102 files changed, 12928 insertions, 0 deletions

diff --git a/include/asm-s390/a.out.h b/include/asm-s390/a.out.h
new file mode 100644
index 000000000000..72adee6ef338
--- /dev/null
+++ b/include/asm-s390/a.out.h
@@ -0,0 +1,38 @@
+/*
+ *  include/asm-s390/a.out.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *
+ *  Derived from "include/asm-i386/a.out.h"
+ *    Copyright (C) 1992, Linus Torvalds
+ *
+ * I don't think we'll ever need a.out ...
+ */
+
+#ifndef __S390_A_OUT_H__
+#define __S390_A_OUT_H__
+
+struct exec
+{
+  unsigned long a_info;         /* Use macros N_MAGIC, etc for access */
+  unsigned a_text;              /* length of text, in bytes */
+  unsigned a_data;              /* length of data, in bytes */
+  unsigned a_bss;               /* length of uninitialized data area for file, in bytes */
+  unsigned a_syms;              /* length of symbol table data in file, in bytes */
+  unsigned a_entry;             /* start address */
+  unsigned a_trsize;            /* length of relocation info for text, in bytes */
+  unsigned a_drsize;            /* length of relocation info for data, in bytes */
+};
+
+#define N_TRSIZE(a)     ((a).a_trsize)
+#define N_DRSIZE(a)     ((a).a_drsize)
+#define N_SYMSIZE(a)    ((a).a_syms)
+
+#ifdef __KERNEL__
+
+#define STACK_TOP       TASK_SIZE
+
+#endif
+
+#endif /* __A_OUT_GNU_H__ */
diff --git a/include/asm-s390/atomic.h b/include/asm-s390/atomic.h
new file mode 100644
index 000000000000..d5a05cf47168
--- /dev/null
+++ b/include/asm-s390/atomic.h
@@ -0,0 +1,207 @@
+#ifndef __ARCH_S390_ATOMIC__
+#define __ARCH_S390_ATOMIC__
+
+/*
+ *  include/asm-s390/atomic.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999-2003 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com),
+ *               Denis Joseph Barrow,
+ *               Arnd Bergmann (arndb@de.ibm.com)
+ *
+ *  Derived from "include/asm-i386/bitops.h"
+ *    Copyright (C) 1992, Linus Torvalds
+ *
+ */
+
+/*
+ * Atomic operations that C can't guarantee us.  Useful for
+ * resource counting etc..
+ * S390 uses 'Compare And Swap' for atomicity in SMP enviroment
+ */
+
+typedef struct {
+        volatile int counter;
+} __attribute__ ((aligned (4))) atomic_t;
+#define ATOMIC_INIT(i)  { (i) }
+
+#ifdef __KERNEL__
+
+#define __CS_LOOP(ptr, op_val, op_string) ({                            \
+        typeof(ptr->counter) old_val, new_val;                          \
+        __asm__ __volatile__("   l     %0,0(%3)\n"                      \
+                             "0: lr    %1,%0\n"                         \
+                             op_string "  %1,%4\n"                      \
+                             "   cs    %0,%1,0(%3)\n"                   \
+                             "   jl    0b"                              \
+                             : "=&d" (old_val), "=&d" (new_val),        \
+                               "=m" (((atomic_t *)(ptr))->counter)      \
+                             : "a" (ptr), "d" (op_val),                 \
+                               "m" (((atomic_t *)(ptr))->counter)       \
+                             : "cc", "memory" );                        \
+        new_val;                                                        \
+})
+#define atomic_read(v)          ((v)->counter)
+#define atomic_set(v,i)         (((v)->counter) = (i))
+
+static __inline__ void atomic_add(int i, atomic_t * v)
+{
+               __CS_LOOP(v, i, "ar");
+}
+static __inline__ int atomic_add_return(int i, atomic_t * v)
+{
+        return __CS_LOOP(v, i, "ar");
+}
+static __inline__ int atomic_add_negative(int i, atomic_t * v)
+{
+        return __CS_LOOP(v, i, "ar") < 0;
+}
+static __inline__ void atomic_sub(int i, atomic_t * v)
+{
+               __CS_LOOP(v, i, "sr");
+}
+static __inline__ int atomic_sub_return(int i, atomic_t * v)
+{
+        return __CS_LOOP(v, i, "sr");
+}
+static __inline__ void atomic_inc(volatile atomic_t * v)
+{
+               __CS_LOOP(v, 1, "ar");
+}
+static __inline__ int atomic_inc_return(volatile atomic_t * v)
+{
+        return __CS_LOOP(v, 1, "ar");
+}
+
+static __inline__ int atomic_inc_and_test(volatile atomic_t * v)
+{
+        return __CS_LOOP(v, 1, "ar") == 0;
+}
+static __inline__ void atomic_dec(volatile atomic_t * v)
+{
+               __CS_LOOP(v, 1, "sr");
+}
+static __inline__ int atomic_dec_return(volatile atomic_t * v)
+{
+        return __CS_LOOP(v, 1, "sr");
+}
+static __inline__ int atomic_dec_and_test(volatile atomic_t * v)
+{
+        return __CS_LOOP(v, 1, "sr") == 0;
+}
+static __inline__ void atomic_clear_mask(unsigned long mask, atomic_t * v)
+{
+               __CS_LOOP(v, ~mask, "nr");
+}
+static __inline__ void atomic_set_mask(unsigned long mask, atomic_t * v)
+{
+               __CS_LOOP(v, mask, "or");
+}
+#undef __CS_LOOP
+
+#ifdef __s390x__
+typedef struct {
+        volatile long long counter;
+} __attribute__ ((aligned (8))) atomic64_t;
+#define ATOMIC64_INIT(i)  { (i) }
+
+#define __CSG_LOOP(ptr, op_val, op_string) ({                           \
+        typeof(ptr->counter) old_val, new_val;                          \
+        __asm__ __volatile__("   lg    %0,0(%3)\n"                      \
+                             "0: lgr   %1,%0\n"                         \
+                             op_string "  %1,%4\n"                      \
+                             "   csg   %0,%1,0(%3)\n"                   \
+                             "   jl    0b"                              \
+                             : "=&d" (old_val), "=&d" (new_val),        \
+                               "=m" (((atomic_t *)(ptr))->counter)      \
+                             : "a" (ptr), "d" (op_val),                 \
+                               "m" (((atomic_t *)(ptr))->counter)       \
+                             : "cc", "memory" );                        \
+        new_val;                                                        \
+})
+#define atomic64_read(v)          ((v)->counter)
+#define atomic64_set(v,i)         (((v)->counter) = (i))
+
+static __inline__ void atomic64_add(int i, atomic64_t * v)
+{
+               __CSG_LOOP(v, i, "agr");
+}
+static __inline__ long long atomic64_add_return(int i, atomic64_t * v)
+{
+        return __CSG_LOOP(v, i, "agr");
+}
+static __inline__ long long atomic64_add_negative(int i, atomic64_t * v)
+{
+        return __CSG_LOOP(v, i, "agr") < 0;
+}
+static __inline__ void atomic64_sub(int i, atomic64_t * v)
+{
+               __CSG_LOOP(v, i, "sgr");
+}
+static __inline__ void atomic64_inc(volatile atomic64_t * v)
+{
+               __CSG_LOOP(v, 1, "agr");
+}
+static __inline__ long long atomic64_inc_return(volatile atomic64_t * v)
+{
+        return __CSG_LOOP(v, 1, "agr");
+}
+static __inline__ long long atomic64_inc_and_test(volatile atomic64_t * v)
+{
+        return __CSG_LOOP(v, 1, "agr") == 0;
+}
+static __inline__ void atomic64_dec(volatile atomic64_t * v)
+{
+               __CSG_LOOP(v, 1, "sgr");
+}
+static __inline__ long long atomic64_dec_return(volatile atomic64_t * v)
+{
+        return __CSG_LOOP(v, 1, "sgr");
+}
+static __inline__ long long atomic64_dec_and_test(volatile atomic64_t * v)
+{
+        return __CSG_LOOP(v, 1, "sgr") == 0;
+}
+static __inline__ void atomic64_clear_mask(unsigned long mask, atomic64_t * v)
+{
+               __CSG_LOOP(v, ~mask, "ngr");
+}
+static __inline__ void atomic64_set_mask(unsigned long mask, atomic64_t * v)
+{
+               __CSG_LOOP(v, mask, "ogr");
+}
+
+#undef __CSG_LOOP
+#endif
+
+/*
+  returns 0  if expected_oldval==value in *v ( swap was successful )
+  returns 1  if unsuccessful.
+
+  This is non-portable, use bitops or spinlocks instead!
+*/
+static __inline__ int
+atomic_compare_and_swap(int expected_oldval,int new_val,atomic_t *v)
+{
+        int retval;
+
+        __asm__ __volatile__(
+                "  lr   %0,%3\n"
+                "  cs   %0,%4,0(%2)\n"
+                "  ipm  %0\n"
+                "  srl  %0,28\n"
+                "0:"
+                : "=&d" (retval), "=m" (v->counter)
+                : "a" (v), "d" (expected_oldval) , "d" (new_val),
+                  "m" (v->counter) : "cc", "memory" );
+        return retval;
+}
+
+#define smp_mb__before_atomic_dec()     smp_mb()
+#define smp_mb__after_atomic_dec()      smp_mb()
+#define smp_mb__before_atomic_inc()     smp_mb()
+#define smp_mb__after_atomic_inc()      smp_mb()
+
+#endif /* __KERNEL__ */
+#endif /* __ARCH_S390_ATOMIC__  */
diff --git a/include/asm-s390/bitops.h b/include/asm-s390/bitops.h
new file mode 100644
index 000000000000..16bb08499c7f
--- /dev/null
+++ b/include/asm-s390/bitops.h
@@ -0,0 +1,1188 @@
+#ifndef _S390_BITOPS_H
+#define _S390_BITOPS_H
+
+/*
+ *  include/asm-s390/bitops.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
+ *
+ *  Derived from "include/asm-i386/bitops.h"
+ *    Copyright (C) 1992, Linus Torvalds
+ *
+ */
+#include <linux/config.h>
+#include <linux/compiler.h>
+
+/*
+ * 32 bit bitops format:
+ * bit 0 is the LSB of *addr; bit 31 is the MSB of *addr;
+ * bit 32 is the LSB of *(addr+4). That combined with the
+ * big endian byte order on S390 give the following bit
+ * order in memory:
+ *    1f 1e 1d 1c 1b 1a 19 18 17 16 15 14 13 12 11 10 \
+ *    0f 0e 0d 0c 0b 0a 09 08 07 06 05 04 03 02 01 00
+ * after that follows the next long with bit numbers
+ *    3f 3e 3d 3c 3b 3a 39 38 37 36 35 34 33 32 31 30
+ *    2f 2e 2d 2c 2b 2a 29 28 27 26 25 24 23 22 21 20
+ * The reason for this bit ordering is the fact that
+ * in the architecture independent code bits operations
+ * of the form "flags |= (1 << bitnr)" are used INTERMIXED
+ * with operation of the form "set_bit(bitnr, flags)".
+ *
+ * 64 bit bitops format:
+ * bit 0 is the LSB of *addr; bit 63 is the MSB of *addr;
+ * bit 64 is the LSB of *(addr+8). That combined with the
+ * big endian byte order on S390 give the following bit
+ * order in memory:
+ *    3f 3e 3d 3c 3b 3a 39 38 37 36 35 34 33 32 31 30
+ *    2f 2e 2d 2c 2b 2a 29 28 27 26 25 24 23 22 21 20
+ *    1f 1e 1d 1c 1b 1a 19 18 17 16 15 14 13 12 11 10
+ *    0f 0e 0d 0c 0b 0a 09 08 07 06 05 04 03 02 01 00
+ * after that follows the next long with bit numbers
+ *    7f 7e 7d 7c 7b 7a 79 78 77 76 75 74 73 72 71 70
+ *    6f 6e 6d 6c 6b 6a 69 68 67 66 65 64 63 62 61 60
+ *    5f 5e 5d 5c 5b 5a 59 58 57 56 55 54 53 52 51 50
+ *    4f 4e 4d 4c 4b 4a 49 48 47 46 45 44 43 42 41 40
+ * The reason for this bit ordering is the fact that
+ * in the architecture independent code bits operations
+ * of the form "flags |= (1 << bitnr)" are used INTERMIXED
+ * with operation of the form "set_bit(bitnr, flags)".
+ */
+
+/* set ALIGN_CS to 1 if the SMP safe bit operations should
+ * align the address to 4 byte boundary. It seems to work
+ * without the alignment. 
+ */
+#ifdef __KERNEL__
+#define ALIGN_CS 0
+#else
+#define ALIGN_CS 1
+#ifndef CONFIG_SMP
+#error "bitops won't work without CONFIG_SMP"
+#endif
+#endif
+
+/* bitmap tables from arch/S390/kernel/bitmap.S */
+extern const char _oi_bitmap[];
+extern const char _ni_bitmap[];
+extern const char _zb_findmap[];
+extern const char _sb_findmap[];
+
+#ifndef __s390x__
+
+#define __BITOPS_ALIGN          3
+#define __BITOPS_WORDSIZE       32
+#define __BITOPS_OR             "or"
+#define __BITOPS_AND            "nr"
+#define __BITOPS_XOR            "xr"
+
+#define __BITOPS_LOOP(__old, __new, __addr, __val, __op_string)         \
+        __asm__ __volatile__("   l   %0,0(%4)\n"                        \
+                             "0: lr  %1,%0\n"                           \
+                             __op_string "  %1,%3\n"                    \
+                             "   cs  %0,%1,0(%4)\n"                     \
+                             "   jl  0b"                                \
+                             : "=&d" (__old), "=&d" (__new),            \
+                               "=m" (*(unsigned long *) __addr)         \
+                             : "d" (__val), "a" (__addr),               \
+                               "m" (*(unsigned long *) __addr) : "cc" );
+
+#else /* __s390x__ */
+
+#define __BITOPS_ALIGN          7
+#define __BITOPS_WORDSIZE       64
+#define __BITOPS_OR             "ogr"
+#define __BITOPS_AND            "ngr"
+#define __BITOPS_XOR            "xgr"
+
+#define __BITOPS_LOOP(__old, __new, __addr, __val, __op_string)         \
+        __asm__ __volatile__("   lg  %0,0(%4)\n"                        \
+                             "0: lgr %1,%0\n"                           \
+                             __op_string "  %1,%3\n"                    \
+                             "   csg %0,%1,0(%4)\n"                     \
+                             "   jl  0b"                                \
+                             : "=&d" (__old), "=&d" (__new),            \
+                               "=m" (*(unsigned long *) __addr)         \
+                             : "d" (__val), "a" (__addr),               \
+                               "m" (*(unsigned long *) __addr) : "cc" );
+
+#endif /* __s390x__ */
+
+#define __BITOPS_WORDS(bits) (((bits)+__BITOPS_WORDSIZE-1)/__BITOPS_WORDSIZE)
+#define __BITOPS_BARRIER() __asm__ __volatile__ ( "" : : : "memory" )
+
+#ifdef CONFIG_SMP
+/*
+ * SMP safe set_bit routine based on compare and swap (CS)
+ */
+static inline void set_bit_cs(unsigned long nr, volatile unsigned long *ptr)
+{
+        unsigned long addr, old, new, mask;
+
+        addr = (unsigned long) ptr;
+#if ALIGN_CS == 1
+        nr += (addr & __BITOPS_ALIGN) << 3;    /* add alignment to bit number */
+        addr ^= addr & __BITOPS_ALIGN;         /* align address to 8 */
+#endif
+        /* calculate address for CS */
+        addr += (nr ^ (nr & (__BITOPS_WORDSIZE - 1))) >> 3;
+        /* make OR mask */
+        mask = 1UL << (nr & (__BITOPS_WORDSIZE - 1));
+        /* Do the atomic update. */
+        __BITOPS_LOOP(old, new, addr, mask, __BITOPS_OR);
+}
+
+/*
+ * SMP safe clear_bit routine based on compare and swap (CS)
+ */
+static inline void clear_bit_cs(unsigned long nr, volatile unsigned long *ptr)
+{
+        unsigned long addr, old, new, mask;
+
+        addr = (unsigned long) ptr;
+#if ALIGN_CS == 1
+        nr += (addr & __BITOPS_ALIGN) << 3;    /* add alignment to bit number */
+        addr ^= addr & __BITOPS_ALIGN;         /* align address to 8 */
+#endif
+        /* calculate address for CS */
+        addr += (nr ^ (nr & (__BITOPS_WORDSIZE - 1))) >> 3;
+        /* make AND mask */
+        mask = ~(1UL << (nr & (__BITOPS_WORDSIZE - 1)));
+        /* Do the atomic update. */
+        __BITOPS_LOOP(old, new, addr, mask, __BITOPS_AND);
+}
+
+/*
+ * SMP safe change_bit routine based on compare and swap (CS)
+ */
+static inline void change_bit_cs(unsigned long nr, volatile unsigned long *ptr)
+{
+        unsigned long addr, old, new, mask;
+
+        addr = (unsigned long) ptr;
+#if ALIGN_CS == 1
+        nr += (addr & __BITOPS_ALIGN) << 3;    /* add alignment to bit number */
+        addr ^= addr & __BITOPS_ALIGN;         /* align address to 8 */
+#endif
+        /* calculate address for CS */
+        addr += (nr ^ (nr & (__BITOPS_WORDSIZE - 1))) >> 3;
+        /* make XOR mask */
+        mask = 1UL << (nr & (__BITOPS_WORDSIZE - 1));
+        /* Do the atomic update. */
+        __BITOPS_LOOP(old, new, addr, mask, __BITOPS_XOR);
+}
+
+/*
+ * SMP safe test_and_set_bit routine based on compare and swap (CS)
+ */
+static inline int
+test_and_set_bit_cs(unsigned long nr, volatile unsigned long *ptr)
+{
+        unsigned long addr, old, new, mask;
+
+        addr = (unsigned long) ptr;
+#if ALIGN_CS == 1
+        nr += (addr & __BITOPS_ALIGN) << 3;    /* add alignment to bit number */
+        addr ^= addr & __BITOPS_ALIGN;         /* align address to 8 */
+#endif
+        /* calculate address for CS */
+        addr += (nr ^ (nr & (__BITOPS_WORDSIZE - 1))) >> 3;
+        /* make OR/test mask */
+        mask = 1UL << (nr & (__BITOPS_WORDSIZE - 1));
+        /* Do the atomic update. */
+        __BITOPS_LOOP(old, new, addr, mask, __BITOPS_OR);
+        __BITOPS_BARRIER();
+        return (old & mask) != 0;
+}
+
+/*
+ * SMP safe test_and_clear_bit routine based on compare and swap (CS)
+ */
+static inline int
+test_and_clear_bit_cs(unsigned long nr, volatile unsigned long *ptr)
+{
+        unsigned long addr, old, new, mask;
+
+        addr = (unsigned long) ptr;
+#if ALIGN_CS == 1
+        nr += (addr & __BITOPS_ALIGN) << 3;    /* add alignment to bit number */
+        addr ^= addr & __BITOPS_ALIGN;         /* align address to 8 */
+#endif
+        /* calculate address for CS */
+        addr += (nr ^ (nr & (__BITOPS_WORDSIZE - 1))) >> 3;
+        /* make AND/test mask */
+        mask = ~(1UL << (nr & (__BITOPS_WORDSIZE - 1)));
+        /* Do the atomic update. */
+        __BITOPS_LOOP(old, new, addr, mask, __BITOPS_AND);
+        __BITOPS_BARRIER();
+        return (old ^ new) != 0;
+}
+
+/*
+ * SMP safe test_and_change_bit routine based on compare and swap (CS) 
+ */
+static inline int
+test_and_change_bit_cs(unsigned long nr, volatile unsigned long *ptr)
+{
+        unsigned long addr, old, new, mask;
+
+        addr = (unsigned long) ptr;
+#if ALIGN_CS == 1
+        nr += (addr & __BITOPS_ALIGN) << 3;  /* add alignment to bit number */
+        addr ^= addr & __BITOPS_ALIGN;       /* align address to 8 */
+#endif
+        /* calculate address for CS */
+        addr += (nr ^ (nr & (__BITOPS_WORDSIZE - 1))) >> 3;
+        /* make XOR/test mask */
+        mask = 1UL << (nr & (__BITOPS_WORDSIZE - 1));
+        /* Do the atomic update. */
+        __BITOPS_LOOP(old, new, addr, mask, __BITOPS_XOR);
+        __BITOPS_BARRIER();
+        return (old & mask) != 0;
+}
+#endif /* CONFIG_SMP */
+
+/*
+ * fast, non-SMP set_bit routine
+ */
+static inline void __set_bit(unsigned long nr, volatile unsigned long *ptr)
+{
+        unsigned long addr;
+
+        addr = (unsigned long) ptr + ((nr ^ (__BITOPS_WORDSIZE - 8)) >> 3);
+        asm volatile("oc 0(1,%1),0(%2)"
+                     : "=m" (*(char *) addr)
+                     : "a" (addr), "a" (_oi_bitmap + (nr & 7)),
+                       "m" (*(char *) addr) : "cc" );
+}
+
+static inline void 
+__constant_set_bit(const unsigned long nr, volatile unsigned long *ptr)
+{
+        unsigned long addr;
+
+        addr = ((unsigned long) ptr) + ((nr ^ (__BITOPS_WORDSIZE - 8)) >> 3);
+        switch (nr&7) {
+        case 0:
+                asm volatile ("oi 0(%1),0x01" : "=m" (*(char *) addr)
+                              : "a" (addr), "m" (*(char *) addr) : "cc" );
+                break;
+        case 1:
+                asm volatile ("oi 0(%1),0x02" : "=m" (*(char *) addr)
+                              : "a" (addr), "m" (*(char *) addr) : "cc" );
+                break;
+        case 2:
+                asm volatile ("oi 0(%1),0x04" : "=m" (*(char *) addr)
+                              : "a" (addr), "m" (*(char *) addr) : "cc" );
+                break;
+        case 3:
+                asm volatile ("oi 0(%1),0x08" : "=m" (*(char *) addr)
+                              : "a" (addr), "m" (*(char *) addr) : "cc" );
+                break;
+        case 4:
+                asm volatile ("oi 0(%1),0x10" : "=m" (*(char *) addr)
+                              : "a" (addr), "m" (*(char *) addr) : "cc" );
+                break;
+        case 5:
+                asm volatile ("oi 0(%1),0x20" : "=m" (*(char *) addr)
+                              : "a" (addr), "m" (*(char *) addr) : "cc" );
+                break;
+        case 6:
+                asm volatile ("oi 0(%1),0x40" : "=m" (*(char *) addr)
+                              : "a" (addr), "m" (*(char *) addr) : "cc" );
+                break;
+        case 7:
+                asm volatile ("oi 0(%1),0x80" : "=m" (*(char *) addr)
+                              : "a" (addr), "m" (*(char *) addr) : "cc" );
+                break;
+        }
+}
+
+#define set_bit_simple(nr,addr) \
+(__builtin_constant_p((nr)) ? \
+ __constant_set_bit((nr),(addr)) : \
+ __set_bit((nr),(addr)) )
+
+/*
+ * fast, non-SMP clear_bit routine
+ */
+static inline void 
+__clear_bit(unsigned long nr, volatile unsigned long *ptr)
+{
+        unsigned long addr;
+
+        addr = (unsigned long) ptr + ((nr ^ (__BITOPS_WORDSIZE - 8)) >> 3);
+        asm volatile("nc 0(1,%1),0(%2)"
+                     : "=m" (*(char *) addr)
+                     : "a" (addr), "a" (_ni_bitmap + (nr & 7)),
+                       "m" (*(char *) addr) : "cc" );
+}
+
+static inline void 
+__constant_clear_bit(const unsigned long nr, volatile unsigned long *ptr)
+{
+        unsigned long addr;
+
+        addr = ((unsigned long) ptr) + ((nr ^ (__BITOPS_WORDSIZE - 8)) >> 3);
+        switch (nr&7) {
+        case 0:
+                asm volatile ("ni 0(%1),0xFE" : "=m" (*(char *) addr)
+                              : "a" (addr), "m" (*(char *) addr) : "cc" );
+                break;
+        case 1:
+                asm volatile ("ni 0(%1),0xFD": "=m" (*(char *) addr)
+                              : "a" (addr), "m" (*(char *) addr) : "cc" );
+                break;
+        case 2:
+                asm volatile ("ni 0(%1),0xFB" : "=m" (*(char *) addr)
+                              : "a" (addr), "m" (*(char *) addr) : "cc" );
+                break;
+        case 3:
+                asm volatile ("ni 0(%1),0xF7" : "=m" (*(char *) addr)
+                              : "a" (addr), "m" (*(char *) addr) : "cc" );
+                break;
+        case 4:
+                asm volatile ("ni 0(%1),0xEF" : "=m" (*(char *) addr)
+                              : "a" (addr), "m" (*(char *) addr) : "cc" );
+                break;
+        case 5:
+                asm volatile ("ni 0(%1),0xDF" : "=m" (*(char *) addr)
+                              : "a" (addr), "m" (*(char *) addr) : "cc" );
+                break;
+        case 6:
+                asm volatile ("ni 0(%1),0xBF" : "=m" (*(char *) addr)
+                              : "a" (addr), "m" (*(char *) addr) : "cc" );
+                break;
+        case 7:
+                asm volatile ("ni 0(%1),0x7F" : "=m" (*(char *) addr)
+                              : "a" (addr), "m" (*(char *) addr) : "cc" );
+                break;
+        }
+}
+
+#define clear_bit_simple(nr,addr) \
+(__builtin_constant_p((nr)) ? \
+ __constant_clear_bit((nr),(addr)) : \
+ __clear_bit((nr),(addr)) )
+
+/* 
+ * fast, non-SMP change_bit routine 
+ */
+static inline void __change_bit(unsigned long nr, volatile unsigned long *ptr)
+{
+        unsigned long addr;
+
+        addr = (unsigned long) ptr + ((nr ^ (__BITOPS_WORDSIZE - 8)) >> 3);
+        asm volatile("xc 0(1,%1),0(%2)"
+                     :  "=m" (*(char *) addr)
+                     : "a" (addr), "a" (_oi_bitmap + (nr & 7)),
+                       "m" (*(char *) addr) : "cc" );
+}
+
+static inline void 
+__constant_change_bit(const unsigned long nr, volatile unsigned long *ptr) 
+{
+        unsigned long addr;
+
+        addr = ((unsigned long) ptr) + ((nr ^ (__BITOPS_WORDSIZE - 8)) >> 3);
+        switch (nr&7) {
+        case 0:
+                asm volatile ("xi 0(%1),0x01" : "=m" (*(char *) addr)
+                              : "a" (addr), "m" (*(char *) addr) : "cc" );
+                break;
+        case 1:
+                asm volatile ("xi 0(%1),0x02" : "=m" (*(char *) addr)
+                              : "a" (addr), "m" (*(char *) addr) : "cc" );
+                break;
+        case 2:
+                asm volatile ("xi 0(%1),0x04" : "=m" (*(char *) addr)
+                              : "a" (addr), "m" (*(char *) addr) : "cc" );
+                break;
+        case 3:
+                asm volatile ("xi 0(%1),0x08" : "=m" (*(char *) addr)
+                              : "a" (addr), "m" (*(char *) addr) : "cc" );
+                break;
+        case 4:
+                asm volatile ("xi 0(%1),0x10" : "=m" (*(char *) addr)
+                              : "a" (addr), "m" (*(char *) addr) : "cc" );
+                break;
+        case 5:
+                asm volatile ("xi 0(%1),0x20" : "=m" (*(char *) addr)
+                              : "a" (addr), "m" (*(char *) addr) : "cc" );
+                break;
+        case 6:
+                asm volatile ("xi 0(%1),0x40" : "=m" (*(char *) addr)
+                              : "a" (addr), "m" (*(char *) addr) : "cc" );
+                break;
+        case 7:
+                asm volatile ("xi 0(%1),0x80" : "=m" (*(char *) addr)
+                              : "a" (addr), "m" (*(char *) addr) : "cc" );
+                break;
+        }
+}
+
+#define change_bit_simple(nr,addr) \
+(__builtin_constant_p((nr)) ? \
+ __constant_change_bit((nr),(addr)) : \
+ __change_bit((nr),(addr)) )
+
+/*
+ * fast, non-SMP test_and_set_bit routine
+ */
+static inline int
+test_and_set_bit_simple(unsigned long nr, volatile unsigned long *ptr)
+{
+        unsigned long addr;
+        unsigned char ch;
+
+        addr = (unsigned long) ptr + ((nr ^ (__BITOPS_WORDSIZE - 8)) >> 3);
+        ch = *(unsigned char *) addr;
+        asm volatile("oc 0(1,%1),0(%2)"
+                     : "=m" (*(char *) addr)
+                     : "a" (addr), "a" (_oi_bitmap + (nr & 7)),
+                       "m" (*(char *) addr) : "cc", "memory" );
+        return (ch >> (nr & 7)) & 1;
+}
+#define __test_and_set_bit(X,Y)         test_and_set_bit_simple(X,Y)
+
+/*
+ * fast, non-SMP test_and_clear_bit routine
+ */
+static inline int
+test_and_clear_bit_simple(unsigned long nr, volatile unsigned long *ptr)
+{
+        unsigned long addr;
+        unsigned char ch;
+
+        addr = (unsigned long) ptr + ((nr ^ (__BITOPS_WORDSIZE - 8)) >> 3);
+        ch = *(unsigned char *) addr;
+        asm volatile("nc 0(1,%1),0(%2)"
+                     : "=m" (*(char *) addr)
+                     : "a" (addr), "a" (_ni_bitmap + (nr & 7)),
+                       "m" (*(char *) addr) : "cc", "memory" );
+        return (ch >> (nr & 7)) & 1;
+}
+#define __test_and_clear_bit(X,Y)       test_and_clear_bit_simple(X,Y)
+
+/*
+ * fast, non-SMP test_and_change_bit routine
+ */
+static inline int
+test_and_change_bit_simple(unsigned long nr, volatile unsigned long *ptr)
+{
+        unsigned long addr;
+        unsigned char ch;
+
+        addr = (unsigned long) ptr + ((nr ^ (__BITOPS_WORDSIZE - 8)) >> 3);
+        ch = *(unsigned char *) addr;
+        asm volatile("xc 0(1,%1),0(%2)"
+                     : "=m" (*(char *) addr)
+                     : "a" (addr), "a" (_oi_bitmap + (nr & 7)),
+                       "m" (*(char *) addr) : "cc", "memory" );
+        return (ch >> (nr & 7)) & 1;
+}
+#define __test_and_change_bit(X,Y)      test_and_change_bit_simple(X,Y)
+
+#ifdef CONFIG_SMP
+#define set_bit             set_bit_cs
+#define clear_bit           clear_bit_cs
+#define change_bit          change_bit_cs
+#define test_and_set_bit    test_and_set_bit_cs
+#define test_and_clear_bit  test_and_clear_bit_cs
+#define test_and_change_bit test_and_change_bit_cs
+#else
+#define set_bit             set_bit_simple
+#define clear_bit           clear_bit_simple
+#define change_bit          change_bit_simple
+#define test_and_set_bit    test_and_set_bit_simple
+#define test_and_clear_bit  test_and_clear_bit_simple
+#define test_and_change_bit test_and_change_bit_simple
+#endif
+
+
+/*
+ * This routine doesn't need to be atomic.
+ */
+
+static inline int __test_bit(unsigned long nr, const volatile unsigned long *ptr)
+{
+        unsigned long addr;
+        unsigned char ch;
+
+        addr = (unsigned long) ptr + ((nr ^ (__BITOPS_WORDSIZE - 8)) >> 3);
+        ch = *(volatile unsigned char *) addr;
+        return (ch >> (nr & 7)) & 1;
+}
+
+static inline int 
+__constant_test_bit(unsigned long nr, const volatile unsigned long *addr) {
+    return (((volatile char *) addr)
+            [(nr^(__BITOPS_WORDSIZE-8))>>3] & (1<<(nr&7)));
+}
+
+#define test_bit(nr,addr) \
+(__builtin_constant_p((nr)) ? \
+ __constant_test_bit((nr),(addr)) : \
+ __test_bit((nr),(addr)) )
+
+#ifndef __s390x__
+
+/*
+ * Find-bit routines..
+ */
+static inline int
+find_first_zero_bit(const unsigned long * addr, unsigned int size)
+{
+        typedef struct { long _[__BITOPS_WORDS(size)]; } addrtype;
+        unsigned long cmp, count;
+        unsigned int res;
+
+        if (!size)
+                return 0;
+        __asm__("   lhi  %1,-1\n"
+                "   lr   %2,%3\n"
+                "   slr  %0,%0\n"
+                "   ahi  %2,31\n"
+                "   srl  %2,5\n"
+                "0: c    %1,0(%0,%4)\n"
+                "   jne  1f\n"
+                "   ahi  %0,4\n"
+                "   brct %2,0b\n"
+                "   lr   %0,%3\n"
+                "   j    4f\n"
+                "1: l    %2,0(%0,%4)\n"
+                "   sll  %0,3\n"
+                "   lhi  %1,0xff\n"
+                "   tml  %2,0xffff\n"
+                "   jno  2f\n"
+                "   ahi  %0,16\n"
+                "   srl  %2,16\n"
+                "2: tml  %2,0x00ff\n"
+                "   jno  3f\n"
+                "   ahi  %0,8\n"
+                "   srl  %2,8\n"
+                "3: nr   %2,%1\n"
+                "   ic   %2,0(%2,%5)\n"
+                "   alr  %0,%2\n"
+                "4:"
+                : "=&a" (res), "=&d" (cmp), "=&a" (count)
+                : "a" (size), "a" (addr), "a" (&_zb_findmap),
+                  "m" (*(addrtype *) addr) : "cc" );
+        return (res < size) ? res : size;
+}
+
+static inline int
+find_first_bit(const unsigned long * addr, unsigned int size)
+{
+        typedef struct { long _[__BITOPS_WORDS(size)]; } addrtype;
+        unsigned long cmp, count;
+        unsigned int res;
+
+        if (!size)
+                return 0;
+        __asm__("   slr  %1,%1\n"
+                "   lr   %2,%3\n"
+                "   slr  %0,%0\n"
+                "   ahi  %2,31\n"
+                "   srl  %2,5\n"
+                "0: c    %1,0(%0,%4)\n"
+                "   jne  1f\n"
+                "   ahi  %0,4\n"
+                "   brct %2,0b\n"
+                "   lr   %0,%3\n"
+                "   j    4f\n"
+                "1: l    %2,0(%0,%4)\n"
+                "   sll  %0,3\n"
+                "   lhi  %1,0xff\n"
+                "   tml  %2,0xffff\n"
+                "   jnz  2f\n"
+                "   ahi  %0,16\n"
+                "   srl  %2,16\n"
+                "2: tml  %2,0x00ff\n"
+                "   jnz  3f\n"
+                "   ahi  %0,8\n"
+                "   srl  %2,8\n"
+                "3: nr   %2,%1\n"
+                "   ic   %2,0(%2,%5)\n"
+                "   alr  %0,%2\n"
+                "4:"
+                : "=&a" (res), "=&d" (cmp), "=&a" (count)
+                : "a" (size), "a" (addr), "a" (&_sb_findmap),
+                  "m" (*(addrtype *) addr) : "cc" );
+        return (res < size) ? res : size;
+}
+
+static inline int
+find_next_zero_bit (const unsigned long * addr, int size, int offset)
+{
+        unsigned long * p = ((unsigned long *) addr) + (offset >> 5);
+        unsigned long bitvec, reg;
+        int set, bit = offset & 31, res;
+
+        if (bit) {
+                /*
+                 * Look for zero in first word
+                 */
+                bitvec = (*p) >> bit;
+                __asm__("   slr  %0,%0\n"
+                        "   lhi  %2,0xff\n"
+                        "   tml  %1,0xffff\n"
+                        "   jno  0f\n"
+                        "   ahi  %0,16\n"
+                        "   srl  %1,16\n"
+                        "0: tml  %1,0x00ff\n"
+                        "   jno  1f\n"
+                        "   ahi  %0,8\n"
+                        "   srl  %1,8\n"
+                        "1: nr   %1,%2\n"
+                        "   ic   %1,0(%1,%3)\n"
+                        "   alr  %0,%1"
+                        : "=&d" (set), "+a" (bitvec), "=&d" (reg)
+                        : "a" (&_zb_findmap) : "cc" );
+                if (set < (32 - bit))
+                        return set + offset;
+                offset += 32 - bit;
+                p++;
+        }
+        /*
+         * No zero yet, search remaining full words for a zero
+         */
+        res = find_first_zero_bit (p, size - 32 * (p - (unsigned long *) addr));
+        return (offset + res);
+}
+
+static inline int
+find_next_bit (const unsigned long * addr, int size, int offset)
+{
+        unsigned long * p = ((unsigned long *) addr) + (offset >> 5);
+        unsigned long bitvec, reg;
+        int set, bit = offset & 31, res;
+
+        if (bit) {
+                /*
+                 * Look for set bit in first word
+                 */
+                bitvec = (*p) >> bit;
+                __asm__("   slr  %0,%0\n"
+                        "   lhi  %2,0xff\n"
+                        "   tml  %1,0xffff\n"
+                        "   jnz  0f\n"
+                        "   ahi  %0,16\n"
+                        "   srl  %1,16\n"
+                        "0: tml  %1,0x00ff\n"
+                        "   jnz  1f\n"
+                        "   ahi  %0,8\n"
+                        "   srl  %1,8\n"
+                        "1: nr   %1,%2\n"
+                        "   ic   %1,0(%1,%3)\n"
+                        "   alr  %0,%1"
+                        : "=&d" (set), "+a" (bitvec), "=&d" (reg)
+                        : "a" (&_sb_findmap) : "cc" );
+                if (set < (32 - bit))
+                        return set + offset;
+                offset += 32 - bit;
+                p++;
+        }
+        /*
+         * No set bit yet, search remaining full words for a bit
+         */
+        res = find_first_bit (p, size - 32 * (p - (unsigned long *) addr));
+        return (offset + res);
+}
+
+#else /* __s390x__ */
+
+/*
+ * Find-bit routines..
+ */
+static inline unsigned long
+find_first_zero_bit(const unsigned long * addr, unsigned long size)
+{
+        typedef struct { long _[__BITOPS_WORDS(size)]; } addrtype;
+        unsigned long res, cmp, count;
+
+        if (!size)
+                return 0;
+        __asm__("   lghi  %1,-1\n"
+                "   lgr   %2,%3\n"
+                "   slgr  %0,%0\n"
+                "   aghi  %2,63\n"
+                "   srlg  %2,%2,6\n"
+                "0: cg    %1,0(%0,%4)\n"
+                "   jne   1f\n"
+                "   aghi  %0,8\n"
+                "   brct  %2,0b\n"
+                "   lgr   %0,%3\n"
+                "   j     5f\n"
+                "1: lg    %2,0(%0,%4)\n"
+                "   sllg  %0,%0,3\n"
+                "   clr   %2,%1\n"
+                "   jne   2f\n"
+                "   aghi  %0,32\n"
+                "   srlg  %2,%2,32\n"
+                "2: lghi  %1,0xff\n"
+                "   tmll  %2,0xffff\n"
+                "   jno   3f\n"
+                "   aghi  %0,16\n"
+                "   srl   %2,16\n"
+                "3: tmll  %2,0x00ff\n"
+                "   jno   4f\n"
+                "   aghi  %0,8\n"
+                "   srl   %2,8\n"
+                "4: ngr   %2,%1\n"
+                "   ic    %2,0(%2,%5)\n"
+                "   algr  %0,%2\n"
+                "5:"
+                : "=&a" (res), "=&d" (cmp), "=&a" (count)
+                : "a" (size), "a" (addr), "a" (&_zb_findmap),
+                  "m" (*(addrtype *) addr) : "cc" );
+        return (res < size) ? res : size;
+}
+
+static inline unsigned long
+find_first_bit(const unsigned long * addr, unsigned long size)
+{
+        typedef struct { long _[__BITOPS_WORDS(size)]; } addrtype;
+        unsigned long res, cmp, count;
+
+        if (!size)
+                return 0;
+        __asm__("   slgr  %1,%1\n"
+                "   lgr   %2,%3\n"
+                "   slgr  %0,%0\n"
+                "   aghi  %2,63\n"
+                "   srlg  %2,%2,6\n"
+                "0: cg    %1,0(%0,%4)\n"
+                "   jne   1f\n"
+                "   aghi  %0,8\n"
+                "   brct  %2,0b\n"
+                "   lgr   %0,%3\n"
+                "   j     5f\n"
+                "1: lg    %2,0(%0,%4)\n"
+                "   sllg  %0,%0,3\n"
+                "   clr   %2,%1\n"
+                "   jne   2f\n"
+                "   aghi  %0,32\n"
+                "   srlg  %2,%2,32\n"
+                "2: lghi  %1,0xff\n"
+                "   tmll  %2,0xffff\n"
+                "   jnz   3f\n"
+                "   aghi  %0,16\n"
+                "   srl   %2,16\n"
+                "3: tmll  %2,0x00ff\n"
+                "   jnz   4f\n"
+                "   aghi  %0,8\n"
+                "   srl   %2,8\n"
+                "4: ngr   %2,%1\n"
+                "   ic    %2,0(%2,%5)\n"
+                "   algr  %0,%2\n"
+                "5:"
+                : "=&a" (res), "=&d" (cmp), "=&a" (count)
+                : "a" (size), "a" (addr), "a" (&_sb_findmap),
+                  "m" (*(addrtype *) addr) : "cc" );
+        return (res < size) ? res : size;
+}
+
+static inline unsigned long
+find_next_zero_bit (const unsigned long * addr, unsigned long size, unsigned long offset)
+{
+        unsigned long * p = ((unsigned long *) addr) + (offset >> 6);
+        unsigned long bitvec, reg;
+        unsigned long set, bit = offset & 63, res;
+
+        if (bit) {
+                /*
+                 * Look for zero in first word
+                 */
+                bitvec = (*p) >> bit;
+                __asm__("   lhi  %2,-1\n"
+                        "   slgr %0,%0\n"
+                        "   clr  %1,%2\n"
+                        "   jne  0f\n"
+                        "   aghi %0,32\n"
+                        "   srlg %1,%1,32\n"
+                        "0: lghi %2,0xff\n"
+                        "   tmll %1,0xffff\n"
+                        "   jno  1f\n"
+                        "   aghi %0,16\n"
+                        "   srlg %1,%1,16\n"
+                        "1: tmll %1,0x00ff\n"
+                        "   jno  2f\n"
+                        "   aghi %0,8\n"
+                        "   srlg %1,%1,8\n"
+                        "2: ngr  %1,%2\n"
+                        "   ic   %1,0(%1,%3)\n"
+                        "   algr %0,%1"
+                        : "=&d" (set), "+a" (bitvec), "=&d" (reg)
+                        : "a" (&_zb_findmap) : "cc" );
+                if (set < (64 - bit))
+                        return set + offset;
+                offset += 64 - bit;
+                p++;
+        }
+        /*
+         * No zero yet, search remaining full words for a zero
+         */
+        res = find_first_zero_bit (p, size - 64 * (p - (unsigned long *) addr));
+        return (offset + res);
+}
+
+static inline unsigned long
+find_next_bit (const unsigned long * addr, unsigned long size, unsigned long offset)
+{
+        unsigned long * p = ((unsigned long *) addr) + (offset >> 6);
+        unsigned long bitvec, reg;
+        unsigned long set, bit = offset & 63, res;
+
+        if (bit) {
+                /*
+                 * Look for zero in first word
+                 */
+                bitvec = (*p) >> bit;
+                __asm__("   slgr %0,%0\n"
+                        "   ltr  %1,%1\n"
+                        "   jnz  0f\n"
+                        "   aghi %0,32\n"
+                        "   srlg %1,%1,32\n"
+                        "0: lghi %2,0xff\n"
+                        "   tmll %1,0xffff\n"
+                        "   jnz  1f\n"
+                        "   aghi %0,16\n"
+                        "   srlg %1,%1,16\n"
+                        "1: tmll %1,0x00ff\n"
+                        "   jnz  2f\n"
+                        "   aghi %0,8\n"
+                        "   srlg %1,%1,8\n"
+                        "2: ngr  %1,%2\n"
+                        "   ic   %1,0(%1,%3)\n"
+                        "   algr %0,%1"
+                        : "=&d" (set), "+a" (bitvec), "=&d" (reg)
+                        : "a" (&_sb_findmap) : "cc" );
+                if (set < (64 - bit))
+                        return set + offset;
+                offset += 64 - bit;
+                p++;
+        }
+        /*
+         * No set bit yet, search remaining full words for a bit
+         */
+        res = find_first_bit (p, size - 64 * (p - (unsigned long *) addr));
+        return (offset + res);
+}
+
+#endif /* __s390x__ */
+
+/*
+ * ffz = Find First Zero in word. Undefined if no zero exists,
+ * so code should check against ~0UL first..
+ */
+static inline unsigned long ffz(unsigned long word)
+{
+        unsigned long bit = 0;
+
+#ifdef __s390x__
+        if (likely((word & 0xffffffff) == 0xffffffff)) {
+                word >>= 32;
+                bit += 32;
+        }
+#endif
+        if (likely((word & 0xffff) == 0xffff)) {
+                word >>= 16;
+                bit += 16;
+        }
+        if (likely((word & 0xff) == 0xff)) {
+                word >>= 8;
+                bit += 8;
+        }
+        return bit + _zb_findmap[word & 0xff];
+}
+
+/*
+ * __ffs = find first bit in word. Undefined if no bit exists,
+ * so code should check against 0UL first..
+ */
+static inline unsigned long __ffs (unsigned long word)
+{
+        unsigned long bit = 0;
+
+#ifdef __s390x__
+        if (likely((word & 0xffffffff) == 0)) {
+                word >>= 32;
+                bit += 32;
+        }
+#endif
+        if (likely((word & 0xffff) == 0)) {
+                word >>= 16;
+                bit += 16;
+        }
+        if (likely((word & 0xff) == 0)) {
+                word >>= 8;
+                bit += 8;
+        }
+        return bit + _sb_findmap[word & 0xff];
+}
+
+/*
+ * Every architecture must define this function. It's the fastest
+ * way of searching a 140-bit bitmap where the first 100 bits are
+ * unlikely to be set. It's guaranteed that at least one of the 140
+ * bits is cleared.
+ */
+static inline int sched_find_first_bit(unsigned long *b)
+{
+        return find_first_bit(b, 140);
+}
+
+/*
+ * ffs: find first bit set. This is defined the same way as
+ * the libc and compiler builtin ffs routines, therefore
+ * differs in spirit from the above ffz (man ffs).
+ */
+#define ffs(x) generic_ffs(x)
+
+/*
+ * fls: find last bit set.
+ */
+#define fls(x) generic_fls(x)
+
+/*
+ * hweightN: returns the hamming weight (i.e. the number
+ * of bits set) of a N-bit word
+ */
+#define hweight64(x)                                            \
+({                                                              \
+        unsigned long __x = (x);                                \
+        unsigned int __w;                                       \
+        __w = generic_hweight32((unsigned int) __x);            \
+        __w += generic_hweight32((unsigned int) (__x>>32));     \
+        __w;                                                    \
+})
+#define hweight32(x) generic_hweight32(x)
+#define hweight16(x) generic_hweight16(x)
+#define hweight8(x) generic_hweight8(x)
+
+
+#ifdef __KERNEL__
+
+/*
+ * ATTENTION: intel byte ordering convention for ext2 and minix !!
+ * bit 0 is the LSB of addr; bit 31 is the MSB of addr;
+ * bit 32 is the LSB of (addr+4).
+ * That combined with the little endian byte order of Intel gives the
+ * following bit order in memory:
+ *    07 06 05 04 03 02 01 00 15 14 13 12 11 10 09 08 \
+ *    23 22 21 20 19 18 17 16 31 30 29 28 27 26 25 24
+ */
+
+#define ext2_set_bit(nr, addr)       \
+        test_and_set_bit((nr)^(__BITOPS_WORDSIZE - 8), (unsigned long *)addr)
+#define ext2_set_bit_atomic(lock, nr, addr)       \
+        test_and_set_bit((nr)^(__BITOPS_WORDSIZE - 8), (unsigned long *)addr)
+#define ext2_clear_bit(nr, addr)     \
+        test_and_clear_bit((nr)^(__BITOPS_WORDSIZE - 8), (unsigned long *)addr)
+#define ext2_clear_bit_atomic(lock, nr, addr)     \
+        test_and_clear_bit((nr)^(__BITOPS_WORDSIZE - 8), (unsigned long *)addr)
+#define ext2_test_bit(nr, addr)      \
+        test_bit((nr)^(__BITOPS_WORDSIZE - 8), (unsigned long *)addr)
+
+#ifndef __s390x__
+
+static inline int 
+ext2_find_first_zero_bit(void *vaddr, unsigned int size)
+{
+        typedef struct { long _[__BITOPS_WORDS(size)]; } addrtype;
+        unsigned long cmp, count;
+        unsigned int res;
+
+        if (!size)
+                return 0;
+        __asm__("   lhi  %1,-1\n"
+                "   lr   %2,%3\n"
+                "   ahi  %2,31\n"
+                "   srl  %2,5\n"
+                "   slr  %0,%0\n"
+                "0: cl   %1,0(%0,%4)\n"
+                "   jne  1f\n"
+                "   ahi  %0,4\n"
+                "   brct %2,0b\n"
+                "   lr   %0,%3\n"
+                "   j    4f\n"
+                "1: l    %2,0(%0,%4)\n"
+                "   sll  %0,3\n"
+                "   ahi  %0,24\n"
+                "   lhi  %1,0xff\n"
+                "   tmh  %2,0xffff\n"
+                "   jo   2f\n"
+                "   ahi  %0,-16\n"
+                "   srl  %2,16\n"
+                "2: tml  %2,0xff00\n"
+                "   jo   3f\n"
+                "   ahi  %0,-8\n"
+                "   srl  %2,8\n"
+                "3: nr   %2,%1\n"
+                "   ic   %2,0(%2,%5)\n"
+                "   alr  %0,%2\n"
+                "4:"
+                : "=&a" (res), "=&d" (cmp), "=&a" (count)
+                : "a" (size), "a" (vaddr), "a" (&_zb_findmap),
+                  "m" (*(addrtype *) vaddr) : "cc" );
+        return (res < size) ? res : size;
+}
+
+static inline int 
+ext2_find_next_zero_bit(void *vaddr, unsigned int size, unsigned offset)
+{
+        unsigned long *addr = vaddr;
+        unsigned long *p = addr + (offset >> 5);
+        unsigned long word, reg;
+        unsigned int bit = offset & 31UL, res;
+
+        if (offset >= size)
+                return size;
+
+        if (bit) {
+                __asm__("   ic   %0,0(%1)\n"
+                        "   icm  %0,2,1(%1)\n"
+                        "   icm  %0,4,2(%1)\n"
+                        "   icm  %0,8,3(%1)"
+                        : "=&a" (word) : "a" (p) : "cc" );
+                word >>= bit;
+                res = bit;
+                /* Look for zero in first longword */
+                __asm__("   lhi  %2,0xff\n"
+                        "   tml  %1,0xffff\n"
+                        "   jno  0f\n"
+                        "   ahi  %0,16\n"
+                        "   srl  %1,16\n"
+                        "0: tml  %1,0x00ff\n"
+                        "   jno  1f\n"
+                        "   ahi  %0,8\n"
+                        "   srl  %1,8\n"
+                        "1: nr   %1,%2\n"
+                        "   ic   %1,0(%1,%3)\n"
+                        "   alr  %0,%1"
+                        : "+&d" (res), "+&a" (word), "=&d" (reg)
+                        : "a" (&_zb_findmap) : "cc" );
+                if (res < 32)
+                        return (p - addr)*32 + res;
+                p++;
+        }
+        /* No zero yet, search remaining full bytes for a zero */
+        res = ext2_find_first_zero_bit (p, size - 32 * (p - addr));
+        return (p - addr) * 32 + res;
+}
+
+#else /* __s390x__ */
+
+static inline unsigned long
+ext2_find_first_zero_bit(void *vaddr, unsigned long size)
+{
+        typedef struct { long _[__BITOPS_WORDS(size)]; } addrtype;
+        unsigned long res, cmp, count;
+
+        if (!size)
+                return 0;
+        __asm__("   lghi  %1,-1\n"
+                "   lgr   %2,%3\n"
+                "   aghi  %2,63\n"
+                "   srlg  %2,%2,6\n"
+                "   slgr  %0,%0\n"
+                "0: clg   %1,0(%0,%4)\n"
+                "   jne   1f\n"
+                "   aghi  %0,8\n"
+                "   brct  %2,0b\n"
+                "   lgr   %0,%3\n"
+                "   j     5f\n"
+                "1: cl    %1,0(%0,%4)\n"
+                "   jne   2f\n"
+                "   aghi  %0,4\n"
+                "2: l     %2,0(%0,%4)\n"
+                "   sllg  %0,%0,3\n"
+                "   aghi  %0,24\n"
+                "   lghi  %1,0xff\n"
+                "   tmlh  %2,0xffff\n"
+                "   jo    3f\n"
+                "   aghi  %0,-16\n"
+                "   srl   %2,16\n"
+                "3: tmll  %2,0xff00\n"
+                "   jo    4f\n"
+                "   aghi  %0,-8\n"
+                "   srl   %2,8\n"
+                "4: ngr   %2,%1\n"
+                "   ic    %2,0(%2,%5)\n"
+                "   algr  %0,%2\n"
+                "5:"
+                : "=&a" (res), "=&d" (cmp), "=&a" (count)
+                : "a" (size), "a" (vaddr), "a" (&_zb_findmap),
+                  "m" (*(addrtype *) vaddr) : "cc" );
+        return (res < size) ? res : size;
+}
+
+static inline unsigned long
+ext2_find_next_zero_bit(void *vaddr, unsigned long size, unsigned long offset)
+{
+        unsigned long *addr = vaddr;
+        unsigned long *p = addr + (offset >> 6);
+        unsigned long word, reg;
+        unsigned long bit = offset & 63UL, res;
+
+        if (offset >= size)
+                return size;
+
+        if (bit) {
+                __asm__("   lrvg %0,%1" /* load reversed, neat instruction */
+                        : "=a" (word) : "m" (*p) );
+                word >>= bit;
+                res = bit;
+                /* Look for zero in first 8 byte word */
+                __asm__("   lghi %2,0xff\n"
+                        "   tmll %1,0xffff\n"
+                        "   jno  2f\n"
+                        "   ahi  %0,16\n"
+                        "   srlg %1,%1,16\n"
+                        "0: tmll %1,0xffff\n"
+                        "   jno  2f\n"
+                        "   ahi  %0,16\n"
+                        "   srlg %1,%1,16\n"
+                        "1: tmll %1,0xffff\n"
+                        "   jno  2f\n"
+                        "   ahi  %0,16\n"
+                        "   srl  %1,16\n"
+                        "2: tmll %1,0x00ff\n"
+                        "   jno  3f\n"
+                        "   ahi  %0,8\n"
+                        "   srl  %1,8\n"
+                        "3: ngr  %1,%2\n"
+                        "   ic   %1,0(%1,%3)\n"
+                        "   alr  %0,%1"
+                        : "+&d" (res), "+a" (word), "=&d" (reg)
+                        : "a" (&_zb_findmap) : "cc" );
+                if (res < 64)
+                        return (p - addr)*64 + res;
+                p++;
+        }
+        /* No zero yet, search remaining full bytes for a zero */
+        res = ext2_find_first_zero_bit (p, size - 64 * (p - addr));
+        return (p - addr) * 64 + res;
+}
+
+#endif /* __s390x__ */
+
+/* Bitmap functions for the minix filesystem.  */
+/* FIXME !!! */
+#define minix_test_and_set_bit(nr,addr) \
+        test_and_set_bit(nr,(unsigned long *)addr)
+#define minix_set_bit(nr,addr) \
+        set_bit(nr,(unsigned long *)addr)
+#define minix_test_and_clear_bit(nr,addr) \
+        test_and_clear_bit(nr,(unsigned long *)addr)
+#define minix_test_bit(nr,addr) \
+        test_bit(nr,(unsigned long *)addr)
+#define minix_find_first_zero_bit(addr,size) \
+        find_first_zero_bit(addr,size)
+
+#endif /* __KERNEL__ */
+
+#endif /* _S390_BITOPS_H */
diff --git a/include/asm-s390/bug.h b/include/asm-s390/bug.h
new file mode 100644
index 000000000000..2b8d6d4dffcf
--- /dev/null
+++ b/include/asm-s390/bug.h
@@ -0,0 +1,14 @@
+#ifndef _S390_BUG_H
+#define _S390_BUG_H
+
+#include <linux/kernel.h>
+
+#define BUG() do { \
+        printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); \
+        __asm__ __volatile__(".long 0"); \
+} while (0)
+
+#define HAVE_ARCH_BUG
+#include <asm-generic/bug.h>
+
+#endif
diff --git a/include/asm-s390/bugs.h b/include/asm-s390/bugs.h
new file mode 100644
index 000000000000..2c3659621314
--- /dev/null
+++ b/include/asm-s390/bugs.h
@@ -0,0 +1,22 @@
+/*
+ *  include/asm-s390/bugs.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
+ *
+ *  Derived from "include/asm-i386/bugs.h"
+ *    Copyright (C) 1994  Linus Torvalds
+ */
+
+/*
+ * This is included by init/main.c to check for architecture-dependent bugs.
+ *
+ * Needs:
+ *      void check_bugs(void);
+ */
+
+static void __init check_bugs(void)
+{
+  /* s390 has no bugs ... */
+}
diff --git a/include/asm-s390/byteorder.h b/include/asm-s390/byteorder.h
new file mode 100644
index 000000000000..2cc35a0e188e
--- /dev/null
+++ b/include/asm-s390/byteorder.h
@@ -0,0 +1,131 @@
+#ifndef _S390_BYTEORDER_H
+#define _S390_BYTEORDER_H
+
+/*
+ *  include/asm-s390/byteorder.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
+ */
+
+#include <asm/types.h>
+
+#ifdef __GNUC__
+
+#ifdef __s390x__
+static __inline__ __u64 ___arch__swab64p(const __u64 *x)
+{
+        __u64 result;
+
+        __asm__ __volatile__ (
+                "   lrvg %0,%1"
+                : "=d" (result) : "m" (*x) );
+        return result;
+}
+
+static __inline__ __u64 ___arch__swab64(__u64 x)
+{
+        __u64 result;
+
+        __asm__ __volatile__ (
+                "   lrvgr %0,%1"
+                : "=d" (result) : "d" (x) );
+        return result;
+}
+
+static __inline__ void ___arch__swab64s(__u64 *x)
+{
+        *x = ___arch__swab64p(x);
+}
+#endif /* __s390x__ */
+
+static __inline__ __u32 ___arch__swab32p(const __u32 *x)
+{
+        __u32 result;
+        
+        __asm__ __volatile__ (
+#ifndef __s390x__
+                "        icm   %0,8,3(%1)\n"
+                "        icm   %0,4,2(%1)\n"
+                "        icm   %0,2,1(%1)\n"
+                "        ic    %0,0(%1)"
+                : "=&d" (result) : "a" (x), "m" (*x) : "cc" );
+#else /* __s390x__ */
+                "   lrv  %0,%1"
+                : "=d" (result) : "m" (*x) );
+#endif /* __s390x__ */
+        return result;
+}
+
+static __inline__ __u32 ___arch__swab32(__u32 x)
+{
+#ifndef __s390x__
+        return ___arch__swab32p(&x);
+#else /* __s390x__ */
+        __u32 result;
+        
+        __asm__ __volatile__ (
+                "   lrvr  %0,%1"
+                : "=d" (result) : "d" (x) );
+        return result;
+#endif /* __s390x__ */
+}
+
+static __inline__ void ___arch__swab32s(__u32 *x)
+{
+        *x = ___arch__swab32p(x);
+}
+
+static __inline__ __u16 ___arch__swab16p(const __u16 *x)
+{
+        __u16 result;
+        
+        __asm__ __volatile__ (
+#ifndef __s390x__
+                "        icm   %0,2,1(%1)\n"
+                "        ic    %0,0(%1)\n"
+                : "=&d" (result) : "a" (x), "m" (*x) : "cc" );
+#else /* __s390x__ */
+                "   lrvh %0,%1"
+                : "=d" (result) : "m" (*x) );
+#endif /* __s390x__ */
+        return result;
+}
+
+static __inline__ __u16 ___arch__swab16(__u16 x)
+{
+        return ___arch__swab16p(&x);
+}
+
+static __inline__ void ___arch__swab16s(__u16 *x)
+{
+        *x = ___arch__swab16p(x);
+}
+
+#ifdef __s390x__
+#define __arch__swab64(x) ___arch__swab64(x)
+#define __arch__swab64p(x) ___arch__swab64p(x)
+#define __arch__swab64s(x) ___arch__swab64s(x)
+#endif /* __s390x__ */
+#define __arch__swab32(x) ___arch__swab32(x)
+#define __arch__swab16(x) ___arch__swab16(x)
+#define __arch__swab32p(x) ___arch__swab32p(x)
+#define __arch__swab16p(x) ___arch__swab16p(x)
+#define __arch__swab32s(x) ___arch__swab32s(x)
+#define __arch__swab16s(x) ___arch__swab16s(x)
+
+#ifndef __s390x__
+#if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
+#  define __BYTEORDER_HAS_U64__
+#  define __SWAB_64_THRU_32__
+#endif
+#else /* __s390x__ */
+#define __BYTEORDER_HAS_U64__
+#endif /* __s390x__ */
+
+#endif /* __GNUC__ */
+
+#include <linux/byteorder/big_endian.h>
+
+#endif /* _S390_BYTEORDER_H */
diff --git a/include/asm-s390/cache.h b/include/asm-s390/cache.h
new file mode 100644
index 000000000000..29845378b206
--- /dev/null
+++ b/include/asm-s390/cache.h
@@ -0,0 +1,20 @@
+/*
+ *  include/asm-s390/cache.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *
+ *  Derived from "include/asm-i386/cache.h"
+ *    Copyright (C) 1992, Linus Torvalds
+ */
+
+#ifndef __ARCH_S390_CACHE_H
+#define __ARCH_S390_CACHE_H
+
+#define L1_CACHE_BYTES     256
+#define L1_CACHE_SHIFT     8
+#define L1_CACHE_SHIFT_MAX 8    /* largest L1 which this arch supports */
+
+#define ARCH_KMALLOC_MINALIGN   8
+
+#endif
diff --git a/include/asm-s390/cacheflush.h b/include/asm-s390/cacheflush.h
new file mode 100644
index 000000000000..e399a8ba2ed7
--- /dev/null
+++ b/include/asm-s390/cacheflush.h
@@ -0,0 +1,26 @@
+#ifndef _S390_CACHEFLUSH_H
+#define _S390_CACHEFLUSH_H
+
+/* Keep includes the same across arches.  */
+#include <linux/mm.h>
+
+/* Caches aren't brain-dead on the s390. */
+#define flush_cache_all()                       do { } while (0)
+#define flush_cache_mm(mm)                      do { } while (0)
+#define flush_cache_range(vma, start, end)      do { } while (0)
+#define flush_cache_page(vma, vmaddr, pfn)      do { } while (0)
+#define flush_dcache_page(page)                 do { } while (0)
+#define flush_dcache_mmap_lock(mapping)         do { } while (0)
+#define flush_dcache_mmap_unlock(mapping)       do { } while (0)
+#define flush_icache_range(start, end)          do { } while (0)
+#define flush_icache_page(vma,pg)               do { } while (0)
+#define flush_icache_user_range(vma,pg,adr,len) do { } while (0)
+#define flush_cache_vmap(start, end)            do { } while (0)
+#define flush_cache_vunmap(start, end)          do { } while (0)
+
+#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
+        memcpy(dst, src, len)
+#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
+        memcpy(dst, src, len)
+
+#endif /* _S390_CACHEFLUSH_H */
diff --git a/include/asm-s390/ccwdev.h b/include/asm-s390/ccwdev.h
new file mode 100644
index 000000000000..3eb231af5d51
--- /dev/null
+++ b/include/asm-s390/ccwdev.h
@@ -0,0 +1,192 @@
+/*
+ *  include/asm-s390/ccwdev.h
+ *  include/asm-s390x/ccwdev.h
+ *
+ *    Copyright (C) 2002 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Arnd Bergmann <arndb@de.ibm.com>
+ *
+ *  Interface for CCW device drivers
+ */
+#ifndef _S390_CCWDEV_H_
+#define _S390_CCWDEV_H_
+
+#include <linux/device.h>
+#include <linux/mod_devicetable.h>
+
+/* structs from asm/cio.h */
+struct irb;
+struct ccw1;
+
+/* simplified initializers for struct ccw_device:
+ * CCW_DEVICE and CCW_DEVICE_DEVTYPE initialize one
+ * entry in your MODULE_DEVICE_TABLE and set the match_flag correctly */
+#define CCW_DEVICE(cu, cum)                                             \
+        .cu_type=(cu), .cu_model=(cum),                                 \
+        .match_flags=(CCW_DEVICE_ID_MATCH_CU_TYPE                       \
+                   | (cum ? CCW_DEVICE_ID_MATCH_CU_MODEL : 0))
+
+#define CCW_DEVICE_DEVTYPE(cu, cum, dev, devm)                          \
+        .cu_type=(cu), .cu_model=(cum), .dev_type=(dev), .dev_model=(devm),\
+        .match_flags=CCW_DEVICE_ID_MATCH_CU_TYPE                        \
+                   | ((cum) ? CCW_DEVICE_ID_MATCH_CU_MODEL : 0)         \
+                   | CCW_DEVICE_ID_MATCH_DEVICE_TYPE                    \
+                   | ((devm) ? CCW_DEVICE_ID_MATCH_DEVICE_MODEL : 0)
+
+/* scan through an array of device ids and return the first
+ * entry that matches the device.
+ *
+ * the array must end with an entry containing zero match_flags
+ */
+static inline const struct ccw_device_id *
+ccw_device_id_match(const struct ccw_device_id *array,
+                        const struct ccw_device_id *match)
+{
+        const struct ccw_device_id *id = array;
+
+        for (id = array; id->match_flags; id++) {
+                if ((id->match_flags & CCW_DEVICE_ID_MATCH_CU_TYPE)
+                    && (id->cu_type != match->cu_type))
+                        continue;
+
+                if ((id->match_flags & CCW_DEVICE_ID_MATCH_CU_MODEL)
+                    && (id->cu_model != match->cu_model))
+                        continue;
+
+                if ((id->match_flags & CCW_DEVICE_ID_MATCH_DEVICE_TYPE)
+                    && (id->dev_type != match->dev_type))
+                        continue;
+
+                if ((id->match_flags & CCW_DEVICE_ID_MATCH_DEVICE_MODEL)
+                    && (id->dev_model != match->dev_model))
+                        continue;
+
+                return id;
+        }
+
+        return 0;
+}
+
+/* The struct ccw device is our replacement for the globally accessible
+ * ioinfo array. ioinfo will mutate into a subchannel device later.
+ *
+ * Reference: Documentation/s390/driver-model.txt */
+struct ccw_device {
+        spinlock_t *ccwlock;
+        struct ccw_device_private *private;     /* cio private information */
+        struct ccw_device_id id;        /* id of this device, driver_info is
+                                           set by ccw_find_driver */
+        struct ccw_driver *drv;         /* */
+        struct device dev;              /* */
+        int online;
+        /* This is sick, but a driver can have different interrupt handlers 
+           for different ccw_devices (multi-subchannel drivers)... */
+        void (*handler) (struct ccw_device *, unsigned long, struct irb *);
+};
+
+
+/* Each ccw driver registers with the ccw root bus */
+struct ccw_driver {
+        struct module *owner;           /* for automatic MOD_INC_USE_COUNT   */
+        struct ccw_device_id *ids;      /* probe driver with these devs      */
+        int (*probe) (struct ccw_device *); /* ask driver to probe dev       */
+        void (*remove) (struct ccw_device *);
+                                        /* device is no longer available     */
+        int (*set_online) (struct ccw_device *);
+        int (*set_offline) (struct ccw_device *);
+        int (*notify) (struct ccw_device *, int);
+        struct device_driver driver;    /* higher level structure, don't init
+                                           this from your driver             */
+        char *name;
+};
+
+extern struct ccw_device *get_ccwdev_by_busid(struct ccw_driver *cdrv,
+                                              const char *bus_id);
+
+/* devices drivers call these during module load and unload.
+ * When a driver is registered, its probe method is called
+ * when new devices for its type pop up */
+extern int  ccw_driver_register   (struct ccw_driver *driver);
+extern void ccw_driver_unregister (struct ccw_driver *driver);
+
+struct ccw1;
+
+extern int ccw_device_set_options(struct ccw_device *, unsigned long);
+
+/* Allow for i/o completion notification after primary interrupt status. */
+#define CCWDEV_EARLY_NOTIFICATION       0x0001
+/* Report all interrupt conditions. */
+#define CCWDEV_REPORT_ALL               0x0002
+/* Try to perform path grouping. */
+#define CCWDEV_DO_PATHGROUP             0x0004
+/* Allow forced onlining of boxed devices. */
+#define CCWDEV_ALLOW_FORCE              0x0008
+
+/*
+ * ccw_device_start()
+ *
+ *  Start a S/390 channel program. When the interrupt arrives, the
+ *  IRQ handler is called, either immediately, delayed (dev-end missing,
+ *  or sense required) or never (no IRQ handler registered).
+ *  Depending on the action taken, ccw_device_start() returns:  
+ *                           0       - Success
+ *                           -EBUSY  - Device busy, or status pending
+ *                           -ENODEV - Device not operational
+ *                           -EINVAL - Device invalid for operation
+ */
+extern int ccw_device_start(struct ccw_device *, struct ccw1 *,
+                            unsigned long, __u8, unsigned long);
+/*
+ * ccw_device_start_timeout()
+ *
+ * This function notifies the device driver if the channel program has not
+ * completed during the specified time. If a timeout occurs, the channel
+ * program is terminated via xsch(), hsch() or csch().
+ */
+extern int ccw_device_start_timeout(struct ccw_device *, struct ccw1 *,
+                                    unsigned long, __u8, unsigned long, int);
+/*
+ * ccw_device_start_key()
+ * ccw_device_start_key_timeout()
+ *
+ * Same as ccw_device_start() and ccw_device_start_timeout(), except a
+ * storage key != default key can be provided for the I/O.
+ */
+extern int ccw_device_start_key(struct ccw_device *, struct ccw1 *,
+                                unsigned long, __u8, __u8, unsigned long);
+extern int ccw_device_start_timeout_key(struct ccw_device *, struct ccw1 *,
+                                        unsigned long, __u8, __u8,
+                                        unsigned long, int);
+
+
+extern int ccw_device_resume(struct ccw_device *);
+extern int ccw_device_halt(struct ccw_device *, unsigned long);
+extern int ccw_device_clear(struct ccw_device *, unsigned long);
+
+extern int read_dev_chars(struct ccw_device *cdev, void **buffer, int length);
+extern int read_conf_data(struct ccw_device *cdev, void **buffer, int *length);
+extern int read_conf_data_lpm(struct ccw_device *cdev, void **buffer,
+                              int *length, __u8 lpm);
+
+extern int ccw_device_set_online(struct ccw_device *cdev);
+extern int ccw_device_set_offline(struct ccw_device *cdev);
+
+
+extern struct ciw *ccw_device_get_ciw(struct ccw_device *, __u32 cmd);
+extern __u8 ccw_device_get_path_mask(struct ccw_device *);
+
+#define get_ccwdev_lock(x) (x)->ccwlock
+
+#define to_ccwdev(n) container_of(n, struct ccw_device, dev)
+#define to_ccwdrv(n) container_of(n, struct ccw_driver, driver)
+
+extern struct ccw_device *ccw_device_probe_console(void);
+
+// FIXME: these have to go
+extern int _ccw_device_get_device_number(struct ccw_device *);
+extern int _ccw_device_get_subchannel_number(struct ccw_device *);
+
+extern struct device *s390_root_dev_register(const char *);
+extern void s390_root_dev_unregister(struct device *);
+
+extern void *ccw_device_get_chp_desc(struct ccw_device *, int);
+#endif /* _S390_CCWDEV_H_ */
diff --git a/include/asm-s390/ccwgroup.h b/include/asm-s390/ccwgroup.h
new file mode 100644
index 000000000000..d2f9c0d53a97
--- /dev/null
+++ b/include/asm-s390/ccwgroup.h
@@ -0,0 +1,45 @@
+#ifndef S390_CCWGROUP_H
+#define S390_CCWGROUP_H
+
+struct ccw_device;
+struct ccw_driver;
+
+struct ccwgroup_device {
+        unsigned long creator_id;       /* unique number of the driver */
+        enum {
+                CCWGROUP_OFFLINE,
+                CCWGROUP_ONLINE,
+        } state;
+        atomic_t onoff;
+        unsigned int count;             /* number of attached slave devices */
+        struct device   dev;            /* master device                    */
+        struct ccw_device *cdev[0];     /* variable number, allocate as needed */
+};
+
+struct ccwgroup_driver {
+        struct module *owner;
+        char *name;
+        int max_slaves;
+        unsigned long driver_id;
+
+        int (*probe) (struct ccwgroup_device *);
+        void (*remove) (struct ccwgroup_device *);
+        int (*set_online) (struct ccwgroup_device *);
+        int (*set_offline) (struct ccwgroup_device *);
+
+        struct device_driver driver;            /* this driver */
+};
+
+extern int  ccwgroup_driver_register   (struct ccwgroup_driver *cdriver);
+extern void ccwgroup_driver_unregister (struct ccwgroup_driver *cdriver);
+extern int ccwgroup_create (struct device *root,
+                            unsigned int creator_id,
+                            struct ccw_driver *gdrv,
+                            int argc, char *argv[]);
+
+extern int ccwgroup_probe_ccwdev(struct ccw_device *cdev);
+extern void ccwgroup_remove_ccwdev(struct ccw_device *cdev);
+
+#define to_ccwgroupdev(x) container_of((x), struct ccwgroup_device, dev)
+#define to_ccwgroupdrv(x) container_of((x), struct ccwgroup_driver, driver)
+#endif
diff --git a/include/asm-s390/checksum.h b/include/asm-s390/checksum.h
new file mode 100644
index 000000000000..471f2af2b16a
--- /dev/null
+++ b/include/asm-s390/checksum.h
@@ -0,0 +1,264 @@
+#ifndef _S390_CHECKSUM_H
+#define _S390_CHECKSUM_H
+
+/*
+ *  include/asm-s390/checksum.h
+ *    S390 fast network checksum routines
+ *    see also arch/S390/lib/checksum.c
+ *
+ *  S390 version
+ *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Ulrich Hild        (first version)
+ *               Martin Schwidefsky (heavily optimized CKSM version)
+ *               D.J. Barrow        (third attempt) 
+ */
+
+#include <asm/uaccess.h>
+
+/*
+ * computes the checksum of a memory block at buff, length len,
+ * and adds in "sum" (32-bit)
+ *
+ * returns a 32-bit number suitable for feeding into itself
+ * or csum_tcpudp_magic
+ *
+ * this function must be called with even lengths, except
+ * for the last fragment, which may be odd
+ *
+ * it's best to have buff aligned on a 32-bit boundary
+ */
+static inline unsigned int
+csum_partial(const unsigned char * buff, int len, unsigned int sum)
+{
+        /*
+         * Experiments with ethernet and slip connections show that buf
+         * is aligned on either a 2-byte or 4-byte boundary.
+         */
+#ifndef __s390x__
+        register_pair rp;
+
+        rp.subreg.even = (unsigned long) buff;
+        rp.subreg.odd = (unsigned long) len;
+        __asm__ __volatile__ (
+                "0:  cksm %0,%1\n"      /* do checksum on longs */
+                "    jo   0b\n"
+                : "+&d" (sum), "+&a" (rp) : : "cc", "memory" );
+#else /* __s390x__ */
+        __asm__ __volatile__ (
+                "    lgr  2,%1\n"    /* address in gpr 2 */
+                "    lgfr 3,%2\n"    /* length in gpr 3 */
+                "0:  cksm %0,2\n"    /* do checksum on longs */
+                "    jo   0b\n"
+                : "+&d" (sum)
+                : "d" (buff), "d" (len)
+                : "cc", "memory", "2", "3" );
+#endif /* __s390x__ */
+        return sum;
+}
+
+/*
+ * csum_partial as an inline function
+ */
+static inline unsigned int 
+csum_partial_inline(const unsigned char * buff, int len, unsigned int sum)
+{
+#ifndef __s390x__
+        register_pair rp;
+
+        rp.subreg.even = (unsigned long) buff;
+        rp.subreg.odd = (unsigned long) len;
+        __asm__ __volatile__ (
+                "0:  cksm %0,%1\n"    /* do checksum on longs */
+                "    jo   0b\n"
+                : "+&d" (sum), "+&a" (rp) : : "cc", "memory" );
+#else /* __s390x__ */
+        __asm__ __volatile__ (
+                "    lgr  2,%1\n"    /* address in gpr 2 */
+                "    lgfr 3,%2\n"    /* length in gpr 3 */
+                "0:  cksm %0,2\n"    /* do checksum on longs */
+                "    jo   0b\n"
+                : "+&d" (sum)
+                : "d" (buff), "d" (len)
+                : "cc", "memory", "2", "3" );
+#endif /* __s390x__ */
+        return sum;
+}
+
+/*
+ * the same as csum_partial_copy, but copies from user space.
+ *
+ * here even more important to align src and dst on a 32-bit (or even
+ * better 64-bit) boundary
+ *
+ * Copy from userspace and compute checksum.  If we catch an exception
+ * then zero the rest of the buffer.
+ */
+static inline unsigned int
+csum_partial_copy_from_user(const char __user *src, char *dst,
+                                          int len, unsigned int sum,
+                                          int *err_ptr)
+{
+        int missing;
+
+        missing = copy_from_user(dst, src, len);
+        if (missing) {
+                memset(dst + len - missing, 0, missing);
+                *err_ptr = -EFAULT;
+        }
+                
+        return csum_partial(dst, len, sum);
+}
+
+
+static inline unsigned int
+csum_partial_copy_nocheck (const char *src, char *dst, int len, unsigned int sum)
+{
+        memcpy(dst,src,len);
+        return csum_partial_inline(dst, len, sum);
+}
+
+/*
+ *      Fold a partial checksum without adding pseudo headers
+ */
+static inline unsigned short
+csum_fold(unsigned int sum)
+{
+#ifndef __s390x__
+        register_pair rp;
+
+        __asm__ __volatile__ (
+                "    slr  %N1,%N1\n" /* %0 = H L */
+                "    lr   %1,%0\n"   /* %0 = H L, %1 = H L 0 0 */
+                "    srdl %1,16\n"   /* %0 = H L, %1 = 0 H L 0 */
+                "    alr  %1,%N1\n"  /* %0 = H L, %1 = L H L 0 */
+                "    alr  %0,%1\n"   /* %0 = H+L+C L+H */
+                "    srl  %0,16\n"   /* %0 = H+L+C */
+                : "+&d" (sum), "=d" (rp) : : "cc" );
+#else /* __s390x__ */
+        __asm__ __volatile__ (
+                "    sr   3,3\n"   /* %0 = H*65536 + L */
+                "    lr   2,%0\n"  /* %0 = H L, R2/R3 = H L / 0 0 */
+                "    srdl 2,16\n"  /* %0 = H L, R2/R3 = 0 H / L 0 */
+                "    alr  2,3\n"   /* %0 = H L, R2/R3 = L H / L 0 */
+                "    alr  %0,2\n"  /* %0 = H+L+C L+H */
+                "    srl  %0,16\n" /* %0 = H+L+C */
+                : "+&d" (sum) : : "cc", "2", "3");
+#endif /* __s390x__ */
+        return ((unsigned short) ~sum);
+}
+
+/*
+ *      This is a version of ip_compute_csum() optimized for IP headers,
+ *      which always checksum on 4 octet boundaries.
+ *
+ */
+static inline unsigned short
+ip_fast_csum(unsigned char *iph, unsigned int ihl)
+{
+        unsigned long sum;
+#ifndef __s390x__
+        register_pair rp;
+
+        rp.subreg.even = (unsigned long) iph;
+        rp.subreg.odd = (unsigned long) ihl*4;
+        __asm__ __volatile__ (
+                "    sr   %0,%0\n"   /* set sum to zero */
+                "0:  cksm %0,%1\n"   /* do checksum on longs */
+                "    jo   0b\n"
+                : "=&d" (sum), "+&a" (rp) : : "cc", "memory" );
+#else /* __s390x__ */
+        __asm__ __volatile__ (
+                "    slgr %0,%0\n"   /* set sum to zero */
+                "    lgr  2,%1\n"    /* address in gpr 2 */
+                "    lgfr 3,%2\n"    /* length in gpr 3 */
+                "0:  cksm %0,2\n"    /* do checksum on ints */
+                "    jo   0b\n"
+                : "=&d" (sum)
+                : "d" (iph), "d" (ihl*4)
+                : "cc", "memory", "2", "3" );
+#endif /* __s390x__ */
+        return csum_fold(sum);
+}
+
+/*
+ * computes the checksum of the TCP/UDP pseudo-header
+ * returns a 32-bit checksum
+ */
+static inline unsigned int 
+csum_tcpudp_nofold(unsigned long saddr, unsigned long daddr,
+                   unsigned short len, unsigned short proto,
+                   unsigned int sum)
+{
+#ifndef __s390x__
+        __asm__ __volatile__ (
+                "    alr   %0,%1\n"  /* sum += saddr */
+                "    brc   12,0f\n"
+                "    ahi   %0,1\n"   /* add carry */
+                "0:"
+                : "+&d" (sum) : "d" (saddr) : "cc" );
+        __asm__ __volatile__ (
+                "    alr   %0,%1\n"  /* sum += daddr */
+                "    brc   12,1f\n"
+                "    ahi   %0,1\n"   /* add carry */
+                "1:"
+                : "+&d" (sum) : "d" (daddr) : "cc" );
+        __asm__ __volatile__ (
+                "    alr   %0,%1\n"  /* sum += (len<<16) + (proto<<8) */
+                "    brc   12,2f\n"
+                "    ahi   %0,1\n"   /* add carry */
+                "2:"
+                : "+&d" (sum)
+                : "d" (((unsigned int) len<<16) + (unsigned int) proto)
+                : "cc" );
+#else /* __s390x__ */
+        __asm__ __volatile__ (
+                "    lgfr  %0,%0\n"
+                "    algr  %0,%1\n"  /* sum += saddr */
+                "    brc   12,0f\n"
+                "    aghi  %0,1\n"   /* add carry */
+                "0:  algr  %0,%2\n"  /* sum += daddr */
+                "    brc   12,1f\n"
+                "    aghi  %0,1\n"   /* add carry */
+                "1:  algfr %0,%3\n"  /* sum += (len<<16) + proto */
+                "    brc   12,2f\n"
+                "    aghi  %0,1\n"   /* add carry */
+                "2:  srlg  0,%0,32\n"
+                "    alr   %0,0\n"   /* fold to 32 bits */
+                "    brc   12,3f\n"
+                "    ahi   %0,1\n"   /* add carry */
+                "3:  llgfr %0,%0"
+                : "+&d" (sum)
+                : "d" (saddr), "d" (daddr),
+                  "d" (((unsigned int) len<<16) + (unsigned int) proto)
+                : "cc", "0" );
+#endif /* __s390x__ */
+        return sum;
+}
+
+/*
+ * computes the checksum of the TCP/UDP pseudo-header
+ * returns a 16-bit checksum, already complemented
+ */
+
+static inline unsigned short int
+csum_tcpudp_magic(unsigned long saddr, unsigned long daddr,
+                  unsigned short len, unsigned short proto,
+                  unsigned int sum)
+{
+        return csum_fold(csum_tcpudp_nofold(saddr,daddr,len,proto,sum));
+}
+
+/*
+ * this routine is used for miscellaneous IP-like checksums, mainly
+ * in icmp.c
+ */
+
+static inline unsigned short
+ip_compute_csum(unsigned char * buff, int len)
+{
+        return csum_fold(csum_partial(buff, len, 0));
+}
+
+#endif /* _S390_CHECKSUM_H */
+
+
diff --git a/include/asm-s390/cio.h b/include/asm-s390/cio.h
new file mode 100644
index 000000000000..089cf567c317
--- /dev/null
+++ b/include/asm-s390/cio.h
@@ -0,0 +1,281 @@
+/*
+ *  include/asm-s390/cio.h
+ *  include/asm-s390x/cio.h
+ *
+ * Common interface for I/O on S/390
+ */
+#ifndef _ASM_S390_CIO_H_
+#define _ASM_S390_CIO_H_
+
+#include <linux/spinlock.h>
+#include <asm/types.h>
+
+#ifdef __KERNEL__
+
+#define LPM_ANYPATH 0xff
+
+/*
+ * subchannel status word
+ */
+struct scsw {
+        __u32 key  : 4;         /* subchannel key */
+        __u32 sctl : 1;         /* suspend control */
+        __u32 eswf : 1;         /* ESW format */
+        __u32 cc   : 2;         /* deferred condition code */
+        __u32 fmt  : 1;         /* format */
+        __u32 pfch : 1;         /* prefetch */
+        __u32 isic : 1;         /* initial-status interruption control */
+        __u32 alcc : 1;         /* address-limit checking control */
+        __u32 ssi  : 1;         /* supress-suspended interruption */
+        __u32 zcc  : 1;         /* zero condition code */
+        __u32 ectl : 1;         /* extended control */
+        __u32 pno  : 1;         /* path not operational */
+        __u32 res  : 1;         /* reserved */
+        __u32 fctl : 3;         /* function control */
+        __u32 actl : 7;         /* activity control */
+        __u32 stctl : 5;        /* status control */
+        __u32 cpa;              /* channel program address */
+        __u32 dstat : 8;        /* device status */
+        __u32 cstat : 8;        /* subchannel status */
+        __u32 count : 16;       /* residual count */
+} __attribute__ ((packed));
+
+#define SCSW_FCTL_CLEAR_FUNC     0x1
+#define SCSW_FCTL_HALT_FUNC      0x2
+#define SCSW_FCTL_START_FUNC     0x4
+
+#define SCSW_ACTL_SUSPENDED      0x1
+#define SCSW_ACTL_DEVACT         0x2
+#define SCSW_ACTL_SCHACT         0x4
+#define SCSW_ACTL_CLEAR_PEND     0x8
+#define SCSW_ACTL_HALT_PEND      0x10
+#define SCSW_ACTL_START_PEND     0x20
+#define SCSW_ACTL_RESUME_PEND    0x40
+
+#define SCSW_STCTL_STATUS_PEND   0x1
+#define SCSW_STCTL_SEC_STATUS    0x2
+#define SCSW_STCTL_PRIM_STATUS   0x4
+#define SCSW_STCTL_INTER_STATUS  0x8
+#define SCSW_STCTL_ALERT_STATUS  0x10
+
+#define DEV_STAT_ATTENTION       0x80
+#define DEV_STAT_STAT_MOD        0x40
+#define DEV_STAT_CU_END          0x20
+#define DEV_STAT_BUSY            0x10
+#define DEV_STAT_CHN_END         0x08
+#define DEV_STAT_DEV_END         0x04
+#define DEV_STAT_UNIT_CHECK      0x02
+#define DEV_STAT_UNIT_EXCEP      0x01
+
+#define SCHN_STAT_PCI            0x80
+#define SCHN_STAT_INCORR_LEN     0x40
+#define SCHN_STAT_PROG_CHECK     0x20
+#define SCHN_STAT_PROT_CHECK     0x10
+#define SCHN_STAT_CHN_DATA_CHK   0x08
+#define SCHN_STAT_CHN_CTRL_CHK   0x04
+#define SCHN_STAT_INTF_CTRL_CHK  0x02
+#define SCHN_STAT_CHAIN_CHECK    0x01
+
+/*
+ * architectured values for first sense byte
+ */
+#define SNS0_CMD_REJECT         0x80
+#define SNS_CMD_REJECT          SNS0_CMD_REJEC
+#define SNS0_INTERVENTION_REQ   0x40
+#define SNS0_BUS_OUT_CHECK      0x20
+#define SNS0_EQUIPMENT_CHECK    0x10
+#define SNS0_DATA_CHECK         0x08
+#define SNS0_OVERRUN            0x04
+#define SNS0_INCOMPL_DOMAIN     0x01
+
+/*
+ * architectured values for second sense byte
+ */
+#define SNS1_PERM_ERR           0x80
+#define SNS1_INV_TRACK_FORMAT   0x40
+#define SNS1_EOC                0x20
+#define SNS1_MESSAGE_TO_OPER    0x10
+#define SNS1_NO_REC_FOUND       0x08
+#define SNS1_FILE_PROTECTED     0x04
+#define SNS1_WRITE_INHIBITED    0x02
+#define SNS1_INPRECISE_END      0x01
+
+/*
+ * architectured values for third sense byte
+ */
+#define SNS2_REQ_INH_WRITE      0x80
+#define SNS2_CORRECTABLE        0x40
+#define SNS2_FIRST_LOG_ERR      0x20
+#define SNS2_ENV_DATA_PRESENT   0x10
+#define SNS2_INPRECISE_END      0x04
+
+struct ccw1 {
+        __u8  cmd_code;         /* command code */
+        __u8  flags;            /* flags, like IDA addressing, etc. */
+        __u16 count;            /* byte count */
+        __u32 cda;              /* data address */
+} __attribute__ ((packed,aligned(8)));
+
+#define CCW_FLAG_DC             0x80
+#define CCW_FLAG_CC             0x40
+#define CCW_FLAG_SLI            0x20
+#define CCW_FLAG_SKIP           0x10
+#define CCW_FLAG_PCI            0x08
+#define CCW_FLAG_IDA            0x04
+#define CCW_FLAG_SUSPEND        0x02
+
+#define CCW_CMD_READ_IPL        0x02
+#define CCW_CMD_NOOP            0x03
+#define CCW_CMD_BASIC_SENSE     0x04
+#define CCW_CMD_TIC             0x08
+#define CCW_CMD_STLCK           0x14
+#define CCW_CMD_SENSE_PGID      0x34
+#define CCW_CMD_SUSPEND_RECONN  0x5B
+#define CCW_CMD_RDC             0x64
+#define CCW_CMD_RELEASE         0x94
+#define CCW_CMD_SET_PGID        0xAF
+#define CCW_CMD_SENSE_ID        0xE4
+#define CCW_CMD_DCTL            0xF3
+
+#define SENSE_MAX_COUNT         0x20
+
+struct erw {
+        __u32 res0  : 3;        /* reserved */
+        __u32 auth  : 1;        /* Authorization check */
+        __u32 pvrf  : 1;        /* path-verification-required flag */
+        __u32 cpt   : 1;        /* channel-path timeout */
+        __u32 fsavf : 1;        /* Failing storage address validity flag */
+        __u32 cons  : 1;        /* concurrent-sense */
+        __u32 scavf : 1;        /* Secondary ccw address validity flag */
+        __u32 fsaf  : 1;        /* Failing storage address format */
+        __u32 scnt  : 6;        /* sense count if cons == 1 */
+        __u32 res16 : 16;       /* reserved */
+} __attribute__ ((packed));
+
+/*
+ * subchannel logout area
+ */
+struct sublog {
+        __u32 res0  : 1;        /* reserved */
+        __u32 esf   : 7;        /* extended status flags */
+        __u32 lpum  : 8;        /* last path used mask */
+        __u32 arep  : 1;        /* ancillary report */
+        __u32 fvf   : 5;        /* field-validity flags */
+        __u32 sacc  : 2;        /* storage access code */
+        __u32 termc : 2;        /* termination code */
+        __u32 devsc : 1;        /* device-status check */
+        __u32 serr  : 1;        /* secondary error */
+        __u32 ioerr : 1;        /* i/o-error alert */
+        __u32 seqc  : 3;        /* sequence code */
+} __attribute__ ((packed));
+
+/*
+ * Format 0 Extended Status Word (ESW)
+ */
+struct esw0 {
+        struct sublog sublog;   /* subchannel logout */
+        struct erw erw;         /* extended report word */
+        __u32  faddr[2];        /* failing storage address */
+        __u32  saddr;           /* secondary ccw address */
+} __attribute__ ((packed));
+
+/*
+ * Format 1 Extended Status Word (ESW)
+ */
+struct esw1 {
+        __u8  zero0;            /* reserved zeros */
+        __u8  lpum;             /* last path used mask */
+        __u16 zero16;           /* reserved zeros */
+        struct erw erw;         /* extended report word */
+        __u32 zeros[3];         /* 2 fullwords of zeros */
+} __attribute__ ((packed));
+
+/*
+ * Format 2 Extended Status Word (ESW)
+ */
+struct esw2 {
+        __u8  zero0;            /* reserved zeros */
+        __u8  lpum;             /* last path used mask */
+        __u16 dcti;             /* device-connect-time interval */
+        struct erw erw;         /* extended report word */
+        __u32 zeros[3];         /* 2 fullwords of zeros */
+} __attribute__ ((packed));
+
+/*
+ * Format 3 Extended Status Word (ESW)
+ */
+struct esw3 {
+        __u8  zero0;            /* reserved zeros */
+        __u8  lpum;             /* last path used mask */
+        __u16 res;              /* reserved */
+        struct erw erw;         /* extended report word */
+        __u32 zeros[3];         /* 2 fullwords of zeros */
+} __attribute__ ((packed));
+
+/*
+ * interruption response block
+ */
+struct irb {
+        struct scsw scsw;       /* subchannel status word */
+        union {                 /* extended status word, 4 formats */
+                struct esw0 esw0;
+                struct esw1 esw1;
+                struct esw2 esw2;
+                struct esw3 esw3;
+        } esw;
+        __u8   ecw[32];         /* extended control word */
+} __attribute__ ((packed,aligned(4)));
+
+/*
+ * command information word  (CIW) layout
+ */
+struct ciw {
+        __u32 et       :  2;    /* entry type */
+        __u32 reserved :  2;    /* reserved */
+        __u32 ct       :  4;    /* command type */
+        __u32 cmd      :  8;    /* command */
+        __u32 count    : 16;    /* coun */
+} __attribute__ ((packed));
+
+#define CIW_TYPE_RCD    0x0     /* read configuration data */
+#define CIW_TYPE_SII    0x1     /* set interface identifier */
+#define CIW_TYPE_RNI    0x2     /* read node identifier */
+
+/*
+ * Flags used as input parameters for do_IO()
+ */
+#define DOIO_ALLOW_SUSPEND       0x0001 /* allow for channel prog. suspend */
+#define DOIO_DENY_PREFETCH       0x0002 /* don't allow for CCW prefetch */
+#define DOIO_SUPPRESS_INTER      0x0004 /* suppress intermediate inter. */
+                                        /* ... for suspended CCWs */
+/* Device or subchannel gone. */
+#define CIO_GONE       0x0001
+/* No path to device. */
+#define CIO_NO_PATH    0x0002
+/* Device has appeared. */
+#define CIO_OPER       0x0004
+/* Sick revalidation of device. */
+#define CIO_REVALIDATE 0x0008
+
+struct diag210 {
+        __u16 vrdcdvno : 16;   /* device number (input) */
+        __u16 vrdclen  : 16;   /* data block length (input) */
+        __u32 vrdcvcla : 8;    /* virtual device class (output) */
+        __u32 vrdcvtyp : 8;    /* virtual device type (output) */
+        __u32 vrdcvsta : 8;    /* virtual device status (output) */
+        __u32 vrdcvfla : 8;    /* virtual device flags (output) */
+        __u32 vrdcrccl : 8;    /* real device class (output) */
+        __u32 vrdccrty : 8;    /* real device type (output) */
+        __u32 vrdccrmd : 8;    /* real device model (output) */
+        __u32 vrdccrft : 8;    /* real device feature (output) */
+} __attribute__ ((packed,aligned(4)));
+
+extern int diag210(struct diag210 *addr);
+
+extern void wait_cons_dev(void);
+
+extern void clear_all_subchannels(void);
+
+#endif
+
+#endif
diff --git a/include/asm-s390/cmb.h b/include/asm-s390/cmb.h
new file mode 100644
index 000000000000..1bfe2bd630b5
--- /dev/null
+++ b/include/asm-s390/cmb.h
@@ -0,0 +1,98 @@
+#ifndef S390_CMB_H
+#define S390_CMB_H
+/**
+ * struct cmbdata -- channel measurement block data for user space
+ *
+ * @size:       size of the stored data
+ * @ssch_rsch_count: XXX
+ * @sample_count:
+ * @device_connect_time:
+ * @function_pending_time:
+ * @device_disconnect_time:
+ * @control_unit_queuing_time:
+ * @device_active_only_time:
+ * @device_busy_time:
+ * @initial_command_response_time:
+ *
+ * all values are stored as 64 bit for simplicity, especially
+ * in 32 bit emulation mode. All time values are normalized to
+ * nanoseconds.
+ * Currently, two formats are known, which differ by the size of
+ * this structure, i.e. the last two members are only set when
+ * the extended channel measurement facility (first shipped in
+ * z990 machines) is activated.
+ * Potentially, more fields could be added, which results in a
+ * new ioctl number.
+ **/
+struct cmbdata {
+        __u64 size;
+        __u64 elapsed_time;
+ /* basic and exended format: */
+        __u64 ssch_rsch_count;
+        __u64 sample_count;
+        __u64 device_connect_time;
+        __u64 function_pending_time;
+        __u64 device_disconnect_time;
+        __u64 control_unit_queuing_time;
+        __u64 device_active_only_time;
+ /* extended format only: */
+        __u64 device_busy_time;
+        __u64 initial_command_response_time;
+};
+
+/* enable channel measurement */
+#define BIODASDCMFENABLE        _IO(DASD_IOCTL_LETTER,32)
+/* enable channel measurement */
+#define BIODASDCMFDISABLE       _IO(DASD_IOCTL_LETTER,33)
+/* reset channel measurement block */
+#define BIODASDRESETCMB         _IO(DASD_IOCTL_LETTER,34)
+/* read channel measurement data */
+#define BIODASDREADCMB          _IOWR(DASD_IOCTL_LETTER,32,u64)
+/* read channel measurement data */
+#define BIODASDREADALLCMB       _IOWR(DASD_IOCTL_LETTER,33,struct cmbdata)
+
+#ifdef __KERNEL__
+
+/**
+ * enable_cmf() - switch on the channel measurement for a specific device
+ *  @cdev:      The ccw device to be enabled
+ *  returns 0 for success or a negative error value.
+ *
+ *  Context:
+ *    non-atomic
+ **/
+extern int enable_cmf(struct ccw_device *cdev);
+
+/**
+ * disable_cmf() - switch off the channel measurement for a specific device
+ *  @cdev:      The ccw device to be disabled
+ *  returns 0 for success or a negative error value.
+ *
+ *  Context:
+ *    non-atomic
+ **/
+extern int disable_cmf(struct ccw_device *cdev);
+
+/**
+ * cmf_read() - read one value from the current channel measurement block
+ * @cmf:        the channel to be read
+ * @index:      the name of the value that is read
+ *
+ *  Context:
+ *    any
+ **/
+
+extern u64 cmf_read(struct ccw_device *cdev, int index);
+/**
+ * cmf_readall() - read one value from the current channel measurement block
+ * @cmf:        the channel to be read
+ * @data:       a pointer to a data block that will be filled
+ *
+ *  Context:
+ *    any
+ **/
+extern int cmf_readall(struct ccw_device *cdev, struct cmbdata*data);
+extern void cmf_reset(struct ccw_device *cdev);
+
+#endif /* __KERNEL__ */
+#endif /* S390_CMB_H */
diff --git a/include/asm-s390/compat.h b/include/asm-s390/compat.h
new file mode 100644
index 000000000000..7f8f544eb262
--- /dev/null
+++ b/include/asm-s390/compat.h
@@ -0,0 +1,198 @@
+#ifndef _ASM_S390X_COMPAT_H
+#define _ASM_S390X_COMPAT_H
+/*
+ * Architecture specific compatibility types
+ */
+#include <linux/types.h>
+#include <linux/sched.h>
+
+#define COMPAT_USER_HZ  100
+
+typedef u32             compat_size_t;
+typedef s32             compat_ssize_t;
+typedef s32             compat_time_t;
+typedef s32             compat_clock_t;
+typedef s32             compat_pid_t;
+typedef u16             compat_uid_t;
+typedef u16             compat_gid_t;
+typedef u32             compat_uid32_t;
+typedef u32             compat_gid32_t;
+typedef u16             compat_mode_t;
+typedef u32             compat_ino_t;
+typedef u16             compat_dev_t;
+typedef s32             compat_off_t;
+typedef s64             compat_loff_t;
+typedef u16             compat_nlink_t;
+typedef u16             compat_ipc_pid_t;
+typedef s32             compat_daddr_t;
+typedef u32             compat_caddr_t;
+typedef __kernel_fsid_t compat_fsid_t;
+typedef s32             compat_key_t;
+typedef s32             compat_timer_t;
+
+typedef s32             compat_int_t;
+typedef s32             compat_long_t;
+typedef u32             compat_uint_t;
+typedef u32             compat_ulong_t;
+
+struct compat_timespec {
+        compat_time_t   tv_sec;
+        s32             tv_nsec;
+};
+
+struct compat_timeval {
+        compat_time_t   tv_sec;
+        s32             tv_usec;
+};
+
+struct compat_stat {
+        compat_dev_t    st_dev;
+        u16             __pad1;
+        compat_ino_t    st_ino;
+        compat_mode_t   st_mode;
+        compat_nlink_t  st_nlink;
+        compat_uid_t    st_uid;
+        compat_gid_t    st_gid;
+        compat_dev_t    st_rdev;
+        u16             __pad2;
+        u32             st_size;
+        u32             st_blksize;
+        u32             st_blocks;
+        u32             st_atime;
+        u32             st_atime_nsec;
+        u32             st_mtime;
+        u32             st_mtime_nsec;
+        u32             st_ctime;
+        u32             st_ctime_nsec;
+        u32             __unused4;
+        u32             __unused5;
+};
+
+struct compat_flock {
+        short           l_type;
+        short           l_whence;
+        compat_off_t    l_start;
+        compat_off_t    l_len;
+        compat_pid_t    l_pid;
+};
+
+#define F_GETLK64       12
+#define F_SETLK64       13
+#define F_SETLKW64      14    
+
+struct compat_flock64 {
+        short           l_type;
+        short           l_whence;
+        compat_loff_t   l_start;
+        compat_loff_t   l_len;
+        compat_pid_t    l_pid;
+};
+
+struct compat_statfs {
+        s32             f_type;
+        s32             f_bsize;
+        s32             f_blocks;
+        s32             f_bfree;
+        s32             f_bavail;
+        s32             f_files;
+        s32             f_ffree;
+        compat_fsid_t   f_fsid;
+        s32             f_namelen;
+        s32             f_frsize;
+        s32             f_spare[6];
+};
+
+#define COMPAT_RLIM_OLD_INFINITY        0x7fffffff
+#define COMPAT_RLIM_INFINITY            0xffffffff
+
+typedef u32             compat_old_sigset_t;    /* at least 32 bits */
+
+#define _COMPAT_NSIG            64
+#define _COMPAT_NSIG_BPW        32
+
+typedef u32             compat_sigset_word;
+
+#define COMPAT_OFF_T_MAX        0x7fffffff
+#define COMPAT_LOFF_T_MAX       0x7fffffffffffffffL
+
+/*
+ * A pointer passed in from user mode. This should not
+ * be used for syscall parameters, just declare them
+ * as pointers because the syscall entry code will have
+ * appropriately comverted them already.
+ */
+typedef u32             compat_uptr_t;
+
+static inline void __user *compat_ptr(compat_uptr_t uptr)
+{
+        return (void __user *)(unsigned long)(uptr & 0x7fffffffUL);
+}
+
+static inline void __user *compat_alloc_user_space(long len)
+{
+        unsigned long stack;
+
+        stack = KSTK_ESP(current);
+        if (test_thread_flag(TIF_31BIT))
+                stack &= 0x7fffffffUL;
+        return (void __user *) (stack - len);
+}
+
+struct compat_ipc64_perm {
+        compat_key_t key;
+        compat_uid32_t uid;
+        compat_gid32_t gid;
+        compat_uid32_t cuid;
+        compat_gid32_t cgid;
+        compat_mode_t mode;
+        unsigned short __pad1;
+        unsigned short seq;
+        unsigned short __pad2;
+        unsigned int __unused1;
+        unsigned int __unused2;
+};
+
+struct compat_semid64_ds {
+        struct compat_ipc64_perm sem_perm;
+        compat_time_t  sem_otime;
+        compat_ulong_t __pad1;
+        compat_time_t  sem_ctime;
+        compat_ulong_t __pad2;
+        compat_ulong_t sem_nsems;
+        compat_ulong_t __unused1;
+        compat_ulong_t __unused2;
+};
+
+struct compat_msqid64_ds {
+        struct compat_ipc64_perm msg_perm;
+        compat_time_t   msg_stime;
+        compat_ulong_t __pad1;
+        compat_time_t   msg_rtime;
+        compat_ulong_t __pad2;
+        compat_time_t   msg_ctime;
+        compat_ulong_t __pad3;
+        compat_ulong_t msg_cbytes;
+        compat_ulong_t msg_qnum;
+        compat_ulong_t msg_qbytes;
+        compat_pid_t   msg_lspid;
+        compat_pid_t   msg_lrpid;
+        compat_ulong_t __unused1;
+        compat_ulong_t __unused2;
+};
+
+struct compat_shmid64_ds {
+        struct compat_ipc64_perm shm_perm;
+        compat_size_t  shm_segsz;
+        compat_time_t  shm_atime;
+        compat_ulong_t __pad1;
+        compat_time_t  shm_dtime;
+        compat_ulong_t __pad2;
+        compat_time_t  shm_ctime;
+        compat_ulong_t __pad3;
+        compat_pid_t   shm_cpid;
+        compat_pid_t   shm_lpid;
+        compat_ulong_t shm_nattch;
+        compat_ulong_t __unused1;
+        compat_ulong_t __unused2;
+};
+#endif /* _ASM_S390X_COMPAT_H */
diff --git a/include/asm-s390/cpcmd.h b/include/asm-s390/cpcmd.h
new file mode 100644
index 000000000000..1d33c5da083e
--- /dev/null
+++ b/include/asm-s390/cpcmd.h
@@ -0,0 +1,24 @@
+/*
+ *  arch/s390/kernel/cpcmd.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com),
+ *               Christian Borntraeger (cborntra@de.ibm.com),
+ */
+
+#ifndef __CPCMD__
+#define __CPCMD__
+
+/*
+ * the caller of __cpcmd has to ensure that the response buffer is below 2 GB
+ */
+extern void __cpcmd(char *cmd, char *response, int rlen);
+
+#ifndef __s390x__
+#define cpcmd __cpcmd
+#else
+extern void cpcmd(char *cmd, char *response, int rlen);
+#endif /*__s390x__*/
+
+#endif
diff --git a/include/asm-s390/cputime.h b/include/asm-s390/cputime.h
new file mode 100644
index 000000000000..4b3ef7cad115
--- /dev/null
+++ b/include/asm-s390/cputime.h
@@ -0,0 +1,176 @@
+/*
+ *  include/asm-s390/cputime.h
+ *
+ *  (C) Copyright IBM Corp. 2004
+ *
+ *  Author: Martin Schwidefsky <schwidefsky@de.ibm.com>
+ */
+
+#ifndef _S390_CPUTIME_H
+#define _S390_CPUTIME_H
+
+#include <asm/div64.h>
+
+/* We want to use micro-second resolution. */
+
+typedef unsigned long long cputime_t;
+typedef unsigned long long cputime64_t;
+
+#ifndef __s390x__
+
+static inline unsigned int
+__div(unsigned long long n, unsigned int base)
+{
+        register_pair rp;
+
+        rp.pair = n >> 1;
+        asm ("dr %0,%1" : "+d" (rp) : "d" (base >> 1));
+        return rp.subreg.odd;
+}
+
+#else /* __s390x__ */
+
+static inline unsigned int
+__div(unsigned long long n, unsigned int base)
+{
+        return n / base;
+}
+
+#endif /* __s390x__ */
+
+#define cputime_zero                    (0ULL)
+#define cputime_max                     ((~0UL >> 1) - 1)
+#define cputime_add(__a, __b)           ((__a) +  (__b))
+#define cputime_sub(__a, __b)           ((__a) -  (__b))
+#define cputime_div(__a, __n) ({                \
+        unsigned long long __div = (__a);       \
+        do_div(__div,__n);                      \
+        __div;                                  \
+})
+#define cputime_halve(__a)              ((__a) >> 1)
+#define cputime_eq(__a, __b)            ((__a) == (__b))
+#define cputime_gt(__a, __b)            ((__a) >  (__b))
+#define cputime_ge(__a, __b)            ((__a) >= (__b))
+#define cputime_lt(__a, __b)            ((__a) <  (__b))
+#define cputime_le(__a, __b)            ((__a) <= (__b))
+#define cputime_to_jiffies(__ct)        (__div((__ct), 1000000 / HZ))
+#define jiffies_to_cputime(__hz)        ((cputime_t)(__hz) * (1000000 / HZ))
+
+#define cputime64_zero                  (0ULL)
+#define cputime64_add(__a, __b)         ((__a) + (__b))
+#define cputime_to_cputime64(__ct)      (__ct)
+
+static inline u64
+cputime64_to_jiffies64(cputime64_t cputime)
+{
+        do_div(cputime, 1000000 / HZ);
+        return cputime;
+}
+
+/*
+ * Convert cputime to milliseconds and back.
+ */
+static inline unsigned int
+cputime_to_msecs(const cputime_t cputime)
+{
+        return __div(cputime, 1000);
+}
+
+static inline cputime_t
+msecs_to_cputime(const unsigned int m)
+{
+        return (cputime_t) m * 1000;
+}
+
+/*
+ * Convert cputime to milliseconds and back.
+ */
+static inline unsigned int
+cputime_to_secs(const cputime_t cputime)
+{
+        return __div(cputime, 1000000);
+}
+
+static inline cputime_t
+secs_to_cputime(const unsigned int s)
+{
+        return (cputime_t) s * 1000000;
+}
+
+/*
+ * Convert cputime to timespec and back.
+ */
+static inline cputime_t
+timespec_to_cputime(const struct timespec *value)
+{
+        return value->tv_nsec / 1000 + (u64) value->tv_sec * 1000000;
+}
+
+static inline void
+cputime_to_timespec(const cputime_t cputime, struct timespec *value)
+{
+#ifndef __s390x__
+        register_pair rp;
+
+        rp.pair = cputime >> 1;
+        asm ("dr %0,%1" : "+d" (rp) : "d" (1000000 >> 1));
+        value->tv_nsec = rp.subreg.even * 1000;
+        value->tv_sec = rp.subreg.odd;
+#else
+        value->tv_nsec = (cputime % 1000000) * 1000;
+        value->tv_sec = cputime / 1000000;
+#endif
+}
+
+/*
+ * Convert cputime to timeval and back.
+ * Since cputime and timeval have the same resolution (microseconds)
+ * this is easy.
+ */
+static inline cputime_t
+timeval_to_cputime(const struct timeval *value)
+{
+        return value->tv_usec + (u64) value->tv_sec * 1000000;
+}
+
+static inline void
+cputime_to_timeval(const cputime_t cputime, struct timeval *value)
+{
+#ifndef __s390x__
+        register_pair rp;
+
+        rp.pair = cputime >> 1;
+        asm ("dr %0,%1" : "+d" (rp) : "d" (1000000 >> 1));
+        value->tv_usec = rp.subreg.even;
+        value->tv_sec = rp.subreg.odd;
+#else
+        value->tv_usec = cputime % 1000000;
+        value->tv_sec = cputime / 1000000;
+#endif
+}
+
+/*
+ * Convert cputime to clock and back.
+ */
+static inline clock_t
+cputime_to_clock_t(cputime_t cputime)
+{
+        return __div(cputime, 1000000 / USER_HZ);
+}
+
+static inline cputime_t
+clock_t_to_cputime(unsigned long x)
+{
+        return (cputime_t) x * (1000000 / USER_HZ);
+}
+
+/*
+ * Convert cputime64 to clock.
+ */
+static inline clock_t
+cputime64_to_clock_t(cputime64_t cputime)
+{
+       return __div(cputime, 1000000 / USER_HZ);
+}
+
+#endif /* _S390_CPUTIME_H */
diff --git a/include/asm-s390/current.h b/include/asm-s390/current.h
new file mode 100644
index 000000000000..83cf36cde2da
--- /dev/null
+++ b/include/asm-s390/current.h
@@ -0,0 +1,23 @@
+/*
+ *  include/asm-s390/current.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
+ *
+ *  Derived from "include/asm-i386/current.h"
+ */
+
+#ifndef _S390_CURRENT_H
+#define _S390_CURRENT_H
+
+#ifdef __KERNEL__
+#include <asm/lowcore.h>
+
+struct task_struct;
+
+#define current ((struct task_struct *const)S390_lowcore.current_task)
+
+#endif
+
+#endif /* !(_S390_CURRENT_H) */
diff --git a/include/asm-s390/dasd.h b/include/asm-s390/dasd.h
new file mode 100644
index 000000000000..77b10d6adabd
--- /dev/null
+++ b/include/asm-s390/dasd.h
@@ -0,0 +1,268 @@
+/* 
+ * File...........: linux/drivers/s390/block/dasd.c
+ * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com>
+ * Bugreports.to..: <Linux390@de.ibm.com>
+ * (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 1999,2000
+ *
+ * This file is the interface of the DASD device driver, which is exported to user space
+ * any future changes wrt the API will result in a change of the APIVERSION reported
+ * to userspace by the DASDAPIVER-ioctl
+ *
+ * $Revision: 1.6 $
+ *
+ */
+
+#ifndef DASD_H
+#define DASD_H
+#include <linux/ioctl.h>
+
+#define DASD_IOCTL_LETTER 'D'
+
+#define DASD_API_VERSION 6
+
+/* 
+ * struct dasd_information2_t
+ * represents any data about the device, which is visible to userspace.
+ *  including foramt and featueres.
+ */
+typedef struct dasd_information2_t {
+        unsigned int devno;         /* S/390 devno */
+        unsigned int real_devno;    /* for aliases */
+        unsigned int schid;         /* S/390 subchannel identifier */
+        unsigned int cu_type  : 16; /* from SenseID */
+        unsigned int cu_model :  8; /* from SenseID */
+        unsigned int dev_type : 16; /* from SenseID */
+        unsigned int dev_model : 8; /* from SenseID */
+        unsigned int open_count; 
+        unsigned int req_queue_len; 
+        unsigned int chanq_len;     /* length of chanq */
+        char type[4];               /* from discipline.name, 'none' for unknown */
+        unsigned int status;        /* current device level */
+        unsigned int label_block;   /* where to find the VOLSER */
+        unsigned int FBA_layout;    /* fixed block size (like AIXVOL) */
+        unsigned int characteristics_size;
+        unsigned int confdata_size;
+        char characteristics[64];   /* from read_device_characteristics */
+        char configuration_data[256]; /* from read_configuration_data */
+        unsigned int format;          /* format info like formatted/cdl/ldl/... */
+        unsigned int features;        /* dasd features like 'ro',...            */
+        unsigned int reserved0;       /* reserved for further use ,...          */
+        unsigned int reserved1;       /* reserved for further use ,...          */
+        unsigned int reserved2;       /* reserved for further use ,...          */
+        unsigned int reserved3;       /* reserved for further use ,...          */
+        unsigned int reserved4;       /* reserved for further use ,...          */
+        unsigned int reserved5;       /* reserved for further use ,...          */
+        unsigned int reserved6;       /* reserved for further use ,...          */
+        unsigned int reserved7;       /* reserved for further use ,...          */
+} dasd_information2_t;
+
+/*
+ * values to be used for dasd_information_t.format
+ * 0x00: NOT formatted
+ * 0x01: Linux disc layout
+ * 0x02: Common disc layout
+ */
+#define DASD_FORMAT_NONE 0
+#define DASD_FORMAT_LDL  1
+#define DASD_FORMAT_CDL  2
+/*
+ * values to be used for dasd_information_t.features
+ * 0x00: default features
+ * 0x01: readonly (ro)
+ * 0x02: use diag discipline (diag)
+ */
+#define DASD_FEATURE_DEFAULT  0
+#define DASD_FEATURE_READONLY 1
+#define DASD_FEATURE_USEDIAG  2
+
+#define DASD_PARTN_BITS 2
+
+/* 
+ * struct dasd_information_t
+ * represents any data about the data, which is visible to userspace
+ */
+typedef struct dasd_information_t {
+        unsigned int devno;         /* S/390 devno */
+        unsigned int real_devno;    /* for aliases */
+        unsigned int schid;         /* S/390 subchannel identifier */
+        unsigned int cu_type  : 16; /* from SenseID */
+        unsigned int cu_model :  8; /* from SenseID */
+        unsigned int dev_type : 16; /* from SenseID */
+        unsigned int dev_model : 8; /* from SenseID */
+        unsigned int open_count; 
+        unsigned int req_queue_len; 
+        unsigned int chanq_len;     /* length of chanq */
+        char type[4];               /* from discipline.name, 'none' for unknown */
+        unsigned int status;        /* current device level */
+        unsigned int label_block;   /* where to find the VOLSER */
+        unsigned int FBA_layout;    /* fixed block size (like AIXVOL) */
+        unsigned int characteristics_size;
+        unsigned int confdata_size;
+        char characteristics[64];   /* from read_device_characteristics */
+        char configuration_data[256]; /* from read_configuration_data */
+} dasd_information_t;
+
+/*
+ * Read Subsystem Data - Perfomance Statistics
+ */ 
+typedef struct dasd_rssd_perf_stats_t {
+        unsigned char  invalid:1;
+        unsigned char  format:3;
+        unsigned char  data_format:4;
+        unsigned char  unit_address;
+        unsigned short device_status;
+        unsigned int   nr_read_normal;
+        unsigned int   nr_read_normal_hits;
+        unsigned int   nr_write_normal;
+        unsigned int   nr_write_fast_normal_hits;
+        unsigned int   nr_read_seq;
+        unsigned int   nr_read_seq_hits;
+        unsigned int   nr_write_seq;
+        unsigned int   nr_write_fast_seq_hits;
+        unsigned int   nr_read_cache;
+        unsigned int   nr_read_cache_hits;
+        unsigned int   nr_write_cache;
+        unsigned int   nr_write_fast_cache_hits;
+        unsigned int   nr_inhibit_cache;
+        unsigned int   nr_bybass_cache;
+        unsigned int   nr_seq_dasd_to_cache;
+        unsigned int   nr_dasd_to_cache;
+        unsigned int   nr_cache_to_dasd;
+        unsigned int   nr_delayed_fast_write;
+        unsigned int   nr_normal_fast_write;
+        unsigned int   nr_seq_fast_write;
+        unsigned int   nr_cache_miss;
+        unsigned char  status2;
+        unsigned int   nr_quick_write_promotes;
+        unsigned char  reserved;
+        unsigned short ssid;
+        unsigned char  reseved2[96];
+} __attribute__((packed)) dasd_rssd_perf_stats_t;
+
+/* 
+ * struct profile_info_t
+ * holds the profinling information 
+ */
+typedef struct dasd_profile_info_t {
+        unsigned int dasd_io_reqs;       /* number of requests processed at all */
+        unsigned int dasd_io_sects;      /* number of sectors processed at all */
+        unsigned int dasd_io_secs[32];   /* histogram of request's sizes */
+        unsigned int dasd_io_times[32];  /* histogram of requests's times */
+        unsigned int dasd_io_timps[32];  /* histogram of requests's times per sector */
+        unsigned int dasd_io_time1[32];  /* histogram of time from build to start */
+        unsigned int dasd_io_time2[32];  /* histogram of time from start to irq */
+        unsigned int dasd_io_time2ps[32]; /* histogram of time from start to irq */
+        unsigned int dasd_io_time3[32];  /* histogram of time from irq to end */
+        unsigned int dasd_io_nr_req[32]; /* histogram of # of requests in chanq */
+} dasd_profile_info_t;
+
+/* 
+ * struct format_data_t
+ * represents all data necessary to format a dasd
+ */
+typedef struct format_data_t {
+        int start_unit; /* from track */
+        int stop_unit;  /* to track */
+        int blksize;    /* sectorsize */
+        int intensity;  
+} format_data_t;
+
+/*
+ * values to be used for format_data_t.intensity
+ * 0/8: normal format
+ * 1/9: also write record zero
+ * 3/11: also write home address
+ * 4/12: invalidate track
+ */
+#define DASD_FMT_INT_FMT_R0 1 /* write record zero */
+#define DASD_FMT_INT_FMT_HA 2 /* write home address, also set FMT_R0 ! */
+#define DASD_FMT_INT_INVAL  4 /* invalidate tracks */
+#define DASD_FMT_INT_COMPAT 8 /* use OS/390 compatible disk layout */
+
+
+/* 
+ * struct attrib_data_t
+ * represents the operation (cache) bits for the device.
+ * Used in DE to influence caching of the DASD.
+ */
+typedef struct attrib_data_t {
+        unsigned char operation:3;     /* cache operation mode */
+        unsigned char reserved:5;      /* cache operation mode */
+        __u16         nr_cyl;          /* no of cyliners for read ahaed */
+        __u8          reserved2[29];   /* for future use */
+} __attribute__ ((packed)) attrib_data_t;
+
+/* definition of operation (cache) bits within attributes of DE */
+#define DASD_NORMAL_CACHE  0x0
+#define DASD_BYPASS_CACHE  0x1
+#define DASD_INHIBIT_LOAD  0x2
+#define DASD_SEQ_ACCESS    0x3
+#define DASD_SEQ_PRESTAGE  0x4
+#define DASD_REC_ACCESS    0x5
+
+
+/********************************************************************************
+ * SECTION: Definition of IOCTLs
+ *
+ * Here ist how the ioctl-nr should be used:
+ *    0 -   31   DASD driver itself
+ *   32 -  239   still open
+ *  240 -  255   reserved for EMC 
+ *******************************************************************************/
+
+/* Disable the volume (for Linux) */
+#define BIODASDDISABLE _IO(DASD_IOCTL_LETTER,0) 
+/* Enable the volume (for Linux) */
+#define BIODASDENABLE  _IO(DASD_IOCTL_LETTER,1)  
+/* Issue a reserve/release command, rsp. */
+#define BIODASDRSRV    _IO(DASD_IOCTL_LETTER,2) /* reserve */
+#define BIODASDRLSE    _IO(DASD_IOCTL_LETTER,3) /* release */
+#define BIODASDSLCK    _IO(DASD_IOCTL_LETTER,4) /* steal lock */
+/* reset profiling information of a device */
+#define BIODASDPRRST   _IO(DASD_IOCTL_LETTER,5)
+/* Quiesce IO on device */
+#define BIODASDQUIESCE _IO(DASD_IOCTL_LETTER,6) 
+/* Resume IO on device */
+#define BIODASDRESUME  _IO(DASD_IOCTL_LETTER,7) 
+
+
+/* retrieve API version number */
+#define DASDAPIVER     _IOR(DASD_IOCTL_LETTER,0,int)
+/* Get information on a dasd device */
+#define BIODASDINFO    _IOR(DASD_IOCTL_LETTER,1,dasd_information_t)
+/* retrieve profiling information of a device */
+#define BIODASDPRRD    _IOR(DASD_IOCTL_LETTER,2,dasd_profile_info_t)
+/* Get information on a dasd device (enhanced) */
+#define BIODASDINFO2   _IOR(DASD_IOCTL_LETTER,3,dasd_information2_t)
+/* Performance Statistics Read */
+#define BIODASDPSRD    _IOR(DASD_IOCTL_LETTER,4,dasd_rssd_perf_stats_t)
+/* Get Attributes (cache operations) */
+#define BIODASDGATTR   _IOR(DASD_IOCTL_LETTER,5,attrib_data_t) 
+
+
+/* #define BIODASDFORMAT  _IOW(IOCTL_LETTER,0,format_data_t) , deprecated */
+#define BIODASDFMT     _IOW(DASD_IOCTL_LETTER,1,format_data_t) 
+/* Set Attributes (cache operations) */
+#define BIODASDSATTR   _IOW(DASD_IOCTL_LETTER,2,attrib_data_t) 
+
+
+#endif                          /* DASD_H */
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 4 
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -4
+ * c-argdecl-indent: 4
+ * c-label-offset: -4
+ * c-continued-statement-offset: 4
+ * c-continued-brace-offset: 0
+ * indent-tabs-mode: nil
+ * tab-width: 8
+ * End:
+ */
diff --git a/include/asm-s390/debug.h b/include/asm-s390/debug.h
new file mode 100644
index 000000000000..28ef2354b1b2
--- /dev/null
+++ b/include/asm-s390/debug.h
@@ -0,0 +1,249 @@
+/*
+ *  include/asm-s390/debug.h
+ *   S/390 debug facility
+ *
+ *    Copyright (C) 1999, 2000 IBM Deutschland Entwicklung GmbH,
+ *                             IBM Corporation
+ */
+
+#ifndef DEBUG_H
+#define DEBUG_H
+
+#include <linux/string.h>
+
+/* Note:
+ * struct __debug_entry must be defined outside of #ifdef __KERNEL__ 
+ * in order to allow a user program to analyze the 'raw'-view.
+ */
+
+struct __debug_entry{
+        union {
+                struct {
+                        unsigned long long clock:52;
+                        unsigned long long exception:1;
+                        unsigned long long level:3;
+                        unsigned long long cpuid:8;
+                } fields;
+
+                unsigned long long stck;
+        } id;
+        void* caller;
+} __attribute__((packed));
+
+
+#define __DEBUG_FEATURE_VERSION      1  /* version of debug feature */
+
+#ifdef __KERNEL__
+#include <linux/spinlock.h>
+#include <linux/kernel.h>
+#include <linux/time.h>
+#include <linux/proc_fs.h>
+
+#define DEBUG_MAX_LEVEL            6  /* debug levels range from 0 to 6 */
+#define DEBUG_OFF_LEVEL            -1 /* level where debug is switched off */
+#define DEBUG_FLUSH_ALL            -1 /* parameter to flush all areas */
+#define DEBUG_MAX_VIEWS            10 /* max number of views in proc fs */
+#define DEBUG_MAX_PROCF_LEN        16 /* max length for a proc file name */
+#define DEBUG_DEFAULT_LEVEL        3  /* initial debug level */
+
+#define DEBUG_DIR_ROOT "s390dbf" /* name of debug root directory in proc fs */
+
+#define DEBUG_DATA(entry) (char*)(entry + 1) /* data is stored behind */
+                                             /* the entry information */
+
+#define STCK(x) asm volatile ("STCK 0(%1)" : "=m" (x) : "a" (&(x)) : "cc")
+
+typedef struct __debug_entry debug_entry_t;
+
+struct debug_view;
+
+typedef struct debug_info {     
+        struct debug_info* next;
+        struct debug_info* prev;
+        atomic_t ref_count;
+        spinlock_t lock;                        
+        int level;
+        int nr_areas;
+        int page_order;
+        int buf_size;
+        int entry_size; 
+        debug_entry_t** areas;
+        int active_area;
+        int *active_entry;
+        struct proc_dir_entry* proc_root_entry;
+        struct proc_dir_entry* proc_entries[DEBUG_MAX_VIEWS];
+        struct debug_view* views[DEBUG_MAX_VIEWS];      
+        char name[DEBUG_MAX_PROCF_LEN];
+} debug_info_t;
+
+typedef int (debug_header_proc_t) (debug_info_t* id,
+                                   struct debug_view* view,
+                                   int area,
+                                   debug_entry_t* entry,
+                                   char* out_buf);
+
+typedef int (debug_format_proc_t) (debug_info_t* id,
+                                   struct debug_view* view, char* out_buf,
+                                   const char* in_buf);
+typedef int (debug_prolog_proc_t) (debug_info_t* id,
+                                   struct debug_view* view,
+                                   char* out_buf);
+typedef int (debug_input_proc_t) (debug_info_t* id,
+                                  struct debug_view* view,
+                                  struct file* file,
+                                  const char __user *user_buf,
+                                  size_t in_buf_size, loff_t* offset);
+
+int debug_dflt_header_fn(debug_info_t* id, struct debug_view* view,
+                         int area, debug_entry_t* entry, char* out_buf);                                                
+                                
+struct debug_view {
+        char name[DEBUG_MAX_PROCF_LEN];
+        debug_prolog_proc_t* prolog_proc;
+        debug_header_proc_t* header_proc;
+        debug_format_proc_t* format_proc;
+        debug_input_proc_t*  input_proc;
+        void*                private_data;
+};
+
+extern struct debug_view debug_hex_ascii_view;
+extern struct debug_view debug_raw_view;
+extern struct debug_view debug_sprintf_view;
+
+/* do NOT use the _common functions */
+
+debug_entry_t* debug_event_common(debug_info_t* id, int level, 
+                                  const void* data, int length);
+
+debug_entry_t* debug_exception_common(debug_info_t* id, int level, 
+                                      const void* data, int length);
+
+/* Debug Feature API: */
+
+debug_info_t* debug_register(char* name, int pages_index, int nr_areas,
+                             int buf_size);
+
+void debug_unregister(debug_info_t* id);
+
+void debug_set_level(debug_info_t* id, int new_level);
+
+void debug_stop_all(void);
+
+extern inline debug_entry_t* 
+debug_event(debug_info_t* id, int level, void* data, int length)
+{
+        if ((!id) || (level > id->level)) return NULL;
+        return debug_event_common(id,level,data,length);
+}
+
+extern inline debug_entry_t* 
+debug_int_event(debug_info_t* id, int level, unsigned int tag)
+{
+        unsigned int t=tag;
+        if ((!id) || (level > id->level)) return NULL;
+        return debug_event_common(id,level,&t,sizeof(unsigned int));
+}
+
+extern inline debug_entry_t *
+debug_long_event (debug_info_t* id, int level, unsigned long tag)
+{
+        unsigned long t=tag;
+        if ((!id) || (level > id->level)) return NULL;
+        return debug_event_common(id,level,&t,sizeof(unsigned long));
+}
+
+extern inline debug_entry_t* 
+debug_text_event(debug_info_t* id, int level, const char* txt)
+{
+        if ((!id) || (level > id->level)) return NULL;
+        return debug_event_common(id,level,txt,strlen(txt));
+}
+
+extern debug_entry_t *
+debug_sprintf_event(debug_info_t* id,int level,char *string,...)
+        __attribute__ ((format(printf, 3, 4)));
+
+
+extern inline debug_entry_t* 
+debug_exception(debug_info_t* id, int level, void* data, int length)
+{
+        if ((!id) || (level > id->level)) return NULL;
+        return debug_exception_common(id,level,data,length);
+}
+
+extern inline debug_entry_t* 
+debug_int_exception(debug_info_t* id, int level, unsigned int tag)
+{
+        unsigned int t=tag;
+        if ((!id) || (level > id->level)) return NULL;
+        return debug_exception_common(id,level,&t,sizeof(unsigned int));
+}
+
+extern inline debug_entry_t * 
+debug_long_exception (debug_info_t* id, int level, unsigned long tag)
+{
+        unsigned long t=tag;
+        if ((!id) || (level > id->level)) return NULL;
+        return debug_exception_common(id,level,&t,sizeof(unsigned long));
+}
+
+extern inline debug_entry_t* 
+debug_text_exception(debug_info_t* id, int level, const char* txt)
+{
+        if ((!id) || (level > id->level)) return NULL;
+        return debug_exception_common(id,level,txt,strlen(txt));
+}
+
+
+extern debug_entry_t *
+debug_sprintf_exception(debug_info_t* id,int level,char *string,...)
+        __attribute__ ((format(printf, 3, 4)));
+
+int debug_register_view(debug_info_t* id, struct debug_view* view);
+int debug_unregister_view(debug_info_t* id, struct debug_view* view);
+
+/*
+   define the debug levels:
+   - 0 No debugging output to console or syslog
+   - 1 Log internal errors to syslog, ignore check conditions 
+   - 2 Log internal errors and check conditions to syslog
+   - 3 Log internal errors to console, log check conditions to syslog
+   - 4 Log internal errors and check conditions to console
+   - 5 panic on internal errors, log check conditions to console
+   - 6 panic on both, internal errors and check conditions
+ */
+
+#ifndef DEBUG_LEVEL
+#define DEBUG_LEVEL 4
+#endif
+
+#define INTERNAL_ERRMSG(x,y...) "E" __FILE__ "%d: " x, __LINE__, y
+#define INTERNAL_WRNMSG(x,y...) "W" __FILE__ "%d: " x, __LINE__, y
+#define INTERNAL_INFMSG(x,y...) "I" __FILE__ "%d: " x, __LINE__, y
+#define INTERNAL_DEBMSG(x,y...) "D" __FILE__ "%d: " x, __LINE__, y
+
+#if DEBUG_LEVEL > 0
+#define PRINT_DEBUG(x...) printk ( KERN_DEBUG PRINTK_HEADER x )
+#define PRINT_INFO(x...) printk ( KERN_INFO PRINTK_HEADER x )
+#define PRINT_WARN(x...) printk ( KERN_WARNING PRINTK_HEADER x )
+#define PRINT_ERR(x...) printk ( KERN_ERR PRINTK_HEADER x )
+#define PRINT_FATAL(x...) panic ( PRINTK_HEADER x )
+#else
+#define PRINT_DEBUG(x...) printk ( KERN_DEBUG PRINTK_HEADER x )
+#define PRINT_INFO(x...) printk ( KERN_DEBUG PRINTK_HEADER x )
+#define PRINT_WARN(x...) printk ( KERN_DEBUG PRINTK_HEADER x )
+#define PRINT_ERR(x...) printk ( KERN_DEBUG PRINTK_HEADER x )
+#define PRINT_FATAL(x...) printk ( KERN_DEBUG PRINTK_HEADER x )
+#endif                          /* DASD_DEBUG */
+
+#undef DEBUG_MALLOC
+#ifdef DEBUG_MALLOC
+void *b;
+#define kmalloc(x...) (PRINT_INFO(" kmalloc %p\n",b=kmalloc(x)),b)
+#define kfree(x) PRINT_INFO(" kfree %p\n",x);kfree(x)
+#define get_zeroed_page(x...) (PRINT_INFO(" gfp %p\n",b=get_zeroed_page(x)),b)
+#define __get_free_pages(x...) (PRINT_INFO(" gfps %p\n",b=__get_free_pages(x)),b)
+#endif                          /* DEBUG_MALLOC */
+
+#endif                          /* __KERNEL__ */
+#endif                          /* DEBUG_H */
diff --git a/include/asm-s390/delay.h b/include/asm-s390/delay.h
new file mode 100644
index 000000000000..78357314c450
--- /dev/null
+++ b/include/asm-s390/delay.h
@@ -0,0 +1,22 @@
+/*
+ *  include/asm-s390/delay.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
+ *
+ *  Derived from "include/asm-i386/delay.h"
+ *    Copyright (C) 1993 Linus Torvalds
+ *
+ *  Delay routines calling functions in arch/s390/lib/delay.c
+ */
+ 
+#ifndef _S390_DELAY_H
+#define _S390_DELAY_H
+
+extern void __udelay(unsigned long usecs);
+extern void __delay(unsigned long loops);
+
+#define udelay(n) __udelay(n)
+
+#endif /* defined(_S390_DELAY_H) */
diff --git a/include/asm-s390/div64.h b/include/asm-s390/div64.h
new file mode 100644
index 000000000000..af098dc3cf59
--- /dev/null
+++ b/include/asm-s390/div64.h
@@ -0,0 +1,49 @@
+#ifndef __S390_DIV64
+#define __S390_DIV64
+
+#ifndef __s390x__
+
+/* for do_div "base" needs to be smaller than 2^31-1 */
+#define do_div(n, base) ({                                      \
+        unsigned long long __n = (n);                           \
+        unsigned long __r;                                      \
+                                                                \
+        asm ("   slr  0,0\n"                                    \
+             "   l    1,%1\n"                                   \
+             "   srdl 0,1\n"                                    \
+             "   dr   0,%2\n"                                   \
+             "   alr  1,1\n"                                    \
+             "   alr  0,0\n"                                    \
+             "   lhi  2,1\n"                                    \
+             "   n    2,%1\n"                                   \
+             "   alr  0,2\n"                                    \
+             "   clr  0,%2\n"                                   \
+             "   jl   0f\n"                                     \
+             "   slr  0,%2\n"                                   \
+             "   ahi  1,1\n"                                    \
+             "0: st   1,%1\n"                                   \
+             "   l    1,4+%1\n"                                 \
+             "   srdl 0,1\n"                                    \
+             "   dr   0,%2\n"                                   \
+             "   alr  1,1\n"                                    \
+             "   alr  0,0\n"                                    \
+             "   lhi  2,1\n"                                    \
+             "   n    2,4+%1\n"                                 \
+             "   alr  0,2\n"                                    \
+             "   clr  0,%2\n"                                   \
+             "   jl   1f\n"                                     \
+             "   slr  0,%2\n"                                   \
+             "   ahi  1,1\n"                                    \
+             "1: st   1,4+%1\n"                                 \
+             "   lr   %0,0"                                     \
+             : "=d" (__r), "=m" (__n)                           \
+             : "d" (base), "m" (__n) : "0", "1", "2", "cc" );   \
+        (n) = (__n);                                            \
+        __r;                                                    \
+})
+
+#else /* __s390x__ */
+#include <asm-generic/div64.h>
+#endif /* __s390x__ */
+
+#endif
diff --git a/include/asm-s390/dma-mapping.h b/include/asm-s390/dma-mapping.h
new file mode 100644
index 000000000000..09bb7b04f967
--- /dev/null
+++ b/include/asm-s390/dma-mapping.h
@@ -0,0 +1,14 @@
+/*
+ *  include/asm-s390/dma-mapping.h
+ *
+ *  S390 version
+ *
+ *  This file exists so that #include <dma-mapping.h> doesn't break anything.
+ */
+
+#ifndef _ASM_DMA_MAPPING_H
+#define _ASM_DMA_MAPPING_H
+
+#include <asm-generic/dma-mapping-broken.h>
+
+#endif /* _ASM_DMA_MAPPING_H */
diff --git a/include/asm-s390/dma.h b/include/asm-s390/dma.h
new file mode 100644
index 000000000000..02720c449cd8
--- /dev/null
+++ b/include/asm-s390/dma.h
@@ -0,0 +1,16 @@
+/*
+ *  include/asm-s390/dma.h
+ *
+ *  S390 version
+ */
+
+#ifndef _ASM_DMA_H
+#define _ASM_DMA_H
+
+#include <asm/io.h>             /* need byte IO */
+
+#define MAX_DMA_ADDRESS         0x80000000
+
+#define free_dma(x)
+
+#endif /* _ASM_DMA_H */
diff --git a/include/asm-s390/ebcdic.h b/include/asm-s390/ebcdic.h
new file mode 100644
index 000000000000..20e81e885821
--- /dev/null
+++ b/include/asm-s390/ebcdic.h
@@ -0,0 +1,49 @@
+/*
+ *  include/asm-s390/ebcdic.h
+ *    EBCDIC -> ASCII, ASCII -> EBCDIC conversion routines.
+ *
+ *  S390 version
+ *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
+ */
+
+#ifndef _EBCDIC_H
+#define _EBCDIC_H
+
+#ifndef _S390_TYPES_H
+#include <types.h>
+#endif
+
+extern __u8 _ascebc_500[];   /* ASCII -> EBCDIC 500 conversion table */
+extern __u8 _ebcasc_500[];   /* EBCDIC 500 -> ASCII conversion table */
+extern __u8 _ascebc[];   /* ASCII -> EBCDIC conversion table */
+extern __u8 _ebcasc[];   /* EBCDIC -> ASCII conversion table */
+extern __u8 _ebc_tolower[]; /* EBCDIC -> lowercase */
+extern __u8 _ebc_toupper[]; /* EBCDIC -> uppercase */
+
+extern __inline__ void
+codepage_convert(const __u8 *codepage, volatile __u8 * addr, unsigned long nr)
+{
+        if (nr-- <= 0)
+                return;
+        __asm__ __volatile__(
+                "   bras 1,1f\n"
+                "   tr   0(1,%0),0(%2)\n"
+                "0: tr   0(256,%0),0(%2)\n"
+                "   la   %0,256(%0)\n"
+                "1: ahi  %1,-256\n"
+                "   jnm  0b\n"
+                "   ex   %1,0(1)"
+                : "+&a" (addr), "+&a" (nr)
+                : "a" (codepage) : "cc", "memory", "1" );
+}
+
+#define ASCEBC(addr,nr) codepage_convert(_ascebc, addr, nr)
+#define EBCASC(addr,nr) codepage_convert(_ebcasc, addr, nr)
+#define ASCEBC_500(addr,nr) codepage_convert(_ascebc_500, addr, nr)
+#define EBCASC_500(addr,nr) codepage_convert(_ebcasc_500, addr, nr)
+#define EBC_TOLOWER(addr,nr) codepage_convert(_ebc_tolower, addr, nr)
+#define EBC_TOUPPER(addr,nr) codepage_convert(_ebc_toupper, addr, nr)
+
+#endif
+
diff --git a/include/asm-s390/elf.h b/include/asm-s390/elf.h
new file mode 100644
index 000000000000..3b8bd46832a1
--- /dev/null
+++ b/include/asm-s390/elf.h
@@ -0,0 +1,215 @@
+/*
+ *  include/asm-s390/elf.h
+ *
+ *  S390 version
+ *
+ *  Derived from "include/asm-i386/elf.h"
+ */
+
+#ifndef __ASMS390_ELF_H
+#define __ASMS390_ELF_H
+
+/* s390 relocations defined by the ABIs */
+#define R_390_NONE              0       /* No reloc.  */
+#define R_390_8                 1       /* Direct 8 bit.  */
+#define R_390_12                2       /* Direct 12 bit.  */
+#define R_390_16                3       /* Direct 16 bit.  */
+#define R_390_32                4       /* Direct 32 bit.  */
+#define R_390_PC32              5       /* PC relative 32 bit.  */
+#define R_390_GOT12             6       /* 12 bit GOT offset.  */
+#define R_390_GOT32             7       /* 32 bit GOT offset.  */
+#define R_390_PLT32             8       /* 32 bit PC relative PLT address.  */
+#define R_390_COPY              9       /* Copy symbol at runtime.  */
+#define R_390_GLOB_DAT          10      /* Create GOT entry.  */
+#define R_390_JMP_SLOT          11      /* Create PLT entry.  */
+#define R_390_RELATIVE          12      /* Adjust by program base.  */
+#define R_390_GOTOFF32          13      /* 32 bit offset to GOT.         */
+#define R_390_GOTPC             14      /* 32 bit PC rel. offset to GOT.  */
+#define R_390_GOT16             15      /* 16 bit GOT offset.  */
+#define R_390_PC16              16      /* PC relative 16 bit.  */
+#define R_390_PC16DBL           17      /* PC relative 16 bit shifted by 1.  */
+#define R_390_PLT16DBL          18      /* 16 bit PC rel. PLT shifted by 1.  */
+#define R_390_PC32DBL           19      /* PC relative 32 bit shifted by 1.  */
+#define R_390_PLT32DBL          20      /* 32 bit PC rel. PLT shifted by 1.  */
+#define R_390_GOTPCDBL          21      /* 32 bit PC rel. GOT shifted by 1.  */
+#define R_390_64                22      /* Direct 64 bit.  */
+#define R_390_PC64              23      /* PC relative 64 bit.  */
+#define R_390_GOT64             24      /* 64 bit GOT offset.  */
+#define R_390_PLT64             25      /* 64 bit PC relative PLT address.  */
+#define R_390_GOTENT            26      /* 32 bit PC rel. to GOT entry >> 1. */
+#define R_390_GOTOFF16          27      /* 16 bit offset to GOT. */
+#define R_390_GOTOFF64          28      /* 64 bit offset to GOT. */
+#define R_390_GOTPLT12          29      /* 12 bit offset to jump slot.  */
+#define R_390_GOTPLT16          30      /* 16 bit offset to jump slot.  */
+#define R_390_GOTPLT32          31      /* 32 bit offset to jump slot.  */
+#define R_390_GOTPLT64          32      /* 64 bit offset to jump slot.  */
+#define R_390_GOTPLTENT         33      /* 32 bit rel. offset to jump slot.  */
+#define R_390_PLTOFF16          34      /* 16 bit offset from GOT to PLT. */
+#define R_390_PLTOFF32          35      /* 32 bit offset from GOT to PLT. */
+#define R_390_PLTOFF64          36      /* 16 bit offset from GOT to PLT. */
+#define R_390_TLS_LOAD          37      /* Tag for load insn in TLS code. */
+#define R_390_TLS_GDCALL        38      /* Tag for function call in general
+                                           dynamic TLS code.  */
+#define R_390_TLS_LDCALL        39      /* Tag for function call in local
+                                           dynamic TLS code.  */
+#define R_390_TLS_GD32          40      /* Direct 32 bit for general dynamic
+                                           thread local data.  */
+#define R_390_TLS_GD64          41      /* Direct 64 bit for general dynamic
+                                           thread local data.  */
+#define R_390_TLS_GOTIE12       42      /* 12 bit GOT offset for static TLS
+                                           block offset.  */
+#define R_390_TLS_GOTIE32       43      /* 32 bit GOT offset for static TLS
+                                           block offset.  */
+#define R_390_TLS_GOTIE64       44      /* 64 bit GOT offset for static TLS
+                                           block offset.  */
+#define R_390_TLS_LDM32         45      /* Direct 32 bit for local dynamic
+                                           thread local data in LD code.  */
+#define R_390_TLS_LDM64         46      /* Direct 64 bit for local dynamic
+                                           thread local data in LD code.  */
+#define R_390_TLS_IE32          47      /* 32 bit address of GOT entry for
+                                           negated static TLS block offset.  */
+#define R_390_TLS_IE64          48      /* 64 bit address of GOT entry for
+                                           negated static TLS block offset.  */
+#define R_390_TLS_IEENT         49      /* 32 bit rel. offset to GOT entry for
+                                           negated static TLS block offset.  */
+#define R_390_TLS_LE32          50      /* 32 bit negated offset relative to
+                                           static TLS block.  */
+#define R_390_TLS_LE64          51      /* 64 bit negated offset relative to
+                                           static TLS block.  */
+#define R_390_TLS_LDO32         52      /* 32 bit offset relative to TLS
+                                           block.  */
+#define R_390_TLS_LDO64         53      /* 64 bit offset relative to TLS
+                                           block.  */
+#define R_390_TLS_DTPMOD        54      /* ID of module containing symbol.  */
+#define R_390_TLS_DTPOFF        55      /* Offset in TLS block.  */
+#define R_390_TLS_TPOFF         56      /* Negate offset in static TLS
+                                           block.  */
+#define R_390_20                57      /* Direct 20 bit.  */
+#define R_390_GOT20             58      /* 20 bit GOT offset.  */
+#define R_390_GOTPLT20          59      /* 20 bit offset to jump slot.  */
+#define R_390_TLS_GOTIE20       60      /* 20 bit GOT offset for static TLS
+                                           block offset.  */
+/* Keep this the last entry.  */
+#define R_390_NUM       61
+
+/*
+ * ELF register definitions..
+ */
+
+#include <asm/ptrace.h>
+#include <asm/user.h>
+#include <asm/system.h>         /* for save_access_regs */
+
+
+typedef s390_fp_regs elf_fpregset_t;
+typedef s390_regs elf_gregset_t;
+
+/*
+ * These are used to set parameters in the core dumps.
+ */
+#ifndef __s390x__
+#define ELF_CLASS       ELFCLASS32
+#else /* __s390x__ */
+#define ELF_CLASS       ELFCLASS64
+#endif /* __s390x__ */
+#define ELF_DATA        ELFDATA2MSB
+#define ELF_ARCH        EM_S390
+
+/*
+ * This is used to ensure we don't load something for the wrong architecture.
+ */
+#define elf_check_arch(x) \
+        (((x)->e_machine == EM_S390 || (x)->e_machine == EM_S390_OLD) \
+         && (x)->e_ident[EI_CLASS] == ELF_CLASS) 
+
+/* For SVR4/S390 the function pointer to be registered with `atexit` is
+   passed in R14. */
+#define ELF_PLAT_INIT(_r, load_addr) \
+        do { \
+                _r->gprs[14] = 0; \
+        } while (0)
+
+#define USE_ELF_CORE_DUMP
+#define ELF_EXEC_PAGESIZE       4096
+
+/* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
+   use of this is to invoke "./ld.so someprog" to test out a new version of
+   the loader.  We need to make sure that it is out of the way of the program
+   that it will "exec", and that there is sufficient room for the brk.  */
+
+#ifndef __s390x__
+#define ELF_ET_DYN_BASE         ((TASK_SIZE & 0x80000000) \
+                                ? TASK_SIZE / 3 * 2 \
+                                : 2 * TASK_SIZE / 3)
+#else /* __s390x__ */
+#define ELF_ET_DYN_BASE         (TASK_SIZE / 3 * 2)
+#endif /* __s390x__ */
+
+/* Wow, the "main" arch needs arch dependent functions too.. :) */
+
+/* regs is struct pt_regs, pr_reg is elf_gregset_t (which is
+   now struct_user_regs, they are different) */
+
+static inline int dump_regs(struct pt_regs *ptregs, elf_gregset_t *regs)
+{
+        memcpy(&regs->psw, &ptregs->psw, sizeof(regs->psw)+sizeof(regs->gprs));
+        save_access_regs(regs->acrs);
+        regs->orig_gpr2 = ptregs->orig_gpr2;
+        return 1;
+}
+
+#define ELF_CORE_COPY_REGS(pr_reg, regs) dump_regs(regs, &pr_reg);
+
+static inline int dump_task_regs(struct task_struct *tsk, elf_gregset_t *regs)
+{
+        struct pt_regs *ptregs = __KSTK_PTREGS(tsk);
+        memcpy(&regs->psw, &ptregs->psw, sizeof(regs->psw)+sizeof(regs->gprs));
+        memcpy(regs->acrs, tsk->thread.acrs, sizeof(regs->acrs));
+        regs->orig_gpr2 = ptregs->orig_gpr2;
+        return 1;
+}
+
+#define ELF_CORE_COPY_TASK_REGS(tsk, regs) dump_task_regs(tsk, regs)
+
+static inline int dump_task_fpu(struct task_struct *tsk, elf_fpregset_t *fpregs)
+{
+        if (tsk == current)
+                save_fp_regs(fpregs);
+        else
+                memcpy(fpregs, &tsk->thread.fp_regs, sizeof(elf_fpregset_t));
+        return 1;
+}
+
+#define ELF_CORE_COPY_FPREGS(tsk, fpregs) dump_task_fpu(tsk, fpregs)
+
+
+/* This yields a mask that user programs can use to figure out what
+   instruction set this CPU supports. */
+
+#define ELF_HWCAP (0)
+
+/* This yields a string that ld.so will use to load implementation
+   specific libraries for optimization.  This is more specific in
+   intent than poking at uname or /proc/cpuinfo.
+
+   For the moment, we have only optimizations for the Intel generations,
+   but that could change... */
+
+#define ELF_PLATFORM (NULL)
+
+#ifdef __KERNEL__
+#ifndef __s390x__
+#define SET_PERSONALITY(ex, ibcs2) set_personality((ibcs2)?PER_SVR4:PER_LINUX)
+#else /* __s390x__ */
+#define SET_PERSONALITY(ex, ibcs2)                      \
+do {                                                    \
+        if (ibcs2)                                      \
+                set_personality(PER_SVR4);              \
+        else if (current->personality != PER_LINUX32)   \
+                set_personality(PER_LINUX);             \
+        clear_thread_flag(TIF_31BIT);                   \
+} while (0)
+#endif /* __s390x__ */
+#endif
+
+#endif
diff --git a/include/asm-s390/errno.h b/include/asm-s390/errno.h
new file mode 100644
index 000000000000..e41d5b37c4d6
--- /dev/null
+++ b/include/asm-s390/errno.h
@@ -0,0 +1,13 @@
+/*
+ *  include/asm-s390/errno.h
+ *
+ *  S390 version
+ *
+ */
+
+#ifndef _S390_ERRNO_H
+#define _S390_ERRNO_H
+
+#include <asm-generic/errno.h>
+
+#endif
diff --git a/include/asm-s390/extmem.h b/include/asm-s390/extmem.h
new file mode 100644
index 000000000000..c8802c934b74
--- /dev/null
+++ b/include/asm-s390/extmem.h
@@ -0,0 +1,32 @@
+/*
+ *  include/asm-s390x/extmem.h
+ *
+ *  definitions for external memory segment support
+ *  Copyright (C) 2003 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ */
+
+#ifndef _ASM_S390X_DCSS_H
+#define _ASM_S390X_DCSS_H
+#ifndef __ASSEMBLY__
+
+/* possible values for segment type as returned by segment_info */
+#define SEG_TYPE_SW 0
+#define SEG_TYPE_EW 1
+#define SEG_TYPE_SR 2
+#define SEG_TYPE_ER 3
+#define SEG_TYPE_SN 4
+#define SEG_TYPE_EN 5
+#define SEG_TYPE_SC 6
+#define SEG_TYPE_EWEN 7
+
+#define SEGMENT_SHARED 0
+#define SEGMENT_EXCLUSIVE 1
+
+extern int segment_load (char *name,int segtype,unsigned long *addr,unsigned long *length);
+extern void segment_unload(char *name);
+extern void segment_save(char *name);
+extern int segment_type (char* name);
+extern int segment_modify_shared (char *name, int do_nonshared);
+
+#endif
+#endif
diff --git a/include/asm-s390/fcntl.h b/include/asm-s390/fcntl.h
new file mode 100644
index 000000000000..48f692b45732
--- /dev/null
+++ b/include/asm-s390/fcntl.h
@@ -0,0 +1,97 @@
+/*
+ *  include/asm-s390/fcntl.h
+ *
+ *  S390 version
+ *
+ *  Derived from "include/asm-i386/fcntl.h"
+ */
+#ifndef _S390_FCNTL_H
+#define _S390_FCNTL_H
+
+/* open/fcntl - O_SYNC is only implemented on blocks devices and on files
+   located on an ext2 file system */
+#define O_ACCMODE          0003
+#define O_RDONLY             00
+#define O_WRONLY             01
+#define O_RDWR               02
+#define O_CREAT            0100 /* not fcntl */
+#define O_EXCL             0200 /* not fcntl */
+#define O_NOCTTY           0400 /* not fcntl */
+#define O_TRUNC           01000 /* not fcntl */
+#define O_APPEND          02000
+#define O_NONBLOCK        04000
+#define O_NDELAY        O_NONBLOCK
+#define O_SYNC           010000
+#define FASYNC           020000 /* fcntl, for BSD compatibility */
+#define O_DIRECT         040000 /* direct disk access hint */
+#define O_LARGEFILE     0100000
+#define O_DIRECTORY     0200000 /* must be a directory */
+#define O_NOFOLLOW      0400000 /* don't follow links */
+#define O_NOATIME       01000000
+
+#define F_DUPFD         0       /* dup */
+#define F_GETFD         1       /* get close_on_exec */
+#define F_SETFD         2       /* set/clear close_on_exec */
+#define F_GETFL         3       /* get file->f_flags */
+#define F_SETFL         4       /* set file->f_flags */
+#define F_GETLK         5
+#define F_SETLK         6
+#define F_SETLKW        7
+
+#define F_SETOWN        8       /*  for sockets. */
+#define F_GETOWN        9       /*  for sockets. */
+#define F_SETSIG        10      /*  for sockets. */
+#define F_GETSIG        11      /*  for sockets. */
+
+#ifndef __s390x__
+#define F_GETLK64       12      /*  using 'struct flock64' */
+#define F_SETLK64       13
+#define F_SETLKW64      14
+#endif /* ! __s390x__ */
+
+/* for F_[GET|SET]FL */
+#define FD_CLOEXEC      1       /* actually anything with low bit set goes */
+
+/* for posix fcntl() and lockf() */
+#define F_RDLCK         0
+#define F_WRLCK         1
+#define F_UNLCK         2
+
+/* for old implementation of bsd flock () */
+#define F_EXLCK         4       /* or 3 */
+#define F_SHLCK         8       /* or 4 */
+
+/* for leases */
+#define F_INPROGRESS    16
+
+/* operations for bsd flock(), also used by the kernel implementation */
+#define LOCK_SH         1       /* shared lock */
+#define LOCK_EX         2       /* exclusive lock */
+#define LOCK_NB         4       /* or'd with one of the above to prevent
+                                   blocking */
+#define LOCK_UN         8       /* remove lock */
+
+#define LOCK_MAND       32      /* This is a mandatory flock */
+#define LOCK_READ       64      /* ... Which allows concurrent read operations */
+#define LOCK_WRITE      128     /* ... Which allows concurrent write operations */
+#define LOCK_RW         192     /* ... Which allows concurrent read & write ops */
+
+struct flock {
+        short l_type;
+        short l_whence;
+        off_t l_start;
+        off_t l_len;
+        pid_t l_pid;
+};
+
+#ifndef __s390x__
+struct flock64 {
+        short  l_type;
+        short  l_whence;
+        loff_t l_start;
+        loff_t l_len;
+        pid_t  l_pid;
+};
+#endif
+#define F_LINUX_SPECIFIC_BASE   1024
+#endif
diff --git a/include/asm-s390/hardirq.h b/include/asm-s390/hardirq.h
new file mode 100644
index 000000000000..6792c559a124
--- /dev/null
+++ b/include/asm-s390/hardirq.h
@@ -0,0 +1,38 @@
+/*
+ *  include/asm-s390/hardirq.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999,2000 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com),
+ *               Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com)
+ *
+ *  Derived from "include/asm-i386/hardirq.h"
+ */
+
+#ifndef __ASM_HARDIRQ_H
+#define __ASM_HARDIRQ_H
+
+#include <linux/config.h>
+#include <linux/threads.h>
+#include <linux/sched.h>
+#include <linux/cache.h>
+#include <linux/interrupt.h>
+#include <asm/lowcore.h>
+
+/* irq_cpustat_t is unused currently, but could be converted
+ * into a percpu variable instead of storing softirq_pending
+ * on the lowcore */
+typedef struct {
+        unsigned int __softirq_pending;
+} irq_cpustat_t;
+
+#define local_softirq_pending() (S390_lowcore.softirq_pending)
+
+#define __ARCH_IRQ_STAT
+#define __ARCH_HAS_DO_SOFTIRQ
+
+#define HARDIRQ_BITS    8
+
+extern void account_ticks(struct pt_regs *);
+
+#endif /* __ASM_HARDIRQ_H */
diff --git a/include/asm-s390/idals.h b/include/asm-s390/idals.h
new file mode 100644
index 000000000000..8038858b86bb
--- /dev/null
+++ b/include/asm-s390/idals.h
@@ -0,0 +1,257 @@
+/* 
+ * File...........: linux/include/asm-s390x/idals.h
+ * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com>
+ *                  Martin Schwidefsky <schwidefsky@de.ibm.com>
+ * Bugreports.to..: <Linux390@de.ibm.com>
+ * (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 2000a
+ 
+ * History of changes
+ * 07/24/00 new file
+ * 05/04/02 code restructuring.
+ */
+
+#ifndef _S390_IDALS_H
+#define _S390_IDALS_H
+
+#include <linux/config.h>
+#include <linux/errno.h>
+#include <linux/err.h>
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <asm/cio.h>
+#include <asm/uaccess.h>
+
+#ifdef __s390x__
+#define IDA_SIZE_LOG 12 /* 11 for 2k , 12 for 4k */
+#else
+#define IDA_SIZE_LOG 11 /* 11 for 2k , 12 for 4k */
+#endif
+#define IDA_BLOCK_SIZE (1L<<IDA_SIZE_LOG)
+
+/*
+ * Test if an address/length pair needs an idal list.
+ */
+static inline int
+idal_is_needed(void *vaddr, unsigned int length)
+{
+#ifdef __s390x__
+        return ((__pa(vaddr) + length - 1) >> 31) != 0;
+#else
+        return 0;
+#endif
+}
+
+
+/*
+ * Return the number of idal words needed for an address/length pair.
+ */
+static inline unsigned int
+idal_nr_words(void *vaddr, unsigned int length)
+{
+#ifdef __s390x__
+        if (idal_is_needed(vaddr, length))
+                return ((__pa(vaddr) & (IDA_BLOCK_SIZE-1)) + length + 
+                        (IDA_BLOCK_SIZE-1)) >> IDA_SIZE_LOG;
+#endif
+        return 0;
+}
+
+/*
+ * Create the list of idal words for an address/length pair.
+ */
+static inline unsigned long *
+idal_create_words(unsigned long *idaws, void *vaddr, unsigned int length)
+{
+#ifdef __s390x__
+        unsigned long paddr;
+        unsigned int cidaw;
+
+        paddr = __pa(vaddr);
+        cidaw = ((paddr & (IDA_BLOCK_SIZE-1)) + length + 
+                 (IDA_BLOCK_SIZE-1)) >> IDA_SIZE_LOG;
+        *idaws++ = paddr;
+        paddr &= -IDA_BLOCK_SIZE;
+        while (--cidaw > 0) {
+                paddr += IDA_BLOCK_SIZE;
+                *idaws++ = paddr;
+        }
+#endif
+        return idaws;
+}
+
+/*
+ * Sets the address of the data in CCW.
+ * If necessary it allocates an IDAL and sets the appropriate flags.
+ */
+static inline int
+set_normalized_cda(struct ccw1 * ccw, void *vaddr)
+{
+#ifdef __s390x__
+        unsigned int nridaws;
+        unsigned long *idal;
+
+        if (ccw->flags & CCW_FLAG_IDA)
+                return -EINVAL;
+        nridaws = idal_nr_words(vaddr, ccw->count);
+        if (nridaws > 0) {
+                idal = kmalloc(nridaws * sizeof(unsigned long),
+                               GFP_ATOMIC | GFP_DMA );
+                if (idal == NULL)
+                        return -ENOMEM;
+                idal_create_words(idal, vaddr, ccw->count);
+                ccw->flags |= CCW_FLAG_IDA;
+                vaddr = idal;
+        }
+#endif
+        ccw->cda = (__u32)(unsigned long) vaddr;
+        return 0;
+}
+
+/*
+ * Releases any allocated IDAL related to the CCW.
+ */
+static inline void
+clear_normalized_cda(struct ccw1 * ccw)
+{
+#ifdef __s390x__
+        if (ccw->flags & CCW_FLAG_IDA) {
+                kfree((void *)(unsigned long) ccw->cda);
+                ccw->flags &= ~CCW_FLAG_IDA;
+        }
+#endif
+        ccw->cda = 0;
+}
+
+/*
+ * Idal buffer extension
+ */
+struct idal_buffer {
+        size_t size;
+        size_t page_order;
+        void *data[0];
+};
+
+/*
+ * Allocate an idal buffer
+ */
+static inline struct idal_buffer *
+idal_buffer_alloc(size_t size, int page_order)
+{
+        struct idal_buffer *ib;
+        int nr_chunks, nr_ptrs, i;
+
+        nr_ptrs = (size + IDA_BLOCK_SIZE - 1) >> IDA_SIZE_LOG;
+        nr_chunks = (4096 << page_order) >> IDA_SIZE_LOG;
+        ib = kmalloc(sizeof(struct idal_buffer) + nr_ptrs*sizeof(void *),
+                     GFP_DMA | GFP_KERNEL);
+        if (ib == NULL)
+                return ERR_PTR(-ENOMEM);
+        ib->size = size;
+        ib->page_order = page_order;
+        for (i = 0; i < nr_ptrs; i++) {
+                if ((i & (nr_chunks - 1)) != 0) {
+                        ib->data[i] = ib->data[i-1] + IDA_BLOCK_SIZE;
+                        continue;
+                }
+                ib->data[i] = (void *)
+                        __get_free_pages(GFP_KERNEL, page_order);
+                if (ib->data[i] != NULL)
+                        continue;
+                // Not enough memory
+                while (i >= nr_chunks) {
+                        i -= nr_chunks;
+                        free_pages((unsigned long) ib->data[i],
+                                   ib->page_order);
+                }
+                kfree(ib);
+                return ERR_PTR(-ENOMEM);
+        }
+        return ib;
+}
+
+/*
+ * Free an idal buffer.
+ */
+static inline void
+idal_buffer_free(struct idal_buffer *ib)
+{
+        int nr_chunks, nr_ptrs, i;
+
+        nr_ptrs = (ib->size + IDA_BLOCK_SIZE - 1) >> IDA_SIZE_LOG;
+        nr_chunks = (4096 << ib->page_order) >> IDA_SIZE_LOG;
+        for (i = 0; i < nr_ptrs; i += nr_chunks)
+                free_pages((unsigned long) ib->data[i], ib->page_order);
+        kfree(ib);
+}
+
+/*
+ * Test if a idal list is really needed.
+ */
+static inline int
+__idal_buffer_is_needed(struct idal_buffer *ib)
+{
+#ifdef __s390x__
+        return ib->size > (4096ul << ib->page_order) ||
+                idal_is_needed(ib->data[0], ib->size);
+#else
+        return ib->size > (4096ul << ib->page_order);
+#endif
+}
+
+/*
+ * Set channel data address to idal buffer.
+ */
+static inline void
+idal_buffer_set_cda(struct idal_buffer *ib, struct ccw1 *ccw)
+{
+        if (__idal_buffer_is_needed(ib)) {
+                // setup idals;
+                ccw->cda = (u32)(addr_t) ib->data;
+                ccw->flags |= CCW_FLAG_IDA;
+        } else
+                // we do not need idals - use direct addressing
+                ccw->cda = (u32)(addr_t) ib->data[0];
+        ccw->count = ib->size;
+}
+
+/*
+ * Copy count bytes from an idal buffer to user memory
+ */
+static inline size_t
+idal_buffer_to_user(struct idal_buffer *ib, void __user *to, size_t count)
+{
+        size_t left;
+        int i;
+
+        BUG_ON(count > ib->size);
+        for (i = 0; count > IDA_BLOCK_SIZE; i++) {
+                left = copy_to_user(to, ib->data[i], IDA_BLOCK_SIZE);
+                if (left)
+                        return left + count - IDA_BLOCK_SIZE;
+                to = (void __user *) to + IDA_BLOCK_SIZE;
+                count -= IDA_BLOCK_SIZE;
+        }
+        return copy_to_user(to, ib->data[i], count);
+}
+
+/*
+ * Copy count bytes from user memory to an idal buffer
+ */
+static inline size_t
+idal_buffer_from_user(struct idal_buffer *ib, const void __user *from, size_t count)
+{
+        size_t left;
+        int i;
+
+        BUG_ON(count > ib->size);
+        for (i = 0; count > IDA_BLOCK_SIZE; i++) {
+                left = copy_from_user(ib->data[i], from, IDA_BLOCK_SIZE);
+                if (left)
+                        return left + count - IDA_BLOCK_SIZE;
+                from = (void __user *) from + IDA_BLOCK_SIZE;
+                count -= IDA_BLOCK_SIZE;
+        }
+        return copy_from_user(ib->data[i], from, count);
+}
+
+#endif
diff --git a/include/asm-s390/io.h b/include/asm-s390/io.h
new file mode 100644
index 000000000000..8188fdc9884f
--- /dev/null
+++ b/include/asm-s390/io.h
@@ -0,0 +1,123 @@
+/*
+ *  include/asm-s390/io.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
+ *
+ *  Derived from "include/asm-i386/io.h"
+ */
+
+#ifndef _S390_IO_H
+#define _S390_IO_H
+
+#ifdef __KERNEL__
+
+#include <linux/vmalloc.h>
+#include <asm/page.h>
+
+#define IO_SPACE_LIMIT 0xffffffff
+
+#define __io_virt(x)            ((void *)(PAGE_OFFSET | (unsigned long)(x)))
+
+/*
+ * Change virtual addresses to physical addresses and vv.
+ * These are pretty trivial
+ */
+extern inline unsigned long virt_to_phys(volatile void * address)
+{
+        unsigned long real_address;
+        __asm__ (
+#ifndef __s390x__
+                 "   lra    %0,0(%1)\n"
+                 "   jz     0f\n"
+                 "   sr     %0,%0\n"
+#else /* __s390x__ */
+                 "   lrag   %0,0(%1)\n"
+                 "   jz     0f\n"
+                 "   slgr   %0,%0\n"
+#endif /* __s390x__ */
+                 "0:"
+                 : "=a" (real_address) : "a" (address) : "cc" );
+        return real_address;
+}
+
+extern inline void * phys_to_virt(unsigned long address)
+{
+        return __io_virt(address);
+}
+
+/*
+ * Change "struct page" to physical address.
+ */
+#define page_to_phys(page)      ((page - mem_map) << PAGE_SHIFT)
+
+extern void * __ioremap(unsigned long offset, unsigned long size, unsigned long flags);
+
+extern inline void * ioremap (unsigned long offset, unsigned long size)
+{
+        return __ioremap(offset, size, 0);
+}
+
+/*
+ * This one maps high address device memory and turns off caching for that area.
+ * it's useful if some control registers are in such an area and write combining
+ * or read caching is not desirable:
+ */
+extern inline void * ioremap_nocache (unsigned long offset, unsigned long size)
+{
+        return __ioremap(offset, size, 0);
+}
+
+extern void iounmap(void *addr);
+
+/*
+ * IO bus memory addresses are also 1:1 with the physical address
+ */
+#define virt_to_bus virt_to_phys
+#define bus_to_virt phys_to_virt
+
+/*
+ * readX/writeX() are used to access memory mapped devices. On some
+ * architectures the memory mapped IO stuff needs to be accessed
+ * differently.
+ */
+
+#define readb(addr) (*(volatile unsigned char *) __io_virt(addr))
+#define readw(addr) (*(volatile unsigned short *) __io_virt(addr))
+#define readl(addr) (*(volatile unsigned int *) __io_virt(addr))
+
+#define readb_relaxed(addr) readb(addr)
+#define readw_relaxed(addr) readw(addr)
+#define readl_relaxed(addr) readl(addr)
+
+#define writeb(b,addr) (*(volatile unsigned char *) __io_virt(addr) = (b))
+#define writew(b,addr) (*(volatile unsigned short *) __io_virt(addr) = (b))
+#define writel(b,addr) (*(volatile unsigned int *) __io_virt(addr) = (b))
+
+#define memset_io(a,b,c)        memset(__io_virt(a),(b),(c))
+#define memcpy_fromio(a,b,c)    memcpy((a),__io_virt(b),(c))
+#define memcpy_toio(a,b,c)      memcpy(__io_virt(a),(b),(c))
+
+#define inb_p(addr) readb(addr)
+#define inb(addr) readb(addr)
+
+#define outb(x,addr) ((void) writeb(x,addr))
+#define outb_p(x,addr) outb(x,addr)
+
+#define mmiowb()
+
+/*
+ * Convert a physical pointer to a virtual kernel pointer for /dev/mem
+ * access
+ */
+#define xlate_dev_mem_ptr(p)    __va(p)
+
+/*
+ * Convert a virtual cached pointer to an uncached pointer
+ */
+#define xlate_dev_kmem_ptr(p)   p
+
+#endif /* __KERNEL__ */
+
+#endif
diff --git a/include/asm-s390/ioctl.h b/include/asm-s390/ioctl.h
new file mode 100644
index 000000000000..df7394345ac4
--- /dev/null
+++ b/include/asm-s390/ioctl.h
@@ -0,0 +1,88 @@
+/*
+ *  include/asm-s390/ioctl.h
+ *
+ *  S390 version
+ *
+ *  Derived from "include/asm-i386/ioctl.h"
+ */
+
+#ifndef _S390_IOCTL_H
+#define _S390_IOCTL_H
+
+/* ioctl command encoding: 32 bits total, command in lower 16 bits,
+ * size of the parameter structure in the lower 14 bits of the
+ * upper 16 bits.
+ * Encoding the size of the parameter structure in the ioctl request
+ * is useful for catching programs compiled with old versions
+ * and to avoid overwriting user space outside the user buffer area.
+ * The highest 2 bits are reserved for indicating the ``access mode''.
+ * NOTE: This limits the max parameter size to 16kB -1 !
+ */
+
+/*
+ * The following is for compatibility across the various Linux
+ * platforms.  The i386 ioctl numbering scheme doesn't really enforce
+ * a type field.  De facto, however, the top 8 bits of the lower 16
+ * bits are indeed used as a type field, so we might just as well make
+ * this explicit here.  Please be sure to use the decoding macros
+ * below from now on.
+ */
+#define _IOC_NRBITS     8
+#define _IOC_TYPEBITS   8
+#define _IOC_SIZEBITS   14
+#define _IOC_DIRBITS    2
+
+#define _IOC_NRMASK     ((1 << _IOC_NRBITS)-1)
+#define _IOC_TYPEMASK   ((1 << _IOC_TYPEBITS)-1)
+#define _IOC_SIZEMASK   ((1 << _IOC_SIZEBITS)-1)
+#define _IOC_DIRMASK    ((1 << _IOC_DIRBITS)-1)
+
+#define _IOC_NRSHIFT    0
+#define _IOC_TYPESHIFT  (_IOC_NRSHIFT+_IOC_NRBITS)
+#define _IOC_SIZESHIFT  (_IOC_TYPESHIFT+_IOC_TYPEBITS)
+#define _IOC_DIRSHIFT   (_IOC_SIZESHIFT+_IOC_SIZEBITS)
+
+/*
+ * Direction bits.
+ */
+#define _IOC_NONE       0U
+#define _IOC_WRITE      1U
+#define _IOC_READ       2U
+
+#define _IOC(dir,type,nr,size) \
+        (((dir)  << _IOC_DIRSHIFT) | \
+         ((type) << _IOC_TYPESHIFT) | \
+         ((nr)   << _IOC_NRSHIFT) | \
+         ((size) << _IOC_SIZESHIFT))
+
+/* provoke compile error for invalid uses of size argument */
+extern unsigned long __invalid_size_argument_for_IOC;
+#define _IOC_TYPECHECK(t) \
+        ((sizeof(t) == sizeof(t[1]) && \
+          sizeof(t) < (1 << _IOC_SIZEBITS)) ? \
+          sizeof(t) : __invalid_size_argument_for_IOC)
+
+/* used to create numbers */
+#define _IO(type,nr)            _IOC(_IOC_NONE,(type),(nr),0)
+#define _IOR(type,nr,size)      _IOC(_IOC_READ,(type),(nr),(_IOC_TYPECHECK(size)))
+#define _IOW(type,nr,size)      _IOC(_IOC_WRITE,(type),(nr),(_IOC_TYPECHECK(size)))
+#define _IOWR(type,nr,size)     _IOC(_IOC_READ|_IOC_WRITE,(type),(nr),(_IOC_TYPECHECK(size)))
+#define _IOR_BAD(type,nr,size)  _IOC(_IOC_READ,(type),(nr),sizeof(size))
+#define _IOW_BAD(type,nr,size)  _IOC(_IOC_WRITE,(type),(nr),sizeof(size))
+#define _IOWR_BAD(type,nr,size) _IOC(_IOC_READ|_IOC_WRITE,(type),(nr),sizeof(size))
+
+/* used to decode ioctl numbers.. */
+#define _IOC_DIR(nr)            (((nr) >> _IOC_DIRSHIFT) & _IOC_DIRMASK)
+#define _IOC_TYPE(nr)           (((nr) >> _IOC_TYPESHIFT) & _IOC_TYPEMASK)
+#define _IOC_NR(nr)             (((nr) >> _IOC_NRSHIFT) & _IOC_NRMASK)
+#define _IOC_SIZE(nr)           (((nr) >> _IOC_SIZESHIFT) & _IOC_SIZEMASK)
+
+/* ...and for the drivers/sound files... */
+
+#define IOC_IN          (_IOC_WRITE << _IOC_DIRSHIFT)
+#define IOC_OUT         (_IOC_READ << _IOC_DIRSHIFT)
+#define IOC_INOUT       ((_IOC_WRITE|_IOC_READ) << _IOC_DIRSHIFT)
+#define IOCSIZE_MASK    (_IOC_SIZEMASK << _IOC_SIZESHIFT)
+#define IOCSIZE_SHIFT   (_IOC_SIZESHIFT)
+
+#endif /* _S390_IOCTL_H */
diff --git a/include/asm-s390/ioctls.h b/include/asm-s390/ioctls.h
new file mode 100644
index 000000000000..07e19b2dd73f
--- /dev/null
+++ b/include/asm-s390/ioctls.h
@@ -0,0 +1,88 @@
+/*
+ *  include/asm-s390/ioctls.h
+ *
+ *  S390 version
+ *
+ *  Derived from "include/asm-i386/ioctls.h"
+ */
+
+#ifndef __ARCH_S390_IOCTLS_H__
+#define __ARCH_S390_IOCTLS_H__
+
+#include <asm/ioctl.h>
+
+/* 0x54 is just a magic number to make these relatively unique ('T') */
+
+#define TCGETS          0x5401
+#define TCSETS          0x5402
+#define TCSETSW         0x5403
+#define TCSETSF         0x5404
+#define TCGETA          0x5405
+#define TCSETA          0x5406
+#define TCSETAW         0x5407
+#define TCSETAF         0x5408
+#define TCSBRK          0x5409
+#define TCXONC          0x540A
+#define TCFLSH          0x540B
+#define TIOCEXCL        0x540C
+#define TIOCNXCL        0x540D
+#define TIOCSCTTY       0x540E
+#define TIOCGPGRP       0x540F
+#define TIOCSPGRP       0x5410
+#define TIOCOUTQ        0x5411
+#define TIOCSTI         0x5412
+#define TIOCGWINSZ      0x5413
+#define TIOCSWINSZ      0x5414
+#define TIOCMGET        0x5415
+#define TIOCMBIS        0x5416
+#define TIOCMBIC        0x5417
+#define TIOCMSET        0x5418
+#define TIOCGSOFTCAR    0x5419
+#define TIOCSSOFTCAR    0x541A
+#define FIONREAD        0x541B
+#define TIOCINQ         FIONREAD
+#define TIOCLINUX       0x541C
+#define TIOCCONS        0x541D
+#define TIOCGSERIAL     0x541E
+#define TIOCSSERIAL     0x541F
+#define TIOCPKT         0x5420
+#define FIONBIO         0x5421
+#define TIOCNOTTY       0x5422
+#define TIOCSETD        0x5423
+#define TIOCGETD        0x5424
+#define TCSBRKP         0x5425  /* Needed for POSIX tcsendbreak() */
+#define TIOCSBRK        0x5427  /* BSD compatibility */
+#define TIOCCBRK        0x5428  /* BSD compatibility */
+#define TIOCGSID        0x5429  /* Return the session ID of FD */
+#define TIOCGPTN        _IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
+#define TIOCSPTLCK      _IOW('T',0x31, int)  /* Lock/unlock Pty */
+
+#define FIONCLEX        0x5450  /* these numbers need to be adjusted. */
+#define FIOCLEX         0x5451
+#define FIOASYNC        0x5452
+#define TIOCSERCONFIG   0x5453
+#define TIOCSERGWILD    0x5454
+#define TIOCSERSWILD    0x5455
+#define TIOCGLCKTRMIOS  0x5456
+#define TIOCSLCKTRMIOS  0x5457
+#define TIOCSERGSTRUCT  0x5458 /* For debugging only */
+#define TIOCSERGETLSR   0x5459 /* Get line status register */
+#define TIOCSERGETMULTI 0x545A /* Get multiport config  */
+#define TIOCSERSETMULTI 0x545B /* Set multiport config */
+
+#define TIOCMIWAIT      0x545C  /* wait for a change on serial input line(s) */
+#define TIOCGICOUNT     0x545D  /* read serial port inline interrupt counts */
+#define FIOQSIZE        0x545E
+
+/* Used for packet mode */
+#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 TIOCSER_TEMT    0x01    /* Transmitter physically empty */
+
+#endif
diff --git a/include/asm-s390/ipc.h b/include/asm-s390/ipc.h
new file mode 100644
index 000000000000..a46e3d9c2a3f
--- /dev/null
+++ b/include/asm-s390/ipc.h
@@ -0,0 +1 @@
+#include <asm-generic/ipc.h>
diff --git a/include/asm-s390/ipcbuf.h b/include/asm-s390/ipcbuf.h
new file mode 100644
index 000000000000..37f293d12c8f
--- /dev/null
+++ b/include/asm-s390/ipcbuf.h
@@ -0,0 +1,31 @@
+#ifndef __S390_IPCBUF_H__
+#define __S390_IPCBUF_H__
+
+/*
+ * The user_ipc_perm structure for S/390 architecture.
+ * Note extra padding because this structure is passed back and forth
+ * between kernel and user space.
+ *
+ * Pad space is left for:
+ * - 32-bit mode_t and seq
+ * - 2 miscellaneous 32-bit values
+ */
+
+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 short          __pad1;
+        unsigned short          seq;
+#ifndef __s390x__
+        unsigned short          __pad2;
+#endif /* ! __s390x__ */
+        unsigned long           __unused1;
+        unsigned long           __unused2;
+};
+
+#endif /* __S390_IPCBUF_H__ */
diff --git a/include/asm-s390/irq.h b/include/asm-s390/irq.h
new file mode 100644
index 000000000000..916a1aa0b073
--- /dev/null
+++ b/include/asm-s390/irq.h
@@ -0,0 +1,30 @@
+#ifndef _ASM_IRQ_H
+#define _ASM_IRQ_H
+
+#ifdef __KERNEL__
+#include <linux/hardirq.h>
+
+/*
+ * the definition of irqs has changed in 2.5.46:
+ * NR_IRQS is no longer the number of i/o
+ * interrupts (65536), but rather the number
+ * of interrupt classes (2).
+ * Only external and i/o interrupts make much sense here (CH).
+ */
+
+enum interruption_class {
+        EXTERNAL_INTERRUPT,
+        IO_INTERRUPT,
+
+        NR_IRQS,
+};
+
+#define touch_nmi_watchdog() do { } while(0)
+
+struct irqaction;
+struct pt_regs;
+int handle_IRQ_event(unsigned int, struct pt_regs *, struct irqaction *);
+
+#endif /* __KERNEL__ */
+#endif
+
diff --git a/include/asm-s390/kmap_types.h b/include/asm-s390/kmap_types.h
new file mode 100644
index 000000000000..fd1574648223
--- /dev/null
+++ b/include/asm-s390/kmap_types.h
@@ -0,0 +1,23 @@
+#ifdef __KERNEL__
+#ifndef _ASM_KMAP_TYPES_H
+#define _ASM_KMAP_TYPES_H
+
+enum km_type {
+        KM_BOUNCE_READ,
+        KM_SKB_SUNRPC_DATA,
+        KM_SKB_DATA_SOFTIRQ,
+        KM_USER0,
+        KM_USER1,
+        KM_BIO_SRC_IRQ,
+        KM_BIO_DST_IRQ,
+        KM_PTE0,
+        KM_PTE1,
+        KM_IRQ0,
+        KM_IRQ1,
+        KM_SOFTIRQ0,
+        KM_SOFTIRQ1,    
+        KM_TYPE_NR
+};
+
+#endif
+#endif /* __KERNEL__ */
diff --git a/include/asm-s390/linkage.h b/include/asm-s390/linkage.h
new file mode 100644
index 000000000000..291c2d01c44f
--- /dev/null
+++ b/include/asm-s390/linkage.h
@@ -0,0 +1,6 @@
+#ifndef __ASM_LINKAGE_H
+#define __ASM_LINKAGE_H
+
+/* Nothing to see here... */
+
+#endif
diff --git a/include/asm-s390/local.h b/include/asm-s390/local.h
new file mode 100644
index 000000000000..cf8189009c30
--- /dev/null
+++ b/include/asm-s390/local.h
@@ -0,0 +1,59 @@
+#ifndef _ASM_LOCAL_H
+#define _ASM_LOCAL_H
+
+#include <linux/config.h>
+#include <linux/percpu.h>
+#include <asm/atomic.h>
+
+#ifndef __s390x__
+
+typedef atomic_t local_t;
+
+#define LOCAL_INIT(i)   ATOMIC_INIT(i)
+#define local_read(v)   atomic_read(v)
+#define local_set(v,i)  atomic_set(v,i)
+
+#define local_inc(v)    atomic_inc(v)
+#define local_dec(v)    atomic_dec(v)
+#define local_add(i, v) atomic_add(i, v)
+#define local_sub(i, v) atomic_sub(i, v)
+
+#else
+
+typedef atomic64_t local_t;
+
+#define LOCAL_INIT(i)   ATOMIC64_INIT(i)
+#define local_read(v)   atomic64_read(v)
+#define local_set(v,i)  atomic64_set(v,i)
+
+#define local_inc(v)    atomic64_inc(v)
+#define local_dec(v)    atomic64_dec(v)
+#define local_add(i, v) atomic64_add(i, v)
+#define local_sub(i, v) atomic64_sub(i, v)
+
+#endif
+
+#define __local_inc(v)          ((v)->counter++)
+#define __local_dec(v)          ((v)->counter--)
+#define __local_add(i,v)        ((v)->counter+=(i))
+#define __local_sub(i,v)        ((v)->counter-=(i))
+
+/*
+ * Use these for per-cpu local_t variables: on some archs they are
+ * much more efficient than these naive implementations.  Note they take
+ * a variable, not an address.
+ */
+#define cpu_local_read(v)       local_read(&__get_cpu_var(v))
+#define cpu_local_set(v, i)     local_set(&__get_cpu_var(v), (i))
+
+#define cpu_local_inc(v)        local_inc(&__get_cpu_var(v))
+#define cpu_local_dec(v)        local_dec(&__get_cpu_var(v))
+#define cpu_local_add(i, v)     local_add((i), &__get_cpu_var(v))
+#define cpu_local_sub(i, v)     local_sub((i), &__get_cpu_var(v))
+
+#define __cpu_local_inc(v)      __local_inc(&__get_cpu_var(v))
+#define __cpu_local_dec(v)      __local_dec(&__get_cpu_var(v))
+#define __cpu_local_add(i, v)   __local_add((i), &__get_cpu_var(v))
+#define __cpu_local_sub(i, v)   __local_sub((i), &__get_cpu_var(v))
+
+#endif /* _ASM_LOCAL_H */
diff --git a/include/asm-s390/lowcore.h b/include/asm-s390/lowcore.h
new file mode 100644
index 000000000000..df5172fc589d
--- /dev/null
+++ b/include/asm-s390/lowcore.h
@@ -0,0 +1,351 @@
+/*
+ *  include/asm-s390/lowcore.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999,2000 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Hartmut Penner (hp@de.ibm.com),
+ *               Martin Schwidefsky (schwidefsky@de.ibm.com),
+ *               Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com)
+ */
+
+#ifndef _ASM_S390_LOWCORE_H
+#define _ASM_S390_LOWCORE_H
+
+#ifndef __s390x__
+#define __LC_EXT_OLD_PSW                0x018
+#define __LC_SVC_OLD_PSW                0x020
+#define __LC_PGM_OLD_PSW                0x028
+#define __LC_MCK_OLD_PSW                0x030
+#define __LC_IO_OLD_PSW                 0x038
+#define __LC_EXT_NEW_PSW                0x058
+#define __LC_SVC_NEW_PSW                0x060
+#define __LC_PGM_NEW_PSW                0x068
+#define __LC_MCK_NEW_PSW                0x070
+#define __LC_IO_NEW_PSW                 0x078
+#else /* !__s390x__ */
+#define __LC_EXT_OLD_PSW                0x0130
+#define __LC_SVC_OLD_PSW                0x0140
+#define __LC_PGM_OLD_PSW                0x0150
+#define __LC_MCK_OLD_PSW                0x0160
+#define __LC_IO_OLD_PSW                 0x0170
+#define __LC_EXT_NEW_PSW                0x01b0
+#define __LC_SVC_NEW_PSW                0x01c0
+#define __LC_PGM_NEW_PSW                0x01d0
+#define __LC_MCK_NEW_PSW                0x01e0
+#define __LC_IO_NEW_PSW                 0x01f0
+#endif /* !__s390x__ */
+
+#define __LC_EXT_PARAMS                 0x080
+#define __LC_CPU_ADDRESS                0x084
+#define __LC_EXT_INT_CODE               0x086
+
+#define __LC_SVC_ILC                    0x088
+#define __LC_SVC_INT_CODE               0x08A
+#define __LC_PGM_ILC                    0x08C
+#define __LC_PGM_INT_CODE               0x08E
+
+#define __LC_PER_ATMID                  0x096
+#define __LC_PER_ADDRESS                0x098
+#define __LC_PER_ACCESS_ID              0x0A1
+
+#define __LC_SUBCHANNEL_ID              0x0B8
+#define __LC_SUBCHANNEL_NR              0x0BA
+#define __LC_IO_INT_PARM                0x0BC
+#define __LC_IO_INT_WORD                0x0C0
+#define __LC_MCCK_CODE                  0x0E8
+
+#define __LC_RETURN_PSW                 0x200
+
+#define __LC_SAVE_AREA                  0xC00
+
+#ifndef __s390x__
+#define __LC_IRB                        0x208
+#define __LC_SYNC_ENTER_TIMER           0x248
+#define __LC_ASYNC_ENTER_TIMER          0x250
+#define __LC_EXIT_TIMER                 0x258
+#define __LC_LAST_UPDATE_TIMER          0x260
+#define __LC_USER_TIMER                 0x268
+#define __LC_SYSTEM_TIMER               0x270
+#define __LC_LAST_UPDATE_CLOCK          0x278
+#define __LC_STEAL_CLOCK                0x280
+#define __LC_KERNEL_STACK               0xC40
+#define __LC_THREAD_INFO                0xC44
+#define __LC_ASYNC_STACK                0xC48
+#define __LC_KERNEL_ASCE                0xC4C
+#define __LC_USER_ASCE                  0xC50
+#define __LC_PANIC_STACK                0xC54
+#define __LC_CPUID                      0xC60
+#define __LC_CPUADDR                    0xC68
+#define __LC_IPLDEV                     0xC7C
+#define __LC_JIFFY_TIMER                0xC80
+#define __LC_CURRENT                    0xC90
+#define __LC_INT_CLOCK                  0xC98
+#else /* __s390x__ */
+#define __LC_IRB                        0x210
+#define __LC_SYNC_ENTER_TIMER           0x250
+#define __LC_ASYNC_ENTER_TIMER          0x258
+#define __LC_EXIT_TIMER                 0x260
+#define __LC_LAST_UPDATE_TIMER          0x268
+#define __LC_USER_TIMER                 0x270
+#define __LC_SYSTEM_TIMER               0x278
+#define __LC_LAST_UPDATE_CLOCK          0x280
+#define __LC_STEAL_CLOCK                0x288
+#define __LC_DIAG44_OPCODE              0x290
+#define __LC_KERNEL_STACK               0xD40
+#define __LC_THREAD_INFO                0xD48
+#define __LC_ASYNC_STACK                0xD50
+#define __LC_KERNEL_ASCE                0xD58
+#define __LC_USER_ASCE                  0xD60
+#define __LC_PANIC_STACK                0xD68
+#define __LC_CPUID                      0xD90
+#define __LC_CPUADDR                    0xD98
+#define __LC_IPLDEV                     0xDB8
+#define __LC_JIFFY_TIMER                0xDC0
+#define __LC_CURRENT                    0xDD8
+#define __LC_INT_CLOCK                  0xDE8
+#endif /* __s390x__ */
+
+#define __LC_PANIC_MAGIC                0xE00
+
+#ifndef __s390x__
+#define __LC_PFAULT_INTPARM             0x080
+#define __LC_AREGS_SAVE_AREA            0x120
+#define __LC_CREGS_SAVE_AREA            0x1C0
+#else /* __s390x__ */
+#define __LC_PFAULT_INTPARM             0x11B8
+#define __LC_AREGS_SAVE_AREA            0x1340
+#define __LC_CREGS_SAVE_AREA            0x1380
+#endif /* __s390x__ */
+
+#ifndef __ASSEMBLY__
+
+#include <linux/config.h>
+#include <asm/processor.h>
+#include <linux/types.h>
+#include <asm/sigp.h>
+
+void restart_int_handler(void);
+void ext_int_handler(void);
+void system_call(void);
+void pgm_check_handler(void);
+void mcck_int_handler(void);
+void io_int_handler(void);
+
+struct _lowcore
+{
+#ifndef __s390x__
+        /* prefix area: defined by architecture */
+        psw_t        restart_psw;              /* 0x000 */
+        __u32        ccw2[4];                  /* 0x008 */
+        psw_t        external_old_psw;         /* 0x018 */
+        psw_t        svc_old_psw;              /* 0x020 */
+        psw_t        program_old_psw;          /* 0x028 */
+        psw_t        mcck_old_psw;             /* 0x030 */
+        psw_t        io_old_psw;               /* 0x038 */
+        __u8         pad1[0x58-0x40];          /* 0x040 */
+        psw_t        external_new_psw;         /* 0x058 */
+        psw_t        svc_new_psw;              /* 0x060 */
+        psw_t        program_new_psw;          /* 0x068 */
+        psw_t        mcck_new_psw;             /* 0x070 */
+        psw_t        io_new_psw;               /* 0x078 */
+        __u32        ext_params;               /* 0x080 */
+        __u16        cpu_addr;                 /* 0x084 */
+        __u16        ext_int_code;             /* 0x086 */
+        __u16        svc_ilc;                  /* 0x088 */
+        __u16        svc_code;                 /* 0x08a */
+        __u16        pgm_ilc;                  /* 0x08c */
+        __u16        pgm_code;                 /* 0x08e */
+        __u32        trans_exc_code;           /* 0x090 */
+        __u16        mon_class_num;            /* 0x094 */
+        __u16        per_perc_atmid;           /* 0x096 */
+        __u32        per_address;              /* 0x098 */
+        __u32        monitor_code;             /* 0x09c */
+        __u8         exc_access_id;            /* 0x0a0 */
+        __u8         per_access_id;            /* 0x0a1 */
+        __u8         pad2[0xB8-0xA2];          /* 0x0a2 */
+        __u16        subchannel_id;            /* 0x0b8 */
+        __u16        subchannel_nr;            /* 0x0ba */
+        __u32        io_int_parm;              /* 0x0bc */
+        __u32        io_int_word;              /* 0x0c0 */
+        __u8         pad3[0xD8-0xC4];          /* 0x0c4 */
+        __u32        cpu_timer_save_area[2];   /* 0x0d8 */
+        __u32        clock_comp_save_area[2];  /* 0x0e0 */
+        __u32        mcck_interruption_code[2]; /* 0x0e8 */
+        __u8         pad4[0xf4-0xf0];          /* 0x0f0 */
+        __u32        external_damage_code;     /* 0x0f4 */
+        __u32        failing_storage_address;  /* 0x0f8 */
+        __u8         pad5[0x100-0xfc];         /* 0x0fc */
+        __u32        st_status_fixed_logout[4];/* 0x100 */
+        __u8         pad6[0x120-0x110];        /* 0x110 */
+        __u32        access_regs_save_area[16];/* 0x120 */
+        __u32        floating_pt_save_area[8]; /* 0x160 */
+        __u32        gpregs_save_area[16];     /* 0x180 */
+        __u32        cregs_save_area[16];      /* 0x1c0 */      
+
+        psw_t        return_psw;               /* 0x200 */
+        __u8         irb[64];                  /* 0x208 */
+        __u64        sync_enter_timer;         /* 0x248 */
+        __u64        async_enter_timer;        /* 0x250 */
+        __u64        exit_timer;               /* 0x258 */
+        __u64        last_update_timer;        /* 0x260 */
+        __u64        user_timer;               /* 0x268 */
+        __u64        system_timer;             /* 0x270 */
+        __u64        last_update_clock;        /* 0x278 */
+        __u64        steal_clock;              /* 0x280 */
+        __u8         pad8[0xc00-0x288];        /* 0x288 */
+
+        /* System info area */
+        __u32        save_area[16];            /* 0xc00 */
+        __u32        kernel_stack;             /* 0xc40 */
+        __u32        thread_info;              /* 0xc44 */
+        __u32        async_stack;              /* 0xc48 */
+        __u32        kernel_asce;              /* 0xc4c */
+        __u32        user_asce;                /* 0xc50 */
+        __u32        panic_stack;              /* 0xc54 */
+        __u8         pad10[0xc60-0xc58];       /* 0xc58 */
+        /* entry.S sensitive area start */
+        struct       cpuinfo_S390 cpu_data;    /* 0xc60 */
+        __u32        ipl_device;               /* 0xc7c */
+        /* entry.S sensitive area end */
+
+        /* SMP info area: defined by DJB */
+        __u64        jiffy_timer;              /* 0xc80 */
+        __u32        ext_call_fast;            /* 0xc88 */
+        __u32        percpu_offset;            /* 0xc8c */
+        __u32        current_task;             /* 0xc90 */
+        __u32        softirq_pending;          /* 0xc94 */
+        __u64        int_clock;                /* 0xc98 */
+        __u8         pad11[0xe00-0xca0];       /* 0xca0 */
+
+        /* 0xe00 is used as indicator for dump tools */
+        /* whether the kernel died with panic() or not */
+        __u32        panic_magic;              /* 0xe00 */
+
+        /* Align to the top 1k of prefix area */
+        __u8         pad12[0x1000-0xe04];      /* 0xe04 */
+#else /* !__s390x__ */
+        /* prefix area: defined by architecture */
+        __u32        ccw1[2];                  /* 0x000 */
+        __u32        ccw2[4];                  /* 0x008 */
+        __u8         pad1[0x80-0x18];          /* 0x018 */
+        __u32        ext_params;               /* 0x080 */
+        __u16        cpu_addr;                 /* 0x084 */
+        __u16        ext_int_code;             /* 0x086 */
+        __u16        svc_ilc;                  /* 0x088 */
+        __u16        svc_code;                 /* 0x08a */
+        __u16        pgm_ilc;                  /* 0x08c */
+        __u16        pgm_code;                 /* 0x08e */
+        __u32        data_exc_code;            /* 0x090 */
+        __u16        mon_class_num;            /* 0x094 */
+        __u16        per_perc_atmid;           /* 0x096 */
+        addr_t       per_address;              /* 0x098 */
+        __u8         exc_access_id;            /* 0x0a0 */
+        __u8         per_access_id;            /* 0x0a1 */
+        __u8         op_access_id;             /* 0x0a2 */
+        __u8         ar_access_id;             /* 0x0a3 */
+        __u8         pad2[0xA8-0xA4];          /* 0x0a4 */
+        addr_t       trans_exc_code;           /* 0x0A0 */
+        addr_t       monitor_code;             /* 0x09c */
+        __u16        subchannel_id;            /* 0x0b8 */
+        __u16        subchannel_nr;            /* 0x0ba */
+        __u32        io_int_parm;              /* 0x0bc */
+        __u32        io_int_word;              /* 0x0c0 */
+        __u8         pad3[0xc8-0xc4];          /* 0x0c4 */
+        __u32        stfl_fac_list;            /* 0x0c8 */
+        __u8         pad4[0xe8-0xcc];          /* 0x0cc */
+        __u32        mcck_interruption_code[2]; /* 0x0e8 */
+        __u8         pad5[0xf4-0xf0];          /* 0x0f0 */
+        __u32        external_damage_code;     /* 0x0f4 */
+        addr_t       failing_storage_address;  /* 0x0f8 */
+        __u8         pad6[0x120-0x100];        /* 0x100 */
+        psw_t        restart_old_psw;          /* 0x120 */
+        psw_t        external_old_psw;         /* 0x130 */
+        psw_t        svc_old_psw;              /* 0x140 */
+        psw_t        program_old_psw;          /* 0x150 */
+        psw_t        mcck_old_psw;             /* 0x160 */
+        psw_t        io_old_psw;               /* 0x170 */
+        __u8         pad7[0x1a0-0x180];        /* 0x180 */
+        psw_t        restart_psw;              /* 0x1a0 */
+        psw_t        external_new_psw;         /* 0x1b0 */
+        psw_t        svc_new_psw;              /* 0x1c0 */
+        psw_t        program_new_psw;          /* 0x1d0 */
+        psw_t        mcck_new_psw;             /* 0x1e0 */
+        psw_t        io_new_psw;               /* 0x1f0 */
+        psw_t        return_psw;               /* 0x200 */
+        __u8         irb[64];                  /* 0x210 */
+        __u64        sync_enter_timer;         /* 0x250 */
+        __u64        async_enter_timer;        /* 0x258 */
+        __u64        exit_timer;               /* 0x260 */
+        __u64        last_update_timer;        /* 0x268 */
+        __u64        user_timer;               /* 0x270 */
+        __u64        system_timer;             /* 0x278 */
+        __u64        last_update_clock;        /* 0x280 */
+        __u64        steal_clock;              /* 0x288 */
+        __u32        diag44_opcode;            /* 0x290 */
+        __u8         pad8[0xc00-0x294];        /* 0x294 */
+        /* System info area */
+        __u64        save_area[16];            /* 0xc00 */
+        __u8         pad9[0xd40-0xc80];        /* 0xc80 */
+        __u64        kernel_stack;             /* 0xd40 */
+        __u64        thread_info;              /* 0xd48 */
+        __u64        async_stack;              /* 0xd50 */
+        __u64        kernel_asce;              /* 0xd58 */
+        __u64        user_asce;                /* 0xd60 */
+        __u64        panic_stack;              /* 0xd68 */
+        __u8         pad10[0xd80-0xd70];       /* 0xd70 */
+        /* entry.S sensitive area start */
+        struct       cpuinfo_S390 cpu_data;    /* 0xd80 */
+        __u32        ipl_device;               /* 0xdb8 */
+        __u32        pad11;                    /* 0xdbc */
+        /* entry.S sensitive area end */
+
+        /* SMP info area: defined by DJB */
+        __u64        jiffy_timer;              /* 0xdc0 */
+        __u64        ext_call_fast;            /* 0xdc8 */
+        __u64        percpu_offset;            /* 0xdd0 */
+        __u64        current_task;             /* 0xdd8 */
+        __u64        softirq_pending;          /* 0xde0 */
+        __u64        int_clock;                /* 0xde8 */
+        __u8         pad12[0xe00-0xdf0];       /* 0xdf0 */
+
+        /* 0xe00 is used as indicator for dump tools */
+        /* whether the kernel died with panic() or not */
+        __u32        panic_magic;              /* 0xe00 */
+
+        __u8         pad13[0x1200-0xe04];      /* 0xe04 */
+
+        /* System info area */ 
+
+        __u64        floating_pt_save_area[16]; /* 0x1200 */
+        __u64        gpregs_save_area[16];      /* 0x1280 */
+        __u32        st_status_fixed_logout[4]; /* 0x1300 */
+        __u8         pad14[0x1318-0x1310];      /* 0x1310 */
+        __u32        prefixreg_save_area;       /* 0x1318 */
+        __u32        fpt_creg_save_area;        /* 0x131c */
+        __u8         pad15[0x1324-0x1320];      /* 0x1320 */
+        __u32        tod_progreg_save_area;     /* 0x1324 */
+        __u32        cpu_timer_save_area[2];    /* 0x1328 */
+        __u32        clock_comp_save_area[2];   /* 0x1330 */
+        __u8         pad16[0x1340-0x1338];      /* 0x1338 */ 
+        __u32        access_regs_save_area[16]; /* 0x1340 */ 
+        __u64        cregs_save_area[16];       /* 0x1380 */
+
+        /* align to the top of the prefix area */
+
+        __u8         pad17[0x2000-0x1400];      /* 0x1400 */
+#endif /* !__s390x__ */
+} __attribute__((packed)); /* End structure*/
+
+#define S390_lowcore (*((struct _lowcore *) 0))
+extern struct _lowcore *lowcore_ptr[];
+
+extern __inline__ void set_prefix(__u32 address)
+{
+        __asm__ __volatile__ ("spx %0" : : "m" (address) : "memory" );
+}
+
+#define __PANIC_MAGIC           0xDEADC0DE
+
+#endif
+
+#endif
diff --git a/include/asm-s390/mathemu.h b/include/asm-s390/mathemu.h
new file mode 100644
index 000000000000..e8dd1ba8edb0
--- /dev/null
+++ b/include/asm-s390/mathemu.h
@@ -0,0 +1,29 @@
+/*
+ *  arch/s390/kernel/mathemu.h
+ *    IEEE floating point emulation.
+ *
+ *  S390 version
+ *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
+ */
+
+#ifndef __MATHEMU__
+#define __MATHEMU__
+
+extern int math_emu_b3(__u8 *, struct pt_regs *);
+extern int math_emu_ed(__u8 *, struct pt_regs *);
+extern int math_emu_ldr(__u8 *);
+extern int math_emu_ler(__u8 *);
+extern int math_emu_std(__u8 *, struct pt_regs *);
+extern int math_emu_ld(__u8 *, struct pt_regs *);
+extern int math_emu_ste(__u8 *, struct pt_regs *);
+extern int math_emu_le(__u8 *, struct pt_regs *);
+extern int math_emu_lfpc(__u8 *, struct pt_regs *);
+extern int math_emu_stfpc(__u8 *, struct pt_regs *);
+extern int math_emu_srnm(__u8 *, struct pt_regs *);
+
+#endif                                 /* __MATHEMU__                      */
+
+
+
+
diff --git a/include/asm-s390/mman.h b/include/asm-s390/mman.h
new file mode 100644
index 000000000000..ea86bd12204f
--- /dev/null
+++ b/include/asm-s390/mman.h
@@ -0,0 +1,51 @@
+/*
+ *  include/asm-s390/mman.h
+ *
+ *  S390 version
+ *
+ *  Derived from "include/asm-i386/mman.h"
+ */
+
+#ifndef __S390_MMAN_H__
+#define __S390_MMAN_H__
+
+#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        0x8             /* page may be used for atomic ops */
+#define PROT_NONE       0x0             /* page can not be accessed */
+#define PROT_GROWSDOWN  0x01000000      /* mprotect flag: extend change to start of growsdown vma */
+#define PROT_GROWSUP    0x02000000      /* mprotect flag: extend change to end of growsup vma */
+
+#define MAP_SHARED      0x01            /* Share changes */
+#define MAP_PRIVATE     0x02            /* Changes are private */
+#define MAP_TYPE        0x0f            /* Mask for type of mapping */
+#define MAP_FIXED       0x10            /* Interpret addr exactly */
+#define MAP_ANONYMOUS   0x20            /* don't use a file */
+
+#define MAP_GROWSDOWN   0x0100          /* stack-like segment */
+#define MAP_DENYWRITE   0x0800          /* ETXTBSY */
+#define MAP_EXECUTABLE  0x1000          /* mark it as an executable */
+#define MAP_LOCKED      0x2000          /* pages are locked */
+#define MAP_NORESERVE   0x4000          /* don't check for reservations */
+#define MAP_POPULATE    0x8000          /* populate (prefault) pagetables */
+#define MAP_NONBLOCK    0x10000         /* do not block on IO */
+
+#define MS_ASYNC        1               /* sync memory asynchronously */
+#define MS_INVALIDATE   2               /* invalidate the caches */
+#define MS_SYNC         4               /* synchronous memory sync */
+
+#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 /* __S390_MMAN_H__ */
diff --git a/include/asm-s390/mmu.h b/include/asm-s390/mmu.h
new file mode 100644
index 000000000000..ccd36d26615a
--- /dev/null
+++ b/include/asm-s390/mmu.h
@@ -0,0 +1,7 @@
+#ifndef __MMU_H
+#define __MMU_H
+
+/* Default "unsigned long" context */
+typedef unsigned long mm_context_t;
+
+#endif
diff --git a/include/asm-s390/mmu_context.h b/include/asm-s390/mmu_context.h
new file mode 100644
index 000000000000..3a3bb3f2dad5
--- /dev/null
+++ b/include/asm-s390/mmu_context.h
@@ -0,0 +1,54 @@
+/*
+ *  include/asm-s390/mmu_context.h
+ *
+ *  S390 version
+ *
+ *  Derived from "include/asm-i386/mmu_context.h"
+ */
+
+#ifndef __S390_MMU_CONTEXT_H
+#define __S390_MMU_CONTEXT_H
+
+/*
+ * get a new mmu context.. S390 don't know about contexts.
+ */
+#define init_new_context(tsk,mm)        0
+
+#define destroy_context(mm)             do { } while (0)
+
+static inline void enter_lazy_tlb(struct mm_struct *mm,
+                                  struct task_struct *tsk)
+{
+}
+
+static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
+                             struct task_struct *tsk)
+{
+        if (prev != next) {
+#ifndef __s390x__
+                S390_lowcore.user_asce = (__pa(next->pgd)&PAGE_MASK) |
+                      (_SEGMENT_TABLE|USER_STD_MASK);
+                /* Load home space page table origin. */
+                asm volatile("lctl  13,13,%0"
+                             : : "m" (S390_lowcore.user_asce) );
+#else /* __s390x__ */
+                S390_lowcore.user_asce = (__pa(next->pgd) & PAGE_MASK) |
+                        (_REGION_TABLE|USER_STD_MASK);
+                /* Load home space page table origin. */
+                asm volatile("lctlg  13,13,%0"
+                             : : "m" (S390_lowcore.user_asce) );
+#endif /* __s390x__ */
+        }
+        cpu_set(smp_processor_id(), next->cpu_vm_mask);
+}
+
+#define deactivate_mm(tsk,mm)   do { } while (0)
+
+extern inline void activate_mm(struct mm_struct *prev,
+                               struct mm_struct *next)
+{
+        switch_mm(prev, next, current);
+        set_fs(current->thread.mm_segment);
+}
+
+#endif
diff --git a/include/asm-s390/module.h b/include/asm-s390/module.h
new file mode 100644
index 000000000000..1cc1c5af705a
--- /dev/null
+++ b/include/asm-s390/module.h
@@ -0,0 +1,46 @@
+#ifndef _ASM_S390_MODULE_H
+#define _ASM_S390_MODULE_H
+/*
+ * This file contains the s390 architecture specific module code.
+ */
+
+struct mod_arch_syminfo
+{
+        unsigned long got_offset;
+        unsigned long plt_offset;
+        int got_initialized;
+        int plt_initialized;
+};
+
+struct mod_arch_specific
+{
+        /* Starting offset of got in the module core memory. */
+        unsigned long got_offset;
+        /* Starting offset of plt in the module core memory. */
+        unsigned long plt_offset;
+        /* Size of the got. */
+        unsigned long got_size;
+        /* Size of the plt. */
+        unsigned long plt_size;
+        /* Number of symbols in syminfo. */
+        int nsyms;
+        /* Additional symbol information (got and plt offsets). */
+        struct mod_arch_syminfo *syminfo;
+};
+
+#ifdef __s390x__
+#define ElfW(x) Elf64_ ## x
+#define ELFW(x) ELF64_ ## x
+#else
+#define ElfW(x) Elf32_ ## x
+#define ELFW(x) ELF32_ ## x
+#endif
+
+#define Elf_Addr ElfW(Addr)
+#define Elf_Rela ElfW(Rela)
+#define Elf_Shdr ElfW(Shdr)
+#define Elf_Sym ElfW(Sym)
+#define Elf_Ehdr ElfW(Ehdr)
+#define ELF_R_SYM ELFW(R_SYM)
+#define ELF_R_TYPE ELFW(R_TYPE)
+#endif /* _ASM_S390_MODULE_H */
diff --git a/include/asm-s390/msgbuf.h b/include/asm-s390/msgbuf.h
new file mode 100644
index 000000000000..1bbdee927924
--- /dev/null
+++ b/include/asm-s390/msgbuf.h
@@ -0,0 +1,37 @@
+#ifndef _S390_MSGBUF_H
+#define _S390_MSGBUF_H
+
+/* 
+ * The msqid64_ds structure for S/390 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
+ */
+
+struct msqid64_ds {
+        struct ipc64_perm msg_perm;
+        __kernel_time_t msg_stime;      /* last msgsnd time */
+#ifndef __s390x__
+        unsigned long   __unused1;
+#endif /* ! __s390x__ */
+        __kernel_time_t msg_rtime;      /* last msgrcv time */
+#ifndef __s390x__
+        unsigned long   __unused2;
+#endif /* ! __s390x__ */
+        __kernel_time_t msg_ctime;      /* last change time */
+#ifndef __s390x__
+        unsigned long   __unused3;
+#endif /* ! __s390x__ */
+        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 /* _S390_MSGBUF_H */
diff --git a/include/asm-s390/namei.h b/include/asm-s390/namei.h
new file mode 100644
index 000000000000..3e286bdde4b0
--- /dev/null
+++ b/include/asm-s390/namei.h
@@ -0,0 +1,21 @@
+/*
+ *  include/asm-s390/namei.h
+ *
+ *  S390 version
+ *
+ *  Derived from "include/asm-i386/namei.h"
+ *
+ *  Included from linux/fs/namei.c
+ */
+
+#ifndef __S390_NAMEI_H
+#define __S390_NAMEI_H
+
+/* This dummy routine maybe changed to something useful
+ * for /usr/gnemul/ emulation stuff.
+ * Look at asm-sparc/namei.h for details.
+ */
+
+#define __emul_prefix() NULL
+
+#endif /* __S390_NAMEI_H */
diff --git a/include/asm-s390/page.h b/include/asm-s390/page.h
new file mode 100644
index 000000000000..614e2a93c703
--- /dev/null
+++ b/include/asm-s390/page.h
@@ -0,0 +1,208 @@
+/*
+ *  include/asm-s390/page.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999,2000 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Hartmut Penner (hp@de.ibm.com)
+ */
+
+#ifndef _S390_PAGE_H
+#define _S390_PAGE_H
+
+#include <asm/setup.h>
+#include <asm/types.h>
+
+/* PAGE_SHIFT determines the page size */
+#define PAGE_SHIFT      12
+#define PAGE_SIZE       (1UL << PAGE_SHIFT)
+#define PAGE_MASK       (~(PAGE_SIZE-1))
+
+#ifdef __KERNEL__
+#ifndef __ASSEMBLY__
+
+#ifndef __s390x__
+
+static inline void clear_page(void *page)
+{
+        register_pair rp;
+
+        rp.subreg.even = (unsigned long) page;
+        rp.subreg.odd = (unsigned long) 4096;
+        asm volatile ("   slr  1,1\n"
+                      "   mvcl %0,0"
+                      : "+&a" (rp) : : "memory", "cc", "1" );
+}
+
+static inline void copy_page(void *to, void *from)
+{
+        if (MACHINE_HAS_MVPG)
+                asm volatile ("   sr   0,0\n"
+                              "   mvpg %0,%1"
+                              : : "a" ((void *)(to)), "a" ((void *)(from))
+                              : "memory", "cc", "0" );
+        else
+                asm volatile ("   mvc  0(256,%0),0(%1)\n"
+                              "   mvc  256(256,%0),256(%1)\n"
+                              "   mvc  512(256,%0),512(%1)\n"
+                              "   mvc  768(256,%0),768(%1)\n"
+                              "   mvc  1024(256,%0),1024(%1)\n"
+                              "   mvc  1280(256,%0),1280(%1)\n"
+                              "   mvc  1536(256,%0),1536(%1)\n"
+                              "   mvc  1792(256,%0),1792(%1)\n"
+                              "   mvc  2048(256,%0),2048(%1)\n"
+                              "   mvc  2304(256,%0),2304(%1)\n"
+                              "   mvc  2560(256,%0),2560(%1)\n"
+                              "   mvc  2816(256,%0),2816(%1)\n"
+                              "   mvc  3072(256,%0),3072(%1)\n"
+                              "   mvc  3328(256,%0),3328(%1)\n"
+                              "   mvc  3584(256,%0),3584(%1)\n"
+                              "   mvc  3840(256,%0),3840(%1)\n"
+                              : : "a"((void *)(to)),"a"((void *)(from)) 
+                              : "memory" );
+}
+
+#else /* __s390x__ */
+
+static inline void clear_page(void *page)
+{
+        asm volatile ("   lgr  2,%0\n"
+                      "   lghi 3,4096\n"
+                      "   slgr 1,1\n"
+                      "   mvcl 2,0"
+                      : : "a" ((void *) (page))
+                      : "memory", "cc", "1", "2", "3" );
+}
+
+static inline void copy_page(void *to, void *from)
+{
+        if (MACHINE_HAS_MVPG)
+                asm volatile ("   sgr  0,0\n"
+                              "   mvpg %0,%1"
+                              : : "a" ((void *)(to)), "a" ((void *)(from))
+                              : "memory", "cc", "0" );
+        else
+                asm volatile ("   mvc  0(256,%0),0(%1)\n"
+                              "   mvc  256(256,%0),256(%1)\n"
+                              "   mvc  512(256,%0),512(%1)\n"
+                              "   mvc  768(256,%0),768(%1)\n"
+                              "   mvc  1024(256,%0),1024(%1)\n"
+                              "   mvc  1280(256,%0),1280(%1)\n"
+                              "   mvc  1536(256,%0),1536(%1)\n"
+                              "   mvc  1792(256,%0),1792(%1)\n"
+                              "   mvc  2048(256,%0),2048(%1)\n"
+                              "   mvc  2304(256,%0),2304(%1)\n"
+                              "   mvc  2560(256,%0),2560(%1)\n"
+                              "   mvc  2816(256,%0),2816(%1)\n"
+                              "   mvc  3072(256,%0),3072(%1)\n"
+                              "   mvc  3328(256,%0),3328(%1)\n"
+                              "   mvc  3584(256,%0),3584(%1)\n"
+                              "   mvc  3840(256,%0),3840(%1)\n"
+                              : : "a"((void *)(to)),"a"((void *)(from)) 
+                              : "memory" );
+}
+
+#endif /* __s390x__ */
+
+#define clear_user_page(page, vaddr, pg)        clear_page(page)
+#define copy_user_page(to, from, vaddr, pg)     copy_page(to, from)
+
+#define alloc_zeroed_user_highpage(vma, vaddr) alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO, vma, vaddr)
+#define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE
+
+/* Pure 2^n version of get_order */
+extern __inline__ int get_order(unsigned long size)
+{
+        int order;
+
+        size = (size-1) >> (PAGE_SHIFT-1);
+        order = -1;
+        do {
+                size >>= 1;
+                order++;
+        } while (size);
+        return order;
+}
+
+/*
+ * These are used to make use of C type-checking..
+ */
+
+typedef struct { unsigned long pgprot; } pgprot_t;
+typedef struct { unsigned long pte; } pte_t;
+
+#define pte_val(x)      ((x).pte)
+#define pgprot_val(x)   ((x).pgprot)
+
+#ifndef __s390x__
+
+typedef struct { unsigned long pmd; } pmd_t;
+typedef struct {
+        unsigned long pgd0;
+        unsigned long pgd1;
+        unsigned long pgd2;
+        unsigned long pgd3;
+        } pgd_t;
+
+#define pmd_val(x)      ((x).pmd)
+#define pgd_val(x)      ((x).pgd0)
+
+#else /* __s390x__ */
+
+typedef struct { 
+        unsigned long pmd0;
+        unsigned long pmd1; 
+        } pmd_t;
+typedef struct { unsigned long pgd; } pgd_t;
+
+#define pmd_val(x)      ((x).pmd0)
+#define pmd_val1(x)     ((x).pmd1)
+#define pgd_val(x)      ((x).pgd)
+
+#endif /* __s390x__ */
+
+#define __pte(x)        ((pte_t) { (x) } )
+#define __pmd(x)        ((pmd_t) { (x) } )
+#define __pgd(x)        ((pgd_t) { (x) } )
+#define __pgprot(x)     ((pgprot_t) { (x) } )
+
+/* default storage key used for all pages */
+extern unsigned int default_storage_key;
+
+static inline void
+page_set_storage_key(unsigned long addr, unsigned int skey)
+{
+        asm volatile ( "sske %0,%1" : : "d" (skey), "a" (addr) );
+}
+
+static inline unsigned int
+page_get_storage_key(unsigned long addr)
+{
+        unsigned int skey;
+
+        asm volatile ( "iske %0,%1" : "=d" (skey) : "a" (addr), "0" (0) );
+
+        return skey;
+}
+
+#endif /* !__ASSEMBLY__ */
+
+/* to align the pointer to the (next) page boundary */
+#define PAGE_ALIGN(addr)        (((addr)+PAGE_SIZE-1)&PAGE_MASK)
+
+#define __PAGE_OFFSET           0x0UL
+#define PAGE_OFFSET             0x0UL
+#define __pa(x)                 (unsigned long)(x)
+#define __va(x)                 (void *)(unsigned long)(x)
+#define pfn_to_page(pfn)        (mem_map + (pfn))
+#define page_to_pfn(page)       ((unsigned long)((page) - mem_map))
+#define virt_to_page(kaddr)     pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
+
+#define pfn_valid(pfn)          ((pfn) < max_mapnr)
+#define virt_addr_valid(kaddr)  pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
+
+#define VM_DATA_DEFAULT_FLAGS   (VM_READ | VM_WRITE | VM_EXEC | \
+                                 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
+
+#endif /* __KERNEL__ */
+
+#endif /* _S390_PAGE_H */
diff --git a/include/asm-s390/param.h b/include/asm-s390/param.h
new file mode 100644
index 000000000000..085a7e229b23
--- /dev/null
+++ b/include/asm-s390/param.h
@@ -0,0 +1,30 @@
+/*
+ *  include/asm-s390/param.h
+ *
+ *  S390 version
+ *
+ *  Derived from "include/asm-i386/param.h"
+ */
+
+#ifndef _ASMS390_PARAM_H
+#define _ASMS390_PARAM_H
+
+#ifdef __KERNEL__
+# define HZ             100             /* Internal kernel timer frequency */
+# define USER_HZ        100             /* .. some user interfaces are in "ticks" */
+# define CLOCKS_PER_SEC (USER_HZ)       /* like times() */
+#endif
+
+#ifndef HZ
+#define HZ 100
+#endif
+
+#define EXEC_PAGESIZE   4096
+
+#ifndef NOGROUP
+#define NOGROUP         (-1)
+#endif
+
+#define MAXHOSTNAMELEN  64      /* max length of hostname */
+
+#endif
diff --git a/include/asm-s390/pci.h b/include/asm-s390/pci.h
new file mode 100644
index 000000000000..42a145c9ddd6
--- /dev/null
+++ b/include/asm-s390/pci.h
@@ -0,0 +1,10 @@
+#ifndef __ASM_S390_PCI_H
+#define __ASM_S390_PCI_H
+
+/* S/390 systems don't have a PCI bus. This file is just here because some stupid .c code
+ * includes it even if CONFIG_PCI is not set.
+ */
+#define PCI_DMA_BUS_IS_PHYS (0)
+
+#endif /* __ASM_S390_PCI_H */
+
diff --git a/include/asm-s390/percpu.h b/include/asm-s390/percpu.h
new file mode 100644
index 000000000000..123fcaca295e
--- /dev/null
+++ b/include/asm-s390/percpu.h
@@ -0,0 +1,70 @@
+#ifndef __ARCH_S390_PERCPU__
+#define __ARCH_S390_PERCPU__
+
+#include <linux/compiler.h>
+#include <asm/lowcore.h>
+
+#define __GENERIC_PER_CPU
+
+/*
+ * s390 uses its own implementation for per cpu data, the offset of
+ * the cpu local data area is cached in the cpu's lowcore memory.
+ * For 64 bit module code s390 forces the use of a GOT slot for the
+ * address of the per cpu variable. This is needed because the module
+ * may be more than 4G above the per cpu area.
+ */
+#if defined(__s390x__) && defined(MODULE)
+
+#define __reloc_hide(var,offset) \
+  (*({ unsigned long *__ptr; \
+       asm ( "larl %0,per_cpu__"#var"@GOTENT" \
+             : "=a" (__ptr) : "X" (per_cpu__##var) ); \
+       (typeof(&per_cpu__##var))((*__ptr) + (offset)); }))
+
+#else
+
+#define __reloc_hide(var, offset) \
+  (*({ unsigned long __ptr; \
+       asm ( "" : "=a" (__ptr) : "0" (&per_cpu__##var) ); \
+       (typeof(&per_cpu__##var)) (__ptr + (offset)); }))
+
+#endif
+
+#ifdef CONFIG_SMP
+
+extern unsigned long __per_cpu_offset[NR_CPUS];
+
+/* Separate out the type, so (int[3], foo) works. */
+#define DEFINE_PER_CPU(type, name) \
+    __attribute__((__section__(".data.percpu"))) \
+    __typeof__(type) per_cpu__##name
+
+#define __get_cpu_var(var) __reloc_hide(var,S390_lowcore.percpu_offset)
+#define per_cpu(var,cpu) __reloc_hide(var,__per_cpu_offset[cpu])
+
+/* A macro to avoid #include hell... */
+#define percpu_modcopy(pcpudst, src, size)                      \
+do {                                                            \
+        unsigned int __i;                                       \
+        for (__i = 0; __i < NR_CPUS; __i++)                     \
+                if (cpu_possible(__i))                          \
+                        memcpy((pcpudst)+__per_cpu_offset[__i], \
+                               (src), (size));                  \
+} while (0)
+
+#else /* ! SMP */
+
+#define DEFINE_PER_CPU(type, name) \
+    __typeof__(type) per_cpu__##name
+
+#define __get_cpu_var(var) __reloc_hide(var,0)
+#define per_cpu(var,cpu) __reloc_hide(var,0)
+
+#endif /* SMP */
+
+#define DECLARE_PER_CPU(type, name) extern __typeof__(type) per_cpu__##name
+
+#define EXPORT_PER_CPU_SYMBOL(var) EXPORT_SYMBOL(per_cpu__##var)
+#define EXPORT_PER_CPU_SYMBOL_GPL(var) EXPORT_SYMBOL_GPL(per_cpu__##var)
+
+#endif /* __ARCH_S390_PERCPU__ */
diff --git a/include/asm-s390/pgalloc.h b/include/asm-s390/pgalloc.h
new file mode 100644
index 000000000000..3417dd71ab43
--- /dev/null
+++ b/include/asm-s390/pgalloc.h
@@ -0,0 +1,168 @@
+/*
+ *  include/asm-s390/pgalloc.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999,2000 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Hartmut Penner (hp@de.ibm.com)
+ *               Martin Schwidefsky (schwidefsky@de.ibm.com)
+ *
+ *  Derived from "include/asm-i386/pgalloc.h"
+ *    Copyright (C) 1994  Linus Torvalds
+ */
+
+#ifndef _S390_PGALLOC_H
+#define _S390_PGALLOC_H
+
+#include <linux/config.h>
+#include <linux/threads.h>
+#include <linux/gfp.h>
+#include <linux/mm.h>
+
+#define check_pgt_cache()       do {} while (0)
+
+extern void diag10(unsigned long addr);
+
+/*
+ * Allocate and free page tables. The xxx_kernel() versions are
+ * used to allocate a kernel page table - this turns on ASN bits
+ * if any.
+ */
+
+static inline pgd_t *pgd_alloc(struct mm_struct *mm)
+{
+        pgd_t *pgd;
+        int i;
+
+#ifndef __s390x__
+        pgd = (pgd_t *) __get_free_pages(GFP_KERNEL,1);
+        if (pgd != NULL)
+                for (i = 0; i < USER_PTRS_PER_PGD; i++)
+                        pmd_clear(pmd_offset(pgd + i, i*PGDIR_SIZE));
+#else /* __s390x__ */
+        pgd = (pgd_t *) __get_free_pages(GFP_KERNEL,2);
+        if (pgd != NULL)
+                for (i = 0; i < PTRS_PER_PGD; i++)
+                        pgd_clear(pgd + i);
+#endif /* __s390x__ */
+        return pgd;
+}
+
+static inline void pgd_free(pgd_t *pgd)
+{
+#ifndef __s390x__
+        free_pages((unsigned long) pgd, 1);
+#else /* __s390x__ */
+        free_pages((unsigned long) pgd, 2);
+#endif /* __s390x__ */
+}
+
+#ifndef __s390x__
+/*
+ * page middle directory allocation/free routines.
+ * We use pmd cache only on s390x, so these are dummy routines. This
+ * code never triggers because the pgd will always be present.
+ */
+#define pmd_alloc_one(mm,address)       ({ BUG(); ((pmd_t *)2); })
+#define pmd_free(x)                     do { } while (0)
+#define __pmd_free_tlb(tlb,x)           do { } while (0)
+#define pgd_populate(mm, pmd, pte)      BUG()
+#else /* __s390x__ */
+static inline pmd_t * pmd_alloc_one(struct mm_struct *mm, unsigned long vmaddr)
+{
+        pmd_t *pmd;
+        int i;
+
+        pmd = (pmd_t *) __get_free_pages(GFP_KERNEL, 2);
+        if (pmd != NULL) {
+                for (i=0; i < PTRS_PER_PMD; i++)
+                        pmd_clear(pmd+i);
+        }
+        return pmd;
+}
+
+static inline void pmd_free (pmd_t *pmd)
+{
+        free_pages((unsigned long) pmd, 2);
+}
+
+#define __pmd_free_tlb(tlb,pmd)                 \
+        do {                                    \
+                tlb_flush_mmu(tlb, 0, 0);       \
+                pmd_free(pmd);                  \
+         } while (0)
+
+static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
+{
+        pgd_val(*pgd) = _PGD_ENTRY | __pa(pmd);
+}
+
+#endif /* __s390x__ */
+
+static inline void 
+pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte)
+{
+#ifndef __s390x__
+        pmd_val(pmd[0]) = _PAGE_TABLE + __pa(pte);
+        pmd_val(pmd[1]) = _PAGE_TABLE + __pa(pte+256);
+        pmd_val(pmd[2]) = _PAGE_TABLE + __pa(pte+512);
+        pmd_val(pmd[3]) = _PAGE_TABLE + __pa(pte+768);
+#else /* __s390x__ */
+        pmd_val(*pmd) = _PMD_ENTRY + __pa(pte);
+        pmd_val1(*pmd) = _PMD_ENTRY + __pa(pte+256);
+#endif /* __s390x__ */
+}
+
+static inline void
+pmd_populate(struct mm_struct *mm, pmd_t *pmd, struct page *page)
+{
+        pmd_populate_kernel(mm, pmd, (pte_t *)((page-mem_map) << PAGE_SHIFT));
+}
+
+/*
+ * page table entry allocation/free routines.
+ */
+static inline pte_t *
+pte_alloc_one_kernel(struct mm_struct *mm, unsigned long vmaddr)
+{
+        pte_t *pte;
+        int i;
+
+        pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT);
+        if (pte != NULL) {
+                for (i=0; i < PTRS_PER_PTE; i++) {
+                        pte_clear(mm, vmaddr, pte+i);
+                        vmaddr += PAGE_SIZE;
+                }
+        }
+        return pte;
+}
+
+static inline struct page *
+pte_alloc_one(struct mm_struct *mm, unsigned long vmaddr)
+{
+        pte_t *pte = pte_alloc_one_kernel(mm, vmaddr);
+        if (pte)
+                return virt_to_page(pte);
+        return 0;
+}
+
+static inline void pte_free_kernel(pte_t *pte)
+{
+        free_page((unsigned long) pte);
+}
+
+static inline void pte_free(struct page *pte)
+{
+        __free_page(pte);
+}
+
+#define __pte_free_tlb(tlb,pte) tlb_remove_page(tlb,pte)
+
+/*
+ * This establishes kernel virtual mappings (e.g., as a result of a
+ * vmalloc call).  Since s390-esame uses a separate kernel page table,
+ * there is nothing to do here... :)
+ */
+#define set_pgdir(addr,entry) do { } while(0)
+
+#endif /* _S390_PGALLOC_H */
diff --git a/include/asm-s390/pgtable.h b/include/asm-s390/pgtable.h
new file mode 100644
index 000000000000..1633cb75f057
--- /dev/null
+++ b/include/asm-s390/pgtable.h
@@ -0,0 +1,813 @@
+/*
+ *  include/asm-s390/pgtable.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999,2000 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Hartmut Penner (hp@de.ibm.com)
+ *               Ulrich Weigand (weigand@de.ibm.com)
+ *               Martin Schwidefsky (schwidefsky@de.ibm.com)
+ *
+ *  Derived from "include/asm-i386/pgtable.h"
+ */
+
+#ifndef _ASM_S390_PGTABLE_H
+#define _ASM_S390_PGTABLE_H
+
+#include <asm-generic/4level-fixup.h>
+
+/*
+ * The Linux memory management assumes a three-level page table setup. For
+ * s390 31 bit we "fold" the mid level into the top-level page table, so
+ * that we physically have the same two-level page table as the s390 mmu
+ * expects in 31 bit mode. For s390 64 bit we use three of the five levels
+ * the hardware provides (region first and region second tables are not
+ * used).
+ *
+ * The "pgd_xxx()" functions are trivial for a folded two-level
+ * setup: the pgd is never bad, and a pmd always exists (as it's folded
+ * into the pgd entry)
+ *
+ * This file contains the functions and defines necessary to modify and use
+ * the S390 page table tree.
+ */
+#ifndef __ASSEMBLY__
+#include <asm/bug.h>
+#include <asm/processor.h>
+#include <linux/threads.h>
+
+struct vm_area_struct; /* forward declaration (include/linux/mm.h) */
+
+extern pgd_t swapper_pg_dir[] __attribute__ ((aligned (4096)));
+extern void paging_init(void);
+
+/*
+ * The S390 doesn't have any external MMU info: the kernel page
+ * tables contain all the necessary information.
+ */
+#define update_mmu_cache(vma, address, pte)     do { } while (0)
+
+/*
+ * ZERO_PAGE is a global shared page that is always zero: used
+ * for zero-mapped memory areas etc..
+ */
+extern char empty_zero_page[PAGE_SIZE];
+#define ZERO_PAGE(vaddr) (virt_to_page(empty_zero_page))
+#endif /* !__ASSEMBLY__ */
+
+/*
+ * PMD_SHIFT determines the size of the area a second-level page
+ * table can map
+ * PGDIR_SHIFT determines what a third-level page table entry can map
+ */
+#ifndef __s390x__
+# define PMD_SHIFT      22
+# define PGDIR_SHIFT    22
+#else /* __s390x__ */
+# define PMD_SHIFT      21
+# define PGDIR_SHIFT    31
+#endif /* __s390x__ */
+
+#define PMD_SIZE        (1UL << PMD_SHIFT)
+#define PMD_MASK        (~(PMD_SIZE-1))
+#define PGDIR_SIZE      (1UL << PGDIR_SHIFT)
+#define PGDIR_MASK      (~(PGDIR_SIZE-1))
+
+/*
+ * entries per page directory level: the S390 is two-level, so
+ * we don't really have any PMD directory physically.
+ * for S390 segment-table entries are combined to one PGD
+ * that leads to 1024 pte per pgd
+ */
+#ifndef __s390x__
+# define PTRS_PER_PTE    1024
+# define PTRS_PER_PMD    1
+# define PTRS_PER_PGD    512
+#else /* __s390x__ */
+# define PTRS_PER_PTE    512
+# define PTRS_PER_PMD    1024
+# define PTRS_PER_PGD    2048
+#endif /* __s390x__ */
+
+/*
+ * pgd entries used up by user/kernel:
+ */
+#ifndef __s390x__
+# define USER_PTRS_PER_PGD  512
+# define USER_PGD_PTRS      512
+# define KERNEL_PGD_PTRS    512
+# define FIRST_USER_PGD_NR  0
+#else /* __s390x__ */
+# define USER_PTRS_PER_PGD  2048
+# define USER_PGD_PTRS      2048
+# define KERNEL_PGD_PTRS    2048
+# define FIRST_USER_PGD_NR  0
+#endif /* __s390x__ */
+
+#define pte_ERROR(e) \
+        printk("%s:%d: bad pte %p.\n", __FILE__, __LINE__, (void *) pte_val(e))
+#define pmd_ERROR(e) \
+        printk("%s:%d: bad pmd %p.\n", __FILE__, __LINE__, (void *) pmd_val(e))
+#define pgd_ERROR(e) \
+        printk("%s:%d: bad pgd %p.\n", __FILE__, __LINE__, (void *) pgd_val(e))
+
+#ifndef __ASSEMBLY__
+/*
+ * Just any arbitrary offset to the start of the vmalloc VM area: the
+ * current 8MB value just means that there will be a 8MB "hole" after the
+ * physical memory until the kernel virtual memory starts.  That means that
+ * any out-of-bounds memory accesses will hopefully be caught.
+ * The vmalloc() routines leaves a hole of 4kB between each vmalloced
+ * area for the same reason. ;)
+ */
+#define VMALLOC_OFFSET  (8*1024*1024)
+#define VMALLOC_START   (((unsigned long) high_memory + VMALLOC_OFFSET) \
+                         & ~(VMALLOC_OFFSET-1))
+#ifndef __s390x__
+# define VMALLOC_END     (0x7fffffffL)
+#else /* __s390x__ */
+# define VMALLOC_END     (0x40000000000L)
+#endif /* __s390x__ */
+
+
+/*
+ * A 31 bit pagetable entry of S390 has following format:
+ *  |   PFRA          |    |  OS  |
+ * 0                   0IP0
+ * 00000000001111111111222222222233
+ * 01234567890123456789012345678901
+ *
+ * I Page-Invalid Bit:    Page is not available for address-translation
+ * P Page-Protection Bit: Store access not possible for page
+ *
+ * A 31 bit segmenttable entry of S390 has following format:
+ *  |   P-table origin      |  |PTL
+ * 0                         IC
+ * 00000000001111111111222222222233
+ * 01234567890123456789012345678901
+ *
+ * I Segment-Invalid Bit:    Segment is not available for address-translation
+ * C Common-Segment Bit:     Segment is not private (PoP 3-30)
+ * PTL Page-Table-Length:    Page-table length (PTL+1*16 entries -> up to 256)
+ *
+ * The 31 bit segmenttable origin of S390 has following format:
+ *
+ *  |S-table origin   |     | STL |
+ * X                   **GPS
+ * 00000000001111111111222222222233
+ * 01234567890123456789012345678901
+ *
+ * X Space-Switch event:
+ * G Segment-Invalid Bit:     *
+ * P Private-Space Bit:       Segment is not private (PoP 3-30)
+ * S Storage-Alteration:
+ * STL Segment-Table-Length:  Segment-table length (STL+1*16 entries -> up to 2048)
+ *
+ * A 64 bit pagetable entry of S390 has following format:
+ * |                     PFRA                         |0IP0|  OS  |
+ * 0000000000111111111122222222223333333333444444444455555555556666
+ * 0123456789012345678901234567890123456789012345678901234567890123
+ *
+ * I Page-Invalid Bit:    Page is not available for address-translation
+ * P Page-Protection Bit: Store access not possible for page
+ *
+ * A 64 bit segmenttable entry of S390 has following format:
+ * |        P-table origin                              |      TT
+ * 0000000000111111111122222222223333333333444444444455555555556666
+ * 0123456789012345678901234567890123456789012345678901234567890123
+ *
+ * I Segment-Invalid Bit:    Segment is not available for address-translation
+ * C Common-Segment Bit:     Segment is not private (PoP 3-30)
+ * P Page-Protection Bit: Store access not possible for page
+ * TT Type 00
+ *
+ * A 64 bit region table entry of S390 has following format:
+ * |        S-table origin                             |   TF  TTTL
+ * 0000000000111111111122222222223333333333444444444455555555556666
+ * 0123456789012345678901234567890123456789012345678901234567890123
+ *
+ * I Segment-Invalid Bit:    Segment is not available for address-translation
+ * TT Type 01
+ * TF
+ * TL Table lenght
+ *
+ * The 64 bit regiontable origin of S390 has following format:
+ * |      region table origon                          |       DTTL
+ * 0000000000111111111122222222223333333333444444444455555555556666
+ * 0123456789012345678901234567890123456789012345678901234567890123
+ *
+ * X Space-Switch event:
+ * G Segment-Invalid Bit:  
+ * P Private-Space Bit:    
+ * S Storage-Alteration:
+ * R Real space
+ * TL Table-Length:
+ *
+ * A storage key has the following format:
+ * | ACC |F|R|C|0|
+ *  0   3 4 5 6 7
+ * ACC: access key
+ * F  : fetch protection bit
+ * R  : referenced bit
+ * C  : changed bit
+ */
+
+/* Hardware bits in the page table entry */
+#define _PAGE_RO        0x200          /* HW read-only                     */
+#define _PAGE_INVALID   0x400          /* HW invalid                       */
+
+/* Mask and four different kinds of invalid pages. */
+#define _PAGE_INVALID_MASK      0x601
+#define _PAGE_INVALID_EMPTY     0x400
+#define _PAGE_INVALID_NONE      0x401
+#define _PAGE_INVALID_SWAP      0x600
+#define _PAGE_INVALID_FILE      0x601
+
+#ifndef __s390x__
+
+/* Bits in the segment table entry */
+#define _PAGE_TABLE_LEN 0xf            /* only full page-tables            */
+#define _PAGE_TABLE_COM 0x10           /* common page-table                */
+#define _PAGE_TABLE_INV 0x20           /* invalid page-table               */
+#define _SEG_PRESENT    0x001          /* Software (overlap with PTL)      */
+
+/* Bits int the storage key */
+#define _PAGE_CHANGED    0x02          /* HW changed bit                   */
+#define _PAGE_REFERENCED 0x04          /* HW referenced bit                */
+
+#define _USER_SEG_TABLE_LEN    0x7f    /* user-segment-table up to 2 GB    */
+#define _KERNEL_SEG_TABLE_LEN  0x7f    /* kernel-segment-table up to 2 GB  */
+
+/*
+ * User and Kernel pagetables are identical
+ */
+#define _PAGE_TABLE     _PAGE_TABLE_LEN
+#define _KERNPG_TABLE   _PAGE_TABLE_LEN
+
+/*
+ * The Kernel segment-tables includes the User segment-table
+ */
+
+#define _SEGMENT_TABLE  (_USER_SEG_TABLE_LEN|0x80000000|0x100)
+#define _KERNSEG_TABLE  _KERNEL_SEG_TABLE_LEN
+
+#define USER_STD_MASK   0x00000080UL
+
+#else /* __s390x__ */
+
+/* Bits in the segment table entry */
+#define _PMD_ENTRY_INV   0x20          /* invalid segment table entry      */
+#define _PMD_ENTRY       0x00        
+
+/* Bits in the region third table entry */
+#define _PGD_ENTRY_INV   0x20          /* invalid region table entry       */
+#define _PGD_ENTRY       0x07
+
+/*
+ * User and kernel page directory
+ */
+#define _REGION_THIRD       0x4
+#define _REGION_THIRD_LEN   0x3 
+#define _REGION_TABLE       (_REGION_THIRD|_REGION_THIRD_LEN|0x40|0x100)
+#define _KERN_REGION_TABLE  (_REGION_THIRD|_REGION_THIRD_LEN)
+
+#define USER_STD_MASK           0x0000000000000080UL
+
+/* Bits in the storage key */
+#define _PAGE_CHANGED    0x02          /* HW changed bit                   */
+#define _PAGE_REFERENCED 0x04          /* HW referenced bit                */
+
+#endif /* __s390x__ */
+
+/*
+ * No mapping available
+ */
+#define PAGE_NONE_SHARED  __pgprot(_PAGE_INVALID_NONE)
+#define PAGE_NONE_PRIVATE __pgprot(_PAGE_INVALID_NONE)
+#define PAGE_RO_SHARED    __pgprot(_PAGE_RO)
+#define PAGE_RO_PRIVATE   __pgprot(_PAGE_RO)
+#define PAGE_COPY         __pgprot(_PAGE_RO)
+#define PAGE_SHARED       __pgprot(0)
+#define PAGE_KERNEL       __pgprot(0)
+
+/*
+ * The S390 can't do page protection for execute, and considers that the
+ * same are read. Also, write permissions imply read permissions. This is
+ * the closest we can get..
+ */
+         /*xwr*/
+#define __P000  PAGE_NONE_PRIVATE
+#define __P001  PAGE_RO_PRIVATE
+#define __P010  PAGE_COPY
+#define __P011  PAGE_COPY
+#define __P100  PAGE_RO_PRIVATE
+#define __P101  PAGE_RO_PRIVATE
+#define __P110  PAGE_COPY
+#define __P111  PAGE_COPY
+
+#define __S000  PAGE_NONE_SHARED
+#define __S001  PAGE_RO_SHARED
+#define __S010  PAGE_SHARED
+#define __S011  PAGE_SHARED
+#define __S100  PAGE_RO_SHARED
+#define __S101  PAGE_RO_SHARED
+#define __S110  PAGE_SHARED
+#define __S111  PAGE_SHARED
+
+/*
+ * Certain architectures need to do special things when PTEs
+ * within a page table are directly modified.  Thus, the following
+ * hook is made available.
+ */
+extern inline void set_pte(pte_t *pteptr, pte_t pteval)
+{
+        *pteptr = pteval;
+}
+#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
+
+/*
+ * pgd/pmd/pte query functions
+ */
+#ifndef __s390x__
+
+extern inline int pgd_present(pgd_t pgd) { return 1; }
+extern inline int pgd_none(pgd_t pgd)    { return 0; }
+extern inline int pgd_bad(pgd_t pgd)     { return 0; }
+
+extern inline int pmd_present(pmd_t pmd) { return pmd_val(pmd) & _SEG_PRESENT; }
+extern inline int pmd_none(pmd_t pmd)    { return pmd_val(pmd) & _PAGE_TABLE_INV; }
+extern inline int pmd_bad(pmd_t pmd)
+{
+        return (pmd_val(pmd) & (~PAGE_MASK & ~_PAGE_TABLE_INV)) != _PAGE_TABLE;
+}
+
+#else /* __s390x__ */
+
+extern inline int pgd_present(pgd_t pgd)
+{
+        return (pgd_val(pgd) & ~PAGE_MASK) == _PGD_ENTRY;
+}
+
+extern inline int pgd_none(pgd_t pgd)
+{
+        return pgd_val(pgd) & _PGD_ENTRY_INV;
+}
+
+extern inline int pgd_bad(pgd_t pgd)
+{
+        return (pgd_val(pgd) & (~PAGE_MASK & ~_PGD_ENTRY_INV)) != _PGD_ENTRY;
+}
+
+extern inline int pmd_present(pmd_t pmd)
+{
+        return (pmd_val(pmd) & ~PAGE_MASK) == _PMD_ENTRY;
+}
+
+extern inline int pmd_none(pmd_t pmd)
+{
+        return pmd_val(pmd) & _PMD_ENTRY_INV;
+}
+
+extern inline int pmd_bad(pmd_t pmd)
+{
+        return (pmd_val(pmd) & (~PAGE_MASK & ~_PMD_ENTRY_INV)) != _PMD_ENTRY;
+}
+
+#endif /* __s390x__ */
+
+extern inline int pte_none(pte_t pte)
+{
+        return (pte_val(pte) & _PAGE_INVALID_MASK) == _PAGE_INVALID_EMPTY;
+}
+
+extern inline int pte_present(pte_t pte)
+{
+        return !(pte_val(pte) & _PAGE_INVALID) ||
+                (pte_val(pte) & _PAGE_INVALID_MASK) == _PAGE_INVALID_NONE;
+}
+
+extern inline int pte_file(pte_t pte)
+{
+        return (pte_val(pte) & _PAGE_INVALID_MASK) == _PAGE_INVALID_FILE;
+}
+
+#define pte_same(a,b)   (pte_val(a) == pte_val(b))
+
+/*
+ * query functions pte_write/pte_dirty/pte_young only work if
+ * pte_present() is true. Undefined behaviour if not..
+ */
+extern inline int pte_write(pte_t pte)
+{
+        return (pte_val(pte) & _PAGE_RO) == 0;
+}
+
+extern inline int pte_dirty(pte_t pte)
+{
+        /* A pte is neither clean nor dirty on s/390. The dirty bit
+         * is in the storage key. See page_test_and_clear_dirty for
+         * details.
+         */
+        return 0;
+}
+
+extern inline int pte_young(pte_t pte)
+{
+        /* A pte is neither young nor old on s/390. The young bit
+         * is in the storage key. See page_test_and_clear_young for
+         * details.
+         */
+        return 0;
+}
+
+extern inline int pte_read(pte_t pte)
+{
+        /* All pages are readable since we don't use the fetch
+         * protection bit in the storage key.
+         */
+        return 1;
+}
+
+/*
+ * pgd/pmd/pte modification functions
+ */
+
+#ifndef __s390x__
+
+extern inline void pgd_clear(pgd_t * pgdp)      { }
+
+extern inline void pmd_clear(pmd_t * pmdp)
+{
+        pmd_val(pmdp[0]) = _PAGE_TABLE_INV;
+        pmd_val(pmdp[1]) = _PAGE_TABLE_INV;
+        pmd_val(pmdp[2]) = _PAGE_TABLE_INV;
+        pmd_val(pmdp[3]) = _PAGE_TABLE_INV;
+}
+
+#else /* __s390x__ */
+
+extern inline void pgd_clear(pgd_t * pgdp)
+{
+        pgd_val(*pgdp) = _PGD_ENTRY_INV | _PGD_ENTRY;
+}
+
+extern inline void pmd_clear(pmd_t * pmdp)
+{
+        pmd_val(*pmdp) = _PMD_ENTRY_INV | _PMD_ENTRY;
+        pmd_val1(*pmdp) = _PMD_ENTRY_INV | _PMD_ENTRY;
+}
+
+#endif /* __s390x__ */
+
+extern inline void pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
+{
+        pte_val(*ptep) = _PAGE_INVALID_EMPTY;
+}
+
+/*
+ * The following pte modification functions only work if
+ * pte_present() is true. Undefined behaviour if not..
+ */
+extern inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
+{
+        pte_val(pte) &= PAGE_MASK;
+        pte_val(pte) |= pgprot_val(newprot);
+        return pte;
+}
+
+extern inline pte_t pte_wrprotect(pte_t pte)
+{
+        /* Do not clobber _PAGE_INVALID_NONE pages!  */
+        if (!(pte_val(pte) & _PAGE_INVALID))
+                pte_val(pte) |= _PAGE_RO;
+        return pte;
+}
+
+extern inline pte_t pte_mkwrite(pte_t pte) 
+{
+        pte_val(pte) &= ~_PAGE_RO;
+        return pte;
+}
+
+extern inline pte_t pte_mkclean(pte_t pte)
+{
+        /* The only user of pte_mkclean is the fork() code.
+           We must *not* clear the *physical* page dirty bit
+           just because fork() wants to clear the dirty bit in
+           *one* of the page's mappings.  So we just do nothing. */
+        return pte;
+}
+
+extern inline pte_t pte_mkdirty(pte_t pte)
+{
+        /* We do not explicitly set the dirty bit because the
+         * sske instruction is slow. It is faster to let the
+         * next instruction set the dirty bit.
+         */
+        return pte;
+}
+
+extern inline pte_t pte_mkold(pte_t pte)
+{
+        /* S/390 doesn't keep its dirty/referenced bit in the pte.
+         * There is no point in clearing the real referenced bit.
+         */
+        return pte;
+}
+
+extern inline pte_t pte_mkyoung(pte_t pte)
+{
+        /* S/390 doesn't keep its dirty/referenced bit in the pte.
+         * There is no point in setting the real referenced bit.
+         */
+        return pte;
+}
+
+static inline int ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep)
+{
+        return 0;
+}
+
+static inline int
+ptep_clear_flush_young(struct vm_area_struct *vma,
+                        unsigned long address, pte_t *ptep)
+{
+        /* No need to flush TLB; bits are in storage key */
+        return ptep_test_and_clear_young(vma, address, ptep);
+}
+
+static inline int ptep_test_and_clear_dirty(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep)
+{
+        return 0;
+}
+
+static inline int
+ptep_clear_flush_dirty(struct vm_area_struct *vma,
+                        unsigned long address, pte_t *ptep)
+{
+        /* No need to flush TLB; bits are in storage key */
+        return ptep_test_and_clear_dirty(vma, address, ptep);
+}
+
+static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
+{
+        pte_t pte = *ptep;
+        pte_clear(mm, addr, ptep);
+        return pte;
+}
+
+static inline pte_t
+ptep_clear_flush(struct vm_area_struct *vma,
+                 unsigned long address, pte_t *ptep)
+{
+        pte_t pte = *ptep;
+#ifndef __s390x__
+        if (!(pte_val(pte) & _PAGE_INVALID)) {
+                /* S390 has 1mb segments, we are emulating 4MB segments */
+                pte_t *pto = (pte_t *) (((unsigned long) ptep) & 0x7ffffc00);
+                __asm__ __volatile__ ("ipte %2,%3"
+                                      : "=m" (*ptep) : "m" (*ptep),
+                                        "a" (pto), "a" (address) );
+        }
+#else /* __s390x__ */
+        if (!(pte_val(pte) & _PAGE_INVALID)) 
+                __asm__ __volatile__ ("ipte %2,%3"
+                                      : "=m" (*ptep) : "m" (*ptep),
+                                        "a" (ptep), "a" (address) );
+#endif /* __s390x__ */
+        pte_val(*ptep) = _PAGE_INVALID_EMPTY;
+        return pte;
+}
+
+static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
+{
+        pte_t old_pte = *ptep;
+        set_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
+}
+
+static inline void
+ptep_establish(struct vm_area_struct *vma, 
+               unsigned long address, pte_t *ptep,
+               pte_t entry)
+{
+        ptep_clear_flush(vma, address, ptep);
+        set_pte(ptep, entry);
+}
+
+#define ptep_set_access_flags(__vma, __address, __ptep, __entry, __dirty) \
+        ptep_establish(__vma, __address, __ptep, __entry)
+
+/*
+ * Test and clear dirty bit in storage key.
+ * We can't clear the changed bit atomically. This is a potential
+ * race against modification of the referenced bit. This function
+ * should therefore only be called if it is not mapped in any
+ * address space.
+ */
+#define page_test_and_clear_dirty(_page)                                  \
+({                                                                        \
+        struct page *__page = (_page);                                    \
+        unsigned long __physpage = __pa((__page-mem_map) << PAGE_SHIFT);  \
+        int __skey = page_get_storage_key(__physpage);                    \
+        if (__skey & _PAGE_CHANGED)                                       \
+                page_set_storage_key(__physpage, __skey & ~_PAGE_CHANGED);\
+        (__skey & _PAGE_CHANGED);                                         \
+})
+
+/*
+ * Test and clear referenced bit in storage key.
+ */
+#define page_test_and_clear_young(page)                                   \
+({                                                                        \
+        struct page *__page = (page);                                     \
+        unsigned long __physpage = __pa((__page-mem_map) << PAGE_SHIFT);  \
+        int __ccode;                                                      \
+        asm volatile ("rrbe 0,%1\n\t"                                     \
+                      "ipm  %0\n\t"                                       \
+                      "srl  %0,28\n\t"                                    \
+                      : "=d" (__ccode) : "a" (__physpage) : "cc" );       \
+        (__ccode & 2);                                                    \
+})
+
+/*
+ * Conversion functions: convert a page and protection to a page entry,
+ * and a page entry and page directory to the page they refer to.
+ */
+static inline pte_t mk_pte_phys(unsigned long physpage, pgprot_t pgprot)
+{
+        pte_t __pte;
+        pte_val(__pte) = physpage + pgprot_val(pgprot);
+        return __pte;
+}
+
+#define mk_pte(pg, pgprot)                                                \
+({                                                                        \
+        struct page *__page = (pg);                                       \
+        pgprot_t __pgprot = (pgprot);                                     \
+        unsigned long __physpage = __pa((__page-mem_map) << PAGE_SHIFT);  \
+        pte_t __pte = mk_pte_phys(__physpage, __pgprot);                  \
+        __pte;                                                            \
+})
+
+#define pfn_pte(pfn, pgprot)                                              \
+({                                                                        \
+        pgprot_t __pgprot = (pgprot);                                     \
+        unsigned long __physpage = __pa((pfn) << PAGE_SHIFT);             \
+        pte_t __pte = mk_pte_phys(__physpage, __pgprot);                  \
+        __pte;                                                            \
+})
+
+#define SetPageUptodate(_page) \
+        do {                                                                  \
+                struct page *__page = (_page);                                \
+                if (!test_and_set_bit(PG_uptodate, &__page->flags))           \
+                        page_test_and_clear_dirty(_page);                     \
+        } while (0)
+
+#ifdef __s390x__
+
+#define pfn_pmd(pfn, pgprot)                                              \
+({                                                                        \
+        pgprot_t __pgprot = (pgprot);                                     \
+        unsigned long __physpage = __pa((pfn) << PAGE_SHIFT);             \
+        pmd_t __pmd = __pmd(__physpage + pgprot_val(__pgprot));           \
+        __pmd;                                                            \
+})
+
+#endif /* __s390x__ */
+
+#define pte_pfn(x) (pte_val(x) >> PAGE_SHIFT)
+#define pte_page(x) pfn_to_page(pte_pfn(x))
+
+#define pmd_page_kernel(pmd) (pmd_val(pmd) & PAGE_MASK)
+
+#define pmd_page(pmd) (mem_map+(pmd_val(pmd) >> PAGE_SHIFT))
+
+#define pgd_page_kernel(pgd) (pgd_val(pgd) & PAGE_MASK)
+
+/* to find an entry in a page-table-directory */
+#define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD-1))
+#define pgd_offset(mm, address) ((mm)->pgd+pgd_index(address))
+
+/* to find an entry in a kernel page-table-directory */
+#define pgd_offset_k(address) pgd_offset(&init_mm, address)
+
+#ifndef __s390x__
+
+/* Find an entry in the second-level page table.. */
+extern inline pmd_t * pmd_offset(pgd_t * dir, unsigned long address)
+{
+        return (pmd_t *) dir;
+}
+
+#else /* __s390x__ */
+
+/* Find an entry in the second-level page table.. */
+#define pmd_index(address) (((address) >> PMD_SHIFT) & (PTRS_PER_PMD-1))
+#define pmd_offset(dir,addr) \
+        ((pmd_t *) pgd_page_kernel(*(dir)) + pmd_index(addr))
+
+#endif /* __s390x__ */
+
+/* Find an entry in the third-level page table.. */
+#define pte_index(address) (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE-1))
+#define pte_offset_kernel(pmd, address) \
+        ((pte_t *) pmd_page_kernel(*(pmd)) + pte_index(address))
+#define pte_offset_map(pmd, address) pte_offset_kernel(pmd, address)
+#define pte_offset_map_nested(pmd, address) pte_offset_kernel(pmd, address)
+#define pte_unmap(pte) do { } while (0)
+#define pte_unmap_nested(pte) do { } while (0)
+
+/*
+ * 31 bit swap entry format:
+ * A page-table entry has some bits we have to treat in a special way.
+ * Bits 0, 20 and bit 23 have to be zero, otherwise an specification
+ * exception will occur instead of a page translation exception. The
+ * specifiation exception has the bad habit not to store necessary
+ * information in the lowcore.
+ * Bit 21 and bit 22 are the page invalid bit and the page protection
+ * bit. We set both to indicate a swapped page.
+ * Bit 30 and 31 are used to distinguish the different page types. For
+ * a swapped page these bits need to be zero.
+ * This leaves the bits 1-19 and bits 24-29 to store type and offset.
+ * We use the 5 bits from 25-29 for the type and the 20 bits from 1-19
+ * plus 24 for the offset.
+ * 0|     offset        |0110|o|type |00|
+ * 0 0000000001111111111 2222 2 22222 33
+ * 0 1234567890123456789 0123 4 56789 01
+ *
+ * 64 bit swap entry format:
+ * A page-table entry has some bits we have to treat in a special way.
+ * Bits 52 and bit 55 have to be zero, otherwise an specification
+ * exception will occur instead of a page translation exception. The
+ * specifiation exception has the bad habit not to store necessary
+ * information in the lowcore.
+ * Bit 53 and bit 54 are the page invalid bit and the page protection
+ * bit. We set both to indicate a swapped page.
+ * Bit 62 and 63 are used to distinguish the different page types. For
+ * a swapped page these bits need to be zero.
+ * This leaves the bits 0-51 and bits 56-61 to store type and offset.
+ * We use the 5 bits from 57-61 for the type and the 53 bits from 0-51
+ * plus 56 for the offset.
+ * |                      offset                        |0110|o|type |00|
+ *  0000000000111111111122222222223333333333444444444455 5555 5 55566 66
+ *  0123456789012345678901234567890123456789012345678901 2345 6 78901 23
+ */
+#ifndef __s390x__
+#define __SWP_OFFSET_MASK (~0UL >> 12)
+#else
+#define __SWP_OFFSET_MASK (~0UL >> 11)
+#endif
+extern inline pte_t mk_swap_pte(unsigned long type, unsigned long offset)
+{
+        pte_t pte;
+        offset &= __SWP_OFFSET_MASK;
+        pte_val(pte) = _PAGE_INVALID_SWAP | ((type & 0x1f) << 2) |
+                ((offset & 1UL) << 7) | ((offset & ~1UL) << 11);
+        return pte;
+}
+
+#define __swp_type(entry)       (((entry).val >> 2) & 0x1f)
+#define __swp_offset(entry)     (((entry).val >> 11) | (((entry).val >> 7) & 1))
+#define __swp_entry(type,offset) ((swp_entry_t) { pte_val(mk_swap_pte((type),(offset))) })
+
+#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) })
+#define __swp_entry_to_pte(x)   ((pte_t) { (x).val })
+
+#ifndef __s390x__
+# define PTE_FILE_MAX_BITS      26
+#else /* __s390x__ */
+# define PTE_FILE_MAX_BITS      59
+#endif /* __s390x__ */
+
+#define pte_to_pgoff(__pte) \
+        ((((__pte).pte >> 12) << 7) + (((__pte).pte >> 1) & 0x7f))
+
+#define pgoff_to_pte(__off) \
+        ((pte_t) { ((((__off) & 0x7f) << 1) + (((__off) >> 7) << 12)) \
+                   | _PAGE_INVALID_FILE })
+
+#endif /* !__ASSEMBLY__ */
+
+#define kern_addr_valid(addr)   (1)
+
+/*
+ * No page table caches to initialise
+ */
+#define pgtable_cache_init()    do { } while (0)
+
+#define __HAVE_ARCH_PTEP_ESTABLISH
+#define __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS
+#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG
+#define __HAVE_ARCH_PTEP_CLEAR_YOUNG_FLUSH
+#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY
+#define __HAVE_ARCH_PTEP_CLEAR_DIRTY_FLUSH
+#define __HAVE_ARCH_PTEP_GET_AND_CLEAR
+#define __HAVE_ARCH_PTEP_CLEAR_FLUSH
+#define __HAVE_ARCH_PTEP_SET_WRPROTECT
+#define __HAVE_ARCH_PTE_SAME
+#define __HAVE_ARCH_PAGE_TEST_AND_CLEAR_DIRTY
+#define __HAVE_ARCH_PAGE_TEST_AND_CLEAR_YOUNG
+#include <asm-generic/pgtable.h>
+
+#endif /* _S390_PAGE_H */
+
diff --git a/include/asm-s390/poll.h b/include/asm-s390/poll.h
new file mode 100644
index 000000000000..e90a5ca42061
--- /dev/null
+++ b/include/asm-s390/poll.h
@@ -0,0 +1,34 @@
+/*
+ *  include/asm-s390/poll.h
+ *
+ *  S390 version
+ *
+ *  Derived from "include/asm-i386/poll.h"
+ */
+
+#ifndef __S390_POLL_H
+#define __S390_POLL_H
+
+/* These are specified by iBCS2 */
+#define POLLIN          0x0001
+#define POLLPRI         0x0002
+#define POLLOUT         0x0004
+#define POLLERR         0x0008
+#define POLLHUP         0x0010
+#define POLLNVAL        0x0020
+
+/* The rest seem to be more-or-less nonstandard. Check them! */
+#define POLLRDNORM      0x0040
+#define POLLRDBAND      0x0080
+#define POLLWRNORM      0x0100
+#define POLLWRBAND      0x0200
+#define POLLMSG         0x0400
+#define POLLREMOVE      0x1000
+
+struct pollfd {
+        int fd;
+        short events;
+        short revents;
+};
+
+#endif
diff --git a/include/asm-s390/posix_types.h b/include/asm-s390/posix_types.h
new file mode 100644
index 000000000000..61788de3c0c3
--- /dev/null
+++ b/include/asm-s390/posix_types.h
@@ -0,0 +1,99 @@
+/*
+ *  include/asm-s390/posix_types.h
+ *
+ *  S390 version
+ *
+ *  Derived from "include/asm-i386/posix_types.h"
+ */
+
+#ifndef __ARCH_S390_POSIX_TYPES_H
+#define __ARCH_S390_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 long            __kernel_off_t;
+typedef int             __kernel_pid_t;
+typedef unsigned long   __kernel_size_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;
+
+#ifdef __GNUC__
+typedef long long       __kernel_loff_t;
+#endif
+
+#ifndef __s390x__
+
+typedef unsigned long   __kernel_ino_t;
+typedef unsigned short  __kernel_mode_t;
+typedef unsigned short  __kernel_nlink_t;
+typedef unsigned short  __kernel_ipc_pid_t;
+typedef unsigned short  __kernel_uid_t;
+typedef unsigned short  __kernel_gid_t;
+typedef int             __kernel_ssize_t;
+typedef int             __kernel_ptrdiff_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;
+
+#else /* __s390x__ */
+
+typedef unsigned int    __kernel_ino_t;
+typedef unsigned int    __kernel_mode_t;
+typedef unsigned int    __kernel_nlink_t;
+typedef int             __kernel_ipc_pid_t;
+typedef unsigned int    __kernel_uid_t;
+typedef unsigned int    __kernel_gid_t;
+typedef long            __kernel_ssize_t;
+typedef long            __kernel_ptrdiff_t;
+typedef unsigned long   __kernel_sigset_t;      /* at least 32 bits */
+typedef __kernel_uid_t __kernel_old_uid_t;
+typedef __kernel_gid_t __kernel_old_gid_t;
+typedef __kernel_uid_t __kernel_uid32_t;
+typedef __kernel_gid_t __kernel_gid32_t;
+typedef unsigned short __kernel_old_dev_t;
+
+#endif /* __s390x__ */
+
+typedef struct {
+#if defined(__KERNEL__) || defined(__USE_ALL)
+        int     val[2];
+#else                        /* !defined(__KERNEL__) && !defined(__USE_ALL)*/
+        int     __val[2];
+#endif                       /* !defined(__KERNEL__) && !defined(__USE_ALL)*/
+} __kernel_fsid_t;
+
+
+#if defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2)
+
+#ifndef _S390_BITOPS_H
+#include <asm/bitops.h>
+#endif
+
+#undef  __FD_SET
+#define __FD_SET(fd,fdsetp)  set_bit((fd),(fdsetp)->fds_bits)
+
+#undef  __FD_CLR
+#define __FD_CLR(fd,fdsetp)  clear_bit((fd),(fdsetp)->fds_bits)
+
+#undef  __FD_ISSET
+#define __FD_ISSET(fd,fdsetp)  test_bit((fd),(fdsetp)->fds_bits)
+
+#undef  __FD_ZERO
+#define __FD_ZERO(fdsetp) (memset ((fdsetp), 0, sizeof(*(fd_set *)(fdsetp))))
+
+#endif     /* defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2)*/
+
+#endif
diff --git a/include/asm-s390/processor.h b/include/asm-s390/processor.h
new file mode 100644
index 000000000000..cbbd11471672
--- /dev/null
+++ b/include/asm-s390/processor.h
@@ -0,0 +1,355 @@
+/*
+ *  include/asm-s390/processor.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Hartmut Penner (hp@de.ibm.com),
+ *               Martin Schwidefsky (schwidefsky@de.ibm.com)
+ *
+ *  Derived from "include/asm-i386/processor.h"
+ *    Copyright (C) 1994, Linus Torvalds
+ */
+
+#ifndef __ASM_S390_PROCESSOR_H
+#define __ASM_S390_PROCESSOR_H
+
+#include <asm/page.h>
+#include <asm/ptrace.h>
+
+#ifdef __KERNEL__
+/*
+ * Default implementation of macro that returns current
+ * instruction pointer ("program counter").
+ */
+#define current_text_addr() ({ void *pc; __asm__("basr %0,0":"=a"(pc)); pc; })
+
+/*
+ *  CPU type and hardware bug flags. Kept separately for each CPU.
+ *  Members of this structure are referenced in head.S, so think twice
+ *  before touching them. [mj]
+ */
+
+typedef struct
+{
+        unsigned int version :  8;
+        unsigned int ident   : 24;
+        unsigned int machine : 16;
+        unsigned int unused  : 16;
+} __attribute__ ((packed)) cpuid_t;
+
+struct cpuinfo_S390
+{
+        cpuid_t  cpu_id;
+        __u16    cpu_addr;
+        __u16    cpu_nr;
+        unsigned long loops_per_jiffy;
+        unsigned long *pgd_quick;
+#ifdef __s390x__
+        unsigned long *pmd_quick;
+#endif /* __s390x__ */
+        unsigned long *pte_quick;
+        unsigned long pgtable_cache_sz;
+};
+
+extern void print_cpu_info(struct cpuinfo_S390 *);
+
+/* Lazy FPU handling on uni-processor */
+extern struct task_struct *last_task_used_math;
+
+/*
+ * User space process size: 2GB for 31 bit, 4TB for 64 bit.
+ */
+#ifndef __s390x__
+
+# define TASK_SIZE              (0x80000000UL)
+# define TASK_UNMAPPED_BASE     (TASK_SIZE / 2)
+# define DEFAULT_TASK_SIZE      (0x80000000UL)
+
+#else /* __s390x__ */
+
+# define TASK_SIZE              (test_thread_flag(TIF_31BIT) ? \
+                                        (0x80000000UL) : (0x40000000000UL))
+# define TASK_UNMAPPED_BASE     (TASK_SIZE / 2)
+# define DEFAULT_TASK_SIZE      (0x40000000000UL)
+
+#endif /* __s390x__ */
+
+#define MM_VM_SIZE(mm)          DEFAULT_TASK_SIZE
+
+#define HAVE_ARCH_PICK_MMAP_LAYOUT
+
+typedef struct {
+        __u32 ar4;
+} mm_segment_t;
+
+/*
+ * Thread structure
+ */
+struct thread_struct {
+        s390_fp_regs fp_regs;
+        unsigned int  acrs[NUM_ACRS];
+        unsigned long ksp;              /* kernel stack pointer             */
+        unsigned long user_seg;         /* HSTD                             */
+        mm_segment_t mm_segment;
+        unsigned long prot_addr;        /* address of protection-excep.     */
+        unsigned int error_code;        /* error-code of last prog-excep.   */
+        unsigned int trap_no;
+        per_struct per_info;
+        /* Used to give failing instruction back to user for ieee exceptions */
+        unsigned long ieee_instruction_pointer; 
+        /* pfault_wait is used to block the process on a pfault event */
+        unsigned long pfault_wait;
+};
+
+typedef struct thread_struct thread_struct;
+
+/*
+ * Stack layout of a C stack frame.
+ */
+#ifndef __PACK_STACK
+struct stack_frame {
+        unsigned long back_chain;
+        unsigned long empty1[5];
+        unsigned long gprs[10];
+        unsigned int  empty2[8];
+};
+#else
+struct stack_frame {
+        unsigned long empty1[5];
+        unsigned int  empty2[8];
+        unsigned long gprs[10];
+        unsigned long back_chain;
+};
+#endif
+
+#define ARCH_MIN_TASKALIGN      8
+
+#ifndef __s390x__
+# define __SWAPPER_PG_DIR __pa(&swapper_pg_dir[0]) + _SEGMENT_TABLE
+#else /* __s390x__ */
+# define __SWAPPER_PG_DIR __pa(&swapper_pg_dir[0]) + _REGION_TABLE
+#endif /* __s390x__ */
+
+#define INIT_THREAD {{0,{{0},{0},{0},{0},{0},{0},{0},{0},{0},{0},              \
+                            {0},{0},{0},{0},{0},{0}}},                         \
+                     {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},         \
+                     sizeof(init_stack) + (unsigned long) &init_stack,         \
+                     __SWAPPER_PG_DIR,                                         \
+                     {0},                                                      \
+                     0,0,0,                                                    \
+                     (per_struct) {{{{0,}}},0,0,0,0,{{0,}}},                   \
+                     0, 0                                                      \
+} 
+
+/*
+ * Do necessary setup to start up a new thread.
+ */
+#ifndef __s390x__
+
+#define start_thread(regs, new_psw, new_stackp) do {            \
+        regs->psw.mask  = PSW_USER_BITS;                        \
+        regs->psw.addr  = new_psw | PSW_ADDR_AMODE;             \
+        regs->gprs[15]  = new_stackp ;                          \
+} while (0)
+
+#else /* __s390x__ */
+
+#define start_thread(regs, new_psw, new_stackp) do {            \
+        regs->psw.mask  = PSW_USER_BITS;                        \
+        regs->psw.addr  = new_psw;                              \
+        regs->gprs[15]  = new_stackp;                           \
+} while (0)
+
+#define start_thread31(regs, new_psw, new_stackp) do {          \
+        regs->psw.mask  = PSW_USER32_BITS;                      \
+        regs->psw.addr  = new_psw;                              \
+        regs->gprs[15]  = new_stackp;                           \
+} while (0)
+
+#endif /* __s390x__ */
+
+/* Forward declaration, a strange C thing */
+struct task_struct;
+struct mm_struct;
+
+/* Free all resources held by a thread. */
+extern void release_thread(struct task_struct *);
+extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags);
+
+/* Prepare to copy thread state - unlazy all lazy status */
+#define prepare_to_copy(tsk)    do { } while (0)
+
+/*
+ * Return saved PC of a blocked thread.
+ */
+extern unsigned long thread_saved_pc(struct task_struct *t);
+
+/*
+ * Print register of task into buffer. Used in fs/proc/array.c.
+ */
+extern char *task_show_regs(struct task_struct *task, char *buffer);
+
+extern void show_registers(struct pt_regs *regs);
+extern void show_trace(struct task_struct *task, unsigned long *sp);
+
+unsigned long get_wchan(struct task_struct *p);
+#define __KSTK_PTREGS(tsk) ((struct pt_regs *) \
+        ((unsigned long) tsk->thread_info + THREAD_SIZE - sizeof(struct pt_regs)))
+#define KSTK_EIP(tsk)   (__KSTK_PTREGS(tsk)->psw.addr)
+#define KSTK_ESP(tsk)   (__KSTK_PTREGS(tsk)->gprs[15])
+
+/*
+ * Give up the time slice of the virtual PU.
+ */
+#ifndef __s390x__
+# define cpu_relax()    asm volatile ("diag 0,0,68" : : : "memory")
+#else /* __s390x__ */
+# define cpu_relax() \
+        asm volatile ("ex 0,%0" : : "i" (__LC_DIAG44_OPCODE) : "memory")
+#endif /* __s390x__ */
+
+/*
+ * Set PSW mask to specified value, while leaving the
+ * PSW addr pointing to the next instruction.
+ */
+
+static inline void __load_psw_mask (unsigned long mask)
+{
+        unsigned long addr;
+
+        psw_t psw;
+        psw.mask = mask;
+
+#ifndef __s390x__
+        asm volatile (
+                "    basr %0,0\n"
+                "0:  ahi  %0,1f-0b\n"
+                "    st   %0,4(%1)\n"
+                "    lpsw 0(%1)\n"
+                "1:"
+                : "=&d" (addr) : "a" (&psw), "m" (psw) : "memory", "cc" );
+#else /* __s390x__ */
+        asm volatile (
+                "    larl  %0,1f\n"
+                "    stg   %0,8(%1)\n"
+                "    lpswe 0(%1)\n"
+                "1:"
+                : "=&d" (addr) : "a" (&psw), "m" (psw) : "memory", "cc" );
+#endif /* __s390x__ */
+}
+ 
+/*
+ * Function to stop a processor until an interruption occurred
+ */
+static inline void enabled_wait(void)
+{
+        unsigned long reg;
+        psw_t wait_psw;
+
+        wait_psw.mask = PSW_BASE_BITS | PSW_MASK_IO | PSW_MASK_EXT |
+                PSW_MASK_MCHECK | PSW_MASK_WAIT;
+#ifndef __s390x__
+        asm volatile (
+                "    basr %0,0\n"
+                "0:  la   %0,1f-0b(%0)\n"
+                "    st   %0,4(%1)\n"
+                "    oi   4(%1),0x80\n"
+                "    lpsw 0(%1)\n"
+                "1:"
+                : "=&a" (reg) : "a" (&wait_psw), "m" (wait_psw)
+                : "memory", "cc" );
+#else /* __s390x__ */
+        asm volatile (
+                "    larl  %0,0f\n"
+                "    stg   %0,8(%1)\n"
+                "    lpswe 0(%1)\n"
+                "0:"
+                : "=&a" (reg) : "a" (&wait_psw), "m" (wait_psw)
+                : "memory", "cc" );
+#endif /* __s390x__ */
+}
+
+/*
+ * Function to drop a processor into disabled wait state
+ */
+
+static inline void disabled_wait(unsigned long code)
+{
+        char psw_buffer[2*sizeof(psw_t)];
+        unsigned long ctl_buf;
+        psw_t *dw_psw = (psw_t *)(((unsigned long) &psw_buffer+sizeof(psw_t)-1)
+                                  & -sizeof(psw_t));
+
+        dw_psw->mask = PSW_BASE_BITS | PSW_MASK_WAIT;
+        dw_psw->addr = code;
+        /* 
+         * Store status and then load disabled wait psw,
+         * the processor is dead afterwards
+         */
+#ifndef __s390x__
+        asm volatile ("    stctl 0,0,0(%2)\n"
+                      "    ni    0(%2),0xef\n" /* switch off protection */
+                      "    lctl  0,0,0(%2)\n"
+                      "    stpt  0xd8\n"       /* store timer */
+                      "    stckc 0xe0\n"       /* store clock comparator */
+                      "    stpx  0x108\n"      /* store prefix register */
+                      "    stam  0,15,0x120\n" /* store access registers */
+                      "    std   0,0x160\n"    /* store f0 */
+                      "    std   2,0x168\n"    /* store f2 */
+                      "    std   4,0x170\n"    /* store f4 */
+                      "    std   6,0x178\n"    /* store f6 */
+                      "    stm   0,15,0x180\n" /* store general registers */
+                      "    stctl 0,15,0x1c0\n" /* store control registers */
+                      "    oi    0x1c0,0x10\n" /* fake protection bit */
+                      "    lpsw 0(%1)"
+                      : "=m" (ctl_buf)
+                      : "a" (dw_psw), "a" (&ctl_buf), "m" (dw_psw) : "cc" );
+#else /* __s390x__ */
+        asm volatile ("    stctg 0,0,0(%2)\n"
+                      "    ni    4(%2),0xef\n" /* switch off protection */
+                      "    lctlg 0,0,0(%2)\n"
+                      "    lghi  1,0x1000\n"
+                      "    stpt  0x328(1)\n"      /* store timer */
+                      "    stckc 0x330(1)\n"      /* store clock comparator */
+                      "    stpx  0x318(1)\n"      /* store prefix register */
+                      "    stam  0,15,0x340(1)\n" /* store access registers */
+                      "    stfpc 0x31c(1)\n"      /* store fpu control */
+                      "    std   0,0x200(1)\n"    /* store f0 */
+                      "    std   1,0x208(1)\n"    /* store f1 */
+                      "    std   2,0x210(1)\n"    /* store f2 */
+                      "    std   3,0x218(1)\n"    /* store f3 */
+                      "    std   4,0x220(1)\n"    /* store f4 */
+                      "    std   5,0x228(1)\n"    /* store f5 */
+                      "    std   6,0x230(1)\n"    /* store f6 */
+                      "    std   7,0x238(1)\n"    /* store f7 */
+                      "    std   8,0x240(1)\n"    /* store f8 */
+                      "    std   9,0x248(1)\n"    /* store f9 */
+                      "    std   10,0x250(1)\n"   /* store f10 */
+                      "    std   11,0x258(1)\n"   /* store f11 */
+                      "    std   12,0x260(1)\n"   /* store f12 */
+                      "    std   13,0x268(1)\n"   /* store f13 */
+                      "    std   14,0x270(1)\n"   /* store f14 */
+                      "    std   15,0x278(1)\n"   /* store f15 */
+                      "    stmg  0,15,0x280(1)\n" /* store general registers */
+                      "    stctg 0,15,0x380(1)\n" /* store control registers */
+                      "    oi    0x384(1),0x10\n" /* fake protection bit */
+                      "    lpswe 0(%1)"
+                      : "=m" (ctl_buf)
+                      : "a" (dw_psw), "a" (&ctl_buf),
+                        "m" (dw_psw) : "cc", "0", "1");
+#endif /* __s390x__ */
+}
+
+/*
+ * CPU idle notifier chain.
+ */
+#define CPU_IDLE        0
+#define CPU_NOT_IDLE    1
+
+struct notifier_block;
+int register_idle_notifier(struct notifier_block *nb);
+int unregister_idle_notifier(struct notifier_block *nb);
+
+#endif
+
+#endif                                 /* __ASM_S390_PROCESSOR_H           */
diff --git a/include/asm-s390/ptrace.h b/include/asm-s390/ptrace.h
new file mode 100644
index 000000000000..1dc80666e97e
--- /dev/null
+++ b/include/asm-s390/ptrace.h
@@ -0,0 +1,475 @@
+/*
+ *  include/asm-s390/ptrace.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999,2000 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com)
+ */
+
+#ifndef _S390_PTRACE_H
+#define _S390_PTRACE_H
+
+/*
+ * Offsets in the user_regs_struct. They are used for the ptrace
+ * system call and in entry.S
+ */
+#ifndef __s390x__
+
+#define PT_PSWMASK  0x00
+#define PT_PSWADDR  0x04
+#define PT_GPR0     0x08
+#define PT_GPR1     0x0C
+#define PT_GPR2     0x10
+#define PT_GPR3     0x14
+#define PT_GPR4     0x18
+#define PT_GPR5     0x1C
+#define PT_GPR6     0x20
+#define PT_GPR7     0x24
+#define PT_GPR8     0x28
+#define PT_GPR9     0x2C
+#define PT_GPR10    0x30
+#define PT_GPR11    0x34
+#define PT_GPR12    0x38
+#define PT_GPR13    0x3C
+#define PT_GPR14    0x40
+#define PT_GPR15    0x44
+#define PT_ACR0     0x48
+#define PT_ACR1     0x4C
+#define PT_ACR2     0x50
+#define PT_ACR3     0x54
+#define PT_ACR4     0x58
+#define PT_ACR5     0x5C
+#define PT_ACR6     0x60
+#define PT_ACR7     0x64
+#define PT_ACR8     0x68
+#define PT_ACR9     0x6C
+#define PT_ACR10    0x70
+#define PT_ACR11    0x74
+#define PT_ACR12    0x78
+#define PT_ACR13    0x7C
+#define PT_ACR14    0x80
+#define PT_ACR15    0x84
+#define PT_ORIGGPR2 0x88
+#define PT_FPC      0x90
+/*
+ * A nasty fact of life that the ptrace api
+ * only supports passing of longs.
+ */
+#define PT_FPR0_HI  0x98
+#define PT_FPR0_LO  0x9C
+#define PT_FPR1_HI  0xA0
+#define PT_FPR1_LO  0xA4
+#define PT_FPR2_HI  0xA8
+#define PT_FPR2_LO  0xAC
+#define PT_FPR3_HI  0xB0
+#define PT_FPR3_LO  0xB4
+#define PT_FPR4_HI  0xB8
+#define PT_FPR4_LO  0xBC
+#define PT_FPR5_HI  0xC0
+#define PT_FPR5_LO  0xC4
+#define PT_FPR6_HI  0xC8
+#define PT_FPR6_LO  0xCC
+#define PT_FPR7_HI  0xD0
+#define PT_FPR7_LO  0xD4
+#define PT_FPR8_HI  0xD8
+#define PT_FPR8_LO  0XDC
+#define PT_FPR9_HI  0xE0
+#define PT_FPR9_LO  0xE4
+#define PT_FPR10_HI 0xE8
+#define PT_FPR10_LO 0xEC
+#define PT_FPR11_HI 0xF0
+#define PT_FPR11_LO 0xF4
+#define PT_FPR12_HI 0xF8
+#define PT_FPR12_LO 0xFC
+#define PT_FPR13_HI 0x100
+#define PT_FPR13_LO 0x104
+#define PT_FPR14_HI 0x108
+#define PT_FPR14_LO 0x10C
+#define PT_FPR15_HI 0x110
+#define PT_FPR15_LO 0x114
+#define PT_CR_9     0x118
+#define PT_CR_10    0x11C
+#define PT_CR_11    0x120
+#define PT_IEEE_IP  0x13C
+#define PT_LASTOFF  PT_IEEE_IP
+#define PT_ENDREGS  0x140-1
+
+#define GPR_SIZE        4
+#define CR_SIZE         4
+
+#define STACK_FRAME_OVERHEAD    96      /* size of minimum stack frame */
+
+#else /* __s390x__ */
+
+#define PT_PSWMASK  0x00
+#define PT_PSWADDR  0x08
+#define PT_GPR0     0x10
+#define PT_GPR1     0x18
+#define PT_GPR2     0x20
+#define PT_GPR3     0x28
+#define PT_GPR4     0x30
+#define PT_GPR5     0x38
+#define PT_GPR6     0x40
+#define PT_GPR7     0x48
+#define PT_GPR8     0x50
+#define PT_GPR9     0x58
+#define PT_GPR10    0x60
+#define PT_GPR11    0x68
+#define PT_GPR12    0x70
+#define PT_GPR13    0x78
+#define PT_GPR14    0x80
+#define PT_GPR15    0x88
+#define PT_ACR0     0x90
+#define PT_ACR1     0x94
+#define PT_ACR2     0x98
+#define PT_ACR3     0x9C
+#define PT_ACR4     0xA0
+#define PT_ACR5     0xA4
+#define PT_ACR6     0xA8
+#define PT_ACR7     0xAC
+#define PT_ACR8     0xB0
+#define PT_ACR9     0xB4
+#define PT_ACR10    0xB8
+#define PT_ACR11    0xBC
+#define PT_ACR12    0xC0
+#define PT_ACR13    0xC4
+#define PT_ACR14    0xC8
+#define PT_ACR15    0xCC
+#define PT_ORIGGPR2 0xD0
+#define PT_FPC      0xD8
+#define PT_FPR0     0xE0
+#define PT_FPR1     0xE8
+#define PT_FPR2     0xF0
+#define PT_FPR3     0xF8
+#define PT_FPR4     0x100
+#define PT_FPR5     0x108
+#define PT_FPR6     0x110
+#define PT_FPR7     0x118
+#define PT_FPR8     0x120
+#define PT_FPR9     0x128
+#define PT_FPR10    0x130
+#define PT_FPR11    0x138
+#define PT_FPR12    0x140
+#define PT_FPR13    0x148
+#define PT_FPR14    0x150
+#define PT_FPR15    0x158
+#define PT_CR_9     0x160
+#define PT_CR_10    0x168
+#define PT_CR_11    0x170
+#define PT_IEEE_IP  0x1A8
+#define PT_LASTOFF  PT_IEEE_IP
+#define PT_ENDREGS  0x1B0-1
+
+#define GPR_SIZE        8
+#define CR_SIZE         8
+
+#define STACK_FRAME_OVERHEAD    160      /* size of minimum stack frame */
+
+#endif /* __s390x__ */
+
+#define NUM_GPRS        16
+#define NUM_FPRS        16
+#define NUM_CRS         16
+#define NUM_ACRS        16
+
+#define FPR_SIZE        8
+#define FPC_SIZE        4
+#define FPC_PAD_SIZE    4 /* gcc insists on aligning the fpregs */
+#define ACR_SIZE        4
+
+
+#define PTRACE_OLDSETOPTIONS         21
+
+#ifndef __ASSEMBLY__
+#include <linux/config.h>
+#include <linux/stddef.h>
+#include <linux/types.h>
+#include <asm/setup.h>
+
+typedef union
+{
+        float   f;
+        double  d;
+        __u64   ui;
+        struct
+        {
+                __u32 hi;
+                __u32 lo;
+        } fp;
+} freg_t;
+
+typedef struct
+{
+        __u32   fpc;
+        freg_t  fprs[NUM_FPRS];              
+} s390_fp_regs;
+
+#define FPC_EXCEPTION_MASK      0xF8000000
+#define FPC_FLAGS_MASK          0x00F80000
+#define FPC_DXC_MASK            0x0000FF00
+#define FPC_RM_MASK             0x00000003
+#define FPC_VALID_MASK          0xF8F8FF03
+
+/* this typedef defines how a Program Status Word looks like */
+typedef struct 
+{
+        unsigned long mask;
+        unsigned long addr;
+} __attribute__ ((aligned(8))) psw_t;
+
+#ifndef __s390x__
+
+#define PSW_MASK_PER            0x40000000UL
+#define PSW_MASK_DAT            0x04000000UL
+#define PSW_MASK_IO             0x02000000UL
+#define PSW_MASK_EXT            0x01000000UL
+#define PSW_MASK_KEY            0x00F00000UL
+#define PSW_MASK_MCHECK         0x00040000UL
+#define PSW_MASK_WAIT           0x00020000UL
+#define PSW_MASK_PSTATE         0x00010000UL
+#define PSW_MASK_ASC            0x0000C000UL
+#define PSW_MASK_CC             0x00003000UL
+#define PSW_MASK_PM             0x00000F00UL
+
+#define PSW_ADDR_AMODE          0x80000000UL
+#define PSW_ADDR_INSN           0x7FFFFFFFUL
+
+#define PSW_BASE_BITS           0x00080000UL
+
+#define PSW_ASC_PRIMARY         0x00000000UL
+#define PSW_ASC_ACCREG          0x00004000UL
+#define PSW_ASC_SECONDARY       0x00008000UL
+#define PSW_ASC_HOME            0x0000C000UL
+
+#else /* __s390x__ */
+
+#define PSW_MASK_PER            0x4000000000000000UL
+#define PSW_MASK_DAT            0x0400000000000000UL
+#define PSW_MASK_IO             0x0200000000000000UL
+#define PSW_MASK_EXT            0x0100000000000000UL
+#define PSW_MASK_KEY            0x00F0000000000000UL
+#define PSW_MASK_MCHECK         0x0004000000000000UL
+#define PSW_MASK_WAIT           0x0002000000000000UL
+#define PSW_MASK_PSTATE         0x0001000000000000UL
+#define PSW_MASK_ASC            0x0000C00000000000UL
+#define PSW_MASK_CC             0x0000300000000000UL
+#define PSW_MASK_PM             0x00000F0000000000UL
+
+#define PSW_ADDR_AMODE          0x0000000000000000UL
+#define PSW_ADDR_INSN           0xFFFFFFFFFFFFFFFFUL
+
+#define PSW_BASE_BITS           0x0000000180000000UL
+#define PSW_BASE32_BITS         0x0000000080000000UL
+
+#define PSW_ASC_PRIMARY         0x0000000000000000UL
+#define PSW_ASC_ACCREG          0x0000400000000000UL
+#define PSW_ASC_SECONDARY       0x0000800000000000UL
+#define PSW_ASC_HOME            0x0000C00000000000UL
+
+#define PSW_USER32_BITS (PSW_BASE32_BITS | PSW_MASK_DAT | PSW_ASC_HOME | \
+                         PSW_MASK_IO | PSW_MASK_EXT | PSW_MASK_MCHECK | \
+                         PSW_MASK_PSTATE)
+
+#endif /* __s390x__ */
+
+#define PSW_KERNEL_BITS (PSW_BASE_BITS | PSW_MASK_DAT | PSW_ASC_PRIMARY)
+#define PSW_USER_BITS   (PSW_BASE_BITS | PSW_MASK_DAT | PSW_ASC_HOME | \
+                         PSW_MASK_IO | PSW_MASK_EXT | PSW_MASK_MCHECK | \
+                         PSW_MASK_PSTATE)
+
+/* This macro merges a NEW PSW mask specified by the user into
+   the currently active PSW mask CURRENT, modifying only those
+   bits in CURRENT that the user may be allowed to change: this
+   is the condition code and the program mask bits.  */
+#define PSW_MASK_MERGE(CURRENT,NEW) \
+        (((CURRENT) & ~(PSW_MASK_CC|PSW_MASK_PM)) | \
+         ((NEW) & (PSW_MASK_CC|PSW_MASK_PM)))
+
+/*
+ * The s390_regs structure is used to define the elf_gregset_t.
+ */
+typedef struct
+{
+        psw_t psw;
+        unsigned long gprs[NUM_GPRS];
+        unsigned int  acrs[NUM_ACRS];
+        unsigned long orig_gpr2;
+} s390_regs;
+
+#ifdef __KERNEL__
+/*
+ * The pt_regs struct defines the way the registers are stored on
+ * the stack during a system call.
+ */
+struct pt_regs 
+{
+        unsigned long args[1];
+        psw_t psw;
+        unsigned long gprs[NUM_GPRS];
+        unsigned long orig_gpr2;
+        unsigned short ilc;
+        unsigned short trap;
+};
+#endif
+
+/*
+ * Now for the program event recording (trace) definitions.
+ */
+typedef struct
+{
+        unsigned long cr[3];
+} per_cr_words;
+
+#define PER_EM_MASK 0xE8000000UL
+
+typedef struct
+{
+#ifdef __s390x__
+        unsigned                       : 32;
+#endif /* __s390x__ */
+        unsigned em_branching          : 1;
+        unsigned em_instruction_fetch  : 1;
+        /*
+         * Switching on storage alteration automatically fixes
+         * the storage alteration event bit in the users std.
+         */
+        unsigned em_storage_alteration : 1;
+        unsigned em_gpr_alt_unused     : 1;
+        unsigned em_store_real_address : 1;
+        unsigned                       : 3;
+        unsigned branch_addr_ctl       : 1;
+        unsigned                       : 1;
+        unsigned storage_alt_space_ctl : 1;
+        unsigned                       : 21;
+        unsigned long starting_addr;
+        unsigned long ending_addr;
+} per_cr_bits;
+
+typedef struct
+{
+        unsigned short perc_atmid;
+        unsigned long address;
+        unsigned char access_id;
+} per_lowcore_words;
+
+typedef struct
+{
+        unsigned perc_branching          : 1;
+        unsigned perc_instruction_fetch  : 1;
+        unsigned perc_storage_alteration : 1;
+        unsigned perc_gpr_alt_unused     : 1;
+        unsigned perc_store_real_address : 1;
+        unsigned                         : 3;
+        unsigned atmid_psw_bit_31        : 1;
+        unsigned atmid_validity_bit      : 1;
+        unsigned atmid_psw_bit_32        : 1;
+        unsigned atmid_psw_bit_5         : 1;
+        unsigned atmid_psw_bit_16        : 1;
+        unsigned atmid_psw_bit_17        : 1;
+        unsigned si                      : 2;
+        unsigned long address;
+        unsigned                         : 4;
+        unsigned access_id               : 4;
+} per_lowcore_bits;
+
+typedef struct
+{
+        union {
+                per_cr_words   words;
+                per_cr_bits    bits;
+        } control_regs;
+        /*
+         * Use these flags instead of setting em_instruction_fetch
+         * directly they are used so that single stepping can be
+         * switched on & off while not affecting other tracing
+         */
+        unsigned  single_step       : 1;
+        unsigned  instruction_fetch : 1;
+        unsigned                    : 30;
+        /*
+         * These addresses are copied into cr10 & cr11 if single
+         * stepping is switched off
+         */
+        unsigned long starting_addr;
+        unsigned long ending_addr;
+        union {
+                per_lowcore_words words;
+                per_lowcore_bits  bits;
+        } lowcore; 
+} per_struct;
+
+typedef struct
+{
+        unsigned int  len;
+        unsigned long kernel_addr;
+        unsigned long process_addr;
+} ptrace_area;
+
+/*
+ * S/390 specific non posix ptrace requests. I chose unusual values so
+ * they are unlikely to clash with future ptrace definitions.
+ */
+#define PTRACE_PEEKUSR_AREA           0x5000
+#define PTRACE_POKEUSR_AREA           0x5001
+#define PTRACE_PEEKTEXT_AREA          0x5002
+#define PTRACE_PEEKDATA_AREA          0x5003
+#define PTRACE_POKETEXT_AREA          0x5004
+#define PTRACE_POKEDATA_AREA          0x5005
+
+/*
+ * PT_PROT definition is loosely based on hppa bsd definition in
+ * gdb/hppab-nat.c
+ */
+#define PTRACE_PROT                       21
+
+typedef enum
+{
+        ptprot_set_access_watchpoint,
+        ptprot_set_write_watchpoint,
+        ptprot_disable_watchpoint
+} ptprot_flags;
+
+typedef struct
+{
+        unsigned long lowaddr;
+        unsigned long hiaddr;
+        ptprot_flags prot;
+} ptprot_area;                     
+
+/* Sequence of bytes for breakpoint illegal instruction.  */
+#define S390_BREAKPOINT     {0x0,0x1}
+#define S390_BREAKPOINT_U16 ((__u16)0x0001)
+#define S390_SYSCALL_OPCODE ((__u16)0x0a00)
+#define S390_SYSCALL_SIZE   2
+
+/*
+ * The user_regs_struct defines the way the user registers are
+ * store on the stack for signal handling.
+ */
+struct user_regs_struct
+{
+        psw_t psw;
+        unsigned long gprs[NUM_GPRS];
+        unsigned int  acrs[NUM_ACRS];
+        unsigned long orig_gpr2;
+        s390_fp_regs fp_regs;
+        /*
+         * These per registers are in here so that gdb can modify them
+         * itself as there is no "official" ptrace interface for hardware
+         * watchpoints. This is the way intel does it.
+         */
+        per_struct per_info;
+        unsigned long ieee_instruction_pointer; 
+        /* Used to give failing instruction back to user for ieee exceptions */
+};
+
+#ifdef __KERNEL__
+#define user_mode(regs) (((regs)->psw.mask & PSW_MASK_PSTATE) != 0)
+#define instruction_pointer(regs) ((regs)->psw.addr & PSW_ADDR_INSN)
+#define profile_pc(regs) instruction_pointer(regs)
+extern void show_regs(struct pt_regs * regs);
+#endif
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _S390_PTRACE_H */
diff --git a/include/asm-s390/qdio.h b/include/asm-s390/qdio.h
new file mode 100644
index 000000000000..0ddf0a8ef8de
--- /dev/null
+++ b/include/asm-s390/qdio.h
@@ -0,0 +1,401 @@
+/*
+ * linux/include/asm/qdio.h
+ *
+ * Linux for S/390 QDIO base support, Hipersocket base support
+ * version 2
+ *
+ * Copyright 2000,2002 IBM Corporation
+ * Author(s): Utz Bacher <utz.bacher@de.ibm.com>
+ *
+ */
+#ifndef __QDIO_H__
+#define __QDIO_H__
+
+#define VERSION_QDIO_H "$Revision: 1.57 $"
+
+/* note, that most of the typedef's are from ingo. */
+
+#include <linux/interrupt.h>
+#include <asm/cio.h>
+#include <asm/ccwdev.h>
+
+#define QDIO_NAME "qdio "
+
+#ifndef __s390x__
+#define QDIO_32_BIT
+#endif /* __s390x__ */
+
+/**** CONSTANTS, that are relied on without using these symbols *****/
+#define QDIO_MAX_QUEUES_PER_IRQ 32 /* used in width of unsigned int */
+/************************ END of CONSTANTS **************************/
+#define QDIO_MAX_BUFFERS_PER_Q 128 /* must be a power of 2 (%x=&(x-1)*/
+#define QDIO_BUF_ORDER 7 /* 2**this == number of pages used for sbals in 1 q */
+#define QDIO_MAX_ELEMENTS_PER_BUFFER 16
+#define SBAL_SIZE 256
+
+#define QDIO_QETH_QFMT 0
+#define QDIO_ZFCP_QFMT 1
+#define QDIO_IQDIO_QFMT 2
+
+struct qdio_buffer_element{
+        unsigned int flags;
+        unsigned int length;
+#ifdef QDIO_32_BIT
+        void *reserved;
+#endif /* QDIO_32_BIT */
+        void *addr;
+} __attribute__ ((packed,aligned(16)));
+
+struct qdio_buffer{
+        volatile struct qdio_buffer_element element[16];
+} __attribute__ ((packed,aligned(256)));
+
+
+/* params are: ccw_device, status, qdio_error, siga_error,
+   queue_number, first element processed, number of elements processed,
+   int_parm */
+typedef void qdio_handler_t(struct ccw_device *,unsigned int,unsigned int,
+                            unsigned int,unsigned int,int,int,unsigned long);
+
+
+#define QDIO_STATUS_INBOUND_INT 0x01
+#define QDIO_STATUS_OUTBOUND_INT 0x02
+#define QDIO_STATUS_LOOK_FOR_ERROR 0x04
+#define QDIO_STATUS_MORE_THAN_ONE_QDIO_ERROR 0x08
+#define QDIO_STATUS_MORE_THAN_ONE_SIGA_ERROR 0x10
+#define QDIO_STATUS_ACTIVATE_CHECK_CONDITION 0x20
+
+#define QDIO_SIGA_ERROR_ACCESS_EXCEPTION 0x10
+#define QDIO_SIGA_ERROR_B_BIT_SET 0x20
+
+/* for qdio_initialize */
+#define QDIO_INBOUND_0COPY_SBALS 0x01
+#define QDIO_OUTBOUND_0COPY_SBALS 0x02
+#define QDIO_USE_OUTBOUND_PCIS 0x04
+
+/* for qdio_cleanup */
+#define QDIO_FLAG_CLEANUP_USING_CLEAR 0x01
+#define QDIO_FLAG_CLEANUP_USING_HALT 0x02
+
+struct qdio_initialize {
+        struct ccw_device *cdev;
+        unsigned char q_format;
+        unsigned char adapter_name[8];
+        unsigned int qib_param_field_format; /*adapter dependent*/
+        /* pointer to 128 bytes or NULL, if no param field */
+        unsigned char *qib_param_field; /* adapter dependent */
+        /* pointer to no_queues*128 words of data or NULL */
+        unsigned long *input_slib_elements;
+        unsigned long *output_slib_elements;
+        unsigned int min_input_threshold;
+        unsigned int max_input_threshold;
+        unsigned int min_output_threshold;
+        unsigned int max_output_threshold;
+        unsigned int no_input_qs;
+        unsigned int no_output_qs;
+        qdio_handler_t *input_handler;
+        qdio_handler_t *output_handler;
+        unsigned long int_parm;
+        unsigned long flags;
+        void **input_sbal_addr_array; /* addr of n*128 void ptrs */
+        void **output_sbal_addr_array; /* addr of n*128 void ptrs */
+};
+
+extern int qdio_initialize(struct qdio_initialize *init_data);
+extern int qdio_allocate(struct qdio_initialize *init_data);
+extern int qdio_establish(struct qdio_initialize *init_data);
+
+extern int qdio_activate(struct ccw_device *,int flags);
+
+#define QDIO_STATE_MUST_USE_OUTB_PCI    0x00000001
+#define QDIO_STATE_INACTIVE             0x00000002 /* after qdio_cleanup */
+#define QDIO_STATE_ESTABLISHED          0x00000004 /* after qdio_initialize */
+#define QDIO_STATE_ACTIVE               0x00000008 /* after qdio_activate */
+#define QDIO_STATE_STOPPED              0x00000010 /* after queues went down */
+extern unsigned long qdio_get_status(int irq);
+
+
+#define QDIO_FLAG_SYNC_INPUT     0x01
+#define QDIO_FLAG_SYNC_OUTPUT    0x02
+#define QDIO_FLAG_UNDER_INTERRUPT 0x04
+#define QDIO_FLAG_NO_INPUT_INTERRUPT_CONTEXT 0x08 /* no effect on
+                                                     adapter interrupts */
+#define QDIO_FLAG_DONT_SIGA 0x10
+
+extern int do_QDIO(struct ccw_device*, unsigned int flags, 
+                   unsigned int queue_number,
+                   unsigned int qidx,unsigned int count,
+                   struct qdio_buffer *buffers);
+
+extern int qdio_synchronize(struct ccw_device*, unsigned int flags,
+                            unsigned int queue_number);
+
+extern int qdio_cleanup(struct ccw_device*, int how);
+extern int qdio_shutdown(struct ccw_device*, int how);
+extern int qdio_free(struct ccw_device*);
+
+unsigned char qdio_get_slsb_state(struct ccw_device*, unsigned int flag,
+                                  unsigned int queue_number,
+                                  unsigned int qidx);
+
+extern void qdio_init_scrubber(void);
+
+struct qdesfmt0 {
+#ifdef QDIO_32_BIT
+        unsigned long res1;             /* reserved */
+#endif /* QDIO_32_BIT */
+        unsigned long sliba;            /* storage-list-information-block
+                                           address */
+#ifdef QDIO_32_BIT
+        unsigned long res2;             /* reserved */
+#endif /* QDIO_32_BIT */
+        unsigned long sla;              /* storage-list address */
+#ifdef QDIO_32_BIT
+        unsigned long res3;             /* reserved */
+#endif /* QDIO_32_BIT */
+        unsigned long slsba;            /* storage-list-state-block address */
+        unsigned int  res4;             /* reserved */
+        unsigned int  akey  :  4;       /* access key for DLIB */
+        unsigned int  bkey  :  4;       /* access key for SL */
+        unsigned int  ckey  :  4;       /* access key for SBALs */
+        unsigned int  dkey  :  4;       /* access key for SLSB */
+        unsigned int  res5  : 16;       /* reserved */
+} __attribute__ ((packed));
+
+/*
+ * Queue-Description record (QDR)
+ */
+struct qdr {
+        unsigned int  qfmt    :  8;     /* queue format */
+        unsigned int  pfmt    :  8;     /* impl. dep. parameter format */
+        unsigned int  res1    :  8;     /* reserved */
+        unsigned int  ac      :  8;     /* adapter characteristics */
+        unsigned int  res2    :  8;     /* reserved */
+        unsigned int  iqdcnt  :  8;     /* input-queue-descriptor count */
+        unsigned int  res3    :  8;     /* reserved */
+        unsigned int  oqdcnt  :  8;     /* output-queue-descriptor count */
+        unsigned int  res4    :  8;     /* reserved */
+        unsigned int  iqdsz   :  8;     /* input-queue-descriptor size */
+        unsigned int  res5    :  8;     /* reserved */
+        unsigned int  oqdsz   :  8;     /* output-queue-descriptor size */
+        unsigned int  res6[9];          /* reserved */
+#ifdef QDIO_32_BIT
+        unsigned long res7;             /* reserved */
+#endif /* QDIO_32_BIT */
+        unsigned long qiba;             /* queue-information-block address */
+        unsigned int  res8;             /* reserved */
+        unsigned int  qkey    :  4;     /* queue-informatio-block key */
+        unsigned int  res9    : 28;     /* reserved */
+/*      union _qd {*/ /* why this? */
+                struct qdesfmt0 qdf0[126];
+/*      } qd;*/
+} __attribute__ ((packed,aligned(4096)));
+
+
+/*
+ * queue information block (QIB)
+ */
+#define QIB_AC_INBOUND_PCI_SUPPORTED 0x80
+#define QIB_AC_OUTBOUND_PCI_SUPPORTED 0x40
+struct qib {
+        unsigned int  qfmt    :  8;     /* queue format */
+        unsigned int  pfmt    :  8;     /* impl. dep. parameter format */
+        unsigned int  res1    :  8;     /* reserved */
+        unsigned int  ac      :  8;     /* adapter characteristics */
+        unsigned int  res2;             /* reserved */
+#ifdef QDIO_32_BIT
+        unsigned long res3;             /* reserved */
+#endif /* QDIO_32_BIT */
+        unsigned long isliba;           /* absolute address of 1st
+                                           input SLIB */
+#ifdef QDIO_32_BIT
+        unsigned long res4;             /* reserved */
+#endif /* QDIO_32_BIT */
+        unsigned long osliba;           /* absolute address of 1st
+                                           output SLIB */
+        unsigned int  res5;             /* reserved */
+        unsigned int  res6;             /* reserved */
+        unsigned char ebcnam[8];        /* adapter identifier in EBCDIC */
+        unsigned char res7[88];         /* reserved */
+        unsigned char parm[QDIO_MAX_BUFFERS_PER_Q];
+                                        /* implementation dependent
+                                           parameters */
+} __attribute__ ((packed,aligned(256)));
+
+
+/*
+ * storage-list-information block element (SLIBE)
+ */
+struct slibe {
+#ifdef QDIO_32_BIT
+        unsigned long res;              /* reserved */
+#endif /* QDIO_32_BIT */
+        unsigned long parms;            /* implementation dependent
+                                           parameters */
+};
+
+/*
+ * storage-list-information block (SLIB)
+ */
+struct slib {
+#ifdef QDIO_32_BIT
+        unsigned long res1;             /* reserved */
+#endif /* QDIO_32_BIT */
+        unsigned long nsliba;           /* next SLIB address (if any) */
+#ifdef QDIO_32_BIT
+        unsigned long res2;             /* reserved */
+#endif /* QDIO_32_BIT */
+        unsigned long sla;              /* SL address */
+#ifdef QDIO_32_BIT
+        unsigned long res3;             /* reserved */
+#endif /* QDIO_32_BIT */
+        unsigned long slsba;            /* SLSB address */
+        unsigned char res4[1000];       /* reserved */
+        struct slibe slibe[QDIO_MAX_BUFFERS_PER_Q];    /* SLIB elements */
+} __attribute__ ((packed,aligned(2048)));
+
+struct sbal_flags {
+        unsigned char res1  : 1;   /* reserved */
+        unsigned char last  : 1;   /* last entry */
+        unsigned char cont  : 1;   /* contiguous storage */
+        unsigned char res2  : 1;   /* reserved */
+        unsigned char frag  : 2;   /* fragmentation (s.below) */
+        unsigned char res3  : 2;   /* reserved */
+} __attribute__ ((packed));
+
+#define SBAL_FLAGS_FIRST_FRAG        0x04000000UL
+#define SBAL_FLAGS_MIDDLE_FRAG       0x08000000UL
+#define SBAL_FLAGS_LAST_FRAG         0x0c000000UL
+#define SBAL_FLAGS_LAST_ENTRY        0x40000000UL
+#define SBAL_FLAGS_CONTIGUOUS        0x20000000UL
+
+#define SBAL_FLAGS0_DATA_CONTINUATION 0x20UL
+
+/* Awesome OpenFCP extensions */
+#define SBAL_FLAGS0_TYPE_STATUS       0x00UL
+#define SBAL_FLAGS0_TYPE_WRITE        0x08UL
+#define SBAL_FLAGS0_TYPE_READ         0x10UL
+#define SBAL_FLAGS0_TYPE_WRITE_READ   0x18UL
+#define SBAL_FLAGS0_MORE_SBALS        0x04UL
+#define SBAL_FLAGS0_COMMAND           0x02UL
+#define SBAL_FLAGS0_LAST_SBAL         0x00UL
+#define SBAL_FLAGS0_ONLY_SBAL         SBAL_FLAGS0_COMMAND
+#define SBAL_FLAGS0_MIDDLE_SBAL       SBAL_FLAGS0_MORE_SBALS
+#define SBAL_FLAGS0_FIRST_SBAL        SBAL_FLAGS0_MORE_SBALS | SBAL_FLAGS0_COMMAND
+/* Naught of interest beyond this point */
+
+#define SBAL_FLAGS0_PCI         0x40
+struct sbal_sbalf_0 {
+        unsigned char res1  : 1;   /* reserved */
+        unsigned char pci   : 1;   /* PCI indicator */
+        unsigned char cont  : 1;   /* data continuation */
+        unsigned char sbtype: 2;   /* storage-block type (OpenFCP) */
+        unsigned char res2  : 3;   /* reserved */
+} __attribute__ ((packed));
+
+struct sbal_sbalf_1 {
+        unsigned char res1  : 4;   /* reserved */
+        unsigned char key   : 4;   /* storage key */
+} __attribute__ ((packed));
+
+struct sbal_sbalf_14 {
+        unsigned char res1   : 4;  /* reserved */
+        unsigned char erridx : 4;  /* error index */
+} __attribute__ ((packed));
+
+struct sbal_sbalf_15 {
+        unsigned char reason;      /* reserved */
+} __attribute__ ((packed));
+
+union sbal_sbalf {
+        struct sbal_sbalf_0  i0;
+        struct sbal_sbalf_1  i1;
+        struct sbal_sbalf_14 i14;
+        struct sbal_sbalf_15 i15;
+        unsigned char value;
+};
+
+struct sbal_element {
+        union {
+                struct sbal_flags  bits;       /* flags */
+                unsigned char value;
+        } flags;
+        unsigned int  res1  : 16;   /* reserved */
+        union sbal_sbalf  sbalf;       /* SBAL flags */
+        unsigned int  res2  : 16;  /* reserved */
+        unsigned int  count : 16;  /* data count */
+#ifdef QDIO_32_BIT
+        unsigned long res3;        /* reserved */
+#endif /* QDIO_32_BIT */
+        unsigned long addr;        /* absolute data address */
+} __attribute__ ((packed,aligned(16)));
+
+/*
+ * strorage-block access-list (SBAL)
+ */
+struct sbal {
+        struct sbal_element element[QDIO_MAX_ELEMENTS_PER_BUFFER];
+} __attribute__ ((packed,aligned(256)));
+
+/*
+ * storage-list (SL)
+ */
+struct sl_element {
+#ifdef QDIO_32_BIT
+        unsigned long res;     /* reserved */
+#endif /* QDIO_32_BIT */
+        unsigned long sbal;    /* absolute SBAL address */
+} __attribute__ ((packed));
+
+struct sl {
+        struct sl_element element[QDIO_MAX_BUFFERS_PER_Q];
+} __attribute__ ((packed,aligned(1024)));
+
+/*
+ * storage-list-state block (SLSB)
+ */
+struct slsb_flags {
+        unsigned char owner  : 2;   /* SBAL owner */
+        unsigned char type   : 1;   /* buffer type */
+        unsigned char state  : 5;   /* processing state */
+} __attribute__ ((packed));
+
+
+struct slsb {
+        union {
+                unsigned char val[QDIO_MAX_BUFFERS_PER_Q];
+                struct slsb_flags flags[QDIO_MAX_BUFFERS_PER_Q];
+        } acc;
+} __attribute__ ((packed,aligned(256)));
+
+/*
+ * SLSB values
+ */
+#define SLSB_OWNER_PROG              1
+#define SLSB_OWNER_CU                2
+
+#define SLSB_TYPE_INPUT              0
+#define SLSB_TYPE_OUTPUT             1
+
+#define SLSB_STATE_NOT_INIT          0
+#define SLSB_STATE_EMPTY             1
+#define SLSB_STATE_PRIMED            2
+#define SLSB_STATE_HALTED          0xe
+#define SLSB_STATE_ERROR           0xf
+
+#define SLSB_P_INPUT_NOT_INIT     0x80
+#define SLSB_P_INPUT_PROCESSING   0x81
+#define SLSB_CU_INPUT_EMPTY       0x41
+#define SLSB_P_INPUT_PRIMED       0x82
+#define SLSB_P_INPUT_HALTED       0x8E
+#define SLSB_P_INPUT_ERROR        0x8F
+
+#define SLSB_P_OUTPUT_NOT_INIT    0xA0
+#define SLSB_P_OUTPUT_EMPTY       0xA1
+#define SLSB_CU_OUTPUT_PRIMED     0x62
+#define SLSB_P_OUTPUT_HALTED      0xAE
+#define SLSB_P_OUTPUT_ERROR       0xAF
+
+#define SLSB_ERROR_DURING_LOOKUP  0xFF
+
+#endif /* __QDIO_H__ */
diff --git a/include/asm-s390/qeth.h b/include/asm-s390/qeth.h
new file mode 100644
index 000000000000..930d378ef75a
--- /dev/null
+++ b/include/asm-s390/qeth.h
@@ -0,0 +1,78 @@
+/*
+ * include/asm-s390/qeth.h
+ *
+ * ioctl definitions for qeth driver
+ *
+ * Copyright (C) 2004 IBM Corporation
+ *
+ * Author(s):   Thomas Spatzier <tspat@de.ibm.com>
+ *
+ */
+#ifndef __ASM_S390_QETH_IOCTL_H__
+#define __ASM_S390_QETH_IOCTL_H__
+#include <linux/ioctl.h>
+
+#define SIOC_QETH_ARP_SET_NO_ENTRIES    (SIOCDEVPRIVATE)
+#define SIOC_QETH_ARP_QUERY_INFO        (SIOCDEVPRIVATE + 1)
+#define SIOC_QETH_ARP_ADD_ENTRY         (SIOCDEVPRIVATE + 2)
+#define SIOC_QETH_ARP_REMOVE_ENTRY      (SIOCDEVPRIVATE + 3)
+#define SIOC_QETH_ARP_FLUSH_CACHE       (SIOCDEVPRIVATE + 4)
+#define SIOC_QETH_ADP_SET_SNMP_CONTROL  (SIOCDEVPRIVATE + 5)
+#define SIOC_QETH_GET_CARD_TYPE         (SIOCDEVPRIVATE + 6)
+
+struct qeth_arp_cache_entry {
+        __u8  macaddr[6];
+        __u8  reserved1[2];
+        __u8  ipaddr[16]; /* for both  IPv4 and IPv6 */
+        __u8  reserved2[32];
+} __attribute__ ((packed));
+
+struct qeth_arp_qi_entry7 {
+        __u8 media_specific[32];
+        __u8 macaddr_type;
+        __u8 ipaddr_type;
+        __u8 macaddr[6];
+        __u8 ipaddr[4];
+} __attribute__((packed));
+
+struct qeth_arp_qi_entry7_short {
+        __u8 macaddr_type;
+        __u8 ipaddr_type;
+        __u8 macaddr[6];
+        __u8 ipaddr[4];
+} __attribute__((packed));
+
+struct qeth_arp_qi_entry5 {
+        __u8 media_specific[32];
+        __u8 macaddr_type;
+        __u8 ipaddr_type;
+        __u8 ipaddr[4];
+} __attribute__((packed));
+
+struct qeth_arp_qi_entry5_short {
+        __u8 macaddr_type;
+        __u8 ipaddr_type;
+        __u8 ipaddr[4];
+} __attribute__((packed));
+
+/*
+ * can be set by user if no "media specific information" is wanted
+ * -> saves a lot of space in user space buffer
+ */
+#define QETH_QARP_STRIP_ENTRIES  0x8000
+#define QETH_QARP_REQUEST_MASK   0x00ff
+
+/* data sent to user space as result of query arp ioctl */
+#define QETH_QARP_USER_DATA_SIZE 20000
+#define QETH_QARP_MASK_OFFSET    4
+#define QETH_QARP_ENTRIES_OFFSET 6
+struct qeth_arp_query_user_data {
+        union {
+                __u32 data_len;         /* set by user space program */
+                __u32 no_entries;       /* set by kernel */
+        } u;
+        __u16 mask_bits;
+        char *entries;
+} __attribute__((packed));
+
+#endif /* __ASM_S390_QETH_IOCTL_H__ */
diff --git a/include/asm-s390/resource.h b/include/asm-s390/resource.h
new file mode 100644
index 000000000000..366c01de04f2
--- /dev/null
+++ b/include/asm-s390/resource.h
@@ -0,0 +1,15 @@
+/*
+ *  include/asm-s390/resource.h
+ *
+ *  S390 version
+ *
+ *  Derived from "include/asm-i386/resources.h"
+ */
+
+#ifndef _S390_RESOURCE_H
+#define _S390_RESOURCE_H
+
+#include <asm-generic/resource.h>
+
+#endif
+
diff --git a/include/asm-s390/rwsem.h b/include/asm-s390/rwsem.h
new file mode 100644
index 000000000000..8c0cebbfc034
--- /dev/null
+++ b/include/asm-s390/rwsem.h
@@ -0,0 +1,355 @@
+#ifndef _S390_RWSEM_H
+#define _S390_RWSEM_H
+
+/*
+ *  include/asm-s390/rwsem.h
+ *
+ *  S390 version
+ *    Copyright (C) 2002 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
+ *
+ *  Based on asm-alpha/semaphore.h and asm-i386/rwsem.h
+ */
+
+/*
+ *
+ * The MSW of the count is the negated number of active writers and waiting
+ * lockers, and the LSW is the total number of active locks
+ *
+ * The lock count is initialized to 0 (no active and no waiting lockers).
+ *
+ * When a writer subtracts WRITE_BIAS, it'll get 0xffff0001 for the case of an
+ * uncontended lock. This can be determined because XADD returns the old value.
+ * Readers increment by 1 and see a positive value when uncontended, negative
+ * if there are writers (and maybe) readers waiting (in which case it goes to
+ * sleep).
+ *
+ * The value of WAITING_BIAS supports up to 32766 waiting processes. This can
+ * be extended to 65534 by manually checking the whole MSW rather than relying
+ * on the S flag.
+ *
+ * The value of ACTIVE_BIAS supports up to 65535 active processes.
+ *
+ * This should be totally fair - if anything is waiting, a process that wants a
+ * lock will go to the back of the queue. When the currently active lock is
+ * released, if there's a writer at the front of the queue, then that and only
+ * that will be woken up; if there's a bunch of consequtive readers at the
+ * front, then they'll all be woken up, but no other readers will be.
+ */
+
+#ifndef _LINUX_RWSEM_H
+#error "please don't include asm/rwsem.h directly, use linux/rwsem.h instead"
+#endif
+
+#ifdef __KERNEL__
+
+#include <linux/list.h>
+#include <linux/spinlock.h>
+
+struct rwsem_waiter;
+
+extern struct rw_semaphore *rwsem_down_read_failed(struct rw_semaphore *);
+extern struct rw_semaphore *rwsem_down_write_failed(struct rw_semaphore *);
+extern struct rw_semaphore *rwsem_wake(struct rw_semaphore *);
+extern struct rw_semaphore *rwsem_downgrade_wake(struct rw_semaphore *);
+extern struct rw_semaphore *rwsem_downgrade_write(struct rw_semaphore *);
+
+/*
+ * the semaphore definition
+ */
+struct rw_semaphore {
+        signed long             count;
+        spinlock_t              wait_lock;
+        struct list_head        wait_list;
+};
+
+#ifndef __s390x__
+#define RWSEM_UNLOCKED_VALUE    0x00000000
+#define RWSEM_ACTIVE_BIAS       0x00000001
+#define RWSEM_ACTIVE_MASK       0x0000ffff
+#define RWSEM_WAITING_BIAS      (-0x00010000)
+#else /* __s390x__ */
+#define RWSEM_UNLOCKED_VALUE    0x0000000000000000L
+#define RWSEM_ACTIVE_BIAS       0x0000000000000001L
+#define RWSEM_ACTIVE_MASK       0x00000000ffffffffL
+#define RWSEM_WAITING_BIAS      (-0x0000000100000000L)
+#endif /* __s390x__ */
+#define RWSEM_ACTIVE_READ_BIAS  RWSEM_ACTIVE_BIAS
+#define RWSEM_ACTIVE_WRITE_BIAS (RWSEM_WAITING_BIAS + RWSEM_ACTIVE_BIAS)
+
+/*
+ * initialisation
+ */
+#define __RWSEM_INITIALIZER(name) \
+{ RWSEM_UNLOCKED_VALUE, SPIN_LOCK_UNLOCKED, LIST_HEAD_INIT((name).wait_list) }
+
+#define DECLARE_RWSEM(name) \
+        struct rw_semaphore name = __RWSEM_INITIALIZER(name)
+
+static inline void init_rwsem(struct rw_semaphore *sem)
+{
+        sem->count = RWSEM_UNLOCKED_VALUE;
+        spin_lock_init(&sem->wait_lock);
+        INIT_LIST_HEAD(&sem->wait_list);
+}
+
+/*
+ * lock for reading
+ */
+static inline void __down_read(struct rw_semaphore *sem)
+{
+        signed long old, new;
+
+        __asm__ __volatile__(
+#ifndef __s390x__
+                "   l    %0,0(%3)\n"
+                "0: lr   %1,%0\n"
+                "   ahi  %1,%5\n"
+                "   cs   %0,%1,0(%3)\n"
+                "   jl   0b"
+#else /* __s390x__ */
+                "   lg   %0,0(%3)\n"
+                "0: lgr  %1,%0\n"
+                "   aghi %1,%5\n"
+                "   csg  %0,%1,0(%3)\n"
+                "   jl   0b"
+#endif /* __s390x__ */
+                : "=&d" (old), "=&d" (new), "=m" (sem->count)
+                : "a" (&sem->count), "m" (sem->count),
+                  "i" (RWSEM_ACTIVE_READ_BIAS) : "cc", "memory" );
+        if (old < 0)
+                rwsem_down_read_failed(sem);
+}
+
+/*
+ * trylock for reading -- returns 1 if successful, 0 if contention
+ */
+static inline int __down_read_trylock(struct rw_semaphore *sem)
+{
+        signed long old, new;
+
+        __asm__ __volatile__(
+#ifndef __s390x__
+                "   l    %0,0(%3)\n"
+                "0: ltr  %1,%0\n"
+                "   jm   1f\n"
+                "   ahi  %1,%5\n"
+                "   cs   %0,%1,0(%3)\n"
+                "   jl   0b\n"
+                "1:"
+#else /* __s390x__ */
+                "   lg   %0,0(%3)\n"
+                "0: ltgr %1,%0\n"
+                "   jm   1f\n"
+                "   aghi %1,%5\n"
+                "   csg  %0,%1,0(%3)\n"
+                "   jl   0b\n"
+                "1:"
+#endif /* __s390x__ */
+                : "=&d" (old), "=&d" (new), "=m" (sem->count)
+                : "a" (&sem->count), "m" (sem->count),
+                  "i" (RWSEM_ACTIVE_READ_BIAS) : "cc", "memory" );
+        return old >= 0 ? 1 : 0;
+}
+
+/*
+ * lock for writing
+ */
+static inline void __down_write(struct rw_semaphore *sem)
+{
+        signed long old, new, tmp;
+
+        tmp = RWSEM_ACTIVE_WRITE_BIAS;
+        __asm__ __volatile__(
+#ifndef __s390x__
+                "   l    %0,0(%3)\n"
+                "0: lr   %1,%0\n"
+                "   a    %1,%5\n"
+                "   cs   %0,%1,0(%3)\n"
+                "   jl   0b"
+#else /* __s390x__ */
+                "   lg   %0,0(%3)\n"
+                "0: lgr  %1,%0\n"
+                "   ag   %1,%5\n"
+                "   csg  %0,%1,0(%3)\n"
+                "   jl   0b"
+#endif /* __s390x__ */
+                : "=&d" (old), "=&d" (new), "=m" (sem->count)
+                : "a" (&sem->count), "m" (sem->count), "m" (tmp)
+                : "cc", "memory" );
+        if (old != 0)
+                rwsem_down_write_failed(sem);
+}
+
+/*
+ * trylock for writing -- returns 1 if successful, 0 if contention
+ */
+static inline int __down_write_trylock(struct rw_semaphore *sem)
+{
+        signed long old;
+
+        __asm__ __volatile__(
+#ifndef __s390x__
+                "   l    %0,0(%2)\n"
+                "0: ltr  %0,%0\n"
+                "   jnz  1f\n"
+                "   cs   %0,%4,0(%2)\n"
+                "   jl   0b\n"
+#else /* __s390x__ */
+                "   lg   %0,0(%2)\n"
+                "0: ltgr %0,%0\n"
+                "   jnz  1f\n"
+                "   csg  %0,%4,0(%2)\n"
+                "   jl   0b\n"
+#endif /* __s390x__ */
+                "1:"
+                : "=&d" (old), "=m" (sem->count)
+                : "a" (&sem->count), "m" (sem->count),
+                  "d" (RWSEM_ACTIVE_WRITE_BIAS) : "cc", "memory" );
+        return (old == RWSEM_UNLOCKED_VALUE) ? 1 : 0;
+}
+
+/*
+ * unlock after reading
+ */
+static inline void __up_read(struct rw_semaphore *sem)
+{
+        signed long old, new;
+
+        __asm__ __volatile__(
+#ifndef __s390x__
+                "   l    %0,0(%3)\n"
+                "0: lr   %1,%0\n"
+                "   ahi  %1,%5\n"
+                "   cs   %0,%1,0(%3)\n"
+                "   jl   0b"
+#else /* __s390x__ */
+                "   lg   %0,0(%3)\n"
+                "0: lgr  %1,%0\n"
+                "   aghi %1,%5\n"
+                "   csg  %0,%1,0(%3)\n"
+                "   jl   0b"
+#endif /* __s390x__ */
+                : "=&d" (old), "=&d" (new), "=m" (sem->count)
+                : "a" (&sem->count), "m" (sem->count),
+                  "i" (-RWSEM_ACTIVE_READ_BIAS)
+                : "cc", "memory" );
+        if (new < 0)
+                if ((new & RWSEM_ACTIVE_MASK) == 0)
+                        rwsem_wake(sem);
+}
+
+/*
+ * unlock after writing
+ */
+static inline void __up_write(struct rw_semaphore *sem)
+{
+        signed long old, new, tmp;
+
+        tmp = -RWSEM_ACTIVE_WRITE_BIAS;
+        __asm__ __volatile__(
+#ifndef __s390x__
+                "   l    %0,0(%3)\n"
+                "0: lr   %1,%0\n"
+                "   a    %1,%5\n"
+                "   cs   %0,%1,0(%3)\n"
+                "   jl   0b"
+#else /* __s390x__ */
+                "   lg   %0,0(%3)\n"
+                "0: lgr  %1,%0\n"
+                "   ag   %1,%5\n"
+                "   csg  %0,%1,0(%3)\n"
+                "   jl   0b"
+#endif /* __s390x__ */
+                : "=&d" (old), "=&d" (new), "=m" (sem->count)
+                : "a" (&sem->count), "m" (sem->count), "m" (tmp)
+                : "cc", "memory" );
+        if (new < 0)
+                if ((new & RWSEM_ACTIVE_MASK) == 0)
+                        rwsem_wake(sem);
+}
+
+/*
+ * downgrade write lock to read lock
+ */
+static inline void __downgrade_write(struct rw_semaphore *sem)
+{
+        signed long old, new, tmp;
+
+        tmp = -RWSEM_WAITING_BIAS;
+        __asm__ __volatile__(
+#ifndef __s390x__
+                "   l    %0,0(%3)\n"
+                "0: lr   %1,%0\n"
+                "   a    %1,%5\n"
+                "   cs   %0,%1,0(%3)\n"
+                "   jl   0b"
+#else /* __s390x__ */
+                "   lg   %0,0(%3)\n"
+                "0: lgr  %1,%0\n"
+                "   ag   %1,%5\n"
+                "   csg  %0,%1,0(%3)\n"
+                "   jl   0b"
+#endif /* __s390x__ */
+                : "=&d" (old), "=&d" (new), "=m" (sem->count)
+                : "a" (&sem->count), "m" (sem->count), "m" (tmp)
+                : "cc", "memory" );
+        if (new > 1)
+                rwsem_downgrade_wake(sem);
+}
+
+/*
+ * implement atomic add functionality
+ */
+static inline void rwsem_atomic_add(long delta, struct rw_semaphore *sem)
+{
+        signed long old, new;
+
+        __asm__ __volatile__(
+#ifndef __s390x__
+                "   l    %0,0(%3)\n"
+                "0: lr   %1,%0\n"
+                "   ar   %1,%5\n"
+                "   cs   %0,%1,0(%3)\n"
+                "   jl   0b"
+#else /* __s390x__ */
+                "   lg   %0,0(%3)\n"
+                "0: lgr  %1,%0\n"
+                "   agr  %1,%5\n"
+                "   csg  %0,%1,0(%3)\n"
+                "   jl   0b"
+#endif /* __s390x__ */
+                : "=&d" (old), "=&d" (new), "=m" (sem->count)
+                : "a" (&sem->count), "m" (sem->count), "d" (delta)
+                : "cc", "memory" );
+}
+
+/*
+ * implement exchange and add functionality
+ */
+static inline long rwsem_atomic_update(long delta, struct rw_semaphore *sem)
+{
+        signed long old, new;
+
+        __asm__ __volatile__(
+#ifndef __s390x__
+                "   l    %0,0(%3)\n"
+                "0: lr   %1,%0\n"
+                "   ar   %1,%5\n"
+                "   cs   %0,%1,0(%3)\n"
+                "   jl   0b"
+#else /* __s390x__ */
+                "   lg   %0,0(%3)\n"
+                "0: lgr  %1,%0\n"
+                "   agr  %1,%5\n"
+                "   csg  %0,%1,0(%3)\n"
+                "   jl   0b"
+#endif /* __s390x__ */
+                : "=&d" (old), "=&d" (new), "=m" (sem->count)
+                : "a" (&sem->count), "m" (sem->count), "d" (delta)
+                : "cc", "memory" );
+        return new;
+}
+
+#endif /* __KERNEL__ */
+#endif /* _S390_RWSEM_H */
diff --git a/include/asm-s390/s390_ext.h b/include/asm-s390/s390_ext.h
new file mode 100644
index 000000000000..e9a2862b230d
--- /dev/null
+++ b/include/asm-s390/s390_ext.h
@@ -0,0 +1,34 @@
+#ifndef _S390_EXTINT_H
+#define _S390_EXTINT_H
+
+/*
+ *  include/asm-s390/s390_ext.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999,2000 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Holger Smolinski (Holger.Smolinski@de.ibm.com),
+ *               Martin Schwidefsky (schwidefsky@de.ibm.com)
+ */
+
+typedef void (*ext_int_handler_t)(struct pt_regs *regs, __u16 code);
+
+/*
+ * Warning: if you change ext_int_info_t you have to change the
+ * external interrupt handler in entry.S too.
+ */ 
+typedef struct ext_int_info_t {
+        struct ext_int_info_t *next;
+        ext_int_handler_t handler;
+        __u16 code;
+} __attribute__ ((packed)) ext_int_info_t;
+
+extern ext_int_info_t *ext_int_hash[];
+
+int register_external_interrupt(__u16 code, ext_int_handler_t handler);
+int register_early_external_interrupt(__u16 code, ext_int_handler_t handler,
+                                      ext_int_info_t *info);
+int unregister_external_interrupt(__u16 code, ext_int_handler_t handler);
+int unregister_early_external_interrupt(__u16 code, ext_int_handler_t handler,
+                                        ext_int_info_t *info);
+
+#endif
diff --git a/include/asm-s390/scatterlist.h b/include/asm-s390/scatterlist.h
new file mode 100644
index 000000000000..a43b3afc5e2d
--- /dev/null
+++ b/include/asm-s390/scatterlist.h
@@ -0,0 +1,16 @@
+#ifndef _ASMS390_SCATTERLIST_H
+#define _ASMS390_SCATTERLIST_H
+
+struct scatterlist {
+    struct page *page;
+    unsigned int offset;
+    unsigned int length;
+};
+
+#ifdef __s390x__
+#define ISA_DMA_THRESHOLD (0xffffffffffffffffUL)
+#else
+#define ISA_DMA_THRESHOLD (0xffffffffUL)
+#endif
+
+#endif /* _ASMS390X_SCATTERLIST_H */
diff --git a/include/asm-s390/sections.h b/include/asm-s390/sections.h
new file mode 100644
index 000000000000..3a0b8ffeab7a
--- /dev/null
+++ b/include/asm-s390/sections.h
@@ -0,0 +1,6 @@
+#ifndef _S390_SECTIONS_H
+#define _S390_SECTIONS_H
+
+#include <asm-generic/sections.h>
+
+#endif
diff --git a/include/asm-s390/segment.h b/include/asm-s390/segment.h
new file mode 100644
index 000000000000..8bfce3475b1c
--- /dev/null
+++ b/include/asm-s390/segment.h
@@ -0,0 +1,4 @@
+#ifndef _ASM_SEGMENT_H
+#define _ASM_SEGMENT_H
+
+#endif
diff --git a/include/asm-s390/semaphore.h b/include/asm-s390/semaphore.h
new file mode 100644
index 000000000000..873def6f363a
--- /dev/null
+++ b/include/asm-s390/semaphore.h
@@ -0,0 +1,110 @@
+/*
+ *  include/asm-s390/semaphore.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *
+ *  Derived from "include/asm-i386/semaphore.h"
+ *    (C) Copyright 1996 Linus Torvalds
+ */
+
+#ifndef _S390_SEMAPHORE_H
+#define _S390_SEMAPHORE_H
+
+#include <asm/system.h>
+#include <asm/atomic.h>
+#include <linux/wait.h>
+#include <linux/rwsem.h>
+
+struct semaphore {
+        /*
+         * Note that any negative value of count is equivalent to 0,
+         * but additionally indicates that some process(es) might be
+         * sleeping on `wait'.
+         */
+        atomic_t count;
+        wait_queue_head_t wait;
+};
+
+#define __SEMAPHORE_INITIALIZER(name,count) \
+        { ATOMIC_INIT(count), __WAIT_QUEUE_HEAD_INITIALIZER((name).wait) }
+
+#define __MUTEX_INITIALIZER(name) \
+        __SEMAPHORE_INITIALIZER(name,1)
+
+#define __DECLARE_SEMAPHORE_GENERIC(name,count) \
+        struct semaphore name = __SEMAPHORE_INITIALIZER(name,count)
+
+#define DECLARE_MUTEX(name) __DECLARE_SEMAPHORE_GENERIC(name,1)
+#define DECLARE_MUTEX_LOCKED(name) __DECLARE_SEMAPHORE_GENERIC(name,0)
+
+static inline void sema_init (struct semaphore *sem, int val)
+{
+        *sem = (struct semaphore) __SEMAPHORE_INITIALIZER((*sem),val);
+}
+
+static inline void init_MUTEX (struct semaphore *sem)
+{
+        sema_init(sem, 1);
+}
+
+static inline void init_MUTEX_LOCKED (struct semaphore *sem)
+{
+        sema_init(sem, 0);
+}
+
+asmlinkage void __down(struct semaphore * sem);
+asmlinkage int  __down_interruptible(struct semaphore * sem);
+asmlinkage int  __down_trylock(struct semaphore * sem);
+asmlinkage void __up(struct semaphore * sem);
+
+static inline void down(struct semaphore * sem)
+{
+        might_sleep();
+        if (atomic_dec_return(&sem->count) < 0)
+                __down(sem);
+}
+
+static inline int down_interruptible(struct semaphore * sem)
+{
+        int ret = 0;
+
+        might_sleep();
+        if (atomic_dec_return(&sem->count) < 0)
+                ret = __down_interruptible(sem);
+        return ret;
+}
+
+static inline int down_trylock(struct semaphore * sem)
+{
+        int old_val, new_val;
+
+        /*
+         * This inline assembly atomically implements the equivalent
+         * to the following C code:
+         *   old_val = sem->count.counter;
+         *   if ((new_val = old_val) > 0)
+         *       sem->count.counter = --new_val;
+         * In the ppc code this is called atomic_dec_if_positive.
+         */
+        __asm__ __volatile__ (
+                "   l    %0,0(%3)\n"
+                "0: ltr  %1,%0\n"
+                "   jle  1f\n"
+                "   ahi  %1,-1\n"
+                "   cs   %0,%1,0(%3)\n"
+                "   jl   0b\n"
+                "1:"
+                : "=&d" (old_val), "=&d" (new_val), "=m" (sem->count.counter)
+                : "a" (&sem->count.counter), "m" (sem->count.counter)
+                : "cc", "memory" );
+        return old_val <= 0;
+}
+
+static inline void up(struct semaphore * sem)
+{
+        if (atomic_inc_return(&sem->count) <= 0)
+                __up(sem);
+}
+
+#endif
diff --git a/include/asm-s390/sembuf.h b/include/asm-s390/sembuf.h
new file mode 100644
index 000000000000..32626b0cac4b
--- /dev/null
+++ b/include/asm-s390/sembuf.h
@@ -0,0 +1,29 @@
+#ifndef _S390_SEMBUF_H
+#define _S390_SEMBUF_H
+
+/* 
+ * The semid64_ds structure for S/390 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 (for !__s390x__)
+ * - 2 miscellaneous 32-bit values
+ */
+
+struct semid64_ds {
+        struct ipc64_perm sem_perm;             /* permissions .. see ipc.h */
+        __kernel_time_t sem_otime;              /* last semop time */
+#ifndef __s390x__
+        unsigned long   __unused1;
+#endif /* ! __s390x__ */
+        __kernel_time_t sem_ctime;              /* last change time */
+#ifndef __s390x__
+        unsigned long   __unused2;
+#endif /* ! __s390x__ */
+        unsigned long   sem_nsems;              /* no. of semaphores in array */
+        unsigned long   __unused3;
+        unsigned long   __unused4;
+};
+
+#endif /* _S390_SEMBUF_H */
diff --git a/include/asm-s390/setup.h b/include/asm-s390/setup.h
new file mode 100644
index 000000000000..0d51c484c2ea
--- /dev/null
+++ b/include/asm-s390/setup.h
@@ -0,0 +1,82 @@
+/*
+ *  include/asm-s390/setup.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ */
+
+#ifndef _ASM_S390_SETUP_H
+#define _ASM_S390_SETUP_H
+
+#define PARMAREA                0x10400
+#define COMMAND_LINE_SIZE       896
+#define RAMDISK_ORIGIN          0x800000
+#define RAMDISK_SIZE            0x800000
+#define MEMORY_CHUNKS           16      /* max 0x7fff */
+
+#ifndef __ASSEMBLY__
+
+#ifndef __s390x__
+#define IPL_DEVICE        (*(unsigned long *)  (0x10404))
+#define INITRD_START      (*(unsigned long *)  (0x1040C))
+#define INITRD_SIZE       (*(unsigned long *)  (0x10414))
+#else /* __s390x__ */
+#define IPL_DEVICE        (*(unsigned long *)  (0x10400))
+#define INITRD_START      (*(unsigned long *)  (0x10408))
+#define INITRD_SIZE       (*(unsigned long *)  (0x10410))
+#endif /* __s390x__ */
+#define COMMAND_LINE      ((char *)            (0x10480))
+
+/*
+ * Machine features detected in head.S
+ */
+extern unsigned long machine_flags;
+
+#define MACHINE_IS_VM           (machine_flags & 1)
+#define MACHINE_IS_P390         (machine_flags & 4)
+#define MACHINE_HAS_MVPG        (machine_flags & 16)
+#define MACHINE_HAS_DIAG44      (machine_flags & 32)
+#define MACHINE_HAS_IDTE        (machine_flags & 128)
+
+#ifndef __s390x__
+#define MACHINE_HAS_IEEE        (machine_flags & 2)
+#define MACHINE_HAS_CSP         (machine_flags & 8)
+#else /* __s390x__ */
+#define MACHINE_HAS_IEEE        (1)
+#define MACHINE_HAS_CSP         (1)
+#endif /* __s390x__ */
+
+
+#define MACHINE_HAS_SCLP        (!MACHINE_IS_P390)
+
+/*
+ * Console mode. Override with conmode=
+ */
+extern unsigned int console_mode;
+extern unsigned int console_devno;
+extern unsigned int console_irq;
+
+#define CONSOLE_IS_UNDEFINED    (console_mode == 0)
+#define CONSOLE_IS_SCLP         (console_mode == 1)
+#define CONSOLE_IS_3215         (console_mode == 2)
+#define CONSOLE_IS_3270         (console_mode == 3)
+#define SET_CONSOLE_SCLP        do { console_mode = 1; } while (0)
+#define SET_CONSOLE_3215        do { console_mode = 2; } while (0)
+#define SET_CONSOLE_3270        do { console_mode = 3; } while (0)
+
+#else 
+
+#ifndef __s390x__
+#define IPL_DEVICE        0x10404
+#define INITRD_START      0x1040C
+#define INITRD_SIZE       0x10414
+#else /* __s390x__ */
+#define IPL_DEVICE        0x10400
+#define INITRD_START      0x10408
+#define INITRD_SIZE       0x10410
+#endif /* __s390x__ */
+#define COMMAND_LINE      0x10480
+
+#endif
+
+#endif
diff --git a/include/asm-s390/sfp-machine.h b/include/asm-s390/sfp-machine.h
new file mode 100644
index 000000000000..3c79b5384f44
--- /dev/null
+++ b/include/asm-s390/sfp-machine.h
@@ -0,0 +1,139 @@
+/* Machine-dependent software floating-point definitions.
+   S/390 kernel version.
+   Copyright (C) 1997,1998,1999 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Richard Henderson (rth@cygnus.com),
+                  Jakub Jelinek (jj@ultra.linux.cz),
+                  David S. Miller (davem@redhat.com) and
+                  Peter Maydell (pmaydell@chiark.greenend.org.uk).
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If
+   not, write to the Free Software Foundation, Inc.,
+   59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#ifndef _SFP_MACHINE_H
+#define _SFP_MACHINE_H
+   
+#include <linux/config.h>
+
+#define _FP_W_TYPE_SIZE         32
+#define _FP_W_TYPE              unsigned long
+#define _FP_WS_TYPE             signed long
+#define _FP_I_TYPE              long
+
+#define _FP_MUL_MEAT_S(R,X,Y)                                   \
+  _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm)
+#define _FP_MUL_MEAT_D(R,X,Y)                                   \
+  _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm)
+#define _FP_MUL_MEAT_Q(R,X,Y)                                   \
+  _FP_MUL_MEAT_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
+
+#define _FP_DIV_MEAT_S(R,X,Y)   _FP_DIV_MEAT_1_udiv(S,R,X,Y)
+#define _FP_DIV_MEAT_D(R,X,Y)   _FP_DIV_MEAT_2_udiv(D,R,X,Y)
+#define _FP_DIV_MEAT_Q(R,X,Y)   _FP_DIV_MEAT_4_udiv(Q,R,X,Y)
+
+#define _FP_NANFRAC_S           ((_FP_QNANBIT_S << 1) - 1)
+#define _FP_NANFRAC_D           ((_FP_QNANBIT_D << 1) - 1), -1
+#define _FP_NANFRAC_Q           ((_FP_QNANBIT_Q << 1) - 1), -1, -1, -1
+#define _FP_NANSIGN_S           0
+#define _FP_NANSIGN_D           0
+#define _FP_NANSIGN_Q           0
+
+#define _FP_KEEPNANFRACP 1
+
+/*
+ * If one NaN is signaling and the other is not,
+ * we choose that one, otherwise we choose X.
+ */
+#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP)                      \
+  do {                                                          \
+    if ((_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs)          \
+        && !(_FP_FRAC_HIGH_RAW_##fs(Y) & _FP_QNANBIT_##fs))     \
+      {                                                         \
+        R##_s = Y##_s;                                          \
+        _FP_FRAC_COPY_##wc(R,Y);                                \
+      }                                                         \
+    else                                                        \
+      {                                                         \
+        R##_s = X##_s;                                          \
+        _FP_FRAC_COPY_##wc(R,X);                                \
+      }                                                         \
+    R##_c = FP_CLS_NAN;                                         \
+  } while (0)
+
+/* Some assembly to speed things up. */
+#define __FP_FRAC_ADD_3(r2,r1,r0,x2,x1,x0,y2,y1,y0) ({          \
+        unsigned int __r2 = (x2) + (y2);                        \
+        unsigned int __r1 = (x1);                               \
+        unsigned int __r0 = (x0);                               \
+        __asm__ ("   alr %2,%3\n"                               \
+                 "   brc 12,0f\n"                               \
+                 "   lhi 0,1\n"                                 \
+                 "   alr %1,0\n"                                \
+                 "   brc 12,0f\n"                               \
+                 "   alr %0,0\n"                                \
+                 "0:"                                           \
+                 : "+&d" (__r2), "+&d" (__r1), "+&d" (__r0)     \
+                 : "d" (y0), "i" (1) : "cc", "0" );             \
+        __asm__ ("   alr %1,%2\n"                               \
+                 "   brc 12,0f\n"                               \
+                 "   ahi %0,1\n"                                \
+                 "0:"                                           \
+                 : "+&d" (__r2), "+&d" (__r1)                   \
+                 : "d" (y1) : "cc" );                           \
+        (r2) = __r2;                                            \
+        (r1) = __r1;                                            \
+        (r0) = __r0;                                            \
+})
+
+#define __FP_FRAC_SUB_3(r2,r1,r0,x2,x1,x0,y2,y1,y0) ({          \
+        unsigned int __r2 = (x2) - (y2);                        \
+        unsigned int __r1 = (x1);                               \
+        unsigned int __r0 = (x0);                               \
+        __asm__ ("   slr %2,%3\n"                               \
+                 "   brc 3,0f\n"                                \
+                 "   lhi 0,1\n"                                 \
+                 "   slr %1,0\n"                                \
+                 "   brc 3,0f\n"                                \
+                 "   slr %0,0\n"                                \
+                 "0:"                                           \
+                 : "+&d" (__r2), "+&d" (__r1), "+&d" (__r0)     \
+                 : "d" (y0) : "cc", "0" );                      \
+        __asm__ ("   slr %1,%2\n"                               \
+                 "   brc 3,0f\n"                                \
+                 "   ahi %0,-1\n"                               \
+                 "0:"                                           \
+                 : "+&d" (__r2), "+&d" (__r1)                   \
+                 : "d" (y1) : "cc" );                           \
+        (r2) = __r2;                                            \
+        (r1) = __r1;                                            \
+        (r0) = __r0;                                            \
+})
+
+#define __FP_FRAC_DEC_3(x2,x1,x0,y2,y1,y0) __FP_FRAC_SUB_3(x2,x1,x0,x2,x1,x0,y2,y1,y0)
+
+/* Obtain the current rounding mode. */
+#define FP_ROUNDMODE    mode
+
+/* Exception flags. */
+#define FP_EX_INVALID           0x800000
+#define FP_EX_DIVZERO           0x400000
+#define FP_EX_OVERFLOW          0x200000
+#define FP_EX_UNDERFLOW         0x100000
+#define FP_EX_INEXACT           0x080000
+
+/* We write the results always */
+#define FP_INHIBIT_RESULTS 0
+
+#endif
diff --git a/include/asm-s390/shmbuf.h b/include/asm-s390/shmbuf.h
new file mode 100644
index 000000000000..eed2e280ce37
--- /dev/null
+++ b/include/asm-s390/shmbuf.h
@@ -0,0 +1,48 @@
+#ifndef _S390_SHMBUF_H
+#define _S390_SHMBUF_H
+
+/* 
+ * The shmid64_ds structure for S/390 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 (for !__s390x__)
+ * - 2 miscellaneous 32-bit values
+ */
+
+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 */
+#ifndef __s390x__
+        unsigned long           __unused1;
+#endif /* ! __s390x__ */
+        __kernel_time_t         shm_dtime;      /* last detach time */
+#ifndef __s390x__
+        unsigned long           __unused2;
+#endif /* ! __s390x__ */
+        __kernel_time_t         shm_ctime;      /* last change time */
+#ifndef __s390x__
+        unsigned long           __unused3;
+#endif /* ! __s390x__ */
+        __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;
+};
+
+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 /* _S390_SHMBUF_H */
diff --git a/include/asm-s390/shmparam.h b/include/asm-s390/shmparam.h
new file mode 100644
index 000000000000..c2e0c0508e73
--- /dev/null
+++ b/include/asm-s390/shmparam.h
@@ -0,0 +1,13 @@
+/*
+ *  include/asm-s390/shmparam.h
+ *
+ *  S390 version
+ *
+ *  Derived from "include/asm-i386/shmparam.h"
+ */
+#ifndef _ASM_S390_SHMPARAM_H
+#define _ASM_S390_SHMPARAM_H
+
+#define SHMLBA PAGE_SIZE                 /* attach addr a multiple of this */
+
+#endif /* _ASM_S390_SHMPARAM_H */
diff --git a/include/asm-s390/sigcontext.h b/include/asm-s390/sigcontext.h
new file mode 100644
index 000000000000..d57bc0cebdce
--- /dev/null
+++ b/include/asm-s390/sigcontext.h
@@ -0,0 +1,69 @@
+/*
+ *  include/asm-s390/sigcontext.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999,2000 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ */
+
+#ifndef _ASM_S390_SIGCONTEXT_H
+#define _ASM_S390_SIGCONTEXT_H
+
+#define __NUM_GPRS 16
+#define __NUM_FPRS 16
+#define __NUM_ACRS 16
+
+#ifndef __s390x__
+
+/* Has to be at least _NSIG_WORDS from asm/signal.h */
+#define _SIGCONTEXT_NSIG        64
+#define _SIGCONTEXT_NSIG_BPW    32
+/* Size of stack frame allocated when calling signal handler. */
+#define __SIGNAL_FRAMESIZE      96
+
+#else /* __s390x__ */
+
+/* Has to be at least _NSIG_WORDS from asm/signal.h */
+#define _SIGCONTEXT_NSIG        64
+#define _SIGCONTEXT_NSIG_BPW    64 
+/* Size of stack frame allocated when calling signal handler. */
+#define __SIGNAL_FRAMESIZE      160
+
+#endif /* __s390x__ */
+
+#define _SIGCONTEXT_NSIG_WORDS  (_SIGCONTEXT_NSIG / _SIGCONTEXT_NSIG_BPW)
+#define _SIGMASK_COPY_SIZE      (sizeof(unsigned long)*_SIGCONTEXT_NSIG_WORDS)
+
+typedef struct 
+{
+        unsigned long mask;
+        unsigned long addr;
+} __attribute__ ((aligned(8))) _psw_t;
+
+typedef struct
+{
+        _psw_t psw;
+        unsigned long gprs[__NUM_GPRS];
+        unsigned int  acrs[__NUM_ACRS];
+} _s390_regs_common;
+
+typedef struct
+{
+        unsigned int fpc;
+        double   fprs[__NUM_FPRS];
+} _s390_fp_regs;
+
+typedef struct
+{
+        _s390_regs_common regs;
+        _s390_fp_regs     fpregs;
+} _sigregs;
+
+struct sigcontext
+{
+        unsigned long   oldmask[_SIGCONTEXT_NSIG_WORDS];
+        _sigregs        *sregs;
+};
+
+
+#endif
+
diff --git a/include/asm-s390/siginfo.h b/include/asm-s390/siginfo.h
new file mode 100644
index 000000000000..72303537b732
--- /dev/null
+++ b/include/asm-s390/siginfo.h
@@ -0,0 +1,24 @@
+/*
+ *  include/asm-s390/siginfo.h
+ *
+ *  S390 version
+ *
+ *  Derived from "include/asm-i386/siginfo.h"
+ */
+
+#ifndef _S390_SIGINFO_H
+#define _S390_SIGINFO_H
+
+#ifdef __s390x__
+#define __ARCH_SI_PREAMBLE_SIZE (4 * sizeof(int))
+#endif
+
+#ifdef CONFIG_ARCH_S390X
+#define SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE/sizeof(int)) - 4)
+#else
+#define SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE/sizeof(int)) - 3)
+#endif
+
+#include <asm-generic/siginfo.h>
+
+#endif
diff --git a/include/asm-s390/signal.h b/include/asm-s390/signal.h
new file mode 100644
index 000000000000..f273cdcd1cf6
--- /dev/null
+++ b/include/asm-s390/signal.h
@@ -0,0 +1,197 @@
+/*
+ *  include/asm-s390/signal.h
+ *
+ *  S390 version
+ *
+ *  Derived from "include/asm-i386/signal.h"
+ */
+
+#ifndef _ASMS390_SIGNAL_H
+#define _ASMS390_SIGNAL_H
+
+#include <linux/types.h>
+#include <linux/time.h>
+
+/* Avoid too many header ordering problems.  */
+struct siginfo;
+struct pt_regs;
+
+#ifdef __KERNEL__
+/* Most things should be clean enough to redefine this at will, if care
+   is taken to make libc match.  */
+#include <asm/sigcontext.h>
+#define _NSIG           _SIGCONTEXT_NSIG
+#define _NSIG_BPW       _SIGCONTEXT_NSIG_BPW
+#define _NSIG_WORDS     _SIGCONTEXT_NSIG_WORDS
+
+typedef unsigned long old_sigset_t;             /* at least 32 bits */
+
+typedef struct {
+        unsigned long sig[_NSIG_WORDS];
+} sigset_t;
+
+#else
+/* Here we must cater to libcs that poke about in kernel headers.  */
+
+#define NSIG            32
+typedef unsigned long sigset_t;
+
+#endif /* __KERNEL__ */
+
+#define SIGHUP           1
+#define SIGINT           2
+#define SIGQUIT          3
+#define SIGILL           4
+#define SIGTRAP          5
+#define SIGABRT          6
+#define SIGIOT           6
+#define SIGBUS           7
+#define SIGFPE           8
+#define SIGKILL          9
+#define SIGUSR1         10
+#define SIGSEGV         11
+#define SIGUSR2         12
+#define SIGPIPE         13
+#define SIGALRM         14
+#define SIGTERM         15
+#define SIGSTKFLT       16
+#define SIGCHLD         17
+#define SIGCONT         18
+#define SIGSTOP         19
+#define SIGTSTP         20
+#define SIGTTIN         21
+#define SIGTTOU         22
+#define SIGURG          23
+#define SIGXCPU         24
+#define SIGXFSZ         25
+#define SIGVTALRM       26
+#define SIGPROF         27
+#define SIGWINCH        28
+#define SIGIO           29
+#define SIGPOLL         SIGIO
+/*
+#define SIGLOST         29
+*/
+#define SIGPWR          30
+#define SIGSYS          31
+#define SIGUNUSED       31
+
+/* These should not be considered constants from userland.  */
+#define SIGRTMIN        32
+#define SIGRTMAX        _NSIG
+
+/*
+ * SA_FLAGS values:
+ *
+ * SA_ONSTACK indicates that a registered stack_t will be used.
+ * SA_INTERRUPT is a no-op, but left due to historical reasons. Use the
+ * SA_RESTART flag to get restarting signals (which were the default long ago)
+ * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
+ * SA_RESETHAND clears the handler when the signal is delivered.
+ * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
+ * SA_NODEFER prevents the current signal from being masked in the handler.
+ *
+ * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
+ * Unix names RESETHAND and NODEFER respectively.
+ */
+#define SA_NOCLDSTOP    0x00000001
+#define SA_NOCLDWAIT    0x00000002
+#define SA_SIGINFO      0x00000004
+#define SA_ONSTACK      0x08000000
+#define SA_RESTART      0x10000000
+#define SA_NODEFER      0x40000000
+#define SA_RESETHAND    0x80000000
+
+#define SA_NOMASK       SA_NODEFER
+#define SA_ONESHOT      SA_RESETHAND
+#define SA_INTERRUPT    0x20000000 /* dummy -- ignored */
+
+#define SA_RESTORER     0x04000000
+
+/*
+ * sigaltstack controls
+ */
+#define SS_ONSTACK      1
+#define SS_DISABLE      2
+
+#define MINSIGSTKSZ     2048
+#define SIGSTKSZ        8192
+
+#ifdef __KERNEL__
+
+/*
+ * These values of sa_flags are used only by the kernel as part of the
+ * irq handling routines.
+ *
+ * SA_INTERRUPT is also used by the irq handling routines.
+ * SA_SHIRQ is for shared interrupt support on PCI and EISA.
+ */
+#define SA_PROBE                SA_ONESHOT
+#define SA_SAMPLE_RANDOM        SA_RESTART
+#define SA_SHIRQ                0x04000000
+#endif
+
+#define SIG_BLOCK          0    /* for blocking signals */
+#define SIG_UNBLOCK        1    /* for unblocking signals */
+#define SIG_SETMASK        2    /* for setting the signal mask */
+
+/* Type of a signal handler.  */
+typedef void (*__sighandler_t)(int);
+
+#define SIG_DFL ((__sighandler_t)0)     /* default signal handling */
+#define SIG_IGN ((__sighandler_t)1)     /* ignore signal */
+#define SIG_ERR ((__sighandler_t)-1)    /* error return from signal */
+
+#ifdef __KERNEL__
+struct old_sigaction {
+        __sighandler_t sa_handler;
+        old_sigset_t sa_mask;
+        unsigned long sa_flags;
+        void (*sa_restorer)(void);
+};
+
+struct sigaction {
+        __sighandler_t sa_handler;
+        unsigned long sa_flags;
+        void (*sa_restorer)(void);
+        sigset_t sa_mask;               /* mask last for extensibility */
+};
+
+struct k_sigaction {
+        struct sigaction sa;
+};
+
+#define ptrace_signal_deliver(regs, cookie) do { } while (0)
+
+#else
+/* Here we must cater to libcs that poke about in kernel headers.  */
+
+struct sigaction {
+        union {
+          __sighandler_t _sa_handler;
+          void (*_sa_sigaction)(int, struct siginfo *, void *);
+        } _u;
+#ifndef __s390x__ /* lovely */
+        sigset_t sa_mask;
+        unsigned long sa_flags;
+        void (*sa_restorer)(void);
+#else  /* __s390x__ */
+        unsigned long sa_flags;
+        void (*sa_restorer)(void);
+        sigset_t sa_mask;
+#endif /* __s390x__ */
+};
+
+#define sa_handler      _u._sa_handler
+#define sa_sigaction    _u._sa_sigaction
+
+#endif /* __KERNEL__ */
+
+typedef struct sigaltstack {
+        void *ss_sp;
+        int ss_flags;
+        size_t ss_size;
+} stack_t;
+
+
+#endif
diff --git a/include/asm-s390/sigp.h b/include/asm-s390/sigp.h
new file mode 100644
index 000000000000..3979bc3858e2
--- /dev/null
+++ b/include/asm-s390/sigp.h
@@ -0,0 +1,131 @@
+/*
+ *  include/asm-s390/sigp.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com),
+ *               Martin Schwidefsky (schwidefsky@de.ibm.com)
+ *               Heiko Carstens (heiko.carstens@de.ibm.com)
+ *
+ *  sigp.h by D.J. Barrow (c) IBM 1999
+ *  contains routines / structures for signalling other S/390 processors in an
+ *  SMP configuration.
+ */
+
+#ifndef __SIGP__
+#define __SIGP__
+
+#include <asm/ptrace.h>
+#include <asm/atomic.h>
+
+/* get real cpu address from logical cpu number */
+extern volatile int __cpu_logical_map[];
+
+typedef enum
+{
+        sigp_unassigned=0x0,
+        sigp_sense,
+        sigp_external_call,
+        sigp_emergency_signal,
+        sigp_start,
+        sigp_stop,
+        sigp_restart,
+        sigp_unassigned1,
+        sigp_unassigned2,
+        sigp_stop_and_store_status,
+        sigp_unassigned3,
+        sigp_initial_cpu_reset,
+        sigp_cpu_reset,
+        sigp_set_prefix,
+        sigp_store_status_at_address,
+        sigp_store_extended_status_at_address
+} sigp_order_code;
+
+typedef __u32 sigp_status_word;
+
+typedef enum
+{
+        sigp_order_code_accepted=0,
+        sigp_status_stored,
+        sigp_busy,
+        sigp_not_operational
+} sigp_ccode;
+
+
+/*
+ * Definitions for the external call
+ */
+
+/* 'Bit' signals, asynchronous */
+typedef enum
+{
+        ec_schedule=0,
+        ec_call_function,
+        ec_bit_last
+} ec_bit_sig;
+
+/*
+ * Signal processor
+ */
+extern __inline__ sigp_ccode
+signal_processor(__u16 cpu_addr, sigp_order_code order_code)
+{
+        sigp_ccode ccode;
+
+        __asm__ __volatile__(
+                "    sr     1,1\n"        /* parameter=0 in gpr 1 */
+                "    sigp   1,%1,0(%2)\n"
+                "    ipm    %0\n"
+                "    srl    %0,28\n"
+                : "=d" (ccode)
+                : "d" (__cpu_logical_map[cpu_addr]), "a" (order_code)
+                : "cc" , "memory", "1" );
+        return ccode;
+}
+
+/*
+ * Signal processor with parameter
+ */
+extern __inline__ sigp_ccode
+signal_processor_p(__u32 parameter, __u16 cpu_addr,
+                   sigp_order_code order_code)
+{
+        sigp_ccode ccode;
+        
+        __asm__ __volatile__(
+                "    lr     1,%1\n"       /* parameter in gpr 1 */
+                "    sigp   1,%2,0(%3)\n"
+                "    ipm    %0\n"
+                "    srl    %0,28\n"
+                : "=d" (ccode)
+                : "d" (parameter), "d" (__cpu_logical_map[cpu_addr]),
+                  "a" (order_code)
+                : "cc" , "memory", "1" );
+        return ccode;
+}
+
+/*
+ * Signal processor with parameter and return status
+ */
+extern __inline__ sigp_ccode
+signal_processor_ps(__u32 *statusptr, __u32 parameter,
+                    __u16 cpu_addr, sigp_order_code order_code)
+{
+        sigp_ccode ccode;
+        
+        __asm__ __volatile__(
+                "    sr     2,2\n"        /* clear status */
+                "    lr     3,%2\n"       /* parameter in gpr 3 */
+                "    sigp   2,%3,0(%4)\n"
+                "    st     2,%1\n"
+                "    ipm    %0\n"
+                "    srl    %0,28\n"
+                : "=d" (ccode), "=m" (*statusptr)
+                : "d" (parameter), "d" (__cpu_logical_map[cpu_addr]),
+                  "a" (order_code)
+                : "cc" , "memory", "2" , "3"
+                );
+   return ccode;
+}
+
+#endif /* __SIGP__ */
diff --git a/include/asm-s390/smp.h b/include/asm-s390/smp.h
new file mode 100644
index 000000000000..9473786387a3
--- /dev/null
+++ b/include/asm-s390/smp.h
@@ -0,0 +1,108 @@
+/*
+ *  include/asm-s390/smp.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com),
+ *               Martin Schwidefsky (schwidefsky@de.ibm.com)
+ *               Heiko Carstens (heiko.carstens@de.ibm.com)
+ */
+#ifndef __ASM_SMP_H
+#define __ASM_SMP_H
+
+#include <linux/config.h>
+#include <linux/threads.h>
+#include <linux/cpumask.h>
+#include <linux/bitops.h>
+
+#if defined(__KERNEL__) && defined(CONFIG_SMP) && !defined(__ASSEMBLY__)
+
+#include <asm/lowcore.h>
+#include <asm/sigp.h>
+
+/*
+  s390 specific smp.c headers
+ */
+typedef struct
+{
+        int        intresting;
+        sigp_ccode ccode; 
+        __u32      status;
+        __u16      cpu;
+} sigp_info;
+
+extern int smp_call_function_on(void (*func) (void *info), void *info,
+                                int nonatomic, int wait, int cpu);
+#define NO_PROC_ID              0xFF            /* No processor magic marker */
+
+/*
+ *      This magic constant controls our willingness to transfer
+ *      a process across CPUs. Such a transfer incurs misses on the L1
+ *      cache, and on a P6 or P5 with multiple L2 caches L2 hits. My
+ *      gut feeling is this will vary by board in value. For a board
+ *      with separate L2 cache it probably depends also on the RSS, and
+ *      for a board with shared L2 cache it ought to decay fast as other
+ *      processes are run.
+ */
+ 
+#define PROC_CHANGE_PENALTY     20              /* Schedule penalty */
+
+#define smp_processor_id() (S390_lowcore.cpu_data.cpu_nr)
+
+extern int smp_get_cpu(cpumask_t cpu_map);
+extern void smp_put_cpu(int cpu);
+
+extern __inline__ __u16 hard_smp_processor_id(void)
+{
+        __u16 cpu_address;
+ 
+        __asm__ ("stap %0\n" : "=m" (cpu_address));
+        return cpu_address;
+}
+
+/*
+ * returns 1 if cpu is in stopped/check stopped state or not operational
+ * returns 0 otherwise
+ */
+static inline int
+smp_cpu_not_running(int cpu)
+{
+        __u32 status;
+
+        switch (signal_processor_ps(&status, 0, cpu, sigp_sense)) {
+        case sigp_order_code_accepted:
+        case sigp_status_stored:
+                /* Check for stopped and check stop state */
+                if (status & 0x50)
+                        return 1;
+                break;
+        case sigp_not_operational:
+                return 1;
+        default:
+                break;
+        }
+        return 0;
+}
+
+#define cpu_logical_map(cpu) (cpu)
+
+extern int __cpu_disable (void);
+extern void __cpu_die (unsigned int cpu);
+extern void cpu_die (void) __attribute__ ((noreturn));
+extern int __cpu_up (unsigned int cpu);
+
+#endif
+
+#ifndef CONFIG_SMP
+static inline int
+smp_call_function_on(void (*func) (void *info), void *info,
+                     int nonatomic, int wait, int cpu)
+{
+        func(info);
+        return 0;
+}
+#define smp_get_cpu(cpu) ({ 0; })
+#define smp_put_cpu(cpu) ({ 0; })
+#endif
+
+#endif
diff --git a/include/asm-s390/socket.h b/include/asm-s390/socket.h
new file mode 100644
index 000000000000..0e96eeca4e6b
--- /dev/null
+++ b/include/asm-s390/socket.h
@@ -0,0 +1,58 @@
+/*
+ *  include/asm-s390/socket.h
+ *
+ *  S390 version
+ *
+ *  Derived from "include/asm-i386/socket.h"
+ */
+
+#ifndef _ASM_SOCKET_H
+#define _ASM_SOCKET_H
+
+#include <asm/sockios.h>
+
+/* For setsockopt(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_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
+
+#endif /* _ASM_SOCKET_H */
diff --git a/include/asm-s390/sockios.h b/include/asm-s390/sockios.h
new file mode 100644
index 000000000000..412aeb4dd6ce
--- /dev/null
+++ b/include/asm-s390/sockios.h
@@ -0,0 +1,20 @@
+/*
+ *  include/asm-s390/sockios.h
+ *
+ *  S390 version
+ *
+ *  Derived from "include/asm-i386/sockios.h"
+ */
+
+#ifndef __ARCH_S390_SOCKIOS__
+#define __ARCH_S390_SOCKIOS__
+
+/* Socket-level I/O control calls. */
+#define FIOSETOWN       0x8901
+#define SIOCSPGRP       0x8902
+#define FIOGETOWN       0x8903
+#define SIOCGPGRP       0x8904
+#define SIOCATMARK      0x8905
+#define SIOCGSTAMP      0x8906          /* Get stamp */
+
+#endif
diff --git a/include/asm-s390/spinlock.h b/include/asm-s390/spinlock.h
new file mode 100644
index 000000000000..53cc736b9820
--- /dev/null
+++ b/include/asm-s390/spinlock.h
@@ -0,0 +1,251 @@
+/*
+ *  include/asm-s390/spinlock.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
+ *
+ *  Derived from "include/asm-i386/spinlock.h"
+ */
+
+#ifndef __ASM_SPINLOCK_H
+#define __ASM_SPINLOCK_H
+
+#ifdef __s390x__
+/*
+ * Grmph, take care of %&#! user space programs that include
+ * asm/spinlock.h. The diagnose is only available in kernel
+ * context.
+ */
+#ifdef __KERNEL__
+#include <asm/lowcore.h>
+#define __DIAG44_INSN "ex"
+#define __DIAG44_OPERAND __LC_DIAG44_OPCODE
+#else
+#define __DIAG44_INSN "#"
+#define __DIAG44_OPERAND 0
+#endif
+#endif /* __s390x__ */
+
+/*
+ * Simple spin lock operations.  There are two variants, one clears IRQ's
+ * on the local processor, one does not.
+ *
+ * We make no fairness assumptions. They have a cost.
+ */
+
+typedef struct {
+        volatile unsigned int lock;
+#ifdef CONFIG_PREEMPT
+        unsigned int break_lock;
+#endif
+} __attribute__ ((aligned (4))) spinlock_t;
+
+#define SPIN_LOCK_UNLOCKED (spinlock_t) { 0 }
+#define spin_lock_init(lp) do { (lp)->lock = 0; } while(0)
+#define spin_unlock_wait(lp)    do { barrier(); } while(((volatile spinlock_t *)(lp))->lock)
+#define spin_is_locked(x) ((x)->lock != 0)
+#define _raw_spin_lock_flags(lock, flags) _raw_spin_lock(lock)
+
+extern inline void _raw_spin_lock(spinlock_t *lp)
+{
+#ifndef __s390x__
+        unsigned int reg1, reg2;
+        __asm__ __volatile__("    bras  %0,1f\n"
+                           "0:  diag  0,0,68\n"
+                           "1:  slr   %1,%1\n"
+                           "    cs    %1,%0,0(%3)\n"
+                           "    jl    0b\n"
+                           : "=&d" (reg1), "=&d" (reg2), "=m" (lp->lock)
+                           : "a" (&lp->lock), "m" (lp->lock)
+                           : "cc", "memory" );
+#else /* __s390x__ */
+        unsigned long reg1, reg2;
+        __asm__ __volatile__("    bras  %1,1f\n"
+                           "0:  " __DIAG44_INSN " 0,%4\n"
+                           "1:  slr   %0,%0\n"
+                           "    cs    %0,%1,0(%3)\n"
+                           "    jl    0b\n"
+                           : "=&d" (reg1), "=&d" (reg2), "=m" (lp->lock)
+                           : "a" (&lp->lock), "i" (__DIAG44_OPERAND),
+                             "m" (lp->lock) : "cc", "memory" );
+#endif /* __s390x__ */
+}
+
+extern inline int _raw_spin_trylock(spinlock_t *lp)
+{
+        unsigned long reg;
+        unsigned int result;
+
+        __asm__ __volatile__("    basr  %1,0\n"
+                           "0:  cs    %0,%1,0(%3)"
+                           : "=d" (result), "=&d" (reg), "=m" (lp->lock)
+                           : "a" (&lp->lock), "m" (lp->lock), "0" (0)
+                           : "cc", "memory" );
+        return !result;
+}
+
+extern inline void _raw_spin_unlock(spinlock_t *lp)
+{
+        unsigned int old;
+
+        __asm__ __volatile__("cs %0,%3,0(%4)"
+                           : "=d" (old), "=m" (lp->lock)
+                           : "0" (lp->lock), "d" (0), "a" (lp)
+                           : "cc", "memory" );
+}
+                
+/*
+ * Read-write spinlocks, allowing multiple readers
+ * but only one writer.
+ *
+ * NOTE! it is quite common to have readers in interrupts
+ * but no interrupt writers. For those circumstances we
+ * can "mix" irq-safe locks - any writer needs to get a
+ * irq-safe write-lock, but readers can get non-irqsafe
+ * read-locks.
+ */
+typedef struct {
+        volatile unsigned long lock;
+        volatile unsigned long owner_pc;
+#ifdef CONFIG_PREEMPT
+        unsigned int break_lock;
+#endif
+} rwlock_t;
+
+#define RW_LOCK_UNLOCKED (rwlock_t) { 0, 0 }
+
+#define rwlock_init(x)  do { *(x) = RW_LOCK_UNLOCKED; } while(0)
+
+/**
+ * read_can_lock - would read_trylock() succeed?
+ * @lock: the rwlock in question.
+ */
+#define read_can_lock(x) ((int)(x)->lock >= 0)
+
+/**
+ * write_can_lock - would write_trylock() succeed?
+ * @lock: the rwlock in question.
+ */
+#define write_can_lock(x) ((x)->lock == 0)
+
+#ifndef __s390x__
+#define _raw_read_lock(rw)   \
+        asm volatile("   l     2,0(%1)\n"   \
+                     "   j     1f\n"     \
+                     "0: diag  0,0,68\n" \
+                     "1: la    2,0(2)\n"     /* clear high (=write) bit */ \
+                     "   la    3,1(2)\n"     /* one more reader */ \
+                     "   cs    2,3,0(%1)\n"  /* try to write new value */ \
+                     "   jl    0b"       \
+                     : "=m" ((rw)->lock) : "a" (&(rw)->lock), \
+                       "m" ((rw)->lock) : "2", "3", "cc", "memory" )
+#else /* __s390x__ */
+#define _raw_read_lock(rw)   \
+        asm volatile("   lg    2,0(%1)\n"   \
+                     "   j     1f\n"     \
+                     "0: " __DIAG44_INSN " 0,%2\n" \
+                     "1: nihh  2,0x7fff\n" /* clear high (=write) bit */ \
+                     "   la    3,1(2)\n"   /* one more reader */  \
+                     "   csg   2,3,0(%1)\n" /* try to write new value */ \
+                     "   jl    0b"       \
+                     : "=m" ((rw)->lock) \
+                     : "a" (&(rw)->lock), "i" (__DIAG44_OPERAND), \
+                       "m" ((rw)->lock) : "2", "3", "cc", "memory" )
+#endif /* __s390x__ */
+
+#ifndef __s390x__
+#define _raw_read_unlock(rw) \
+        asm volatile("   l     2,0(%1)\n"   \
+                     "   j     1f\n"     \
+                     "0: diag  0,0,68\n" \
+                     "1: lr    3,2\n"    \
+                     "   ahi   3,-1\n"    /* one less reader */ \
+                     "   cs    2,3,0(%1)\n" \
+                     "   jl    0b"       \
+                     : "=m" ((rw)->lock) : "a" (&(rw)->lock), \
+                       "m" ((rw)->lock) : "2", "3", "cc", "memory" )
+#else /* __s390x__ */
+#define _raw_read_unlock(rw) \
+        asm volatile("   lg    2,0(%1)\n"   \
+                     "   j     1f\n"     \
+                     "0: " __DIAG44_INSN " 0,%2\n" \
+                     "1: lgr   3,2\n"    \
+                     "   bctgr 3,0\n"    /* one less reader */ \
+                     "   csg   2,3,0(%1)\n" \
+                     "   jl    0b"       \
+                     : "=m" ((rw)->lock) \
+                     : "a" (&(rw)->lock), "i" (__DIAG44_OPERAND), \
+                       "m" ((rw)->lock) : "2", "3", "cc", "memory" )
+#endif /* __s390x__ */
+
+#ifndef __s390x__
+#define _raw_write_lock(rw) \
+        asm volatile("   lhi   3,1\n"    \
+                     "   sll   3,31\n"    /* new lock value = 0x80000000 */ \
+                     "   j     1f\n"     \
+                     "0: diag  0,0,68\n" \
+                     "1: slr   2,2\n"     /* old lock value must be 0 */ \
+                     "   cs    2,3,0(%1)\n" \
+                     "   jl    0b"       \
+                     : "=m" ((rw)->lock) : "a" (&(rw)->lock), \
+                       "m" ((rw)->lock) : "2", "3", "cc", "memory" )
+#else /* __s390x__ */
+#define _raw_write_lock(rw) \
+        asm volatile("   llihh 3,0x8000\n" /* new lock value = 0x80...0 */ \
+                     "   j     1f\n"       \
+                     "0: " __DIAG44_INSN " 0,%2\n"   \
+                     "1: slgr  2,2\n"      /* old lock value must be 0 */ \
+                     "   csg   2,3,0(%1)\n" \
+                     "   jl    0b"         \
+                     : "=m" ((rw)->lock) \
+                     : "a" (&(rw)->lock), "i" (__DIAG44_OPERAND), \
+                       "m" ((rw)->lock) : "2", "3", "cc", "memory" )
+#endif /* __s390x__ */
+
+#ifndef __s390x__
+#define _raw_write_unlock(rw) \
+        asm volatile("   slr   3,3\n"     /* new lock value = 0 */ \
+                     "   j     1f\n"     \
+                     "0: diag  0,0,68\n" \
+                     "1: lhi   2,1\n"    \
+                     "   sll   2,31\n"    /* old lock value must be 0x80000000 */ \
+                     "   cs    2,3,0(%1)\n" \
+                     "   jl    0b"       \
+                     : "=m" ((rw)->lock) : "a" (&(rw)->lock), \
+                       "m" ((rw)->lock) : "2", "3", "cc", "memory" )
+#else /* __s390x__ */
+#define _raw_write_unlock(rw) \
+        asm volatile("   slgr  3,3\n"      /* new lock value = 0 */ \
+                     "   j     1f\n"       \
+                     "0: " __DIAG44_INSN " 0,%2\n"   \
+                     "1: llihh 2,0x8000\n" /* old lock value must be 0x8..0 */\
+                     "   csg   2,3,0(%1)\n"   \
+                     "   jl    0b"         \
+                     : "=m" ((rw)->lock) \
+                     : "a" (&(rw)->lock), "i" (__DIAG44_OPERAND), \
+                       "m" ((rw)->lock) : "2", "3", "cc", "memory" )
+#endif /* __s390x__ */
+
+#define _raw_read_trylock(lock) generic_raw_read_trylock(lock)
+
+extern inline int _raw_write_trylock(rwlock_t *rw)
+{
+        unsigned long result, reg;
+        
+        __asm__ __volatile__(
+#ifndef __s390x__
+                             "   lhi  %1,1\n"
+                             "   sll  %1,31\n"
+                             "   cs   %0,%1,0(%3)"
+#else /* __s390x__ */
+                             "   llihh %1,0x8000\n"
+                             "0: csg %0,%1,0(%3)\n"
+#endif /* __s390x__ */
+                             : "=d" (result), "=&d" (reg), "=m" (rw->lock)
+                             : "a" (&rw->lock), "m" (rw->lock), "0" (0UL)
+                             : "cc", "memory" );
+        return result == 0;
+}
+
+#endif /* __ASM_SPINLOCK_H */
diff --git a/include/asm-s390/stat.h b/include/asm-s390/stat.h
new file mode 100644
index 000000000000..d92959eebb65
--- /dev/null
+++ b/include/asm-s390/stat.h
@@ -0,0 +1,105 @@
+/*
+ *  include/asm-s390/stat.h
+ *
+ *  S390 version
+ *
+ *  Derived from "include/asm-i386/stat.h"
+ */
+
+#ifndef _S390_STAT_H
+#define _S390_STAT_H
+
+#ifndef __s390x__
+struct __old_kernel_stat {
+        unsigned short st_dev;
+        unsigned short st_ino;
+        unsigned short st_mode;
+        unsigned short st_nlink;
+        unsigned short st_uid;
+        unsigned short st_gid;
+        unsigned short st_rdev;
+        unsigned long  st_size;
+        unsigned long  st_atime;
+        unsigned long  st_mtime;
+        unsigned long  st_ctime;
+};
+
+struct stat {
+        unsigned short st_dev;
+        unsigned short __pad1;
+        unsigned long  st_ino;
+        unsigned short st_mode;
+        unsigned short st_nlink;
+        unsigned short st_uid;
+        unsigned short st_gid;
+        unsigned short st_rdev;
+        unsigned short __pad2;
+        unsigned 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;
+};
+
+/* This matches struct stat64 in glibc2.1, hence the absolutely
+ * insane amounts of padding around dev_t's.
+ */
+struct stat64 {
+        unsigned long long      st_dev;
+        unsigned int    __pad1;
+#define STAT64_HAS_BROKEN_ST_INO        1
+        unsigned long   __st_ino;
+        unsigned int    st_mode;
+        unsigned int    st_nlink;
+        unsigned long   st_uid;
+        unsigned long   st_gid;
+        unsigned long long      st_rdev;
+        unsigned int    __pad3;
+        long long       st_size;
+        unsigned long   st_blksize;
+        unsigned char   __pad4[4];
+        unsigned long   __pad5;     /* future possible st_blocks high bits */
+        unsigned long   st_blocks;  /* Number 512-byte blocks allocated. */
+        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;  /* will be high 32 bits of ctime someday */
+        unsigned long long      st_ino;
+};
+
+#else /* __s390x__ */
+
+struct stat {
+        unsigned long  st_dev;
+        unsigned long  st_ino;
+        unsigned long  st_nlink;
+        unsigned int   st_mode;
+        unsigned int   st_uid;
+        unsigned int   st_gid;
+        unsigned int   __pad1;
+        unsigned long  st_rdev;
+        unsigned long  st_size;
+        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  st_blksize;
+        long           st_blocks;
+        unsigned long  __unused[3];
+};
+
+#endif /* __s390x__ */
+
+#define STAT_HAVE_NSEC 1
+
+#endif
diff --git a/include/asm-s390/statfs.h b/include/asm-s390/statfs.h
new file mode 100644
index 000000000000..099a45579190
--- /dev/null
+++ b/include/asm-s390/statfs.h
@@ -0,0 +1,71 @@
+/*
+ *  include/asm-s390/statfs.h
+ *
+ *  S390 version
+ *
+ *  Derived from "include/asm-i386/statfs.h"
+ */
+
+#ifndef _S390_STATFS_H
+#define _S390_STATFS_H
+
+#ifndef __s390x__
+#include <asm-generic/statfs.h>
+#else
+
+#ifndef __KERNEL_STRICT_NAMES
+
+#include <linux/types.h>
+
+typedef __kernel_fsid_t fsid_t;
+
+#endif
+
+/*
+ * This is ugly -- we're already 64-bit clean, so just duplicate the 
+ * definitions.
+ */
+struct statfs {
+        int  f_type;
+        int  f_bsize;
+        long f_blocks;
+        long f_bfree;
+        long f_bavail;
+        long f_files;
+        long f_ffree;
+        __kernel_fsid_t f_fsid;
+        int  f_namelen;
+        int  f_frsize;
+        int  f_spare[5];
+};
+
+struct statfs64 {
+        int  f_type;
+        int  f_bsize;
+        long f_blocks;
+        long f_bfree;
+        long f_bavail;
+        long f_files;
+        long f_ffree;
+        __kernel_fsid_t f_fsid;
+        int  f_namelen;
+        int  f_frsize;
+        int  f_spare[5];
+};
+
+struct compat_statfs64 {
+        __u32 f_type;
+        __u32 f_bsize;
+        __u64 f_blocks;
+        __u64 f_bfree;
+        __u64 f_bavail;
+        __u64 f_files;
+        __u64 f_ffree;
+        __kernel_fsid_t f_fsid;
+        __u32 f_namelen;
+        __u32 f_frsize;
+        __u32 f_spare[5];
+};
+
+#endif /* __s390x__ */
+#endif
diff --git a/include/asm-s390/string.h b/include/asm-s390/string.h
new file mode 100644
index 000000000000..23a4c390489f
--- /dev/null
+++ b/include/asm-s390/string.h
@@ -0,0 +1,137 @@
+/*
+ *  include/asm-s390/string.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com),
+ */
+
+#ifndef _S390_STRING_H_
+#define _S390_STRING_H_
+
+#ifdef __KERNEL__
+
+#ifndef _LINUX_TYPES_H
+#include <linux/types.h>
+#endif
+
+#define __HAVE_ARCH_MEMCHR      /* inline & arch function */
+#define __HAVE_ARCH_MEMCMP      /* arch function */
+#define __HAVE_ARCH_MEMCPY      /* gcc builtin & arch function */
+#define __HAVE_ARCH_MEMSCAN     /* inline & arch function */
+#define __HAVE_ARCH_MEMSET      /* gcc builtin & arch function */
+#define __HAVE_ARCH_STRCAT      /* inline & arch function */
+#define __HAVE_ARCH_STRCMP      /* arch function */
+#define __HAVE_ARCH_STRCPY      /* inline & arch function */
+#define __HAVE_ARCH_STRLCAT     /* arch function */
+#define __HAVE_ARCH_STRLCPY     /* arch function */
+#define __HAVE_ARCH_STRLEN      /* inline & arch function */
+#define __HAVE_ARCH_STRNCAT     /* arch function */
+#define __HAVE_ARCH_STRNCPY     /* arch function */
+#define __HAVE_ARCH_STRNLEN     /* inline & arch function */
+#define __HAVE_ARCH_STRRCHR     /* arch function */
+#define __HAVE_ARCH_STRSTR      /* arch function */
+
+/* Prototypes for non-inlined arch strings functions. */
+extern int memcmp(const void *, const void *, size_t);
+extern void *memcpy(void *, const void *, size_t);
+extern void *memset(void *, int, size_t);
+extern int strcmp(const char *,const char *);
+extern size_t strlcat(char *, const char *, size_t);
+extern size_t strlcpy(char *, const char *, size_t);
+extern char *strncat(char *, const char *, size_t);
+extern char *strncpy(char *, const char *, size_t);
+extern char *strrchr(const char *, int);
+extern char *strstr(const char *, const char *);
+
+#undef __HAVE_ARCH_MEMMOVE
+#undef __HAVE_ARCH_STRCHR
+#undef __HAVE_ARCH_STRNCHR
+#undef __HAVE_ARCH_STRNCMP
+#undef __HAVE_ARCH_STRNICMP
+#undef __HAVE_ARCH_STRPBRK
+#undef __HAVE_ARCH_STRSEP
+#undef __HAVE_ARCH_STRSPN
+
+#if !defined(IN_ARCH_STRING_C)
+
+static inline void *memchr(const void * s, int c, size_t n)
+{
+        register int r0 asm("0") = (char) c;
+        const void *ret = s + n;
+
+        asm volatile ("0: srst  %0,%1\n"
+                      "   jo    0b\n"
+                      "   jl    1f\n"
+                      "   la    %0,0\n"
+                      "1:"
+                      : "+a" (ret), "+&a" (s) : "d" (r0) : "cc" );
+        return (void *) ret;
+}
+
+static inline void *memscan(void *s, int c, size_t n)
+{
+        register int r0 asm("0") = (char) c;
+        const void *ret = s + n;
+
+        asm volatile ("0: srst  %0,%1\n"
+                      "   jo    0b\n"
+                      : "+a" (ret), "+&a" (s) : "d" (r0) : "cc" );
+        return (void *) ret;
+}
+
+static inline char *strcat(char *dst, const char *src)
+{
+        register int r0 asm("0") = 0;
+        unsigned long dummy;
+        char *ret = dst;
+
+        asm volatile ("0: srst  %0,%1\n"
+                      "   jo    0b\n"
+                      "1: mvst  %0,%2\n"
+                      "   jo    1b"
+                      : "=&a" (dummy), "+a" (dst), "+a" (src)
+                      : "d" (r0), "0" (0) : "cc", "memory" );
+        return ret;
+}
+
+static inline char *strcpy(char *dst, const char *src)
+{
+        register int r0 asm("0") = 0;
+        char *ret = dst;
+
+        asm volatile ("0: mvst  %0,%1\n"
+                      "   jo    0b"
+                      : "+&a" (dst), "+&a" (src) : "d" (r0)
+                      : "cc", "memory" );
+        return ret;
+}
+
+static inline size_t strlen(const char *s)
+{
+        register unsigned long r0 asm("0") = 0;
+        const char *tmp = s;
+
+        asm volatile ("0: srst  %0,%1\n"
+                      "   jo    0b"
+                      : "+d" (r0), "+a" (tmp) :  : "cc" );
+        return r0 - (unsigned long) s;
+}
+
+static inline size_t strnlen(const char * s, size_t n)
+{
+        register int r0 asm("0") = 0;
+        const char *tmp = s;
+        const char *end = s + n;
+
+        asm volatile ("0: srst  %0,%1\n"
+                      "   jo    0b"
+                      : "+a" (end), "+a" (tmp) : "d" (r0)  : "cc" );
+        return end - s;
+}
+
+#endif /* !IN_ARCH_STRING_C */
+
+#endif /* __KERNEL__ */
+
+#endif /* __S390_STRING_H_ */
diff --git a/include/asm-s390/suspend.h b/include/asm-s390/suspend.h
new file mode 100644
index 000000000000..1f34580e67a7
--- /dev/null
+++ b/include/asm-s390/suspend.h
@@ -0,0 +1,5 @@
+#ifndef __ASM_S390_SUSPEND_H
+#define __ASM_S390_SUSPEND_H
+
+#endif
+
diff --git a/include/asm-s390/system.h b/include/asm-s390/system.h
new file mode 100644
index 000000000000..81514d76edcf
--- /dev/null
+++ b/include/asm-s390/system.h
@@ -0,0 +1,477 @@
+/*
+ *  include/asm-s390/system.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com),
+ *
+ *  Derived from "include/asm-i386/system.h"
+ */
+
+#ifndef __ASM_SYSTEM_H
+#define __ASM_SYSTEM_H
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <asm/types.h>
+#include <asm/ptrace.h>
+#include <asm/setup.h>
+
+#ifdef __KERNEL__
+
+struct task_struct;
+
+extern struct task_struct *__switch_to(void *, void *);
+
+#ifdef __s390x__
+#define __FLAG_SHIFT 56
+#else /* ! __s390x__ */
+#define __FLAG_SHIFT 24
+#endif /* ! __s390x__ */
+
+static inline void save_fp_regs(s390_fp_regs *fpregs)
+{
+        asm volatile (
+                "   std   0,8(%1)\n"
+                "   std   2,24(%1)\n"
+                "   std   4,40(%1)\n"
+                "   std   6,56(%1)"
+                : "=m" (*fpregs) : "a" (fpregs), "m" (*fpregs) : "memory" );
+        if (!MACHINE_HAS_IEEE)
+                return;
+        asm volatile(
+                "   stfpc 0(%1)\n"
+                "   std   1,16(%1)\n"
+                "   std   3,32(%1)\n"
+                "   std   5,48(%1)\n"
+                "   std   7,64(%1)\n"
+                "   std   8,72(%1)\n"
+                "   std   9,80(%1)\n"
+                "   std   10,88(%1)\n"
+                "   std   11,96(%1)\n"
+                "   std   12,104(%1)\n"
+                "   std   13,112(%1)\n"
+                "   std   14,120(%1)\n"
+                "   std   15,128(%1)\n"
+                : "=m" (*fpregs) : "a" (fpregs), "m" (*fpregs) : "memory" );
+}
+
+static inline void restore_fp_regs(s390_fp_regs *fpregs)
+{
+        asm volatile (
+                "   ld    0,8(%0)\n"
+                "   ld    2,24(%0)\n"
+                "   ld    4,40(%0)\n"
+                "   ld    6,56(%0)"
+                : : "a" (fpregs), "m" (*fpregs) );
+        if (!MACHINE_HAS_IEEE)
+                return;
+        asm volatile(
+                "   lfpc  0(%0)\n"
+                "   ld    1,16(%0)\n"
+                "   ld    3,32(%0)\n"
+                "   ld    5,48(%0)\n"
+                "   ld    7,64(%0)\n"
+                "   ld    8,72(%0)\n"
+                "   ld    9,80(%0)\n"
+                "   ld    10,88(%0)\n"
+                "   ld    11,96(%0)\n"
+                "   ld    12,104(%0)\n"
+                "   ld    13,112(%0)\n"
+                "   ld    14,120(%0)\n"
+                "   ld    15,128(%0)\n"
+                : : "a" (fpregs), "m" (*fpregs) );
+}
+
+static inline void save_access_regs(unsigned int *acrs)
+{
+        asm volatile ("stam 0,15,0(%0)" : : "a" (acrs) : "memory" );
+}
+
+static inline void restore_access_regs(unsigned int *acrs)
+{
+        asm volatile ("lam 0,15,0(%0)" : : "a" (acrs) );
+}
+
+#define switch_to(prev,next,last) do {                                       \
+        if (prev == next)                                                    \
+                break;                                                       \
+        save_fp_regs(&prev->thread.fp_regs);                                 \
+        restore_fp_regs(&next->thread.fp_regs);                              \
+        save_access_regs(&prev->thread.acrs[0]);                             \
+        restore_access_regs(&next->thread.acrs[0]);                          \
+        prev = __switch_to(prev,next);                                       \
+} while (0)
+
+#define prepare_arch_switch(rq, next)   do { } while(0)
+#define task_running(rq, p)             ((rq)->curr == (p))
+
+#ifdef CONFIG_VIRT_CPU_ACCOUNTING
+extern void account_user_vtime(struct task_struct *);
+extern void account_system_vtime(struct task_struct *);
+
+#define finish_arch_switch(rq, prev) do {                                    \
+        set_fs(current->thread.mm_segment);                                  \
+        spin_unlock(&(rq)->lock);                                            \
+        account_system_vtime(prev);                                          \
+        local_irq_enable();                                                  \
+} while (0)
+
+#else
+
+#define finish_arch_switch(rq, prev) do {                                    \
+        set_fs(current->thread.mm_segment);                                  \
+        spin_unlock_irq(&(rq)->lock);                                        \
+} while (0)
+
+#endif
+
+#define nop() __asm__ __volatile__ ("nop")
+
+#define xchg(ptr,x) \
+  ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(void *)(ptr),sizeof(*(ptr))))
+
+static inline unsigned long __xchg(unsigned long x, void * ptr, int size)
+{
+        unsigned long addr, old;
+        int shift;
+
+        switch (size) {
+        case 1:
+                addr = (unsigned long) ptr;
+                shift = (3 ^ (addr & 3)) << 3;
+                addr ^= addr & 3;
+                asm volatile(
+                        "    l   %0,0(%4)\n"
+                        "0:  lr  0,%0\n"
+                        "    nr  0,%3\n"
+                        "    or  0,%2\n"
+                        "    cs  %0,0,0(%4)\n"
+                        "    jl  0b\n"
+                        : "=&d" (old), "=m" (*(int *) addr)
+                        : "d" (x << shift), "d" (~(255 << shift)), "a" (addr),
+                          "m" (*(int *) addr) : "memory", "cc", "0" );
+                x = old >> shift;
+                break;
+        case 2:
+                addr = (unsigned long) ptr;
+                shift = (2 ^ (addr & 2)) << 3;
+                addr ^= addr & 2;
+                asm volatile(
+                        "    l   %0,0(%4)\n"
+                        "0:  lr  0,%0\n"
+                        "    nr  0,%3\n"
+                        "    or  0,%2\n"
+                        "    cs  %0,0,0(%4)\n"
+                        "    jl  0b\n"
+                        : "=&d" (old), "=m" (*(int *) addr)
+                        : "d" (x << shift), "d" (~(65535 << shift)), "a" (addr),
+                          "m" (*(int *) addr) : "memory", "cc", "0" );
+                x = old >> shift;
+                break;
+        case 4:
+                asm volatile (
+                        "    l   %0,0(%3)\n"
+                        "0:  cs  %0,%2,0(%3)\n"
+                        "    jl  0b\n"
+                        : "=&d" (old), "=m" (*(int *) ptr)
+                        : "d" (x), "a" (ptr), "m" (*(int *) ptr)
+                        : "memory", "cc" );
+                x = old;
+                break;
+#ifdef __s390x__
+        case 8:
+                asm volatile (
+                        "    lg  %0,0(%3)\n"
+                        "0:  csg %0,%2,0(%3)\n"
+                        "    jl  0b\n"
+                        : "=&d" (old), "=m" (*(long *) ptr)
+                        : "d" (x), "a" (ptr), "m" (*(long *) ptr)
+                        : "memory", "cc" );
+                x = old;
+                break;
+#endif /* __s390x__ */
+        }
+        return x;
+}
+
+/*
+ * Atomic compare and exchange.  Compare OLD with MEM, if identical,
+ * store NEW in MEM.  Return the initial value in MEM.  Success is
+ * indicated by comparing RETURN with OLD.
+ */
+
+#define __HAVE_ARCH_CMPXCHG 1
+
+#define cmpxchg(ptr,o,n)\
+        ((__typeof__(*(ptr)))__cmpxchg((ptr),(unsigned long)(o),\
+                                        (unsigned long)(n),sizeof(*(ptr))))
+
+static inline unsigned long
+__cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size)
+{
+        unsigned long addr, prev, tmp;
+        int shift;
+
+        switch (size) {
+        case 1:
+                addr = (unsigned long) ptr;
+                shift = (3 ^ (addr & 3)) << 3;
+                addr ^= addr & 3;
+                asm volatile(
+                        "    l   %0,0(%4)\n"
+                        "0:  nr  %0,%5\n"
+                        "    lr  %1,%0\n"
+                        "    or  %0,%2\n"
+                        "    or  %1,%3\n"
+                        "    cs  %0,%1,0(%4)\n"
+                        "    jnl 1f\n"
+                        "    xr  %1,%0\n"
+                        "    nr  %1,%5\n"
+                        "    jnz 0b\n"
+                        "1:"
+                        : "=&d" (prev), "=&d" (tmp)
+                        : "d" (old << shift), "d" (new << shift), "a" (ptr),
+                          "d" (~(255 << shift))
+                        : "memory", "cc" );
+                return prev >> shift;
+        case 2:
+                addr = (unsigned long) ptr;
+                shift = (2 ^ (addr & 2)) << 3;
+                addr ^= addr & 2;
+                asm volatile(
+                        "    l   %0,0(%4)\n"
+                        "0:  nr  %0,%5\n"
+                        "    lr  %1,%0\n"
+                        "    or  %0,%2\n"
+                        "    or  %1,%3\n"
+                        "    cs  %0,%1,0(%4)\n"
+                        "    jnl 1f\n"
+                        "    xr  %1,%0\n"
+                        "    nr  %1,%5\n"
+                        "    jnz 0b\n"
+                        "1:"
+                        : "=&d" (prev), "=&d" (tmp)
+                        : "d" (old << shift), "d" (new << shift), "a" (ptr),
+                          "d" (~(65535 << shift))
+                        : "memory", "cc" );
+                return prev >> shift;
+        case 4:
+                asm volatile (
+                        "    cs  %0,%2,0(%3)\n"
+                        : "=&d" (prev) : "0" (old), "d" (new), "a" (ptr)
+                        : "memory", "cc" );
+                return prev;
+#ifdef __s390x__
+        case 8:
+                asm volatile (
+                        "    csg %0,%2,0(%3)\n"
+                        : "=&d" (prev) : "0" (old), "d" (new), "a" (ptr)
+                        : "memory", "cc" );
+                return prev;
+#endif /* __s390x__ */
+        }
+        return old;
+}
+
+/*
+ * Force strict CPU ordering.
+ * And yes, this is required on UP too when we're talking
+ * to devices.
+ *
+ * This is very similar to the ppc eieio/sync instruction in that is
+ * does a checkpoint syncronisation & makes sure that 
+ * all memory ops have completed wrt other CPU's ( see 7-15 POP  DJB ).
+ */
+
+#define eieio()  __asm__ __volatile__ ( "bcr 15,0" : : : "memory" ) 
+# define SYNC_OTHER_CORES(x)   eieio() 
+#define mb()    eieio()
+#define rmb()   eieio()
+#define wmb()   eieio()
+#define read_barrier_depends() do { } while(0)
+#define smp_mb()       mb()
+#define smp_rmb()      rmb()
+#define smp_wmb()      wmb()
+#define smp_read_barrier_depends()    read_barrier_depends()
+#define smp_mb__before_clear_bit()     smp_mb()
+#define smp_mb__after_clear_bit()      smp_mb()
+
+
+#define set_mb(var, value)      do { var = value; mb(); } while (0)
+#define set_wmb(var, value)     do { var = value; wmb(); } while (0)
+
+/* interrupt control.. */
+#define local_irq_enable() ({ \
+        unsigned long  __dummy; \
+        __asm__ __volatile__ ( \
+                "stosm 0(%1),0x03" \
+                : "=m" (__dummy) : "a" (&__dummy) : "memory" ); \
+        })
+
+#define local_irq_disable() ({ \
+        unsigned long __flags; \
+        __asm__ __volatile__ ( \
+                "stnsm 0(%1),0xfc" : "=m" (__flags) : "a" (&__flags) ); \
+        __flags; \
+        })
+
+#define local_save_flags(x) \
+        __asm__ __volatile__("stosm 0(%1),0" : "=m" (x) : "a" (&x), "m" (x) )
+
+#define local_irq_restore(x) \
+        __asm__ __volatile__("ssm   0(%0)" : : "a" (&x), "m" (x) : "memory")
+
+#define irqs_disabled()                 \
+({                                      \
+        unsigned long flags;            \
+        local_save_flags(flags);        \
+        !((flags >> __FLAG_SHIFT) & 3); \
+})
+
+#ifdef __s390x__
+
+#define __load_psw(psw) \
+        __asm__ __volatile__("lpswe 0(%0)" : : "a" (&psw), "m" (psw) : "cc" );
+
+#define __ctl_load(array, low, high) ({ \
+        typedef struct { char _[sizeof(array)]; } addrtype; \
+        __asm__ __volatile__ ( \
+                "   bras  1,0f\n" \
+                "   lctlg 0,0,0(%0)\n" \
+                "0: ex    %1,0(1)" \
+                : : "a" (&array), "a" (((low)<<4)+(high)), \
+                    "m" (*(addrtype *)(array)) : "1" ); \
+        })
+
+#define __ctl_store(array, low, high) ({ \
+        typedef struct { char _[sizeof(array)]; } addrtype; \
+        __asm__ __volatile__ ( \
+                "   bras  1,0f\n" \
+                "   stctg 0,0,0(%1)\n" \
+                "0: ex    %2,0(1)" \
+                : "=m" (*(addrtype *)(array)) \
+                : "a" (&array), "a" (((low)<<4)+(high)) : "1" ); \
+        })
+
+#define __ctl_set_bit(cr, bit) ({ \
+        __u8 __dummy[24]; \
+        __asm__ __volatile__ ( \
+                "    bras  1,0f\n"       /* skip indirect insns */ \
+                "    stctg 0,0,0(%1)\n" \
+                "    lctlg 0,0,0(%1)\n" \
+                "0:  ex    %2,0(1)\n"    /* execute stctl */ \
+                "    lg    0,0(%1)\n" \
+                "    ogr   0,%3\n"       /* set the bit */ \
+                "    stg   0,0(%1)\n" \
+                "1:  ex    %2,6(1)"      /* execute lctl */ \
+                : "=m" (__dummy) \
+                : "a" ((((unsigned long) &__dummy) + 7) & ~7UL), \
+                  "a" (cr*17), "a" (1L<<(bit)) \
+                : "cc", "0", "1" ); \
+        })
+
+#define __ctl_clear_bit(cr, bit) ({ \
+        __u8 __dummy[16]; \
+        __asm__ __volatile__ ( \
+                "    bras  1,0f\n"       /* skip indirect insns */ \
+                "    stctg 0,0,0(%1)\n" \
+                "    lctlg 0,0,0(%1)\n" \
+                "0:  ex    %2,0(1)\n"    /* execute stctl */ \
+                "    lg    0,0(%1)\n" \
+                "    ngr   0,%3\n"       /* set the bit */ \
+                "    stg   0,0(%1)\n" \
+                "1:  ex    %2,6(1)"      /* execute lctl */ \
+                : "=m" (__dummy) \
+                : "a" ((((unsigned long) &__dummy) + 7) & ~7UL), \
+                  "a" (cr*17), "a" (~(1L<<(bit))) \
+                : "cc", "0", "1" ); \
+        })
+
+#else /* __s390x__ */
+
+#define __load_psw(psw) \
+        __asm__ __volatile__("lpsw 0(%0)" : : "a" (&psw) : "cc" );
+
+#define __ctl_load(array, low, high) ({ \
+        typedef struct { char _[sizeof(array)]; } addrtype; \
+        __asm__ __volatile__ ( \
+                "   bras  1,0f\n" \
+                "   lctl 0,0,0(%0)\n" \
+                "0: ex    %1,0(1)" \
+                : : "a" (&array), "a" (((low)<<4)+(high)), \
+                    "m" (*(addrtype *)(array)) : "1" ); \
+        })
+
+#define __ctl_store(array, low, high) ({ \
+        typedef struct { char _[sizeof(array)]; } addrtype; \
+        __asm__ __volatile__ ( \
+                "   bras  1,0f\n" \
+                "   stctl 0,0,0(%1)\n" \
+                "0: ex    %2,0(1)" \
+                : "=m" (*(addrtype *)(array)) \
+                : "a" (&array), "a" (((low)<<4)+(high)): "1" ); \
+        })
+
+#define __ctl_set_bit(cr, bit) ({ \
+        __u8 __dummy[16]; \
+        __asm__ __volatile__ ( \
+                "    bras  1,0f\n"       /* skip indirect insns */ \
+                "    stctl 0,0,0(%1)\n" \
+                "    lctl  0,0,0(%1)\n" \
+                "0:  ex    %2,0(1)\n"    /* execute stctl */ \
+                "    l     0,0(%1)\n" \
+                "    or    0,%3\n"       /* set the bit */ \
+                "    st    0,0(%1)\n" \
+                "1:  ex    %2,4(1)"      /* execute lctl */ \
+                : "=m" (__dummy) \
+                : "a" ((((unsigned long) &__dummy) + 7) & ~7UL), \
+                  "a" (cr*17), "a" (1<<(bit)) \
+                : "cc", "0", "1" ); \
+        })
+
+#define __ctl_clear_bit(cr, bit) ({ \
+        __u8 __dummy[16]; \
+        __asm__ __volatile__ ( \
+                "    bras  1,0f\n"       /* skip indirect insns */ \
+                "    stctl 0,0,0(%1)\n" \
+                "    lctl  0,0,0(%1)\n" \
+                "0:  ex    %2,0(1)\n"    /* execute stctl */ \
+                "    l     0,0(%1)\n" \
+                "    nr    0,%3\n"       /* set the bit */ \
+                "    st    0,0(%1)\n" \
+                "1:  ex    %2,4(1)"      /* execute lctl */ \
+                : "=m" (__dummy) \
+                : "a" ((((unsigned long) &__dummy) + 7) & ~7UL), \
+                  "a" (cr*17), "a" (~(1<<(bit))) \
+                : "cc", "0", "1" ); \
+        })
+#endif /* __s390x__ */
+
+/* For spinlocks etc */
+#define local_irq_save(x)       ((x) = local_irq_disable())
+
+#ifdef CONFIG_SMP
+
+extern void smp_ctl_set_bit(int cr, int bit);
+extern void smp_ctl_clear_bit(int cr, int bit);
+#define ctl_set_bit(cr, bit) smp_ctl_set_bit(cr, bit)
+#define ctl_clear_bit(cr, bit) smp_ctl_clear_bit(cr, bit)
+
+#else
+
+#define ctl_set_bit(cr, bit) __ctl_set_bit(cr, bit)
+#define ctl_clear_bit(cr, bit) __ctl_clear_bit(cr, bit)
+
+#endif /* CONFIG_SMP */
+
+extern void (*_machine_restart)(char *command);
+extern void (*_machine_halt)(void);
+extern void (*_machine_power_off)(void);
+
+#define arch_align_stack(x) (x)
+
+#endif /* __KERNEL__ */
+
+#endif
+
diff --git a/include/asm-s390/tape390.h b/include/asm-s390/tape390.h
new file mode 100644
index 000000000000..f1d66ba0deef
--- /dev/null
+++ b/include/asm-s390/tape390.h
@@ -0,0 +1,39 @@
+/*************************************************************************
+ *
+ * tape390.h
+ *         enables user programs to display messages on the tape device
+ *
+ *  S390 and zSeries version
+ *         Copyright (C) 2001 IBM Corporation
+ *         Author(s): Despina Papadopoulou <despina_p@de.ibm.com>
+ *
+ *************************************************************************/
+
+#ifndef _TAPE390_H
+#define _TAPE390_H
+
+#define TAPE390_DISPLAY _IOW('d', 1, struct display_struct)
+
+/*
+ * The TAPE390_DISPLAY ioctl calls the Load Display command
+ * which transfers 17 bytes of data from the channel to the subsystem:
+ *     - 1 format control byte, and
+ *     - two 8-byte messages
+ *
+ * Format control byte:
+ *   0-2: New Message Overlay
+ *     3: Alternate Messages
+ *     4: Blink Message
+ *     5: Display Low/High Message
+ *     6: Reserved
+ *     7: Automatic Load Request
+ *
+ */
+
+typedef struct display_struct {
+        char cntrl;
+        char message1[8];
+        char message2[8];
+} display_struct;
+
+#endif 
diff --git a/include/asm-s390/termbits.h b/include/asm-s390/termbits.h
new file mode 100644
index 000000000000..eb3f8bfabf61
--- /dev/null
+++ b/include/asm-s390/termbits.h
@@ -0,0 +1,181 @@
+/*
+ *  include/asm-s390/termbits.h
+ *
+ *  S390 version
+ *
+ *  Derived from "include/asm-i386/termbits.h"
+ */
+
+#ifndef __ARCH_S390_TERMBITS_H__
+#define __ARCH_S390_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 */
+};
+
+/* 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  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 (not used) */
+#define CMSPAR    010000000000          /* mark or space (stick) parity */
+#define CRTSCTS   020000000000          /* flow control */
+
+/* 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
+
+/* 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
diff --git a/include/asm-s390/termios.h b/include/asm-s390/termios.h
new file mode 100644
index 000000000000..d1e29cca54c9
--- /dev/null
+++ b/include/asm-s390/termios.h
@@ -0,0 +1,114 @@
+/*
+ *  include/asm-s390/termios.h
+ *
+ *  S390 version
+ *
+ *  Derived from "include/asm-i386/termios.h"
+ */
+
+#ifndef _S390_TERMIOS_H
+#define _S390_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 */
+
+/* line disciplines */
+#define N_TTY           0
+#define N_SLIP          1
+#define N_MOUSE         2
+#define N_PPP           3
+#define N_STRIP         4
+#define N_AX25          5
+#define N_X25           6       /* X.25 async */
+#define N_6PACK         7
+#define N_MASC          8       /* Reserved for Mobitex module <kaz@cafe.net> */
+#define N_R3964         9       /* Reserved for Simatic R3964 module */
+#define N_PROFIBUS_FDL  10      /* Reserved for Profibus <Dave@mvhi.com> */
+#define N_IRDA          11      /* Linux IR - http://irda.sourceforge.net/ */
+#define N_SMSBLOCK      12      /* SMS block mode - for talking to GSM data cards about SMS messages */
+#define N_HDLC          13      /* synchronous HDLC */
+#define N_SYNC_PPP      14      /* synchronous PPP */
+#define N_HCI           15  /* Bluetooth HCI UART */
+
+#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); \
+        (termios)->x = (0xffff0000 & ((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 termios))
+#define kernel_termios_to_user_termios(u, k) copy_to_user(u, k, sizeof(struct termios))
+
+#endif  /* __KERNEL__ */
+
+#endif  /* _S390_TERMIOS_H */
diff --git a/include/asm-s390/thread_info.h b/include/asm-s390/thread_info.h
new file mode 100644
index 000000000000..aade85c53a63
--- /dev/null
+++ b/include/asm-s390/thread_info.h
@@ -0,0 +1,120 @@
+/*
+ *  include/asm-s390/thread_info.h
+ *
+ *  S390 version
+ *    Copyright (C) 2002 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
+ */
+
+#ifndef _ASM_THREAD_INFO_H
+#define _ASM_THREAD_INFO_H
+
+#ifdef __KERNEL__
+
+/*
+ * Size of kernel stack for each process
+ */
+#ifndef __s390x__
+#ifndef __SMALL_STACK
+#define THREAD_ORDER 1
+#define ASYNC_ORDER  1
+#else
+#define THREAD_ORDER 0
+#define ASYNC_ORDER  0
+#endif
+#else /* __s390x__ */
+#ifndef __SMALL_STACK
+#define THREAD_ORDER 2
+#define ASYNC_ORDER  2
+#else
+#define THREAD_ORDER 1
+#define ASYNC_ORDER  1
+#endif
+#endif /* __s390x__ */
+
+#define THREAD_SIZE (PAGE_SIZE << THREAD_ORDER)
+#define ASYNC_SIZE  (PAGE_SIZE << ASYNC_ORDER)
+
+#ifndef __ASSEMBLY__
+#include <asm/processor.h>
+#include <asm/lowcore.h>
+
+/*
+ * low level task data that entry.S needs immediate access to
+ * - this struct should fit entirely inside of one cache line
+ * - this struct shares the supervisor stack pages
+ * - if the contents of this structure are changed, the assembly constants must also be changed
+ */
+struct thread_info {
+        struct task_struct      *task;          /* main task structure */
+        struct exec_domain      *exec_domain;   /* execution domain */
+        unsigned long           flags;          /* low level flags */
+        unsigned int            cpu;            /* current CPU */
+        unsigned int            preempt_count; /* 0 => preemptable */
+        struct restart_block    restart_block;
+};
+
+/*
+ * macros/functions for gaining access to the thread information structure
+ */
+#define INIT_THREAD_INFO(tsk)                   \
+{                                               \
+        .task           = &tsk,                 \
+        .exec_domain    = &default_exec_domain, \
+        .flags          = 0,                    \
+        .cpu            = 0,                    \
+        .restart_block  = {                     \
+                .fn = do_no_restart_syscall,    \
+        },                                      \
+}
+
+#define init_thread_info        (init_thread_union.thread_info)
+#define init_stack              (init_thread_union.stack)
+
+/* how to get the thread information struct from C */
+static inline struct thread_info *current_thread_info(void)
+{
+        return (struct thread_info *)((*(unsigned long *) __LC_KERNEL_STACK)-THREAD_SIZE);
+}
+
+/* thread information allocation */
+#define alloc_thread_info(tsk) ((struct thread_info *) \
+        __get_free_pages(GFP_KERNEL,THREAD_ORDER))
+#define free_thread_info(ti) free_pages((unsigned long) (ti),THREAD_ORDER)
+#define get_thread_info(ti) get_task_struct((ti)->task)
+#define put_thread_info(ti) put_task_struct((ti)->task)
+
+#endif
+
+/*
+ * thread information flags bit numbers
+ */
+#define TIF_SYSCALL_TRACE       0       /* syscall trace active */
+#define TIF_NOTIFY_RESUME       1       /* resumption notification requested */
+#define TIF_SIGPENDING          2       /* signal pending */
+#define TIF_NEED_RESCHED        3       /* rescheduling necessary */
+#define TIF_RESTART_SVC         4       /* restart svc with new svc number */
+#define TIF_SYSCALL_AUDIT       5       /* syscall auditing active */
+#define TIF_SINGLE_STEP         6       /* deliver sigtrap on return to user */
+#define TIF_USEDFPU             16      /* FPU was used by this task this quantum (SMP) */
+#define TIF_POLLING_NRFLAG      17      /* true if poll_idle() is polling 
+                                           TIF_NEED_RESCHED */
+#define TIF_31BIT               18      /* 32bit process */ 
+#define TIF_MEMDIE              19
+
+#define _TIF_SYSCALL_TRACE      (1<<TIF_SYSCALL_TRACE)
+#define _TIF_NOTIFY_RESUME      (1<<TIF_NOTIFY_RESUME)
+#define _TIF_SIGPENDING         (1<<TIF_SIGPENDING)
+#define _TIF_NEED_RESCHED       (1<<TIF_NEED_RESCHED)
+#define _TIF_RESTART_SVC        (1<<TIF_RESTART_SVC)
+#define _TIF_SYSCALL_AUDIT      (1<<TIF_SYSCALL_AUDIT)
+#define _TIF_SINGLE_STEP        (1<<TIF_SINGLE_STEP)
+#define _TIF_USEDFPU            (1<<TIF_USEDFPU)
+#define _TIF_POLLING_NRFLAG     (1<<TIF_POLLING_NRFLAG)
+#define _TIF_31BIT              (1<<TIF_31BIT)
+
+#endif /* __KERNEL__ */
+
+#define PREEMPT_ACTIVE          0x4000000
+
+#endif /* _ASM_THREAD_INFO_H */
diff --git a/include/asm-s390/timer.h b/include/asm-s390/timer.h
new file mode 100644
index 000000000000..ea0788967c51
--- /dev/null
+++ b/include/asm-s390/timer.h
@@ -0,0 +1,46 @@
+/*
+ *  include/asm-s390/timer.h
+ *
+ *  (C) Copyright IBM Corp. 2003
+ *  Virtual CPU timer
+ *
+ *  Author: Jan Glauber (jang@de.ibm.com)
+ */
+
+#ifndef _ASM_S390_TIMER_H
+#define _ASM_S390_TIMER_H
+
+#include <linux/timer.h>
+
+#define VTIMER_MAX_SLICE (0x7ffffffffffff000LL)
+
+struct vtimer_list {
+        struct list_head entry;
+
+        int cpu;
+        __u64 expires;
+        __u64 interval;
+
+        spinlock_t lock;
+        unsigned long magic;
+
+        void (*function)(unsigned long, struct pt_regs*);
+        unsigned long data;
+};
+
+/* the offset value will wrap after ca. 71 years */
+struct vtimer_queue {
+        struct list_head list;
+        spinlock_t lock;
+        __u64 to_expire;          /* current event expire time */
+        __u64 offset;             /* list offset to zero */
+        __u64 idle;               /* temp var for idle */
+};
+
+extern void init_virt_timer(struct vtimer_list *timer);
+extern void add_virt_timer(void *new);
+extern void add_virt_timer_periodic(void *new);
+extern int mod_virt_timer(struct vtimer_list *timer, __u64 expires);
+extern int del_virt_timer(struct vtimer_list *timer);
+
+#endif
diff --git a/include/asm-s390/timex.h b/include/asm-s390/timex.h
new file mode 100644
index 000000000000..4848057dafe4
--- /dev/null
+++ b/include/asm-s390/timex.h
@@ -0,0 +1,34 @@
+/*
+ *  include/asm-s390/timex.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *
+ *  Derived from "include/asm-i386/timex.h"
+ *    Copyright (C) 1992, Linus Torvalds
+ */
+
+#ifndef _ASM_S390_TIMEX_H
+#define _ASM_S390_TIMEX_H
+
+#define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
+
+typedef unsigned long long cycles_t;
+
+static inline cycles_t get_cycles(void)
+{
+        cycles_t cycles;
+
+        __asm__("stck 0(%1)" : "=m" (cycles) : "a" (&cycles) : "cc");
+        return cycles >> 2;
+}
+
+static inline unsigned long long get_clock (void)
+{
+        unsigned long long clk;
+
+        __asm__("stck 0(%1)" : "=m" (clk) : "a" (&clk) : "cc");
+        return clk;
+}
+
+#endif
diff --git a/include/asm-s390/tlb.h b/include/asm-s390/tlb.h
new file mode 100644
index 000000000000..51bd957b85bd
--- /dev/null
+++ b/include/asm-s390/tlb.h
@@ -0,0 +1,20 @@
+#ifndef _S390_TLB_H
+#define _S390_TLB_H
+
+/*
+ * s390 doesn't need any special per-pte or
+ * per-vma handling..
+ */
+#define tlb_start_vma(tlb, vma) do { } while (0)
+#define tlb_end_vma(tlb, vma) do { } while (0)
+#define __tlb_remove_tlb_entry(tlb, ptep, address) do { } while (0)
+
+/*
+ * .. because we flush the whole mm when it
+ * fills up.
+ */
+#define tlb_flush(tlb) flush_tlb_mm((tlb)->mm)
+
+#include <asm-generic/tlb.h>
+
+#endif
diff --git a/include/asm-s390/tlbflush.h b/include/asm-s390/tlbflush.h
new file mode 100644
index 000000000000..1bb73b0e61fa
--- /dev/null
+++ b/include/asm-s390/tlbflush.h
@@ -0,0 +1,153 @@
+#ifndef _S390_TLBFLUSH_H
+#define _S390_TLBFLUSH_H
+
+#include <linux/config.h>
+#include <linux/mm.h>
+#include <asm/processor.h>
+
+/*
+ * TLB flushing:
+ *
+ *  - flush_tlb() flushes the current mm struct TLBs
+ *  - flush_tlb_all() flushes all processes TLBs 
+ *  - flush_tlb_mm(mm) flushes the specified mm context TLB's
+ *  - flush_tlb_page(vma, vmaddr) flushes one page
+ *  - flush_tlb_range(vma, start, end) flushes a range of pages
+ *  - flush_tlb_kernel_range(start, end) flushes a range of kernel pages
+ *  - flush_tlb_pgtables(mm, start, end) flushes a range of page tables
+ */
+
+/*
+ * S/390 has three ways of flushing TLBs
+ * 'ptlb' does a flush of the local processor
+ * 'csp' flushes the TLBs on all PUs of a SMP
+ * 'ipte' invalidates a pte in a page table and flushes that out of
+ * the TLBs of all PUs of a SMP
+ */
+
+#define local_flush_tlb() \
+do {  __asm__ __volatile__("ptlb": : :"memory"); } while (0)
+
+#ifndef CONFIG_SMP
+
+/*
+ * We always need to flush, since s390 does not flush tlb
+ * on each context switch
+ */
+
+static inline void flush_tlb(void)
+{
+        local_flush_tlb();
+}
+static inline void flush_tlb_all(void)
+{
+        local_flush_tlb();
+}
+static inline void flush_tlb_mm(struct mm_struct *mm) 
+{
+        local_flush_tlb();
+}
+static inline void flush_tlb_page(struct vm_area_struct *vma,
+                                  unsigned long addr)
+{
+        local_flush_tlb();
+}
+static inline void flush_tlb_range(struct vm_area_struct *vma,
+                                   unsigned long start, unsigned long end)
+{
+        local_flush_tlb();
+}
+
+#define flush_tlb_kernel_range(start, end) \
+        local_flush_tlb();
+
+#else
+
+#include <asm/smp.h>
+
+extern void smp_ptlb_all(void);
+
+static inline void global_flush_tlb(void)
+{
+#ifndef __s390x__
+        if (!MACHINE_HAS_CSP) {
+                smp_ptlb_all();
+                return;
+        }
+#endif /* __s390x__ */
+        {
+                register unsigned long addr asm("4");
+                long dummy;
+
+                dummy = 0;
+                addr = ((unsigned long) &dummy) + 1;
+                __asm__ __volatile__ (
+                        "    slr  2,2\n"
+                        "    slr  3,3\n"
+                        "    csp  2,%0"
+                        : : "a" (addr), "m" (dummy) : "cc", "2", "3" );
+        }
+}
+
+/*
+ * We only have to do global flush of tlb if process run since last
+ * flush on any other pu than current. 
+ * If we have threads (mm->count > 1) we always do a global flush, 
+ * since the process runs on more than one processor at the same time.
+ */
+
+static inline void __flush_tlb_mm(struct mm_struct * mm)
+{
+        cpumask_t local_cpumask;
+
+        if (unlikely(cpus_empty(mm->cpu_vm_mask)))
+                return;
+        if (MACHINE_HAS_IDTE) {
+                asm volatile (".insn rrf,0xb98e0000,0,%0,%1,0"
+                              : : "a" (2048),
+                              "a" (__pa(mm->pgd)&PAGE_MASK) : "cc" );
+                return;
+        }
+        preempt_disable();
+        local_cpumask = cpumask_of_cpu(smp_processor_id());
+        if (cpus_equal(mm->cpu_vm_mask, local_cpumask))
+                local_flush_tlb();
+        else
+                global_flush_tlb();
+        preempt_enable();
+}
+
+static inline void flush_tlb(void)
+{
+        __flush_tlb_mm(current->mm);
+}
+static inline void flush_tlb_all(void)
+{
+        global_flush_tlb();
+}
+static inline void flush_tlb_mm(struct mm_struct *mm) 
+{
+        __flush_tlb_mm(mm); 
+}
+static inline void flush_tlb_page(struct vm_area_struct *vma,
+                                  unsigned long addr)
+{
+        __flush_tlb_mm(vma->vm_mm);
+}
+static inline void flush_tlb_range(struct vm_area_struct *vma,
+                                   unsigned long start, unsigned long end)
+{
+        __flush_tlb_mm(vma->vm_mm); 
+}
+
+#define flush_tlb_kernel_range(start, end) global_flush_tlb()
+
+#endif
+
+static inline void flush_tlb_pgtables(struct mm_struct *mm,
+                                      unsigned long start, unsigned long end)
+{
+        /* S/390 does not keep any page table caches in TLB */
+}
+
+#endif /* _S390_TLBFLUSH_H */
diff --git a/include/asm-s390/todclk.h b/include/asm-s390/todclk.h
new file mode 100644
index 000000000000..c7f62055488a
--- /dev/null
+++ b/include/asm-s390/todclk.h
@@ -0,0 +1,23 @@
+/*
+ * File...........: linux/include/asm/todclk.h
+ * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com>
+ * Bugreports.to..: <Linux390@de.ibm.com>
+ * (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 1999,2000
+ *
+ * History of changes (starts July 2000)
+ */
+
+#ifndef __ASM_TODCLK_H
+#define __ASM_TODCLK_H
+
+#ifdef __KERNEL__
+
+#define TOD_uSEC (0x1000ULL)
+#define TOD_mSEC (1000 * TOD_uSEC)
+#define TOD_SEC (1000 * TOD_mSEC)
+#define TOD_MIN (60 * TOD_SEC)
+#define TOD_HOUR (60 * TOD_MIN)
+
+#endif
+
+#endif
diff --git a/include/asm-s390/topology.h b/include/asm-s390/topology.h
new file mode 100644
index 000000000000..613aa64019da
--- /dev/null
+++ b/include/asm-s390/topology.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_S390_TOPOLOGY_H
+#define _ASM_S390_TOPOLOGY_H
+
+#include <asm-generic/topology.h>
+
+#endif /* _ASM_S390_TOPOLOGY_H */
diff --git a/include/asm-s390/types.h b/include/asm-s390/types.h
new file mode 100644
index 000000000000..3fefd61416a5
--- /dev/null
+++ b/include/asm-s390/types.h
@@ -0,0 +1,101 @@
+/*
+ *  include/asm-s390/types.h
+ *
+ *  S390 version
+ *
+ *  Derived from "include/asm-i386/types.h"
+ */
+
+#ifndef _S390_TYPES_H
+#define _S390_TYPES_H
+
+#ifndef __ASSEMBLY__
+
+typedef unsigned short umode_t;
+
+/*
+ * __xx is ok: it doesn't pollute the POSIX namespace. Use these in the
+ * header files exported to user space
+ */
+
+typedef __signed__ char __s8;
+typedef unsigned char __u8;
+
+typedef __signed__ short __s16;
+typedef unsigned short __u16;
+
+typedef __signed__ int __s32;
+typedef unsigned int __u32;
+
+#ifndef __s390x__
+#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
+typedef __signed__ long long __s64;
+typedef unsigned long long __u64;
+#endif
+#else /* __s390x__ */
+typedef __signed__ long __s64;
+typedef unsigned long __u64;
+#endif
+
+/* A address type so that arithmetic can be done on it & it can be upgraded to
+   64 bit when necessary 
+*/
+typedef unsigned long addr_t; 
+typedef __signed__ long saddr_t;
+
+#endif /* __ASSEMBLY__ */
+
+/*
+ * These aren't exported outside the kernel to avoid name space clashes
+ */
+#ifdef __KERNEL__
+
+#ifndef __s390x__
+#define BITS_PER_LONG 32
+#else
+#define BITS_PER_LONG 64
+#endif
+
+#ifndef __ASSEMBLY__
+
+#include <linux/config.h>
+
+typedef signed char s8;
+typedef unsigned char u8;
+
+typedef signed short s16;
+typedef unsigned short u16;
+
+typedef signed int s32;
+typedef unsigned int u32;
+
+#ifndef __s390x__
+typedef signed long long s64;
+typedef unsigned long long u64;
+#else /* __s390x__ */
+typedef signed long s64;
+typedef unsigned  long u64;
+#endif /* __s390x__ */
+
+typedef u32 dma_addr_t;
+
+typedef unsigned int kmem_bufctl_t;
+
+#ifndef __s390x__
+typedef union {
+        unsigned long long pair;
+        struct {
+                unsigned long even;
+                unsigned long odd;
+        } subreg;
+} register_pair;
+
+#ifdef CONFIG_LBD
+typedef u64 sector_t;
+#define HAVE_SECTOR_T
+#endif
+
+#endif /* ! __s390x__   */
+#endif /* __ASSEMBLY__  */
+#endif /* __KERNEL__    */
+#endif /* _S390_TYPES_H */
diff --git a/include/asm-s390/uaccess.h b/include/asm-s390/uaccess.h
new file mode 100644
index 000000000000..a7f43a251f81
--- /dev/null
+++ b/include/asm-s390/uaccess.h
@@ -0,0 +1,436 @@
+/*
+ *  include/asm-s390/uaccess.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999,2000 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Hartmut Penner (hp@de.ibm.com),
+ *               Martin Schwidefsky (schwidefsky@de.ibm.com)
+ *
+ *  Derived from "include/asm-i386/uaccess.h"
+ */
+#ifndef __S390_UACCESS_H
+#define __S390_UACCESS_H
+
+/*
+ * User space memory access functions
+ */
+#include <linux/sched.h>
+#include <linux/errno.h>
+
+#define VERIFY_READ     0
+#define VERIFY_WRITE    1
+
+
+/*
+ * The fs value determines whether argument validity checking should be
+ * performed or not.  If get_fs() == USER_DS, checking is performed, with
+ * get_fs() == KERNEL_DS, checking is bypassed.
+ *
+ * For historical reasons, these macros are grossly misnamed.
+ */
+
+#define MAKE_MM_SEG(a)  ((mm_segment_t) { (a) })
+
+
+#define KERNEL_DS       MAKE_MM_SEG(0)
+#define USER_DS         MAKE_MM_SEG(1)
+
+#define get_ds()        (KERNEL_DS)
+#define get_fs()        (current->thread.mm_segment)
+
+#ifdef __s390x__
+#define set_fs(x) \
+({                                                                      \
+        unsigned long __pto;                                            \
+        current->thread.mm_segment = (x);                               \
+        __pto = current->thread.mm_segment.ar4 ?                        \
+                S390_lowcore.user_asce : S390_lowcore.kernel_asce;      \
+        asm volatile ("lctlg 7,7,%0" : : "m" (__pto) );                 \
+})
+#else
+#define set_fs(x) \
+({                                                                      \
+        unsigned long __pto;                                            \
+        current->thread.mm_segment = (x);                               \
+        __pto = current->thread.mm_segment.ar4 ?                        \
+                S390_lowcore.user_asce : S390_lowcore.kernel_asce;      \
+        asm volatile ("lctl  7,7,%0" : : "m" (__pto) );                 \
+})
+#endif
+
+#define segment_eq(a,b) ((a).ar4 == (b).ar4)
+
+
+#define __access_ok(addr,size) (1)
+
+#define access_ok(type,addr,size) __access_ok(addr,size)
+
+/* this function will go away soon - use access_ok() instead */
+extern inline int __deprecated verify_area(int type, const void __user *addr,
+                                                unsigned long size)
+{
+        return access_ok(type, addr, size) ? 0 : -EFAULT;
+}
+
+/*
+ * The exception table consists of pairs of addresses: the first is the
+ * address of an instruction that is allowed to fault, and the second is
+ * the address at which the program should continue.  No registers are
+ * modified, so it is entirely up to the continuation code to figure out
+ * what to do.
+ *
+ * All the routines below use bits of fixup code that are out of line
+ * with the main instruction path.  This means when everything is well,
+ * we don't even have to jump over them.  Further, they do not intrude
+ * on our cache or tlb entries.
+ */
+
+struct exception_table_entry
+{
+        unsigned long insn, fixup;
+};
+
+#ifndef __s390x__
+#define __uaccess_fixup \
+        ".section .fixup,\"ax\"\n"      \
+        "2: lhi    %0,%4\n"             \
+        "   bras   1,3f\n"              \
+        "   .long  1b\n"                \
+        "3: l      1,0(1)\n"            \
+        "   br     1\n"                 \
+        ".previous\n"                   \
+        ".section __ex_table,\"a\"\n"   \
+        "   .align 4\n"                 \
+        "   .long  0b,2b\n"             \
+        ".previous"
+#define __uaccess_clobber "cc", "1"
+#else /* __s390x__ */
+#define __uaccess_fixup \
+        ".section .fixup,\"ax\"\n"      \
+        "2: lghi   %0,%4\n"             \
+        "   jg     1b\n"                \
+        ".previous\n"                   \
+        ".section __ex_table,\"a\"\n"   \
+        "   .align 8\n"                 \
+        "   .quad  0b,2b\n"             \
+        ".previous"
+#define __uaccess_clobber "cc"
+#endif /* __s390x__ */
+
+/*
+ * These are the main single-value transfer routines.  They automatically
+ * use the right size if we just have the right pointer type.
+ */
+#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
+#define __put_user_asm(x, ptr, err) \
+({                                                              \
+        err = 0;                                                \
+        asm volatile(                                           \
+                "0: mvcs  0(%1,%2),%3,%0\n"                     \
+                "1:\n"                                          \
+                __uaccess_fixup                                 \
+                : "+&d" (err)                                   \
+                : "d" (sizeof(*(ptr))), "a" (ptr), "Q" (x),     \
+                  "K" (-EFAULT)                                 \
+                : __uaccess_clobber );                          \
+})
+#else
+#define __put_user_asm(x, ptr, err) \
+({                                                              \
+        err = 0;                                                \
+        asm volatile(                                           \
+                "0: mvcs  0(%1,%2),0(%3),%0\n"                  \
+                "1:\n"                                          \
+                __uaccess_fixup                                 \
+                : "+&d" (err)                                   \
+                : "d" (sizeof(*(ptr))), "a" (ptr), "a" (&(x)),  \
+                  "K" (-EFAULT), "m" (x)                        \
+                : __uaccess_clobber );                          \
+})
+#endif
+
+#ifndef __CHECKER__
+#define __put_user(x, ptr) \
+({                                                              \
+        __typeof__(*(ptr)) __x = (x);                           \
+        int __pu_err;                                           \
+        switch (sizeof (*(ptr))) {                              \
+        case 1:                                                 \
+        case 2:                                                 \
+        case 4:                                                 \
+        case 8:                                                 \
+                __put_user_asm(__x, ptr, __pu_err);             \
+                break;                                          \
+        default:                                                \
+                __put_user_bad();                               \
+                break;                                          \
+         }                                                      \
+        __pu_err;                                               \
+})
+#else
+#define __put_user(x, ptr)                      \
+({                                              \
+        void __user *p;                         \
+        p = (ptr);                              \
+        0;                                      \
+})
+#endif
+
+#define put_user(x, ptr)                                        \
+({                                                              \
+        might_sleep();                                          \
+        __put_user(x, ptr);                                     \
+})
+
+
+extern int __put_user_bad(void) __attribute__((noreturn));
+
+#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
+#define __get_user_asm(x, ptr, err) \
+({                                                              \
+        err = 0;                                                \
+        asm volatile (                                          \
+                "0: mvcp  %O1(%2,%R1),0(%3),%0\n"               \
+                "1:\n"                                          \
+                __uaccess_fixup                                 \
+                : "+&d" (err), "=Q" (x)                         \
+                : "d" (sizeof(*(ptr))), "a" (ptr),              \
+                  "K" (-EFAULT)                                 \
+                : __uaccess_clobber );                          \
+})
+#else
+#define __get_user_asm(x, ptr, err) \
+({                                                              \
+        err = 0;                                                \
+        asm volatile (                                          \
+                "0: mvcp  0(%2,%5),0(%3),%0\n"                  \
+                "1:\n"                                          \
+                __uaccess_fixup                                 \
+                : "+&d" (err), "=m" (x)                         \
+                : "d" (sizeof(*(ptr))), "a" (ptr),              \
+                  "K" (-EFAULT), "a" (&(x))                     \
+                : __uaccess_clobber );                          \
+})
+#endif
+
+#ifndef __CHECKER__
+#define __get_user(x, ptr)                                      \
+({                                                              \
+        __typeof__(*(ptr)) __x;                                 \
+        int __gu_err;                                           \
+        switch (sizeof(*(ptr))) {                               \
+        case 1:                                                 \
+        case 2:                                                 \
+        case 4:                                                 \
+        case 8:                                                 \
+                __get_user_asm(__x, ptr, __gu_err);             \
+                break;                                          \
+        default:                                                \
+                __get_user_bad();                               \
+                break;                                          \
+        }                                                       \
+        (x) = __x;                                              \
+        __gu_err;                                               \
+})
+#else
+#define __get_user(x, ptr)                      \
+({                                              \
+        void __user *p;                         \
+        p = (ptr);                              \
+        0;                                      \
+})
+#endif
+
+
+#define get_user(x, ptr)                                        \
+({                                                              \
+        might_sleep();                                          \
+        __get_user(x, ptr);                                     \
+})
+
+extern int __get_user_bad(void) __attribute__((noreturn));
+
+#define __put_user_unaligned __put_user
+#define __get_user_unaligned __get_user
+
+extern long __copy_to_user_asm(const void *from, long n, void __user *to);
+
+/**
+ * __copy_to_user: - Copy a block of data into user space, with less checking.
+ * @to:   Destination address, in user space.
+ * @from: Source address, in kernel space.
+ * @n:    Number of bytes to copy.
+ *
+ * Context: User context only.  This function may sleep.
+ *
+ * Copy data from kernel space to user space.  Caller must check
+ * the specified block with access_ok() before calling this function.
+ *
+ * Returns number of bytes that could not be copied.
+ * On success, this will be zero.
+ */
+static inline unsigned long
+__copy_to_user(void __user *to, const void *from, unsigned long n)
+{
+        return __copy_to_user_asm(from, n, to);
+}
+
+#define __copy_to_user_inatomic __copy_to_user
+#define __copy_from_user_inatomic __copy_from_user
+
+/**
+ * copy_to_user: - Copy a block of data into user space.
+ * @to:   Destination address, in user space.
+ * @from: Source address, in kernel space.
+ * @n:    Number of bytes to copy.
+ *
+ * Context: User context only.  This function may sleep.
+ *
+ * Copy data from kernel space to user space.
+ *
+ * Returns number of bytes that could not be copied.
+ * On success, this will be zero.
+ */
+static inline unsigned long
+copy_to_user(void __user *to, const void *from, unsigned long n)
+{
+        might_sleep();
+        if (access_ok(VERIFY_WRITE, to, n))
+                n = __copy_to_user(to, from, n);
+        return n;
+}
+
+extern long __copy_from_user_asm(void *to, long n, const void __user *from);
+
+/**
+ * __copy_from_user: - Copy a block of data from user space, with less checking.
+ * @to:   Destination address, in kernel space.
+ * @from: Source address, in user space.
+ * @n:    Number of bytes to copy.
+ *
+ * Context: User context only.  This function may sleep.
+ *
+ * Copy data from user space to kernel space.  Caller must check
+ * the specified block with access_ok() before calling this function.
+ *
+ * Returns number of bytes that could not be copied.
+ * On success, this will be zero.
+ *
+ * If some data could not be copied, this function will pad the copied
+ * data to the requested size using zero bytes.
+ */
+static inline unsigned long
+__copy_from_user(void *to, const void __user *from, unsigned long n)
+{
+        return __copy_from_user_asm(to, n, from);
+}
+
+/**
+ * copy_from_user: - Copy a block of data from user space.
+ * @to:   Destination address, in kernel space.
+ * @from: Source address, in user space.
+ * @n:    Number of bytes to copy.
+ *
+ * Context: User context only.  This function may sleep.
+ *
+ * Copy data from user space to kernel space.
+ *
+ * Returns number of bytes that could not be copied.
+ * On success, this will be zero.
+ *
+ * If some data could not be copied, this function will pad the copied
+ * data to the requested size using zero bytes.
+ */
+static inline unsigned long
+copy_from_user(void *to, const void __user *from, unsigned long n)
+{
+        might_sleep();
+        if (access_ok(VERIFY_READ, from, n))
+                n = __copy_from_user(to, from, n);
+        else
+                memset(to, 0, n);
+        return n;
+}
+
+extern unsigned long __copy_in_user_asm(const void __user *from, long n,
+                                                        void __user *to);
+
+static inline unsigned long
+__copy_in_user(void __user *to, const void __user *from, unsigned long n)
+{
+        return __copy_in_user_asm(from, n, to);
+}
+
+static inline unsigned long
+copy_in_user(void __user *to, const void __user *from, unsigned long n)
+{
+        might_sleep();
+        if (__access_ok(from,n) && __access_ok(to,n))
+                n = __copy_in_user_asm(from, n, to);
+        return n;
+}
+
+/*
+ * Copy a null terminated string from userspace.
+ */
+extern long __strncpy_from_user_asm(long count, char *dst,
+                                        const char __user *src);
+
+static inline long
+strncpy_from_user(char *dst, const char __user *src, long count)
+{
+        long res = -EFAULT;
+        might_sleep();
+        if (access_ok(VERIFY_READ, src, 1))
+                res = __strncpy_from_user_asm(count, dst, src);
+        return res;
+}
+
+
+extern long __strnlen_user_asm(long count, const char __user *src);
+
+static inline unsigned long
+strnlen_user(const char __user * src, unsigned long n)
+{
+        might_sleep();
+        return __strnlen_user_asm(n, src);
+}
+
+/**
+ * strlen_user: - Get the size of a string in user space.
+ * @str: The string to measure.
+ *
+ * Context: User context only.  This function may sleep.
+ *
+ * Get the size of a NUL-terminated string in user space.
+ *
+ * Returns the size of the string INCLUDING the terminating NUL.
+ * On exception, returns 0.
+ *
+ * If there is a limit on the length of a valid string, you may wish to
+ * consider using strnlen_user() instead.
+ */
+#define strlen_user(str) strnlen_user(str, ~0UL)
+
+/*
+ * Zero Userspace
+ */
+
+extern long __clear_user_asm(void __user *to, long n);
+
+static inline unsigned long
+__clear_user(void __user *to, unsigned long n)
+{
+        return __clear_user_asm(to, n);
+}
+
+static inline unsigned long
+clear_user(void __user *to, unsigned long n)
+{
+        might_sleep();
+        if (access_ok(VERIFY_WRITE, to, n))
+                n = __clear_user_asm(to, n);
+        return n;
+}
+
+#endif /* __S390_UACCESS_H */
diff --git a/include/asm-s390/ucontext.h b/include/asm-s390/ucontext.h
new file mode 100644
index 000000000000..d69bec0b03f5
--- /dev/null
+++ b/include/asm-s390/ucontext.h
@@ -0,0 +1,20 @@
+/*
+ *  include/asm-s390/ucontext.h
+ *
+ *  S390 version
+ *
+ *  Derived from "include/asm-i386/ucontext.h"
+ */
+
+#ifndef _ASM_S390_UCONTEXT_H
+#define _ASM_S390_UCONTEXT_H
+
+struct ucontext {
+        unsigned long     uc_flags;
+        struct ucontext  *uc_link;
+        stack_t           uc_stack;
+        _sigregs          uc_mcontext;
+        sigset_t          uc_sigmask;   /* mask last for extensibility */
+};
+
+#endif /* !_ASM_S390_UCONTEXT_H */
diff --git a/include/asm-s390/unaligned.h b/include/asm-s390/unaligned.h
new file mode 100644
index 000000000000..8ee86dbedd1f
--- /dev/null
+++ b/include/asm-s390/unaligned.h
@@ -0,0 +1,24 @@
+/*
+ *  include/asm-s390/unaligned.h
+ *
+ *  S390 version
+ *
+ *  Derived from "include/asm-i386/unaligned.h"
+ */
+
+#ifndef __S390_UNALIGNED_H
+#define __S390_UNALIGNED_H
+
+/*
+ * The S390 can do unaligned accesses itself. 
+ *
+ * The strange macros are there to make sure these can't
+ * be misused in a way that makes them not work on other
+ * architectures where unaligned accesses aren't as simple.
+ */
+
+#define get_unaligned(ptr) (*(ptr))
+
+#define put_unaligned(val, ptr) ((void)( *(ptr) = (val) ))
+
+#endif
diff --git a/include/asm-s390/unistd.h b/include/asm-s390/unistd.h
new file mode 100644
index 000000000000..f1a204f7c0f0
--- /dev/null
+++ b/include/asm-s390/unistd.h
@@ -0,0 +1,605 @@
+/*
+ *  include/asm-s390/unistd.h
+ *
+ *  S390 version
+ *
+ *  Derived from "include/asm-i386/unistd.h"
+ */
+
+#ifndef _ASM_S390_UNISTD_H_
+#define _ASM_S390_UNISTD_H_
+
+/*
+ * This file contains the system call numbers.
+ */
+
+#define __NR_exit                 1
+#define __NR_fork                 2
+#define __NR_read                 3
+#define __NR_write                4
+#define __NR_open                 5
+#define __NR_close                6
+#define __NR_restart_syscall      7
+#define __NR_creat                8
+#define __NR_link                 9
+#define __NR_unlink              10
+#define __NR_execve              11
+#define __NR_chdir               12
+#define __NR_time                13
+#define __NR_mknod               14
+#define __NR_chmod               15
+#define __NR_lchown              16
+#define __NR_lseek               19
+#define __NR_getpid              20
+#define __NR_mount               21
+#define __NR_umount              22
+#define __NR_setuid              23
+#define __NR_getuid              24
+#define __NR_stime               25
+#define __NR_ptrace              26
+#define __NR_alarm               27
+#define __NR_pause               29
+#define __NR_utime               30
+#define __NR_access              33
+#define __NR_nice                34
+#define __NR_sync                36
+#define __NR_kill                37
+#define __NR_rename              38
+#define __NR_mkdir               39
+#define __NR_rmdir               40
+#define __NR_dup                 41
+#define __NR_pipe                42
+#define __NR_times               43
+#define __NR_brk                 45
+#define __NR_setgid              46
+#define __NR_getgid              47
+#define __NR_signal              48
+#define __NR_geteuid             49
+#define __NR_getegid             50
+#define __NR_acct                51
+#define __NR_umount2             52
+#define __NR_ioctl               54
+#define __NR_fcntl               55
+#define __NR_setpgid             57
+#define __NR_umask               60
+#define __NR_chroot              61
+#define __NR_ustat               62
+#define __NR_dup2                63
+#define __NR_getppid             64
+#define __NR_getpgrp             65
+#define __NR_setsid              66
+#define __NR_sigaction           67
+#define __NR_setreuid            70
+#define __NR_setregid            71
+#define __NR_sigsuspend          72
+#define __NR_sigpending          73
+#define __NR_sethostname         74
+#define __NR_setrlimit           75
+#define __NR_getrlimit           76
+#define __NR_getrusage           77
+#define __NR_gettimeofday        78
+#define __NR_settimeofday        79
+#define __NR_getgroups           80
+#define __NR_setgroups           81
+#define __NR_symlink             83
+#define __NR_readlink            85
+#define __NR_uselib              86
+#define __NR_swapon              87
+#define __NR_reboot              88
+#define __NR_readdir             89
+#define __NR_mmap                90
+#define __NR_munmap              91
+#define __NR_truncate            92
+#define __NR_ftruncate           93
+#define __NR_fchmod              94
+#define __NR_fchown              95
+#define __NR_getpriority         96
+#define __NR_setpriority         97
+#define __NR_statfs              99
+#define __NR_fstatfs            100
+#define __NR_ioperm             101
+#define __NR_socketcall         102
+#define __NR_syslog             103
+#define __NR_setitimer          104
+#define __NR_getitimer          105
+#define __NR_stat               106
+#define __NR_lstat              107
+#define __NR_fstat              108
+#define __NR_lookup_dcookie     110
+#define __NR_vhangup            111
+#define __NR_idle               112
+#define __NR_wait4              114
+#define __NR_swapoff            115
+#define __NR_sysinfo            116
+#define __NR_ipc                117
+#define __NR_fsync              118
+#define __NR_sigreturn          119
+#define __NR_clone              120
+#define __NR_setdomainname      121
+#define __NR_uname              122
+#define __NR_adjtimex           124
+#define __NR_mprotect           125
+#define __NR_sigprocmask        126
+#define __NR_create_module      127
+#define __NR_init_module        128
+#define __NR_delete_module      129
+#define __NR_get_kernel_syms    130
+#define __NR_quotactl           131
+#define __NR_getpgid            132
+#define __NR_fchdir             133
+#define __NR_bdflush            134
+#define __NR_sysfs              135
+#define __NR_personality        136
+#define __NR_afs_syscall        137 /* Syscall for Andrew File System */
+#define __NR_setfsuid           138
+#define __NR_setfsgid           139
+#define __NR__llseek            140
+#define __NR_getdents           141
+#define __NR__newselect         142
+#define __NR_flock              143
+#define __NR_msync              144
+#define __NR_readv              145
+#define __NR_writev             146
+#define __NR_getsid             147
+#define __NR_fdatasync          148
+#define __NR__sysctl            149
+#define __NR_mlock              150
+#define __NR_munlock            151
+#define __NR_mlockall           152
+#define __NR_munlockall         153
+#define __NR_sched_setparam             154
+#define __NR_sched_getparam             155
+#define __NR_sched_setscheduler         156
+#define __NR_sched_getscheduler         157
+#define __NR_sched_yield                158
+#define __NR_sched_get_priority_max     159
+#define __NR_sched_get_priority_min     160
+#define __NR_sched_rr_get_interval      161
+#define __NR_nanosleep          162
+#define __NR_mremap             163
+#define __NR_setresuid          164
+#define __NR_getresuid          165
+#define __NR_query_module       167
+#define __NR_poll               168
+#define __NR_nfsservctl         169
+#define __NR_setresgid          170
+#define __NR_getresgid          171
+#define __NR_prctl              172
+#define __NR_rt_sigreturn       173
+#define __NR_rt_sigaction       174
+#define __NR_rt_sigprocmask     175
+#define __NR_rt_sigpending      176
+#define __NR_rt_sigtimedwait    177
+#define __NR_rt_sigqueueinfo    178
+#define __NR_rt_sigsuspend      179
+#define __NR_pread64            180
+#define __NR_pwrite64           181
+#define __NR_chown              182
+#define __NR_getcwd             183
+#define __NR_capget             184
+#define __NR_capset             185
+#define __NR_sigaltstack        186
+#define __NR_sendfile           187
+#define __NR_getpmsg            188
+#define __NR_putpmsg            189
+#define __NR_vfork              190
+#define __NR_ugetrlimit         191     /* SuS compliant getrlimit */
+#define __NR_mmap2              192
+#define __NR_truncate64         193
+#define __NR_ftruncate64        194
+#define __NR_stat64             195
+#define __NR_lstat64            196
+#define __NR_fstat64            197
+#define __NR_lchown32           198
+#define __NR_getuid32           199
+#define __NR_getgid32           200
+#define __NR_geteuid32          201
+#define __NR_getegid32          202
+#define __NR_setreuid32         203
+#define __NR_setregid32         204
+#define __NR_getgroups32        205
+#define __NR_setgroups32        206
+#define __NR_fchown32           207
+#define __NR_setresuid32        208
+#define __NR_getresuid32        209
+#define __NR_setresgid32        210
+#define __NR_getresgid32        211
+#define __NR_chown32            212
+#define __NR_setuid32           213
+#define __NR_setgid32           214
+#define __NR_setfsuid32         215
+#define __NR_setfsgid32         216
+#define __NR_pivot_root         217
+#define __NR_mincore            218
+#define __NR_madvise            219
+#define __NR_getdents64         220
+#define __NR_fcntl64            221
+#define __NR_readahead          222
+#define __NR_sendfile64         223
+#define __NR_setxattr           224
+#define __NR_lsetxattr          225
+#define __NR_fsetxattr          226
+#define __NR_getxattr           227
+#define __NR_lgetxattr          228
+#define __NR_fgetxattr          229
+#define __NR_listxattr          230
+#define __NR_llistxattr         231
+#define __NR_flistxattr         232
+#define __NR_removexattr        233
+#define __NR_lremovexattr       234
+#define __NR_fremovexattr       235
+#define __NR_gettid             236
+#define __NR_tkill              237
+#define __NR_futex              238
+#define __NR_sched_setaffinity  239
+#define __NR_sched_getaffinity  240
+#define __NR_tgkill             241
+/* Number 242 is reserved for tux */
+#define __NR_io_setup           243
+#define __NR_io_destroy         244
+#define __NR_io_getevents       245
+#define __NR_io_submit          246
+#define __NR_io_cancel          247
+#define __NR_exit_group         248
+#define __NR_epoll_create       249
+#define __NR_epoll_ctl          250
+#define __NR_epoll_wait         251
+#define __NR_set_tid_address    252
+#define __NR_fadvise64          253
+#define __NR_timer_create       254
+#define __NR_timer_settime      (__NR_timer_create+1)
+#define __NR_timer_gettime      (__NR_timer_create+2)
+#define __NR_timer_getoverrun   (__NR_timer_create+3)
+#define __NR_timer_delete       (__NR_timer_create+4)
+#define __NR_clock_settime      (__NR_timer_create+5)
+#define __NR_clock_gettime      (__NR_timer_create+6)
+#define __NR_clock_getres       (__NR_timer_create+7)
+#define __NR_clock_nanosleep    (__NR_timer_create+8)
+/* Number 263 is reserved for vserver */
+#define __NR_fadvise64_64       264
+#define __NR_statfs64           265
+#define __NR_fstatfs64          266
+#define __NR_remap_file_pages   267
+/* Number 268 is reserved for new sys_mbind */
+/* Number 269 is reserved for new sys_get_mempolicy */
+/* Number 270 is reserved for new sys_set_mempolicy */
+#define __NR_mq_open            271
+#define __NR_mq_unlink          272
+#define __NR_mq_timedsend       273
+#define __NR_mq_timedreceive    274
+#define __NR_mq_notify          275
+#define __NR_mq_getsetattr      276
+/* Number 277 is reserved for new sys_kexec_load */
+#define __NR_add_key            278
+#define __NR_request_key        279
+#define __NR_keyctl             280
+#define __NR_waitid             281
+
+#define NR_syscalls 282
+
+/* 
+ * There are some system calls that are not present on 64 bit, some
+ * have a different name although they do the same (e.g. __NR_chown32
+ * is __NR_chown on 64 bit).
+ */
+#ifdef __s390x__
+#undef  __NR_time
+#undef  __NR_lchown
+#undef  __NR_setuid
+#undef  __NR_getuid
+#undef  __NR_stime
+#undef  __NR_setgid
+#undef  __NR_getgid
+#undef  __NR_geteuid
+#undef  __NR_getegid
+#undef  __NR_setreuid
+#undef  __NR_setregid
+#undef  __NR_getrlimit
+#undef  __NR_getgroups
+#undef  __NR_setgroups
+#undef  __NR_fchown
+#undef  __NR_ioperm
+#undef  __NR_setfsuid
+#undef  __NR_setfsgid
+#undef  __NR__llseek
+#undef  __NR__newselect
+#undef  __NR_setresuid
+#undef  __NR_getresuid
+#undef  __NR_setresgid
+#undef  __NR_getresgid
+#undef  __NR_chown
+#undef  __NR_ugetrlimit
+#undef  __NR_mmap2
+#undef  __NR_truncate64
+#undef  __NR_ftruncate64
+#undef  __NR_stat64
+#undef  __NR_lstat64
+#undef  __NR_fstat64
+#undef  __NR_lchown32
+#undef  __NR_getuid32
+#undef  __NR_getgid32
+#undef  __NR_geteuid32
+#undef  __NR_getegid32
+#undef  __NR_setreuid32
+#undef  __NR_setregid32
+#undef  __NR_getgroups32
+#undef  __NR_setgroups32
+#undef  __NR_fchown32
+#undef  __NR_setresuid32
+#undef  __NR_getresuid32
+#undef  __NR_setresgid32
+#undef  __NR_getresgid32
+#undef  __NR_chown32
+#undef  __NR_setuid32
+#undef  __NR_setgid32
+#undef  __NR_setfsuid32
+#undef  __NR_setfsgid32
+#undef  __NR_fcntl64
+#undef  __NR_sendfile64
+#undef  __NR_fadvise64_64
+
+#define __NR_select             142
+#define __NR_getrlimit          191     /* SuS compliant getrlimit */
+#define __NR_lchown             198
+#define __NR_getuid             199
+#define __NR_getgid             200
+#define __NR_geteuid            201
+#define __NR_getegid            202
+#define __NR_setreuid           203
+#define __NR_setregid           204
+#define __NR_getgroups          205
+#define __NR_setgroups          206
+#define __NR_fchown             207
+#define __NR_setresuid          208
+#define __NR_getresuid          209
+#define __NR_setresgid          210
+#define __NR_getresgid          211
+#define __NR_chown              212
+#define __NR_setuid             213
+#define __NR_setgid             214
+#define __NR_setfsuid           215
+#define __NR_setfsgid           216
+
+#endif
+
+/* user-visible error numbers are in the range -1 - -122: see <asm-s390/errno.h> */
+
+#define __syscall_return(type, res)                          \
+do {                                                         \
+        if ((unsigned long)(res) >= (unsigned long)(-125)) { \
+                errno = -(res);                              \
+                res = -1;                                    \
+        }                                                    \
+        return (type) (res);                                 \
+} while (0)
+
+#define _svc_clobber "1", "cc", "memory"
+
+#define _syscall0(type,name)                                 \
+type name(void) {                                            \
+        register long __svcres asm("2");                     \
+        long __res;                                          \
+        __asm__ __volatile__ (                               \
+                "    .if %1 < 256\n"                         \
+                "    svc %b1\n"                              \
+                "    .else\n"                                \
+                "    la  %%r1,%1\n"                          \
+                "    svc 0\n"                                \
+                "    .endif"                                 \
+                : "=d" (__svcres)                            \
+                : "i" (__NR_##name)                          \
+                : _svc_clobber );                            \
+        __res = __svcres;                                    \
+        __syscall_return(type,__res);                        \
+}
+
+#define _syscall1(type,name,type1,arg1)                      \
+type name(type1 arg1) {                                      \
+        register type1 __arg1 asm("2") = arg1;               \
+        register long __svcres asm("2");                     \
+        long __res;                                          \
+        __asm__ __volatile__ (                               \
+                "    .if %1 < 256\n"                         \
+                "    svc %b1\n"                              \
+                "    .else\n"                                \
+                "    la  %%r1,%1\n"                          \
+                "    svc 0\n"                                \
+                "    .endif"                                 \
+                : "=d" (__svcres)                            \
+                : "i" (__NR_##name),                         \
+                  "0" (__arg1)                               \
+                : _svc_clobber );                            \
+        __res = __svcres;                                    \
+        __syscall_return(type,__res);                        \
+}
+
+#define _syscall2(type,name,type1,arg1,type2,arg2)           \
+type name(type1 arg1, type2 arg2) {                          \
+        register type1 __arg1 asm("2") = arg1;               \
+        register type2 __arg2 asm("3") = arg2;               \
+        register long __svcres asm("2");                     \
+        long __res;                                          \
+        __asm__ __volatile__ (                               \
+                "    .if %1 < 256\n"                         \
+                "    svc %b1\n"                              \
+                "    .else\n"                                \
+                "    la %%r1,%1\n"                           \
+                "    svc 0\n"                                \
+                "    .endif"                                 \
+                : "=d" (__svcres)                            \
+                : "i" (__NR_##name),                         \
+                  "0" (__arg1),                              \
+                  "d" (__arg2)                               \
+                : _svc_clobber );                            \
+        __res = __svcres;                                    \
+        __syscall_return(type,__res);                        \
+}
+
+#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3)\
+type name(type1 arg1, type2 arg2, type3 arg3) {              \
+        register type1 __arg1 asm("2") = arg1;               \
+        register type2 __arg2 asm("3") = arg2;               \
+        register type3 __arg3 asm("4") = arg3;               \
+        register long __svcres asm("2");                     \
+        long __res;                                          \
+        __asm__ __volatile__ (                               \
+                "    .if %1 < 256\n"                         \
+                "    svc %b1\n"                              \
+                "    .else\n"                                \
+                "    la  %%r1,%1\n"                          \
+                "    svc 0\n"                                \
+                "    .endif"                                 \
+                : "=d" (__svcres)                            \
+                : "i" (__NR_##name),                         \
+                  "0" (__arg1),                              \
+                  "d" (__arg2),                              \
+                  "d" (__arg3)                               \
+                : _svc_clobber );                            \
+        __res = __svcres;                                    \
+        __syscall_return(type,__res);                        \
+}
+
+#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,\
+                  type4,name4)                               \
+type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4) {  \
+        register type1 __arg1 asm("2") = arg1;               \
+        register type2 __arg2 asm("3") = arg2;               \
+        register type3 __arg3 asm("4") = arg3;               \
+        register type4 __arg4 asm("5") = arg4;               \
+        register long __svcres asm("2");                     \
+        long __res;                                          \
+        __asm__ __volatile__ (                               \
+                "    .if %1 < 256\n"                         \
+                "    svc %b1\n"                              \
+                "    .else\n"                                \
+                "    la  %%r1,%1\n"                          \
+                "    svc 0\n"                                \
+                "    .endif"                                 \
+                : "=d" (__svcres)                            \
+                : "i" (__NR_##name),                         \
+                  "0" (__arg1),                              \
+                  "d" (__arg2),                              \
+                  "d" (__arg3),                              \
+                  "d" (__arg4)                               \
+                : _svc_clobber );                            \
+        __res = __svcres;                                    \
+        __syscall_return(type,__res);                        \
+}
+
+#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,\
+                  type4,name4,type5,name5)                   \
+type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4,    \
+          type5 arg5) {                                      \
+        register type1 __arg1 asm("2") = arg1;               \
+        register type2 __arg2 asm("3") = arg2;               \
+        register type3 __arg3 asm("4") = arg3;               \
+        register type4 __arg4 asm("5") = arg4;               \
+        register type5 __arg5 asm("6") = arg5;               \
+        register long __svcres asm("2");                     \
+        long __res;                                          \
+        __asm__ __volatile__ (                               \
+                "    .if %1 < 256\n"                         \
+                "    svc %b1\n"                              \
+                "    .else\n"                                \
+                "    la  %%r1,%1\n"                          \
+                "    svc 0\n"                                \
+                "    .endif"                                 \
+                : "=d" (__svcres)                            \
+                : "i" (__NR_##name),                         \
+                  "0" (__arg1),                              \
+                  "d" (__arg2),                              \
+                  "d" (__arg3),                              \
+                  "d" (__arg4),                              \
+                  "d" (__arg5)                               \
+                : _svc_clobber );                            \
+        __res = __svcres;                                    \
+        __syscall_return(type,__res);                        \
+}
+
+#ifdef __KERNEL__
+#define __ARCH_WANT_IPC_PARSE_VERSION
+#define __ARCH_WANT_OLD_READDIR
+#define __ARCH_WANT_SYS_ALARM
+#define __ARCH_WANT_SYS_GETHOSTNAME
+#define __ARCH_WANT_SYS_PAUSE
+#define __ARCH_WANT_SYS_SIGNAL
+#define __ARCH_WANT_SYS_UTIME
+#define __ARCH_WANT_SYS_SOCKETCALL
+#define __ARCH_WANT_SYS_FADVISE64
+#define __ARCH_WANT_SYS_GETPGRP
+#define __ARCH_WANT_SYS_LLSEEK
+#define __ARCH_WANT_SYS_NICE
+#define __ARCH_WANT_SYS_OLD_GETRLIMIT
+#define __ARCH_WANT_SYS_OLDUMOUNT
+#define __ARCH_WANT_SYS_SIGPENDING
+#define __ARCH_WANT_SYS_SIGPROCMASK
+#define __ARCH_WANT_SYS_RT_SIGACTION
+# ifdef CONFIG_ARCH_S390_31
+#   define __ARCH_WANT_STAT64
+#   define __ARCH_WANT_SYS_TIME
+# endif
+# define __ARCH_WANT_COMPAT_SYS_TIME
+#endif
+
+#ifdef __KERNEL_SYSCALLS__
+
+#include <linux/config.h>
+#include <linux/compiler.h>
+#include <linux/types.h>
+#include <asm/ptrace.h>
+#include <asm/stat.h>
+#include <linux/syscalls.h>
+
+/*
+ * we need this inline - forking from kernel space will result
+ * in NO COPY ON WRITE (!!!), until an execve is executed. This
+ * is no problem, but for the stack. This is handled by not letting
+ * main() use the stack at all after fork(). Thus, no function
+ * calls - which means inline code for fork too, as otherwise we
+ * would use the stack upon exit from 'fork()'.
+ *
+ * Actually only pause and fork are needed inline, so that there
+ * won't be any messing with the stack from main(), but we define
+ * some others too.
+ */
+#define __NR__exit __NR_exit
+static inline _syscall0(pid_t,setsid)
+static inline _syscall3(int,write,int,fd,const char *,buf,off_t,count)
+static inline _syscall3(int,read,int,fd,char *,buf,off_t,count)
+static inline _syscall3(off_t,lseek,int,fd,off_t,offset,int,count)
+static inline _syscall1(int,dup,int,fd)
+static inline _syscall3(int,execve,const char *,file,char **,argv,char **,envp)
+static inline _syscall3(int,open,const char *,file,int,flag,int,mode)
+static inline _syscall1(int,close,int,fd)
+static inline _syscall2(long,stat,char *,filename,struct stat *,statbuf)
+
+static inline pid_t waitpid(int pid, int *wait_stat, int flags)
+{
+        return sys_wait4(pid, wait_stat, flags, NULL);
+}
+struct mmap_arg_struct;
+asmlinkage long sys_mmap2(struct mmap_arg_struct __user *arg);
+
+asmlinkage long sys_execve(struct pt_regs regs);
+asmlinkage long sys_clone(struct pt_regs regs);
+asmlinkage long sys_fork(struct pt_regs regs);
+asmlinkage long sys_vfork(struct pt_regs regs);
+asmlinkage long sys_pipe(unsigned long __user *fildes);
+asmlinkage long sys_ptrace(long request, long pid, long addr, long data);
+struct sigaction;
+asmlinkage long sys_rt_sigaction(int sig,
+                                const struct sigaction __user *act,
+                                struct sigaction __user *oact,
+                                size_t sigsetsize);
+
+#endif
+
+/*
+ * "Conditional" syscalls
+ *
+ * What we want is __attribute__((weak,alias("sys_ni_syscall"))),
+ * but it doesn't work on all toolchains, so we just do it by hand
+ */
+#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall")
+
+#endif /* _ASM_S390_UNISTD_H_ */
diff --git a/include/asm-s390/user.h b/include/asm-s390/user.h
new file mode 100644
index 000000000000..c64f8c181df3
--- /dev/null
+++ b/include/asm-s390/user.h
@@ -0,0 +1,77 @@
+/*
+ *  include/asm-s390/user.h
+ *
+ *  S390 version
+ *
+ *  Derived from "include/asm-i386/usr.h"
+ */
+
+#ifndef _S390_USER_H
+#define _S390_USER_H
+
+#include <asm/page.h>
+#include <linux/ptrace.h>
+/* Core file format: The core file is written in such a way that gdb
+   can understand it and provide useful information to the user (under
+   linux we use the 'trad-core' bfd).  There are quite a number of
+   obstacles to being able to view the contents of the floating point
+   registers, and until these are solved you will not be able to view the
+   contents of them.  Actually, you can read in the core file and look at
+   the contents of the user struct to find out what the floating point
+   registers contain.
+   The actual file contents are as follows:
+   UPAGE: 1 page consisting of a user struct that tells gdb what is present
+   in the file.  Directly after this is a copy of the task_struct, which
+   is currently not used by gdb, but it may come in useful at some point.
+   All of the registers are stored as part of the upage.  The upage should
+   always be only one page.
+   DATA: The data area is stored.  We use current->end_text to
+   current->brk to pick up all of the user variables, plus any memory
+   that may have been malloced.  No attempt is made to determine if a page
+   is demand-zero or if a page is totally unused, we just cover the entire
+   range.  All of the addresses are rounded in such a way that an integral
+   number of pages is written.
+   STACK: We need the stack information in order to get a meaningful
+   backtrace.  We need to write the data from (esp) to
+   current->start_stack, so we round each of these off in order to be able
+   to write an integer number of pages.
+   The minimum core file size is 3 pages, or 12288 bytes.
+*/
+
+
+/*
+ * This is the old layout of "struct pt_regs", and
+ * is still the layout used by user mode (the new
+ * pt_regs doesn't have all registers as the kernel
+ * doesn't use the extra segment registers)
+ */
+
+/* When the kernel dumps core, it starts by dumping the user struct -
+   this will be used by gdb to figure out where the data and stack segments
+   are within the file, and what virtual addresses to use. */
+struct user {
+/* We start with the registers, to mimic the way that "memory" is returned
+   from the ptrace(3,...) function.  */
+  struct user_regs_struct regs;         /* Where the registers are actually stored */
+/* The rest of this junk is to help gdb figure out what goes where */
+  unsigned long int u_tsize;    /* Text segment size (pages). */
+  unsigned long int u_dsize;    /* Data segment size (pages). */
+  unsigned long int u_ssize;    /* Stack segment size (pages). */
+  unsigned long start_code;     /* Starting virtual address of text. */
+  unsigned long start_stack;    /* Starting virtual address of stack area.
+                                   This is actually the bottom of the stack,
+                                   the top of the stack is always found in the
+                                   esp register.  */
+  long int signal;              /* Signal that caused the core dump. */
+  struct user_regs_struct *u_ar0;
+                                /* Used by gdb to help find the values for */
+                                /* the registers. */
+  unsigned long magic;          /* To uniquely identify a core file */
+  char u_comm[32];              /* User command that was responsible */
+};
+#define NBPG PAGE_SIZE
+#define UPAGES 1
+#define HOST_TEXT_START_ADDR (u.start_code)
+#define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG)
+
+#endif /* _S390_USER_H */
diff --git a/include/asm-s390/vtoc.h b/include/asm-s390/vtoc.h
new file mode 100644
index 000000000000..a14e34e80b88
--- /dev/null
+++ b/include/asm-s390/vtoc.h
@@ -0,0 +1,372 @@
+#ifndef __KERNEL__
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <errno.h>
+#include <ctype.h>
+#include <time.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+#include <sys/stat.h>
+#include <sys/ioctl.h>
+
+#include <linux/fs.h>
+#include <linux/types.h>
+#include <linux/hdreg.h>
+#include <asm/dasd.h>
+#endif
+
+
+#define LINE_LENGTH 80
+#define VTOC_START_CC 0x0
+#define VTOC_START_HH 0x1
+#define FIRST_USABLE_CYL 1
+#define FIRST_USABLE_TRK 2
+
+#define DASD_3380_TYPE 13148
+#define DASD_3390_TYPE 13200
+#define DASD_9345_TYPE 37701
+
+#define DASD_3380_VALUE 0xbb60
+#define DASD_3390_VALUE 0xe5a2
+#define DASD_9345_VALUE 0xbc98
+
+#define VOLSER_LENGTH 6
+#define BIG_DISK_SIZE 0x10000
+
+#define VTOC_ERROR "VTOC error:"
+
+
+typedef struct ttr 
+{
+        __u16 tt;
+        __u8  r;
+} __attribute__ ((packed)) ttr_t;
+
+typedef struct cchhb 
+{
+        __u16 cc;
+        __u16 hh;
+        __u8 b;
+} __attribute__ ((packed)) cchhb_t;
+
+typedef struct cchh 
+{
+        __u16 cc;
+        __u16 hh;
+} __attribute__ ((packed)) cchh_t;
+
+typedef struct labeldate 
+{
+        __u8  year;
+        __u16 day;
+} __attribute__ ((packed)) labeldate_t;
+
+
+typedef struct volume_label 
+{
+        char volkey[4];         /* volume key = volume label                 */
+        char vollbl[4];         /* volume label                              */
+        char volid[6];          /* volume identifier                         */
+        __u8 security;          /* security byte                             */
+        cchhb_t vtoc;           /* VTOC address                              */
+        char res1[5];           /* reserved                                  */
+        char cisize[4];         /* CI-size for FBA,...                       */
+                                /* ...blanks for CKD                         */
+        char blkperci[4];       /* no of blocks per CI (FBA), blanks for CKD */
+        char labperci[4];       /* no of labels per CI (FBA), blanks for CKD */
+        char res2[4];           /* reserved                                  */
+        char lvtoc[14];         /* owner code for LVTOC                      */
+        char res3[29];          /* reserved                                  */
+} __attribute__ ((packed)) volume_label_t;
+
+
+typedef struct extent 
+{
+        __u8  typeind;          /* extent type indicator                     */
+        __u8  seqno;            /* extent sequence number                    */
+        cchh_t llimit;          /* starting point of this extent             */
+        cchh_t ulimit;          /* ending point of this extent               */
+} __attribute__ ((packed)) extent_t;
+
+
+typedef struct dev_const 
+{
+        __u16 DS4DSCYL;           /* number of logical cyls                  */
+        __u16 DS4DSTRK;           /* number of tracks in a logical cylinder  */
+        __u16 DS4DEVTK;           /* device track length                     */
+        __u8  DS4DEVI;            /* non-last keyed record overhead          */
+        __u8  DS4DEVL;            /* last keyed record overhead              */
+        __u8  DS4DEVK;            /* non-keyed record overhead differential  */
+        __u8  DS4DEVFG;           /* flag byte                               */
+        __u16 DS4DEVTL;           /* device tolerance                        */
+        __u8  DS4DEVDT;           /* number of DSCB's per track              */
+        __u8  DS4DEVDB;           /* number of directory blocks per track    */
+} __attribute__ ((packed)) dev_const_t;
+
+
+typedef struct format1_label 
+{
+        char  DS1DSNAM[44];       /* data set name                           */
+        __u8  DS1FMTID;           /* format identifier                       */
+        char  DS1DSSN[6];         /* data set serial number                  */
+        __u16 DS1VOLSQ;           /* volume sequence number                  */
+        labeldate_t DS1CREDT;     /* creation date: ydd                      */
+        labeldate_t DS1EXPDT;     /* expiration date                         */
+        __u8  DS1NOEPV;           /* number of extents on volume             */
+        __u8  DS1NOBDB;           /* no. of bytes used in last direction blk */
+        __u8  DS1FLAG1;           /* flag 1                                  */
+        char  DS1SYSCD[13];       /* system code                             */
+        labeldate_t DS1REFD;      /* date last referenced                    */
+        __u8  DS1SMSFG;           /* system managed storage indicators       */
+        __u8  DS1SCXTF;           /* sec. space extension flag byte          */
+        __u16 DS1SCXTV;           /* secondary space extension value         */
+        __u8  DS1DSRG1;           /* data set organisation byte 1            */
+        __u8  DS1DSRG2;           /* data set organisation byte 2            */
+        __u8  DS1RECFM;           /* record format                           */
+        __u8  DS1OPTCD;           /* option code                             */
+        __u16 DS1BLKL;            /* block length                            */
+        __u16 DS1LRECL;           /* record length                           */
+        __u8  DS1KEYL;            /* key length                              */
+        __u16 DS1RKP;             /* relative key position                   */
+        __u8  DS1DSIND;           /* data set indicators                     */
+        __u8  DS1SCAL1;           /* secondary allocation flag byte          */
+        char DS1SCAL3[3];         /* secondary allocation quantity           */
+        ttr_t DS1LSTAR;           /* last used track and block on track      */
+        __u16 DS1TRBAL;           /* space remaining on last used track      */
+        __u16 res1;               /* reserved                                */
+        extent_t DS1EXT1;         /* first extent description                */
+        extent_t DS1EXT2;         /* second extent description               */
+        extent_t DS1EXT3;         /* third extent description                */
+        cchhb_t DS1PTRDS;         /* possible pointer to f2 or f3 DSCB       */
+} __attribute__ ((packed)) format1_label_t;
+
+
+typedef struct format4_label 
+{
+        char  DS4KEYCD[44];       /* key code for VTOC labels: 44 times 0x04 */
+        __u8  DS4IDFMT;           /* format identifier                       */
+        cchhb_t DS4HPCHR;         /* highest address of a format 1 DSCB      */
+        __u16 DS4DSREC;           /* number of available DSCB's              */
+        cchh_t DS4HCCHH;          /* CCHH of next available alternate track  */
+        __u16 DS4NOATK;           /* number of remaining alternate tracks    */
+        __u8  DS4VTOCI;           /* VTOC indicators                         */
+        __u8  DS4NOEXT;           /* number of extents in VTOC               */
+        __u8  DS4SMSFG;           /* system managed storage indicators       */
+        __u8  DS4DEVAC;           /* number of alternate cylinders. 
+                                     Subtract from first two bytes of 
+                                     DS4DEVSZ to get number of usable
+                                     cylinders. can be zero. valid
+                                     only if DS4DEVAV on.                    */
+        dev_const_t DS4DEVCT;     /* device constants                        */
+        char DS4AMTIM[8];         /* VSAM time stamp                         */
+        char DS4AMCAT[3];         /* VSAM catalog indicator                  */
+        char DS4R2TIM[8];         /* VSAM volume/catalog match time stamp    */
+        char res1[5];             /* reserved                                */
+        char DS4F6PTR[5];         /* pointer to first format 6 DSCB          */
+        extent_t DS4VTOCE;        /* VTOC extent description                 */
+        char res2[10];            /* reserved                                */
+        __u8 DS4EFLVL;            /* extended free-space management level    */
+        cchhb_t DS4EFPTR;         /* pointer to extended free-space info     */
+        char res3[9];             /* reserved                                */
+} __attribute__ ((packed)) format4_label_t;
+
+
+typedef struct ds5ext 
+{
+        __u16 t;                  /* RTA of the first track of free extent   */
+        __u16 fc;                 /* number of whole cylinders in free ext.  */
+        __u8  ft;                 /* number of remaining free tracks         */
+} __attribute__ ((packed)) ds5ext_t;
+
+
+typedef struct format5_label 
+{
+        char DS5KEYID[4];         /* key identifier                          */
+        ds5ext_t DS5AVEXT;        /* first available (free-space) extent.    */
+        ds5ext_t DS5EXTAV[7];     /* seven available extents                 */
+        __u8 DS5FMTID;            /* format identifier                       */
+        ds5ext_t DS5MAVET[18];    /* eighteen available extents              */
+        cchhb_t DS5PTRDS;         /* pointer to next format5 DSCB            */
+} __attribute__ ((packed)) format5_label_t;
+
+
+typedef struct ds7ext 
+{
+        __u32 a;                  /* starting RTA value                      */
+        __u32 b;                  /* ending RTA value + 1                    */
+} __attribute__ ((packed)) ds7ext_t;
+
+
+typedef struct format7_label 
+{
+        char DS7KEYID[4];         /* key identifier                          */
+        ds7ext_t DS7EXTNT[5];     /* space for 5 extent descriptions         */
+        __u8 DS7FMTID;            /* format identifier                       */
+        ds7ext_t DS7ADEXT[11];    /* space for 11 extent descriptions        */
+        char res1[2];             /* reserved                                */
+        cchhb_t DS7PTRDS;         /* pointer to next FMT7 DSCB               */
+} __attribute__ ((packed)) format7_label_t;
+
+
+char * vtoc_ebcdic_enc (
+        unsigned char source[LINE_LENGTH],
+        unsigned char target[LINE_LENGTH],
+        int l);
+char * vtoc_ebcdic_dec (
+        unsigned char source[LINE_LENGTH],
+        unsigned char target[LINE_LENGTH],
+        int l);
+void vtoc_set_extent (
+        extent_t * ext,
+        __u8 typeind,
+        __u8 seqno,
+        cchh_t * lower,
+        cchh_t * upper);
+void vtoc_set_cchh (
+        cchh_t * addr,
+        __u16 cc,
+        __u16 hh);
+void vtoc_set_cchhb (
+        cchhb_t * addr,
+        __u16 cc,
+        __u16 hh,
+        __u8 b);
+void vtoc_set_date (
+        labeldate_t * d,
+        __u8 year,
+        __u16 day);
+
+void vtoc_volume_label_init (
+        volume_label_t *vlabel);
+
+int vtoc_read_volume_label (
+        char * device,
+        unsigned long vlabel_start,
+        volume_label_t * vlabel);
+
+int vtoc_write_volume_label (
+        char *device,
+        unsigned long vlabel_start,
+        volume_label_t *vlabel);
+
+void vtoc_volume_label_set_volser (
+        volume_label_t *vlabel,
+        char *volser);
+
+char *vtoc_volume_label_get_volser (
+        volume_label_t *vlabel,
+        char *volser);
+
+void vtoc_volume_label_set_key (
+        volume_label_t *vlabel,
+        char *key);     
+
+void vtoc_volume_label_set_label (
+        volume_label_t *vlabel,
+        char *lbl);
+
+char *vtoc_volume_label_get_label (
+        volume_label_t *vlabel,
+        char *lbl);
+
+void vtoc_read_label (
+        char *device,
+        unsigned long position,
+        format1_label_t *f1,
+        format4_label_t *f4,
+        format5_label_t *f5,
+        format7_label_t *f7);
+
+void vtoc_write_label (
+        char *device,
+        unsigned long position,
+        format1_label_t *f1,
+        format4_label_t *f4,
+        format5_label_t *f5,
+        format7_label_t *f7);
+
+
+void vtoc_init_format1_label (
+        char *volid,
+        unsigned int blksize,
+        extent_t *part_extent,
+        format1_label_t *f1);
+
+
+void vtoc_init_format4_label (
+        format4_label_t *f4lbl,
+        unsigned int usable_partitions,
+        unsigned int cylinders,
+        unsigned int tracks,
+        unsigned int blocks,
+        unsigned int blksize,
+        __u16 dev_type);
+
+void vtoc_update_format4_label (
+        format4_label_t *f4,
+        cchhb_t *highest_f1,
+        __u16 unused_update);
+
+
+void vtoc_init_format5_label (
+        format5_label_t *f5);
+
+void vtoc_update_format5_label_add (
+        format5_label_t *f5,
+        int verbose,
+        int cyl,
+        int trk,
+        __u16 a, 
+        __u16 b, 
+        __u8 c);
+ 
+void vtoc_update_format5_label_del (
+        format5_label_t *f5,
+        int verbose,
+        int cyl,
+        int trk,
+        __u16 a, 
+        __u16 b, 
+        __u8 c);
+
+
+void vtoc_init_format7_label (
+        format7_label_t *f7);
+
+void vtoc_update_format7_label_add (
+        format7_label_t *f7,
+        int verbose,
+        __u32 a, 
+        __u32 b);
+
+void vtoc_update_format7_label_del (
+        format7_label_t *f7, 
+        int verbose,
+        __u32 a, 
+        __u32 b);
+
+
+void vtoc_set_freespace(
+        format4_label_t *f4,
+        format5_label_t *f5,
+        format7_label_t *f7,
+        char ch,
+        int verbose,
+        __u32 start,
+        __u32 stop,
+        int cyl,
+        int trk);
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/include/asm-s390/xor.h b/include/asm-s390/xor.h
new file mode 100644
index 000000000000..c82eb12a5b18
--- /dev/null
+++ b/include/asm-s390/xor.h
@@ -0,0 +1 @@
+#include <asm-generic/xor.h>