Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/include/asm-s390/a.out.h b/include/asm-s390/a.out.h
new file mode 100644
index 0000000..72adee6
--- /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 0000000..d5a05cf
--- /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 0000000..16bb084
--- /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 0000000..2b8d6d4
--- /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 0000000..2c36596
--- /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 0000000..2cc35a0
--- /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 0000000..2984537
--- /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 0000000..e399a8b
--- /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 0000000..3eb231a
--- /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 0000000..d2f9c0d
--- /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 0000000..471f2af
--- /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 0000000..089cf56
--- /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 0000000..1bfe2bd
--- /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 0000000..7f8f544
--- /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 0000000..1d33c5da
--- /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 0000000..4b3ef7c
--- /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 0000000..83cf36c
--- /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 0000000..77b10d6
--- /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 0000000..28ef235
--- /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 0000000..7835731
--- /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 0000000..af098dc
--- /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 0000000..09bb7b0
--- /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 0000000..02720c4
--- /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 0000000..20e81e8
--- /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 0000000..3b8bd46
--- /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(®s->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(®s->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 0000000..e41d5b3
--- /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 0000000..c8802c9
--- /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 0000000..48f692b
--- /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 0000000..6792c55
--- /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 0000000..8038858
--- /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 0000000..8188fdc
--- /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 0000000..df73943
--- /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 0000000..07e19b2
--- /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 0000000..a46e3d9
--- /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 0000000..37f293d
--- /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 0000000..916a1aa
--- /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 0000000..fd15746
--- /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 0000000..291c2d0
--- /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 0000000..cf81890
--- /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 0000000..df5172f
--- /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 0000000..e8dd1ba
--- /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 0000000..ea86bd1
--- /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 0000000..ccd36d2
--- /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 0000000..3a3bb3f
--- /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 0000000..1cc1c5a
--- /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 0000000..1bbdee9
--- /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 0000000..3e286bd
--- /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 0000000..614e2a9
--- /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 0000000..085a7e2
--- /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 0000000..42a145c
--- /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 0000000..123fcac
--- /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 0000000..3417dd7
--- /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 0000000..1633cb7
--- /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 0000000..e90a5ca
--- /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 0000000..61788de
--- /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 0000000..cbbd114
--- /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 0000000..1dc8066
--- /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 0000000..0ddf0a8
--- /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 0000000..930d378
--- /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 0000000..366c01d
--- /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 0000000..8c0cebb
--- /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 0000000..e9a2862
--- /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 0000000..a43b3af
--- /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 0000000..3a0b8ff
--- /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 0000000..8bfce34
--- /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 0000000..873def6
--- /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 0000000..32626b0
--- /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 0000000..0d51c48
--- /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 0000000..3c79b53
--- /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 0000000..eed2e28
--- /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 0000000..c2e0c05
--- /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 0000000..d57bc0c
--- /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 0000000..7230353
--- /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 0000000..f273cdc
--- /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 0000000..3979bc3
--- /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 0000000..9473786
--- /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 0000000..0e96eec
--- /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 0000000..412aeb4d
--- /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 0000000..53cc736
--- /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 0000000..d92959e
--- /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 0000000..099a455
--- /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 0000000..23a4c39
--- /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 0000000..1f34580
--- /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 0000000..81514d7
--- /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 0000000..f1d66ba
--- /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 0000000..eb3f8bf
--- /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 0000000..d1e29cc
--- /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 0000000..aade85c
--- /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 0000000..ea07889
--- /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 0000000..4848057
--- /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 0000000..51bd957
--- /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 0000000..1bb73b0
--- /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 0000000..c7f6205
--- /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 0000000..613aa64
--- /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 0000000..3fefd61
--- /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 0000000..a7f43a2
--- /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 0000000..d69bec0
--- /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 0000000..8ee86db
--- /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 0000000..f1a204f
--- /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 0000000..c64f8c1
--- /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 0000000..a14e34e
--- /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 0000000..c82eb12
--- /dev/null
+++ b/include/asm-s390/xor.h
@@ -0,0 +1 @@
+#include <asm-generic/xor.h>