[PATCH] xtensa: Architecture support for Tensilica Xtensa Part 6

The attached patches provides part 6 of an architecture implementation for the
Tensilica Xtensa CPU series.

Signed-off-by: Chris Zankel <chris@zankel.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 48 insertions, 0 deletions

diff --git a/include/asm-xtensa/msgbuf.h b/include/asm-xtensa/msgbuf.h
new file mode 100644
index 000000000000..693c96755280
--- /dev/null
+++ b/include/asm-xtensa/msgbuf.h
@@ -0,0 +1,48 @@
+/*
+ * include/asm-xtensa/msgbuf.h
+ *
+ * The msqid64_ds structure for the Xtensa architecture.
+ * Note extra padding because this structure is passed back and forth
+ * between kernel and user space.
+ *
+ * Pad space is left for:
+ * - 64-bit time_t to solve y2038 problem
+ * - 2 miscellaneous 32-bit values
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License.  See the file "COPYING" in the main directory of
+ * this archive for more details.
+ */
+
+#ifndef _XTENSA_MSGBUF_H
+#define _XTENSA_MSGBUF_H
+
+struct msqid64_ds {
+        struct ipc64_perm msg_perm;
+#ifdef __XTENSA_EB__
+        unsigned int    __unused1;
+        __kernel_time_t msg_stime;      /* last msgsnd time */
+        unsigned int    __unused2;
+        __kernel_time_t msg_rtime;      /* last msgrcv time */
+        unsigned int    __unused3;
+        __kernel_time_t msg_ctime;      /* last change time */
+#elif defined(__XTENSA_EL__)
+        __kernel_time_t msg_stime;      /* last msgsnd time */
+        unsigned int    __unused1;
+        __kernel_time_t msg_rtime;      /* last msgrcv time */
+        unsigned int    __unused2;
+        __kernel_time_t msg_ctime;      /* last change time */
+        unsigned int    __unused3;
+#else
+# error processor byte order undefined!
+#endif
+        unsigned long  msg_cbytes;      /* current number of bytes on queue */
+        unsigned long  msg_qnum;        /* number of messages in queue */
+        unsigned long  msg_qbytes;      /* max number of bytes on queue */
+        __kernel_pid_t msg_lspid;       /* pid of last msgsnd */
+        __kernel_pid_t msg_lrpid;       /* last receive pid */
+        unsigned long  __unused4;
+        unsigned long  __unused5;
+};
+
+#endif  /* _XTENSA_MSGBUF_H */