diff --git a/qnx/src/ipc3x_dev/tiler/resmgr/tiler/mmap_peer.c b/qnx/src/ipc3x_dev/tiler/resmgr/tiler/mmap_peer.c
--- /dev/null
@@ -0,0 +1,230 @@
+/*
+ * $QNXLicenseC$
+*/
+/*
+ * Copyright (c) 2010, Texas Instruments Incorporated
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Texas Instruments Incorporated nor the names of
+ * its contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * */
+/*
+* mmap_peer/munmap_peer implementation PR47400
+*/
+
+#include <unistd.h>
+#include <errno.h>
+#include <inttypes.h>
+#include <sys/mman.h>
+#include <sys/memmsg.h>
+
+#include "proto.h"
+
+
+int memmgr_peer_sendnc( pid_t pid, int coid, void *smsg, size_t sbytes, void *rmsg, size_t rbytes )
+{
+ mem_peer_t peer;
+ iov_t siov[2];
+
+ peer.i.type = _MEM_PEER;
+ peer.i.peer_msg_len = sizeof(peer);
+ peer.i.pid = pid;
+
+ SETIOV(siov + 0, &peer, sizeof peer);
+ SETIOV(siov + 1, smsg, sbytes);
+ return MsgSendvsnc( coid, siov, 2, rmsg, rbytes );
+}
+
+void *
+_mmap2_peer(pid_t pid, void *addr, size_t len, int prot, int flags, int fd, off64_t off,
+ unsigned align, unsigned pre_load, void **base, size_t *size) {
+ mem_map_t msg;
+
+ msg.i.type = _MEM_MAP;
+ msg.i.zero = 0;
+ msg.i.addr = (uintptr_t)addr;
+ msg.i.len = len;
+ msg.i.prot = prot;
+ msg.i.flags = flags;
+ msg.i.fd = fd;
+ msg.i.offset = off;
+ msg.i.align = align;
+ msg.i.preload = pre_load;
+ msg.i.reserved1 = 0;
+ if(memmgr_peer_sendnc(pid, MEMMGR_COID, &msg.i, sizeof msg.i, &msg.o, sizeof msg.o) == -1) {
+ return MAP_FAILED;
+ }
+ if(base) {
+ *base = (void *)(uintptr_t)msg.o.real_addr;
+ }
+ if(size) {
+ *size = msg.o.real_size;
+ }
+ return (void *)(uintptr_t)msg.o.addr;
+}
+
+
+void *
+mmap64_peer(pid_t pid, void *addr, size_t len, int prot, int flags, int fd, off64_t off) {
+ return _mmap2_peer(pid, addr, len, prot, flags, fd, off, 0, 0, 0, 0);
+}
+
+
+// Make an unsigned version of the 'off_t' type so that we get a zero
+// extension down below.
+#if __OFF_BITS__ == 32
+ typedef _Uint32t uoff_t;
+#elif __OFF_BITS__ == 64
+ typedef _Uint64t uoff_t;
+#else
+ #error Do not know what size to make uoff_t
+#endif
+
+void *
+mmap_peer(pid_t pid, void *addr, size_t len, int prot, int flags, int fd, off_t off) {
+ return _mmap2_peer(pid, addr, len, prot, flags, fd, (uoff_t)off, 0, 0, 0, 0);
+}
+
+int
+munmap_flags_peer(pid_t pid, void *addr, size_t len, unsigned flags) {
+ mem_ctrl_t msg;
+
+ msg.i.type = _MEM_CTRL;
+ msg.i.subtype = _MEM_CTRL_UNMAP;
+ msg.i.addr = (uintptr_t)addr;
+ msg.i.len = len;
+ msg.i.flags = flags;
+ return memmgr_peer_sendnc(pid, MEMMGR_COID, &msg.i, sizeof msg.i, 0, 0);
+}
+
+int
+munmap_peer(pid_t pid, void *addr, size_t len) {
+ return munmap_flags_peer(pid, addr, len, 0);
+}
+
+int
+mem_offset64_peer(pid_t pid, const uintptr_t addr, size_t len,
+ off64_t *offset, size_t *contig_len) {
+ struct _peer_mem_off {
+ struct _mem_peer peer;
+ struct _mem_offset msg;
+ };
+ typedef union {
+ struct _peer_mem_off i;
+ struct _mem_offset_reply o;
+ } memoffset_peer_t;
+ memoffset_peer_t msg;
+
+ msg.i.peer.type = _MEM_PEER;
+ msg.i.peer.peer_msg_len = sizeof(msg.i.peer);
+ msg.i.peer.pid = pid;
+ msg.i.peer.reserved1 = 0;
+
+ msg.i.msg.type = _MEM_OFFSET;
+ msg.i.msg.subtype = _MEM_OFFSET_PHYS;
+ msg.i.msg.addr = addr;
+ msg.i.msg.reserved = -1;
+ msg.i.msg.len = len;
+ if(MsgSendnc(MEMMGR_COID, &msg.i, sizeof msg.i, &msg.o, sizeof msg.o) == -1) {
+ return -1;
+ }
+ *offset = msg.o.offset;
+ *contig_len = msg.o.size;
+ return(0);
+}
+
+
+#if defined(__X86__)
+#define CPU_VADDR_SERVER_HINT 0x30000000u
+#elif defined(__ARM__)
+#define CPU_VADDR_SERVER_HINT 0x20000000u
+#else
+#error NO CPU SOUP FOR YOU!
+#endif
+
+/*
+ * map the object into both client and server at the same virtual address
+ */
+void *
+mmap64_join(pid_t pid, void *addr, size_t len, int prot, int flags, int fd, off64_t off) {
+ void *svaddr, *cvaddr = MAP_FAILED;
+ uintptr_t hint = (uintptr_t)addr;
+ uintptr_t start_hint = hint;
+
+ if ( hint == 0 ) hint = (uintptr_t)CPU_VADDR_SERVER_HINT;
+
+ do {
+ svaddr = mmap64( (void *)hint, len, prot, flags, fd, off );
+ if ( svaddr == MAP_FAILED ) {
+ break;
+ }
+ if ( svaddr == cvaddr ) {
+ return svaddr;
+ }
+
+ cvaddr = mmap64_peer( pid, svaddr, len, prot, flags, fd, off );
+ if ( cvaddr == MAP_FAILED ) {
+ break;
+ }
+ if ( svaddr == cvaddr ) {
+ return svaddr;
+ }
+
+ if ( munmap( svaddr, len ) == -1 ) {
+ svaddr = MAP_FAILED;
+ break;
+ }
+
+ svaddr = mmap64( cvaddr, len, prot, flags, fd, off );
+ if ( svaddr == MAP_FAILED ) {
+ break;
+ }
+ if ( svaddr == cvaddr ) {
+ return svaddr;
+ }
+
+ if ( munmap( svaddr, len ) == -1 ) {
+ svaddr = MAP_FAILED;
+ break;
+ }
+ if ( munmap_peer( pid, cvaddr, len ) == -1 ) {
+ cvaddr = MAP_FAILED;
+ break;
+ }
+
+ hint += __PAGESIZE;
+
+ } while(hint != start_hint); /* do we really want to wrap all the way */
+
+ if ( svaddr != MAP_FAILED ) {
+ munmap( svaddr, len );
+ }
+ if ( cvaddr != MAP_FAILED ) {
+ munmap_peer( pid, cvaddr, len );
+ }
+ return MAP_FAILED;
+}