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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-01-08 16:24:38 +1100
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-01-08 16:24:38 +1100
commit24f030175d30f019be41766cdf88c2ff03de19ff (patch)
tree354232a84e82d5a721ed7b1a9af580ff2a59be8f /arch/xtensa/include/asm/shmbuf.h
parent4aa12f7b927c3cac0e0cf3503642597527d0ece0 (diff)
parent9e42d0cf5020aaf217433cad1a224745241d212a (diff)
Merge commit 'origin/master' into next
Diffstat (limited to 'arch/xtensa/include/asm/shmbuf.h')
-rw-r--r--arch/xtensa/include/asm/shmbuf.h71
1 files changed, 71 insertions, 0 deletions
diff --git a/arch/xtensa/include/asm/shmbuf.h b/arch/xtensa/include/asm/shmbuf.h
new file mode 100644
index 00000000000..ad4b0121782
--- /dev/null
+++ b/arch/xtensa/include/asm/shmbuf.h
@@ -0,0 +1,71 @@
+/*
+ * include/asm-xtensa/shmbuf.h
+ *
+ * The shmid64_ds structure for 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.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_SHMBUF_H
+#define _XTENSA_SHMBUF_H
+
+#if defined (__XTENSA_EL__)
+struct shmid64_ds {
+ struct ipc64_perm shm_perm; /* operation perms */
+ size_t shm_segsz; /* size of segment (bytes) */
+ __kernel_time_t shm_atime; /* last attach time */
+ unsigned long __unused1;
+ __kernel_time_t shm_dtime; /* last detach time */
+ unsigned long __unused2;
+ __kernel_time_t shm_ctime; /* last change time */
+ unsigned long __unused3;
+ __kernel_pid_t shm_cpid; /* pid of creator */
+ __kernel_pid_t shm_lpid; /* pid of last operator */
+ unsigned long shm_nattch; /* no. of current attaches */
+ unsigned long __unused4;
+ unsigned long __unused5;
+};
+#elif defined (__XTENSA_EB__)
+struct shmid64_ds {
+ struct ipc64_perm shm_perm; /* operation perms */
+ size_t shm_segsz; /* size of segment (bytes) */
+ __kernel_time_t shm_atime; /* last attach time */
+ unsigned long __unused1;
+ __kernel_time_t shm_dtime; /* last detach time */
+ unsigned long __unused2;
+ __kernel_time_t shm_ctime; /* last change time */
+ unsigned long __unused3;
+ __kernel_pid_t shm_cpid; /* pid of creator */
+ __kernel_pid_t shm_lpid; /* pid of last operator */
+ unsigned long shm_nattch; /* no. of current attaches */
+ unsigned long __unused4;
+ unsigned long __unused5;
+};
+#else
+# error endian order not defined
+#endif
+
+
+struct shminfo64 {
+ unsigned long shmmax;
+ unsigned long shmmin;
+ unsigned long shmmni;
+ unsigned long shmseg;
+ unsigned long shmall;
+ unsigned long __unused1;
+ unsigned long __unused2;
+ unsigned long __unused3;
+ unsigned long __unused4;
+};
+
+#endif /* _XTENSA_SHMBUF_H */