[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, 80 insertions, 0 deletions

diff --git a/include/asm-xtensa/mman.h b/include/asm-xtensa/mman.h
new file mode 100644
index 000000000000..9a95a45df996
--- /dev/null
+++ b/include/asm-xtensa/mman.h
@@ -0,0 +1,80 @@
+/*
+ * include/asm-xtensa/mman.h
+ *
+ * Xtensa Processor memory-manager definitions
+ *
+ * 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) 1995 by Ralf Baechle
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_MMAN_H
+#define _XTENSA_MMAN_H
+
+/*
+ * Protections are chosen from these bits, OR'd together.  The
+ * implementation does not necessarily support PROT_EXEC or PROT_WRITE
+ * without PROT_READ.  The only guarantees are that no writing will be
+ * allowed without PROT_WRITE and no access will be allowed for PROT_NONE.
+ */
+
+#define PROT_NONE       0x0             /* page can not be accessed */
+#define PROT_READ       0x1             /* page can be read */
+#define PROT_WRITE      0x2             /* page can be written */
+#define PROT_EXEC       0x4             /* page can be executed */
+
+#define PROT_SEM        0x10            /* page may be used for atomic ops */
+#define PROT_GROWSDOWN  0x01000000      /* mprotect flag: extend change to start of growsdown vma */
+#define PROT_GROWSUP    0x02000000      /* mprotect flag: extend change to end fo growsup vma */
+
+/*
+ * Flags for mmap
+ */
+#define MAP_SHARED      0x001           /* Share changes */
+#define MAP_PRIVATE     0x002           /* Changes are private */
+#define MAP_TYPE        0x00f           /* Mask for type of mapping */
+#define MAP_FIXED       0x010           /* Interpret addr exactly */
+
+/* not used by linux, but here to make sure we don't clash with ABI defines */
+#define MAP_RENAME      0x020           /* Assign page to file */
+#define MAP_AUTOGROW    0x040           /* File may grow by writing */
+#define MAP_LOCAL       0x080           /* Copy on fork/sproc */
+#define MAP_AUTORSRV    0x100           /* Logical swap reserved on demand */
+
+/* These are linux-specific */
+#define MAP_NORESERVE   0x0400          /* don't check for reservations */
+#define MAP_ANONYMOUS   0x0800          /* don't use a file */
+#define MAP_GROWSDOWN   0x1000          /* stack-like segment */
+#define MAP_DENYWRITE   0x2000          /* ETXTBSY */
+#define MAP_EXECUTABLE  0x4000          /* mark it as an executable */
+#define MAP_LOCKED      0x8000          /* pages are locked */
+#define MAP_POPULATE    0x10000         /* populate (prefault) pagetables */
+#define MAP_NONBLOCK    0x20000         /* do not block on IO */
+
+/*
+ * Flags for msync
+ */
+#define MS_ASYNC        0x0001          /* sync memory asynchronously */
+#define MS_INVALIDATE   0x0002          /* invalidate mappings & caches */
+#define MS_SYNC         0x0004          /* synchronous memory sync */
+
+/*
+ * Flags for mlockall
+ */
+#define MCL_CURRENT     1               /* lock all current mappings */
+#define MCL_FUTURE      2               /* lock all future mappings */
+
+#define MADV_NORMAL     0x0             /* default page-in behavior */
+#define MADV_RANDOM     0x1             /* page-in minimum required */
+#define MADV_SEQUENTIAL 0x2             /* read-ahead aggressively */
+#define MADV_WILLNEED   0x3             /* pre-fault pages */
+#define MADV_DONTNEED   0x4             /* discard these pages */
+
+/* compatibility flags */
+#define MAP_ANON       MAP_ANONYMOUS
+#define MAP_FILE       0
+
+#endif /* _XTENSA_MMAN_H */