintptr *surfaces)
 {
    GET_CURRENT_CONTEXT(ctx);
-   int i, j;
+   int i;
 
    if (!ctx->vdpDevice || !ctx->vdpGetProcAddress || !ctx->vdpSurfaces) {
       _mesa_error(ctx, GL_INVALID_OPERATION, "VDPAUUnmapSurfacesNV");
@@ -401,6 +402,7 @@ _mesa_VDPAUUnmapSurfacesNV(GLsizei numSurfaces, const GLintptr *surfaces)
    for (i = 0; i < numSurfaces; ++i) {
       struct vdp_surface *surf = (struct vdp_surface *)surfaces[i];
       unsigned numTextureNames = surf->output ? 1 : 4;
+      unsigned j;
 
       for (j = 0; j < numTextureNames; ++j) {
          struct gl_texture_object *tex = surf->textures[j];
diff --git a/mesalib/src/mesa/program/prog_print.c b/mesalib/src/mesa/program/prog_print.c
index cf852132d..fa9063f5b 100644
--- a/mesalib/src/mesa/program/prog_print.c
+++ b/mesalib/src/mesa/program/prog_print.c
@@ -311,6 +311,7 @@ arb_output_attrib_string(GLint index, GLenum progType)
       "result.depth", /* FRAG_RESULT_DEPTH */
       "result.(one)", /* FRAG_RESULT_STENCIL */
       "result.color", /* FRAG_RESULT_COLOR */
+      "result.samplemask", /* FRAG_RESULT_SAMPLE_MASK */
       "result.color[0]", /* FRAG_RESULT_DATA0 (named for GLSL's gl_FragData) */
       "result.color[1]",
       "result.color[2]",
diff --git a/mesalib/src/mesa/program/prog_statevars.c b/mesalib/src/mesa/program/prog_statevars.c
index 145c07c67..f6fd53576 100644
--- a/mesalib/src/mesa/program/prog_statevars.c
+++ b/mesalib/src/mesa/program/prog_statevars.c
@@ -349,6 +349,9 @@ _mesa_fetch_state(struct gl_context *ctx, const gl_state_index state[],
          }
       }
       return;
+   case STATE_NUM_SAMPLES:
+      ((int *)value)[0] = ctx->DrawBuffer->Visual.samples;
+      return;
    case STATE_DEPTH_RANGE:
       value[0] = ctx->Viewport.Near;                     /* near       */
       value[1] = ctx->Viewport.Far;                      /* far        */
@@ -665,6 +668,9 @@ _mesa_program_state_flags(const gl_state_index state[STATE_LENGTH])
    case STATE_PROGRAM_MATRIX:
       return _NEW_TRACK_MATRIX;
 
+   case STATE_NUM_SAMPLES:
+      return _NEW_BUFFERS;
+
    case STATE_DEPTH_RANGE:
       return _NEW_VIEWPORT;
 
@@ -852,6 +858,9 @@ append_token(char *dst, gl_state_index k)
    case STATE_TEXENV_COLOR:
       append(dst, "texenv");
       break;
+   case STATE_NUM_SAMPLES:
+      append(dst, "numsamples");
+      break;
    case STATE_DEPTH_RANGE:
       append(dst, "depth.range");
       break;
@@ -1027,6 +1036,8 @@ _mesa_program_state_string(const gl_state_index state[STATE_LENGTH])
       break;
    case STATE_FOG_COLOR:
       break;
+   case STATE_NUM_SAMPLES:
+      break;
    case STATE_DEPTH_RANGE:
       break;
    case STATE_FRAGMENT_PROGRAM:
diff --git a/mesalib/src/mesa/program/prog_statevars.h b/mesalib/src/mesa/program/prog_statevars.h
index ec22b7376..23a9f48c3 100644
--- a/mesalib/src/mesa/program/prog_statevars.h
+++ b/mesalib/src/mesa/program/prog_statevars.h
@@ -103,6 +103,8 @@ typedef enum gl_state_index_ {
 
    STATE_TEXENV_COLOR,
 
+   STATE_NUM_SAMPLES,    /* An integer, not a float like the other state vars */
+
    STATE_DEPTH_RANGE,
 
    STATE_VERTEX_PROGRAM,
diff --git a/mesalib/src/mesa/program/program.c b/mesalib/src/mesa/program/program.c
index 093d37297..a102ec17a 100644
--- a/mesalib/src/mesa/program/program.c
+++ b/mesalib/src/mesa/program/program.c
@@ -32,6 +32,7 @@
 #include "main/glheader.h"
 #include "main/context.h"
 #include "main/hash.h"
+#include "main/macros.h"
 #include "program.h"
 #include "prog_cache.h"
 #include "prog_parameter.h"
@@ -1024,3 +1025,34 @@ _mesa_postprocess_program(struct gl_context *ctx, struct gl_program *prog)
 
    }
 }
+
+/* Gets the minimum number of shader invocations per fragment.
+ * This function is useful to determine if we need to do per
+ * sample shading or per fragment shading.
+ */
+GLint
+_mesa_get_min_invocations_per_fragment(struct gl_context *ctx,
+                                       const struct gl_fragment_program *prog)
+{
+   /* From ARB_sample_shading specification:
+    * "Using gl_SampleID in a fragment shader causes the entire shader
+    *  to be evaluated per-sample."
+    *
+    * "Using gl_SamplePosition in a fragment shader causes the entire
+    *  shader to be evaluated per-sample."
+    *
+    * "If MULTISAMPLE or SAMPLE_SHADING_ARB is disabled, sample shading
+    *  has no effect."
+    */
+   if (ctx->Multisample.Enabled) {
+      if (prog->Base.SystemValuesRead & (SYSTEM_BIT_SAMPLE_ID |
+                                         SYSTEM_BIT_SAMPLE_POS))
+         return MAX2(ctx->DrawBuffer->Visual.samples, 1);
+      else if (ctx->Multisample.SampleShading)
+         return MAX2(ceil(ctx->Multisample.MinSampleShadingValue *
+                          ctx->DrawBuffer->Visual.samples), 1);
+      else
+         return 1;
+   }
+   return 1;
+}
diff --git a/mesalib/src/mesa/program/program.h b/mesalib/src/mesa/program/program.h
index 34965ab99..353ccab47 100644
--- a/mesalib/src/mesa/program/program.h
+++ b/mesalib/src/mesa/program/program.h
@@ -187,6 +187,9 @@ _mesa_valid_register_index(const struct gl_context *ctx,
 extern void
 _mesa_postprocess_program(struct gl_context *ctx, struct gl_program *prog);
 
+extern GLint
+_mesa_get_min_invocations_per_fragment(struct gl_context *ctx,
+                                       const struct gl_fragment_program *prog);
 
 static inline GLuint
 _mesa_program_target_to_index(GLenum v)
diff --git a/mesalib/src/mesa/state_tracker/st_cb_xformfb.c b/mesalib/src/mesa/state_tracker/st_cb_xformfb.c
index e1a7a88a1..e824fe9b3 100644
--- a/mesalib/src/mesa/state_tracker/st_cb_xformfb.c
+++ b/mesalib/src/mesa/state_tracker/st_cb_xformfb.c
@@ -74,8 +74,8 @@ st_new_transform_feedback(struct gl_context *ctx, GLuint name)
    if (!obj)
       return NULL;
 
-   obj->base.Name = name;
-   obj->base.RefCount = 1;
+   _mesa_init_transform_feedback_object(&obj->base, name);
+
    return &obj->base;
 }
 
diff --git a/mesalib/src/mesa/state_tracker/st_draw.h b/mesalib/src/mesa/state_tracker/st_draw.h
index 3313fc8c7..394473b20 100644
--- a/mesalib/src/mesa/state_tracker/st_draw.h
+++ b/mesalib/src/mesa/state_tracker/st_draw.h
@@ -77,7 +77,7 @@ st_feedback_draw_vbo(struct gl_context *ctx,
 static INLINE unsigned
 pointer_to_offset(const void *ptr)
 {
-   return (unsigned) (((unsigned long) ptr) & 0xffffffffUL);
+   return (unsigned) (((GLsizeiptr) ptr) & 0xffffffffUL);
 }
 
 
diff --git a/mesalib/src/mesa/swrast/s_texfetch_tmp.h b/mesalib/src/mesa/swrast/s_texfetch_tmp.h
index 7a687532d..e2521b50c 100644
--- a/mesalib/src/mesa/swrast/s_texfetch_tmp.h
+++ b/mesalib/src/mesa/swrast/s_texfetch_tmp.h
@@ -1537,7 +1537,7 @@ static void FETCH(f_z24_s8)( const struct swrast_texture_image *texImage,
    /* only return Z, not stencil data */
    const GLuint *src = TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
    const GLdouble scale = 1.0 / (GLdouble) 0xffffff;
-   texel[0] = ((*src) >> 8) * scale;
+   texel[0] = (GLfloat) (((*src) >> 8) * scale);
    ASSERT(texImage->Base.TexFormat == MESA_FORMAT_Z24_S8 ||
 	  texImage->Base.TexFormat == MESA_FORMAT_Z24_X8);
    ASSERT(texel[0] >= 0.0F);
@@ -1555,7 +1555,7 @@ static void FETCH(f_s8_z24)( const struct swrast_texture_image *texImage,
    /* only return Z, not stencil data */
    const GLuint *src = TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
    const GLdouble scale = 1.0 / (GLdouble) 0xffffff;
-   texel[0] = ((*src) & 0x00ffffff) * scale;
+   texel[0] = (GLfloat) (((*src) & 0x00ffffff) * scale);
    ASSERT(texImage->Base.TexFormat == MESA_FORMAT_S8_Z24 ||
 	  texImage->Base.TexFormat == MESA_FORMAT_X8_Z24);
    ASSERT(texel[0] >= 0.0F);
diff --git a/mesalib/src/mesa/vbo/vbo_attrib_tmp.h b/mesalib/src/mesa/vbo/vbo_attrib_tmp.h
index 02c283da4..bbc020539 100644
--- a/mesalib/src/mesa/vbo/vbo_attrib_tmp.h
+++ b/mesalib/src/mesa/vbo/vbo_attrib_tmp.h
@@ -140,7 +140,7 @@ static inline float conv_i10_to_norm_float(const struct gl_context *ctx, int i10
        (ctx->API == API_OPENGL_CORE && ctx->Version >= 42)) {
       /* Equation 2.3 above. */
       float f = ((float) val.x) / 511.0F;
-      return MAX2(f, -1.0);
+      return MAX2(f, -1.0f);
    } else {
       /* Equation 2.2 above. */
       return (2.0F * (float)val.x + 1.0F) * (1.0F  / 1023.0F);
@@ -156,7 +156,7 @@ static inline float conv_i2_to_norm_float(const struct gl_context *ctx, int i2)
        (ctx->API == API_OPENGL_CORE && ctx->Version >= 42)) {
       /* Equation 2.3 above. */
       float f = (float) val.x;
-      return MAX2(f, -1.0);
+      return MAX2(f, -1.0f);
    } else {
       /* Equation 2.2 above. */
       return (2.0F * (float)val.x + 1.0F) * (1.0F / 3.0F);
diff --git a/mesalib/src/mesa/vbo/vbo_exec_array.c b/mesalib/src/mesa/vbo/vbo_exec_array.c
index 1670409d4..f25a9dec3 100644
--- a/mesalib/src/mesa/vbo/vbo_exec_array.c
+++ b/mesalib/src/mesa/vbo/vbo_exec_array.c
@@ -1464,6 +1464,16 @@ vbo_draw_transform_feedback(struct gl_context *ctx, GLenum mode,
       return;
    }
 
+   if (ctx->Driver.GetTransformFeedbackVertexCount &&
+       (ctx->Const.AlwaysUseGetTransformFeedbackVertexCount ||
+        (ctx->Const.PrimitiveRestartInSoftware &&
+         ctx->Array._PrimitiveRestart) ||
+        !vbo_all_varyings_in_vbos(exec->array.inputs))) {
+      GLsizei n = ctx->Driver.GetTransformFeedbackVertexCount(ctx, obj, stream);
+      vbo_draw_arrays(ctx, mode, 0, n, numInstances, 0);
+      return;
+   }
+
    vbo_bind_arrays(ctx);
 
    /* init most fields to zero */
diff --git a/pixman/configure.ac b/pixman/configure.ac
index 8a3b62268..5e512be8e 100644
--- a/pixman/configure.ac
+++ b/pixman/configure.ac
@@ -54,7 +54,7 @@ AC_PREREQ([2.57])
 
 m4_define([pixman_major], 0)
 m4_define([pixman_minor], 31)
-m4_define([pixman_micro], 1)
+m4_define([pixman_micro], 3)
 
 m4_define([pixman_version],[pixman_major.pixman_minor.pixman_micro])
 
@@ -1044,6 +1044,22 @@ fi
 
 AC_MSG_RESULT($support_for_float128)
 
+dnl =====================================
+dnl __builtin_clz
+
+support_for_builtin_clz=no
+
+AC_MSG_CHECKING(for __builtin_clz)
+AC_LINK_IFELSE([AC_LANG_SOURCE([[
+unsigned int x = 11; int main (void) { return __builtin_clz(x); }
+]])], support_for_builtin_clz=yes)
+
+if test x$support_for_builtin_clz = xyes; then
+   AC_DEFINE([HAVE_BUILTIN_CLZ], [], [Whether the compiler supports __builtin_clz])
+fi
+
+AC_MSG_RESULT($support_for_builtin_clz)
+
 dnl ==================
 dnl libpng
 
diff --git a/pixman/pixman/pixman-matrix.c b/pixman/pixman/pixman-matrix.c
index 89b96826b..4032c137a 100644
--- a/pixman/pixman/pixman-matrix.c
+++ b/pixman/pixman/pixman-matrix.c
@@ -37,7 +37,7 @@
 static force_inline int
 count_leading_zeros (uint32_t x)
 {
-#ifdef __GNUC__
+#ifdef HAVE_BUILTIN_CLZ
     return __builtin_clz (x);
 #else
     int n = 0;
diff --git a/pixman/pixman/pixman.h b/pixman/pixman/pixman.h
index 7ff9fb52a..509ba5e53 100644
--- a/pixman/pixman/pixman.h
+++ b/pixman/pixman/pixman.h
@@ -1030,7 +1030,7 @@ struct pixman_triangle
 #define pixman_trapezoid_valid(t)				   \
     ((t)->left.p1.y != (t)->left.p2.y &&			   \
      (t)->right.p1.y != (t)->right.p2.y &&			   \
-     (int) ((t)->bottom - (t)->top) > 0)
+     ((t)->bottom > (t)->top))
 
 struct pixman_span_fix
 {
diff --git a/pixman/test/trap-crasher.c b/pixman/test/trap-crasher.c
index 4e4cac297..77be1c98b 100644
--- a/pixman/test/trap-crasher.c
+++ b/pixman/test/trap-crasher.c
@@ -5,7 +5,7 @@ int
 main()
 {
     pixman_image_t *dst;
-    pixman_trapezoid_t traps[1] = {
+    pixman_trapezoid_t traps[] = {
 	{
 	    2147483646,
 	    2147483647,
@@ -18,6 +18,18 @@ main()
 		{ 0, 2147483647 }
 	    }
 	},
+	{
+	    32768,
+	    - 2147483647,
+	    {
+		{ 0, 0 },
+		{ 0, 2147483647 }
+	    },
+	    {
+		{ 65536, 0 },
+		{ 0, 2147483647 }
+	    }
+	},
     };
 
     dst = pixman_image_create_bits (PIXMAN_a8, 1, 1, NULL, -1);
diff --git a/xkbcomp/action.c b/xkbcomp/action.c
index 3b82e647e..4623c0caf 100644
--- a/xkbcomp/action.c
+++ b/xkbcomp/action.c
@@ -41,7 +41,7 @@ static ExprDef constFalse;
 /***====================================================================***/
 
 static Bool
-stringToAction(char *str, unsigned *type_rtrn)
+stringToAction(const char *str, unsigned *type_rtrn)
 {
     if (str == NULL)
         return False;
@@ -134,7 +134,7 @@ stringToAction(char *str, unsigned *type_rtrn)
 }
 
 static Bool
-stringToField(char *str, unsigned *field_rtrn)
+stringToField(const char *str, unsigned *field_rtrn)
 {
 
     if (str == NULL)
@@ -1397,8 +1397,8 @@ HandleActionDef(ExprDef * def,
 
 int
 SetActionField(XkbDescPtr xkb,
-               char *elem,
-               char *field,
+               const char *elem,
+               const char *field,
                ExprDef * array_ndx, ExprDef * value, ActionInfo ** info_rtrn)
 {
     ActionInfo *new, *old;
diff --git a/xkbcomp/action.h b/xkbcomp/action.h
index 2fb7a5eb9..983b06e20 100644
--- a/xkbcomp/action.h
+++ b/xkbcomp/action.h
@@ -72,8 +72,8 @@ extern int HandleActionDef(ExprDef * /* def */ ,
     );
 
 extern int SetActionField(XkbDescPtr /* xkb */ ,
-                          char * /* elem */ ,
-                          char * /* field */ ,
+                          const char * /* elem */ ,
+                          const char * /* field */ ,
                           ExprDef * /* index */ ,
                           ExprDef * /* value */ ,
                           ActionInfo ** /* info_rtrn */
diff --git a/xkbcomp/compat.c b/xkbcomp/compat.c
index ab84eb4d3..3dd76581c 100644
--- a/xkbcomp/compat.c
+++ b/xkbcomp/compat.c
@@ -494,7 +494,7 @@ static LookupEntry useModMapValues[] = {
 static int
 SetInterpField(SymInterpInfo * si,
                XkbDescPtr xkb,
-               char *field,
+               const char *field,
                ExprDef * arrayNdx, ExprDef * value, CompatInfo * info)
 {
     int ok = 1;
diff --git a/xkbcomp/expr.c b/xkbcomp/expr.c
index 96fd95675..e0f957c15 100644
--- a/xkbcomp/expr.c
+++ b/xkbcomp/expr.c
@@ -292,7 +292,7 @@ ExprResolveModIndex(ExprDef * expr,
                     IdentLookupFunc lookup, XPointer lookupPriv)
 {
     int ok = 0;
-    char *bogus = NULL;
+    const char *bogus = NULL;
 
     switch (expr->op)
     {
@@ -382,7 +382,7 @@ ExprResolveBoolean(ExprDef * expr,
                    IdentLookupFunc lookup, XPointer lookupPriv)
 {
     int ok = 0;
-    char *bogus = NULL;
+    const char *bogus = NULL;
 
     switch (expr->op)
     {
@@ -715,7 +715,7 @@ ExprResolveString(ExprDef * expr,
     ExprResult leftRtrn, rightRtrn;
     ExprDef *left;
     ExprDef *right;
-    char *bogus = NULL;
+    const char *bogus = NULL;
 
     switch (expr->op)
     {
@@ -729,7 +729,7 @@ ExprResolveString(ExprDef * expr,
         val_rtrn->str = XkbAtomGetString(NULL, expr->value.str);
         if (val_rtrn->str == NULL)
         {
-            static char *empty = "";
+            static const char *empty = "";
             val_rtrn->str = empty;
         }
         return True;
@@ -767,7 +767,7 @@ ExprResolveString(ExprDef * expr,
             new = (char *) uAlloc(len);
             if (new)
             {
-                sprintf(new, "%s%s", leftRtrn.str, rightRtrn.str);
+                snprintf(new, len, "%s%s", leftRtrn.str, rightRtrn.str);
                 val_rtrn->str = new;
                 return True;
             }
@@ -822,7 +822,7 @@ ExprResolveKeyName(ExprDef * expr,
     int ok = 0;
     ExprDef *left;
     ExprResult leftRtrn;
-    char *bogus = NULL;
+    const char *bogus = NULL;
 
     switch (expr->op)
     {
@@ -941,7 +941,7 @@ ExprResolveMask(ExprDef * expr,
     int ok = 0;
     ExprResult leftRtrn, rightRtrn;
     ExprDef *left, *right;
-    char *bogus = NULL;
+    const char *bogus = NULL;
 
     switch (expr->op)
     {
diff --git a/xkbcomp/geometry.c b/xkbcomp/geometry.c
index 7f65c3af4..2daa213ac 100644
--- a/xkbcomp/geometry.c
+++ b/xkbcomp/geometry.c
@@ -258,9 +258,9 @@ ddText(Display * dpy, DoodadInfo * di)
     }
     if (di->section)
     {
-        sprintf(buf, "%s in section %s",
-                XkbAtomText(dpy, di->name, XkbMessage), scText(dpy,
-                                                               di->section));
+        snprintf(buf, sizeof(buf), "%s in section %s",
+                 XkbAtomText(dpy, di->name, XkbMessage),
+                 scText(dpy, di->section));
         return buf;
     }
     return XkbAtomText(dpy, di->name, XkbMessage);
@@ -967,7 +967,7 @@ AddDoodad(SectionInfo * si, GeometryInfo * info, DoodadInfo * new)
 }
 
 static DoodadInfo *
-FindDfltDoodadByTypeName(char *name, SectionInfo * si, GeometryInfo * info)
+FindDfltDoodadByTypeName(const char *name, SectionInfo *si, GeometryInfo *info)
 {
     DoodadInfo *dflt;
     unsigned type;
@@ -1408,7 +1408,7 @@ HandleIncludeGeometry(IncludeStmt * stmt, XkbDescPtr xkb, GeometryInfo * info,
 
 static int
 SetShapeField(ShapeInfo * si,
-              char *field,
+              const char *field,
               ExprDef * arrayNdx, ExprDef * value, GeometryInfo * info)
 {
     ExprResult tmp;
@@ -1440,7 +1440,7 @@ SetShapeField(ShapeInfo * si,
 
 static int
 SetShapeDoodadField(DoodadInfo * di,
-                    char *field,
+                    const char *field,
                     ExprDef * arrayNdx,
                     ExprDef * value, SectionInfo * si, GeometryInfo * info)
 {
@@ -1510,14 +1510,14 @@ SetShapeDoodadField(DoodadInfo * di,
 
 static int
 SetTextDoodadField(DoodadInfo * di,
-                   char *field,
+                   const char *field,
                    ExprDef * arrayNdx,
                    ExprDef * value, SectionInfo * si, GeometryInfo * info)
 {
     ExprResult tmp;
     unsigned def;
     unsigned type;
-    char *typeName = "text doodad";
+    const char *typeName = "text doodad";
     union
     {
         Atom *str;
@@ -1660,7 +1660,7 @@ SetTextDoodadField(DoodadInfo * di,
 
 static int
 SetIndicatorDoodadField(DoodadInfo * di,
-                        char *field,
+                        const char *field,
                         ExprDef * arrayNdx,
                         ExprDef * value,
                         SectionInfo * si, GeometryInfo * info)
@@ -1705,12 +1705,12 @@ SetIndicatorDoodadField(DoodadInfo * di,
 
 static int
 SetLogoDoodadField(DoodadInfo * di,
-                   char *field,
+                   const char *field,
                    ExprDef * arrayNdx,
                    ExprDef * value, SectionInfo * si, GeometryInfo * info)
 {
     ExprResult tmp;
-    char *typeName = "logo doodad";
+    const char *typeName = "logo doodad";
 
     if ((!uStrCaseCmp(field, "corner"))
         || (!uStrCaseCmp(field, "cornerradius")))
@@ -1786,7 +1786,7 @@ SetLogoDoodadField(DoodadInfo * di,
 
 static int
 SetDoodadField(DoodadInfo * di,
-               char *field,
+               const char *field,
                ExprDef * arrayNdx,
                ExprDef * value, SectionInfo * si, GeometryInfo * info)
 {
@@ -1889,7 +1889,7 @@ SetDoodadField(DoodadInfo * di,
 
 static int
 SetSectionField(SectionInfo * si,
-                char *field,
+                const char *field,
                 ExprDef * arrayNdx, ExprDef * value, GeometryInfo * info)
 {
     unsigned short *pField;
@@ -1977,7 +1977,7 @@ SetSectionField(SectionInfo * si,
 
 static int
 SetRowField(RowInfo * row,
-            char *field,
+            const char *field,
             ExprDef * arrayNdx, ExprDef * value, GeometryInfo * info)
 {
     ExprResult tmp;
@@ -2841,7 +2841,7 @@ HandleGeometryFile(XkbFile * file,
                    XkbDescPtr xkb, unsigned merge, GeometryInfo * info)
 {
     ParseCommon *stmt;
-    char *failWhat;
+    const char *failWhat;
 
     if (merge == MergeDefault)
         merge = MergeAugment;
@@ -3273,7 +3273,7 @@ FontFromParts(Atom fontTok,
               Atom setWidthTok, Atom varTok, int size, Atom encodingTok)
 {
     int totalSize;
-    char *font, *weight, *slant, *setWidth, *variant, *encoding;
+    const char *font, *weight, *slant, *setWidth, *variant, *encoding;
     char *rtrn;
 
     font = (fontTok != None ? XkbAtomGetString(NULL, fontTok) : DFLT_FONT);
@@ -3297,8 +3297,8 @@ FontFromParts(Atom fontTok,
     rtrn = uCalloc(totalSize, 1);
     if (rtrn)
     {
-        sprintf(rtrn, FONT_TEMPLATE, font, weight, slant, setWidth, variant,
-                size, encoding);
+        snprintf(rtrn, totalSize, FONT_TEMPLATE, font, weight, slant,
+                 setWidth, variant, size, encoding);
     }
     return rtrn;
 }
diff --git a/xkbcomp/indicators.c b/xkbcomp/indicators.c
index d4a362fb8..421ad583d 100644
--- a/xkbcomp/indicators.c
+++ b/xkbcomp/indicators.c
@@ -200,7 +200,7 @@ static LookupEntry groupComponentNames[] = {
 int
 SetIndicatorMapField(LEDInfo * led,
                      XkbDescPtr xkb,
-                     char *field, ExprDef * arrayNdx, ExprDef * value)
+                     const char *field, ExprDef *arrayNdx, ExprDef *value)
 {
     ExprResult rtrn;
     Bool ok;
diff --git a/xkbcomp/indicators.h b/xkbcomp/indicators.h
index 35ae38a4c..8e7884d7c 100644
--- a/xkbcomp/indicators.h
+++ b/xkbcomp/indicators.h
@@ -62,7 +62,7 @@ extern LEDInfo *AddIndicatorMap(LEDInfo * /* oldLEDs */ ,
 
 extern int SetIndicatorMapField(LEDInfo * /* led */ ,
                                 XkbDescPtr /* xkb */ ,
-                                char * /* field */ ,
+                                const char * /* field */ ,
                                 ExprDef * /* arrayNdx */ ,
                                 ExprDef *       /* value */
     );
diff --git a/xkbcomp/keytypes.c b/xkbcomp/keytypes.c
index da55d755d..375ca3e0d 100644
--- a/xkbcomp/keytypes.c
+++ b/xkbcomp/keytypes.c
@@ -879,7 +879,7 @@ SetLevelName(KeyTypeInfo * type, ExprDef * arrayNdx, ExprDef * value)
 static Bool
 SetKeyTypeField(KeyTypeInfo * type,
                 XkbDescPtr xkb,
-                char *field,
+                const char *field,
                 ExprDef * arrayNdx, ExprDef * value, KeyTypesInfo * info)
 {
     ExprResult tmp;
diff --git a/xkbcomp/listing.c b/xkbcomp/listing.c
index c05c3c65c..86c1dfb8b 100644
--- a/xkbcomp/listing.c
+++ b/xkbcomp/listing.c
@@ -312,18 +312,19 @@ AddDirectory(char *head, char *ptrn, char *rest, char *map)
     {
         char *tmp, *filename;
         struct stat sbuf;
+        size_t tmpsize;
 
         filename = FileName(file);
         if (!filename || filename[0] == '.')
             continue;
         if (ptrn && (!XkbNameMatchesPattern(filename, ptrn)))
             continue;
-        tmp =
-            (char *) uAlloc((head ? strlen(head) : 0) + strlen(filename) + 2);
+        tmpsize = (head ? strlen(head) : 0) + strlen(filename) + 2;
+        tmp = uAlloc(tmpsize);
         if (!tmp)
             continue;
-        sprintf(tmp, "%s%s%s", (head ? head : ""), (head ? "/" : ""),
-                filename);
+        snprintf(tmp, tmpsize, "%s%s%s",
+                 (head ? head : ""), (head ? "/" : ""), filename);
         if (stat(tmp, &sbuf) < 0)
         {
             uFree(tmp);
diff --git a/xkbcomp/symbols.c b/xkbcomp/symbols.c
index 5547999b5..d43ba9ffb 100644
--- a/xkbcomp/symbols.c
+++ b/xkbcomp/symbols.c
@@ -928,7 +928,7 @@ GetGroupIndex(KeyInfo * key,
 static Bool
 AddSymbolsToKey(KeyInfo * key,
                 XkbDescPtr xkb,
-                char *field,
+                const char *field,
                 ExprDef * arrayNdx, ExprDef * value, SymbolsInfo * info)
 {
     unsigned ndx, nSyms;
@@ -982,7 +982,7 @@ AddSymbolsToKey(KeyInfo * key,
 static Bool
 AddActionsToKey(KeyInfo * key,
                 XkbDescPtr xkb,
-                char *field,
+                const char *field,
                 ExprDef * arrayNdx, ExprDef * value, SymbolsInfo * info)
 {
     register int i;
@@ -1118,7 +1118,7 @@ static LookupEntry rgEntries[] = {
 static Bool
 SetSymbolsField(KeyInfo * key,
                 XkbDescPtr xkb,
-                char *field,
+                const char *field,
                 ExprDef * arrayNdx, ExprDef * value, SymbolsInfo * info)
 {
     Bool ok = True;
@@ -1235,7 +1235,7 @@ SetSymbolsField(KeyInfo * key,
              uStrCasePrefix("permanentoverlay", field))
     {
         Bool permanent = False;
-        char *which;
+        const char *which;
         int overlayNdx;
         if (uStrCasePrefix("permanent", field))
         {
diff --git a/xkbcomp/utils.c b/xkbcomp/utils.c
index 55efbe11f..541c33e14 100644
--- a/xkbcomp/utils.c
+++ b/xkbcomp/utils.c
@@ -88,65 +88,6 @@ uFree(Opaque ptr)
 }
 
 /***====================================================================***/
-/***                  FUNCTION ENTRY TRACKING                           ***/
-/***====================================================================***/
-
-static FILE *entryFile = NULL;
-int uEntryLevel;
-
-Boolean
-uSetEntryFile(char *name)
-{
-    if ((entryFile != NULL) && (entryFile != stderr))
-    {
-        fprintf(entryFile, "switching to %s\n", name ? name : "stderr");
-        fclose(entryFile);
-    }
-    if (name != NullString)
-        entryFile = fopen(name, "w");
-    else
-        entryFile = stderr;
-    if (entryFile == NULL)
-    {
-        entryFile = stderr;
-        return (False);
-    }
-    return (True);
-}
-
-void
-uEntry(int l, char *s, ...)
-{
-    int i;
-    va_list args;
-
-    for (i = 0; i < uEntryLevel; i++)
-    {
-        putc(' ', entryFile);
-    }
-    va_start(args, s);
-    vfprintf(entryFile, s, args);
-    va_end(args);
-    uEntryLevel += l;
-}
-
-void
-uExit(int l, char *rtVal)
-{
-    int i;
-
-    uEntryLevel -= l;
-    if (uEntryLevel < 0)
-        uEntryLevel = 0;
-    for (i = 0; i < uEntryLevel; i++)
-    {
-        putc(' ', entryFile);
-    }
-    fprintf(entryFile, "---> %p\n", rtVal);
-    return;
-}
-
-/***====================================================================***/
 /***			PRINT FUNCTIONS					***/
 /***====================================================================***/
 
diff --git a/xkbcomp/utils.h b/xkbcomp/utils.h
index ea9d1deaa..b644f7d3a 100644
--- a/xkbcomp/utils.h
+++ b/xkbcomp/utils.h
@@ -223,15 +223,6 @@ uInformation(const char * /* s */ , ...
 
 /***====================================================================***/
 
-#ifdef	ASSERTIONS_ON
-#define	uASSERT(where,why) \
-	{if (!(why)) uFatalError("assertion botched in %s ( why )\n",where);}
-#else
-#define	uASSERT(where,why)
-#endif
-
-/***====================================================================***/
-
 #ifndef DEBUG_VAR
 #define	DEBUG_VAR	debugFlags
 #endif
@@ -281,64 +272,4 @@ extern
 #define	uDEBUG_NOI5(f,s,a,b,c,d,e)
 #endif
 
-     extern Boolean uSetEntryFile(char *name);
-     extern void uEntry(int /* l */ ,
-                        char * /* s  */ , ...
-    ) _X_ATTRIBUTE_PRINTF(2, 3);
-
-     extern void uExit(int l, char *rtVal);
-#ifdef ENTRY_TRACKING_ON
-#define	ENTRY_BIT	0x10
-#define	LOW_ENTRY_BIT	0x1000
-#define	ENTER	(DEBUG_VAR&ENTRY_BIT)
-#define	FLAG(fLag)	(DEBUG_VAR&(fLag))
-
-     extern int uEntryLevel;
-
-#define	uENTRY(s)			{ if (ENTER) uEntry(1,s);}
-#define	uENTRY1(s,a)			{ if (ENTER) uEntry(1,s,a);}
-#define	uENTRY2(s,a,b)			{ if (ENTER) uEntry(1,s,a,b);}
-#define	uENTRY3(s,a,b,c)		{ if (ENTER) uEntry(1,s,a,b,c);}
-#define	uENTRY4(s,a,b,c,d)		{ if (ENTER) uEntry(1,s,a,b,c,d);}
-#define	uENTRY5(s,a,b,c,d,e)		{ if (ENTER) uEntry(1,s,a,b,c,d,e);}
-#define	uENTRY6(s,a,b,c,d,e,f)		{ if (ENTER) uEntry(1,s,a,b,c,d,e,f);}
-#define	uENTRY7(s,a,b,c,d,e,f,g)	{ if (ENTER) uEntry(1,s,a,b,c,d,e,f,g);}
-#define	uRETURN(v)			{ if (ENTER) uEntryLevel--; return(v); }
-#define	uVOIDRETURN			{ if (ENTER) uEntryLevel--; return; }
-
-#define	uFLAG_ENTRY(w,s)		{ if (FLAG(w)) uEntry(0,s);}
-#define	uFLAG_ENTRY1(w,s,a)		{ if (FLAG(w)) uEntry(0,s,a);}
-#define	uFLAG_ENTRY2(w,s,a,b)		{ if (FLAG(w)) uEntry(0,s,a,b);}
-#define	uFLAG_ENTRY3(w,s,a,b,c)		{ if (FLAG(w)) uEntry(0,s,a,b,c);}
-#define	uFLAG_ENTRY4(w,s,a,b,c,d)	{ if (FLAG(w)) uEntry(0,s,a,b,c,d);}
-#define	uFLAG_ENTRY5(w,s,a,b,c,d,e)	{ if (FLAG(w)) uEntry(0,s,a,b,c,d,e);}
-#define	uFLAG_ENTRY6(w,s,a,b,c,d,e,f)	{ if (FLAG(w)) uEntry(0,s,a,b,c,d,e,f);}
-#define	uFLAG_ENTRY7(w,s,a,b,c,d,e,f,g)	{ if(FLAG(w))uEntry(0,s,a,b,c,d,e,f,g);}
-#define	uFLAG_RETURN(v)			{ return(v);}
-#define	uFLAG_VOIDRETURN		{ return; }
-#else
-#define	uENTRY(s)
-#define	uENTRY1(s,a)
-#define	uENTRY2(s,a1,a2)
-#define	uENTRY3(s,a1,a2,a3)
-#define	uENTRY4(s,a1,a2,a3,a4)
-#define	uENTRY5(s,a1,a2,a3,a4,a5)
-#define	uENTRY6(s,a1,a2,a3,a4,a5,a6)
-#define	uENTRY7(s,a1,a2,a3,a4,a5,a6,a7)
-#define	uRETURN(v)	{ return(v); }
-#define	uVOIDRETURN	{ return; }
-
-#define	uFLAG_ENTRY(f,s)
-#define	uFLAG_ENTRY1(f,s,a)
-#define	uFLAG_ENTRY2(f,s,a,b)
-#define	uFLAG_ENTRY3(f,s,a,b,c)
-#define	uFLAG_ENTRY4(f,s,a,b,c,d)
-#define	uFLAG_ENTRY5(f,s,a,b,c,d,e)
-#define	uFLAG_ENTRY6(f,s,a,b,c,d,e,g)
-#define	uFLAG_ENTRY7(f,s,a,b,c,d,e,g,h)
-#define	uFLAG_RETURN(v)			{ return(v);}
-#define	uFLAG_VOIDRETURN		{ return; }
-#endif
-
-
 #endif /* UTILS_H */
diff --git a/xkbcomp/xkbcomp.c b/xkbcomp/xkbcomp.c
index 4e00c2ad6..7947ad417 100644
--- a/xkbcomp/xkbcomp.c
+++ b/xkbcomp/xkbcomp.c
@@ -745,7 +745,7 @@ parseArgs(int argc, char *argv[])
             ACTION("Exiting\n");
             exit(1);
         }
-        sprintf(outputFile, "stdin.%s", fileTypeExt[outputFormat]);
+        snprintf(outputFile, len, "stdin.%s", fileTypeExt[outputFormat]);
     }
     else if ((outputFile == NULL) && (inputFile != NULL))
     {
@@ -773,7 +773,7 @@ parseArgs(int argc, char *argv[])
         }
         ext = strrchr(base, '.');
         if (ext == NULL)
-            sprintf(outputFile, "%s.%s", base, fileTypeExt[outputFormat]);
+            snprintf(outputFile, len, "%s.%s", base, fileTypeExt[outputFormat]);
         else
         {
             strcpy(outputFile, base);
@@ -881,7 +881,6 @@ main(int argc, char *argv[])
     Status status;
 
     scan_set_file(stdin);
-    uSetEntryFile(NullString);
     uSetDebugFile(NullString);
     uSetErrorFile(NullString);
 
diff --git a/xorg-server/Makefile.am b/xorg-server/Makefile.am
index 7be4271d4..5bf760b2e 100644
--- a/xorg-server/Makefile.am
+++ b/xorg-server/Makefile.am
@@ -17,6 +17,14 @@ if RECORD
 RECORD_DIR=record
 endif
 
+if DRI3
+DRI3_DIR=dri3
+endif
+
+if PRESENT
+PRESENT_DIR=present
+endif
+
 SUBDIRS = \
 	doc \
 	man \
@@ -38,6 +46,8 @@ SUBDIRS = \
 	damageext \
 	$(COMPOSITE_DIR) \
 	$(GLX_DIR) \
+	$(PRESENT_DIR) \
+	$(DRI3_DIR) \
 	exa \
 	config \
 	hw \
@@ -91,6 +101,8 @@ DIST_SUBDIRS = \
 	glx \
 	exa \
 	config \
+	dri3 \
+	present \
 	hw \
 	test
 
diff --git a/xorg-server/Xext/shm.c b/xorg-server/Xext/shm.c
index 37c1ed88f..0bf27f4c6 100644..100755
--- a/xorg-server/Xext/shm.c
+++ b/xorg-server/Xext/shm.c
@@ -55,6 +55,7 @@ in this Software without prior written authorization from The Open Group.
 #include "xace.h"
 #include <X11/extensions/shmproto.h>
 #include <X11/Xfuncproto.h>
+#include <sys/mman.h>
 #include "protocol-versions.h"
 
 /* Needed for Solaris cross-zone shared memory extension */
@@ -91,15 +92,6 @@ in this Software without prior written authorization from The Open Group.
 
 #include "extinit.h"
 
-typedef struct _ShmDesc {
-    struct _ShmDesc *next;
-    int shmid;
-    int refcnt;
-    char *addr;
-    Bool writable;
-    unsigned long size;
-} ShmDescRec, *ShmDescPtr;
-
 typedef struct _ShmScrPrivateRec {
     CloseScreenProcPtr CloseScreen;
     ShmFuncsPtr shmFuncs;
@@ -408,8 +400,10 @@ ProcShmAttach(ClientPtr client)
         client->errorValue = stuff->readOnly;
         return BadValue;
     }
-    for (shmdesc = Shmsegs;
-         shmdesc && (shmdesc->shmid != stuff->shmid); shmdesc = shmdesc->next);
+    for (shmdesc = Shmsegs; shmdesc; shmdesc = shmdesc->next) {
+        if (!shmdesc->is_fd && shmdesc->shmid == stuff->shmid)
+            break;
+    }
     if (shmdesc) {
         if (!stuff->readOnly && !shmdesc->writable)
             return BadAccess;
@@ -419,6 +413,7 @@ ProcShmAttach(ClientPtr client)
         shmdesc = malloc(sizeof(ShmDescRec));
         if (!shmdesc)
             return BadAlloc;
+        shmdesc->is_fd = FALSE;
         shmdesc->addr = shmat(stuff->shmid, 0,
                               stuff->readOnly ? SHM_RDONLY : 0);
         if ((shmdesc->addr == ((char *) -1)) || SHMSTAT(stuff->shmid, &buf)) {
@@ -458,7 +453,10 @@ ShmDetachSegment(pointer value, /* must conform to DeleteType */
     if (--shmdesc->refcnt)
         return TRUE;
 #ifndef _MSC_VER
-    shmdt(shmdesc->addr);
+    if (shmdesc->is_fd)
+        munmap(shmdesc->addr, shmdesc->size);
+    else
+        shmdt(shmdesc->addr);
 #endif
     for (prev = &Shmsegs; *prev != shmdesc; prev = &(*prev)->next);
     *prev = shmdesc->next;
@@ -1116,6 +1114,122 @@ ProcShmCreatePixmap(ClientPtr client)
 }
 
 static int
+ProcShmAttachFd(ClientPtr client)
+{
+    int fd;
+    ShmDescPtr shmdesc;
+    REQUEST(xShmAttachFdReq);
+    struct stat statb;
+
+    SetReqFds(client, 1);
+    REQUEST_SIZE_MATCH(xShmAttachFdReq);
+    LEGAL_NEW_RESOURCE(stuff->shmseg, client);
+    if ((stuff->readOnly != xTrue) && (stuff->readOnly != xFalse)) {
+        client->errorValue = stuff->readOnly;
+        return BadValue;
+    }
+    fd = ReadFdFromClient(client);
+    if (fd < 0)
+        return BadMatch;
+
+    if (fstat(fd, &statb) < 0 || statb.st_size == 0) {
+        close(fd);
+        return BadMatch;
+    }
+
+    shmdesc = malloc(sizeof(ShmDescRec));
+    if (!shmdesc) {
+        close(fd);
+        return BadAlloc;
+    }
+    shmdesc->is_fd = TRUE;
+    shmdesc->addr = mmap(NULL, statb.st_size,
+                         stuff->readOnly ? PROT_READ : PROT_READ|PROT_WRITE,
+                         MAP_SHARED,
+                         fd, 0);
+
+    close(fd);
+    if ((shmdesc->addr == ((char *) -1))) {
+        free(shmdesc);
+        return BadAccess;
+    }
+
+    shmdesc->refcnt = 1;
+    shmdesc->writable = !stuff->readOnly;
+    shmdesc->size = statb.st_size;
+    shmdesc->next = Shmsegs;
+    Shmsegs = shmdesc;
+
+    if (!AddResource(stuff->shmseg, ShmSegType, (pointer) shmdesc))
+        return BadAlloc;
+    return Success;
+}
+
+static int
+ProcShmCreateSegment(ClientPtr client)
+{
+    int fd;
+    ShmDescPtr shmdesc;
+    REQUEST(xShmCreateSegmentReq);
+    xShmCreateSegmentReply rep = {
+        .type = X_Reply,
+        .nfd = 1,
+        .sequenceNumber = client->sequence,
+        .length = 0,
+    };
+    char template[] = "/tmp/shm-XXXXXX";
+
+    REQUEST_SIZE_MATCH(xShmCreateSegmentReq);
+    if ((stuff->readOnly != xTrue) && (stuff->readOnly != xFalse)) {
+        client->errorValue = stuff->readOnly;
+        return BadValue;
+    }
+    fd = mkstemp(template);
+    if (fd < 0)
+        return BadAlloc;
+    unlink(template);
+    if (ftruncate(fd, stuff->size) < 0) {
+        close(fd);
+        return BadAlloc;
+    }
+    shmdesc = malloc(sizeof(ShmDescRec));
+    if (!shmdesc) {
+        close(fd);
+        return BadAlloc;
+    }
+    shmdesc->is_fd = TRUE;
+    shmdesc->addr = mmap(NULL, stuff->size,
+                         stuff->readOnly ? PROT_READ : PROT_READ|PROT_WRITE,
+                         MAP_SHARED,
+                         fd, 0);
+
+    if ((shmdesc->addr == ((char *) -1))) {
+        close(fd);
+        free(shmdesc);
+        return BadAccess;
+    }
+
+    shmdesc->refcnt = 1;
+    shmdesc->writable = !stuff->readOnly;
+    shmdesc->size = stuff->size;
+    shmdesc->next = Shmsegs;
+    Shmsegs = shmdesc;
+
+    if (!AddResource(stuff->shmseg, ShmSegType, (pointer) shmdesc)) {
+        close(fd);
+        return BadAlloc;
+    }
+
+    if (WriteFdToClient(client, fd, TRUE) < 0) {
+        FreeResource(stuff->shmseg, RT_NONE);
+        close(fd);
+        return BadAlloc;
+    }
+    WriteToClient(client, sizeof (xShmCreateSegmentReply), &rep);
+    return Success;
+}
+
+static int
 ProcShmDispatch(ClientPtr client)
 {
     REQUEST(xReq);
@@ -1144,6 +1258,10 @@ ProcShmDispatch(ClientPtr client)
             return ProcPanoramiXShmCreatePixmap(client);
 #endif
         return ProcShmCreatePixmap(client);
+    case X_ShmAttachFd:
+        return ProcShmAttachFd(client);
+    case X_ShmCreateSegment:
+        return ProcShmCreateSegment(client);
     default:
         return BadRequest;
     }
@@ -1245,6 +1363,28 @@ SProcShmCreatePixmap(ClientPtr client)
 }
 
 static int
+SProcShmAttachFd(ClientPtr client)
+{
+    REQUEST(xShmAttachFdReq);
+    SetReqFds(client, 1);
+    swaps(&stuff->length);
+    REQUEST_SIZE_MATCH(xShmAttachFdReq);
+    swapl(&stuff->shmseg);
+    return ProcShmAttachFd(client);
+}
+
+static int
+SProcShmCreateSegment(ClientPtr client)
+{
+    REQUEST(xShmCreateSegmentReq);
+    swaps(&stuff->length);
+    REQUEST_SIZE_MATCH(xShmCreateSegmentReq);
+    swapl(&stuff->shmseg);
+    swapl(&stuff->size);
+    return ProcShmCreateSegment(client);
+}
+
+static int
 SProcShmDispatch(ClientPtr client)
 {
     REQUEST(xReq);
@@ -1261,6 +1401,10 @@ SProcShmDispatch(ClientPtr client)
         return SProcShmGetImage(client);
     case X_ShmCreatePixmap:
         return SProcShmCreatePixmap(client);
+    case X_ShmAttachFd:
+        return SProcShmAttachFd(client);
+    case X_ShmCreateSegment:
+        return SProcShmCreateSegment(client);
     default:
         return BadRequest;
     }
diff --git a/xorg-server/Xext/shmint.h b/xorg-server/Xext/shmint.h
index fa6941c90..db35fbbbe 100644
--- a/xorg-server/Xext/shmint.h
+++ b/xorg-server/Xext/shmint.h
@@ -56,6 +56,16 @@ typedef struct _ShmFuncs {
     void (*PutImage) (XSHM_PUT_IMAGE_ARGS);
 } ShmFuncs, *ShmFuncsPtr;
 
+typedef struct _ShmDesc {
+    struct _ShmDesc *next;
+    int shmid;
+    int refcnt;
+    char *addr;
+    Bool is_fd;
+    Bool writable;
+    unsigned long size;
+} ShmDescRec, *ShmDescPtr;
+
 extern _X_EXPORT void
  ShmRegisterFuncs(ScreenPtr pScreen, ShmFuncsPtr funcs);
 
diff --git a/xorg-server/Xext/sync.c b/xorg-server/Xext/sync.c
index 80190f0f0..b956c9ec8 100644
--- a/xorg-server/Xext/sync.c
+++ b/xorg-server/Xext/sync.c
@@ -141,7 +141,7 @@ SyncCheckWarnIsCounter(const SyncObject * pSync, const char *warning)
  *  interested in the counter.  The two functions below are used to
  *  delete and add triggers on this list.
  */
-static void
+void
 SyncDeleteTriggerFromSyncObject(SyncTrigger * pTrigger)
 {
     SyncTriggerList *pCur;
@@ -184,7 +184,7 @@ SyncDeleteTriggerFromSyncObject(SyncTrigger * pTrigger)
     }
 }
 
-static int
+int
 SyncAddTriggerToSyncObject(SyncTrigger * pTrigger)
 {
     SyncTriggerList *pCur;
@@ -914,6 +914,34 @@ SyncCreate(ClientPtr client, XID id, unsigned char type)
     return pSync;
 }
 
+int
+SyncCreateFenceFromFD(ClientPtr client, DrawablePtr pDraw, XID id, int fd, BOOL initially_triggered)
+{
+    SyncFence  *pFence;
+    int         status;
+
+    pFence = (SyncFence *) SyncCreate(client, id, SYNC_FENCE);
+    if (!pFence)
+        return BadAlloc;
+
+    status = miSyncInitFenceFromFD(pDraw, pFence, fd, initially_triggered);
+    if (status != Success) {
+        miSyncDestroyFence(pFence);
+        return status;
+    }
+
+    if (!AddResource(id, RTFence, (pointer) pFence))
+        return BadAlloc;
+
+    return Success;
+}
+
+int
+SyncFDFromFence(ClientPtr client, DrawablePtr pDraw, SyncFence *pFence)
+{
+    return miSyncFDFromFence(pDraw, pFence);
+}
+
 static SyncCounter *
 SyncCreateCounter(ClientPtr client, XSyncCounter id, CARD64 initialvalue)
 {
@@ -2653,7 +2681,16 @@ IdleTimeBlockHandler(pointer pCounter, struct timeval **wt, pointer LastSelectMa
     IdleTimeQueryValue(counter, &idle);
     counter->value = idle;      /* push, so CheckTrigger works */
 
-    if (less && XSyncValueLessOrEqual(idle, *less)) {
+    /**
+     * There's an indefinite amount of time between ProcessInputEvents()
+     * where the idle time is reset and the time we actually get here. idle
+     * may be past the lower bracket if we dawdled with the events, so
+     * check for whether we did reset and bomb out of select immediately.
+     */
+    if (less && XSyncValueGreaterThan(idle, *less) &&
+        LastEventTimeWasReset(priv->deviceid)) {
+        AdjustWaitForDelay(wt, 0);
+    } else if (less && XSyncValueLessOrEqual(idle, *less)) {
         /*
          * We've been idle for less than the threshold value, and someone
          * wants to know about that, but now we need to know whether they
diff --git a/xorg-server/Xext/syncsrv.h b/xorg-server/Xext/syncsrv.h
index c68229f46..45fca04da 100644
--- a/xorg-server/Xext/syncsrv.h
+++ b/xorg-server/Xext/syncsrv.h
@@ -136,4 +136,17 @@ extern void SyncDestroySystemCounter(pointer pCounter);
 
 extern SyncCounter *SyncInitDeviceIdleTime(DeviceIntPtr dev);
 extern void SyncRemoveDeviceIdleTime(SyncCounter *counter);
+
+int
+SyncCreateFenceFromFD(ClientPtr client, DrawablePtr pDraw, XID id, int fd, BOOL initially_triggered);
+
+int
+SyncFDFromFence(ClientPtr client, DrawablePtr pDraw, SyncFence *fence);
+
+void
+SyncDeleteTriggerFromSyncObject(SyncTrigger * pTrigger);
+
+int
+SyncAddTriggerToSyncObject(SyncTrigger * pTrigger);
+
 #endif                          /* _SYNCSRV_H_ */
diff --git a/xorg-server/Xext/xvdisp.c b/xorg-server/Xext/xvdisp.c
index 787729387..613867a6b 100644
--- a/xorg-server/Xext/xvdisp.c
+++ b/xorg-server/Xext/xvdisp.c
@@ -43,6 +43,7 @@ SOFTWARE.
 #include "xvdix.h"
 #ifdef MITSHM
 #include <X11/extensions/shmproto.h>
+#include "shmint.h"
 #endif
 
 #include "xvdisp.h"
@@ -949,18 +950,6 @@ ProcXvPutImage(ClientPtr client)
 }
 
 #ifdef MITSHM
-/* redefined here since it's not in any header file */
-typedef struct _ShmDesc {
-    struct _ShmDesc *next;
-    int shmid;
-    int refcnt;
-    char *addr;
-    Bool writable;
-    unsigned long size;
-} ShmDescRec, *ShmDescPtr;
-
-extern RESTYPE ShmSegType;
-extern int ShmCompletionCode;
 
 static int
 ProcXvShmPutImage(ClientPtr client)
diff --git a/xorg-server/configure.ac b/xorg-server/configure.ac
index d29f1706a..0d855f250 100644
--- a/xorg-server/configure.ac
+++ b/xorg-server/configure.ac
@@ -26,9 +26,9 @@ dnl
 dnl Process this file with autoconf to create configure.
 
 AC_PREREQ(2.60)
-AC_INIT([xorg-server], 1.14.99.3, [https://bugs.freedesktop.org/enter_bug.cgi?product=xorg], xorg-server)
-RELEASE_DATE="2013-10-18"
-RELEASE_NAME="Bundaberg"
+AC_INIT([xorg-server], 1.14.99.901, [https://bugs.freedesktop.org/enter_bug.cgi?product=xorg], xorg-server)
+RELEASE_DATE="2013-10-31"
+RELEASE_NAME="Bom Retiro"
 AC_CONFIG_SRCDIR([Makefile.am])
 AM_INIT_AUTOMAKE([foreign dist-bzip2])
 
@@ -228,10 +228,6 @@ dnl AGPGART headers
 AC_CHECK_HEADERS([linux/agpgart.h sys/agpio.h sys/agpgart.h], AGP=yes)
 AM_CONDITIONAL(AGP, [test "x$AGP" = xyes])
 
-dnl APM header
-AC_CHECK_HEADERS([linux/apm_bios.h], LNXAPM=yes)
-AM_CONDITIONAL(LNXAPM, [test "x$LNXAPM" = xyes])
-
 dnl fbdev header
 AC_CHECK_HEADERS([linux/fb.h], FBDEV=yes)
 AM_CONDITIONAL(FBDEVHW, [test "x$FBDEV" = xyes])
@@ -300,7 +296,7 @@ AC_CHECK_HEADER([machine/apmvar.h],[
 AM_CONDITIONAL(BSD_APM, [test "x$ac_cv_BSD_APM" = xyes])
 AM_CONDITIONAL(BSD_KQUEUE_APM, [test "x$ac_cv_BSD_KQUEUE_APM" = xyes])
 	
-dnl glibc backtrace support check (hw/xfree86/common/xf86Events.c)
+dnl glibc backtrace support check
 AC_CHECK_HEADER([execinfo.h],[
     AC_CHECK_LIB(c, backtrace, [
         AC_DEFINE(HAVE_BACKTRACE, 1, [Has backtrace support])
@@ -613,6 +609,8 @@ AC_ARG_ENABLE(xdm-auth-1,     AS_HELP_STRING([--disable-xdm-auth-1], [Build XDM-
 AC_ARG_ENABLE(glx,            AS_HELP_STRING([--disable-glx], [Build GLX extension (default: enabled)]), [GLX=$enableval], [GLX=yes])
 AC_ARG_ENABLE(dri,            AS_HELP_STRING([--enable-dri], [Build DRI extension (default: auto)]), [DRI=$enableval])
 AC_ARG_ENABLE(dri2,           AS_HELP_STRING([--enable-dri2], [Build DRI2 extension (default: auto)]), [DRI2=$enableval], [DRI2=auto])
+AC_ARG_ENABLE(dri3,           AS_HELP_STRING([--enable-dri3], [Build DRI3 extension (default: auto)]), [DRI3=$enableval], [DRI3=auto])
+AC_ARG_ENABLE(present,	      AS_HELP_STRING([--disable-present], [Build Present extension (default: enabled)]), [PRESENT=$enableval], [PRESENT=yes])
 AC_ARG_ENABLE(xinerama,	      AS_HELP_STRING([--disable-xinerama], [Build Xinerama extension (default: enabled)]), [XINERAMA=$enableval], [XINERAMA=yes])
 AC_ARG_ENABLE(xf86vidmode,    AS_HELP_STRING([--disable-xf86vidmode], [Build XF86VidMode extension (default: auto)]), [XF86VIDMODE=$enableval], [XF86VIDMODE=auto])
 AC_ARG_ENABLE(xace,           AS_HELP_STRING([--disable-xace], [Build X-ACE extension (default: enabled)]), [XACE=$enableval], [XACE=yes])
@@ -635,6 +633,8 @@ AC_ARG_ENABLE(windowswm,      AS_HELP_STRING([--enable-windowswm], [Build XWin w
 AC_ARG_ENABLE(libdrm,         AS_HELP_STRING([--enable-libdrm], [Build Xorg with libdrm support (default: enabled)]), [DRM=$enableval],[DRM=yes])
 AC_ARG_ENABLE(clientids,      AS_HELP_STRING([--disable-clientids], [Build Xorg with client ID tracking (default: enabled)]), [CLIENTIDS=$enableval], [CLIENTIDS=yes])
 AC_ARG_ENABLE(pciaccess, AS_HELP_STRING([--enable-pciaccess], [Build Xorg with pciaccess library (default: enabled)]), [PCI=$enableval], [PCI=yes])
+AC_ARG_ENABLE(linux_acpi, AC_HELP_STRING([--disable-linux-acpi], [Disable building ACPI support on Linux (if available).]), [enable_linux_acpi=$enableval], [enable_linux_acpi=yes])
+AC_ARG_ENABLE(linux_apm, AC_HELP_STRING([--disable-linux-apm], [Disable building APM support on Linux (if available).]), [enable_linux_apm=$enableval], [enable_linux_apm=yes])
 
 dnl DDXes.
 AC_ARG_ENABLE(xorg,    	      AS_HELP_STRING([--enable-xorg], [Build Xorg server (default: auto)]), [XORG=$enableval], [XORG=auto])
@@ -715,6 +715,7 @@ case $host_os in
 		CONFIG_UDEV_KMS=no
 		DGA=no
 		DRI2=no
+		DRI3=no
 		INT10MODULE=no
 		PCI=no
 		VGAHW=no
@@ -732,6 +733,7 @@ case $host_os in
 		VBE=no
 		DRM=no
 		DRI2=no
+		DRI3=no
 
 		if test x$XQUARTZ = xauto; then
 			AC_CACHE_CHECK([whether to build Xquartz],xorg_cv_Carbon_framework,[
@@ -781,6 +783,7 @@ SCRNSAVERPROTO="scrnsaverproto >= 1.1"
 RESOURCEPROTO="resourceproto >= 1.2.0"
 DRIPROTO="xf86driproto >= 2.1.0"
 DRI2PROTO="dri2proto >= 2.8"
+DRI3PROTO="dri3proto >= 1.0"
 XINERAMAPROTO="xineramaproto"
 BIGFONTPROTO="xf86bigfontproto >= 1.2.0"
 DGAPROTO="xf86dgaproto >= 2.0.99.1"
@@ -803,6 +806,7 @@ DAMAGEPROTO="damageproto >= 1.1"
 XCMISCPROTO="xcmiscproto >= 1.2.0"
 BIGREQSPROTO="bigreqsproto >= 1.1.0"
 XTRANS="xtrans >= 1.2.2"
+PRESENTPROTO="presentproto >= 1.0"
 
 dnl List of libraries that require a specific version
 LIBAPPLEWM="applewm >= 1.4"
@@ -1113,7 +1117,22 @@ case "$DRI2,$HAVE_DRI2PROTO" in
 esac
 AM_CONDITIONAL(DRI2, test "x$DRI2" = xyes)
 
-if test "x$DRI" = xyes || test "x$DRI2" = xyes || test "x$CONFIG_UDEV_KMS" = xyes; then
+PKG_CHECK_MODULES([DRI3PROTO], $DRI3PROTO,
+                  [HAVE_DRI3PROTO=yes], [HAVE_DRI3PROTO=no])
+case "$DRI3,$HAVE_DRI3PROTO" in
+	yes,no)
+		AC_MSG_ERROR([DRI3 requested, but dri3proto not found.])
+		;;
+	yes,yes | auto,yes)
+		AC_DEFINE(DRI3, 1, [Build DRI3 extension])
+		DRI3=yes
+		DRI3_LIB='$(top_builddir)/dri3/libdri3.la'
+		SDK_REQUIRED_MODULES="$SDK_REQUIRED_MODULES $DRI3PROTO"
+		;;
+esac
+AM_CONDITIONAL(DRI3, test "x$DRI3" = xyes)
+
+if test "x$DRI" = xyes || test "x$DRI2" = xyes || test "x$DRI3" = xyes || test "x$CONFIG_UDEV_KMS" = xyes; then
 	if test "x$DRM" = xyes; then
 		AC_DEFINE(WITH_LIBDRM, 1, [Building with libdrm support])
 		PKG_CHECK_MODULES([LIBDRM], $LIBDRM)
@@ -1141,6 +1160,14 @@ if test "x$DRI2" = xyes; then
 fi
 AM_CONDITIONAL(DRI2_AIGLX, test "x$DRI2_AIGLX" = xyes)
 
+AM_CONDITIONAL(PRESENT, [test "x$PRESENT" = xyes])
+if test "x$PRESENT" = xyes; then
+	AC_DEFINE(PRESENT, 1, [Support Present extension])
+	REQUIRED_MODULES="$REQUIRED_MODULES $PRESENTPROTO"
+	SDK_REQUIRED_MODULES="$SDK_REQUIRED_MODULES $PRESENTPROTO"
+	PRESENT_INC='-I$(top_srcdir)/present'
+	PRESENT_LIB='$(top_builddir)/present/libpresent.la'
+fi
 
 AM_CONDITIONAL(XINERAMA, [test "x$XINERAMA" = xyes])
 if test "x$XINERAMA" = xyes; then
@@ -1306,6 +1333,7 @@ if test "x$XDMAUTH" = xyes; then
 		XDMCP_MODULES="xdmcp"
 	fi
 fi
+REQUIRED_LIBS="$REQUIRED_LIBS xshmfence"
 
 AC_DEFINE_DIR(COMPILEDDEFAULTFONTPATH, FONTPATH, [Default font path])
 AC_DEFINE_DIR(SERVER_MISC_CONFIG_PATH, SERVERCONFIG, [Server miscellaneous config path])
@@ -1564,7 +1592,7 @@ AC_EGREP_CPP([I_AM_SVR4],[
 AC_DEFINE([SVR4],1,[Define to 1 on systems derived from System V Release 4])
 AC_MSG_RESULT([yes])], AC_MSG_RESULT([no]))
 
-XSERVER_CFLAGS="$XSERVER_CFLAGS $CORE_INCS $XEXT_INC $COMPOSITE_INC $DAMAGE_INC $FIXES_INC $XI_INC $MI_INC $MIEXT_SYNC_INC $MIEXT_SHADOW_INC $MIEXT_LAYER_INC $MIEXT_DAMAGE_INC $RENDER_INC $RANDR_INC $FB_INC $DBE_INC"
+XSERVER_CFLAGS="$XSERVER_CFLAGS $CORE_INCS $XEXT_INC $COMPOSITE_INC $DAMAGE_INC $FIXES_INC $XI_INC $MI_INC $MIEXT_SYNC_INC $MIEXT_SHADOW_INC $MIEXT_LAYER_INC $MIEXT_DAMAGE_INC $RENDER_INC $RANDR_INC $FB_INC $DBE_INC $PRESENT_INC"
 
 dnl ---------------------------------------------------------------------------
 dnl DDX section.
@@ -1577,7 +1605,7 @@ AC_MSG_RESULT([$XVFB])
 AM_CONDITIONAL(XVFB, [test "x$XVFB" = xyes])
 
 if test "x$XVFB" = xyes; then
-	XVFB_LIBS="$FB_LIB $FIXES_LIB $XEXT_LIB $DBE_LIB $RECORD_LIB $GLX_LIBS $RANDR_LIB $RENDER_LIB $DAMAGE_LIB $MIEXT_SYNC_LIB $MIEXT_DAMAGE_LIB $MIEXT_SHADOW_LIB $XI_LIB $XKB_LIB $XKB_STUB_LIB $COMPOSITE_LIB"
+	XVFB_LIBS="$FB_LIB $FIXES_LIB $XEXT_LIB $DBE_LIB $RECORD_LIB $GLX_LIBS $RANDR_LIB $RENDER_LIB $DAMAGE_LIB $DRI3_LIB $PRESENT_LIB $MIEXT_SYNC_LIB $MIEXT_DAMAGE_LIB $MIEXT_SHADOW_LIB $XI_LIB $XKB_LIB $XKB_STUB_LIB $COMPOSITE_LIB"
 	XVFB_SYS_LIBS="$XVFBMODULES_LIBS $GLX_SYS_LIBS"
 	AC_SUBST([XVFB_LIBS])
 	AC_SUBST([XVFB_SYS_LIBS])
@@ -1598,7 +1626,7 @@ if test "x$XNEST" = xyes; then
 	if test "x$have_xnest" = xno; then
 		AC_MSG_ERROR([Xnest build explicitly requested, but required modules not found.])
 	fi
-	XNEST_LIBS="$FB_LIB $FIXES_LIB $MI_LIB $XEXT_LIB $DBE_LIB $RECORD_LIB $GLX_LIBS $RANDR_LIB $RENDER_LIB $DAMAGE_LIB $MIEXT_SYNC_LIB $MIEXT_DAMAGE_LIB $MIEXT_SHADOW_LIB $XI_LIB $XKB_LIB $XKB_STUB_LIB $COMPOSITE_LIB $MAIN_LIB $DIX_LIB $OS_LIB"
+	XNEST_LIBS="$FB_LIB $FIXES_LIB $MI_LIB $XEXT_LIB $DBE_LIB $RECORD_LIB $GLX_LIBS $RANDR_LIB $RENDER_LIB $DAMAGE_LIB  $DRI3_LIB $PRESENT_LIB $MIEXT_SYNC_LIB $MIEXT_DAMAGE_LIB $MIEXT_SHADOW_LIB $XI_LIB $XKB_LIB $XKB_STUB_LIB $COMPOSITE_LIB $MAIN_LIB $DIX_LIB $OS_LIB"
 	XNEST_SYS_LIBS="$XNESTMODULES_LIBS $GLX_SYS_LIBS"
 	AC_SUBST([XNEST_LIBS])
 	AC_SUBST([XNEST_SYS_LIBS])
@@ -1623,7 +1651,7 @@ if test "x$XORG" = xyes; then
 	XORG_OSINCS='-I$(top_srcdir)/hw/xfree86/os-support -I$(top_srcdir)/hw/xfree86/os-support/bus -I$(top_srcdir)/os'
 	XORG_INCS="$XORG_DDXINCS $XORG_OSINCS"
 	XORG_CFLAGS="$XORGSERVER_CFLAGS -DHAVE_XORG_CONFIG_H"
-	XORG_LIBS="$COMPOSITE_LIB $FIXES_LIB $XEXT_LIB $DBE_LIB $RECORD_LIB $RANDR_LIB $RENDER_LIB $DAMAGE_LIB $MIEXT_SYNC_LIB $MIEXT_DAMAGE_LIB $XI_LIB $XKB_LIB"
+	XORG_LIBS="$COMPOSITE_LIB $FIXES_LIB $XEXT_LIB $DBE_LIB $RECORD_LIB $RANDR_LIB $RENDER_LIB $DAMAGE_LIB $DRI3_LIB $PRESENT_LIB $MIEXT_SYNC_LIB $MIEXT_DAMAGE_LIB $XI_LIB $XKB_LIB"
 
 	dnl ==================================================================
 	dnl symbol visibility
@@ -1705,9 +1733,6 @@ if test "x$XORG" = xyes; then
 
 	case $host_os in
 	  linux*)
-		if test "x$LNXAPM" = xyes; then
-			XORG_CFLAGS="$XORG_CFLAGS -DXF86PM"
-		fi
 		XORG_OS_SUBDIR="linux"
 		linux_acpi="no"
 		case $host_cpu in
@@ -1715,11 +1740,16 @@ if test "x$XORG" = xyes; then
 		  	linux_alpha=yes
 			;;
 		  i*86|amd64*|x86_64*|ia64*)
-			linux_acpi="yes"
+			linux_acpi=$enable_linux_acpi
 			;;
 		  *)
 			;;
 		esac
+		dnl APM header
+		AC_CHECK_HEADERS([linux/apm_bios.h], [linux_apm=$enable_linux_apm])
+		if test "x$linux_apm" = xyes -o "x$linux_acpi" = xyes; then
+			AC_DEFINE(XF86PM, 1, [Support APM/ACPI power management in the server])
+		fi
 		;;
 	  freebsd* | kfreebsd*-gnu | dragonfly*)
 		XORG_OS_SUBDIR="bsd"
@@ -1882,6 +1912,7 @@ AM_CONDITIONAL([XORG_BUS_BSDPCI], [test "x$xorg_bus_bsdpci" = xyes])
 AM_CONDITIONAL([XORG_BUS_SPARC], [test "x$xorg_bus_sparc" = xyes])
 AM_CONDITIONAL([LINUX_ALPHA], [test "x$linux_alpha" = xyes])
 AM_CONDITIONAL([LNXACPI], [test "x$linux_acpi" = xyes])
+AM_CONDITIONAL([LNXAPM], [test "x$linux_apm" = xyes])
 AM_CONDITIONAL([SOLARIS_ASM_INLINE], [test "x$solaris_asm_inline" = xyes])
 AM_CONDITIONAL([SOLARIS_VT], [test "x$solaris_vt" = xyes])
 AM_CONDITIONAL([DGA], [test "x$DGA" = xyes])
@@ -2036,7 +2067,7 @@ if test "x$DMX" = xyes; then
 	fi
 	DMX_INCLUDES="$XEXT_INC $RENDER_INC $RECORD_INC"
 	XDMX_CFLAGS="$DMXMODULES_CFLAGS"
-	XDMX_LIBS="$FB_LIB $MI_LIB $XEXT_LIB $RENDER_LIB $RECORD_LIB $XI_LIB $XKB_LIB $XKB_STUB_LIB $MIEXT_SYNC_LIB $MIEXT_SHADOW_LIB $MIEXT_DAMAGE_LIB $COMPOSITE_LIB $DAMAGE_LIB $MAIN_LIB $DIX_LIB $CONFIG_LIB $OS_LIB $FIXES_LIB"
+	XDMX_LIBS="$FB_LIB $MI_LIB $XEXT_LIB $RENDER_LIB $RECORD_LIB $XI_LIB $XKB_LIB $XKB_STUB_LIB  $DRI3_LIB $PRESENT_LIB $MIEXT_SYNC_LIB $MIEXT_SHADOW_LIB $MIEXT_DAMAGE_LIB $COMPOSITE_LIB $DAMAGE_LIB $MAIN_LIB $DIX_LIB $CONFIG_LIB $OS_LIB $FIXES_LIB"
 	XDMX_SYS_LIBS="$DMXMODULES_LIBS"
 	AC_SUBST([XDMX_CFLAGS])
 	AC_SUBST([XDMX_LIBS])
@@ -2145,7 +2176,7 @@ if test "$KDRIVE" = yes; then
     
     KDRIVE_CFLAGS="$XSERVER_CFLAGS -DHAVE_KDRIVE_CONFIG_H $TSLIB_CFLAGS"
 
-    KDRIVE_PURE_LIBS="$FB_LIB $MI_LIB $FIXES_LIB $XEXT_LIB $DBE_LIB $RECORD_LIB $GLX_LIBS $RANDR_LIB $RENDER_LIB $DAMAGE_LIB $MIEXT_SYNC_LIB $MIEXT_DAMAGE_LIB $MIEXT_SHADOW_LIB $XI_LIB $XKB_LIB $XKB_STUB_LIB $COMPOSITE_LIB $OS_LIB"
+    KDRIVE_PURE_LIBS="$FB_LIB $MI_LIB $FIXES_LIB $XEXT_LIB $DBE_LIB $RECORD_LIB $GLX_LIBS $RANDR_LIB $RENDER_LIB $DAMAGE_LIB $DRI3_LIB $PRESENT_LIB $MIEXT_SYNC_LIB $MIEXT_DAMAGE_LIB $MIEXT_SHADOW_LIB $XI_LIB $XKB_LIB $XKB_STUB_LIB $COMPOSITE_LIB $OS_LIB"
     KDRIVE_LIB='$(top_builddir)/hw/kdrive/src/libkdrive.la'
     case $host_os in
 	*linux*)
@@ -2267,6 +2298,8 @@ Xext/Makefile
 Xi/Makefile
 xfixes/Makefile
 exa/Makefile
+dri3/Makefile
+present/Makefile
 hw/Makefile
 hw/xfree86/Makefile
 hw/xfree86/common/Makefile
diff --git a/xorg-server/dix/region.c b/xorg-server/dix/region.c
index 737d2a861..15f3d01a5 100644
--- a/xorg-server/dix/region.c
+++ b/xorg-server/dix/region.c
@@ -255,6 +255,21 @@ RegionDestroy(RegionPtr pReg)
         free(pReg);
 }
 
+RegionPtr
+RegionDuplicate(RegionPtr pOld)
+{
+    RegionPtr   pNew;
+
+    pNew = RegionCreate(&pOld->extents, 0);
+    if (!pNew)
+        return NULL;
+    if (!RegionCopy(pNew, pOld)) {
+        RegionDestroy(pNew);
+        return NULL;
+    }
+    return pNew;
+}
+
 void
 RegionPrint(RegionPtr rgn)
 {
diff --git a/xorg-server/dri3/Makefile.am b/xorg-server/dri3/Makefile.am
new file mode 100644
index 000000000..e47a734e0
--- /dev/null
+++ b/xorg-server/dri3/Makefile.am
@@ -0,0 +1,13 @@
+noinst_LTLIBRARIES = libdri3.la
+AM_CFLAGS = \
+	-DHAVE_XORG_CONFIG_H \
+	@DIX_CFLAGS@ @XORG_CFLAGS@
+
+libdri3_la_SOURCES = \
+	dri3.h \
+	dri3_priv.h \
+	dri3.c \
+	dri3_request.c \
+	dri3_screen.c
+
+sdk_HEADERS = dri3.h
diff --git a/xorg-server/dri3/dri3.c b/xorg-server/dri3/dri3.c
new file mode 100644
index 000000000..2bca7ae9b
--- /dev/null
+++ b/xorg-server/dri3/dri3.c
@@ -0,0 +1,87 @@
+/*
+ * Copyright © 2013 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#include "dri3_priv.h"
+
+int dri3_request;
+DevPrivateKeyRec dri3_screen_private_key;
+DevPrivateKeyRec dri3_window_private_key;
+
+static Bool
+dri3_close_screen(ScreenPtr screen)
+{
+    dri3_screen_priv_ptr screen_priv = dri3_screen_priv(screen);
+
+    unwrap(screen_priv, screen, CloseScreen);
+
+    free(screen_priv);
+    return (*screen->CloseScreen) (screen);
+}
+
+Bool
+dri3_screen_init(ScreenPtr screen, dri3_screen_info_ptr info)
+{
+    if (!dixRegisterPrivateKey(&dri3_screen_private_key, PRIVATE_SCREEN, 0))
+        return FALSE;
+
+    if (!dri3_screen_priv(screen)) {
+        dri3_screen_priv_ptr screen_priv = calloc(1, sizeof (dri3_screen_priv_rec));
+        if (!screen_priv)
+            return FALSE;
+
+        wrap(screen_priv, screen, CloseScreen, dri3_close_screen);
+
+        screen_priv->info = info;
+
+        dixSetPrivate(&screen->devPrivates, &dri3_screen_private_key, screen_priv);
+    }
+
+    return TRUE;
+}
+
+void
+dri3_extension_init(void)
+{
+    ExtensionEntry *extension;
+    int i;
+
+    extension = AddExtension(DRI3_NAME, DRI3NumberEvents, DRI3NumberErrors,
+                             proc_dri3_dispatch, sproc_dri3_dispatch,
+                             NULL, StandardMinorOpcode);
+    if (!extension)
+        goto bail;
+
+    dri3_request = extension->base;
+
+    for (i = 0; i < screenInfo.numScreens; i++) {
+        if (!dri3_screen_init(screenInfo.screens[i], NULL))
+            goto bail;
+    }
+    return;
+
+bail:
+    FatalError("Cannot initialize DRI3 extension");
+}
diff --git a/xorg-server/dri3/dri3.h b/xorg-server/dri3/dri3.h
new file mode 100644
index 000000000..7774c8757
--- /dev/null
+++ b/xorg-server/dri3/dri3.h
@@ -0,0 +1,59 @@
+/*
+ * Copyright © 2013 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#ifndef _DRI3_H_
+#define _DRI3_H_
+
+#include <X11/extensions/dri3proto.h>
+#include <randrstr.h>
+
+#define DRI3_SCREEN_INFO_VERSION        0
+
+typedef int (*dri3_open_proc)(ScreenPtr screen,
+                              RRProviderPtr provider,
+                              int *fd);
+
+typedef PixmapPtr (*dri3_pixmap_from_fd_proc) (ScreenPtr screen,
+                                               int fd,
+                                               CARD16 width,
+                                               CARD16 height,
+                                               CARD16 stride,
+                                               CARD8 depth,
+                                               CARD8 bpp);
+
+typedef int (*dri3_fd_from_pixmap_proc) (ScreenPtr screen,
+                                         PixmapPtr pixmap,
+                                         CARD16 *stride,
+                                         CARD32 *size);
+
+typedef struct dri3_screen_info {
+    uint32_t                    version;
+
+    dri3_open_proc              open;
+    dri3_pixmap_from_fd_proc    pixmap_from_fd;
+    dri3_fd_from_pixmap_proc    fd_from_pixmap;
+} dri3_screen_info_rec, *dri3_screen_info_ptr;
+
+extern _X_EXPORT Bool
+dri3_screen_init(ScreenPtr screen, dri3_screen_info_ptr info);
+
+#endif /* _DRI3_H_ */
diff --git a/xorg-server/dri3/dri3_event.c b/xorg-server/dri3/dri3_event.c
new file mode 100644
index 000000000..02f0f6579
--- /dev/null
+++ b/xorg-server/dri3/dri3_event.c
@@ -0,0 +1,163 @@
+/*
+ * Copyright © 2013 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#include "dri3_priv.h"
+
+RESTYPE dri3_event_type;
+
+static int
+dri3_free_event(pointer data, XID id)
+{
+    dri3_event_ptr dri3_event = (dri3_event_ptr) data;
+    dri3_window_priv_ptr window_priv = dri3_window_priv(dri3_event->window);
+    dri3_event_ptr *previous, current;
+
+    for (previous = &window_priv->events; (current = *previous); previous = &current->next) {
+        if (current == dri3_event) {
+            *previous = dri3_event->next;
+            break;
+        }
+    }
+    free((pointer) dri3_event);
+    return 1;
+
+}
+
+void
+dri3_free_events(WindowPtr window)
+{
+    dri3_window_priv_ptr window_priv = dri3_window_priv(window);
+    dri3_event_ptr event;
+
+    if (!window_priv)
+        return;
+
+    while ((event = window_priv->events))
+        FreeResource(event->id, RT_NONE);
+}
+
+static void
+dri3_event_swap(xGenericEvent *from, xGenericEvent *to)
+{
+    *to = *from;
+    swaps(&to->sequenceNumber);
+    swapl(&to->length);
+    swaps(&to->evtype);
+    switch (from->evtype) {
+    case DRI3_ConfigureNotify: {
+        xDRI3ConfigureNotify *c = (xDRI3ConfigureNotify *) to;
+
+        swapl(&c->eid);
+        swapl(&c->window);
+        swaps(&c->x);
+        swaps(&c->y);
+        swaps(&c->width);
+        swaps(&c->height);
+        swaps(&c->off_x);
+        swaps(&c->off_y);
+        swaps(&c->pixmap_width);
+        swaps(&c->pixmap_height);
+        swapl(&c->pixmap_flags);
+        break;
+    }
+    }
+}
+
+void
+dri3_send_config_notify(WindowPtr window, int x, int y, int w, int h, int bw, WindowPtr sibling)
+{
+    dri3_window_priv_ptr window_priv = dri3_window_priv(window);
+
+    if (window_priv) {
+        xDRI3ConfigureNotify cn = {
+            .type = GenericEvent,
+            .extension = dri3_request,
+            .length = (sizeof(xDRI3ConfigureNotify) - 32) >> 2,
+            .evtype = DRI3_ConfigureNotify,
+            .eid = 0,
+            .window = window->drawable.id,
+            .x = x,
+            .y = y,
+            .width = w,
+            .height = h,
+            .off_x = 0,
+            .off_y = 0,
+            .pixmap_width = w,
+            .pixmap_height = h,
+            .pixmap_flags = 0
+        };
+        dri3_event_ptr event;
+        dri3_screen_priv_ptr screen_priv = dri3_screen_priv(window->drawable.pScreen);
+
+        if (screen_priv->info && screen_priv->info->driver_config)
+            screen_priv->info->driver_config(window, &cn);
+
+        for (event = window_priv->events; event; event = event->next) {
+            if (event->mask & (1 << DRI3ConfigureNotify)) {
+                cn.eid = event->id;
+                WriteEventsToClient(event->client, 1, (xEvent *) &cn);
+            }
+        }
+    }
+}
+
+int
+dri3_select_input(ClientPtr client, XID eid, WindowPtr window, CARD32 mask)
+{
+    dri3_window_priv_ptr window_priv = dri3_window_priv(window);
+    dri3_event_ptr event;
+
+    if (!window_priv)
+        return BadAlloc;
+
+    event = calloc (1, sizeof (dri3_event_rec));
+    if (!event)
+        return BadAlloc;
+
+    event->client = client;
+    event->window = window;
+    event->id = eid;
+    event->mask = mask;
+
+    event->next = window_priv->events;
+    window_priv->events = event;
+
+    if (!AddResource(event->id, dri3_event_type, (pointer) event))
+        return BadAlloc;
+
+    return Success;
+}
+
+Bool
+dri3_event_init(void)
+{
+    dri3_event_type = CreateNewResourceType(dri3_free_event, "DRI3Event");
+    if (!dri3_event_type)
+        return FALSE;
+
+    GERegisterExtension(dri3_request, dri3_event_swap);
+    return TRUE;
+}
diff --git a/xorg-server/dri3/dri3_priv.h b/xorg-server/dri3/dri3_priv.h
new file mode 100644
index 000000000..e2fed839b
--- /dev/null
+++ b/xorg-server/dri3/dri3_priv.h
@@ -0,0 +1,80 @@
+/*
+ * Copyright © 2013 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#ifndef _DRI3PRIV_H_
+#define _DRI3PRIV_H_
+
+#include <X11/X.h>
+#include "scrnintstr.h"
+#include "misc.h"
+#include "list.h"
+#include "windowstr.h"
+#include "dixstruct.h"
+#include <randrstr.h>
+#include "dri3.h"
+
+extern int dri3_request;
+
+extern DevPrivateKeyRec dri3_screen_private_key;
+
+typedef struct dri3_screen_priv {
+    CloseScreenProcPtr          CloseScreen;
+    ConfigNotifyProcPtr         ConfigNotify;
+    DestroyWindowProcPtr        DestroyWindow;
+
+    dri3_screen_info_ptr        info;
+} dri3_screen_priv_rec, *dri3_screen_priv_ptr;
+
+#define wrap(priv,real,mem,func) {\
+    priv->mem = real->mem; \
+    real->mem = func; \
+}
+
+#define unwrap(priv,real,mem) {\
+    real->mem = priv->mem; \
+}
+
+static inline dri3_screen_priv_ptr
+dri3_screen_priv(ScreenPtr screen)
+{
+    return (dri3_screen_priv_ptr)dixLookupPrivate(&(screen)->devPrivates, &dri3_screen_private_key);
+}
+
+int
+proc_dri3_dispatch(ClientPtr client);
+
+int
+sproc_dri3_dispatch(ClientPtr client);
+
+/* DDX interface */
+
+int
+dri3_open(ClientPtr client, ScreenPtr screen, RRProviderPtr provider, int *fd);
+
+int
+dri3_pixmap_from_fd(PixmapPtr *ppixmap, ScreenPtr screen, int fd,
+                    CARD16 width, CARD16 height, CARD16 stride, CARD8 depth, CARD8 bpp);
+
+int
+dri3_fd_from_pixmap(int *pfd, PixmapPtr pixmap, CARD16 *stride, CARD32 *size);
+
+#endif /* _DRI3PRIV_H_ */
diff --git a/xorg-server/dri3/dri3_request.c b/xorg-server/dri3/dri3_request.c
new file mode 100644
index 000000000..3ebb9d509
--- /dev/null
+++ b/xorg-server/dri3/dri3_request.c
@@ -0,0 +1,394 @@
+/*
+ * Copyright © 2013 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#include "dri3_priv.h"
+#include <syncsrv.h>
+#include <unistd.h>
+#include <xace.h>
+#include "../Xext/syncsdk.h"
+
+static int
+proc_dri3_query_version(ClientPtr client)
+{
+    REQUEST(xDRI3QueryVersionReq);
+    xDRI3QueryVersionReply rep = {
+        .type = X_Reply,
+        .sequenceNumber = client->sequence,
+        .length = 0,
+        .majorVersion = DRI3_MAJOR,
+        .minorVersion = DRI3_MINOR
+    };
+
+    REQUEST_SIZE_MATCH(xDRI3QueryVersionReq);
+    (void) stuff;
+    if (client->swapped) {
+        swaps(&rep.sequenceNumber);
+        swapl(&rep.length);
+        swapl(&rep.majorVersion);
+        swapl(&rep.minorVersion);
+    }
+    WriteToClient(client, sizeof(rep), &rep);
+    return Success;
+}
+
+static int
+proc_dri3_open(ClientPtr client)
+{
+    REQUEST(xDRI3OpenReq);
+    xDRI3OpenReply rep = {
+        .type = X_Reply,
+        .nfd = 1,
+        .sequenceNumber = client->sequence,
+        .length = 0,
+    };
+    RRProviderPtr provider;
+    DrawablePtr drawable;
+    ScreenPtr screen;
+    int fd;
+    int status;
+
+    REQUEST_SIZE_MATCH(xDRI3OpenReq);
+
+    status = dixLookupDrawable(&drawable, stuff->drawable, client, 0, DixReadAccess);
+    if (status != Success)
+        return status;
+
+    if (stuff->provider == None)
+        provider = NULL;
+    else if (!RRProviderType) {
+        return BadMatch;
+    } else {
+        VERIFY_RR_PROVIDER(stuff->provider, provider, DixReadAccess);
+        if (drawable->pScreen != provider->pScreen)
+            return BadMatch;
+    }
+    screen = drawable->pScreen;
+
+    status = dri3_open(client, screen, provider, &fd);
+    if (status != Success)
+        return status;
+
+    if (client->swapped) {
+        swaps(&rep.sequenceNumber);
+        swapl(&rep.length);
+    }
+
+    if (WriteFdToClient(client, fd, TRUE) < 0) {
+        close(fd);
+        return BadAlloc;
+    }
+
+    WriteToClient(client, sizeof (rep), &rep);
+
+    return Success;
+}
+
+static int
+proc_dri3_pixmap_from_buffer(ClientPtr client)
+{
+    REQUEST(xDRI3PixmapFromBufferReq);
+    int fd;
+    DrawablePtr drawable;
+    PixmapPtr pixmap;
+    int rc;
+
+    SetReqFds(client, 1);
+    REQUEST_SIZE_MATCH(xDRI3PixmapFromBufferReq);
+    LEGAL_NEW_RESOURCE(stuff->pixmap, client);
+    rc = dixLookupDrawable(&drawable, stuff->drawable, client, M_ANY, DixGetAttrAccess);
+    if (rc != Success) {
+        client->errorValue = stuff->drawable;
+        return rc;
+    }
+
+    if (!stuff->width || !stuff->height) {
+        client->errorValue = 0;
+        return BadValue;
+    }
+
+    if (stuff->width > 32767 || stuff->height > 32767)
+        return BadAlloc;
+
+    if (stuff->depth != 1) {
+        DepthPtr depth = drawable->pScreen->allowedDepths;
+        int i;
+        for (i = 0; i < drawable->pScreen->numDepths; i++, depth++)
+            if (depth->depth == stuff->depth)
+                break;
+        if (i == drawable->pScreen->numDepths) {
+            client->errorValue = stuff->depth;
+            return BadValue;
+        }
+    }
+
+    fd = ReadFdFromClient(client);
+    if (fd < 0)
+        return BadValue;
+
+    rc = dri3_pixmap_from_fd(&pixmap,
+                             drawable->pScreen, fd,
+                             stuff->width, stuff->height,
+                             stuff->stride, stuff->depth,
+                             stuff->bpp);
+    close (fd);
+    if (rc != Success)
+        return rc;
+
+    pixmap->drawable.id = stuff->pixmap;
+
+    /* security creation/labeling check */
+    rc = XaceHook(XACE_RESOURCE_ACCESS, client, stuff->pixmap, RT_PIXMAP,
+                  pixmap, RT_NONE, NULL, DixCreateAccess);
+
+    if (rc != Success) {
+        (*drawable->pScreen->DestroyPixmap) (pixmap);
+        return rc;
+    }
+    if (AddResource(stuff->pixmap, RT_PIXMAP, (pointer) pixmap))
+        return Success;
+
+    return Success;
+}
+
+static int
+proc_dri3_buffer_from_pixmap(ClientPtr client)
+{
+    REQUEST(xDRI3BufferFromPixmapReq);
+    xDRI3BufferFromPixmapReply rep = {
+        .type = X_Reply,
+        .nfd = 1,
+        .sequenceNumber = client->sequence,
+        .length = 0,
+    };
+    int rc;
+    int fd;
+    PixmapPtr pixmap;
+
+    REQUEST_SIZE_MATCH(xDRI3BufferFromPixmapReq);
+    rc = dixLookupResourceByType((pointer *) &pixmap, stuff->pixmap, RT_PIXMAP,
+                                 client, DixWriteAccess);
+    if (rc != Success) {
+        client->errorValue = stuff->pixmap;
+        return rc;
+    }
+
+    rep.width = pixmap->drawable.width;
+    rep.height = pixmap->drawable.height;
+    rep.depth = pixmap->drawable.depth;
+    rep.bpp = pixmap->drawable.bitsPerPixel;
+
+    rc = dri3_fd_from_pixmap(&fd, pixmap, &rep.stride, &rep.size);
+    if (rc != Success)
+        return rc;
+
+    if (client->swapped) {
+        swaps(&rep.sequenceNumber);
+        swapl(&rep.length);
+        swapl(&rep.size);
+        swaps(&rep.width);
+        swaps(&rep.height);
+        swaps(&rep.stride);
+    }
+    if (WriteFdToClient(client, fd, TRUE) < 0) {
+        close(fd);
+        return BadAlloc;
+    }
+
+    WriteToClient(client, sizeof(rep), &rep);
+
+    return client->noClientException;
+}
+
+static int
+proc_dri3_fence_from_fd(ClientPtr client)
+{
+    REQUEST(xDRI3FenceFromFDReq);
+    DrawablePtr drawable;
+    int fd;
+    int status;
+
+    SetReqFds(client, 1);
+    REQUEST_SIZE_MATCH(xDRI3FenceFromFDReq);
+    LEGAL_NEW_RESOURCE(stuff->fence, client);
+
+    status = dixLookupDrawable(&drawable, stuff->drawable, client, M_ANY, DixGetAttrAccess);
+    if (status != Success)
+        return status;
+
+    fd = ReadFdFromClient(client);
+    if (fd < 0)
+        return BadValue;
+
+    status = SyncCreateFenceFromFD(client, drawable, stuff->fence,
+                                   fd, stuff->initially_triggered);
+
+    return status;
+}
+
+static int
+proc_dri3_fd_from_fence(ClientPtr client)
+{
+    REQUEST(xDRI3FDFromFenceReq);
+    xDRI3FDFromFenceReply rep = {
+        .type = X_Reply,
+        .nfd = 1,
+        .sequenceNumber = client->sequence,
+        .length = 0,
+    };
+    DrawablePtr drawable;
+    int fd;
+    int status;
+    SyncFence *fence;
+
+    REQUEST_SIZE_MATCH(xDRI3FDFromFenceReq);
+
+    status = dixLookupDrawable(&drawable, stuff->drawable, client, M_ANY, DixGetAttrAccess);
+    if (status != Success)
+        return status;
+    status = SyncVerifyFence(&fence, stuff->fence, client, DixWriteAccess);
+    if (status != Success)
+        return status;
+
+    fd = SyncFDFromFence(client, drawable, fence);
+    if (fd < 0)
+        return BadMatch;
+
+    if (client->swapped) {
+        swaps(&rep.sequenceNumber);
+        swapl(&rep.length);
+    }
+    if (WriteFdToClient(client, fd, FALSE) < 0)
+        return BadAlloc;
+
+    WriteToClient(client, sizeof(rep), &rep);
+
+    return client->noClientException;
+}
+
+int (*proc_dri3_vector[DRI3NumberRequests]) (ClientPtr) = {
+    proc_dri3_query_version,            /* 0 */
+    proc_dri3_open,                     /* 1 */
+    proc_dri3_pixmap_from_buffer,       /* 2 */
+    proc_dri3_buffer_from_pixmap,       /* 3 */
+    proc_dri3_fence_from_fd,            /* 4 */
+    proc_dri3_fd_from_fence,            /* 5 */
+};
+
+int
+proc_dri3_dispatch(ClientPtr client)
+{
+    REQUEST(xReq);
+    if (stuff->data >= DRI3NumberRequests || !proc_dri3_vector[stuff->data])
+        return BadRequest;
+    return (*proc_dri3_vector[stuff->data]) (client);
+}
+
+static int
+sproc_dri3_query_version(ClientPtr client)
+{
+    REQUEST(xDRI3QueryVersionReq);
+
+    swaps(&stuff->length);
+    swapl(&stuff->majorVersion);
+    swapl(&stuff->minorVersion);
+    return (*proc_dri3_vector[stuff->dri3ReqType]) (client);
+}
+
+static int
+sproc_dri3_open(ClientPtr client)
+{
+    REQUEST(xDRI3OpenReq);
+
+    swaps(&stuff->length);
+    swapl(&stuff->drawable);
+    swapl(&stuff->provider);
+    return (*proc_dri3_vector[stuff->dri3ReqType]) (client);
+}
+
+static int
+sproc_dri3_pixmap_from_buffer(ClientPtr client)
+{
+    REQUEST(xDRI3PixmapFromBufferReq);
+
+    swaps(&stuff->length);
+    swapl(&stuff->pixmap);
+    swapl(&stuff->drawable);
+    swapl(&stuff->size);
+    swaps(&stuff->width);
+    swaps(&stuff->height);
+    swaps(&stuff->stride);
+    return (*proc_dri3_vector[stuff->dri3ReqType]) (client);
+}
+
+static int
+sproc_dri3_buffer_from_pixmap(ClientPtr client)
+{
+    REQUEST(xDRI3BufferFromPixmapReq);
+
+    swaps(&stuff->length);
+    swapl(&stuff->pixmap);
+    return (*proc_dri3_vector[stuff->dri3ReqType]) (client);
+}
+
+static int
+sproc_dri3_fence_from_fd(ClientPtr client)
+{
+    REQUEST(xDRI3FenceFromFDReq);
+
+    swaps(&stuff->length);
+    swapl(&stuff->drawable);
+    swapl(&stuff->fence);
+    return (*proc_dri3_vector[stuff->dri3ReqType]) (client);
+}
+
+static int
+sproc_dri3_fd_from_fence(ClientPtr client)
+{
+    REQUEST(xDRI3FDFromFenceReq);
+
+    swaps(&stuff->length);
+    swapl(&stuff->drawable);
+    swapl(&stuff->fence);
+    return (*proc_dri3_vector[stuff->dri3ReqType]) (client);
+}
+
+int (*sproc_dri3_vector[DRI3NumberRequests]) (ClientPtr) = {
+    sproc_dri3_query_version,           /* 0 */
+    sproc_dri3_open,                    /* 1 */
+    sproc_dri3_pixmap_from_buffer,      /* 2 */
+    sproc_dri3_buffer_from_pixmap,      /* 3 */
+    sproc_dri3_fence_from_fd,           /* 4 */
+    sproc_dri3_fd_from_fence,           /* 5 */
+};
+
+int
+sproc_dri3_dispatch(ClientPtr client)
+{
+    REQUEST(xReq);
+    if (stuff->data >= DRI3NumberRequests || !sproc_dri3_vector[stuff->data])
+        return BadRequest;
+    return (*sproc_dri3_vector[stuff->data]) (client);
+}
diff --git a/xorg-server/dri3/dri3_screen.c b/xorg-server/dri3/dri3_screen.c
new file mode 100644
index 000000000..cf2735b8d
--- /dev/null
+++ b/xorg-server/dri3/dri3_screen.c
@@ -0,0 +1,80 @@
+/*
+ * Copyright © 2013 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#include "dri3_priv.h"
+#include <syncsdk.h>
+#include <misync.h>
+#include <misyncshm.h>
+#include <randrstr.h>
+
+int
+dri3_open(ClientPtr client, ScreenPtr screen, RRProviderPtr provider, int *fd)
+{
+    dri3_screen_priv_ptr        ds = dri3_screen_priv(screen);
+    dri3_screen_info_ptr        info = ds->info;
+    int                         rc;
+
+    if (!info || !info->open)
+        return BadMatch;
+
+    rc = (*info->open) (screen, provider, fd);
+    if (rc != Success)
+        return rc;
+
+    return Success;
+}
+
+int
+dri3_pixmap_from_fd(PixmapPtr *ppixmap, ScreenPtr screen, int fd,
+                    CARD16 width, CARD16 height, CARD16 stride, CARD8 depth, CARD8 bpp)
+{
+    dri3_screen_priv_ptr        ds = dri3_screen_priv(screen);
+    dri3_screen_info_ptr        info = ds->info;
+    PixmapPtr                   pixmap;
+
+    pixmap = (*info->pixmap_from_fd) (screen, fd, width, height, stride, depth, bpp);
+    if (!pixmap)
+        return BadAlloc;
+
+    *ppixmap = pixmap;
+    return Success;
+}
+
+int
+dri3_fd_from_pixmap(int *pfd, PixmapPtr pixmap, CARD16 *stride, CARD32 *size)
+{
+    ScreenPtr                   screen = pixmap->drawable.pScreen;
+    dri3_screen_priv_ptr        ds = dri3_screen_priv(screen);
+    dri3_screen_info_ptr        info = ds->info;
+    int                         fd;
+
+    fd = (*info->fd_from_pixmap)(screen, pixmap, stride, size);
+    if (fd < 0)
+        return BadAlloc;
+    *pfd = fd;
+    return Success;
+}
+
diff --git a/xorg-server/dri3/dri3int.h b/xorg-server/dri3/dri3int.h
new file mode 100644
index 000000000..7f53eba45
--- /dev/null
+++ b/xorg-server/dri3/dri3int.h
@@ -0,0 +1,26 @@
+/*
+ * Copyright © 2011 Daniel Stone
+ *
+ * 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
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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.
+ *
+ * Author: Daniel Stone <daniel@fooishbar.org>
+ */
+
+extern Bool DRI2ModuleSetup(void);
diff --git a/xorg-server/glx/glxcmds.c b/xorg-server/glx/glxcmds.c
index 01226af92..fc2bb35bd 100644
--- a/xorg-server/glx/glxcmds.c
+++ b/xorg-server/glx/glxcmds.c
@@ -1121,7 +1121,8 @@ DoGetFBConfigs(__GLXclientState * cl, unsigned screen)
         WRITE_PAIR(GLX_BIND_TO_MIPMAP_TEXTURE_EXT, modes->bindToMipmapTexture);
         WRITE_PAIR(GLX_BIND_TO_TEXTURE_TARGETS_EXT,
                    modes->bindToTextureTargets);
-	WRITE_PAIR(GLX_Y_INVERTED_EXT, modes->yInverted);
+	/* can't report honestly until mesa is fixed */
+	WRITE_PAIR(GLX_Y_INVERTED_EXT, GLX_DONT_CARE);
 	if (modes->drawableType & GLX_PBUFFER_BIT) {
 	    WRITE_PAIR(GLX_MAX_PBUFFER_WIDTH, modes->maxPbufferWidth);
 	    WRITE_PAIR(GLX_MAX_PBUFFER_HEIGHT, modes->maxPbufferHeight);
diff --git a/xorg-server/glx/glxdricommon.c b/xorg-server/glx/glxdricommon.c
index 15ce1eee2..426ea6acc 100644
--- a/xorg-server/glx/glxdricommon.c
+++ b/xorg-server/glx/glxdricommon.c
@@ -191,6 +191,7 @@ createModeFromConfig(const __DRIcoreExtension * core,
     config->config.visualType = visualType;
     config->config.renderType = renderType;
     config->config.drawableType = drawableType;
+    config->config.yInverted = GL_TRUE;
 
     return &config->config;
 }
diff --git a/xorg-server/hw/dmx/dmxextension.c b/xorg-server/hw/dmx/dmxextension.c
index d7296ae2d..c6c6a8e6d 100644
--- a/xorg-server/hw/dmx/dmxextension.c
+++ b/xorg-server/hw/dmx/dmxextension.c
@@ -68,6 +68,9 @@
  * _any_ header files. */
 extern FontPtr defaultFont;
 
+/* Hack to get Present to build (present requires RandR) */
+RESTYPE RRCrtcType;
+
 /** This routine provides information to the DMX protocol extension
  * about a particular screen. */
 Bool
diff --git a/xorg-server/hw/dmx/dmxinit.c b/xorg-server/hw/dmx/dmxinit.c
index 0cc56ebe2..c1e97e0cf 100644
--- a/xorg-server/hw/dmx/dmxinit.c
+++ b/xorg-server/hw/dmx/dmxinit.c
@@ -109,6 +109,8 @@ Bool dmxGLXSyncSwap = FALSE;
 Bool dmxGLXFinishSwap = FALSE;
 #endif
 
+RESTYPE RRProviderType = 0;
+
 Bool dmxIgnoreBadFontPaths = FALSE;
 
 Bool dmxAddRemoveScreens = FALSE;
diff --git a/xorg-server/hw/kdrive/ephyr/hostx.c b/xorg-server/hw/kdrive/ephyr/hostx.c
index 97c7168a0..510dd2456 100755
--- a/xorg-server/hw/kdrive/ephyr/hostx.c
+++ b/xorg-server/hw/kdrive/ephyr/hostx.c
@@ -713,9 +713,6 @@ __asm int 3;
             malloc(scrpriv->ximg->stride * buffer_height);
     }
 
-    *bytes_per_line = scrpriv->ximg->stride;
-    *bits_per_pixel = scrpriv->ximg->bpp;
-
     if (scrpriv->win_pre_existing == None && !EphyrWantResize) {
         /* Ask the WM to keep our size static */
         xcb_size_hints_t size_hints = {0};
@@ -735,13 +732,21 @@ __asm int 3;
     scrpriv->win_height = height;
 
     if (host_depth_matches_server(scrpriv)) {
+        *bytes_per_line = scrpriv->ximg->stride;
+        *bits_per_pixel = scrpriv->ximg->bpp;
+
         EPHYR_DBG("Host matches server");
         return scrpriv->ximg->data;
     }
     else {
-        EPHYR_DBG("server bpp %i", scrpriv->server_depth >> 3);
-        scrpriv->fb_data =
-            malloc(width * buffer_height * (scrpriv->server_depth >> 3));
+        int bytes_per_pixel = scrpriv->server_depth >> 3;
+        int stride = (width * bytes_per_pixel + 0x3) & ~0x3;
+
+        *bytes_per_line = stride;
+        *bits_per_pixel = scrpriv->server_depth;
+
+        EPHYR_DBG("server bpp %i", bytes_per_pixel);
+        scrpriv->fb_data = malloc (stride * buffer_height);
         return scrpriv->fb_data;
     }
 }
@@ -780,15 +785,14 @@ hostx_paint_rect(KdScreenInfo *screen,
 
     if (!host_depth_matches_server(scrpriv)) {
         int x, y, idx, bytes_per_pixel = (scrpriv->server_depth >> 3);
+        int stride = (scrpriv->win_width * bytes_per_pixel + 0x3) & ~0x3;
         unsigned char r, g, b;
         unsigned long host_pixel;
 
         EPHYR_DBG("Unmatched host depth scrpriv=%p\n", scrpriv);
         for (y = sy; y < sy + height; y++)
             for (x = sx; x < sx + width; x++) {
-                idx =
-                    (scrpriv->win_width * y * bytes_per_pixel) +
-                    (x * bytes_per_pixel);
+                idx = y * stride + x * bytes_per_pixel;
 
                 switch (scrpriv->server_depth) {
                 case 16:
diff --git a/xorg-server/hw/xfree86/Makefile.am b/xorg-server/hw/xfree86/Makefile.am
index 59cfb5f6f..eea16a851 100644
--- a/xorg-server/hw/xfree86/Makefile.am
+++ b/xorg-server/hw/xfree86/Makefile.am
@@ -41,7 +41,7 @@ nodist_Xorg_SOURCES = sdksyms.c
 AM_CFLAGS = $(DIX_CFLAGS) @XORG_CFLAGS@
 AM_CPPFLAGS = $(XORG_INCS) -I$(srcdir)/parser -I$(top_srcdir)/miext/cw \
 	-I$(srcdir)/ddc -I$(srcdir)/i2c -I$(srcdir)/modes -I$(srcdir)/ramdac \
-	-I$(srcdir)/dri -I$(srcdir)/dri2
+	-I$(srcdir)/dri -I$(srcdir)/dri2 -I$(top_srcdir)/dri3
 
 LOCAL_LIBS = \
             $(MAIN_LIB) \
@@ -59,6 +59,8 @@ LOCAL_LIBS = \
             dixmods/libxorgxkb.la \
             $(DRI_LIB) \
             $(DRI2_LIB) \
+	    $(top_builddir)/dri3/libdri3.la \
+	    $(top_builddir)/miext/sync/libsync.la \
             $(top_builddir)/mi/libmi.la \
             $(top_builddir)/os/libos.la
 Xorg_LDADD = \
diff --git a/xorg-server/hw/xfree86/common/xf86Configure.c b/xorg-server/hw/xfree86/common/xf86Configure.c
index 6c5e35919..91e8df93d 100644
--- a/xorg-server/hw/xfree86/common/xf86Configure.c
+++ b/xorg-server/hw/xfree86/common/xf86Configure.c
@@ -123,12 +123,14 @@ xf86AddBusDeviceToConfigure(const char *driver, BusType bus, void *busData,
     switch (bus) {
 #ifdef XSERVER_LIBPCIACCESS
     case BUS_PCI:
+	DevToConfig[i].pVideo = busData;
         xf86PciConfigureNewDev(busData, DevToConfig[i].pVideo,
                                &DevToConfig[i].GDev, &chipset);
         break;
 #endif
 #if (defined(__sparc__) || defined(__sparc)) && !defined(__OpenBSD__)
     case BUS_SBUS:
+	DevToConfig[i].sVideo = busData;
         xf86SbusConfigureNewDev(busData, DevToConfig[i].sVideo,
                                 &DevToConfig[i].GDev);
         break;
diff --git a/xorg-server/hw/xfree86/common/xf86DPMS.c b/xorg-server/hw/xfree86/common/xf86DPMS.c
index 3f1e142c7..881cb2773 100644
--- a/xorg-server/hw/xfree86/common/xf86DPMS.c
+++ b/xorg-server/hw/xfree86/common/xf86DPMS.c
@@ -36,6 +36,7 @@
 #include <X11/X.h>
 #include "os.h"
 #include "globals.h"
+#include "windowstr.h"
 #include "xf86.h"
 #include "xf86Priv.h"
 #ifdef DPMSExtension
@@ -159,7 +160,13 @@ DPMSSet(ClientPtr client, int level)
         return Success;
 
     if (level != DPMSModeOn) {
-        rc = dixSaveScreens(client, SCREEN_SAVER_FORCER, ScreenSaverActive);
+        if (xf86IsUnblank(screenIsSaved)) {
+            rc = dixSaveScreens(client, SCREEN_SAVER_FORCER, ScreenSaverActive);
+            if (rc != Success)
+                return rc;
+        }
+    } else if (!xf86IsUnblank(screenIsSaved)) {
+        rc = dixSaveScreens(client, SCREEN_SAVER_FORCER, ScreenSaverReset);
         if (rc != Success)
             return rc;
     }
diff --git a/xorg-server/hw/xfree86/common/xf86Events.c b/xorg-server/hw/xfree86/common/xf86Events.c
index 7a949fd74..d0b14314b 100644
--- a/xorg-server/hw/xfree86/common/xf86Events.c
+++ b/xorg-server/hw/xfree86/common/xf86Events.c
@@ -116,6 +116,7 @@ typedef struct x_IHRec {
     InputHandlerProc ihproc;
     pointer data;
     Bool enabled;
+    Bool is_input;
     struct x_IHRec *next;
 } IHRec, *IHPtr;
 
@@ -446,8 +447,12 @@ xf86VTSwitch(void)
          * Keep the order: Disable Device > LeaveVT
          *                        EnterVT > EnableDevice
          */
-        for (ih = InputHandlers; ih; ih = ih->next)
-            xf86DisableInputHandler(ih);
+        for (ih = InputHandlers; ih; ih = ih->next) {
+            if (ih->is_input)
+                xf86DisableInputHandler(ih);
+            else
+                xf86DisableGeneralHandler(ih);
+        }
         for (pInfo = xf86InputDevs; pInfo; pInfo = pInfo->next) {
             if (pInfo->dev) {
                 if (!pInfo->dev->enabled)
@@ -496,9 +501,12 @@ xf86VTSwitch(void)
                 pInfo->flags &= ~XI86_DEVICE_DISABLED;
                 pInfo = pInfo->next;
             }
-            for (ih = InputHandlers; ih; ih = ih->next)
-                xf86EnableInputHandler(ih);
-
+            for (ih = InputHandlers; ih; ih = ih->next) {
+                if (ih->is_input)
+                    xf86EnableInputHandler(ih);
+                else
+                    xf86EnableGeneralHandler(ih);
+            }
             OsReleaseSIGIO();
 
         }
@@ -558,9 +566,12 @@ xf86VTSwitch(void)
             pInfo = pInfo->next;
         }
 
-        for (ih = InputHandlers; ih; ih = ih->next)
-            xf86EnableInputHandler(ih);
-
+        for (ih = InputHandlers; ih; ih = ih->next) {
+            if (ih->is_input)
+                xf86EnableInputHandler(ih);
+            else
+                xf86EnableGeneralHandler(ih);
+        }
 #ifdef XSERVER_PLATFORM_BUS
         /* check for any new output devices */
         xf86platformVTProbe();
@@ -600,8 +611,10 @@ xf86AddInputHandler(int fd, InputHandlerProc proc, pointer data)
 {
     IHPtr ih = addInputHandler(fd, proc, data);
 
-    if (ih)
+    if (ih) {
         AddEnabledDevice(fd);
+        ih->is_input = TRUE;
+    }
     return ih;
 }
 
diff --git a/xorg-server/hw/xfree86/common/xf86RandR.c b/xorg-server/hw/xfree86/common/xf86RandR.c
index 5606bee4b..2418731dc 100644
--- a/xorg-server/hw/xfree86/common/xf86RandR.c
+++ b/xorg-server/hw/xfree86/common/xf86RandR.c
@@ -214,13 +214,15 @@ xf86RandRSetMode(ScreenPtr pScreen,
      */
     xf86ReconfigureLayout();
 
-    /*
-     * Make sure the whole screen is visible
-     */
-    xf86SetViewport(pScreen, pScreen->width, pScreen->height);
-    xf86SetViewport(pScreen, 0, 0);
-    if (pRoot && scrp->vtSema)
-        (*scrp->EnableDisableFBAccess) (scrp, TRUE);
+    if (scrp->vtSema) {
+        /*
+         * Make sure the whole screen is visible
+         */
+        xf86SetViewport (pScreen, pScreen->width, pScreen->height);
+        xf86SetViewport (pScreen, 0, 0);
+        if (pRoot)
+            (*scrp->EnableDisableFBAccess) (scrp, TRUE);
+    }
     return ret;
 }
 
diff --git a/xorg-server/hw/xfree86/modes/xf86Crtc.c b/xorg-server/hw/xfree86/modes/xf86Crtc.c
index 35845e875..2a02c8507 100644
--- a/xorg-server/hw/xfree86/modes/xf86Crtc.c
+++ b/xorg-server/hw/xfree86/modes/xf86Crtc.c
@@ -3045,10 +3045,22 @@ handle_detailed_physical_size(struct detailed_monitor_section
     if (det_mon->type == DT &&
         det_mon->section.d_timings.h_size != 0 &&
         det_mon->section.d_timings.v_size != 0) {
-
-        p->output->mm_width = det_mon->section.d_timings.h_size;
-        p->output->mm_height = det_mon->section.d_timings.v_size;
-        p->ret = TRUE;
+        /* some sanity checking for aspect ratio:
+           assume any h / v (or v / h) > 2.4 to be bogus.
+           This would even include cinemascope */
+        if (((det_mon->section.d_timings.h_size * 5) <
+             (det_mon->section.d_timings.v_size * 12)) &&
+            ((det_mon->section.d_timings.v_size * 5) <
+             (det_mon->section.d_timings.h_size * 12))) {
+            p->output->mm_width = det_mon->section.d_timings.h_size;
+            p->output->mm_height = det_mon->section.d_timings.v_size;
+            p->ret = TRUE;
+        } else
+            xf86DrvMsg(p->output->scrn->scrnIndex, X_WARNING,
+                       "Output %s: Strange aspect ratio (%i/%i), "
+                       "consider adding a quirk\n", p->output->name,
+                       det_mon->section.d_timings.h_size,
+                       det_mon->section.d_timings.v_size);
     }
 }
 
diff --git a/xorg-server/hw/xfree86/sdksyms.sh b/xorg-server/hw/xfree86/sdksyms.sh
index 48b48b5db..7c9734c07 100644
--- a/xorg-server/hw/xfree86/sdksyms.sh
+++ b/xorg-server/hw/xfree86/sdksyms.sh
@@ -99,6 +99,7 @@ cat > sdksyms.c << EOF
 # include "dri2.h"
 #endif
 
+# include "dri3.h"
 
 /* hw/xfree86/vgahw/Makefile.am -- module */
 /*
diff --git a/xorg-server/hw/xquartz/bundle/Info.plist.cpp b/xorg-server/hw/xquartz/bundle/Info.plist.cpp
index b0106c6da..b99e417aa 100644
--- a/xorg-server/hw/xquartz/bundle/Info.plist.cpp
+++ b/xorg-server/hw/xquartz/bundle/Info.plist.cpp
@@ -19,9 +19,9 @@
 	<key>CFBundlePackageType</key>
 		<string>APPL</string>
 	<key>CFBundleShortVersionString</key>
-		<string>2.7.4</string>
+		<string>2.7.6</string>
 	<key>CFBundleVersion</key>
-		<string>2.7.4</string>
+		<string>2.7.6</string>
 	<key>CFBundleSignature</key>
 		<string>x11a</string>
 	<key>CSResourcesFileMapped</key>
diff --git a/xorg-server/include/dix-config.h.in b/xorg-server/include/dix-config.h.in
index a643dfcc8..397ee967a 100644
--- a/xorg-server/include/dix-config.h.in
+++ b/xorg-server/include/dix-config.h.in
@@ -39,6 +39,9 @@
 /* Build DPMS extension */
 #undef DPMSExtension
 
+/* Build DRI3 extension */
+#undef DRI3
+
 /* Build GLX extension */
 #undef GLXEXT
 
@@ -252,6 +255,9 @@
 /* Internal define for Xinerama */
 #undef PANORAMIX
 
+/* Support Present extension */
+#undef PRESENT
+
 /* Overall prefix */
 #undef PROJECTROOT
 
diff --git a/xorg-server/include/dixstruct.h b/xorg-server/include/dixstruct.h
index 7065b0456..92d2b3882 100644
--- a/xorg-server/include/dixstruct.h
+++ b/xorg-server/include/dixstruct.h
@@ -110,8 +110,16 @@ typedef struct _Client {
 
     DeviceIntPtr clientPtr;
     ClientIdPtr clientIds;
+    int req_fds;
 } ClientRec;
 
+static inline void
+SetReqFds(ClientPtr client, int req_fds) {
+    if (client->req_fds != 0 && req_fds != client->req_fds)
+        LogMessage(X_ERROR, "Mismatching number of request fds %d != %d\n", req_fds, client->req_fds);
+    client->req_fds = req_fds;
+}
+
 /*
  * Scheduling interface
  */
diff --git a/xorg-server/include/extinit.h b/xorg-server/include/extinit.h
index 6d67bf2e5..fa5f29378 100644
--- a/xorg-server/include/extinit.h
+++ b/xorg-server/include/extinit.h
@@ -176,4 +176,14 @@ extern void XvExtensionInit(void);
 extern void XvMCExtensionInit(void);
 #endif
 
+#if defined(DRI3)
+#include <X11/extensions/dri3proto.h>
+extern void dri3_extension_init(void);
+#endif
+
+#if defined(PRESENT)
+#include <X11/extensions/presentproto.h>
+#include "presentext.h"
+#endif
+
 #endif
diff --git a/xorg-server/include/misc.h b/xorg-server/include/misc.h
index 664e02cae..19e71035c 100644
--- a/xorg-server/include/misc.h
+++ b/xorg-server/include/misc.h
@@ -315,6 +315,35 @@ __builtin_constant_p(int x)
 }
 #endif
 
+/* byte swap a 64-bit value */
+static inline void
+swap_uint64(uint64_t *x)
+{
+    char n;
+
+    n = ((char *) x)[0];
+    ((char *) x)[0] = ((char *) x)[7];
+    ((char *) x)[7] = n;
+
+    n = ((char *) x)[1];
+    ((char *) x)[1] = ((char *) x)[6];
+    ((char *) x)[6] = n;
+
+    n = ((char *) x)[2];
+    ((char *) x)[2] = ((char *) x)[5];
+    ((char *) x)[5] = n;
+
+    n = ((char *) x)[3];
+    ((char *) x)[3] = ((char *) x)[4];
+    ((char *) x)[4] = n;
+}
+
+#define swapll(x) do { \
+		if (sizeof(*(x)) != 8) \
+			wrong_size(); \
+                swap_uint64((uint64_t *)(x));   \
+	} while (0)
+
 /* byte swap a 32-bit value */
 static inline void
 swap_uint32(uint32_t * x)
diff --git a/xorg-server/include/os.h b/xorg-server/include/os.h
index 68f405714..a04b4e47d 100644
--- a/xorg-server/include/os.h
+++ b/xorg-server/include/os.h
@@ -98,6 +98,10 @@ extern _X_EXPORT int WaitForSomething(int *     /*pClientsReady */
 
 extern _X_EXPORT int ReadRequestFromClient(ClientPtr /*client */ );
 
+extern _X_EXPORT int ReadFdFromClient(ClientPtr client);
+
+extern _X_EXPORT int WriteFdToClient(ClientPtr client, int fd, Bool do_close);
+
 extern _X_EXPORT Bool InsertFakeRequest(ClientPtr /*client */ ,
                                         char * /*data */ ,
                                         int /*count */ );
@@ -167,6 +171,7 @@ extern void ListenOnOpenFD(int /* fd */ , int /* noxauth */ );
 #endif
 
 extern _X_EXPORT CARD32 GetTimeInMillis(void);
+extern _X_EXPORT CARD64 GetTimeInMicros(void);
 
 extern _X_EXPORT void AdjustWaitForDelay(pointer /*waitTime */ ,
                                          unsigned long /*newdelay */ );
diff --git a/xorg-server/include/regionstr.h b/xorg-server/include/regionstr.h
index 805257b3f..4a0725d62 100644
--- a/xorg-server/include/regionstr.h
+++ b/xorg-server/include/regionstr.h
@@ -213,6 +213,8 @@ extern _X_EXPORT RegionPtr RegionCreate(BoxPtr /*rect */ ,
 
 extern _X_EXPORT void RegionDestroy(RegionPtr /*pReg */ );
 
+extern _X_EXPORT RegionPtr RegionDuplicate(RegionPtr /* pOld */);
+
 static inline Bool
 RegionCopy(RegionPtr dst, RegionPtr src)
 {
diff --git a/xorg-server/include/xorg-config.h.in b/xorg-server/include/xorg-config.h.in
index 0df31aeb2..487d7addb 100644
--- a/xorg-server/include/xorg-config.h.in
+++ b/xorg-server/include/xorg-config.h.in
@@ -142,4 +142,7 @@
 /* Define to 1 if you have the `seteuid' function. */
 #undef HAVE_SETEUID
 
+/* Support APM/ACPI power management in the server */
+#undef XF86PM
+
 #endif /* _XORG_CONFIG_H_ */
diff --git a/xorg-server/include/xorg-server.h.in b/xorg-server/include/xorg-server.h.in
index 81935be5c..1281b3e5e 100644
--- a/xorg-server/include/xorg-server.h.in
+++ b/xorg-server/include/xorg-server.h.in
@@ -28,6 +28,9 @@
 /* Build DPMS extension */
 #undef DPMSExtension
 
+/* Build DRI3 extension */
+#undef DRI3
+
 /* Build GLX extension */
 #undef GLXEXT
 
@@ -67,6 +70,9 @@
 /* Internal define for Xinerama */
 #undef PANORAMIX
 
+/* Support Present extension */
+#undef PRESENT
+
 /* Support RANDR extension */
 #undef RANDR
 
diff --git a/xorg-server/mi/miinitext.c b/xorg-server/mi/miinitext.c
index 7e916209f..3c26effbe 100644
--- a/xorg-server/mi/miinitext.c
+++ b/xorg-server/mi/miinitext.c
@@ -287,6 +287,10 @@ static const ExtensionModule staticExtensions[] = {
 #ifdef DPMSExtension
     {DPMSExtensionInit, DPMSExtensionName, &noDPMSExtension},
 #endif
+    {present_extension_init, PRESENT_NAME, NULL},
+#ifdef DRI3
+    {dri3_extension_init, DRI3_NAME, NULL},
+#endif
 #ifdef RES
     {ResExtensionInit, XRES_NAME, &noResExtension},
 #endif
diff --git a/xorg-server/miext/damage/damage.c b/xorg-server/miext/damage/damage.c
index bcbce68d1..07c0579b4 100644
--- a/xorg-server/miext/damage/damage.c
+++ b/xorg-server/miext/damage/damage.c
@@ -382,10 +382,7 @@ damageValidateGC(GCPtr pGC, unsigned long changes, DrawablePtr pDrawable)
     drawableDamage(pDrawable);
     DAMAGE_GC_FUNC_PROLOGUE(pGC);
     (*pGC->funcs->ValidateGC) (pGC, changes, pDrawable);
-    if (pDamage)
-        pGCPriv->ops = pGC->ops; /* so it's not NULL, so FUNC_EPILOGUE does work */
-    else
-        pGCPriv->ops = NULL;
+    pGCPriv->ops = pGC->ops; /* just so it's not NULL */
     DAMAGE_GC_FUNC_EPILOGUE(pGC);
 }
 
diff --git a/xorg-server/miext/sync/Makefile.am b/xorg-server/miext/sync/Makefile.am
index 9aa1ba5d5..e25ceacb0 100644
--- a/xorg-server/miext/sync/Makefile.am
+++ b/xorg-server/miext/sync/Makefile.am
@@ -5,10 +5,11 @@ AM_CFLAGS = $(DIX_CFLAGS)
 AM_CPPFLAGS = 
 
 if XORG
-sdk_HEADERS = misync.h misyncstr.h
+sdk_HEADERS = misync.h misyncstr.h misyncshm.h
 endif
 
 libsync_la_SOURCES =	\
 	misync.c	\
 	misync.h	\
+	misyncshm.c	\
 	misyncstr.h
diff --git a/xorg-server/miext/sync/misync.c b/xorg-server/miext/sync/misync.c
index b6914d18d..3d03d1b59 100644
--- a/xorg-server/miext/sync/misync.c
+++ b/xorg-server/miext/sync/misync.c
@@ -29,20 +29,7 @@
 #include "misync.h"
 #include "misyncstr.h"
 
-static DevPrivateKeyRec syncScreenPrivateKeyRec;
-static DevPrivateKey syncScreenPrivateKey = &syncScreenPrivateKeyRec;
-
-#define SYNC_SCREEN_PRIV(pScreen) 				\
-    (SyncScreenPrivPtr) dixLookupPrivate(&pScreen->devPrivates,	\
-					 syncScreenPrivateKey)
-
-typedef struct _syncScreenPriv {
-    /* Wrappable sync-specific screen functions */
-    SyncScreenFuncsRec funcs;
-
-    /* Wrapped screen functions */
-    CloseScreenProcPtr CloseScreen;
-} SyncScreenPrivRec, *SyncScreenPrivPtr;
+DevPrivateKeyRec miSyncScreenPrivateKey;
 
 /* Default implementations of the sync screen functions */
 void
@@ -62,25 +49,25 @@ miSyncScreenDestroyFence(ScreenPtr pScreen, SyncFence * pFence)
 }
 
 /* Default implementations of the per-object functions */
-static void
+void
 miSyncFenceSetTriggered(SyncFence * pFence)
 {
     pFence->triggered = TRUE;
 }
 
-static void
+void
 miSyncFenceReset(SyncFence * pFence)
 {
     pFence->triggered = FALSE;
 }
 
-static Bool
+Bool
 miSyncFenceCheckTriggered(SyncFence * pFence)
 {
     return pFence->triggered;
 }
 
-static void
+void
 miSyncFenceAddTrigger(SyncTrigger * pTrigger)
 {
     (void) pTrigger;
@@ -88,7 +75,7 @@ miSyncFenceAddTrigger(SyncTrigger * pTrigger)
     return;
 }
 
-static void
+void
 miSyncFenceDeleteTrigger(SyncTrigger * pTrigger)
 {
     (void) pTrigger;
@@ -182,15 +169,15 @@ miSyncSetup(ScreenPtr pScreen)
         &miSyncScreenDestroyFence
     };
 
-    if (!dixPrivateKeyRegistered(syncScreenPrivateKey)) {
-        if (!dixRegisterPrivateKey(syncScreenPrivateKey, PRIVATE_SCREEN,
+    if (!dixPrivateKeyRegistered(&miSyncScreenPrivateKey)) {
+        if (!dixRegisterPrivateKey(&miSyncScreenPrivateKey, PRIVATE_SCREEN,
                                    sizeof(SyncScreenPrivRec)))
             return FALSE;
     }
 
     pScreenPriv = SYNC_SCREEN_PRIV(pScreen);
 
-    if (pScreenPriv->funcs.CreateFence) {
+    if (!pScreenPriv->funcs.CreateFence) {
         pScreenPriv->funcs = miSyncScreenFuncs;
 
         /* Wrap CloseScreen to clean up */
diff --git a/xorg-server/miext/sync/misync.h b/xorg-server/miext/sync/misync.h
index deebb82bc..f63ec2b82 100644
--- a/xorg-server/miext/sync/misync.h
+++ b/xorg-server/miext/sync/misync.h
@@ -76,4 +76,25 @@ extern _X_EXPORT SyncScreenFuncsPtr miSyncGetScreenFuncs(ScreenPtr pScreen);
 extern _X_EXPORT Bool
  miSyncSetup(ScreenPtr pScreen);
 
+Bool
+miSyncFenceCheckTriggered(SyncFence * pFence);
+
+void
+miSyncFenceSetTriggered(SyncFence * pFence);
+
+void
+miSyncFenceReset(SyncFence * pFence);
+
+void
+miSyncFenceAddTrigger(SyncTrigger * pTrigger);
+
+void
+miSyncFenceDeleteTrigger(SyncTrigger * pTrigger);
+
+int
+miSyncInitFenceFromFD(DrawablePtr pDraw, SyncFence *pFence, int fd, BOOL initially_triggered);
+
+int
+miSyncFDFromFence(DrawablePtr pDraw, SyncFence *pFence);
+
 #endif                          /* _MISYNC_H_ */
diff --git a/xorg-server/miext/sync/misyncshm.c b/xorg-server/miext/sync/misyncshm.c
new file mode 100644
index 000000000..ddd15ae49
--- /dev/null
+++ b/xorg-server/miext/sync/misyncshm.c
@@ -0,0 +1,176 @@
+/*
+ * Copyright © 2013 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include "scrnintstr.h"
+#include "misync.h"
+#include "misyncstr.h"
+#include "misyncshm.h"
+#include "pixmapstr.h"
+#include <sys/mman.h>
+#include <unistd.h>
+#include <X11/xshmfence.h>
+
+static DevPrivateKeyRec syncShmFencePrivateKey;
+
+typedef struct _SyncShmFencePrivate {
+    int32_t             *fence;
+    int                 fd;
+} SyncShmFencePrivateRec, *SyncShmFencePrivatePtr;
+
+#define SYNC_FENCE_PRIV(pFence) \
+    (SyncShmFencePrivatePtr) dixLookupPrivate(&pFence->devPrivates, &syncShmFencePrivateKey)
+
+static void
+miSyncShmFenceSetTriggered(SyncFence * pFence)
+{
+    SyncShmFencePrivatePtr      pPriv = SYNC_FENCE_PRIV(pFence);
+
+    if (pPriv->fence)
+        xshmfence_trigger(pPriv->fence);
+    miSyncFenceSetTriggered(pFence);
+}
+
+static void
+miSyncShmFenceReset(SyncFence * pFence)
+{
+    SyncShmFencePrivatePtr      pPriv = SYNC_FENCE_PRIV(pFence);
+
+    if (pPriv->fence)
+        xshmfence_reset(pPriv->fence);
+    miSyncFenceReset(pFence);
+}
+
+static Bool
+miSyncShmFenceCheckTriggered(SyncFence * pFence)
+{
+    SyncShmFencePrivatePtr      pPriv = SYNC_FENCE_PRIV(pFence);
+
+    if (pPriv->fence)
+        return xshmfence_query(pPriv->fence);
+    else
+        return miSyncFenceCheckTriggered(pFence);
+}
+
+static void
+miSyncShmFenceAddTrigger(SyncTrigger * pTrigger)
+{
+    miSyncFenceAddTrigger(pTrigger);
+}
+
+static void
+miSyncShmFenceDeleteTrigger(SyncTrigger * pTrigger)
+{
+    miSyncFenceDeleteTrigger(pTrigger);
+}
+
+static const SyncFenceFuncsRec miSyncShmFenceFuncs = {
+    &miSyncShmFenceSetTriggered,
+    &miSyncShmFenceReset,
+    &miSyncShmFenceCheckTriggered,
+    &miSyncShmFenceAddTrigger,
+    &miSyncShmFenceDeleteTrigger
+};
+
+static void
+miSyncShmScreenCreateFence(ScreenPtr pScreen, SyncFence * pFence,
+                        Bool initially_triggered)
+{
+    SyncShmFencePrivatePtr      pPriv = SYNC_FENCE_PRIV(pFence);
+
+    pPriv->fence = NULL;
+    miSyncScreenCreateFence(pScreen, pFence, initially_triggered);
+    pFence->funcs = miSyncShmFenceFuncs;
+}
+
+static void
+miSyncShmScreenDestroyFence(ScreenPtr pScreen, SyncFence * pFence)
+{
+    SyncShmFencePrivatePtr      pPriv = SYNC_FENCE_PRIV(pFence);
+
+    if (pPriv->fence) {
+        xshmfence_trigger(pPriv->fence);
+        xshmfence_unmap_shm(pPriv->fence);
+        close(pPriv->fd);
+    }
+    miSyncScreenDestroyFence(pScreen, pFence);
+}
+
+int
+miSyncInitFenceFromFD(DrawablePtr pDraw, SyncFence *pFence, int fd, BOOL initially_triggered)
+
+{
+    SyncShmFencePrivatePtr      pPriv = SYNC_FENCE_PRIV(pFence);
+
+    miSyncInitFence(pDraw->pScreen, pFence, initially_triggered);
+
+    pPriv->fence = xshmfence_map_shm(fd);
+    if (pPriv->fence) {
+        pPriv->fd = fd;
+        return Success;
+    }
+    else
+        close(fd);
+    return BadValue;
+}
+
+int
+miSyncFDFromFence(DrawablePtr pDraw, SyncFence *pFence)
+{
+    SyncShmFencePrivatePtr      pPriv = SYNC_FENCE_PRIV(pFence);
+
+    if (!pPriv->fence) {
+        pPriv->fd = xshmfence_alloc_shm();
+        if (pPriv->fd < 0)
+            return -1;
+        pPriv->fence = xshmfence_map_shm(pPriv->fd);
+        if (!pPriv->fence) {
+            close (pPriv->fd);
+            return -1;
+        }
+    }
+    return pPriv->fd;
+}
+
+_X_EXPORT Bool miSyncShmScreenInit(ScreenPtr pScreen)
+{
+    SyncScreenFuncsPtr  funcs;
+
+    if (!miSyncSetup(pScreen))
+        return FALSE;
+
+    if (!dixPrivateKeyRegistered(&syncShmFencePrivateKey)) {
+        if (!dixRegisterPrivateKey(&syncShmFencePrivateKey, PRIVATE_SYNC_FENCE,
+                                   sizeof(SyncShmFencePrivateRec)))
+            return FALSE;
+    }
+
+    funcs = miSyncGetScreenFuncs(pScreen);
+
+    funcs->CreateFence = miSyncShmScreenCreateFence;
+    funcs->DestroyFence = miSyncShmScreenDestroyFence;
+    return TRUE;
+}
+
diff --git a/xorg-server/miext/sync/misyncshm.h b/xorg-server/miext/sync/misyncshm.h
new file mode 100644
index 000000000..4edbb50c3
--- /dev/null
+++ b/xorg-server/miext/sync/misyncshm.h
@@ -0,0 +1,28 @@
+/*
+ * Copyright © 2013 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#ifndef _MISYNCSHM_H_
+#define _MISYNCSYM_H_
+
+extern _X_EXPORT Bool miSyncShmScreenInit(ScreenPtr pScreen);
+
+#endif /* _MISYNCSHM_H_ */
diff --git a/xorg-server/miext/sync/misyncstr.h b/xorg-server/miext/sync/misyncstr.h
index e19256fee..b5bf6fd91 100644
--- a/xorg-server/miext/sync/misyncstr.h
+++ b/xorg-server/miext/sync/misyncstr.h
@@ -29,6 +29,7 @@
 #define _MISYNCSTR_H_
 
 #include "dix.h"
+#include "scrnintstr.h"
 #include <X11/extensions/syncconst.h>
 
 #define CARD64 XSyncValue       /* XXX temporary! need real 64 bit values for Alpha */
@@ -79,4 +80,18 @@ typedef struct _SyncTriggerList {
     struct _SyncTriggerList *next;
 } SyncTriggerList;
 
+extern DevPrivateKeyRec miSyncScreenPrivateKey;
+
+#define SYNC_SCREEN_PRIV(pScreen) 				\
+    (SyncScreenPrivPtr) dixLookupPrivate(&pScreen->devPrivates,	\
+					 &miSyncScreenPrivateKey)
+
+typedef struct _syncScreenPriv {
+    /* Wrappable sync-specific screen functions */
+    SyncScreenFuncsRec funcs;
+
+    /* Wrapped screen functions */
+    CloseScreenProcPtr CloseScreen;
+} SyncScreenPrivRec, *SyncScreenPrivPtr;
+
 #endif                          /* _MISYNCSTR_H_ */
diff --git a/xorg-server/os/backtrace.c b/xorg-server/os/backtrace.c
index 426f9b15b..3d1195b86 100644
--- a/xorg-server/os/backtrace.c
+++ b/xorg-server/os/backtrace.c
@@ -114,14 +114,15 @@ xorg_backtrace(void)
 void
 xorg_backtrace(void)
 {
-    void *array[64];
+    const int BT_SIZE = 64;
+    void *array[BT_SIZE];
     const char *mod;
     int size, i;
     Dl_info info;
 
     ErrorFSigSafe("\n");
     ErrorFSigSafe("Backtrace:\n");
-    size = backtrace(array, 64);
+    size = backtrace(array, BT_SIZE);
     for (i = 0; i < size; i++) {
         int rc = dladdr(array[i], &info);
 
diff --git a/xorg-server/os/connection.c b/xorg-server/os/connection.c
index d073c2f91..99f0da06c 100644
--- a/xorg-server/os/connection.c
+++ b/xorg-server/os/connection.c
@@ -960,7 +960,7 @@ ErrorConnMax(XtransConnInfo trans_conn)
         iov[0].iov_len = sz_xConnSetupPrefix;
         iov[0].iov_base = (char *) &csp;
         iov[1].iov_len = csp.lengthReason;
-        iov[1].iov_base = NOROOM;
+        iov[1].iov_base = (void *) NOROOM;
         iov[2].iov_len = (4 - (csp.lengthReason & 3)) & 3;
         iov[2].iov_base = pad;
         (void) _XSERVTransWritev(trans_conn, iov, 3);
diff --git a/xorg-server/os/io.c b/xorg-server/os/io.c
index 2c8b05a76..c0bd68d97 100644
--- a/xorg-server/os/io.c
+++ b/xorg-server/os/io.c
@@ -259,6 +259,12 @@ ReadRequestFromClient(ClientPtr client)
         oc->input = oci;
     }
 
+    /* Discard any unused file descriptors */
+    while (client->req_fds > 0) {
+        int req_fd = ReadFdFromClient(client);
+        if (req_fd >= 0)
+            close(req_fd);
+    }
     /* advance to start of next request */
 
     oci->bufptr += oci->lenLastReq;
@@ -485,6 +491,29 @@ ReadRequestFromClient(ClientPtr client)
     return needed;
 }
 
+int
+ReadFdFromClient(ClientPtr client)
+{
+    int fd = -1;
+
+    if (client->req_fds > 0) {
+        OsCommPtr oc = (OsCommPtr) client->osPrivate;
+
+        --client->req_fds;
+        fd = _XSERVTransRecvFd(oc->trans_conn);
+    } else
+        LogMessage(X_ERROR, "Request asks for FD without setting req_fds\n");
+    return fd;
+}
+
+int
+WriteFdToClient(ClientPtr client, int fd, Bool do_close)
+{
+    OsCommPtr oc = (OsCommPtr) client->osPrivate;
+
+    return _XSERVTransSendFd(oc->trans_conn, fd, do_close);
+}
+
 /*****************************************************************
  * InsertFakeRequest
  *    Splice a consed up (possibly partial) request in as the next request.
diff --git a/xorg-server/os/utils.c b/xorg-server/os/utils.c
index ddd3c0c7d..202e5da06 100644
--- a/xorg-server/os/utils.c
+++ b/xorg-server/os/utils.c
@@ -451,6 +451,11 @@ GetTimeInMillis(void)
 {
     return GetTickCount();
 }
+CARD64
+GetTimeInMicros(void)
+{
+    return (CARD64) GetTickCount() * 1000;
+}
 #else
 CARD32
 GetTimeInMillis(void)
@@ -481,6 +486,28 @@ GetTimeInMillis(void)
     X_GETTIMEOFDAY(&tv);
     return (tv.tv_sec * 1000) + (tv.tv_usec / 1000);
 }
+
+CARD64
+GetTimeInMicros(void)
+{
+    struct timeval tv;
+#ifdef MONOTONIC_CLOCK
+    struct timespec tp;
+    static clockid_t clockid;
+
+    if (!clockid) {
+        if (clock_gettime(CLOCK_MONOTONIC, &tp) == 0)
+            clockid = CLOCK_MONOTONIC;
+        else
+            clockid = ~0L;
+    }
+    if (clock_gettime(CLOCK_MONOTONIC, &tp) == 0)
+        return (CARD64) tp.tv_sec * (CARD64)1000000 + tp.tv_nsec / 1000;
+#endif
+
+    X_GETTIMEOFDAY(&tv);
+    return (CARD64) tv.tv_sec * (CARD64)1000000000 + (CARD64) tv.tv_usec * 1000;
+}
 #endif
 
 void
diff --git a/xorg-server/os/xstrans.c b/xorg-server/os/xstrans.c
index cdc8f8eec..30de32b1e 100644..100755
--- a/xorg-server/os/xstrans.c
+++ b/xorg-server/os/xstrans.c
@@ -5,9 +5,11 @@
 #include <X11/Xfuncproto.h>
 
 /* ErrorF is used by xtrans */
-/*extern _X_EXPORT void
+/*#ifndef HAVE_DIX_CONFIG_H
+extern _X_EXPORT void
 ErrorF(const char *f, ...)
-_X_ATTRIBUTE_PRINTF(1, 2);*/
+_X_ATTRIBUTE_PRINTF(1, 2);
+#endif*/
 
 #define TRANS_REOPEN
 #define TRANS_SERVER
diff --git a/xorg-server/present/Makefile.am b/xorg-server/present/Makefile.am
new file mode 100644
index 000000000..7fea6699f
--- /dev/null
+++ b/xorg-server/present/Makefile.am
@@ -0,0 +1,17 @@
+noinst_LTLIBRARIES = libpresent.la
+AM_CFLAGS = \
+	-DHAVE_XORG_CONFIG_H \
+	@DIX_CFLAGS@ @XORG_CFLAGS@
+
+libpresent_la_SOURCES = \
+	present.h \
+	present.c \
+	present_event.c \
+	present_fake.c \
+	present_fence.c \
+	present_notify.c \
+	present_priv.h \
+	present_request.c \
+	present_screen.c
+
+sdk_HEADERS = present.h presentext.h
diff --git a/xorg-server/present/present.c b/xorg-server/present/present.c
new file mode 100644
index 000000000..4c97ce40c
--- /dev/null
+++ b/xorg-server/present/present.c
@@ -0,0 +1,775 @@
+/*
+ * Copyright © 2013 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#include "present_priv.h"
+#include <gcstruct.h>
+#include <misync.h>
+#include <misyncstr.h>
+#ifdef MONOTONIC_CLOCK
+#include <time.h>
+#endif
+
+static uint64_t         present_event_id;
+static struct xorg_list present_exec_queue;
+static struct xorg_list present_flip_queue;
+
+#if 0
+#define DebugPresent(x) ErrorF x
+#else
+#define DebugPresent(x)
+#endif
+
+/*
+ * Copies the update region from a pixmap to the target drawable
+ */
+static void
+present_copy_region(DrawablePtr drawable,
+                    PixmapPtr pixmap,
+                    RegionPtr update,
+                    int16_t x_off,
+                    int16_t y_off)
+{
+    ScreenPtr   screen = drawable->pScreen;
+    GCPtr       gc;
+
+    gc = GetScratchGC(drawable->depth, screen);
+    if (update) {
+        ChangeGCVal     changes[2];
+
+        changes[0].val = x_off;
+        changes[1].val = y_off;
+        ChangeGC(serverClient, gc,
+                 GCClipXOrigin|GCClipYOrigin,
+                 changes);
+        (*gc->funcs->ChangeClip)(gc, CT_REGION, update, 0);
+    }
+    ValidateGC(drawable, gc);
+    (*gc->ops->CopyArea)(&pixmap->drawable,
+                         drawable,
+                         gc,
+                         0, 0,
+                         pixmap->drawable.width, pixmap->drawable.height,
+                         x_off, y_off);
+    if (update)
+        (*gc->funcs->ChangeClip)(gc, CT_NONE, NULL, 0);
+    FreeScratchGC(gc);
+}
+
+static Bool
+present_check_flip(RRCrtcPtr    crtc,
+                   WindowPtr    window,
+                   PixmapPtr    pixmap,
+                   Bool         sync_flip,
+                   RegionPtr    valid,
+                   int16_t      x_off,
+                   int16_t      y_off)
+{
+    ScreenPtr                   screen = window->drawable.pScreen;
+    WindowPtr                   root = screen->root;
+    present_screen_priv_ptr     screen_priv = present_screen_priv(screen);
+
+    if (!screen_priv)
+        return FALSE;
+
+    if (!screen_priv->info)
+        return FALSE;
+
+    if (!crtc)
+        return FALSE;
+
+    /* Check to see if the driver supports flips at all */
+    if (!screen_priv->info->flip)
+        return FALSE;
+
+    /* Can't pend a flip while unflipping */
+    if (screen_priv->unflip_event_id) {
+        return FALSE;
+    }
+
+    /* Can't have two pending flips at the same time */
+    if (screen_priv->flip_pending) {
+        return FALSE;
+    }
+
+    /* Make sure the window hasn't been redirected with Composite */
+    if (screen->GetWindowPixmap(window) != screen->GetScreenPixmap(screen))
+        return FALSE;
+
+    /* Check for full-screen window */
+    if (!RegionEqual(&window->clipList, &root->winSize)) {
+        return FALSE;
+    }
+
+    /* Source pixmap must align with window exactly */
+    if (x_off || y_off) {
+        return FALSE;
+    }
+
+    /* Make sure the area marked as valid fills the screen */
+    if (valid && !RegionEqual(valid, &root->winSize)) {
+        return FALSE;
+    }
+
+    /* Does the window match the pixmap exactly? */
+    if (window->drawable.x != 0 || window->drawable.y != 0 ||
+#ifdef COMPOSITE
+        window->drawable.x != pixmap->screen_x || window->drawable.y != pixmap->screen_y ||
+#endif
+        window->drawable.width != pixmap->drawable.width ||
+        window->drawable.height != pixmap->drawable.height) {
+        return FALSE;
+    }
+
+    /* Ask the driver for permission */
+    if (screen_priv->info->check_flip) {
+        if (!(*screen_priv->info->check_flip) (crtc, window, pixmap, sync_flip)) {
+            return FALSE;
+        }
+    }
+
+    return TRUE;
+}
+
+static Bool
+present_flip(RRCrtcPtr crtc,
+             uint64_t event_id,
+             uint64_t target_msc,
+             PixmapPtr pixmap,
+             Bool sync_flip)
+{
+    ScreenPtr                   screen = crtc->pScreen;
+    present_screen_priv_ptr     screen_priv = present_screen_priv(screen);
+
+    return (*screen_priv->info->flip) (crtc, event_id, target_msc, pixmap, sync_flip);
+}
+
+static void
+present_vblank_notify(present_vblank_ptr vblank, CARD8 kind, CARD8 mode, uint64_t ust, uint64_t crtc_msc)
+{
+    int         n;
+
+    present_send_complete_notify(vblank->window, kind, mode, vblank->serial, ust, crtc_msc - vblank->msc_offset);
+    for (n = 0; n < vblank->num_notifies; n++) {
+        WindowPtr   window = vblank->notifies[n].window;
+        CARD32      serial = vblank->notifies[n].serial;
+
+        if (window)
+            present_send_complete_notify(window, kind, mode, serial, ust, crtc_msc - vblank->msc_offset);
+    }
+}
+
+static void
+present_pixmap_idle(PixmapPtr pixmap, WindowPtr window, CARD32 serial, struct present_fence *present_fence)
+{
+    present_fence_set_triggered(present_fence);
+    present_send_idle_notify(window, serial, pixmap, present_fence);
+}
+
+RRCrtcPtr
+present_get_crtc(WindowPtr window)
+{
+    ScreenPtr                   screen = window->drawable.pScreen;
+    present_screen_priv_ptr     screen_priv = present_screen_priv(screen);
+
+    if (!screen_priv)
+        return NULL;
+
+    if (!screen_priv->info)
+        return NULL;
+
+    return (*screen_priv->info->get_crtc)(window);
+}
+
+uint32_t
+present_query_capabilities(RRCrtcPtr crtc)
+{
+    present_screen_priv_ptr     screen_priv;
+
+    if (!crtc)
+        return 0;
+
+    screen_priv = present_screen_priv(crtc->pScreen);
+
+    if (!screen_priv)
+        return 0;
+
+    if (!screen_priv->info)
+        return 0;
+
+    return screen_priv->info->capabilities;
+}
+
+static int
+present_get_ust_msc(WindowPtr window, RRCrtcPtr crtc, uint64_t *ust, uint64_t *msc)
+{
+    ScreenPtr                   screen = window->drawable.pScreen;
+    present_screen_priv_ptr     screen_priv = present_screen_priv(screen);
+
+    if (crtc == NULL)
+        return present_fake_get_ust_msc(screen, ust, msc);
+    else
+        return (*screen_priv->info->get_ust_msc)(crtc, ust, msc);
+}
+
+static void
+present_flush(WindowPtr window)
+{
+    ScreenPtr                   screen = window->drawable.pScreen;
+    present_screen_priv_ptr     screen_priv = present_screen_priv(screen);
+
+    if (!screen_priv)
+        return;
+
+    if (!screen_priv->info)
+        return;
+
+    (*screen_priv->info->flush) (window);
+}
+
+static int
+present_queue_vblank(ScreenPtr screen,
+                     RRCrtcPtr crtc,
+                     uint64_t event_id,
+                     uint64_t msc)
+{
+    Bool                        ret;
+
+    if (crtc == NULL)
+        ret = present_fake_queue_vblank(screen, event_id, msc);
+    else
+    {
+        present_screen_priv_ptr     screen_priv = present_screen_priv(screen);
+        ret = (*screen_priv->info->queue_vblank) (crtc, event_id, msc);
+    }
+    return ret;
+}
+
+static uint64_t
+present_window_to_crtc_msc(WindowPtr window, RRCrtcPtr crtc, uint64_t window_msc, uint64_t new_msc)
+{
+    present_window_priv_ptr     window_priv = present_get_window_priv(window, TRUE);
+
+    if (crtc != window_priv->crtc) {
+        uint64_t        old_ust, old_msc;
+
+        /* The old CRTC may have been turned off, in which case
+         * we'll just use whatever previous MSC we'd seen from this CRTC
+         */
+
+        if (present_get_ust_msc(window, window_priv->crtc, &old_ust, &old_msc) != Success)
+            old_msc = window_priv->msc;
+
+        window_priv->msc_offset += new_msc - old_msc;
+        window_priv->crtc = crtc;
+    }
+
+    return window_msc + window_priv->msc_offset;
+}
+
+static void
+present_flip_idle(ScreenPtr screen)
+{
+    present_screen_priv_ptr screen_priv = present_screen_priv(screen);
+
+    if (screen_priv->flip_pixmap) {
+        present_pixmap_idle(screen_priv->flip_pixmap, screen_priv->flip_window,
+                            screen_priv->flip_serial, screen_priv->flip_idle_fence);
+        present_fence_destroy(screen_priv->flip_idle_fence);
+        dixDestroyPixmap(screen_priv->flip_pixmap, screen_priv->flip_pixmap->drawable.id);
+        screen_priv->flip_crtc = NULL;
+        screen_priv->flip_window = NULL;
+        screen_priv->flip_serial = 0;
+        screen_priv->flip_pixmap = NULL;
+        screen_priv->flip_idle_fence = NULL;
+    }
+}
+
+static void
+present_unflip(ScreenPtr screen)
+{
+    present_screen_priv_ptr screen_priv = present_screen_priv(screen);
+
+    assert (!screen_priv->unflip_event_id);
+    assert (!screen_priv->flip_pending);
+
+    /* Update the screen pixmap with the current flip pixmap contents
+     */
+    if (screen_priv->flip_pixmap) {
+        present_copy_region(&screen->GetScreenPixmap(screen)->drawable,
+                            screen_priv->flip_pixmap,
+                            NULL, 0, 0);
+    }
+    screen_priv->unflip_event_id = ++present_event_id;
+    DebugPresent(("u %lld\n", screen_priv->unflip_event_id));
+    (*screen_priv->info->unflip) (screen, screen_priv->unflip_event_id);
+}
+
+static void
+present_execute(present_vblank_ptr vblank, uint64_t ust, uint64_t crtc_msc);
+
+static void
+present_flip_notify(present_vblank_ptr vblank, uint64_t ust, uint64_t crtc_msc)
+{
+    WindowPtr                   window = vblank->window;
+    ScreenPtr                   screen = window->drawable.pScreen;
+    present_screen_priv_ptr     screen_priv = present_screen_priv(screen);
+
+    DebugPresent(("\tn %p %8lld: %08lx -> %08lx\n", vblank, vblank->target_msc,
+           vblank->pixmap ? vblank->pixmap->drawable.id : 0,
+                  vblank->window->drawable.id));
+
+    assert (vblank == screen_priv->flip_pending);
+
+    present_flip_idle(screen);
+
+    /* Transfer reference for pixmap and fence from vblank to screen_priv */
+    screen_priv->flip_crtc = vblank->crtc;
+    screen_priv->flip_window = vblank->window;
+    screen_priv->flip_serial = vblank->serial;
+    screen_priv->flip_pixmap = vblank->pixmap;
+    screen_priv->flip_idle_fence = vblank->idle_fence;
+
+    vblank->pixmap = NULL;
+    vblank->idle_fence = NULL;
+
+    screen_priv->flip_pending = NULL;
+
+    if (vblank->abort_flip)
+        present_unflip(screen);
+
+    if (!vblank->window_destroyed)
+        present_vblank_notify(vblank, PresentCompleteKindPixmap, PresentCompleteModeFlip, ust, crtc_msc);
+    present_vblank_destroy(vblank);
+}
+
+void
+present_event_notify(uint64_t event_id, uint64_t ust, uint64_t msc)
+{
+    present_vblank_ptr  vblank, tmp;
+    int                 s;
+
+    xorg_list_for_each_entry_safe(vblank, tmp, &present_exec_queue, event_queue) {
+        if (vblank->event_id == event_id) {
+            xorg_list_del(&vblank->event_queue);
+            present_execute(vblank, ust, msc);
+            return;
+        }
+    }
+    xorg_list_for_each_entry_safe(vblank, tmp, &present_flip_queue, event_queue) {
+        if (vblank->event_id == event_id) {
+            xorg_list_del(&vblank->event_queue);
+            present_flip_notify(vblank, ust, msc);
+            return;
+        }
+    }
+
+    for (s = 0; s < screenInfo.numScreens; s++) {
+        ScreenPtr               screen = screenInfo.screens[s];
+        present_screen_priv_ptr screen_priv = present_screen_priv(screen);
+
+        if (event_id == screen_priv->unflip_event_id) {
+            DebugPresent(("\tun %lld\n", event_id));
+            screen_priv->unflip_event_id = 0;
+            present_flip_idle(screen);
+        }
+    }
+}
+
+/*
+ * 'window' is being reconfigured. Check to see if it is involved
+ * in flipping and clean up as necessary
+ */
+void
+present_check_flip_window (WindowPtr window)
+{
+    ScreenPtr                   screen = window->drawable.pScreen;
+    present_screen_priv_ptr     screen_priv = present_screen_priv(screen);
+    present_window_priv_ptr     window_priv = present_window_priv(window);
+    present_vblank_ptr          flip_pending = screen_priv->flip_pending;
+    present_vblank_ptr          vblank;
+
+    /* If this window hasn't ever been used with Present, it can't be
+     * flipping
+     */
+    if (!window_priv)
+        return;
+
+    if (screen_priv->unflip_event_id)
+        return;
+
+    if (flip_pending) {
+        /*
+         * Check pending flip
+         */
+        if (flip_pending->window == window) {
+            if (!present_check_flip(flip_pending->crtc, window, flip_pending->pixmap,
+                                    flip_pending->sync_flip, NULL, 0, 0))
+                flip_pending->abort_flip = TRUE;
+        }
+    } else {
+        /*
+         * Check current flip
+         */
+        if (window == screen_priv->flip_window) {
+            if (!present_check_flip(screen_priv->flip_crtc, window, screen_priv->flip_pixmap, FALSE, NULL, 0, 0))
+                present_unflip(screen);
+        }
+    }
+
+    /* Now check any queued vblanks */
+    xorg_list_for_each_entry(vblank, &window_priv->vblank, window_list) {
+        if (vblank->flip && !present_check_flip(vblank->crtc, window, vblank->pixmap, FALSE, NULL, 0, 0))
+            vblank->flip = FALSE;
+    }
+}
+
+/*
+ * Once the required MSC has been reached, execute the pending request.
+ *
+ * For requests to actually present something, either blt contents to
+ * the screen or queue a frame buffer swap.
+ *
+ * For requests to just get the current MSC/UST combo, skip that part and
+ * go straight to event delivery
+ */
+
+static void
+present_execute(present_vblank_ptr vblank, uint64_t ust, uint64_t crtc_msc)
+{
+    WindowPtr                   window = vblank->window;
+    present_screen_priv_ptr     screen_priv = present_screen_priv(window->drawable.pScreen);
+
+    if (vblank->wait_fence) {
+        /* XXX check fence, queue if not ready */
+    }
+
+    xorg_list_del(&vblank->event_queue);
+    if (vblank->pixmap) {
+
+        if (vblank->flip && screen_priv->flip_pending == NULL && !screen_priv->unflip_event_id) {
+
+            DebugPresent(("\tf %p %8lld: %08lx -> %08lx\n", vblank, crtc_msc, vblank->pixmap->drawable.id, vblank->window->drawable.id));
+            /* Prepare to flip by removing from the window/screen lists
+             * and sticking it into the flip_pending field
+             */
+            screen_priv->flip_pending = vblank;
+            xorg_list_del(&vblank->window_list);
+
+            xorg_list_add(&vblank->event_queue, &present_flip_queue);
+            /* Try to flip
+             */
+            if (present_flip(vblank->crtc, vblank->event_id, vblank->target_msc, vblank->pixmap, vblank->sync_flip))
+                return;
+
+            xorg_list_del(&vblank->event_queue);
+            /* Oops, flip failed. Clear the flip_pending field
+              */
+            screen_priv->flip_pending = NULL;
+            vblank->flip = FALSE;
+        }
+        DebugPresent(("\tc %p %8lld: %08lx -> %08lx\n", vblank, crtc_msc, vblank->pixmap->drawable.id, vblank->window->drawable.id));
+        if (screen_priv->flip_pending) {
+
+            /* Check pending flip
+             */
+            if (window == screen_priv->flip_pending->window)
+                screen_priv->flip_pending->abort_flip = TRUE;
+        } else if (!screen_priv->unflip_event_id) {
+
+            /* Check current flip
+             */
+            if (window == screen_priv->flip_window)
+                present_unflip(window->drawable.pScreen);
+        }
+        present_copy_region(&window->drawable, vblank->pixmap, vblank->update, vblank->x_off, vblank->y_off);
+
+        /* present_copy_region sticks the region into a scratch GC,
+         * which is then freed, freeing the region
+         */
+        vblank->update = NULL;
+        present_flush(window);
+
+        present_pixmap_idle(vblank->pixmap, vblank->window, vblank->serial, vblank->idle_fence);
+    }
+    present_vblank_notify(vblank, vblank->kind, PresentCompleteModeCopy, ust, crtc_msc);
+    present_vblank_destroy(vblank);
+}
+
+int
+present_pixmap(WindowPtr window,
+               PixmapPtr pixmap,
+               CARD32 serial,
+               RegionPtr valid,
+               RegionPtr update,
+               int16_t x_off,
+               int16_t y_off,
+               RRCrtcPtr target_crtc,
+               SyncFence *wait_fence,
+               SyncFence *idle_fence,
+               uint32_t options,
+               uint64_t window_msc,
+               uint64_t divisor,
+               uint64_t remainder,
+               present_notify_ptr notifies,
+               int num_notifies)
+{
+    uint64_t                    ust;
+    uint64_t                    target_msc;
+    uint64_t                    crtc_msc;
+    int                         ret;
+    present_vblank_ptr          vblank;
+    ScreenPtr                   screen = window->drawable.pScreen;
+    present_window_priv_ptr     window_priv = present_get_window_priv(window, TRUE);
+    present_screen_priv_ptr     screen_priv = present_screen_priv(screen);
+
+    if (!window_priv)
+        return BadAlloc;
+
+    if (!target_crtc) {
+        /* Update the CRTC if we have a pixmap or we don't have a CRTC
+         */
+        if (!pixmap)
+            target_crtc = window_priv->crtc;
+
+        if (!target_crtc)
+            target_crtc = present_get_crtc(window);
+    }
+
+    present_get_ust_msc(window, target_crtc, &ust, &crtc_msc);
+
+    target_msc = present_window_to_crtc_msc(window, target_crtc, window_msc, crtc_msc);
+
+    /* Stash the current MSC away in case we need it later
+     */
+    window_priv->msc = crtc_msc;
+
+    /* Adjust target_msc to match modulus
+     */
+    if (crtc_msc >= target_msc) {
+        if (divisor != 0) {
+            target_msc = crtc_msc - (crtc_msc % divisor) + remainder;
+            if (target_msc <= crtc_msc)
+                target_msc += divisor;
+        } else
+            target_msc = crtc_msc;
+    }
+
+    /*
+     * Look for a matching presentation already on the list and
+     * don't bother doing the previous one if this one will overwrite it
+     * in the same frame
+     */
+
+    if (!update) {
+        xorg_list_for_each_entry(vblank, &window_priv->vblank, window_list) {
+
+            if (!vblank->pixmap)
+                continue;
+
+            if (vblank->crtc != target_crtc || vblank->target_msc != target_msc)
+                continue;
+
+            present_pixmap_idle(vblank->pixmap, vblank->window, vblank->serial, vblank->idle_fence);
+            present_fence_destroy(vblank->idle_fence);
+            dixDestroyPixmap(vblank->pixmap, vblank->pixmap->drawable.id);
+
+            vblank->pixmap = NULL;
+            vblank->idle_fence = NULL;
+        }
+    }
+
+    vblank = calloc (1, sizeof (present_vblank_rec));
+    if (!vblank)
+        return BadAlloc;
+
+    xorg_list_append(&vblank->window_list, &window_priv->vblank);
+    xorg_list_init(&vblank->event_queue);
+
+    vblank->screen = screen;
+    vblank->window = window;
+    vblank->pixmap = pixmap;
+    vblank->event_id = ++present_event_id;
+    if (pixmap) {
+        vblank->kind = PresentCompleteKindPixmap;
+        pixmap->refcnt++;
+    } else
+        vblank->kind = PresentCompleteKindNotifyMSC;
+
+    vblank->serial = serial;
+
+    if (valid) {
+        vblank->valid = RegionDuplicate(valid);
+        if (!vblank->valid)
+            goto no_mem;
+    }
+    if (update) {
+        vblank->update = RegionDuplicate(update);
+        if (!vblank->update)
+            goto no_mem;
+    }
+
+    vblank->x_off = x_off;
+    vblank->y_off = y_off;
+    vblank->target_msc = target_msc;
+    vblank->crtc = target_crtc;
+    vblank->msc_offset = window_priv->msc_offset;
+    vblank->notifies = notifies;
+    vblank->num_notifies = num_notifies;
+
+    if (!screen_priv->info || !(screen_priv->info->capabilities & PresentCapabilityAsync))
+        vblank->sync_flip = TRUE;
+
+    if (pixmap && present_check_flip (target_crtc, window, pixmap, vblank->sync_flip, valid, x_off, y_off)) {
+        vblank->flip = TRUE;
+        if (vblank->sync_flip)
+            target_msc--;
+    }
+
+    if (idle_fence) {
+        vblank->idle_fence = present_fence_create(idle_fence);
+        if (!vblank->idle_fence)
+            goto no_mem;
+    }
+
+    if (pixmap)
+        DebugPresent(("q %p %8lld: %08lx -> %08lx (crtc %d)\n",
+                      vblank, target_msc, vblank->pixmap->drawable.id, vblank->window->drawable.id, target_crtc ? 1 : 0));
+
+    xorg_list_add(&vblank->event_queue, &present_exec_queue);
+    if (target_msc >= crtc_msc) {
+        ret = present_queue_vblank(screen, target_crtc, vblank->event_id, target_msc);
+        if (ret != Success) {
+            xorg_list_del(&vblank->event_queue);
+            goto failure;
+        }
+    } else
+        present_execute(vblank, ust, crtc_msc);
+
+    return Success;
+
+no_mem:
+    ret = BadAlloc;
+failure:
+    vblank->notifies = NULL;
+    present_vblank_destroy(vblank);
+    return ret;
+}
+
+void
+present_abort_vblank(ScreenPtr screen, RRCrtcPtr crtc, uint64_t event_id, uint64_t msc)
+{
+    present_vblank_ptr  vblank, tmp;
+
+    if (crtc == NULL)
+        present_fake_abort_vblank(screen, event_id, msc);
+    else
+    {
+        present_screen_priv_ptr     screen_priv = present_screen_priv(screen);
+
+        (*screen_priv->info->abort_vblank) (crtc, event_id, msc);
+    }
+
+    xorg_list_for_each_entry_safe(vblank, tmp, &present_exec_queue, event_queue) {
+        if (vblank->event_id == event_id) {
+            xorg_list_del(&vblank->event_queue);
+            return;
+        }
+    }
+    xorg_list_for_each_entry_safe(vblank, tmp, &present_flip_queue, event_queue) {
+        if (vblank->event_id == event_id) {
+            xorg_list_del(&vblank->event_queue);
+            return;
+        }
+    }
+}
+
+int
+present_notify_msc(WindowPtr window,
+                   CARD32 serial,
+                   uint64_t target_msc,
+                   uint64_t divisor,
+                   uint64_t remainder)
+{
+    return present_pixmap(window,
+                          NULL,
+                          serial,
+                          NULL, NULL,
+                          0, 0,
+                          NULL,
+                          NULL, NULL,
+                          0,
+                          target_msc, divisor, remainder, NULL, 0);
+}
+
+void
+present_flip_destroy(ScreenPtr screen)
+{
+    present_screen_priv_ptr     screen_priv = present_screen_priv(screen);
+
+    /* XXX this needs to be synchronous for server reset */
+
+    /* Do the actual cleanup once the flip has been performed by the hardware */
+    if (screen_priv->flip_pending)
+        screen_priv->flip_pending->abort_flip = TRUE;
+}
+
+void
+present_vblank_destroy(present_vblank_ptr vblank)
+{
+    /* Remove vblank from window and screen lists */
+    xorg_list_del(&vblank->window_list);
+
+    DebugPresent(("\td %p %8lld: %08lx -> %08lx\n", vblank, vblank->target_msc,
+                  vblank->pixmap ? vblank->pixmap->drawable.id : 0,
+                  vblank->window->drawable.id));
+
+    /* Drop pixmap reference */
+    if (vblank->pixmap)
+        dixDestroyPixmap(vblank->pixmap, vblank->pixmap->drawable.id);
+
+    /* Free regions */
+    if (vblank->valid)
+        RegionDestroy(vblank->valid);
+    if (vblank->update)
+        RegionDestroy(vblank->update);
+
+    if (vblank->idle_fence)
+        present_fence_destroy(vblank->idle_fence);
+
+    if (vblank->notifies)
+        present_destroy_notifies(vblank->notifies, vblank->num_notifies);
+
+    free(vblank);
+}
+
+Bool
+present_init(void)
+{
+    xorg_list_init(&present_exec_queue);
+    xorg_list_init(&present_flip_queue);
+    present_fake_queue_init();
+    return TRUE;
+}
diff --git a/xorg-server/present/present.h b/xorg-server/present/present.h
new file mode 100644
index 000000000..6a451fb23
--- /dev/null
+++ b/xorg-server/present/present.h
@@ -0,0 +1,118 @@
+/*
+ * Copyright © 2013 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#ifndef _PRESENT_H_
+#define _PRESENT_H_
+
+#include <X11/extensions/presentproto.h>
+#include "randrstr.h"
+#include "presentext.h"
+
+typedef struct present_vblank present_vblank_rec, *present_vblank_ptr;
+
+/* Return the current CRTC for 'window'.
+ */
+typedef RRCrtcPtr (*present_get_crtc_ptr) (WindowPtr window);
+
+/* Return the current ust/msc for 'crtc'
+ */
+typedef int (*present_get_ust_msc_ptr) (RRCrtcPtr crtc, uint64_t *ust, uint64_t *msc);
+
+/* Queue callback on 'crtc' for time 'msc'. Call present_event_notify with 'event_id'
+ * at or after 'msc'. Return false if it didn't happen (which might occur if 'crtc'
+ * is not currently generating vblanks).
+ */
+typedef Bool (*present_queue_vblank_ptr) (RRCrtcPtr crtc,
+                                          uint64_t event_id,
+                                          uint64_t msc);
+
+/* Abort pending vblank. The extension is no longer interested in
+ * 'event_id' which was to be notified at 'msc'. If possible, the
+ * driver is free to de-queue the notification.
+ */
+typedef void (*present_abort_vblank_ptr) (RRCrtcPtr crtc, uint64_t event_id, uint64_t msc);
+
+/* Flush pending drawing on 'window' to the hardware.
+ */
+typedef void (*present_flush_ptr) (WindowPtr window);
+
+/* Check if 'pixmap' is suitable for flipping to 'window'.
+ */
+typedef Bool (*present_check_flip_ptr) (RRCrtcPtr crtc, WindowPtr window, PixmapPtr pixmap, Bool sync_flip);
+
+/* Flip pixmap, return false if it didn't happen.
+ *
+ * 'crtc' is to be used for any necessary synchronization.
+ *
+ * 'sync_flip' requests that the flip be performed at the next
+ * vertical blank interval to avoid tearing artifacts. If false, the
+ * flip should be performed as soon as possible.
+ *
+ * present_event_notify should be called with 'event_id' when the flip
+ * occurs
+ */
+typedef Bool (*present_flip_ptr) (RRCrtcPtr crtc,
+                                  uint64_t event_id,
+                                  uint64_t target_msc,
+                                  PixmapPtr pixmap,
+                                  Bool sync_flip);
+
+/* "unflip" back to the regular screen scanout buffer
+ *
+ * present_event_notify should be called with 'event_id' when the unflip occurs.
+ */
+typedef void (*present_unflip_ptr) (ScreenPtr screen,
+                                    uint64_t event_id);
+
+#define PRESENT_SCREEN_INFO_VERSION        0
+
+typedef struct present_screen_info {
+    uint32_t                            version;
+
+    present_get_crtc_ptr                get_crtc;
+    present_get_ust_msc_ptr             get_ust_msc;
+    present_queue_vblank_ptr            queue_vblank;
+    present_abort_vblank_ptr            abort_vblank;
+    present_flush_ptr                   flush;
+    uint32_t                            capabilities;
+    present_check_flip_ptr              check_flip;
+    present_flip_ptr                    flip;
+    present_unflip_ptr                  unflip;
+
+} present_screen_info_rec, *present_screen_info_ptr;
+
+/*
+ * Called when 'event_id' occurs. 'ust' and 'msc' indicate when the
+ * event actually happened
+ */
+extern _X_EXPORT void
+present_event_notify(uint64_t event_id, uint64_t ust, uint64_t msc);
+
+/* 'crtc' has been turned off, so any pending events will never occur.
+ */
+extern _X_EXPORT void
+present_event_abandon(RRCrtcPtr crtc);
+
+extern _X_EXPORT Bool
+present_screen_init(ScreenPtr screen, present_screen_info_ptr info);
+
+#endif /* _PRESENT_H_ */
diff --git a/xorg-server/present/present_event.c b/xorg-server/present/present_event.c
new file mode 100644
index 000000000..a30bc8286
--- /dev/null
+++ b/xorg-server/present/present_event.c
@@ -0,0 +1,239 @@
+/*
+ * Copyright © 2013 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#include "present_priv.h"
+
+#include "present_priv.h"
+
+RESTYPE present_event_type;
+
+static int
+present_free_event(pointer data, XID id)
+{
+    present_event_ptr present_event = (present_event_ptr) data;
+    present_window_priv_ptr window_priv = present_window_priv(present_event->window);
+    present_event_ptr *previous, current;
+
+    for (previous = &window_priv->events; (current = *previous); previous = &current->next) {
+        if (current == present_event) {
+            *previous = present_event->next;
+            break;
+        }
+    }
+    free((pointer) present_event);
+    return 1;
+
+}
+
+void
+present_free_events(WindowPtr window)
+{
+    present_window_priv_ptr window_priv = present_window_priv(window);
+    present_event_ptr event;
+
+    if (!window_priv)
+        return;
+
+    while ((event = window_priv->events))
+        FreeResource(event->id, RT_NONE);
+}
+
+static void
+present_event_swap(xGenericEvent *from, xGenericEvent *to)
+{
+    *to = *from;
+    swaps(&to->sequenceNumber);
+    swapl(&to->length);
+    swaps(&to->evtype);
+    switch (from->evtype) {
+    case PresentConfigureNotify: {
+        xPresentConfigureNotify *c = (xPresentConfigureNotify *) to;
+
+        swapl(&c->eid);
+        swapl(&c->window);
+        swaps(&c->x);
+        swaps(&c->y);
+        swaps(&c->width);
+        swaps(&c->height);
+        swaps(&c->off_x);
+        swaps(&c->off_y);
+        swaps(&c->pixmap_width);
+        swaps(&c->pixmap_height);
+        swapl(&c->pixmap_flags);
+        break;
+    }
+    case PresentCompleteNotify:
+    {
+        xPresentCompleteNotify *c = (xPresentCompleteNotify *) to;
+        swapl(&c->eid);
+        swapl(&c->window);
+        swapl(&c->serial);
+        swapll(&c->ust);
+        swapll(&c->msc);
+    }
+    case PresentIdleNotify:
+    {
+        xPresentIdleNotify *c = (xPresentIdleNotify *) to;
+        swapl(&c->eid);
+        swapl(&c->window);
+        swapl(&c->serial);
+        swapl(&c->idle_fence);
+    }
+    }
+}
+
+void
+present_send_config_notify(WindowPtr window, int x, int y, int w, int h, int bw, WindowPtr sibling)
+{
+    present_window_priv_ptr window_priv = present_window_priv(window);
+
+    if (window_priv) {
+        xPresentConfigureNotify cn = {
+            .type = GenericEvent,
+            .extension = present_request,
+            .length = (sizeof(xPresentConfigureNotify) - 32) >> 2,
+            .evtype = PresentConfigureNotify,
+            .eid = 0,
+            .window = window->drawable.id,
+            .x = x,
+            .y = y,
+            .width = w,
+            .height = h,
+            .off_x = 0,
+            .off_y = 0,
+            .pixmap_width = w,
+            .pixmap_height = h,
+            .pixmap_flags = 0
+        };
+        present_event_ptr event;
+
+        for (event = window_priv->events; event; event = event->next) {
+            if (event->mask & (1 << PresentConfigureNotify)) {
+                cn.eid = event->id;
+                WriteEventsToClient(event->client, 1, (xEvent *) &cn);
+            }
+        }
+    }
+}
+
+void
+present_send_complete_notify(WindowPtr window, CARD8 kind, CARD8 mode, CARD32 serial, uint64_t ust, uint64_t msc)
+{
+    present_window_priv_ptr window_priv = present_window_priv(window);
+
+    if (window_priv) {
+        xPresentCompleteNotify cn = {
+            .type = GenericEvent,
+            .extension = present_request,
+            .length = (sizeof(xPresentCompleteNotify) - 32) >> 2,
+            .evtype = PresentCompleteNotify,
+            .kind = kind,
+            .mode = mode,
+            .eid = 0,
+            .window = window->drawable.id,
+            .serial = serial,
+            .ust = ust,
+            .msc = msc,
+        };
+        present_event_ptr event;
+
+        for (event = window_priv->events; event; event = event->next) {
+            if (event->mask & PresentCompleteNotifyMask) {
+                cn.eid = event->id;
+                WriteEventsToClient(event->client, 1, (xEvent *) &cn);
+            }
+        }
+    }
+}
+
+void
+present_send_idle_notify(WindowPtr window, CARD32 serial, PixmapPtr pixmap, struct present_fence *idle_fence)
+{
+    present_window_priv_ptr window_priv = present_window_priv(window);
+
+    if (window_priv) {
+        xPresentIdleNotify in = {
+            .type = GenericEvent,
+            .extension = present_request,
+            .length = (sizeof(xPresentIdleNotify) - 32) >> 2,
+            .evtype = PresentIdleNotify,
+            .eid = 0,
+            .window = window->drawable.id,
+            .serial = serial,
+            .pixmap = pixmap->drawable.id,
+            .idle_fence = present_fence_id(idle_fence)
+        };
+        present_event_ptr event;
+
+        for (event = window_priv->events; event; event = event->next) {
+            if (event->mask & PresentIdleNotifyMask) {
+                in.eid = event->id;
+                WriteEventsToClient(event->client, 1, (xEvent *) &in);
+            }
+        }
+    }
+}
+
+int
+present_select_input(ClientPtr client, XID eid, WindowPtr window, CARD32 mask)
+{
+    present_window_priv_ptr window_priv = present_get_window_priv(window, mask != 0);
+    present_event_ptr event;
+
+    if (!window_priv) {
+        if (mask)
+            return BadAlloc;
+        return Success;
+    }
+
+    event = calloc (1, sizeof (present_event_rec));
+    if (!event)
+        return BadAlloc;
+
+    event->client = client;
+    event->window = window;
+    event->id = eid;
+    event->mask = mask;
+
+    event->next = window_priv->events;
+    window_priv->events = event;
+
+    if (!AddResource(event->id, present_event_type, (pointer) event))
+        return BadAlloc;
+
+    return Success;
+}
+
+Bool
+present_event_init(void)
+{
+    present_event_type = CreateNewResourceType(present_free_event, "PresentEvent");
+    if (!present_event_type)
+        return FALSE;
+
+    GERegisterExtension(present_request, present_event_swap);
+    return TRUE;
+}
diff --git a/xorg-server/present/present_fake.c b/xorg-server/present/present_fake.c
new file mode 100644
index 000000000..a67759254
--- /dev/null
+++ b/xorg-server/present/present_fake.c
@@ -0,0 +1,140 @@
+/*
+ * Copyright © 2013 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#include "present_priv.h"
+#include "list.h"
+
+static struct xorg_list fake_vblank_queue;
+
+typedef struct present_fake_vblank {
+    struct xorg_list            list;
+    uint64_t                    event_id;
+    OsTimerPtr                  timer;
+    ScreenPtr                   screen;
+} present_fake_vblank_rec, *present_fake_vblank_ptr;
+
+int
+present_fake_get_ust_msc(ScreenPtr screen, uint64_t *ust, uint64_t *msc)
+{
+    present_screen_priv_ptr screen_priv = present_screen_priv(screen);
+
+    *ust = GetTimeInMicros();
+    *msc = *ust / screen_priv->fake_interval;
+    return Success;
+}
+
+static void
+present_fake_notify(ScreenPtr screen, uint64_t event_id)
+{
+    uint64_t                    ust, msc;
+
+    present_fake_get_ust_msc(screen, &ust, &msc);
+    present_event_notify(event_id, ust, msc);
+}
+
+static CARD32
+present_fake_do_timer(OsTimerPtr timer,
+                      CARD32 time,
+                      pointer arg)
+{
+    present_fake_vblank_ptr     fake_vblank = arg;
+
+    present_fake_notify(fake_vblank->screen, fake_vblank->event_id);
+    xorg_list_del(&fake_vblank->list);
+    free(fake_vblank);
+    return 0;
+}
+
+void
+present_fake_abort_vblank(ScreenPtr screen, uint64_t event_id, uint64_t msc)
+{
+    present_fake_vblank_ptr     fake_vblank, tmp;
+
+    xorg_list_for_each_entry_safe(fake_vblank, tmp, &fake_vblank_queue, list) {
+        if (fake_vblank->event_id == event_id) {
+            TimerCancel(fake_vblank->timer);
+            xorg_list_del(&fake_vblank->list);
+            free (fake_vblank);
+            break;
+        }
+    }
+}
+
+int
+present_fake_queue_vblank(ScreenPtr     screen,
+                          uint64_t      event_id,
+                          uint64_t      msc)
+{
+    present_screen_priv_ptr     screen_priv = present_screen_priv(screen);
+    uint64_t                    ust = msc * screen_priv->fake_interval;
+    uint64_t                    now = GetTimeInMicros();
+    INT32                       delay = ((int64_t) (ust - now)) / 1000;
+    present_fake_vblank_ptr     fake_vblank;
+
+    if (delay <= 0) {
+        present_fake_notify(screen, event_id);
+        return Success;
+    }
+
+    fake_vblank = calloc (1, sizeof (present_fake_vblank_rec));
+    if (!fake_vblank)
+        return BadAlloc;
+
+    fake_vblank->screen = screen;
+    fake_vblank->event_id = event_id;
+    fake_vblank->timer = TimerSet(NULL, 0, delay, present_fake_do_timer, fake_vblank);
+    if (!fake_vblank->timer) {
+        free(fake_vblank);
+        return BadAlloc;
+    }
+
+    xorg_list_add(&fake_vblank->list, &fake_vblank_queue);
+
+    return Success;
+}
+
+void
+present_fake_screen_init(ScreenPtr screen)
+{
+    present_screen_priv_ptr screen_priv = present_screen_priv(screen);
+
+    /* For screens with hardware vblank support, the fake code
+     * will be used for off-screen windows and while screens are blanked,
+     * in which case we want a slow interval here
+     *
+     * Otherwise, pretend that the screen runs at 60Hz
+     */
+    if (screen_priv->info && screen_priv->info->get_crtc)
+        screen_priv->fake_interval = 1000000;
+    else
+        screen_priv->fake_interval = 16667;
+}
+
+void
+present_fake_queue_init(void)
+{
+    xorg_list_init(&fake_vblank_queue);
+}
diff --git a/xorg-server/present/present_fence.c b/xorg-server/present/present_fence.c
new file mode 100644
index 000000000..db5efcaad
--- /dev/null
+++ b/xorg-server/present/present_fence.c
@@ -0,0 +1,112 @@
+/*
+ * Copyright © 2013 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#include "present_priv.h"
+#include <gcstruct.h>
+#include <misync.h>
+#include <misyncstr.h>
+
+/*
+ * Wraps SyncFence objects so we can add a SyncTrigger to find out
+ * when the SyncFence gets destroyed and clean up appropriately
+ */
+
+struct present_fence {
+    SyncTrigger         trigger;
+    SyncFence           *fence;
+};
+
+/*
+ * SyncTrigger callbacks
+ */
+static Bool
+present_fence_sync_check_trigger(SyncTrigger *trigger, XSyncValue oldval)
+{
+    return FALSE;
+}
+
+static void
+present_fence_sync_trigger_fired(SyncTrigger *trigger)
+{
+}
+
+static void
+present_fence_sync_counter_destroyed(SyncTrigger *trigger)
+{
+    struct present_fence        *present_fence = container_of(trigger, struct present_fence, trigger);
+
+    present_fence->fence = NULL;
+}
+
+struct present_fence *
+present_fence_create(SyncFence *fence)
+{
+    struct present_fence        *present_fence;
+
+    present_fence = calloc (1, sizeof (struct present_fence));
+    if (!present_fence)
+        return NULL;
+
+    present_fence->fence = fence;
+    present_fence->trigger.pSync = (SyncObject *) fence;
+    present_fence->trigger.CheckTrigger = present_fence_sync_check_trigger;
+    present_fence->trigger.TriggerFired = present_fence_sync_trigger_fired;
+    present_fence->trigger.CounterDestroyed = present_fence_sync_counter_destroyed;
+
+    if (SyncAddTriggerToSyncObject(&present_fence->trigger) != Success) {
+        free (present_fence);
+        return NULL;
+    }
+    return present_fence;
+}
+
+void
+present_fence_destroy(struct present_fence *present_fence)
+{
+    if (present_fence) {
+        if (present_fence->fence)
+            SyncDeleteTriggerFromSyncObject(&present_fence->trigger);
+        free(present_fence);
+    }
+}
+
+void
+present_fence_set_triggered(struct present_fence *present_fence)
+{
+    if (present_fence)
+        if (present_fence->fence)
+            (*present_fence->fence->funcs.SetTriggered) (present_fence->fence);
+}
+
+XID
+present_fence_id(struct present_fence *present_fence)
+{
+    if (!present_fence)
+        return None;
+    if (!present_fence->fence)
+        return None;
+    return present_fence->fence->sync.id;
+}
diff --git a/xorg-server/present/present_notify.c b/xorg-server/present/present_notify.c
new file mode 100644
index 000000000..e272e08dc
--- /dev/null
+++ b/xorg-server/present/present_notify.c
@@ -0,0 +1,114 @@
+/*
+ * Copyright © 2013 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#include "present_priv.h"
+
+/*
+ * Mark all pending notifies for 'window' as invalid when
+ * the window is destroyed
+ */
+
+void
+present_clear_window_notifies(WindowPtr window)
+{
+    present_notify_ptr          notify;
+    present_window_priv_ptr     window_priv = present_window_priv(window);
+
+    if (!window_priv)
+        return;
+
+    xorg_list_for_each_entry(notify, &window_priv->notifies, window_list) {
+        notify->window = NULL;
+    }
+}
+
+/*
+ * 'notify' is being freed; remove it from the window's notify list
+ */
+
+void
+present_free_window_notify(present_notify_ptr notify)
+{
+    xorg_list_del(&notify->window_list);
+}
+
+/*
+ * 'notify' is new; add it to the specified window
+ */
+
+int
+present_add_window_notify(present_notify_ptr notify)
+{
+    WindowPtr                   window = notify->window;
+    present_window_priv_ptr     window_priv = present_get_window_priv(window, TRUE);
+
+    if (!window_priv)
+        return BadAlloc;
+
+    xorg_list_add(&notify->window_list, &window_priv->notifies);
+    return Success;
+}
+
+int
+present_create_notifies(ClientPtr client, int num_notifies, xPresentNotify *x_notifies, present_notify_ptr *p_notifies)
+{
+    present_notify_ptr  notifies;
+    int                 i;
+    int                 added = 0;
+    int                 status;
+
+    notifies = calloc (num_notifies, sizeof (present_notify_rec));
+    if (!notifies)
+        return BadAlloc;
+
+    for (i = 0; i < num_notifies; i++) {
+        status = dixLookupWindow(&notifies[i].window, x_notifies[i].window, client, DixGetAttrAccess);
+        if (status != Success)
+            goto bail;
+
+        notifies[i].serial = x_notifies[i].serial;
+        status = present_add_window_notify(&notifies[i]);
+        if (status != Success)
+            goto bail;
+
+        added = i;
+    }
+    return Success;
+
+bail:
+    present_destroy_notifies(notifies, added);
+    return status;
+}
+
+void
+present_destroy_notifies(present_notify_ptr notifies, int num_notifies)
+{
+    int i;
+    for (i = 0; i < num_notifies; i++)
+        present_free_window_notify(&notifies[i]);
+
+    free(notifies);
+}
diff --git a/xorg-server/present/present_priv.h b/xorg-server/present/present_priv.h
new file mode 100644
index 000000000..a92b62a2d
--- /dev/null
+++ b/xorg-server/present/present_priv.h
@@ -0,0 +1,288 @@
+/*
+ * Copyright © 2013 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#ifndef _PRESENT_PRIV_H_
+#define _PRESENT_PRIV_H_
+
+#include <X11/X.h>
+#include "scrnintstr.h"
+#include "misc.h"
+#include "list.h"
+#include "windowstr.h"
+#include "dixstruct.h"
+#include "present.h"
+#include <syncsdk.h>
+#include <syncsrv.h>
+#include <xfixes.h>
+#include <randrstr.h>
+
+extern int present_request;
+
+extern DevPrivateKeyRec present_screen_private_key;
+
+typedef struct present_fence *present_fence_ptr;
+
+typedef struct present_notify present_notify_rec, *present_notify_ptr;
+
+struct present_notify {
+    struct xorg_list    window_list;
+    WindowPtr           window;
+    CARD32              serial;
+};
+
+struct present_vblank {
+    struct xorg_list    window_list;
+    struct xorg_list    event_queue;
+    ScreenPtr           screen;
+    WindowPtr           window;
+    PixmapPtr           pixmap;
+    RegionPtr           valid;
+    RegionPtr           update;
+    RRCrtcPtr           crtc;
+    uint32_t            serial;
+    int16_t             x_off;
+    int16_t             y_off;
+    CARD16              kind;
+    uint64_t            event_id;
+    uint64_t            target_msc;
+    uint64_t            msc_offset;
+    present_fence_ptr   idle_fence;
+    present_fence_ptr   wait_fence;
+    present_notify_ptr  notifies;
+    int                 num_notifies;
+    Bool                flip;
+    Bool                sync_flip;
+    Bool                abort_flip;
+
+    Bool                window_destroyed;
+};
+
+typedef struct present_screen_priv {
+    CloseScreenProcPtr          CloseScreen;
+    ConfigNotifyProcPtr         ConfigNotify;
+    DestroyWindowProcPtr        DestroyWindow;
+    ClipNotifyProcPtr           ClipNotify;
+
+    present_vblank_ptr          flip_pending;
+    uint64_t                    unflip_event_id;
+
+    uint32_t                    fake_interval;
+
+    /* Currently active flipped pixmap and fence */
+    RRCrtcPtr                   flip_crtc;
+    WindowPtr                   flip_window;
+    uint32_t                    flip_serial;
+    PixmapPtr                   flip_pixmap;
+    present_fence_ptr           flip_idle_fence;
+
+    present_screen_info_ptr     info;
+} present_screen_priv_rec, *present_screen_priv_ptr;
+
+#define wrap(priv,real,mem,func) {\
+    priv->mem = real->mem; \
+    real->mem = func; \
+}
+
+#define unwrap(priv,real,mem) {\
+    real->mem = priv->mem; \
+}
+
+static inline present_screen_priv_ptr
+present_screen_priv(ScreenPtr screen)
+{
+    return (present_screen_priv_ptr)dixLookupPrivate(&(screen)->devPrivates, &present_screen_private_key);
+}
+
+/*
+ * Each window has a list of clients and event masks
+ */
+typedef struct present_event *present_event_ptr;
+
+typedef struct present_event {
+    present_event_ptr next;
+    ClientPtr client;
+    WindowPtr window;
+    XID id;
+    int mask;
+} present_event_rec;
+
+typedef struct present_window_priv {
+    present_event_ptr      events;
+    RRCrtcPtr              crtc;        /* Last reported CRTC from get_ust_msc */
+    uint64_t               msc_offset;
+    uint64_t               msc;         /* Last reported MSC from the current crtc */
+    struct xorg_list       vblank;
+    struct xorg_list       notifies;
+} present_window_priv_rec, *present_window_priv_ptr;
+
+extern DevPrivateKeyRec present_window_private_key;
+
+static inline present_window_priv_ptr
+present_window_priv(WindowPtr window)
+{
+    return (present_window_priv_ptr)dixGetPrivate(&(window)->devPrivates, &present_window_private_key);
+}
+
+present_window_priv_ptr
+present_get_window_priv(WindowPtr window, Bool create);
+
+extern RESTYPE present_event_type;
+
+/*
+ * present.c
+ */
+int
+present_pixmap(WindowPtr window,
+               PixmapPtr pixmap,
+               CARD32 serial,
+               RegionPtr valid,
+               RegionPtr update,
+               int16_t x_off,
+               int16_t y_off,
+               RRCrtcPtr target_crtc,
+               SyncFence *wait_fence,
+               SyncFence *idle_fence,
+               uint32_t options,
+               uint64_t target_msc,
+               uint64_t divisor,
+               uint64_t remainder,
+               present_notify_ptr notifies,
+               int num_notifies);
+
+int
+present_notify_msc(WindowPtr window,
+                   CARD32 serial,
+                   uint64_t target_msc,
+                   uint64_t divisor,
+                   uint64_t remainder);
+
+void
+present_abort_vblank(ScreenPtr screen, RRCrtcPtr crtc, uint64_t event_id, uint64_t msc);
+
+void
+present_vblank_destroy(present_vblank_ptr vblank);
+
+void
+present_flip_destroy(ScreenPtr screen);
+
+void
+present_check_flip_window(WindowPtr window);
+
+RRCrtcPtr
+present_get_crtc(WindowPtr window);
+
+uint32_t
+present_query_capabilities(RRCrtcPtr crtc);
+
+Bool
+present_init(void);
+
+/*
+ * present_event.c
+ */
+
+void
+present_free_events(WindowPtr window);
+
+void
+present_send_config_notify(WindowPtr window, int x, int y, int w, int h, int bw, WindowPtr sibling);
+
+void
+present_send_complete_notify(WindowPtr window, CARD8 kind, CARD8 mode, CARD32 serial, uint64_t ust, uint64_t msc);
+
+void
+present_send_idle_notify(WindowPtr window, CARD32 serial, PixmapPtr pixmap, present_fence_ptr idle_fence);
+
+int
+present_select_input(ClientPtr client,
+                     CARD32 eid,
+                     WindowPtr window,
+                     CARD32 event_mask);
+
+Bool
+present_event_init(void);
+
+/*
+ * present_fake.c
+ */
+int
+present_fake_get_ust_msc(ScreenPtr screen, uint64_t *ust, uint64_t *msc);
+
+int
+present_fake_queue_vblank(ScreenPtr screen, uint64_t event_id, uint64_t msc);
+
+void
+present_fake_abort_vblank(ScreenPtr screen, uint64_t event_id, uint64_t msc);
+
+void
+present_fake_screen_init(ScreenPtr screen);
+
+void
+present_fake_queue_init(void);
+
+/*
+ * present_fence.c
+ */
+struct present_fence *
+present_fence_create(SyncFence *sync_fence);
+
+void
+present_fence_destroy(struct present_fence *present_fence);
+
+void
+present_fence_set_triggered(struct present_fence *present_fence);
+
+XID
+present_fence_id(struct present_fence *present_fence);
+
+/*
+ * present_notify.c
+ */
+void
+present_clear_window_notifies(WindowPtr window);
+
+void
+present_free_window_notify(present_notify_ptr notify);
+
+int
+present_add_window_notify(present_notify_ptr notify);
+
+int
+present_create_notifies(ClientPtr client, int num_notifies, xPresentNotify *x_notifies, present_notify_ptr *p_notifies);
+
+void
+present_destroy_notifies(present_notify_ptr notifies, int num_notifies);
+
+/*
+ * present_request.c
+ */
+int
+proc_present_dispatch(ClientPtr client);
+
+int
+sproc_present_dispatch(ClientPtr client);
+
+/*
+ * present_screen.c
+ */
+
+#endif /*  _PRESENT_PRIV_H_ */
diff --git a/xorg-server/present/present_request.c b/xorg-server/present/present_request.c
new file mode 100644
index 000000000..095fa2daf
--- /dev/null
+++ b/xorg-server/present/present_request.c
@@ -0,0 +1,330 @@
+/*
+ * Copyright © 2013 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#include "present_priv.h"
+#include "randrstr.h"
+
+static int
+proc_present_query_version(ClientPtr client)
+{
+    REQUEST(xPresentQueryVersionReq);
+    xPresentQueryVersionReply rep = {
+        .type = X_Reply,
+        .sequenceNumber = client->sequence,
+        .length = 0,
+        .majorVersion = PRESENT_MAJOR,
+        .minorVersion = PRESENT_MINOR
+    };
+
+    REQUEST_SIZE_MATCH(xPresentQueryVersionReq);
+    (void) stuff;
+    if (client->swapped) {
+        swaps(&rep.sequenceNumber);
+        swapl(&rep.length);
+        swapl(&rep.majorVersion);
+        swapl(&rep.minorVersion);
+    }
+    WriteToClient(client, sizeof(rep), &rep);
+    return Success;
+}
+
+#define VERIFY_FENCE_OR_NONE(fence_ptr, fence_id, client, access) do {  \
+        if ((fence_id) == None)                                         \
+            (fence_ptr) = NULL;                                         \
+        else {                                                          \
+            int __rc__ = SyncVerifyFence(&fence_ptr, fence_id, client, access); \
+            if (__rc__ != Success)                                      \
+                return __rc__;                                          \
+        }                                                               \
+    } while (0)
+
+#define VERIFY_CRTC_OR_NONE(crtc_ptr, crtc_id, client, access) do {     \
+        if ((crtc_id) == None)                                          \
+            (crtc_ptr) = NULL;                                          \
+        else {                                                          \
+            VERIFY_RR_CRTC(crtc_id, crtc_ptr, access);                  \
+        }                                                               \
+    } while (0)
+
+static int
+proc_present_pixmap(ClientPtr client)
+{
+    REQUEST(xPresentPixmapReq);
+    WindowPtr           window;
+    PixmapPtr           pixmap;
+    RegionPtr           valid = NULL;
+    RegionPtr           update = NULL;
+    SyncFence           *wait_fence;
+    SyncFence           *idle_fence;
+    RRCrtcPtr           target_crtc;
+    int                 ret;
+    int                 nnotifies;
+    present_notify_ptr  notifies = NULL;
+
+    REQUEST_AT_LEAST_SIZE(xPresentPixmapReq);
+    ret = dixLookupWindow(&window, stuff->window, client, DixWriteAccess);
+    if (ret != Success)
+        return ret;
+    ret = dixLookupResourceByType((pointer *) &pixmap, stuff->pixmap, RT_PIXMAP, client, DixReadAccess);
+    if (ret != Success)
+        return ret;
+
+    if (window->drawable.depth != pixmap->drawable.depth)
+        return BadMatch;
+
+    VERIFY_REGION_OR_NONE(valid, stuff->valid, client, DixReadAccess);
+    VERIFY_REGION_OR_NONE(update, stuff->update, client, DixReadAccess);
+
+    VERIFY_CRTC_OR_NONE(target_crtc, stuff->target_crtc, client, DixReadAccess);
+
+    VERIFY_FENCE_OR_NONE(wait_fence, stuff->wait_fence, client, DixReadAccess);
+    VERIFY_FENCE_OR_NONE(idle_fence, stuff->idle_fence, client, DixWriteAccess);
+
+    if (stuff->options & ~(PresentAllOptions)) {
+        client->errorValue = stuff->options;
+        return BadValue;
+    }
+
+    /*
+     * Check to see if remainder is sane
+     */
+    if (stuff->divisor == 0) {
+        if (stuff->remainder != 0) {
+            client->errorValue = (CARD32) stuff->remainder;
+            return BadValue;
+        }
+    } else {
+        if (stuff->remainder >= stuff->divisor) {
+            client->errorValue = (CARD32) stuff->remainder;
+            return BadValue;
+        }
+    }
+
+    nnotifies = (client->req_len << 2) - sizeof (xPresentPixmapReq);
+    if (nnotifies % sizeof (xPresentNotify))
+        return BadLength;
+
+    nnotifies /= sizeof (xPresentNotify);
+    if (nnotifies) {
+        ret = present_create_notifies(client, nnotifies, (xPresentNotify *) (stuff + 1), &notifies);
+        if (ret != Success)
+            return ret;
+    }
+
+    ret = present_pixmap(window, pixmap, stuff->serial, valid, update,
+                         stuff->x_off, stuff->y_off, target_crtc,
+                         wait_fence, idle_fence, stuff->options,
+                         stuff->target_msc, stuff->divisor, stuff->remainder, notifies, nnotifies);
+    if (ret != Success)
+        present_destroy_notifies(notifies, nnotifies);
+    return ret;
+}
+
+static int
+proc_present_notify_msc(ClientPtr client)
+{
+    REQUEST(xPresentNotifyMSCReq);
+    WindowPtr   window;
+    int         rc;
+
+    REQUEST_SIZE_MATCH(xPresentNotifyMSCReq);
+    rc = dixLookupWindow(&window, stuff->window, client, DixReadAccess);
+    if (rc != Success)
+        return rc;
+
+    /*
+     * Check to see if remainder is sane
+     */
+    if (stuff->divisor == 0) {
+        if (stuff->remainder != 0) {
+            client->errorValue = (CARD32) stuff->remainder;
+            return BadValue;
+        }
+    } else {
+        if (stuff->remainder >= stuff->divisor) {
+            client->errorValue = (CARD32) stuff->remainder;
+            return BadValue;
+        }
+    }
+
+    return present_notify_msc(window, stuff->serial,
+                              stuff->target_msc, stuff->divisor, stuff->remainder);
+}
+
+static int
+proc_present_select_input (ClientPtr client)
+{
+    REQUEST(xPresentSelectInputReq);
+    WindowPtr window;
+    int rc;
+
+    REQUEST_SIZE_MATCH(xPresentSelectInputReq);
+
+    LEGAL_NEW_RESOURCE(stuff->eid, client);
+
+    rc = dixLookupWindow(&window, stuff->window, client, DixGetAttrAccess);
+    if (rc != Success)
+        return rc;
+
+    if (stuff->eventMask & ~PresentAllEvents) {
+        client->errorValue = stuff->eventMask;
+        return BadValue;
+    }
+    return present_select_input(client, stuff->eid, window, stuff->eventMask);
+}
+
+static int
+proc_present_query_capabilities (ClientPtr client)
+{
+    REQUEST(xPresentQueryCapabilitiesReq);
+    xPresentQueryCapabilitiesReply rep = {
+        .type = X_Reply,
+        .sequenceNumber = client->sequence,
+        .length = 0,
+    };
+    WindowPtr   window;
+    RRCrtcPtr   crtc = NULL;
+    int         r;
+
+    r = dixLookupWindow(&window, stuff->target, client, DixGetAttrAccess);
+    switch (r) {
+    case Success:
+        crtc = present_get_crtc(window);
+        break;
+    case BadWindow:
+        VERIFY_RR_CRTC(stuff->target, crtc, DixGetAttrAccess);
+        break;
+    default:
+        return r;
+    }
+
+    rep.capabilities = present_query_capabilities(crtc);
+
+    if (client->swapped) {
+        swaps(&rep.sequenceNumber);
+        swapl(&rep.length);
+        swapl(&rep.capabilities);
+    }
+    WriteToClient(client, sizeof(rep), &rep);
+    return Success;
+}
+
+int (*proc_present_vector[PresentNumberRequests]) (ClientPtr) = {
+    proc_present_query_version,            /* 0 */
+    proc_present_pixmap,                   /* 1 */
+    proc_present_notify_msc,               /* 2 */
+    proc_present_select_input,             /* 3 */
+    proc_present_query_capabilities,       /* 4 */
+};
+
+int
+proc_present_dispatch(ClientPtr client)
+{
+    REQUEST(xReq);
+    if (stuff->data >= PresentNumberRequests || !proc_present_vector[stuff->data])
+        return BadRequest;
+    return (*proc_present_vector[stuff->data]) (client);
+}
+
+static int
+sproc_present_query_version(ClientPtr client)
+{
+    REQUEST(xPresentQueryVersionReq);
+
+    swaps(&stuff->length);
+    swapl(&stuff->majorVersion);
+    swapl(&stuff->minorVersion);
+    return (*proc_present_vector[stuff->presentReqType]) (client);
+}
+
+static int
+sproc_present_pixmap(ClientPtr client)
+{
+    REQUEST(xPresentPixmapReq);
+
+    swaps(&stuff->length);
+    swapl(&stuff->window);
+    swapl(&stuff->pixmap);
+    swapl(&stuff->valid);
+    swapl(&stuff->update);
+    swaps(&stuff->x_off);
+    swaps(&stuff->y_off);
+    swapll(&stuff->target_msc);
+    swapll(&stuff->divisor);
+    swapll(&stuff->remainder);
+    swapl(&stuff->idle_fence);
+    return (*proc_present_vector[stuff->presentReqType]) (client);
+}
+
+static int
+sproc_present_notify_msc(ClientPtr client)
+{
+    REQUEST(xPresentNotifyMSCReq);
+
+    swaps(&stuff->length);
+    swapl(&stuff->window);
+    swapll(&stuff->target_msc);
+    swapll(&stuff->divisor);
+    swapll(&stuff->remainder);
+    return (*proc_present_vector[stuff->presentReqType]) (client);
+}
+
+static int
+sproc_present_select_input (ClientPtr client)
+{
+    REQUEST(xPresentSelectInputReq);
+
+    swaps(&stuff->length);
+    swapl(&stuff->window);
+    swapl(&stuff->eventMask);
+    return (*proc_present_vector[stuff->presentReqType]) (client);
+}
+
+static int
+sproc_present_query_capabilities (ClientPtr client)
+{
+    REQUEST(xPresentQueryCapabilitiesReq);
+    swaps(&stuff->length);
+    swapl(&stuff->target);
+    return (*proc_present_vector[stuff->presentReqType]) (client);
+}
+
+int (*sproc_present_vector[PresentNumberRequests]) (ClientPtr) = {
+    sproc_present_query_version,           /* 0 */
+    sproc_present_pixmap,                  /* 1 */
+    sproc_present_notify_msc,              /* 2 */
+    sproc_present_select_input,            /* 3 */
+    sproc_present_query_capabilities,      /* 4 */
+};
+
+int
+sproc_present_dispatch(ClientPtr client)
+{
+    REQUEST(xReq);
+    if (stuff->data >= PresentNumberRequests || !sproc_present_vector[stuff->data])
+        return BadRequest;
+    return (*sproc_present_vector[stuff->data]) (client);
+}
diff --git a/xorg-server/present/present_screen.c b/xorg-server/present/present_screen.c
new file mode 100644
index 000000000..50b2b2d23
--- /dev/null
+++ b/xorg-server/present/present_screen.c
@@ -0,0 +1,231 @@
+/*
+ * Copyright © 2013 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#include "present_priv.h"
+
+int present_request;
+DevPrivateKeyRec present_screen_private_key;
+DevPrivateKeyRec present_window_private_key;
+
+/*
+ * Get a pointer to a present window private, creating if necessary
+ */
+present_window_priv_ptr
+present_get_window_priv(WindowPtr window, Bool create)
+{
+    present_window_priv_ptr window_priv = present_window_priv(window);
+
+    if (!create || window_priv != NULL)
+        return window_priv;
+    window_priv = calloc (1, sizeof (present_window_priv_rec));
+    if (!window_priv)
+        return NULL;
+    xorg_list_init(&window_priv->vblank);
+    xorg_list_init(&window_priv->notifies);
+    dixSetPrivate(&window->devPrivates, &present_window_private_key, window_priv);
+    return window_priv;
+}
+
+/*
+ * Hook the close screen function to clean up our screen private
+ */
+static Bool
+present_close_screen(ScreenPtr screen)
+{
+    present_screen_priv_ptr screen_priv = present_screen_priv(screen);
+
+    present_flip_destroy(screen);
+
+    unwrap(screen_priv, screen, CloseScreen);
+    (*screen->CloseScreen) (screen);
+    free(screen_priv);
+    return TRUE;
+}
+
+/*
+ * Free any queued presentations for this window
+ */
+static void
+present_free_window_vblank(WindowPtr window)
+{
+    present_window_priv_ptr     window_priv = present_window_priv(window);
+    present_vblank_ptr          vblank, tmp;
+
+    xorg_list_for_each_entry_safe(vblank, tmp, &window_priv->vblank, window_list) {
+        present_abort_vblank(window->drawable.pScreen, vblank->crtc, vblank->event_id, vblank->target_msc);
+        present_vblank_destroy(vblank);
+    }
+}
+
+/*
+ * Clean up any pending or current flips for this window
+ */
+static void
+present_clear_window_flip(WindowPtr window)
+{
+    ScreenPtr                   screen = window->drawable.pScreen;
+    present_screen_priv_ptr     screen_priv = present_screen_priv(screen);
+    present_vblank_ptr          flip_pending = screen_priv->flip_pending;
+
+    if (flip_pending && flip_pending->window == window) {
+        assert (flip_pending->abort_flip);
+        flip_pending->window_destroyed = TRUE;
+    }
+    if (screen_priv->flip_window == window)
+        screen_priv->flip_window = NULL;
+}
+
+/*
+ * Hook the close window function to clean up our window private
+ */
+static Bool
+present_destroy_window(WindowPtr window)
+{
+    Bool ret;
+    ScreenPtr screen = window->drawable.pScreen;
+    present_screen_priv_ptr screen_priv = present_screen_priv(screen);
+    present_window_priv_ptr window_priv = present_window_priv(window);
+
+    if (window_priv) {
+        present_clear_window_notifies(window);
+        present_free_events(window);
+        present_free_window_vblank(window);
+        present_clear_window_flip(window);
+        free(window_priv);
+    }
+    unwrap(screen_priv, screen, DestroyWindow);
+    if (screen->DestroyWindow)
+        ret = screen->DestroyWindow (window);
+    else
+        ret = TRUE;
+    wrap(screen_priv, screen, DestroyWindow, present_destroy_window);
+    return ret;
+}
+
+/*
+ * Hook the config notify screen function to deliver present config notify events
+ */
+static int
+present_config_notify(WindowPtr window,
+                   int x, int y, int w, int h, int bw,
+                   WindowPtr sibling)
+{
+    int ret;
+    ScreenPtr screen = window->drawable.pScreen;
+    present_screen_priv_ptr screen_priv = present_screen_priv(screen);
+
+    present_send_config_notify(window, x, y, w, h, bw, sibling);
+
+    unwrap(screen_priv, screen, ConfigNotify);
+    if (screen->ConfigNotify)
+        ret = screen->ConfigNotify (window, x, y, w, h, bw, sibling);
+    else
+        ret = 0;
+    wrap(screen_priv, screen, ConfigNotify, present_config_notify);
+    return ret;
+}
+
+/*
+ * Hook the clip notify screen function to un-flip as necessary
+ */
+
+static void
+present_clip_notify(WindowPtr window, int dx, int dy)
+{
+    ScreenPtr screen = window->drawable.pScreen;
+    present_screen_priv_ptr screen_priv = present_screen_priv(screen);
+
+    present_check_flip_window(window);
+    unwrap(screen_priv, screen, ClipNotify)
+    if (screen->ClipNotify)
+        screen->ClipNotify (window, dx, dy);
+    wrap(screen_priv, screen, ClipNotify, present_clip_notify);
+}
+
+/*
+ * Initialize a screen for use with present
+ */
+int
+present_screen_init(ScreenPtr screen, present_screen_info_ptr info)
+{
+    if (!dixRegisterPrivateKey(&present_screen_private_key, PRIVATE_SCREEN, 0))
+        return FALSE;
+
+    if (!dixRegisterPrivateKey(&present_window_private_key, PRIVATE_WINDOW, 0))
+        return FALSE;
+
+    if (!present_screen_priv(screen)) {
+        present_screen_priv_ptr screen_priv = calloc(1, sizeof (present_screen_priv_rec));
+        if (!screen_priv)
+            return FALSE;
+
+        wrap(screen_priv, screen, CloseScreen, present_close_screen);
+        wrap(screen_priv, screen, DestroyWindow, present_destroy_window);
+        wrap(screen_priv, screen, ConfigNotify, present_config_notify);
+        wrap(screen_priv, screen, ClipNotify, present_clip_notify);
+
+        screen_priv->info = info;
+
+        dixSetPrivate(&screen->devPrivates, &present_screen_private_key, screen_priv);
+
+        present_fake_screen_init(screen);
+    }
+
+    return TRUE;
+}
+
+/*
+ * Initialize the present extension
+ */
+void
+present_extension_init(void)
+{
+    ExtensionEntry *extension;
+    int i;
+
+    extension = AddExtension(PRESENT_NAME, PresentNumberEvents, PresentNumberErrors,
+                             proc_present_dispatch, sproc_present_dispatch,
+                             NULL, StandardMinorOpcode);
+    if (!extension)
+        goto bail;
+
+    present_request = extension->base;
+
+    if (!present_init())
+        goto bail;
+
+    if (!present_event_init())
+        goto bail;
+
+    for (i = 0; i < screenInfo.numScreens; i++) {
+        if (!present_screen_init(screenInfo.screens[i], NULL))
+            goto bail;
+    }
+    return;
+
+bail:
+    FatalError("Cannot initialize Present extension");
+}
diff --git a/xorg-server/present/presentext.h b/xorg-server/present/presentext.h
new file mode 100644
index 000000000..f177f55dc
--- /dev/null
+++ b/xorg-server/present/presentext.h
@@ -0,0 +1,29 @@
+/*
+ * Copyright © 2013 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#ifndef _PRESENTEXT_H_
+#define _PRESENTEXT_H_
+
+extern _X_EXPORT void
+present_extension_init(void);
+
+#endif /* _PRESENTEXT_H_ */
diff --git a/xorg-server/test/Makefile.am b/xorg-server/test/Makefile.am
index eff0c9d81..e59c412ee 100644
--- a/xorg-server/test/Makefile.am
+++ b/xorg-server/test/Makefile.am
@@ -19,7 +19,7 @@ AM_CPPFLAGS += -I$(top_srcdir)/hw/xfree86/parser \
 	-I$(top_srcdir)/hw/xfree86/ddc \
 	-I$(top_srcdir)/hw/xfree86/i2c -I$(top_srcdir)/hw/xfree86/modes \
 	-I$(top_srcdir)/hw/xfree86/ramdac -I$(top_srcdir)/hw/xfree86/dri \
-	-I$(top_srcdir)/hw/xfree86/dri2
+	-I$(top_srcdir)/hw/xfree86/dri2 -I$(top_srcdir)/dri3
 endif
 TEST_LDADD=libxservertest.la $(XORG_SYS_LIBS) $(XSERVER_SYS_LIBS) $(GLX_SYS_LIBS)
 
@@ -64,6 +64,10 @@ if DRI2
 libxservertest_la_LIBADD += $(top_builddir)/hw/xfree86/dri2/libdri2.la
 endif
 
+if DRI3
+libxservertest_la_LIBADD += $(top_builddir)/dri3/libdri3.la
+endif
+
 else
 nodist_libxservertest_la_SOURCES = \
             ddxstubs.c \
@@ -105,6 +109,11 @@ libxservertest_la_LIBADD += \
             $(top_builddir)/record/librecord.la
 endif
 
+if DRI3
+libxservertest_la_LIBADD += \
+            $(top_builddir)/dri3/libdri3.la
+endif
+
 if XQUARTZ
 libxservertest_la_LIBADD += \
             $(top_builddir)/miext/rootless/librootless.la