50 files changed, 1801 insertions, 0 deletions

diff --git a/arch/xtensa/boot/ramdisk/Makefile b/arch/xtensa/boot/ramdisk/Makefile
new file mode 100644
index 00000000000..b12f7635243
--- /dev/null
+++ b/arch/xtensa/boot/ramdisk/Makefile
@@ -0,0 +1,23 @@
+#
+# Makefile for a ramdisk image
+#
+
+BIG_ENDIAN      := $(shell echo -e "\#ifdef __XTENSA_EL__\nint little;\n\#else\nint big;\n\#endif" | $(CC) -E -|grep -c big)
+
+ifeq ($(BIG_ENDIAN),1)
+OBJCOPY_ARGS    := -O elf32-xtensa-be
+else
+OBJCOPY_ARGS    := -O elf32-xtensa-le
+endif
+
+obj-y = ramdisk.o
+
+RAMDISK_IMAGE = arch/$(ARCH)/boot/ramdisk/$(CONFIG_EMBEDDED_RAMDISK_IMAGE)
+
+arch/$(ARCH)/boot/ramdisk/ramdisk.o:
+        $(Q)echo -e "dummy:" | $(AS) -o $@;
+        $(Q)$(OBJCOPY) $(OBJCOPY_ARGS)                                      \
+                --add-section .initrd=$(RAMDISK_IMAGE)                      \
+                --set-section-flags .initrd=contents,alloc,load,load,data   \
+                arch/$(ARCH)/boot/ramdisk/ramdisk.o $@
+
diff --git a/arch/xtensa/include/asm/auxvec.h b/arch/xtensa/include/asm/auxvec.h
new file mode 100644
index 00000000000..257dec75c5a
--- /dev/null
+++ b/arch/xtensa/include/asm/auxvec.h
@@ -0,0 +1,4 @@
+#ifndef __XTENSA_AUXVEC_H
+#define __XTENSA_AUXVEC_H
+
+#endif
diff --git a/arch/xtensa/include/asm/bitsperlong.h b/arch/xtensa/include/asm/bitsperlong.h
new file mode 100644
index 00000000000..6dc0bb0c13b
--- /dev/null
+++ b/arch/xtensa/include/asm/bitsperlong.h
@@ -0,0 +1 @@
+#include <asm-generic/bitsperlong.h>
diff --git a/arch/xtensa/include/asm/bug.h b/arch/xtensa/include/asm/bug.h
new file mode 100644
index 00000000000..3e52d72712f
--- /dev/null
+++ b/arch/xtensa/include/asm/bug.h
@@ -0,0 +1,18 @@
+/*
+ * include/asm-xtensa/bug.h
+ *
+ * Macros to cause a 'bug' message.
+ *
+ * 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_BUG_H
+#define _XTENSA_BUG_H
+
+#include <asm-generic/bug.h>
+
+#endif  /* _XTENSA_BUG_H */
diff --git a/arch/xtensa/include/asm/byteorder.h b/arch/xtensa/include/asm/byteorder.h
new file mode 100644
index 00000000000..54eb6315349
--- /dev/null
+++ b/arch/xtensa/include/asm/byteorder.h
@@ -0,0 +1,12 @@
+#ifndef _XTENSA_BYTEORDER_H
+#define _XTENSA_BYTEORDER_H
+
+#ifdef __XTENSA_EL__
+#include <linux/byteorder/little_endian.h>
+#elif defined(__XTENSA_EB__)
+#include <linux/byteorder/big_endian.h>
+#else
+# error processor byte order undefined!
+#endif
+
+#endif /* _XTENSA_BYTEORDER_H */
diff --git a/arch/xtensa/include/asm/cpumask.h b/arch/xtensa/include/asm/cpumask.h
new file mode 100644
index 00000000000..ebeede397db
--- /dev/null
+++ b/arch/xtensa/include/asm/cpumask.h
@@ -0,0 +1,16 @@
+/*
+ * include/asm-xtensa/cpumask.h
+ *
+ * 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_CPUMASK_H
+#define _XTENSA_CPUMASK_H
+
+#include <asm-generic/cpumask.h>
+
+#endif /* _XTENSA_CPUMASK_H */
diff --git a/arch/xtensa/include/asm/cputime.h b/arch/xtensa/include/asm/cputime.h
new file mode 100644
index 00000000000..a7fb864a50a
--- /dev/null
+++ b/arch/xtensa/include/asm/cputime.h
@@ -0,0 +1,6 @@
+#ifndef _XTENSA_CPUTIME_H
+#define _XTENSA_CPUTIME_H
+
+#include <asm-generic/cputime.h>
+
+#endif /* _XTENSA_CPUTIME_H */
diff --git a/arch/xtensa/include/asm/device.h b/arch/xtensa/include/asm/device.h
new file mode 100644
index 00000000000..d8f9872b0e2
--- /dev/null
+++ b/arch/xtensa/include/asm/device.h
@@ -0,0 +1,7 @@
+/*
+ * Arch specific extensions to struct device
+ *
+ * This file is released under the GPLv2
+ */
+#include <asm-generic/device.h>
+
diff --git a/arch/xtensa/include/asm/div64.h b/arch/xtensa/include/asm/div64.h
new file mode 100644
index 00000000000..f35678cb0a9
--- /dev/null
+++ b/arch/xtensa/include/asm/div64.h
@@ -0,0 +1,16 @@
+/*
+ * include/asm-xtensa/div64.h
+ *
+ * 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 - 2007 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_DIV64_H
+#define _XTENSA_DIV64_H
+
+#include <asm-generic/div64.h>
+
+#endif /* _XTENSA_DIV64_H */
diff --git a/arch/xtensa/include/asm/emergency-restart.h b/arch/xtensa/include/asm/emergency-restart.h
new file mode 100644
index 00000000000..108d8c48e42
--- /dev/null
+++ b/arch/xtensa/include/asm/emergency-restart.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_EMERGENCY_RESTART_H
+#define _ASM_EMERGENCY_RESTART_H
+
+#include <asm-generic/emergency-restart.h>
+
+#endif /* _ASM_EMERGENCY_RESTART_H */
diff --git a/arch/xtensa/include/asm/errno.h b/arch/xtensa/include/asm/errno.h
new file mode 100644
index 00000000000..a0f3b96b79b
--- /dev/null
+++ b/arch/xtensa/include/asm/errno.h
@@ -0,0 +1,16 @@
+/*
+ * include/asm-xtensa/errno.h
+ *
+ * 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) 2002 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_ERRNO_H
+#define _XTENSA_ERRNO_H
+
+#include <asm-generic/errno.h>
+
+#endif  /* _XTENSA_ERRNO_H */
diff --git a/arch/xtensa/include/asm/fcntl.h b/arch/xtensa/include/asm/fcntl.h
new file mode 100644
index 00000000000..46ab12db573
--- /dev/null
+++ b/arch/xtensa/include/asm/fcntl.h
@@ -0,0 +1 @@
+#include <asm-generic/fcntl.h>
diff --git a/arch/xtensa/include/asm/futex.h b/arch/xtensa/include/asm/futex.h
new file mode 100644
index 00000000000..0b745828f42
--- /dev/null
+++ b/arch/xtensa/include/asm/futex.h
@@ -0,0 +1 @@
+#include <asm-generic/futex.h>
diff --git a/arch/xtensa/include/asm/hardirq.h b/arch/xtensa/include/asm/hardirq.h
new file mode 100644
index 00000000000..26664cef8f1
--- /dev/null
+++ b/arch/xtensa/include/asm/hardirq.h
@@ -0,0 +1,19 @@
+/*
+ * include/asm-xtensa/hardirq.h
+ *
+ * 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) 2002 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_HARDIRQ_H
+#define _XTENSA_HARDIRQ_H
+
+void ack_bad_irq(unsigned int irq);
+#define ack_bad_irq ack_bad_irq
+
+#include <asm-generic/hardirq.h>
+
+#endif  /* _XTENSA_HARDIRQ_H */
diff --git a/arch/xtensa/include/asm/ioctl.h b/arch/xtensa/include/asm/ioctl.h
new file mode 100644
index 00000000000..b279fe06dfe
--- /dev/null
+++ b/arch/xtensa/include/asm/ioctl.h
@@ -0,0 +1 @@
+#include <asm-generic/ioctl.h>
diff --git a/arch/xtensa/include/asm/ioctls.h b/arch/xtensa/include/asm/ioctls.h
new file mode 100644
index 00000000000..fd1d1369a40
--- /dev/null
+++ b/arch/xtensa/include/asm/ioctls.h
@@ -0,0 +1,120 @@
+/*
+ * include/asm-xtensa/ioctls.h
+ *
+ * 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) 2003 - 2005 Tensilica Inc.
+ *
+ * Derived from "include/asm-i386/ioctls.h"
+ */
+
+#ifndef _XTENSA_IOCTLS_H
+#define _XTENSA_IOCTLS_H
+
+#include <asm/ioctl.h>
+
+#define FIOCLEX         _IO('f', 1)
+#define FIONCLEX        _IO('f', 2)
+#define FIOASYNC        _IOW('f', 125, int)
+#define FIONBIO         _IOW('f', 126, int)
+#define FIONREAD        _IOR('f', 127, int)
+#define TIOCINQ         FIONREAD
+#define FIOQSIZE        _IOR('f', 128, loff_t)
+
+#define TCGETS          0x5401
+#define TCSETS          0x5402
+#define TCSETSW         0x5403
+#define TCSETSF         0x5404
+
+#define TCGETA          _IOR('t', 23, struct termio)
+#define TCSETA          _IOW('t', 24, struct termio)
+#define TCSETAW         _IOW('t', 25, struct termio)
+#define TCSETAF         _IOW('t', 28, struct termio)
+
+#define TCSBRK          _IO('t', 29)
+#define TCXONC          _IO('t', 30)
+#define TCFLSH          _IO('t', 31)
+
+#define TIOCSWINSZ      _IOW('t', 103, struct winsize)
+#define TIOCGWINSZ      _IOR('t', 104, struct winsize)
+#define TIOCSTART       _IO('t', 110)           /* start output, like ^Q */
+#define TIOCSTOP        _IO('t', 111)           /* stop output, like ^S */
+#define TIOCOUTQ        _IOR('t', 115, int)     /* output queue size */
+
+#define TIOCSPGRP       _IOW('t', 118, int)
+#define TIOCGPGRP       _IOR('t', 119, int)
+
+#define TIOCEXCL        _IO('T', 12)
+#define TIOCNXCL        _IO('T', 13)
+#define TIOCSCTTY       _IO('T', 14)
+
+#define TIOCSTI         _IOW('T', 18, char)
+#define TIOCMGET        _IOR('T', 21, unsigned int)
+#define TIOCMBIS        _IOW('T', 22, unsigned int)
+#define TIOCMBIC        _IOW('T', 23, unsigned int)
+#define TIOCMSET        _IOW('T', 24, unsigned int)
+# define TIOCM_LE       0x001
+# define TIOCM_DTR      0x002
+# define TIOCM_RTS      0x004
+# define TIOCM_ST       0x008
+# define TIOCM_SR       0x010
+# define TIOCM_CTS      0x020
+# define TIOCM_CAR      0x040
+# define TIOCM_RNG      0x080
+# define TIOCM_DSR      0x100
+# define TIOCM_CD       TIOCM_CAR
+# define TIOCM_RI       TIOCM_RNG
+
+#define TIOCGSOFTCAR    _IOR('T', 25, unsigned int)
+#define TIOCSSOFTCAR    _IOW('T', 26, unsigned int)
+#define TIOCLINUX       _IOW('T', 28, char)
+#define TIOCCONS        _IO('T', 29)
+#define TIOCGSERIAL     _IOR('T', 30, struct serial_struct)
+#define TIOCSSERIAL     _IOW('T', 31, struct serial_struct)
+#define TIOCPKT         _IOW('T', 32, int)
+# define TIOCPKT_DATA            0
+# define TIOCPKT_FLUSHREAD       1
+# define TIOCPKT_FLUSHWRITE      2
+# define TIOCPKT_STOP            4
+# define TIOCPKT_START           8
+# define TIOCPKT_NOSTOP         16
+# define TIOCPKT_DOSTOP         32
+# define TIOCPKT_IOCTL          64
+
+
+#define TIOCNOTTY       _IO('T', 34)
+#define TIOCSETD        _IOW('T', 35, int)
+#define TIOCGETD        _IOR('T', 36, int)
+#define TCSBRKP         _IOW('T', 37, int)   /* Needed for POSIX tcsendbreak()*/
+#define TIOCTTYGSTRUCT  _IOR('T', 38, struct tty_struct) /* For debugging only*/
+#define TIOCSBRK        _IO('T', 39)         /* BSD compatibility */
+#define TIOCCBRK        _IO('T', 40)         /* BSD compatibility */
+#define TIOCGSID        _IOR('T', 41, pid_t) /* Return the session ID of FD*/
+#define TCGETS2         _IOR('T', 42, struct termios2)
+#define TCSETS2         _IOW('T', 43, struct termios2)
+#define TCSETSW2        _IOW('T', 44, struct termios2)
+#define TCSETSF2        _IOW('T', 45, struct termios2)
+#define TIOCGPTN        _IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
+#define TIOCSPTLCK      _IOW('T',0x31, int)  /* Lock/unlock Pty */
+#define TIOCGDEV        _IOR('T',0x32, unsigned int) /* Get primary device node of /dev/console */
+#define TIOCSIG         _IOW('T',0x36, int)  /* Generate signal on Pty slave */
+#define TIOCVHANGUP     _IO('T', 0x37)
+
+#define TIOCSERCONFIG   _IO('T', 83)
+#define TIOCSERGWILD    _IOR('T', 84,  int)
+#define TIOCSERSWILD    _IOW('T', 85,  int)
+#define TIOCGLCKTRMIOS  0x5456
+#define TIOCSLCKTRMIOS  0x5457
+#define TIOCSERGSTRUCT  0x5458               /* For debugging only */
+#define TIOCSERGETLSR   _IOR('T', 89, unsigned int) /* Get line status reg. */
+  /* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */
+# define TIOCSER_TEMT    0x01                /* Transmitter physically empty */
+#define TIOCSERGETMULTI _IOR('T', 90, struct serial_multiport_struct) /* Get multiport config  */
+#define TIOCSERSETMULTI _IOW('T', 91, struct serial_multiport_struct) /* Set multiport config */
+
+#define TIOCMIWAIT      _IO('T', 92) /* wait for a change on serial input line(s) */
+#define TIOCGICOUNT     0x545D  /* read serial port inline interrupt counts */
+
+#endif /* _XTENSA_IOCTLS_H */
diff --git a/arch/xtensa/include/asm/ipcbuf.h b/arch/xtensa/include/asm/ipcbuf.h
new file mode 100644
index 00000000000..c33aa6a4214
--- /dev/null
+++ b/arch/xtensa/include/asm/ipcbuf.h
@@ -0,0 +1,37 @@
+/*
+ * include/asm-xtensa/ipcbuf.h
+ *
+ * The ipc64_perm structure for the Xtensa architecture.
+ * Note extra padding because this structure is passed back and forth
+ * between kernel and user space.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_IPCBUF_H
+#define _XTENSA_IPCBUF_H
+
+/*
+ * Pad space is left for:
+ * - 32-bit mode_t and seq
+ * - 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.
+ */
+
+struct ipc64_perm
+{
+        __kernel_key_t          key;
+        __kernel_uid32_t        uid;
+        __kernel_gid32_t        gid;
+        __kernel_uid32_t        cuid;
+        __kernel_gid32_t        cgid;
+        __kernel_mode_t         mode;
+        unsigned long           seq;
+        unsigned long           __unused1;
+        unsigned long           __unused2;
+};
+
+#endif /* _XTENSA_IPCBUF_H */
diff --git a/arch/xtensa/include/asm/irq_regs.h b/arch/xtensa/include/asm/irq_regs.h
new file mode 100644
index 00000000000..3dd9c0b7027
--- /dev/null
+++ b/arch/xtensa/include/asm/irq_regs.h
@@ -0,0 +1 @@
+#include <asm-generic/irq_regs.h>
diff --git a/arch/xtensa/include/asm/kdebug.h b/arch/xtensa/include/asm/kdebug.h
new file mode 100644
index 00000000000..6ece1b03766
--- /dev/null
+++ b/arch/xtensa/include/asm/kdebug.h
@@ -0,0 +1 @@
+#include <asm-generic/kdebug.h>
diff --git a/arch/xtensa/include/asm/kmap_types.h b/arch/xtensa/include/asm/kmap_types.h
new file mode 100644
index 00000000000..11c687e527f
--- /dev/null
+++ b/arch/xtensa/include/asm/kmap_types.h
@@ -0,0 +1,6 @@
+#ifndef _XTENSA_KMAP_TYPES_H
+#define _XTENSA_KMAP_TYPES_H
+
+#include <asm-generic/kmap_types.h>
+
+#endif  /* _XTENSA_KMAP_TYPES_H */
diff --git a/arch/xtensa/include/asm/local.h b/arch/xtensa/include/asm/local.h
new file mode 100644
index 00000000000..48723e550d1
--- /dev/null
+++ b/arch/xtensa/include/asm/local.h
@@ -0,0 +1,16 @@
+/*
+ * include/asm-xtensa/local.h
+ *
+ * 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_LOCAL_H
+#define _XTENSA_LOCAL_H
+
+#include <asm-generic/local.h>
+
+#endif /* _XTENSA_LOCAL_H */
diff --git a/arch/xtensa/include/asm/local64.h b/arch/xtensa/include/asm/local64.h
new file mode 100644
index 00000000000..36c93b5cc23
--- /dev/null
+++ b/arch/xtensa/include/asm/local64.h
@@ -0,0 +1 @@
+#include <asm-generic/local64.h>
diff --git a/arch/xtensa/include/asm/mman.h b/arch/xtensa/include/asm/mman.h
new file mode 100644
index 00000000000..30789010733
--- /dev/null
+++ b/arch/xtensa/include/asm/mman.h
@@ -0,0 +1,92 @@
+/*
+ * 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 */
+#define MAP_STACK       0x40000         /* give out an address that is best suited for process/thread stacks */
+#define MAP_HUGETLB     0x80000         /* create a huge page mapping */
+
+/*
+ * 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     0               /* no further special treatment */
+#define MADV_RANDOM     1               /* expect random page references */
+#define MADV_SEQUENTIAL 2               /* expect sequential page references */
+#define MADV_WILLNEED   3               /* will need these pages */
+#define MADV_DONTNEED   4               /* don't need these pages */
+
+/* common parameters: try to keep these consistent across architectures */
+#define MADV_REMOVE     9               /* remove these pages & resources */
+#define MADV_DONTFORK   10              /* don't inherit across fork */
+#define MADV_DOFORK     11              /* do inherit across fork */
+
+#define MADV_MERGEABLE   12             /* KSM may merge identical pages */
+#define MADV_UNMERGEABLE 13             /* KSM may not merge identical pages */
+
+#define MADV_HUGEPAGE   14              /* Worth backing with hugepages */
+#define MADV_NOHUGEPAGE 15              /* Not worth backing with hugepages */
+
+/* compatibility flags */
+#define MAP_FILE        0
+
+#endif /* _XTENSA_MMAN_H */
diff --git a/arch/xtensa/include/asm/msgbuf.h b/arch/xtensa/include/asm/msgbuf.h
new file mode 100644
index 00000000000..693c9675528
--- /dev/null
+++ b/arch/xtensa/include/asm/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 */
diff --git a/arch/xtensa/include/asm/nommu.h b/arch/xtensa/include/asm/nommu.h
new file mode 100644
index 00000000000..dce2c438c5b
--- /dev/null
+++ b/arch/xtensa/include/asm/nommu.h
@@ -0,0 +1,3 @@
+typedef struct {
+        unsigned long end_brk;
+} mm_context_t;
diff --git a/arch/xtensa/include/asm/percpu.h b/arch/xtensa/include/asm/percpu.h
new file mode 100644
index 00000000000..6d2bc2ada9d
--- /dev/null
+++ b/arch/xtensa/include/asm/percpu.h
@@ -0,0 +1,16 @@
+/*
+ * linux/include/asm-xtensa/percpu.h
+ *
+ * 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_PERCPU__
+#define _XTENSA_PERCPU__
+
+#include <asm-generic/percpu.h>
+
+#endif /* _XTENSA_PERCPU__ */
diff --git a/arch/xtensa/include/asm/poll.h b/arch/xtensa/include/asm/poll.h
new file mode 100644
index 00000000000..9d2d5993f06
--- /dev/null
+++ b/arch/xtensa/include/asm/poll.h
@@ -0,0 +1,20 @@
+/*
+ * include/asm-xtensa/poll.h
+ *
+ * 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_POLL_H
+#define _XTENSA_POLL_H
+
+#define POLLWRNORM      POLLOUT
+#define POLLWRBAND      0x0100
+#define POLLREMOVE      0x0800
+
+#include <asm-generic/poll.h>
+
+#endif /* _XTENSA_POLL_H */
diff --git a/arch/xtensa/include/asm/posix_types.h b/arch/xtensa/include/asm/posix_types.h
new file mode 100644
index 00000000000..6b2190c3588
--- /dev/null
+++ b/arch/xtensa/include/asm/posix_types.h
@@ -0,0 +1,122 @@
+/*
+ * include/asm-xtensa/posix_types.h
+ *
+ * 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.
+ *
+ * Largely copied from include/asm-ppc/posix_types.h
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_POSIX_TYPES_H
+#define _XTENSA_POSIX_TYPES_H
+
+/*
+ * This file is generally used by user-level software, so you need to
+ * be a little careful about namespace pollution etc.  Also, we cannot
+ * assume GCC is being used.
+ */
+
+typedef unsigned long   __kernel_ino_t;
+typedef unsigned int    __kernel_mode_t;
+typedef unsigned long   __kernel_nlink_t;
+typedef long            __kernel_off_t;
+typedef int             __kernel_pid_t;
+typedef unsigned short  __kernel_ipc_pid_t;
+typedef unsigned int    __kernel_uid_t;
+typedef unsigned int    __kernel_gid_t;
+typedef unsigned int    __kernel_size_t;
+typedef int             __kernel_ssize_t;
+typedef long            __kernel_ptrdiff_t;
+typedef long            __kernel_time_t;
+typedef long            __kernel_suseconds_t;
+typedef long            __kernel_clock_t;
+typedef int             __kernel_timer_t;
+typedef int             __kernel_clockid_t;
+typedef int             __kernel_daddr_t;
+typedef char *          __kernel_caddr_t;
+typedef unsigned short  __kernel_uid16_t;
+typedef unsigned short  __kernel_gid16_t;
+typedef unsigned int    __kernel_uid32_t;
+typedef unsigned int    __kernel_gid32_t;
+
+typedef unsigned short  __kernel_old_uid_t;
+typedef unsigned short  __kernel_old_gid_t;
+typedef unsigned short  __kernel_old_dev_t;
+
+#ifdef __GNUC__
+typedef long long       __kernel_loff_t;
+#endif
+
+typedef struct {
+        int     val[2];
+} __kernel_fsid_t;
+
+#ifndef __GNUC__
+
+#define __FD_SET(d, set)        ((set)->fds_bits[__FDELT(d)] |= __FDMASK(d))
+#define __FD_CLR(d, set)        ((set)->fds_bits[__FDELT(d)] &= ~__FDMASK(d))
+#define __FD_ISSET(d, set)      (!!((set)->fds_bits[__FDELT(d)] & __FDMASK(d)))
+#define __FD_ZERO(set)  \
+  ((void) memset ((void *) (set), 0, sizeof (__kernel_fd_set)))
+
+#else /* __GNUC__ */
+
+#if defined(__KERNEL__)
+/* With GNU C, use inline functions instead so args are evaluated only once: */
+
+#undef __FD_SET
+static __inline__ void __FD_SET(unsigned long fd, __kernel_fd_set *fdsetp)
+{
+        unsigned long _tmp = fd / __NFDBITS;
+        unsigned long _rem = fd % __NFDBITS;
+        fdsetp->fds_bits[_tmp] |= (1UL<<_rem);
+}
+
+#undef __FD_CLR
+static __inline__ void __FD_CLR(unsigned long fd, __kernel_fd_set *fdsetp)
+{
+        unsigned long _tmp = fd / __NFDBITS;
+        unsigned long _rem = fd % __NFDBITS;
+        fdsetp->fds_bits[_tmp] &= ~(1UL<<_rem);
+}
+
+#undef __FD_ISSET
+static __inline__ int __FD_ISSET(unsigned long fd, __kernel_fd_set *p)
+{
+        unsigned long _tmp = fd / __NFDBITS;
+        unsigned long _rem = fd % __NFDBITS;
+        return (p->fds_bits[_tmp] & (1UL<<_rem)) != 0;
+}
+
+/*
+ * This will unroll the loop for the normal constant case (8 ints,
+ * for a 256-bit fd_set)
+ */
+#undef __FD_ZERO
+static __inline__ void __FD_ZERO(__kernel_fd_set *p)
+{
+        unsigned int *tmp = (unsigned int *)p->fds_bits;
+        int i;
+
+        if (__builtin_constant_p(__FDSET_LONGS)) {
+                switch (__FDSET_LONGS) {
+                        case 8:
+                                tmp[0] = 0; tmp[1] = 0; tmp[2] = 0; tmp[3] = 0;
+                                tmp[4] = 0; tmp[5] = 0; tmp[6] = 0; tmp[7] = 0;
+                                return;
+                }
+        }
+        i = __FDSET_LONGS;
+        while (i) {
+                i--;
+                *tmp = 0;
+                tmp++;
+        }
+}
+
+#endif /* defined(__KERNEL__) */
+#endif /* __GNUC__ */
+#endif /* _XTENSA_POSIX_TYPES_H */
diff --git a/arch/xtensa/include/asm/resource.h b/arch/xtensa/include/asm/resource.h
new file mode 100644
index 00000000000..17b5ab31177
--- /dev/null
+++ b/arch/xtensa/include/asm/resource.h
@@ -0,0 +1,16 @@
+/*
+ * include/asm-xtensa/resource.h
+ *
+ * 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) 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_RESOURCE_H
+#define _XTENSA_RESOURCE_H
+
+#include <asm-generic/resource.h>
+
+#endif  /* _XTENSA_RESOURCE_H */
diff --git a/arch/xtensa/include/asm/rmap.h b/arch/xtensa/include/asm/rmap.h
new file mode 100644
index 00000000000..649588b7e9a
--- /dev/null
+++ b/arch/xtensa/include/asm/rmap.h
@@ -0,0 +1,16 @@
+/*
+ * include/asm-xtensa/rmap.h
+ *
+ * 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_RMAP_H
+#define _XTENSA_RMAP_H
+
+#include <asm-generic/rmap.h>
+
+#endif
diff --git a/arch/xtensa/include/asm/scatterlist.h b/arch/xtensa/include/asm/scatterlist.h
new file mode 100644
index 00000000000..a0421a61d9e
--- /dev/null
+++ b/arch/xtensa/include/asm/scatterlist.h
@@ -0,0 +1,16 @@
+/*
+ * include/asm-xtensa/scatterlist.h
+ *
+ * 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_SCATTERLIST_H
+#define _XTENSA_SCATTERLIST_H
+
+#include <asm-generic/scatterlist.h>
+
+#endif  /* _XTENSA_SCATTERLIST_H */
diff --git a/arch/xtensa/include/asm/sections.h b/arch/xtensa/include/asm/sections.h
new file mode 100644
index 00000000000..40b5191b55a
--- /dev/null
+++ b/arch/xtensa/include/asm/sections.h
@@ -0,0 +1,16 @@
+/*
+ * include/asm-xtensa/sections.h
+ *
+ * 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_SECTIONS_H
+#define _XTENSA_SECTIONS_H
+
+#include <asm-generic/sections.h>
+
+#endif  /* _XTENSA_SECTIONS_H */
diff --git a/arch/xtensa/include/asm/sembuf.h b/arch/xtensa/include/asm/sembuf.h
new file mode 100644
index 00000000000..c15870493b3
--- /dev/null
+++ b/arch/xtensa/include/asm/sembuf.h
@@ -0,0 +1,44 @@
+/*
+ * include/asm-xtensa/sembuf.h
+ *
+ * The semid64_ds structure for Xtensa architecture.
+ *
+ * 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.
+ *
+ * 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
+ *
+ */
+
+#ifndef _XTENSA_SEMBUF_H
+#define _XTENSA_SEMBUF_H
+
+#include <asm/byteorder.h>
+
+struct semid64_ds {
+        struct ipc64_perm sem_perm;             /* permissions .. see ipc.h */
+#ifdef __XTENSA_EL__
+        __kernel_time_t sem_otime;              /* last semop time */
+        unsigned long   __unused1;
+        __kernel_time_t sem_ctime;              /* last change time */
+        unsigned long   __unused2;
+#else
+        unsigned long   __unused1;
+        __kernel_time_t sem_otime;              /* last semop time */
+        unsigned long   __unused2;
+        __kernel_time_t sem_ctime;              /* last change time */
+#endif
+        unsigned long   sem_nsems;              /* no. of semaphores in array */
+        unsigned long   __unused3;
+        unsigned long   __unused4;
+};
+
+#endif /* __ASM_XTENSA_SEMBUF_H */
diff --git a/arch/xtensa/include/asm/setup.h b/arch/xtensa/include/asm/setup.h
new file mode 100644
index 00000000000..e3636520d8c
--- /dev/null
+++ b/arch/xtensa/include/asm/setup.h
@@ -0,0 +1,16 @@
+/*
+ * include/asm-xtensa/setup.h
+ *
+ * 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_SETUP_H
+#define _XTENSA_SETUP_H
+
+#define COMMAND_LINE_SIZE       256
+
+#endif
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 */
diff --git a/arch/xtensa/include/asm/sigcontext.h b/arch/xtensa/include/asm/sigcontext.h
new file mode 100644
index 00000000000..03383af8c3b
--- /dev/null
+++ b/arch/xtensa/include/asm/sigcontext.h
@@ -0,0 +1,28 @@
+/*
+ * include/asm-xtensa/sigcontext.h
+ *
+ * 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 - 2007 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_SIGCONTEXT_H
+#define _XTENSA_SIGCONTEXT_H
+
+
+struct sigcontext {
+        unsigned long sc_pc;
+        unsigned long sc_ps;
+        unsigned long sc_lbeg;
+        unsigned long sc_lend;
+        unsigned long sc_lcount;
+        unsigned long sc_sar;
+        unsigned long sc_acclo;
+        unsigned long sc_acchi;
+        unsigned long sc_a[16];
+        void *sc_xtregs;
+};
+
+#endif /* _XTENSA_SIGCONTEXT_H */
diff --git a/arch/xtensa/include/asm/siginfo.h b/arch/xtensa/include/asm/siginfo.h
new file mode 100644
index 00000000000..6916248295d
--- /dev/null
+++ b/arch/xtensa/include/asm/siginfo.h
@@ -0,0 +1,16 @@
+/*
+ * include/asm-xtensa/siginfo.h
+ *
+ * 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_SIGINFO_H
+#define _XTENSA_SIGINFO_H
+
+#include <asm-generic/siginfo.h>
+
+#endif  /* _XTENSA_SIGINFO_H */
diff --git a/arch/xtensa/include/asm/socket.h b/arch/xtensa/include/asm/socket.h
new file mode 100644
index 00000000000..cbdf2ffaacf
--- /dev/null
+++ b/arch/xtensa/include/asm/socket.h
@@ -0,0 +1,76 @@
+/*
+ * include/asm-xtensa/socket.h
+ *
+ * Copied from i386.
+ *
+ * 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_SOCKET_H
+#define _XTENSA_SOCKET_H
+
+#include <asm/sockios.h>
+
+/* For setsockoptions(2) */
+#define SOL_SOCKET      1
+
+#define SO_DEBUG        1
+#define SO_REUSEADDR    2
+#define SO_TYPE         3
+#define SO_ERROR        4
+#define SO_DONTROUTE    5
+#define SO_BROADCAST    6
+#define SO_SNDBUF       7
+#define SO_RCVBUF       8
+#define SO_SNDBUFFORCE  32
+#define SO_RCVBUFFORCE  33
+#define SO_KEEPALIVE    9
+#define SO_OOBINLINE    10
+#define SO_NO_CHECK     11
+#define SO_PRIORITY     12
+#define SO_LINGER       13
+#define SO_BSDCOMPAT    14
+/* To add :#define SO_REUSEPORT 15 */
+#define SO_PASSCRED     16
+#define SO_PEERCRED     17
+#define SO_RCVLOWAT     18
+#define SO_SNDLOWAT     19
+#define SO_RCVTIMEO     20
+#define SO_SNDTIMEO     21
+
+/* Security levels - as per NRL IPv6 - don't actually do anything */
+
+#define SO_SECURITY_AUTHENTICATION              22
+#define SO_SECURITY_ENCRYPTION_TRANSPORT        23
+#define SO_SECURITY_ENCRYPTION_NETWORK          24
+
+#define SO_BINDTODEVICE 25
+
+/* Socket filtering */
+
+#define SO_ATTACH_FILTER        26
+#define SO_DETACH_FILTER        27
+
+#define SO_PEERNAME             28
+#define SO_TIMESTAMP            29
+#define SCM_TIMESTAMP           SO_TIMESTAMP
+
+#define SO_ACCEPTCONN           30
+#define SO_PEERSEC              31
+#define SO_PASSSEC              34
+#define SO_TIMESTAMPNS          35
+#define SCM_TIMESTAMPNS         SO_TIMESTAMPNS
+
+#define SO_MARK                 36
+
+#define SO_TIMESTAMPING         37
+#define SCM_TIMESTAMPING        SO_TIMESTAMPING
+
+#define SO_PROTOCOL             38
+#define SO_DOMAIN               39
+
+#define SO_RXQ_OVFL             40
+
+#endif  /* _XTENSA_SOCKET_H */
diff --git a/arch/xtensa/include/asm/sockios.h b/arch/xtensa/include/asm/sockios.h
new file mode 100644
index 00000000000..efe0af379f0
--- /dev/null
+++ b/arch/xtensa/include/asm/sockios.h
@@ -0,0 +1,31 @@
+/*
+ * include/asm-xtensa/sockios.h
+ *
+ * Socket-level I/O control calls.  Copied from MIPS.
+ *
+ * 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 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_SOCKIOS_H
+#define _XTENSA_SOCKIOS_H
+
+#include <asm/ioctl.h>
+
+/* Socket-level I/O control calls. */
+
+#define FIOGETOWN       _IOR('f', 123, int)
+#define FIOSETOWN       _IOW('f', 124, int)
+
+#define SIOCATMARK      _IOR('s', 7, int)
+#define SIOCSPGRP       _IOW('s', 8, pid_t)
+#define SIOCGPGRP       _IOR('s', 9, pid_t)
+
+#define SIOCGSTAMP      0x8906          /* Get stamp (timeval) */
+#define SIOCGSTAMPNS    0x8907          /* Get stamp (timespec) */
+
+#endif  /* _XTENSA_SOCKIOS_H */
diff --git a/arch/xtensa/include/asm/stat.h b/arch/xtensa/include/asm/stat.h
new file mode 100644
index 00000000000..c4992038cee
--- /dev/null
+++ b/arch/xtensa/include/asm/stat.h
@@ -0,0 +1,59 @@
+/*
+ * include/asm-xtensa/stat.h
+ *
+ * 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 - 2007 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_STAT_H
+#define _XTENSA_STAT_H
+
+#define STAT_HAVE_NSEC 1
+
+struct stat {
+        unsigned long   st_dev;
+        unsigned long   st_ino;
+        unsigned int    st_mode;
+        unsigned int    st_nlink;
+        unsigned int    st_uid;
+        unsigned int    st_gid;
+        unsigned long   st_rdev;
+        long            st_size;
+        unsigned long   st_blksize;
+        unsigned long   st_blocks;
+        unsigned long   st_atime;
+        unsigned long   st_atime_nsec;
+        unsigned long   st_mtime;
+        unsigned long   st_mtime_nsec;
+        unsigned long   st_ctime;
+        unsigned long   st_ctime_nsec;
+        unsigned long   __unused4;
+        unsigned long   __unused5;
+};
+
+struct stat64  {
+        unsigned long long st_dev;      /* Device */
+        unsigned long long st_ino;      /* File serial number */
+        unsigned int  st_mode;          /* File mode. */
+        unsigned int  st_nlink;         /* Link count. */
+        unsigned int  st_uid;           /* User ID of the file's owner. */
+        unsigned int  st_gid;           /* Group ID of the file's group. */
+        unsigned long long st_rdev;     /* Device number, if device. */
+        long long st_size;              /* Size of file, in bytes. */
+        unsigned long st_blksize;       /* Optimal block size for I/O. */
+        unsigned long __unused2;
+        unsigned long long st_blocks;   /* Number 512-byte blocks allocated. */
+        unsigned long st_atime;         /* Time of last access. */
+        unsigned long st_atime_nsec;
+        unsigned long st_mtime;         /* Time of last modification. */
+        unsigned long st_mtime_nsec;
+        unsigned long st_ctime;         /* Time of last status change. */
+        unsigned long st_ctime_nsec;
+        unsigned long __unused4;
+        unsigned long __unused5;
+};
+
+#endif  /* _XTENSA_STAT_H */
diff --git a/arch/xtensa/include/asm/statfs.h b/arch/xtensa/include/asm/statfs.h
new file mode 100644
index 00000000000..9c3d1a21313
--- /dev/null
+++ b/arch/xtensa/include/asm/statfs.h
@@ -0,0 +1,17 @@
+/*
+ * include/asm-xtensa/statfs.h
+ *
+ * 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) 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_STATFS_H
+#define _XTENSA_STATFS_H
+
+#include <asm-generic/statfs.h>
+
+#endif  /* _XTENSA_STATFS_H */
+
diff --git a/arch/xtensa/include/asm/swab.h b/arch/xtensa/include/asm/swab.h
new file mode 100644
index 00000000000..226a3916231
--- /dev/null
+++ b/arch/xtensa/include/asm/swab.h
@@ -0,0 +1,70 @@
+/*
+ * include/asm-xtensa/swab.h
+ *
+ * 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_SWAB_H
+#define _XTENSA_SWAB_H
+
+#include <linux/types.h>
+#include <linux/compiler.h>
+
+#define __SWAB_64_THRU_32__
+
+static inline __attribute_const__ __u32 __arch_swab32(__u32 x)
+{
+    __u32 res;
+    /* instruction sequence from Xtensa ISA release 2/2000 */
+    __asm__("ssai     8           \n\t"
+            "srli     %0, %1, 16  \n\t"
+            "src      %0, %0, %1  \n\t"
+            "src      %0, %0, %0  \n\t"
+            "src      %0, %1, %0  \n"
+            : "=&a" (res)
+            : "a" (x)
+            );
+    return res;
+}
+#define __arch_swab32 __arch_swab32
+
+static inline __attribute_const__ __u16 __arch_swab16(__u16 x)
+{
+    /* Given that 'short' values are signed (i.e., can be negative),
+     * we cannot assume that the upper 16-bits of the register are
+     * zero.  We are careful to mask values after shifting.
+     */
+
+    /* There exists an anomaly between xt-gcc and xt-xcc.  xt-gcc
+     * inserts an extui instruction after putting this function inline
+     * to ensure that it uses only the least-significant 16 bits of
+     * the result.  xt-xcc doesn't use an extui, but assumes the
+     * __asm__ macro follows convention that the upper 16 bits of an
+     * 'unsigned short' result are still zero.  This macro doesn't
+     * follow convention; indeed, it leaves garbage in the upport 16
+     * bits of the register.
+
+     * Declaring the temporary variables 'res' and 'tmp' to be 32-bit
+     * types while the return type of the function is a 16-bit type
+     * forces both compilers to insert exactly one extui instruction
+     * (or equivalent) to mask off the upper 16 bits. */
+
+    __u32 res;
+    __u32 tmp;
+
+    __asm__("extui    %1, %2, 8, 8\n\t"
+            "slli     %0, %2, 8   \n\t"
+            "or       %0, %0, %1  \n"
+            : "=&a" (res), "=&a" (tmp)
+            : "a" (x)
+            );
+
+    return res;
+}
+#define __arch_swab16 __arch_swab16
+
+#endif /* _XTENSA_SWAB_H */
diff --git a/arch/xtensa/include/asm/system.h b/arch/xtensa/include/asm/system.h
new file mode 100644
index 00000000000..1e7e09ab6cd
--- /dev/null
+++ b/arch/xtensa/include/asm/system.h
@@ -0,0 +1,184 @@
+/*
+ * include/asm-xtensa/system.h
+ *
+ * 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_SYSTEM_H
+#define _XTENSA_SYSTEM_H
+
+#include <linux/stringify.h>
+#include <linux/irqflags.h>
+
+#include <asm/processor.h>
+
+#define smp_read_barrier_depends() do { } while(0)
+#define read_barrier_depends() do { } while(0)
+
+#define mb()  barrier()
+#define rmb() mb()
+#define wmb() mb()
+
+#ifdef CONFIG_SMP
+#error smp_* not defined
+#else
+#define smp_mb()        barrier()
+#define smp_rmb()       barrier()
+#define smp_wmb()       barrier()
+#endif
+
+#define set_mb(var, value)      do { var = value; mb(); } while (0)
+
+#if !defined (__ASSEMBLY__)
+
+/* * switch_to(n) should switch tasks to task nr n, first
+ * checking that n isn't the current task, in which case it does nothing.
+ */
+extern void *_switch_to(void *last, void *next);
+
+#endif  /* __ASSEMBLY__ */
+
+#define switch_to(prev,next,last)               \
+do {                                            \
+        (last) = _switch_to(prev, next);        \
+} while(0)
+
+/*
+ * cmpxchg
+ */
+
+static inline unsigned long
+__cmpxchg_u32(volatile int *p, int old, int new)
+{
+  __asm__ __volatile__("rsil    a15, "__stringify(LOCKLEVEL)"\n\t"
+                       "l32i    %0, %1, 0              \n\t"
+                       "bne     %0, %2, 1f             \n\t"
+                       "s32i    %3, %1, 0              \n\t"
+                       "1:                             \n\t"
+                       "wsr     a15, "__stringify(PS)" \n\t"
+                       "rsync                          \n\t"
+                       : "=&a" (old)
+                       : "a" (p), "a" (old), "r" (new)
+                       : "a15", "memory");
+  return old;
+}
+/* This function doesn't exist, so you'll get a linker error
+ * if something tries to do an invalid cmpxchg(). */
+
+extern void __cmpxchg_called_with_bad_pointer(void);
+
+static __inline__ unsigned long
+__cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size)
+{
+        switch (size) {
+        case 4:  return __cmpxchg_u32(ptr, old, new);
+        default: __cmpxchg_called_with_bad_pointer();
+                 return old;
+        }
+}
+
+#define cmpxchg(ptr,o,n)                                                      \
+        ({ __typeof__(*(ptr)) _o_ = (o);                                      \
+           __typeof__(*(ptr)) _n_ = (n);                                      \
+           (__typeof__(*(ptr))) __cmpxchg((ptr), (unsigned long)_o_,          \
+                                        (unsigned long)_n_, sizeof (*(ptr))); \
+        })
+
+#include <asm-generic/cmpxchg-local.h>
+
+static inline unsigned long __cmpxchg_local(volatile void *ptr,
+                                      unsigned long old,
+                                      unsigned long new, int size)
+{
+        switch (size) {
+        case 4:
+                return __cmpxchg_u32(ptr, old, new);
+        default:
+                return __cmpxchg_local_generic(ptr, old, new, size);
+        }
+
+        return old;
+}
+
+/*
+ * cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make
+ * them available.
+ */
+#define cmpxchg_local(ptr, o, n)                                               \
+        ((__typeof__(*(ptr)))__cmpxchg_local_generic((ptr), (unsigned long)(o),\
+                        (unsigned long)(n), sizeof(*(ptr))))
+#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n))
+
+/*
+ * xchg_u32
+ *
+ * Note that a15 is used here because the register allocation
+ * done by the compiler is not guaranteed and a window overflow
+ * may not occur between the rsil and wsr instructions. By using
+ * a15 in the rsil, the machine is guaranteed to be in a state
+ * where no register reference will cause an overflow.
+ */
+
+static inline unsigned long xchg_u32(volatile int * m, unsigned long val)
+{
+  unsigned long tmp;
+  __asm__ __volatile__("rsil    a15, "__stringify(LOCKLEVEL)"\n\t"
+                       "l32i    %0, %1, 0              \n\t"
+                       "s32i    %2, %1, 0              \n\t"
+                       "wsr     a15, "__stringify(PS)" \n\t"
+                       "rsync                          \n\t"
+                       : "=&a" (tmp)
+                       : "a" (m), "a" (val)
+                       : "a15", "memory");
+  return tmp;
+}
+
+#define xchg(ptr,x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
+
+/*
+ * This only works if the compiler isn't horribly bad at optimizing.
+ * gcc-2.5.8 reportedly can't handle this, but I define that one to
+ * be dead anyway.
+ */
+
+extern void __xchg_called_with_bad_pointer(void);
+
+static __inline__ unsigned long
+__xchg(unsigned long x, volatile void * ptr, int size)
+{
+        switch (size) {
+                case 4:
+                        return xchg_u32(ptr, x);
+        }
+        __xchg_called_with_bad_pointer();
+        return x;
+}
+
+extern void set_except_vector(int n, void *addr);
+
+static inline void spill_registers(void)
+{
+        unsigned int a0, ps;
+
+        __asm__ __volatile__ (
+                "movi   a14," __stringify (PS_EXCM_BIT) " | 1\n\t"
+                "mov    a12, a0\n\t"
+                "rsr    a13," __stringify(SAR) "\n\t"
+                "xsr    a14," __stringify(PS) "\n\t"
+                "movi   a0, _spill_registers\n\t"
+                "rsync\n\t"
+                "callx0 a0\n\t"
+                "mov    a0, a12\n\t"
+                "wsr    a13," __stringify(SAR) "\n\t"
+                "wsr    a14," __stringify(PS) "\n\t"
+                :: "a" (&a0), "a" (&ps)
+                : "a2", "a3", "a4", "a7", "a11", "a12", "a13", "a14", "a15", "memory");
+}
+
+#define arch_align_stack(x) (x)
+
+#endif  /* _XTENSA_SYSTEM_H */
diff --git a/arch/xtensa/include/asm/termbits.h b/arch/xtensa/include/asm/termbits.h
new file mode 100644
index 00000000000..0d6c8715b24
--- /dev/null
+++ b/arch/xtensa/include/asm/termbits.h
@@ -0,0 +1,220 @@
+/*
+ * include/asm-xtensa/termbits.h
+ *
+ * Copied from SH.
+ *
+ * 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_TERMBITS_H
+#define _XTENSA_TERMBITS_H
+
+
+#include <linux/posix_types.h>
+
+typedef unsigned char   cc_t;
+typedef unsigned int    speed_t;
+typedef unsigned int    tcflag_t;
+
+#define NCCS 19
+struct termios {
+        tcflag_t c_iflag;               /* input mode flags */
+        tcflag_t c_oflag;               /* output mode flags */
+        tcflag_t c_cflag;               /* control mode flags */
+        tcflag_t c_lflag;               /* local mode flags */
+        cc_t c_line;                    /* line discipline */
+        cc_t c_cc[NCCS];                /* control characters */
+};
+
+struct termios2 {
+        tcflag_t c_iflag;               /* input mode flags */
+        tcflag_t c_oflag;               /* output mode flags */
+        tcflag_t c_cflag;               /* control mode flags */
+        tcflag_t c_lflag;               /* local mode flags */
+        cc_t c_line;                    /* line discipline */
+        cc_t c_cc[NCCS];                /* control characters */
+        speed_t c_ispeed;               /* input speed */
+        speed_t c_ospeed;               /* output speed */
+};
+
+struct ktermios {
+        tcflag_t c_iflag;               /* input mode flags */
+        tcflag_t c_oflag;               /* output mode flags */
+        tcflag_t c_cflag;               /* control mode flags */
+        tcflag_t c_lflag;               /* local mode flags */
+        cc_t c_line;                    /* line discipline */
+        cc_t c_cc[NCCS];                /* control characters */
+        speed_t c_ispeed;               /* input speed */
+        speed_t c_ospeed;               /* output speed */
+};
+
+/* c_cc characters */
+
+#define VINTR 0
+#define VQUIT 1
+#define VERASE 2
+#define VKILL 3
+#define VEOF 4
+#define VTIME 5
+#define VMIN 6
+#define VSWTC 7
+#define VSTART 8
+#define VSTOP 9
+#define VSUSP 10
+#define VEOL 11
+#define VREPRINT 12
+#define VDISCARD 13
+#define VWERASE 14
+#define VLNEXT 15
+#define VEOL2 16
+
+/* c_iflag bits */
+
+#define IGNBRK  0000001
+#define BRKINT  0000002
+#define IGNPAR  0000004
+#define PARMRK  0000010
+#define INPCK   0000020
+#define ISTRIP  0000040
+#define INLCR   0000100
+#define IGNCR   0000200
+#define ICRNL   0000400
+#define IUCLC   0001000
+#define IXON    0002000
+#define IXANY   0004000
+#define IXOFF   0010000
+#define IMAXBEL 0020000
+#define IUTF8   0040000
+
+/* c_oflag bits */
+
+#define OPOST   0000001
+#define OLCUC   0000002
+#define ONLCR   0000004
+#define OCRNL   0000010
+#define ONOCR   0000020
+#define ONLRET  0000040
+#define OFILL   0000100
+#define OFDEL   0000200
+#define NLDLY   0000400
+#define   NL0   0000000
+#define   NL1   0000400
+#define CRDLY   0003000
+#define   CR0   0000000
+#define   CR1   0001000
+#define   CR2   0002000
+#define   CR3   0003000
+#define TABDLY  0014000
+#define   TAB0  0000000
+#define   TAB1  0004000
+#define   TAB2  0010000
+#define   TAB3  0014000
+#define   XTABS 0014000
+#define BSDLY   0020000
+#define   BS0   0000000
+#define   BS1   0020000
+#define VTDLY   0040000
+#define   VT0   0000000
+#define   VT1   0040000
+#define FFDLY   0100000
+#define   FF0   0000000
+#define   FF1   0100000
+
+/* c_cflag bit meaning */
+
+#define CBAUD   0010017
+#define  B0     0000000         /* hang up */
+#define  B50    0000001
+#define  B75    0000002
+#define  B110   0000003
+#define  B134   0000004
+#define  B150   0000005
+#define  B200   0000006
+#define  B300   0000007
+#define  B600   0000010
+#define  B1200  0000011
+#define  B1800  0000012
+#define  B2400  0000013
+#define  B4800  0000014
+#define  B9600  0000015
+#define  B19200 0000016
+#define  B38400 0000017
+#define EXTA B19200
+#define EXTB B38400
+#define CSIZE   0000060
+#define   CS5   0000000
+#define   CS6   0000020
+#define   CS7   0000040
+#define   CS8   0000060
+#define CSTOPB  0000100
+#define CREAD   0000200
+#define PARENB  0000400
+#define PARODD  0001000
+#define HUPCL   0002000
+#define CLOCAL  0004000
+#define CBAUDEX 0010000
+#define    BOTHER 0010000
+#define    B57600 0010001
+#define   B115200 0010002
+#define   B230400 0010003
+#define   B460800 0010004
+#define   B500000 0010005
+#define   B576000 0010006
+#define   B921600 0010007
+#define  B1000000 0010010
+#define  B1152000 0010011
+#define  B1500000 0010012
+#define  B2000000 0010013
+#define  B2500000 0010014
+#define  B3000000 0010015
+#define  B3500000 0010016
+#define  B4000000 0010017
+#define CIBAUD    002003600000          /* input baud rate */
+#define CMSPAR    010000000000          /* mark or space (stick) parity */
+#define CRTSCTS   020000000000          /* flow control */
+
+#define IBSHIFT 16              /* Shift from CBAUD to CIBAUD */
+
+/* c_lflag bits */
+
+#define ISIG    0000001
+#define ICANON  0000002
+#define XCASE   0000004
+#define ECHO    0000010
+#define ECHOE   0000020
+#define ECHOK   0000040
+#define ECHONL  0000100
+#define NOFLSH  0000200
+#define TOSTOP  0000400
+#define ECHOCTL 0001000
+#define ECHOPRT 0002000
+#define ECHOKE  0004000
+#define FLUSHO  0010000
+#define PENDIN  0040000
+#define IEXTEN  0100000
+#define EXTPROC 0200000
+
+/* tcflow() and TCXONC use these */
+
+#define TCOOFF          0
+#define TCOON           1
+#define TCIOFF          2
+#define TCION           3
+
+/* tcflush() and TCFLSH use these */
+
+#define TCIFLUSH        0
+#define TCOFLUSH        1
+#define TCIOFLUSH       2
+
+/* tcsetattr uses these */
+
+#define TCSANOW         0
+#define TCSADRAIN       1
+#define TCSAFLUSH       2
+
+#endif  /* _XTENSA_TERMBITS_H */
diff --git a/arch/xtensa/include/asm/termios.h b/arch/xtensa/include/asm/termios.h
new file mode 100644
index 00000000000..4673f42f88a
--- /dev/null
+++ b/arch/xtensa/include/asm/termios.h
@@ -0,0 +1,105 @@
+/*
+ * include/asm-xtensa/termios.h
+ *
+ * Copied from SH.
+ *
+ * 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_TERMIOS_H
+#define _XTENSA_TERMIOS_H
+
+#include <asm/termbits.h>
+#include <asm/ioctls.h>
+
+struct winsize {
+        unsigned short ws_row;
+        unsigned short ws_col;
+        unsigned short ws_xpixel;
+        unsigned short ws_ypixel;
+};
+
+#define NCC 8
+struct termio {
+        unsigned short c_iflag;         /* input mode flags */
+        unsigned short c_oflag;         /* output mode flags */
+        unsigned short c_cflag;         /* control mode flags */
+        unsigned short c_lflag;         /* local mode flags */
+        unsigned char c_line;           /* line discipline */
+        unsigned char c_cc[NCC];        /* control characters */
+};
+
+/* Modem lines */
+
+#define TIOCM_LE        0x001
+#define TIOCM_DTR       0x002
+#define TIOCM_RTS       0x004
+#define TIOCM_ST        0x008
+#define TIOCM_SR        0x010
+#define TIOCM_CTS       0x020
+#define TIOCM_CAR       0x040
+#define TIOCM_RNG       0x080
+#define TIOCM_DSR       0x100
+#define TIOCM_CD        TIOCM_CAR
+#define TIOCM_RI        TIOCM_RNG
+#define TIOCM_OUT1      0x2000
+#define TIOCM_OUT2      0x4000
+#define TIOCM_LOOP      0x8000
+
+/* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */
+
+#ifdef __KERNEL__
+
+/*      intr=^C         quit=^\         erase=del       kill=^U
+        eof=^D          vtime=\0        vmin=\1         sxtc=\0
+        start=^Q        stop=^S         susp=^Z         eol=\0
+        reprint=^R      discard=^U      werase=^W       lnext=^V
+        eol2=\0
+*/
+#define INIT_C_CC "\003\034\177\025\004\0\1\0\021\023\032\0\022\017\027\026\0"
+
+/*
+ * Translate a "termio" structure into a "termios". Ugh.
+ */
+
+#define SET_LOW_TERMIOS_BITS(termios, termio, x) { \
+        unsigned short __tmp; \
+        get_user(__tmp,&(termio)->x); \
+        *(unsigned short *) &(termios)->x = __tmp; \
+}
+
+#define user_termio_to_kernel_termios(termios, termio) \
+({ \
+        SET_LOW_TERMIOS_BITS(termios, termio, c_iflag); \
+        SET_LOW_TERMIOS_BITS(termios, termio, c_oflag); \
+        SET_LOW_TERMIOS_BITS(termios, termio, c_cflag); \
+        SET_LOW_TERMIOS_BITS(termios, termio, c_lflag); \
+        copy_from_user((termios)->c_cc, (termio)->c_cc, NCC); \
+})
+
+/*
+ * Translate a "termios" structure into a "termio". Ugh.
+ */
+
+#define kernel_termios_to_user_termio(termio, termios) \
+({ \
+        put_user((termios)->c_iflag, &(termio)->c_iflag); \
+        put_user((termios)->c_oflag, &(termio)->c_oflag); \
+        put_user((termios)->c_cflag, &(termio)->c_cflag); \
+        put_user((termios)->c_lflag, &(termio)->c_lflag); \
+        put_user((termios)->c_line,  &(termio)->c_line); \
+        copy_to_user((termio)->c_cc, (termios)->c_cc, NCC); \
+})
+
+#define user_termios_to_kernel_termios(k, u) copy_from_user(k, u, sizeof(struct termios2))
+#define kernel_termios_to_user_termios(u, k) copy_to_user(u, k, sizeof(struct termios2))
+#define user_termios_to_kernel_termios_1(k, u) copy_from_user(k, u, sizeof(struct termios))
+#define kernel_termios_to_user_termios_1(u, k) copy_to_user(u, k, sizeof(struct termios))
+
+#endif  /* __KERNEL__ */
+
+#endif  /* _XTENSA_TERMIOS_H */
diff --git a/arch/xtensa/include/asm/topology.h b/arch/xtensa/include/asm/topology.h
new file mode 100644
index 00000000000..7309e38a0cc
--- /dev/null
+++ b/arch/xtensa/include/asm/topology.h
@@ -0,0 +1,16 @@
+/*
+ * include/asm-xtensa/topology.h
+ *
+ * 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_TOPOLOGY_H
+#define _XTENSA_TOPOLOGY_H
+
+#include <asm-generic/topology.h>
+
+#endif  /* _XTENSA_TOPOLOGY_H */
diff --git a/arch/xtensa/include/asm/xor.h b/arch/xtensa/include/asm/xor.h
new file mode 100644
index 00000000000..e7b1f083991
--- /dev/null
+++ b/arch/xtensa/include/asm/xor.h
@@ -0,0 +1,16 @@
+/*
+ * include/asm-xtensa/xor.h
+ *
+ * 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_XOR_H
+#define _XTENSA_XOR_H
+
+#include <asm-generic/xor.h>
+
+#endif
diff --git a/arch/xtensa/kernel/init_task.c b/arch/xtensa/kernel/init_task.c
new file mode 100644
index 00000000000..cd122fb7e48
--- /dev/null
+++ b/arch/xtensa/kernel/init_task.c
@@ -0,0 +1,31 @@
+/*
+ * arch/xtensa/kernel/init_task.c
+ *
+ * Xtensa Processor version.
+ *
+ * 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) 2007 Tensilica Inc.
+ *
+ * Chris Zankel <chris@zankel.net>
+ */
+
+#include <linux/mm.h>
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/init_task.h>
+#include <linux/module.h>
+#include <linux/mqueue.h>
+
+#include <asm/uaccess.h>
+
+static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
+static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
+union thread_union init_thread_union __init_task_data =
+        { INIT_THREAD_INFO(init_task) };
+
+struct task_struct init_task = INIT_TASK(init_task);
+
+EXPORT_SYMBOL(init_task);
diff --git a/arch/xtensa/kernel/io.c b/arch/xtensa/kernel/io.c
new file mode 100644
index 00000000000..5b65269b1d2
--- /dev/null
+++ b/arch/xtensa/kernel/io.c
@@ -0,0 +1,75 @@
+/*
+ * arch/xtensa/io.c
+ *
+ * IO primitives
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ *
+ * Copied from sparc.
+ *
+ * Chris Zankel <chris@zankel.net>
+ *
+ */
+
+#include <asm/io.h>
+#include <asm/byteorder.h>
+
+void outsb(unsigned long addr, const void *src, unsigned long count) {
+        while (count) {
+                count -= 1;
+                writeb(*(const char *)src, addr);
+                src += 1;
+                addr += 1;
+        }
+}
+
+void outsw(unsigned long addr, const void *src, unsigned long count) {
+        while (count) {
+                count -= 2;
+                writew(*(const short *)src, addr);
+                src += 2;
+                addr += 2;
+        }
+}
+
+void outsl(unsigned long addr, const void *src, unsigned long count) {
+        while (count) {
+                count -= 4;
+                writel(*(const long *)src, addr);
+                src += 4;
+                addr += 4;
+        }
+}
+
+void insb(unsigned long addr, void *dst, unsigned long count) {
+        while (count) {
+                count -= 1;
+                *(unsigned char *)dst = readb(addr);
+                dst += 1;
+                addr += 1;
+        }
+}
+
+void insw(unsigned long addr, void *dst, unsigned long count) {
+        while (count) {
+                count -= 2;
+                *(unsigned short *)dst = readw(addr);
+                dst += 2;
+                addr += 2;
+        }
+}
+
+void insl(unsigned long addr, void *dst, unsigned long count) {
+        while (count) {
+                count -= 4;
+                /*
+                 * XXX I am sure we are in for an unaligned trap here.
+                 */
+                *(unsigned long *)dst = readl(addr);
+                dst += 4;
+                addr += 4;
+        }
+}
diff --git a/arch/xtensa/platforms/iss/io.c b/arch/xtensa/platforms/iss/io.c
new file mode 100644
index 00000000000..571d0b24f89
--- /dev/null
+++ b/arch/xtensa/platforms/iss/io.c
@@ -0,0 +1,32 @@
+/* This file isn't really needed right now. */
+
+#if 0
+
+#include <asm/io.h>
+#include <platform/platform-iss/simcall.h>
+
+extern int __simc ();
+
+
+char iss_serial_getc()
+{
+  char c;
+  __simc( SYS_read, 0, &c, 1 );
+  return c;
+}
+
+void iss_serial_putc( char c )
+{
+  __simc( SYS_write, 1, &c, 1 );
+}
+
+void iss_serial_puts( char *s )
+{
+  if( s != 0 && *s != 0 )
+    __simc( SYS_write, 1, s, strlen(s) );
+}
+
+/*#error Need I/O ports to specific hardware!*/
+
+#endif
+