75 files changed, 1715 insertions, 1071 deletions

diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index c80235206c01..0d8cd9bbe101 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -54,6 +54,9 @@ config GENERIC_BUG
         depends on BUG
         default y
 
+config GENERIC_BUG_RELATIVE_POINTERS
+        def_bool y
+
 config NO_IOMEM
         def_bool y
 
@@ -87,6 +90,7 @@ config S390
         select HAVE_SYSCALL_TRACEPOINTS
         select HAVE_DYNAMIC_FTRACE
         select HAVE_FUNCTION_GRAPH_TRACER
+        select HAVE_REGS_AND_STACK_ACCESS_API
         select HAVE_DEFAULT_NO_SPIN_MUTEXES
         select HAVE_OPROFILE
         select HAVE_KPROBES
@@ -95,6 +99,9 @@ config S390
         select HAVE_ARCH_TRACEHOOK
         select INIT_ALL_POSSIBLE
         select HAVE_PERF_EVENTS
+        select HAVE_KERNEL_GZIP
+        select HAVE_KERNEL_BZIP2
+        select HAVE_KERNEL_LZMA
         select ARCH_INLINE_SPIN_TRYLOCK
         select ARCH_INLINE_SPIN_TRYLOCK_BH
         select ARCH_INLINE_SPIN_LOCK
diff --git a/arch/s390/Kconfig.debug b/arch/s390/Kconfig.debug
index 2283933a9a93..45e0c6199f36 100644
--- a/arch/s390/Kconfig.debug
+++ b/arch/s390/Kconfig.debug
@@ -6,4 +6,17 @@ config TRACE_IRQFLAGS_SUPPORT
 
 source "lib/Kconfig.debug"
 
+config DEBUG_STRICT_USER_COPY_CHECKS
+        bool "Strict user copy size checks"
+        ---help---
+          Enabling this option turns a certain set of sanity checks for user
+          copy operations into compile time warnings.
+
+          The copy_from_user() etc checks are there to help test if there
+          are sufficient security checks on the length argument of
+          the copy operation, by having gcc prove that the argument is
+          within bounds.
+
+          If unsure, or if you run an older (pre 4.4) gcc, say N.
+
 endmenu
diff --git a/arch/s390/Makefile b/arch/s390/Makefile
index fc8fb20e7fc0..0da10746e0e5 100644
--- a/arch/s390/Makefile
+++ b/arch/s390/Makefile
@@ -14,6 +14,7 @@
 #
 
 ifndef CONFIG_64BIT
+LD_BFD          := elf32-s390
 LDFLAGS         := -m elf_s390
 KBUILD_CFLAGS   += -m31
 KBUILD_AFLAGS   += -m31
@@ -21,6 +22,7 @@ UTS_MACHINE	:= s390
 STACK_SIZE      := 8192
 CHECKFLAGS      += -D__s390__ -msize-long
 else
+LD_BFD          := elf64-s390
 LDFLAGS         := -m elf64_s390
 MODFLAGS        += -fpic -D__PIC__
 KBUILD_CFLAGS   += -m64
@@ -30,6 +32,8 @@ STACK_SIZE	:= 16384
 CHECKFLAGS      += -D__s390__ -D__s390x__
 endif
 
+export LD_BFD
+
 cflags-$(CONFIG_MARCH_G5)   += $(call cc-option,-march=g5)
 cflags-$(CONFIG_MARCH_Z900) += $(call cc-option,-march=z900)
 cflags-$(CONFIG_MARCH_Z990) += $(call cc-option,-march=z990)
@@ -85,7 +89,9 @@ KBUILD_AFLAGS	+= $(aflags-y)
 OBJCOPYFLAGS    := -O binary
 LDFLAGS_vmlinux := -e start
 
-head-y          := arch/s390/kernel/head.o arch/s390/kernel/init_task.o
+head-y          := arch/s390/kernel/head.o
+head-y          += arch/s390/kernel/$(if $(CONFIG_64BIT),head64.o,head31.o)
+head-y          += arch/s390/kernel/init_task.o
 
 core-y          += arch/s390/mm/ arch/s390/kernel/ arch/s390/crypto/ \
                    arch/s390/appldata/ arch/s390/hypfs/ arch/s390/kvm/
@@ -99,12 +105,12 @@ drivers-$(CONFIG_OPROFILE)	+= arch/s390/oprofile/
 
 boot            := arch/s390/boot
 
-all: image
+all: image bzImage
 
 install: vmlinux
         $(Q)$(MAKE) $(build)=$(boot) $@
 
-image: vmlinux
+image bzImage: vmlinux
         $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
 
 zfcpdump:
@@ -116,4 +122,5 @@ archclean:
 # Don't use tabs in echo arguments
 define archhelp
   echo  '* image           - Kernel image for IPL ($(boot)/image)'
+  echo  '* bzImage         - Compressed kernel image for IPL ($(boot)/bzImage)'
 endef
diff --git a/arch/s390/boot/Makefile b/arch/s390/boot/Makefile
index 4d97eef36b8d..8800cf090694 100644
--- a/arch/s390/boot/Makefile
+++ b/arch/s390/boot/Makefile
@@ -9,10 +9,18 @@ COMPILE_VERSION := __linux_compile_version_id__`hostname |  \
 EXTRA_CFLAGS  := -DCOMPILE_VERSION=$(COMPILE_VERSION) -gstabs -I.
 
 targets := image
+targets += bzImage
+subdir- := compressed
 
 $(obj)/image: vmlinux FORCE
         $(call if_changed,objcopy)
 
+$(obj)/bzImage: $(obj)/compressed/vmlinux FORCE
+        $(call if_changed,objcopy)
+
+$(obj)/compressed/vmlinux: FORCE
+        $(Q)$(MAKE) $(build)=$(obj)/compressed $@
+
 install: $(CONFIGURE) $(obj)/image
         sh -x  $(srctree)/$(obj)/install.sh $(KERNELRELEASE) $(obj)/image \
               System.map Kerntypes "$(INSTALL_PATH)"
diff --git a/arch/s390/boot/compressed/Makefile b/arch/s390/boot/compressed/Makefile
new file mode 100644
index 000000000000..6e4a67ad07e1
--- /dev/null
+++ b/arch/s390/boot/compressed/Makefile
@@ -0,0 +1,60 @@
+#
+# linux/arch/s390/boot/compressed/Makefile
+#
+# create a compressed vmlinux image from the original vmlinux
+#
+
+BITS := $(if $(CONFIG_64BIT),64,31)
+
+targets := vmlinux.lds vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 \
+           vmlinux.bin.lzma misc.o piggy.o sizes.h head$(BITS).o
+
+KBUILD_CFLAGS := -m$(BITS) -D__KERNEL__ $(LINUX_INCLUDE) -O2
+KBUILD_CFLAGS += $(cflags-y)
+KBUILD_CFLAGS += $(call cc-option,-mpacked-stack)
+KBUILD_CFLAGS += $(call cc-option,-ffreestanding)
+
+GCOV_PROFILE := n
+
+OBJECTS := $(addprefix $(objtree)/arch/s390/kernel/, head.o sclp.o ebcdic.o)
+OBJECTS += $(obj)/head$(BITS).o $(obj)/misc.o $(obj)/piggy.o
+
+LDFLAGS_vmlinux := --oformat $(LD_BFD) -e startup -T
+$(obj)/vmlinux: $(obj)/vmlinux.lds $(OBJECTS)
+        $(call if_changed,ld)
+        @:
+
+sed-sizes := -e 's/^\([0-9a-fA-F]*\) . \(__bss_start\|_end\)$$/\#define SZ\2 0x\1/p'
+
+quiet_cmd_sizes = GEN $@
+      cmd_sizes = $(NM) $< | sed -n $(sed-sizes) > $@
+
+$(obj)/sizes.h: vmlinux
+        $(call if_changed,sizes)
+
+AFLAGS_head$(BITS).o += -I$(obj)
+$(obj)/head$(BITS).o: $(obj)/sizes.h
+
+CFLAGS_misc.o += -I$(obj)
+$(obj)/misc.o: $(obj)/sizes.h
+
+OBJCOPYFLAGS_vmlinux.bin :=  -R .comment -S
+$(obj)/vmlinux.bin: vmlinux
+        $(call if_changed,objcopy)
+
+vmlinux.bin.all-y := $(obj)/vmlinux.bin
+
+suffix-$(CONFIG_KERNEL_GZIP)  := gz
+suffix-$(CONFIG_KERNEL_BZIP2) := bz2
+suffix-$(CONFIG_KERNEL_LZMA)  := lzma
+
+$(obj)/vmlinux.bin.gz: $(vmlinux.bin.all-y)
+        $(call if_changed,gzip)
+$(obj)/vmlinux.bin.bz2: $(vmlinux.bin.all-y)
+        $(call if_changed,bzip2)
+$(obj)/vmlinux.bin.lzma: $(vmlinux.bin.all-y)
+        $(call if_changed,lzma)
+
+LDFLAGS_piggy.o := -r --format binary --oformat $(LD_BFD) -T
+$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.$(suffix-y)
+        $(call if_changed,ld)
diff --git a/arch/s390/boot/compressed/head31.S b/arch/s390/boot/compressed/head31.S
new file mode 100644
index 000000000000..2a5523a32bcc
--- /dev/null
+++ b/arch/s390/boot/compressed/head31.S
@@ -0,0 +1,51 @@
+/*
+ * Startup glue code to uncompress the kernel
+ *
+ * Copyright IBM Corp. 2010
+ *
+ *   Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
+ */
+
+#include <linux/init.h>
+#include <asm/asm-offsets.h>
+#include <asm/thread_info.h>
+#include <asm/page.h>
+#include "sizes.h"
+
+__HEAD
+        .globl  startup_continue
+startup_continue:
+        basr    %r13,0                  # get base
+.LPG1:
+        # setup stack
+        l       %r15,.Lstack-.LPG1(%r13)
+        ahi     %r15,-96
+        l       %r1,.Ldecompress-.LPG1(%r13)
+        basr    %r14,%r1
+        # setup registers for memory mover & branch to target
+        lr      %r4,%r2
+        l       %r2,.Loffset-.LPG1(%r13)
+        la      %r4,0(%r2,%r4)
+        l       %r3,.Lmvsize-.LPG1(%r13)
+        lr      %r5,%r3
+        # move the memory mover someplace safe
+        la      %r1,0x200
+        mvc     0(mover_end-mover,%r1),mover-.LPG1(%r13)
+        # decompress image is started at 0x11000
+        lr      %r6,%r2
+        br      %r1
+mover:
+        mvcle   %r2,%r4,0
+        jo      mover
+        br      %r6
+mover_end:
+
+        .align  8
+.Lstack:
+        .long   0x8000 + (1<<(PAGE_SHIFT+THREAD_ORDER))
+.Ldecompress:
+        .long   decompress_kernel
+.Loffset:
+        .long   0x11000
+.Lmvsize:
+        .long   SZ__bss_start
diff --git a/arch/s390/boot/compressed/head64.S b/arch/s390/boot/compressed/head64.S
new file mode 100644
index 000000000000..2982cb140550
--- /dev/null
+++ b/arch/s390/boot/compressed/head64.S
@@ -0,0 +1,48 @@
+/*
+ * Startup glue code to uncompress the kernel
+ *
+ * Copyright IBM Corp. 2010
+ *
+ *   Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
+ */
+
+#include <linux/init.h>
+#include <asm/asm-offsets.h>
+#include <asm/thread_info.h>
+#include <asm/page.h>
+#include "sizes.h"
+
+__HEAD
+        .globl  startup_continue
+startup_continue:
+        basr    %r13,0                  # get base
+.LPG1:
+        # setup stack
+        lg      %r15,.Lstack-.LPG1(%r13)
+        aghi    %r15,-160
+        brasl   %r14,decompress_kernel
+        # setup registers for memory mover & branch to target
+        lgr     %r4,%r2
+        lg      %r2,.Loffset-.LPG1(%r13)
+        la      %r4,0(%r2,%r4)
+        lg      %r3,.Lmvsize-.LPG1(%r13)
+        lgr     %r5,%r3
+        # move the memory mover someplace safe
+        la      %r1,0x200
+        mvc     0(mover_end-mover,%r1),mover-.LPG1(%r13)
+        # decompress image is started at 0x11000
+        lgr     %r6,%r2
+        br      %r1
+mover:
+        mvcle   %r2,%r4,0
+        jo      mover
+        br      %r6
+mover_end:
+
+        .align  8
+.Lstack:
+        .quad   0x8000 + (1<<(PAGE_SHIFT+THREAD_ORDER))
+.Loffset:
+        .quad   0x11000
+.Lmvsize:
+        .quad   SZ__bss_start
diff --git a/arch/s390/boot/compressed/misc.c b/arch/s390/boot/compressed/misc.c
new file mode 100644
index 000000000000..a97d69525829
--- /dev/null
+++ b/arch/s390/boot/compressed/misc.c
@@ -0,0 +1,158 @@
+/*
+ * Definitions and wrapper functions for kernel decompressor
+ *
+ * Copyright IBM Corp. 2010
+ *
+ * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
+ */
+
+#include <asm/uaccess.h>
+#include <asm/page.h>
+#include <asm/ipl.h>
+#include "sizes.h"
+
+/*
+ * gzip declarations
+ */
+#define STATIC static
+
+#undef memset
+#undef memcpy
+#undef memmove
+#define memzero(s, n) memset((s), 0, (n))
+
+/* Symbols defined by linker scripts */
+extern char input_data[];
+extern int input_len;
+extern int _text;
+extern int _end;
+
+static void error(char *m);
+
+static unsigned long free_mem_ptr;
+static unsigned long free_mem_end_ptr;
+
+#ifdef CONFIG_HAVE_KERNEL_BZIP2
+#define HEAP_SIZE       0x400000
+#else
+#define HEAP_SIZE       0x10000
+#endif
+
+#ifdef CONFIG_KERNEL_GZIP
+#include "../../../../lib/decompress_inflate.c"
+#endif
+
+#ifdef CONFIG_KERNEL_BZIP2
+#include "../../../../lib/decompress_bunzip2.c"
+#endif
+
+#ifdef CONFIG_KERNEL_LZMA
+#include "../../../../lib/decompress_unlzma.c"
+#endif
+
+extern _sclp_print_early(const char *);
+
+int puts(const char *s)
+{
+        _sclp_print_early(s);
+        return 0;
+}
+
+void *memset(void *s, int c, size_t n)
+{
+        char *xs;
+
+        if (c == 0)
+                return __builtin_memset(s, 0, n);
+
+        xs = (char *) s;
+        if (n > 0)
+                do {
+                        *xs++ = c;
+                } while (--n > 0);
+        return s;
+}
+
+void *memcpy(void *__dest, __const void *__src, size_t __n)
+{
+        return __builtin_memcpy(__dest, __src, __n);
+}
+
+void *memmove(void *__dest, __const void *__src, size_t __n)
+{
+        char *d;
+        const char *s;
+
+        if (__dest <= __src)
+                return __builtin_memcpy(__dest, __src, __n);
+        d = __dest + __n;
+        s = __src + __n;
+        while (__n--)
+                *--d = *--s;
+        return __dest;
+}
+
+static void error(char *x)
+{
+        unsigned long long psw = 0x000a0000deadbeefULL;
+
+        puts("\n\n");
+        puts(x);
+        puts("\n\n -- System halted");
+
+        asm volatile("lpsw %0" : : "Q" (psw));
+}
+
+/*
+ * Safe guard the ipl parameter block against a memory area that will be
+ * overwritten. The validity check for the ipl parameter block is complex
+ * (see cio_get_iplinfo and ipl_save_parameters) but if the pointer to
+ * the ipl parameter block intersects with the passed memory area we can
+ * safely assume that we can read from that memory. In that case just copy
+ * the memory to IPL_PARMBLOCK_ORIGIN even if there is no ipl parameter
+ * block.
+ */
+static void check_ipl_parmblock(void *start, unsigned long size)
+{
+        void *src, *dst;
+
+        src = (void *)(unsigned long) S390_lowcore.ipl_parmblock_ptr;
+        if (src + PAGE_SIZE <= start || src >= start + size)
+                return;
+        dst = (void *) IPL_PARMBLOCK_ORIGIN;
+        memmove(dst, src, PAGE_SIZE);
+        S390_lowcore.ipl_parmblock_ptr = IPL_PARMBLOCK_ORIGIN;
+}
+
+unsigned long decompress_kernel(void)
+{
+        unsigned long output_addr;
+        unsigned char *output;
+
+        free_mem_ptr = (unsigned long)&_end;
+        free_mem_end_ptr = free_mem_ptr + HEAP_SIZE;
+        output = (unsigned char *) ((free_mem_end_ptr + 4095UL) & -4096UL);
+
+        check_ipl_parmblock((void *) 0, (unsigned long) output + SZ__bss_start);
+
+#ifdef CONFIG_BLK_DEV_INITRD
+        /*
+         * Move the initrd right behind the end of the decompressed
+         * kernel image.
+         */
+        if (INITRD_START && INITRD_SIZE &&
+            INITRD_START < (unsigned long) output + SZ__bss_start) {
+                check_ipl_parmblock(output + SZ__bss_start,
+                                    INITRD_START + INITRD_SIZE);
+                memmove(output + SZ__bss_start,
+                        (void *) INITRD_START, INITRD_SIZE);
+                INITRD_START = (unsigned long) output + SZ__bss_start;
+        }
+#endif
+
+        puts("Uncompressing Linux... ");
+        decompress(input_data, input_len, NULL, NULL, output, NULL, error);
+        puts("Ok, booting the kernel.\n");
+        return (unsigned long) output;
+}
+
diff --git a/arch/s390/boot/compressed/vmlinux.lds.S b/arch/s390/boot/compressed/vmlinux.lds.S
new file mode 100644
index 000000000000..d80f79d8dd9c
--- /dev/null
+++ b/arch/s390/boot/compressed/vmlinux.lds.S
@@ -0,0 +1,55 @@
+#include <asm-generic/vmlinux.lds.h>
+
+#ifdef CONFIG_64BIT
+OUTPUT_FORMAT("elf64-s390", "elf64-s390", "elf64-s390")
+OUTPUT_ARCH(s390:64-bit)
+#else
+OUTPUT_FORMAT("elf32-s390", "elf32-s390", "elf32-s390")
+OUTPUT_ARCH(s390)
+#endif
+
+ENTRY(startup)
+
+SECTIONS
+{
+        /* Be careful parts of head_64.S assume startup_32 is at
+         * address 0.
+         */
+        . = 0;
+        .head.text : {
+                _head = . ;
+                HEAD_TEXT
+                _ehead = . ;
+        }
+        .rodata.compressed : {
+                *(.rodata.compressed)
+        }
+        .text : {
+                _text = .;      /* Text */
+                *(.text)
+                *(.text.*)
+                _etext = . ;
+        }
+        .rodata : {
+                _rodata = . ;
+                *(.rodata)       /* read-only data */
+                *(.rodata.*)
+                _erodata = . ;
+        }
+        .data : {
+                _data = . ;
+                *(.data)
+                *(.data.*)
+                _edata = . ;
+        }
+        . = ALIGN(256);
+        .bss : {
+                _bss = . ;
+                *(.bss)
+                *(.bss.*)
+                *(COMMON)
+                . = ALIGN(8);   /* For convenience during zeroing */
+                _ebss = .;
+        }
+        _end = .;
+}
diff --git a/arch/s390/boot/compressed/vmlinux.scr b/arch/s390/boot/compressed/vmlinux.scr
new file mode 100644
index 000000000000..f02382ae5c48
--- /dev/null
+++ b/arch/s390/boot/compressed/vmlinux.scr
@@ -0,0 +1,10 @@
+SECTIONS
+{
+  .rodata.compressed : {
+        input_len = .;
+        LONG(input_data_end - input_data) input_data = .;
+        *(.data)
+        output_len = . - 4;
+        input_data_end = .;
+        }
+}
diff --git a/arch/s390/crypto/aes_s390.c b/arch/s390/crypto/aes_s390.c
index 6be4503201ac..58f46734465f 100644
--- a/arch/s390/crypto/aes_s390.c
+++ b/arch/s390/crypto/aes_s390.c
@@ -78,14 +78,14 @@ static int setkey_fallback_cip(struct crypto_tfm *tfm, const u8 *in_key,
         struct s390_aes_ctx *sctx = crypto_tfm_ctx(tfm);
         int ret;
 
-        sctx->fallback.blk->base.crt_flags &= ~CRYPTO_TFM_REQ_MASK;
-        sctx->fallback.blk->base.crt_flags |= (tfm->crt_flags &
+        sctx->fallback.cip->base.crt_flags &= ~CRYPTO_TFM_REQ_MASK;
+        sctx->fallback.cip->base.crt_flags |= (tfm->crt_flags &
                         CRYPTO_TFM_REQ_MASK);
 
         ret = crypto_cipher_setkey(sctx->fallback.cip, in_key, key_len);
         if (ret) {
                 tfm->crt_flags &= ~CRYPTO_TFM_RES_MASK;
-                tfm->crt_flags |= (sctx->fallback.blk->base.crt_flags &
+                tfm->crt_flags |= (sctx->fallback.cip->base.crt_flags &
                                 CRYPTO_TFM_RES_MASK);
         }
         return ret;
diff --git a/arch/s390/defconfig b/arch/s390/defconfig
index b416aa11b91e..7ae71cc56973 100644
--- a/arch/s390/defconfig
+++ b/arch/s390/defconfig
@@ -36,6 +36,13 @@ CONFIG_LOCK_KERNEL=y
 CONFIG_INIT_ENV_ARG_LIMIT=32
 CONFIG_LOCALVERSION=""
 CONFIG_LOCALVERSION_AUTO=y
+CONFIG_HAVE_KERNEL_GZIP=y
+CONFIG_HAVE_KERNEL_BZIP2=y
+CONFIG_HAVE_KERNEL_LZMA=y
+CONFIG_KERNEL_GZIP=y
+# CONFIG_KERNEL_BZIP2 is not set
+# CONFIG_KERNEL_LZMA is not set
+# CONFIG_KERNEL_LZO is not set
 CONFIG_SWAP=y
 CONFIG_SYSVIPC=y
 CONFIG_SYSVIPC_SYSCTL=y
diff --git a/arch/s390/hypfs/hypfs_diag.c b/arch/s390/hypfs/hypfs_diag.c
index 2b92d501425f..87cf523192e9 100644
--- a/arch/s390/hypfs/hypfs_diag.c
+++ b/arch/s390/hypfs/hypfs_diag.c
@@ -488,7 +488,7 @@ out:
 
 static int diag224(void *ptr)
 {
-        int rc = -ENOTSUPP;
+        int rc = -EOPNOTSUPP;
 
         asm volatile(
                 "       diag    %1,%2,0x224\n"
@@ -507,7 +507,7 @@ static int diag224_get_name_table(void)
                 return -ENOMEM;
         if (diag224(diag224_cpu_names)) {
                 kfree(diag224_cpu_names);
-                return -ENOTSUPP;
+                return -EOPNOTSUPP;
         }
         EBCASC(diag224_cpu_names + 16, (*diag224_cpu_names + 1) * 16);
         return 0;
diff --git a/arch/s390/include/asm/atomic.h b/arch/s390/include/asm/atomic.h
index 2a113d6a7dfd..451bfbb9db3d 100644
--- a/arch/s390/include/asm/atomic.h
+++ b/arch/s390/include/asm/atomic.h
@@ -18,8 +18,6 @@
 
 #define ATOMIC_INIT(i)  { (i) }
 
-#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
-
 #define __CS_LOOP(ptr, op_val, op_string) ({                            \
         int old_val, new_val;                                           \
         asm volatile(                                                   \
@@ -35,26 +33,6 @@
         new_val;                                                        \
 })
 
-#else /* __GNUC__ */
-
-#define __CS_LOOP(ptr, op_val, op_string) ({                            \
-        int 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;                                                        \
-})
-
-#endif /* __GNUC__ */
-
 static inline int atomic_read(const atomic_t *v)
 {
         barrier();
@@ -101,19 +79,11 @@ static inline void atomic_set_mask(unsigned long mask, atomic_t *v)
 
 static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
 {
-#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
         asm volatile(
                 "       cs      %0,%2,%1"
                 : "+d" (old), "=Q" (v->counter)
                 : "d" (new), "Q" (v->counter)
                 : "cc", "memory");
-#else /* __GNUC__ */
-        asm volatile(
-                "       cs      %0,%3,0(%2)"
-                : "+d" (old), "=m" (v->counter)
-                : "a" (v), "d" (new), "m" (v->counter)
-                : "cc", "memory");
-#endif /* __GNUC__ */
         return old;
 }
 
@@ -140,8 +110,6 @@ static inline int atomic_add_unless(atomic_t *v, int a, int u)
 
 #ifdef CONFIG_64BIT
 
-#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
-
 #define __CSG_LOOP(ptr, op_val, op_string) ({                           \
         long long old_val, new_val;                                     \
         asm volatile(                                                   \
@@ -157,26 +125,6 @@ static inline int atomic_add_unless(atomic_t *v, int a, int u)
         new_val;                                                        \
 })
 
-#else /* __GNUC__ */
-
-#define __CSG_LOOP(ptr, op_val, op_string) ({                           \
-        long long 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;                                                        \
-})
-
-#endif /* __GNUC__ */
-
 static inline long long atomic64_read(const atomic64_t *v)
 {
         barrier();
@@ -214,19 +162,11 @@ static inline void atomic64_set_mask(unsigned long mask, atomic64_t *v)
 static inline long long atomic64_cmpxchg(atomic64_t *v,
                                              long long old, long long new)
 {
-#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
         asm volatile(
                 "       csg     %0,%2,%1"
                 : "+d" (old), "=Q" (v->counter)
                 : "d" (new), "Q" (v->counter)
                 : "cc", "memory");
-#else /* __GNUC__ */
-        asm volatile(
-                "       csg     %0,%3,0(%2)"
-                : "+d" (old), "=m" (v->counter)
-                : "a" (v), "d" (new), "m" (v->counter)
-                : "cc", "memory");
-#endif /* __GNUC__ */
         return old;
 }
 
@@ -243,10 +183,8 @@ static inline long long atomic64_read(const atomic64_t *v)
         register_pair rp;
 
         asm volatile(
-                "       lm      %0,%N0,0(%1)"
-                : "=&d" (rp)
-                : "a" (&v->counter), "m" (v->counter)
-                );
+                "       lm      %0,%N0,%1"
+                : "=&d" (rp) : "Q" (v->counter) );
         return rp.pair;
 }
 
@@ -255,10 +193,8 @@ static inline void atomic64_set(atomic64_t *v, long long i)
         register_pair rp = {.pair = i};
 
         asm volatile(
-                "       stm     %1,%N1,0(%2)"
-                : "=m" (v->counter)
-                : "d" (rp), "a" (&v->counter)
-                );
+                "       stm     %1,%N1,%0"
+                : "=Q" (v->counter) : "d" (rp) );
 }
 
 static inline long long atomic64_xchg(atomic64_t *v, long long new)
@@ -267,11 +203,11 @@ static inline long long atomic64_xchg(atomic64_t *v, long long new)
         register_pair rp_old;
 
         asm volatile(
-                "       lm      %0,%N0,0(%2)\n"
-                "0:     cds     %0,%3,0(%2)\n"
+                "       lm      %0,%N0,%1\n"
+                "0:     cds     %0,%2,%1\n"
                 "       jl      0b\n"
-                : "=&d" (rp_old), "+m" (v->counter)
-                : "a" (&v->counter), "d" (rp_new)
+                : "=&d" (rp_old), "=Q" (v->counter)
+                : "d" (rp_new), "Q" (v->counter)
                 : "cc");
         return rp_old.pair;
 }
@@ -283,9 +219,9 @@ static inline long long atomic64_cmpxchg(atomic64_t *v,
         register_pair rp_new = {.pair = new};
 
         asm volatile(
-                "       cds     %0,%3,0(%2)"
-                : "+&d" (rp_old), "+m" (v->counter)
-                : "a" (&v->counter), "d" (rp_new)
+                "       cds     %0,%2,%1"
+                : "+&d" (rp_old), "=Q" (v->counter)
+                : "d" (rp_new), "Q" (v->counter)
                 : "cc");
         return rp_old.pair;
 }
diff --git a/arch/s390/include/asm/bitops.h b/arch/s390/include/asm/bitops.h
index b30606f6d523..2e05972c5085 100644
--- a/arch/s390/include/asm/bitops.h
+++ b/arch/s390/include/asm/bitops.h
@@ -71,8 +71,6 @@ extern const char _sb_findmap[];
 #define __BITOPS_AND            "nr"
 #define __BITOPS_XOR            "xr"
 
-#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
-
 #define __BITOPS_LOOP(__old, __new, __addr, __val, __op_string) \
         asm volatile(                                           \
                 "       l       %0,%2\n"                        \
@@ -85,22 +83,6 @@ extern const char _sb_findmap[];
                 : "d" (__val), "Q" (*(unsigned long *) __addr)  \
                 : "cc");
 
-#else /* __GNUC__ */
-
-#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");
-
-#endif /* __GNUC__ */
-
 #else /* __s390x__ */
 
 #define __BITOPS_ALIGN          7
@@ -109,8 +91,6 @@ extern const char _sb_findmap[];
 #define __BITOPS_AND            "ngr"
 #define __BITOPS_XOR            "xgr"
 
-#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
-
 #define __BITOPS_LOOP(__old, __new, __addr, __val, __op_string) \
         asm volatile(                                           \
                 "       lg      %0,%2\n"                        \
@@ -123,23 +103,6 @@ extern const char _sb_findmap[];
                 : "d" (__val), "Q" (*(unsigned long *) __addr)  \
                 : "cc");
 
-#else /* __GNUC__ */
-
-#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 /* __GNUC__ */
-
 #endif /* __s390x__ */
 
 #define __BITOPS_WORDS(bits) (((bits)+__BITOPS_WORDSIZE-1)/__BITOPS_WORDSIZE)
@@ -261,9 +224,8 @@ static inline void __set_bit(unsigned long nr, volatile unsigned long *ptr)
 
         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" );
+                "       oc      %O0(1,%R0),%1"
+                : "=Q" (*(char *) addr) : "Q" (_oi_bitmap[nr & 7]) : "cc" );
 }
 
 static inline void 
@@ -290,9 +252,8 @@ __clear_bit(unsigned long nr, volatile unsigned long *ptr)
 
         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");
+                "       nc      %O0(1,%R0),%1"
+                : "=Q" (*(char *) addr) : "Q" (_ni_bitmap[nr & 7]) : "cc" );
 }
 
 static inline void 
@@ -318,9 +279,8 @@ static inline void __change_bit(unsigned long nr, volatile unsigned long *ptr)
 
         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" );
+                "       xc      %O0(1,%R0),%1"
+                : "=Q" (*(char *) addr) : "Q" (_oi_bitmap[nr & 7]) : "cc" );
 }
 
 static inline void 
@@ -349,10 +309,9 @@ test_and_set_bit_simple(unsigned long nr, volatile unsigned long *ptr)
         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");
+                "       oc      %O0(1,%R0),%1"
+                : "=Q" (*(char *) addr) : "Q" (_oi_bitmap[nr & 7])
+                : "cc", "memory");
         return (ch >> (nr & 7)) & 1;
 }
 #define __test_and_set_bit(X,Y)         test_and_set_bit_simple(X,Y)
@@ -369,10 +328,9 @@ test_and_clear_bit_simple(unsigned long nr, volatile unsigned long *ptr)
         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");
+                "       nc      %O0(1,%R0),%1"
+                : "=Q" (*(char *) addr) : "Q" (_ni_bitmap[nr & 7])
+                : "cc", "memory");
         return (ch >> (nr & 7)) & 1;
 }
 #define __test_and_clear_bit(X,Y)       test_and_clear_bit_simple(X,Y)
@@ -389,10 +347,9 @@ test_and_change_bit_simple(unsigned long nr, volatile unsigned long *ptr)
         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");
+                "       xc      %O0(1,%R0),%1"
+                : "=Q" (*(char *) addr) : "Q" (_oi_bitmap[nr & 7])
+                : "cc", "memory");
         return (ch >> (nr & 7)) & 1;
 }
 #define __test_and_change_bit(X,Y)      test_and_change_bit_simple(X,Y)
@@ -591,11 +548,11 @@ static inline unsigned long __load_ulong_le(const unsigned long *p,
         p = (unsigned long *)((unsigned long) p + offset);
 #ifndef __s390x__
         asm volatile(
-                "       ic      %0,0(%1)\n"
-                "       icm     %0,2,1(%1)\n"
-                "       icm     %0,4,2(%1)\n"
-                "       icm     %0,8,3(%1)"
-                : "=&d" (word) : "a" (p), "m" (*p) : "cc");
+                "       ic      %0,%O1(%R1)\n"
+                "       icm     %0,2,%O1+1(%R1)\n"
+                "       icm     %0,4,%O1+2(%R1)\n"
+                "       icm     %0,8,%O1+3(%R1)"
+                : "=&d" (word) : "Q" (*p) : "cc");
 #else
         asm volatile(
                 "       lrvg    %0,%1"
diff --git a/arch/s390/include/asm/bug.h b/arch/s390/include/asm/bug.h
index b1066b9fb5f8..9beeb9db9b23 100644
--- a/arch/s390/include/asm/bug.h
+++ b/arch/s390/include/asm/bug.h
@@ -5,12 +5,6 @@
 
 #ifdef CONFIG_BUG
 
-#ifdef CONFIG_64BIT
-#define S390_LONG ".quad"
-#else
-#define S390_LONG ".long"
-#endif
-
 #ifdef CONFIG_DEBUG_BUGVERBOSE
 
 #define __EMIT_BUG(x) do {                                      \
@@ -21,7 +15,7 @@
                 "2:     .asciz  \""__FILE__"\"\n"               \
                 ".previous\n"                                   \
                 ".section __bug_table,\"a\"\n"                  \
-                "3:\t"  S390_LONG "\t1b,2b\n"                   \
+                "3:     .long   1b-3b,2b-3b\n"                  \
                 "       .short  %0,%1\n"                        \
                 "       .org    3b+%2\n"                        \
                 ".previous\n"                                   \
@@ -37,7 +31,7 @@
                 "0:     j       0b+2\n"                 \
                 "1:\n"                                  \
                 ".section __bug_table,\"a\"\n"          \
-                "2:\t"  S390_LONG "\t1b\n"              \
+                "2:     .long   1b-2b\n"                \
                 "       .short  %0\n"                   \
                 "       .org    2b+%1\n"                \
                 ".previous\n"                           \
diff --git a/arch/s390/include/asm/crw.h b/arch/s390/include/asm/crw.h
index 2185a6d619d3..749a97e61bea 100644
--- a/arch/s390/include/asm/crw.h
+++ b/arch/s390/include/asm/crw.h
@@ -32,6 +32,7 @@ typedef void (*crw_handler_t)(struct crw *, struct crw *, int);
 extern int crw_register_handler(int rsc, crw_handler_t handler);
 extern void crw_unregister_handler(int rsc);
 extern void crw_handle_channel_report(void);
+void crw_wait_for_channel_report(void);
 
 #define NR_RSCS 16
 
diff --git a/arch/s390/include/asm/etr.h b/arch/s390/include/asm/etr.h
index 80ef58c61970..538e1b36a726 100644
--- a/arch/s390/include/asm/etr.h
+++ b/arch/s390/include/asm/etr.h
@@ -145,11 +145,11 @@ static inline int etr_setr(struct etr_eacr *ctrl)
         int rc = -ENOSYS;
 
         asm volatile(
-                "       .insn   s,0xb2160000,0(%2)\n"
+                "       .insn   s,0xb2160000,%1\n"
                 "0:     la      %0,0\n"
                 "1:\n"
                 EX_TABLE(0b,1b)
-                : "+d" (rc) : "m" (*ctrl), "a" (ctrl));
+                : "+d" (rc) : "Q" (*ctrl));
         return rc;
 }
 
@@ -159,11 +159,11 @@ static inline int etr_stetr(struct etr_aib *aib)
         int rc = -ENOSYS;
 
         asm volatile(
-                "       .insn   s,0xb2170000,0(%2)\n"
+                "       .insn   s,0xb2170000,%1\n"
                 "0:     la      %0,0\n"
                 "1:\n"
                 EX_TABLE(0b,1b)
-                : "+d" (rc) : "m" (*aib), "a" (aib));
+                : "+d" (rc) : "Q" (*aib));
         return rc;
 }
 
@@ -174,11 +174,11 @@ static inline int etr_steai(struct etr_aib *aib, unsigned int func)
         int rc = -ENOSYS;
 
         asm volatile(
-                "       .insn   s,0xb2b30000,0(%2)\n"
+                "       .insn   s,0xb2b30000,%1\n"
                 "0:     la      %0,0\n"
                 "1:\n"
                 EX_TABLE(0b,1b)
-                : "+d" (rc) : "m" (*aib), "a" (aib), "d" (reg0));
+                : "+d" (rc) : "Q" (*aib), "d" (reg0));
         return rc;
 }
 
diff --git a/arch/s390/include/asm/irqflags.h b/arch/s390/include/asm/irqflags.h
index c2fb432f576a..15b3ac253898 100644
--- a/arch/s390/include/asm/irqflags.h
+++ b/arch/s390/include/asm/irqflags.h
@@ -8,8 +8,6 @@
 
 #include <linux/types.h>
 
-#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
-
 /* store then or system mask. */
 #define __raw_local_irq_stosm(__or)                                     \
 ({                                                                      \
@@ -36,40 +34,6 @@
         asm volatile("ssm   %0" : : "Q" (__mask) : "memory");           \
 })
 
-#else /* __GNUC__ */
-
-/* store then or system mask. */
-#define __raw_local_irq_stosm(__or)                                     \
-({                                                                      \
-        unsigned long __mask;                                           \
-        asm volatile(                                                   \
-                "       stosm   0(%1),%2"                               \
-                : "=m" (__mask)                                         \
-                : "a" (&__mask), "i" (__or) : "memory");                \
-        __mask;                                                         \
-})
-
-/* store then and system mask. */
-#define __raw_local_irq_stnsm(__and)                                    \
-({                                                                      \
-        unsigned long __mask;                                           \
-        asm volatile(                                                   \
-                "       stnsm   0(%1),%2"                               \
-                : "=m" (__mask)                                         \
-                : "a" (&__mask), "i" (__and) : "memory");               \
-        __mask;                                                         \
-})
-
-/* set system mask. */
-#define __raw_local_irq_ssm(__mask)                                     \
-({                                                                      \
-        asm volatile(                                                   \
-                "       ssm     0(%0)"                                  \
-                : : "a" (&__mask), "m" (__mask) : "memory");            \
-})
-
-#endif /* __GNUC__ */
-
 /* interrupt control.. */
 static inline unsigned long raw_local_irq_enable(void)
 {
diff --git a/arch/s390/include/asm/lowcore.h b/arch/s390/include/asm/lowcore.h
index c25dfac7dd76..05527c040b7a 100644
--- a/arch/s390/include/asm/lowcore.h
+++ b/arch/s390/include/asm/lowcore.h
@@ -1,141 +1,16 @@
 /*
- *  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)
+ *    Copyright IBM Corp. 1999,2010
+ *    Author(s): Hartmut Penner <hp@de.ibm.com>,
+ *               Martin Schwidefsky <schwidefsky@de.ibm.com>,
+ *               Denis Joseph Barrow,
  */
 
 #ifndef _ASM_S390_LOWCORE_H
 #define _ASM_S390_LOWCORE_H
 
-#define __LC_IPL_PARMBLOCK_PTR          0x0014
-#define __LC_EXT_PARAMS                 0x0080
-#define __LC_CPU_ADDRESS                0x0084
-#define __LC_EXT_INT_CODE               0x0086
-
-#define __LC_SVC_ILC                    0x0088
-#define __LC_SVC_INT_CODE               0x008a
-#define __LC_PGM_ILC                    0x008c
-#define __LC_PGM_INT_CODE               0x008e
-
-#define __LC_PER_ATMID                  0x0096
-#define __LC_PER_ADDRESS                0x0098
-#define __LC_PER_ACCESS_ID              0x00a1
-#define __LC_AR_MODE_ID                 0x00a3
-
-#define __LC_SUBCHANNEL_ID              0x00b8
-#define __LC_SUBCHANNEL_NR              0x00ba
-#define __LC_IO_INT_PARM                0x00bc
-#define __LC_IO_INT_WORD                0x00c0
-#define __LC_STFL_FAC_LIST              0x00c8
-#define __LC_MCCK_CODE                  0x00e8
-
-#define __LC_DUMP_REIPL                 0x0e00
-
-#ifndef __s390x__
-#define __LC_EXT_OLD_PSW                0x0018
-#define __LC_SVC_OLD_PSW                0x0020
-#define __LC_PGM_OLD_PSW                0x0028
-#define __LC_MCK_OLD_PSW                0x0030
-#define __LC_IO_OLD_PSW                 0x0038
-#define __LC_EXT_NEW_PSW                0x0058
-#define __LC_SVC_NEW_PSW                0x0060
-#define __LC_PGM_NEW_PSW                0x0068
-#define __LC_MCK_NEW_PSW                0x0070
-#define __LC_IO_NEW_PSW                 0x0078
-#define __LC_SAVE_AREA                  0x0200
-#define __LC_RETURN_PSW                 0x0240
-#define __LC_RETURN_MCCK_PSW            0x0248
-#define __LC_SYNC_ENTER_TIMER           0x0250
-#define __LC_ASYNC_ENTER_TIMER          0x0258
-#define __LC_EXIT_TIMER                 0x0260
-#define __LC_USER_TIMER                 0x0268
-#define __LC_SYSTEM_TIMER               0x0270
-#define __LC_STEAL_TIMER                0x0278
-#define __LC_LAST_UPDATE_TIMER          0x0280
-#define __LC_LAST_UPDATE_CLOCK          0x0288
-#define __LC_CURRENT                    0x0290
-#define __LC_THREAD_INFO                0x0294
-#define __LC_KERNEL_STACK               0x0298
-#define __LC_ASYNC_STACK                0x029c
-#define __LC_PANIC_STACK                0x02a0
-#define __LC_KERNEL_ASCE                0x02a4
-#define __LC_USER_ASCE                  0x02a8
-#define __LC_USER_EXEC_ASCE             0x02ac
-#define __LC_CPUID                      0x02b0
-#define __LC_INT_CLOCK                  0x02c8
-#define __LC_MACHINE_FLAGS              0x02d8
-#define __LC_FTRACE_FUNC                0x02dc
-#define __LC_IRB                        0x0300
-#define __LC_PFAULT_INTPARM             0x0080
-#define __LC_CPU_TIMER_SAVE_AREA        0x00d8
-#define __LC_CLOCK_COMP_SAVE_AREA       0x00e0
-#define __LC_PSW_SAVE_AREA              0x0100
-#define __LC_PREFIX_SAVE_AREA           0x0108
-#define __LC_AREGS_SAVE_AREA            0x0120
-#define __LC_FPREGS_SAVE_AREA           0x0160
-#define __LC_GPREGS_SAVE_AREA           0x0180
-#define __LC_CREGS_SAVE_AREA            0x01c0
-#else /* __s390x__ */
-#define __LC_LAST_BREAK                 0x0110
-#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_RESTART_PSW                0x01a0
-#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
-#define __LC_SAVE_AREA                  0x0200
-#define __LC_RETURN_PSW                 0x0280
-#define __LC_RETURN_MCCK_PSW            0x0290
-#define __LC_SYNC_ENTER_TIMER           0x02a0
-#define __LC_ASYNC_ENTER_TIMER          0x02a8
-#define __LC_EXIT_TIMER                 0x02b0
-#define __LC_USER_TIMER                 0x02b8
-#define __LC_SYSTEM_TIMER               0x02c0
-#define __LC_STEAL_TIMER                0x02c8
-#define __LC_LAST_UPDATE_TIMER          0x02d0
-#define __LC_LAST_UPDATE_CLOCK          0x02d8
-#define __LC_CURRENT                    0x02e0
-#define __LC_THREAD_INFO                0x02e8
-#define __LC_KERNEL_STACK               0x02f0
-#define __LC_ASYNC_STACK                0x02f8
-#define __LC_PANIC_STACK                0x0300
-#define __LC_KERNEL_ASCE                0x0308
-#define __LC_USER_ASCE                  0x0310
-#define __LC_USER_EXEC_ASCE             0x0318
-#define __LC_CPUID                      0x0320
-#define __LC_INT_CLOCK                  0x0340
-#define __LC_VDSO_PER_CPU               0x0350
-#define __LC_MACHINE_FLAGS              0x0358
-#define __LC_FTRACE_FUNC                0x0360
-#define __LC_IRB                        0x0380
-#define __LC_PASTE                      0x03c0
-#define __LC_PFAULT_INTPARM             0x11b8
-#define __LC_FPREGS_SAVE_AREA           0x1200
-#define __LC_GPREGS_SAVE_AREA           0x1280
-#define __LC_PSW_SAVE_AREA              0x1300
-#define __LC_PREFIX_SAVE_AREA           0x1318
-#define __LC_FP_CREG_SAVE_AREA          0x131c
-#define __LC_TODREG_SAVE_AREA           0x1324
-#define __LC_CPU_TIMER_SAVE_AREA        0x1328
-#define __LC_CLOCK_COMP_SAVE_AREA       0x1331
-#define __LC_AREGS_SAVE_AREA            0x1340
-#define __LC_CREGS_SAVE_AREA            0x1380
-#endif /* __s390x__ */
-
-#ifndef __ASSEMBLY__
-
-#include <asm/cpu.h>
-#include <asm/ptrace.h>
 #include <linux/types.h>
+#include <asm/ptrace.h>
+#include <asm/cpu.h>
 
 void restart_int_handler(void);
 void ext_int_handler(void);
@@ -144,7 +19,12 @@ void pgm_check_handler(void);
 void mcck_int_handler(void);
 void io_int_handler(void);
 
-struct save_area_s390 {
+#ifdef CONFIG_32BIT
+
+#define LC_ORDER 0
+#define LC_PAGES 1
+
+struct save_area {
         u32     ext_save;
         u64     timer;
         u64     clk_cmp;
@@ -156,54 +36,13 @@ struct save_area_s390 {
         u64     fp_regs[4];
         u32     gp_regs[16];
         u32     ctrl_regs[16];
-}  __attribute__((packed));
+} __packed;
 
-struct save_area_s390x {
-        u64     fp_regs[16];
-        u64     gp_regs[16];
-        u8      psw[16];
-        u8      pad1[8];
-        u32     pref_reg;
-        u32     fp_ctrl_reg;
-        u8      pad2[4];
-        u32     tod_reg;
-        u64     timer;
-        u64     clk_cmp;
-        u8      pad3[8];
-        u32     acc_regs[16];
-        u64     ctrl_regs[16];
-}  __attribute__((packed));
-
-union save_area {
-        struct save_area_s390   s390;
-        struct save_area_s390x  s390x;
-};
-
-#define SAVE_AREA_BASE_S390     0xd4
-#define SAVE_AREA_BASE_S390X    0x1200
-
-#ifndef __s390x__
-#define SAVE_AREA_SIZE sizeof(struct save_area_s390)
-#define SAVE_AREA_BASE SAVE_AREA_BASE_S390
-#else
-#define SAVE_AREA_SIZE sizeof(struct save_area_s390x)
-#define SAVE_AREA_BASE SAVE_AREA_BASE_S390X
-#endif
-
-#ifndef __s390x__
-#define LC_ORDER 0
-#else
-#define LC_ORDER 1
-#endif
-
-#define LC_PAGES (1UL << LC_ORDER)
-
-struct _lowcore
-{
-#ifndef __s390x__
-        /* 0x0000 - 0x01ff: defined by architecture */
+struct _lowcore {
         psw_t   restart_psw;                    /* 0x0000 */
-        __u32   ccw2[4];                        /* 0x0008 */
+        psw_t   restart_old_psw;                /* 0x0008 */
+        __u8    pad_0x0010[0x0014-0x0010];      /* 0x0010 */
+        __u32   ipl_parmblock_ptr;              /* 0x0014 */
         psw_t   external_old_psw;               /* 0x0018 */
         psw_t   svc_old_psw;                    /* 0x0020 */
         psw_t   program_old_psw;                /* 0x0028 */
@@ -229,7 +68,9 @@ struct _lowcore
         __u32   monitor_code;                   /* 0x009c */
         __u8    exc_access_id;                  /* 0x00a0 */
         __u8    per_access_id;                  /* 0x00a1 */
-        __u8    pad_0x00a2[0x00b8-0x00a2];      /* 0x00a2 */
+        __u8    op_access_id;                   /* 0x00a2 */
+        __u8    ar_access_id;                   /* 0x00a3 */
+        __u8    pad_0x00a4[0x00b8-0x00a4];      /* 0x00a4 */
         __u16   subchannel_id;                  /* 0x00b8 */
         __u16   subchannel_nr;                  /* 0x00ba */
         __u32   io_int_parm;                    /* 0x00bc */
@@ -245,8 +86,9 @@ struct _lowcore
         __u32   external_damage_code;           /* 0x00f4 */
         __u32   failing_storage_address;        /* 0x00f8 */
         __u8    pad_0x00fc[0x0100-0x00fc];      /* 0x00fc */
-        __u32   st_status_fixed_logout[4];      /* 0x0100 */
-        __u8    pad_0x0110[0x0120-0x0110];      /* 0x0110 */
+        psw_t   psw_save_area;                  /* 0x0100 */
+        __u32   prefixreg_save_area;            /* 0x0108 */
+        __u8    pad_0x010c[0x0120-0x010c];      /* 0x010c */
 
         /* CPU register save area: defined by architecture */
         __u32   access_regs_save_area[16];      /* 0x0120 */
@@ -310,10 +152,32 @@ struct _lowcore
 
         /* Align to the top 1k of prefix area */
         __u8    pad_0x0e08[0x1000-0x0e08];      /* 0x0e08 */
-#else /* !__s390x__ */
-        /* 0x0000 - 0x01ff: defined by architecture */
-        __u32   ccw1[2];                        /* 0x0000 */
-        __u32   ccw2[4];                        /* 0x0008 */
+} __packed;
+
+#else /* CONFIG_32BIT */
+
+#define LC_ORDER 1
+#define LC_PAGES 2
+
+struct save_area {
+        u64     fp_regs[16];
+        u64     gp_regs[16];
+        u8      psw[16];
+        u8      pad1[8];
+        u32     pref_reg;
+        u32     fp_ctrl_reg;
+        u8      pad2[4];
+        u32     tod_reg;
+        u64     timer;
+        u64     clk_cmp;
+        u8      pad3[8];
+        u32     acc_regs[16];
+        u64     ctrl_regs[16];
+} __packed;
+
+struct _lowcore {
+        __u8    pad_0x0000[0x0014-0x0000];      /* 0x0000 */
+        __u32   ipl_parmblock_ptr;              /* 0x0014 */
         __u8    pad_0x0018[0x0080-0x0018];      /* 0x0018 */
         __u32   ext_params;                     /* 0x0080 */
         __u16   cpu_addr;                       /* 0x0084 */
@@ -344,7 +208,9 @@ struct _lowcore
         __u8    pad_0x00f0[0x00f4-0x00f0];      /* 0x00f0 */
         __u32   external_damage_code;           /* 0x00f4 */
         addr_t  failing_storage_address;        /* 0x00f8 */
-        __u8    pad_0x0100[0x0120-0x0100];      /* 0x0100 */
+        __u8    pad_0x0100[0x0110-0x0100];      /* 0x0100 */
+        __u64   breaking_event_addr;            /* 0x0110 */
+        __u8    pad_0x0118[0x0120-0x0118];      /* 0x0118 */
         psw_t   restart_old_psw;                /* 0x0120 */
         psw_t   external_old_psw;               /* 0x0130 */
         psw_t   svc_old_psw;                    /* 0x0140 */
@@ -425,7 +291,7 @@ struct _lowcore
         /* CPU register save area: defined by architecture */
         __u64   floating_pt_save_area[16];      /* 0x1200 */
         __u64   gpregs_save_area[16];           /* 0x1280 */
-        __u32   st_status_fixed_logout[4];      /* 0x1300 */
+        psw_t   psw_save_area;                  /* 0x1300 */
         __u8    pad_0x1310[0x1318-0x1310];      /* 0x1310 */
         __u32   prefixreg_save_area;            /* 0x1318 */
         __u32   fpt_creg_save_area;             /* 0x131c */
@@ -439,10 +305,12 @@ struct _lowcore
 
         /* align to the top of the prefix area */
         __u8    pad_0x1400[0x2000-0x1400];      /* 0x1400 */
-#endif /* !__s390x__ */
-} __attribute__((packed)); /* End structure*/
+} __packed;
+
+#endif /* CONFIG_32BIT */
 
 #define S390_lowcore (*((struct _lowcore *) 0))
+
 extern struct _lowcore *lowcore_ptr[];
 
 static inline void set_prefix(__u32 address)
@@ -458,6 +326,4 @@ static inline __u32 store_prefix(void)
         return address;
 }
 
-#endif
-
-#endif
+#endif /* _ASM_S390_LOWCORE_H */
diff --git a/arch/s390/include/asm/page.h b/arch/s390/include/asm/page.h
index 5e9daf5d7f22..af650fb47206 100644
--- a/arch/s390/include/asm/page.h
+++ b/arch/s390/include/asm/page.h
@@ -107,9 +107,6 @@ typedef pte_t *pgtable_t;
 #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)
 {
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index e2fa79cf0614..9b5b9189c15e 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -43,7 +43,7 @@ extern void vmem_map_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)
+#define update_mmu_cache(vma, address, ptep)     do { } while (0)
 
 /*
  * ZERO_PAGE is a global shared page that is always zero: used
diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h
index b42715458312..73e259834e10 100644
--- a/arch/s390/include/asm/processor.h
+++ b/arch/s390/include/asm/processor.h
@@ -28,7 +28,7 @@
 
 static inline void get_cpu_id(struct cpuid *ptr)
 {
-        asm volatile("stidp 0(%1)" : "=m" (*ptr) : "a" (ptr));
+        asm volatile("stidp %0" : "=Q" (*ptr));
 }
 
 extern void s390_adjust_jiffies(void);
@@ -184,9 +184,9 @@ static inline void psw_set_key(unsigned int key)
 static inline void __load_psw(psw_t psw)
 {
 #ifndef __s390x__
-        asm volatile("lpsw  0(%0)" : : "a" (&psw), "m" (psw) : "cc");
+        asm volatile("lpsw  %0" : : "Q" (psw) : "cc");
 #else
-        asm volatile("lpswe 0(%0)" : : "a" (&psw), "m" (psw) : "cc");
+        asm volatile("lpswe %0" : : "Q" (psw) : "cc");
 #endif
 }
 
@@ -206,17 +206,17 @@ static inline void __load_psw_mask (unsigned long mask)
         asm volatile(
                 "       basr    %0,0\n"
                 "0:     ahi     %0,1f-0b\n"
-                "       st      %0,4(%1)\n"
-                "       lpsw    0(%1)\n"
+                "       st      %0,%O1+4(%R1)\n"
+                "       lpsw    %1\n"
                 "1:"
-                : "=&d" (addr) : "a" (&psw), "m" (psw) : "memory", "cc");
+                : "=&d" (addr), "=Q" (psw) : "Q" (psw) : "memory", "cc");
 #else /* __s390x__ */
         asm volatile(
                 "       larl    %0,1f\n"
-                "       stg     %0,8(%1)\n"
-                "       lpswe   0(%1)\n"
+                "       stg     %0,%O1+8(%R1)\n"
+                "       lpswe   %1\n"
                 "1:"
-                : "=&d" (addr) : "a" (&psw), "m" (psw) : "memory", "cc");
+                : "=&d" (addr), "=Q" (psw) : "Q" (psw) : "memory", "cc");
 #endif /* __s390x__ */
 }
  
diff --git a/arch/s390/include/asm/ptrace.h b/arch/s390/include/asm/ptrace.h
index 95dcf183a28d..dd2d913afcae 100644
--- a/arch/s390/include/asm/ptrace.h
+++ b/arch/s390/include/asm/ptrace.h
@@ -492,13 +492,24 @@ struct user_regs_struct
 struct task_struct;
 extern void user_enable_single_step(struct task_struct *);
 extern void user_disable_single_step(struct task_struct *);
+extern void show_regs(struct pt_regs * regs);
 
 #define user_mode(regs) (((regs)->psw.mask & PSW_MASK_PSTATE) != 0)
 #define instruction_pointer(regs) ((regs)->psw.addr & PSW_ADDR_INSN)
 #define user_stack_pointer(regs)((regs)->gprs[15])
 #define regs_return_value(regs)((regs)->gprs[2])
 #define profile_pc(regs) instruction_pointer(regs)
-extern void show_regs(struct pt_regs * regs);
+
+int regs_query_register_offset(const char *name);
+const char *regs_query_register_name(unsigned int offset);
+unsigned long regs_get_register(struct pt_regs *regs, unsigned int offset);
+unsigned long regs_get_kernel_stack_nth(struct pt_regs *regs, unsigned int n);
+
+static inline unsigned long kernel_stack_pointer(struct pt_regs *regs)
+{
+        return regs->gprs[15] & PSW_ADDR_INSN;
+}
+
 #endif /* __KERNEL__ */
 #endif /* __ASSEMBLY__ */
 
diff --git a/arch/s390/include/asm/qdio.h b/arch/s390/include/asm/qdio.h
index 79d849f014f0..c666bfe5e984 100644
--- a/arch/s390/include/asm/qdio.h
+++ b/arch/s390/include/asm/qdio.h
@@ -13,7 +13,8 @@
 #include <asm/cio.h>
 #include <asm/ccwdev.h>
 
-#define QDIO_MAX_QUEUES_PER_IRQ         32
+/* only use 4 queues to save some cachelines */
+#define QDIO_MAX_QUEUES_PER_IRQ         4
 #define QDIO_MAX_BUFFERS_PER_Q          128
 #define QDIO_MAX_BUFFERS_MASK           (QDIO_MAX_BUFFERS_PER_Q - 1)
 #define QDIO_MAX_ELEMENTS_PER_BUFFER    16
diff --git a/arch/s390/include/asm/rwsem.h b/arch/s390/include/asm/rwsem.h
index 9d2a17971805..423fdda2322d 100644
--- a/arch/s390/include/asm/rwsem.h
+++ b/arch/s390/include/asm/rwsem.h
@@ -124,21 +124,21 @@ static inline void __down_read(struct rw_semaphore *sem)
 
         asm volatile(
 #ifndef __s390x__
-                "       l       %0,0(%3)\n"
+                "       l       %0,%2\n"
                 "0:     lr      %1,%0\n"
-                "       ahi     %1,%5\n"
-                "       cs      %0,%1,0(%3)\n"
+                "       ahi     %1,%4\n"
+                "       cs      %0,%1,%2\n"
                 "       jl      0b"
 #else /* __s390x__ */
-                "       lg      %0,0(%3)\n"
+                "       lg      %0,%2\n"
                 "0:     lgr     %1,%0\n"
-                "       aghi    %1,%5\n"
-                "       csg     %0,%1,0(%3)\n"
+                "       aghi    %1,%4\n"
+                "       csg     %0,%1,%2\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");
+                : "=&d" (old), "=&d" (new), "=Q" (sem->count)
+                : "Q" (sem->count), "i" (RWSEM_ACTIVE_READ_BIAS)
+                : "cc", "memory");
         if (old < 0)
                 rwsem_down_read_failed(sem);
 }
@@ -152,25 +152,25 @@ static inline int __down_read_trylock(struct rw_semaphore *sem)
 
         asm volatile(
 #ifndef __s390x__
-                "       l       %0,0(%3)\n"
+                "       l       %0,%2\n"
                 "0:     ltr     %1,%0\n"
                 "       jm      1f\n"
-                "       ahi     %1,%5\n"
-                "       cs      %0,%1,0(%3)\n"
+                "       ahi     %1,%4\n"
+                "       cs      %0,%1,%2\n"
                 "       jl      0b\n"
                 "1:"
 #else /* __s390x__ */
-                "       lg      %0,0(%3)\n"
+                "       lg      %0,%2\n"
                 "0:     ltgr    %1,%0\n"
                 "       jm      1f\n"
-                "       aghi    %1,%5\n"
-                "       csg     %0,%1,0(%3)\n"
+                "       aghi    %1,%4\n"
+                "       csg     %0,%1,%2\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");
+                : "=&d" (old), "=&d" (new), "=Q" (sem->count)
+                : "Q" (sem->count), "i" (RWSEM_ACTIVE_READ_BIAS)
+                : "cc", "memory");
         return old >= 0 ? 1 : 0;
 }
 
@@ -184,20 +184,20 @@ static inline void __down_write_nested(struct rw_semaphore *sem, int subclass)
         tmp = RWSEM_ACTIVE_WRITE_BIAS;
         asm volatile(
 #ifndef __s390x__
-                "       l       %0,0(%3)\n"
+                "       l       %0,%2\n"
                 "0:     lr      %1,%0\n"
-                "       a       %1,%5\n"
-                "       cs      %0,%1,0(%3)\n"
+                "       a       %1,%4\n"
+                "       cs      %0,%1,%2\n"
                 "       jl      0b"
 #else /* __s390x__ */
-                "       lg      %0,0(%3)\n"
+                "       lg      %0,%2\n"
                 "0:     lgr     %1,%0\n"
-                "       ag      %1,%5\n"
-                "       csg     %0,%1,0(%3)\n"
+                "       ag      %1,%4\n"
+                "       csg     %0,%1,%2\n"
                 "       jl      0b"
 #endif /* __s390x__ */
-                : "=&d" (old), "=&d" (new), "=m" (sem->count)
-                : "a" (&sem->count), "m" (sem->count), "m" (tmp)
+                : "=&d" (old), "=&d" (new), "=Q" (sem->count)
+                : "Q" (sem->count), "m" (tmp)
                 : "cc", "memory");
         if (old != 0)
                 rwsem_down_write_failed(sem);
@@ -217,22 +217,22 @@ static inline int __down_write_trylock(struct rw_semaphore *sem)
 
         asm volatile(
 #ifndef __s390x__
-                "       l       %0,0(%2)\n"
+                "       l       %0,%1\n"
                 "0:     ltr     %0,%0\n"
                 "       jnz     1f\n"
-                "       cs      %0,%4,0(%2)\n"
+                "       cs      %0,%3,%1\n"
                 "       jl      0b\n"
 #else /* __s390x__ */
-                "       lg      %0,0(%2)\n"
+                "       lg      %0,%1\n"
                 "0:     ltgr    %0,%0\n"
                 "       jnz     1f\n"
-                "       csg     %0,%4,0(%2)\n"
+                "       csg     %0,%3,%1\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");
+                : "=&d" (old), "=Q" (sem->count)
+                : "Q" (sem->count), "d" (RWSEM_ACTIVE_WRITE_BIAS)
+                : "cc", "memory");
         return (old == RWSEM_UNLOCKED_VALUE) ? 1 : 0;
 }
 
@@ -245,21 +245,20 @@ static inline void __up_read(struct rw_semaphore *sem)
 
         asm volatile(
 #ifndef __s390x__
-                "       l       %0,0(%3)\n"
+                "       l       %0,%2\n"
                 "0:     lr      %1,%0\n"
-                "       ahi     %1,%5\n"
-                "       cs      %0,%1,0(%3)\n"
+                "       ahi     %1,%4\n"
+                "       cs      %0,%1,%2\n"
                 "       jl      0b"
 #else /* __s390x__ */
-                "       lg      %0,0(%3)\n"
+                "       lg      %0,%2\n"
                 "0:     lgr     %1,%0\n"
-                "       aghi    %1,%5\n"
-                "       csg     %0,%1,0(%3)\n"
+                "       aghi    %1,%4\n"
+                "       csg     %0,%1,%2\n"
                 "       jl      0b"
 #endif /* __s390x__ */
-                : "=&d" (old), "=&d" (new), "=m" (sem->count)
-                : "a" (&sem->count), "m" (sem->count),
-                  "i" (-RWSEM_ACTIVE_READ_BIAS)
+                : "=&d" (old), "=&d" (new), "=Q" (sem->count)
+                : "Q" (sem->count), "i" (-RWSEM_ACTIVE_READ_BIAS)
                 : "cc", "memory");
         if (new < 0)
                 if ((new & RWSEM_ACTIVE_MASK) == 0)
@@ -276,20 +275,20 @@ static inline void __up_write(struct rw_semaphore *sem)
         tmp = -RWSEM_ACTIVE_WRITE_BIAS;
         asm volatile(
 #ifndef __s390x__
-                "       l       %0,0(%3)\n"
+                "       l       %0,%2\n"
                 "0:     lr      %1,%0\n"
-                "       a       %1,%5\n"
-                "       cs      %0,%1,0(%3)\n"
+                "       a       %1,%4\n"
+                "       cs      %0,%1,%2\n"
                 "       jl      0b"
 #else /* __s390x__ */
-                "       lg      %0,0(%3)\n"
+                "       lg      %0,%2\n"
                 "0:     lgr     %1,%0\n"
-                "       ag      %1,%5\n"
-                "       csg     %0,%1,0(%3)\n"
+                "       ag      %1,%4\n"
+                "       csg     %0,%1,%2\n"
                 "       jl      0b"
 #endif /* __s390x__ */
-                : "=&d" (old), "=&d" (new), "=m" (sem->count)
-                : "a" (&sem->count), "m" (sem->count), "m" (tmp)
+                : "=&d" (old), "=&d" (new), "=Q" (sem->count)
+                : "Q" (sem->count), "m" (tmp)
                 : "cc", "memory");
         if (new < 0)
                 if ((new & RWSEM_ACTIVE_MASK) == 0)
@@ -306,20 +305,20 @@ static inline void __downgrade_write(struct rw_semaphore *sem)
         tmp = -RWSEM_WAITING_BIAS;
         asm volatile(
 #ifndef __s390x__
-                "       l       %0,0(%3)\n"
+                "       l       %0,%2\n"
                 "0:     lr      %1,%0\n"
-                "       a       %1,%5\n"
-                "       cs      %0,%1,0(%3)\n"
+                "       a       %1,%4\n"
+                "       cs      %0,%1,%2\n"
                 "       jl      0b"
 #else /* __s390x__ */
-                "       lg      %0,0(%3)\n"
+                "       lg      %0,%2\n"
                 "0:     lgr     %1,%0\n"
-                "       ag      %1,%5\n"
-                "       csg     %0,%1,0(%3)\n"
+                "       ag      %1,%4\n"
+                "       csg     %0,%1,%2\n"
                 "       jl      0b"
 #endif /* __s390x__ */
-                : "=&d" (old), "=&d" (new), "=m" (sem->count)
-                : "a" (&sem->count), "m" (sem->count), "m" (tmp)
+                : "=&d" (old), "=&d" (new), "=Q" (sem->count)
+                : "Q" (sem->count), "m" (tmp)
                 : "cc", "memory");
         if (new > 1)
                 rwsem_downgrade_wake(sem);
@@ -334,20 +333,20 @@ static inline void rwsem_atomic_add(long delta, struct rw_semaphore *sem)
 
         asm volatile(
 #ifndef __s390x__
-                "       l       %0,0(%3)\n"
+                "       l       %0,%2\n"
                 "0:     lr      %1,%0\n"
-                "       ar      %1,%5\n"
-                "       cs      %0,%1,0(%3)\n"
+                "       ar      %1,%4\n"
+                "       cs      %0,%1,%2\n"
                 "       jl      0b"
 #else /* __s390x__ */
-                "       lg      %0,0(%3)\n"
+                "       lg      %0,%2\n"
                 "0:     lgr     %1,%0\n"
-                "       agr     %1,%5\n"
-                "       csg     %0,%1,0(%3)\n"
+                "       agr     %1,%4\n"
+                "       csg     %0,%1,%2\n"
                 "       jl      0b"
 #endif /* __s390x__ */
-                : "=&d" (old), "=&d" (new), "=m" (sem->count)
-                : "a" (&sem->count), "m" (sem->count), "d" (delta)
+                : "=&d" (old), "=&d" (new), "=Q" (sem->count)
+                : "Q" (sem->count), "d" (delta)
                 : "cc", "memory");
 }
 
@@ -360,20 +359,20 @@ static inline long rwsem_atomic_update(long delta, struct rw_semaphore *sem)
 
         asm volatile(
 #ifndef __s390x__
-                "       l       %0,0(%3)\n"
+                "       l       %0,%2\n"
                 "0:     lr      %1,%0\n"
-                "       ar      %1,%5\n"
-                "       cs      %0,%1,0(%3)\n"
+                "       ar      %1,%4\n"
+                "       cs      %0,%1,%2\n"
                 "       jl      0b"
 #else /* __s390x__ */
-                "       lg      %0,0(%3)\n"
+                "       lg      %0,%2\n"
                 "0:     lgr     %1,%0\n"
-                "       agr     %1,%5\n"
-                "       csg     %0,%1,0(%3)\n"
+                "       agr     %1,%4\n"
+                "       csg     %0,%1,%2\n"
                 "       jl      0b"
 #endif /* __s390x__ */
-                : "=&d" (old), "=&d" (new), "=m" (sem->count)
-                : "a" (&sem->count), "m" (sem->count), "d" (delta)
+                : "=&d" (old), "=&d" (new), "=Q" (sem->count)
+                : "Q" (sem->count), "d" (delta)
                 : "cc", "memory");
         return new;
 }
diff --git a/arch/s390/include/asm/setup.h b/arch/s390/include/asm/setup.h
index 52a779c337e8..9ab6bd3a65d1 100644
--- a/arch/s390/include/asm/setup.h
+++ b/arch/s390/include/asm/setup.h
@@ -14,14 +14,14 @@
 
 #ifdef __KERNEL__
 
-#include <asm/lowcore.h>
-#include <asm/types.h>
-
 #define PARMAREA                0x10400
 #define MEMORY_CHUNKS           256
 
 #ifndef __ASSEMBLY__
 
+#include <asm/lowcore.h>
+#include <asm/types.h>
+
 #ifndef __s390x__
 #define IPL_DEVICE        (*(unsigned long *)  (0x10404))
 #define INITRD_START      (*(unsigned long *)  (0x1040C))
@@ -71,9 +71,12 @@ extern unsigned int user_mode;
 #define MACHINE_FLAG_KVM        (1UL << 9)
 #define MACHINE_FLAG_HPAGE      (1UL << 10)
 #define MACHINE_FLAG_PFMF       (1UL << 11)
+#define MACHINE_FLAG_LPAR       (1UL << 12)
 
 #define MACHINE_IS_VM           (S390_lowcore.machine_flags & MACHINE_FLAG_VM)
 #define MACHINE_IS_KVM          (S390_lowcore.machine_flags & MACHINE_FLAG_KVM)
+#define MACHINE_IS_LPAR         (S390_lowcore.machine_flags & MACHINE_FLAG_LPAR)
+
 #define MACHINE_HAS_DIAG9C      (S390_lowcore.machine_flags & MACHINE_FLAG_DIAG9C)
 
 #ifndef __s390x__
diff --git a/arch/s390/include/asm/sigp.h b/arch/s390/include/asm/sigp.h
index f72d611f7e13..e3bffd4e2d66 100644
--- a/arch/s390/include/asm/sigp.h
+++ b/arch/s390/include/asm/sigp.h
@@ -1,24 +1,19 @@
 /*
- *  include/asm-s390/sigp.h
+ *  Routines and structures for signalling other processors.
  *
- *  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.
+ *    Copyright IBM Corp. 1999,2010
+ *    Author(s): Denis Joseph Barrow,
+ *               Martin Schwidefsky <schwidefsky@de.ibm.com>,
+ *               Heiko Carstens <heiko.carstens@de.ibm.com>,
  */
 
-#ifndef __SIGP__
-#define __SIGP__
+#ifndef __ASM_SIGP_H
+#define __ASM_SIGP_H
 
 #include <asm/system.h>
 
-/* get real cpu address from logical cpu number */
-extern int __cpu_logical_map[];
+/* Get real cpu address from logical cpu number. */
+extern unsigned short __cpu_logical_map[];
 
 static inline int cpu_logical_map(int cpu)
 {
@@ -29,107 +24,108 @@ static inline int cpu_logical_map(int cpu)
 #endif
 }
 
-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;
-
+enum {
+        sigp_sense = 1,
+        sigp_external_call = 2,
+        sigp_emergency_signal = 3,
+        sigp_start = 4,
+        sigp_stop = 5,
+        sigp_restart = 6,
+        sigp_stop_and_store_status = 9,
+        sigp_initial_cpu_reset = 11,
+        sigp_cpu_reset = 12,
+        sigp_set_prefix = 13,
+        sigp_store_status_at_address = 14,
+        sigp_store_extended_status_at_address = 15,
+        sigp_set_architecture = 18,
+        sigp_conditional_emergency_signal = 19,
+        sigp_sense_running = 21,
+};
+
+enum {
+        sigp_order_code_accepted = 0,
+        sigp_status_stored = 1,
+        sigp_busy = 2,
+        sigp_not_operational = 3,
+};
 
 /*
- * Definitions for the external call
+ * Definitions for external call.
  */
-
-/* 'Bit' signals, asynchronous */
-typedef enum
-{
-        ec_schedule=0,
+enum {
+        ec_schedule = 0,
         ec_call_function,
         ec_call_function_single,
-        ec_bit_last
-} ec_bit_sig;
+};
 
 /*
- * Signal processor
+ * Signal processor.
  */
-static inline sigp_ccode
-signal_processor(__u16 cpu_addr, sigp_order_code order_code)
+static inline int raw_sigp(u16 cpu, int order)
 {
         register unsigned long reg1 asm ("1") = 0;
-        sigp_ccode ccode;
+        int ccode;
 
         asm volatile(
                 "       sigp    %1,%2,0(%3)\n"
                 "       ipm     %0\n"
                 "       srl     %0,28\n"
                 :       "=d"    (ccode)
-                : "d" (reg1), "d" (cpu_logical_map(cpu_addr)),
-                  "a" (order_code) : "cc" , "memory");
+                : "d" (reg1), "d" (cpu),
+                  "a" (order) : "cc" , "memory");
         return ccode;
 }
 
 /*
- * Signal processor with parameter
+ * Signal processor with parameter.
  */
-static inline sigp_ccode
-signal_processor_p(__u32 parameter, __u16 cpu_addr, sigp_order_code order_code)
+static inline int raw_sigp_p(u32 parameter, u16 cpu, int order)
 {
         register unsigned int reg1 asm ("1") = parameter;
-        sigp_ccode ccode;
+        int ccode;
 
         asm volatile(
                 "       sigp    %1,%2,0(%3)\n"
                 "       ipm     %0\n"
                 "       srl     %0,28\n"
                 : "=d" (ccode)
-                : "d" (reg1), "d" (cpu_logical_map(cpu_addr)),
-                  "a" (order_code) : "cc" , "memory");
+                : "d" (reg1), "d" (cpu),
+                  "a" (order) : "cc" , "memory");
         return ccode;
 }
 
 /*
- * Signal processor with parameter and return status
+ * Signal processor with parameter and return status.
  */
-static inline sigp_ccode
-signal_processor_ps(__u32 *statusptr, __u32 parameter, __u16 cpu_addr,
-                    sigp_order_code order_code)
+static inline int raw_sigp_ps(u32 *status, u32 parm, u16 cpu, int order)
 {
-        register unsigned int reg1 asm ("1") = parameter;
-        sigp_ccode ccode;
+        register unsigned int reg1 asm ("1") = parm;
+        int ccode;
 
         asm volatile(
                 "       sigp    %1,%2,0(%3)\n"
                 "       ipm     %0\n"
                 "       srl     %0,28\n"
                 : "=d" (ccode), "+d" (reg1)
-                : "d" (cpu_logical_map(cpu_addr)), "a" (order_code)
+                : "d" (cpu), "a" (order)
                 : "cc" , "memory");
-        *statusptr = reg1;
+        *status = reg1;
         return ccode;
 }
 
-#endif /* __SIGP__ */
+static inline int sigp(int cpu, int order)
+{
+        return raw_sigp(cpu_logical_map(cpu), order);
+}
+
+static inline int sigp_p(u32 parameter, int cpu, int order)
+{
+        return raw_sigp_p(parameter, cpu_logical_map(cpu), order);
+}
+
+static inline int sigp_ps(u32 *status, u32 parm, int cpu, int order)
+{
+        return raw_sigp_ps(status, parm, cpu_logical_map(cpu), order);
+}
+
+#endif /* __ASM_SIGP_H */
diff --git a/arch/s390/include/asm/smp.h b/arch/s390/include/asm/smp.h
index 2ab1141eeb50..edc03cb9cd79 100644
--- a/arch/s390/include/asm/smp.h
+++ b/arch/s390/include/asm/smp.h
@@ -29,7 +29,43 @@ extern int smp_cpu_polarization[];
 extern void arch_send_call_function_single_ipi(int cpu);
 extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
 
-extern union save_area *zfcpdump_save_areas[NR_CPUS + 1];
+extern struct save_area *zfcpdump_save_areas[NR_CPUS + 1];
+
+extern void smp_switch_to_ipl_cpu(void (*func)(void *), void *);
+extern void smp_switch_to_cpu(void (*)(void *), void *, unsigned long sp,
+                              int from, int to);
+extern void smp_restart_cpu(void);
+
+/*
+ * returns 1 if (virtual) cpu is scheduled
+ * returns 0 otherwise
+ */
+static inline int smp_vcpu_scheduled(int cpu)
+{
+        u32 status;
+
+        switch (sigp_ps(&status, 0, cpu, sigp_sense_running)) {
+        case sigp_status_stored:
+                /* Check for running status */
+                if (status & 0x400)
+                        return 0;
+                break;
+        case sigp_not_operational:
+                return 0;
+        default:
+                break;
+        }
+        return 1;
+}
+
+#else /* CONFIG_SMP */
+
+static inline void smp_switch_to_ipl_cpu(void (*func)(void *), void *data)
+{
+        func(data);
+}
+
+#define smp_vcpu_scheduled      (1)
 
 #endif /* CONFIG_SMP */
 
diff --git a/arch/s390/include/asm/spinlock.h b/arch/s390/include/asm/spinlock.h
index a587907d77f3..56612fc8186e 100644
--- a/arch/s390/include/asm/spinlock.h
+++ b/arch/s390/include/asm/spinlock.h
@@ -13,8 +13,6 @@
 
 #include <linux/smp.h>
 
-#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
-
 static inline int
 _raw_compare_and_swap(volatile unsigned int *lock,
                       unsigned int old, unsigned int new)
@@ -27,22 +25,6 @@ _raw_compare_and_swap(volatile unsigned int *lock,
         return old;
 }
 
-#else /* __GNUC__ */
-
-static inline int
-_raw_compare_and_swap(volatile unsigned int *lock,
-                      unsigned int old, unsigned int new)
-{
-        asm volatile(
-                "       cs      %0,%3,0(%4)"
-                : "=d" (old), "=m" (*lock)
-                : "0" (old), "d" (new), "a" (lock), "m" (*lock)
-                : "cc", "memory" );
-        return old;
-}
-
-#endif /* __GNUC__ */
-
 /*
  * Simple spin lock operations.  There are two variants, one clears IRQ's
  * on the local processor, one does not.
diff --git a/arch/s390/include/asm/swab.h b/arch/s390/include/asm/swab.h
index eb18dc1f327b..6bdee21c077e 100644
--- a/arch/s390/include/asm/swab.h
+++ b/arch/s390/include/asm/swab.h
@@ -47,11 +47,11 @@ static inline __u32 __arch_swab32p(const __u32 *x)
         
         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");
+                "       icm     %0,8,%O1+3(%R1)\n"
+                "       icm     %0,4,%O1+2(%R1)\n"
+                "       icm     %0,2,%O1+1(%R1)\n"
+                "       ic      %0,%1"
+                : "=&d" (result) : "Q" (*x) : "cc");
 #else /* __s390x__ */
                 "       lrv     %0,%1"
                 : "=d" (result) : "m" (*x));
@@ -77,9 +77,9 @@ static inline __u16 __arch_swab16p(const __u16 *x)
         
         asm volatile(
 #ifndef __s390x__
-                "       icm     %0,2,1(%1)\n"
-                "       ic      %0,0(%1)\n"
-                : "=&d" (result) : "a" (x), "m" (*x) : "cc");
+                "       icm     %0,2,%O+1(%R1)\n"
+                "       ic      %0,%1\n"
+                : "=&d" (result) : "Q" (*x) : "cc");
 #else /* __s390x__ */
                 "       lrvh    %0,%1"
                 : "=d" (result) : "m" (*x));
diff --git a/arch/s390/include/asm/syscall.h b/arch/s390/include/asm/syscall.h
index e0a73d3eb837..8429686951f9 100644
--- a/arch/s390/include/asm/syscall.h
+++ b/arch/s390/include/asm/syscall.h
@@ -15,6 +15,13 @@
 #include <linux/sched.h>
 #include <asm/ptrace.h>
 
+/*
+ * The syscall table always contains 32 bit pointers since we know that the
+ * address of the function to be called is (way) below 4GB.  So the "int"
+ * type here is what we want [need] for both 32 bit and 64 bit systems.
+ */
+extern const unsigned int sys_call_table[];
+
 static inline long syscall_get_nr(struct task_struct *task,
                                   struct pt_regs *regs)
 {
diff --git a/arch/s390/include/asm/sysinfo.h b/arch/s390/include/asm/sysinfo.h
index 9d70057d828c..22bdb2a0ee5f 100644
--- a/arch/s390/include/asm/sysinfo.h
+++ b/arch/s390/include/asm/sysinfo.h
@@ -87,7 +87,8 @@ struct sysinfo_2_2_2 {
 
 struct sysinfo_3_2_2 {
         char reserved_0[31];
-        unsigned char count;
+        unsigned char :4;
+        unsigned char count:4;
         struct {
                 char reserved_0[4];
                 unsigned short cpus_total;
diff --git a/arch/s390/include/asm/system.h b/arch/s390/include/asm/system.h
index 379661d2f81a..67ee6c3c6bb3 100644
--- a/arch/s390/include/asm/system.h
+++ b/arch/s390/include/asm/system.h
@@ -24,65 +24,65 @@ extern struct task_struct *__switch_to(void *, void *);
 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");
+                "       std     0,%O0+8(%R0)\n"
+                "       std     2,%O0+24(%R0)\n"
+                "       std     4,%O0+40(%R0)\n"
+                "       std     6,%O0+56(%R0)"
+                : "=Q" (*fpregs) : "Q" (*fpregs));
         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");
+                "       stfpc   %0\n"
+                "       std     1,%O0+16(%R0)\n"
+                "       std     3,%O0+32(%R0)\n"
+                "       std     5,%O0+48(%R0)\n"
+                "       std     7,%O0+64(%R0)\n"
+                "       std     8,%O0+72(%R0)\n"
+                "       std     9,%O0+80(%R0)\n"
+                "       std     10,%O0+88(%R0)\n"
+                "       std     11,%O0+96(%R0)\n"
+                "       std     12,%O0+104(%R0)\n"
+                "       std     13,%O0+112(%R0)\n"
+                "       std     14,%O0+120(%R0)\n"
+                "       std     15,%O0+128(%R0)\n"
+                : "=Q" (*fpregs) : "Q" (*fpregs));
 }
 
 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));
+                "       ld      0,%O0+8(%R0)\n"
+                "       ld      2,%O0+24(%R0)\n"
+                "       ld      4,%O0+40(%R0)\n"
+                "       ld      6,%O0+56(%R0)"
+                : : "Q" (*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));
+                "       lfpc    %0\n"
+                "       ld      1,%O0+16(%R0)\n"
+                "       ld      3,%O0+32(%R0)\n"
+                "       ld      5,%O0+48(%R0)\n"
+                "       ld      7,%O0+64(%R0)\n"
+                "       ld      8,%O0+72(%R0)\n"
+                "       ld      9,%O0+80(%R0)\n"
+                "       ld      10,%O0+88(%R0)\n"
+                "       ld      11,%O0+96(%R0)\n"
+                "       ld      12,%O0+104(%R0)\n"
+                "       ld      13,%O0+112(%R0)\n"
+                "       ld      14,%O0+120(%R0)\n"
+                "       ld      15,%O0+128(%R0)\n"
+                : : "Q" (*fpregs));
 }
 
 static inline void save_access_regs(unsigned int *acrs)
 {
-        asm volatile("stam 0,15,0(%0)" : : "a" (acrs) : "memory");
+        asm volatile("stam 0,15,%0" : "=Q" (*acrs));
 }
 
 static inline void restore_access_regs(unsigned int *acrs)
 {
-        asm volatile("lam 0,15,0(%0)" : : "a" (acrs));
+        asm volatile("lam 0,15,%0" : : "Q" (*acrs));
 }
 
 #define switch_to(prev,next,last) do {                                       \
@@ -139,48 +139,48 @@ static inline unsigned long __xchg(unsigned long x, void * ptr, int size)
                 shift = (3 ^ (addr & 3)) << 3;
                 addr ^= addr & 3;
                 asm volatile(
-                        "       l       %0,0(%4)\n"
+                        "       l       %0,%4\n"
                         "0:     lr      0,%0\n"
                         "       nr      0,%3\n"
                         "       or      0,%2\n"
-                        "       cs      %0,0,0(%4)\n"
+                        "       cs      %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");
+                        : "=&d" (old), "=Q" (*(int *) addr)
+                        : "d" (x << shift), "d" (~(255 << shift)),
+                          "Q" (*(int *) addr) : "memory", "cc", "0");
                 return old >> shift;
         case 2:
                 addr = (unsigned long) ptr;
                 shift = (2 ^ (addr & 2)) << 3;
                 addr ^= addr & 2;
                 asm volatile(
-                        "       l       %0,0(%4)\n"
+                        "       l       %0,%4\n"
                         "0:     lr      0,%0\n"
                         "       nr      0,%3\n"
                         "       or      0,%2\n"
-                        "       cs      %0,0,0(%4)\n"
+                        "       cs      %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");
+                        : "=&d" (old), "=Q" (*(int *) addr)
+                        : "d" (x << shift), "d" (~(65535 << shift)),
+                          "Q" (*(int *) addr) : "memory", "cc", "0");
                 return old >> shift;
         case 4:
                 asm volatile(
-                        "       l       %0,0(%3)\n"
-                        "0:     cs      %0,%2,0(%3)\n"
+                        "       l       %0,%3\n"
+                        "0:     cs      %0,%2,%3\n"
                         "       jl      0b\n"
-                        : "=&d" (old), "=m" (*(int *) ptr)
-                        : "d" (x), "a" (ptr), "m" (*(int *) ptr)
+                        : "=&d" (old), "=Q" (*(int *) ptr)
+                        : "d" (x), "Q" (*(int *) ptr)
                         : "memory", "cc");
                 return old;
 #ifdef __s390x__
         case 8:
                 asm volatile(
-                        "       lg      %0,0(%3)\n"
-                        "0:     csg     %0,%2,0(%3)\n"
+                        "       lg      %0,%3\n"
+                        "0:     csg     %0,%2,%3\n"
                         "       jl      0b\n"
                         : "=&d" (old), "=m" (*(long *) ptr)
-                        : "d" (x), "a" (ptr), "m" (*(long *) ptr)
+                        : "d" (x), "Q" (*(long *) ptr)
                         : "memory", "cc");
                 return old;
 #endif /* __s390x__ */
@@ -215,20 +215,20 @@ __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size)
                 shift = (3 ^ (addr & 3)) << 3;
                 addr ^= addr & 3;
                 asm volatile(
-                        "       l       %0,0(%4)\n"
+                        "       l       %0,%2\n"
                         "0:     nr      %0,%5\n"
                         "       lr      %1,%0\n"
                         "       or      %0,%2\n"
                         "       or      %1,%3\n"
-                        "       cs      %0,%1,0(%4)\n"
+                        "       cs      %0,%1,%2\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))
+                        : "=&d" (prev), "=&d" (tmp), "=Q" (*(int *) ptr)
+                        : "d" (old << shift), "d" (new << shift),
+                          "d" (~(255 << shift)), "Q" (*(int *) ptr)
                         : "memory", "cc");
                 return prev >> shift;
         case 2:
@@ -236,33 +236,35 @@ __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size)
                 shift = (2 ^ (addr & 2)) << 3;
                 addr ^= addr & 2;
                 asm volatile(
-                        "       l       %0,0(%4)\n"
+                        "       l       %0,%2\n"
                         "0:     nr      %0,%5\n"
                         "       lr      %1,%0\n"
                         "       or      %0,%2\n"
                         "       or      %1,%3\n"
-                        "       cs      %0,%1,0(%4)\n"
+                        "       cs      %0,%1,%2\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))
+                        : "=&d" (prev), "=&d" (tmp), "=Q" (*(int *) ptr)
+                        : "d" (old << shift), "d" (new << shift),
+                          "d" (~(65535 << shift)), "Q" (*(int *) ptr)
                         : "memory", "cc");
                 return prev >> shift;
         case 4:
                 asm volatile(
-                        "       cs      %0,%2,0(%3)\n"
-                        : "=&d" (prev) : "0" (old), "d" (new), "a" (ptr)
+                        "       cs      %0,%3,%1\n"
+                        : "=&d" (prev), "=Q" (*(int *) ptr)
+                        : "0" (old), "d" (new), "Q" (*(int *) 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)
+                        "       csg     %0,%3,%1\n"
+                        : "=&d" (prev), "=Q" (*(long *) ptr)
+                        : "0" (old), "d" (new), "Q" (*(long *) ptr)
                         : "memory", "cc");
                 return prev;
 #endif /* __s390x__ */
@@ -302,17 +304,17 @@ __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size)
 #define __ctl_load(array, low, high) ({                         \
         typedef struct { char _[sizeof(array)]; } addrtype;     \
         asm volatile(                                           \
-                "       lctlg   %1,%2,0(%0)\n"                  \
-                : : "a" (&array), "i" (low), "i" (high),        \
-                    "m" (*(addrtype *)(&array)));               \
+                "       lctlg   %1,%2,%0\n"                     \
+                : : "Q" (*(addrtype *)(&array)),                \
+                    "i" (low), "i" (high));                     \
         })
 
 #define __ctl_store(array, low, high) ({                        \
         typedef struct { char _[sizeof(array)]; } addrtype;     \
         asm volatile(                                           \
-                "       stctg   %2,%3,0(%1)\n"                  \
-                : "=m" (*(addrtype *)(&array))                  \
-                : "a" (&array), "i" (low), "i" (high));         \
+                "       stctg   %1,%2,%0\n"                     \
+                : "=Q" (*(addrtype *)(&array))                  \
+                : "i" (low), "i" (high));                       \
         })
 
 #else /* __s390x__ */
@@ -320,17 +322,17 @@ __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size)
 #define __ctl_load(array, low, high) ({                         \
         typedef struct { char _[sizeof(array)]; } addrtype;     \
         asm volatile(                                           \
-                "       lctl    %1,%2,0(%0)\n"                  \
-                : : "a" (&array), "i" (low), "i" (high),        \
-                    "m" (*(addrtype *)(&array)));               \
+                "       lctl    %1,%2,%0\n"                     \
+                : : "Q" (*(addrtype *)(&array)),                \
+                    "i" (low), "i" (high));                     \
 })
 
 #define __ctl_store(array, low, high) ({                        \
         typedef struct { char _[sizeof(array)]; } addrtype;     \
         asm volatile(                                           \
-                "       stctl   %2,%3,0(%1)\n"                  \
-                : "=m" (*(addrtype *)(&array))                  \
-                : "a" (&array), "i" (low), "i" (high));         \
+                "       stctl   %1,%2,%0\n"                     \
+                : "=Q" (*(addrtype *)(&array))                  \
+                : "i" (low), "i" (high));                       \
         })
 
 #endif /* __s390x__ */
diff --git a/arch/s390/include/asm/thread_info.h b/arch/s390/include/asm/thread_info.h
index 66069e736842..34f0873d6525 100644
--- a/arch/s390/include/asm/thread_info.h
+++ b/arch/s390/include/asm/thread_info.h
@@ -73,7 +73,7 @@ struct thread_info {
 /* 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);
+        return (struct thread_info *)(S390_lowcore.kernel_stack - THREAD_SIZE);
 }
 
 #define THREAD_SIZE_ORDER THREAD_ORDER
diff --git a/arch/s390/include/asm/timex.h b/arch/s390/include/asm/timex.h
index 68d9fea34b4b..f174bdaa6b59 100644
--- a/arch/s390/include/asm/timex.h
+++ b/arch/s390/include/asm/timex.h
@@ -20,10 +20,10 @@ static inline int set_clock(__u64 time)
         int cc;
 
         asm volatile(
-                "   sck   0(%2)\n"
+                "   sck   %1\n"
                 "   ipm   %0\n"
                 "   srl   %0,28\n"
-                : "=d" (cc) : "m" (time), "a" (&time) : "cc");
+                : "=d" (cc) : "Q" (time) : "cc");
         return cc;
 }
 
@@ -32,21 +32,21 @@ static inline int store_clock(__u64 *time)
         int cc;
 
         asm volatile(
-                "   stck  0(%2)\n"
+                "   stck  %1\n"
                 "   ipm   %0\n"
                 "   srl   %0,28\n"
-                : "=d" (cc), "=m" (*time) : "a" (time) : "cc");
+                : "=d" (cc), "=Q" (*time) : : "cc");
         return cc;
 }
 
 static inline void set_clock_comparator(__u64 time)
 {
-        asm volatile("sckc 0(%1)" : : "m" (time), "a" (&time));
+        asm volatile("sckc %0" : : "Q" (time));
 }
 
 static inline void store_clock_comparator(__u64 *time)
 {
-        asm volatile("stckc 0(%1)" : "=m" (*time) : "a" (time));
+        asm volatile("stckc %0" : "=Q" (*time));
 }
 
 #define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
@@ -57,11 +57,7 @@ static inline unsigned long long get_clock (void)
 {
         unsigned long long clk;
 
-#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
         asm volatile("stck %0" : "=Q" (clk) : : "cc");
-#else /* __GNUC__ */
-        asm volatile("stck 0(%1)" : "=m" (clk) : "a" (&clk) : "cc");
-#endif /* __GNUC__ */
         return clk;
 }
 
@@ -69,13 +65,7 @@ static inline unsigned long long get_clock_xt(void)
 {
         unsigned char clk[16];
 
-#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
         asm volatile("stcke %0" : "=Q" (clk) : : "cc");
-#else /* __GNUC__ */
-        asm volatile("stcke 0(%1)" : "=m" (clk)
-                                   : "a" (clk) : "cc");
-#endif /* __GNUC__ */
-
         return *((unsigned long long *)&clk[1]);
 }
 
diff --git a/arch/s390/include/asm/uaccess.h b/arch/s390/include/asm/uaccess.h
index cbf0a8745bf4..d6b1ed0ec52b 100644
--- a/arch/s390/include/asm/uaccess.h
+++ b/arch/s390/include/asm/uaccess.h
@@ -265,6 +265,12 @@ __copy_from_user(void *to, const void __user *from, unsigned long n)
                 return uaccess.copy_from_user(n, from, to);
 }
 
+extern void copy_from_user_overflow(void)
+#ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
+__compiletime_warning("copy_from_user() buffer size is not provably correct")
+#endif
+;
+
 /**
  * copy_from_user: - Copy a block of data from user space.
  * @to:   Destination address, in kernel space.
@@ -284,7 +290,13 @@ __copy_from_user(void *to, const void __user *from, unsigned long n)
 static inline unsigned long __must_check
 copy_from_user(void *to, const void __user *from, unsigned long n)
 {
+        unsigned int sz = __compiletime_object_size(to);
+
         might_fault();
+        if (unlikely(sz != -1 && sz < n)) {
+                copy_from_user_overflow();
+                return n;
+        }
         if (access_ok(VERIFY_READ, from, n))
                 n = __copy_from_user(to, from, n);
         else
diff --git a/arch/s390/include/asm/vdso.h b/arch/s390/include/asm/vdso.h
index 7bdd7c8ebc91..4a76d9480cce 100644
--- a/arch/s390/include/asm/vdso.h
+++ b/arch/s390/include/asm/vdso.h
@@ -7,7 +7,7 @@
 #define VDSO32_LBASE    0
 #define VDSO64_LBASE    0
 
-#define VDSO_VERSION_STRING     LINUX_2.6.26
+#define VDSO_VERSION_STRING     LINUX_2.6.29
 
 #ifndef __ASSEMBLY__
 
diff --git a/arch/s390/kernel/Makefile b/arch/s390/kernel/Makefile
index 683f6381cc59..64230bc392fa 100644
--- a/arch/s390/kernel/Makefile
+++ b/arch/s390/kernel/Makefile
@@ -29,9 +29,12 @@ obj-y	+= $(if $(CONFIG_64BIT),entry64.o,entry.o)
 obj-y   += $(if $(CONFIG_64BIT),reipl64.o,reipl.o)
 
 extra-y                         += head.o init_task.o vmlinux.lds
+extra-y                         += $(if $(CONFIG_64BIT),head64.o,head31.o)
 
 obj-$(CONFIG_MODULES)           += s390_ksyms.o module.o
 obj-$(CONFIG_SMP)               += smp.o topology.o
+obj-$(CONFIG_SMP)               += $(if $(CONFIG_64BIT),switch_cpu64.o, \
+                                                        switch_cpu.o)
 obj-$(CONFIG_HIBERNATION)       += suspend.o swsusp_asm64.o
 obj-$(CONFIG_AUDIT)             += audit.o
 compat-obj-$(CONFIG_AUDIT)      += compat_audit.o
diff --git a/arch/s390/kernel/asm-offsets.c b/arch/s390/kernel/asm-offsets.c
index 63e46433e81d..08db736dded0 100644
--- a/arch/s390/kernel/asm-offsets.c
+++ b/arch/s390/kernel/asm-offsets.c
@@ -4,18 +4,27 @@
  * and format the required data.
  */
 
-#include <linux/sched.h>
+#define ASM_OFFSETS_C
+
 #include <linux/kbuild.h>
+#include <linux/sched.h>
 #include <asm/vdso.h>
 #include <asm/sigp.h>
 
+/*
+ * Make sure that the compiler is new enough. We want a compiler that
+ * is known to work with the "Q" assembler constraint.
+ */
+#if __GNUC__ < 3 || (__GNUC__ == 3 && __GNUC_MINOR__ < 3)
+#error Your compiler is too old; please use version 3.3.3 or newer
+#endif
+
 int main(void)
 {
         DEFINE(__THREAD_info, offsetof(struct task_struct, stack));
         DEFINE(__THREAD_ksp, offsetof(struct task_struct, thread.ksp));
         DEFINE(__THREAD_per, offsetof(struct task_struct, thread.per_info));
-        DEFINE(__THREAD_mm_segment,
-               offsetof(struct task_struct, thread.mm_segment));
+        DEFINE(__THREAD_mm_segment, offsetof(struct task_struct, thread.mm_segment));
         BLANK();
         DEFINE(__TASK_pid, offsetof(struct task_struct, pid));
         BLANK();
@@ -52,18 +61,94 @@ int main(void)
         DEFINE(__VDSO_WTOM_NSEC, offsetof(struct vdso_data, wtom_clock_nsec));
         DEFINE(__VDSO_TIMEZONE, offsetof(struct vdso_data, tz_minuteswest));
         DEFINE(__VDSO_ECTG_OK, offsetof(struct vdso_data, ectg_available));
-        DEFINE(__VDSO_ECTG_BASE,
-               offsetof(struct vdso_per_cpu_data, ectg_timer_base));
-        DEFINE(__VDSO_ECTG_USER,
-               offsetof(struct vdso_per_cpu_data, ectg_user_time));
+        DEFINE(__VDSO_ECTG_BASE, offsetof(struct vdso_per_cpu_data, ectg_timer_base));
+        DEFINE(__VDSO_ECTG_USER, offsetof(struct vdso_per_cpu_data, ectg_user_time));
         /* constants used by the vdso */
         DEFINE(CLOCK_REALTIME, CLOCK_REALTIME);
         DEFINE(CLOCK_MONOTONIC, CLOCK_MONOTONIC);
         DEFINE(CLOCK_REALTIME_RES, MONOTONIC_RES_NSEC);
+        BLANK();
         /* constants for SIGP */
         DEFINE(__SIGP_STOP, sigp_stop);
         DEFINE(__SIGP_RESTART, sigp_restart);
         DEFINE(__SIGP_SENSE, sigp_sense);
         DEFINE(__SIGP_INITIAL_CPU_RESET, sigp_initial_cpu_reset);
+        BLANK();
+        /* lowcore offsets */
+        DEFINE(__LC_EXT_PARAMS, offsetof(struct _lowcore, ext_params));
+        DEFINE(__LC_CPU_ADDRESS, offsetof(struct _lowcore, cpu_addr));
+        DEFINE(__LC_EXT_INT_CODE, offsetof(struct _lowcore, ext_int_code));
+        DEFINE(__LC_SVC_ILC, offsetof(struct _lowcore, svc_ilc));
+        DEFINE(__LC_SVC_INT_CODE, offsetof(struct _lowcore, svc_code));
+        DEFINE(__LC_PGM_ILC, offsetof(struct _lowcore, pgm_ilc));
+        DEFINE(__LC_PGM_INT_CODE, offsetof(struct _lowcore, pgm_code));
+        DEFINE(__LC_PER_ATMID, offsetof(struct _lowcore, per_perc_atmid));
+        DEFINE(__LC_PER_ADDRESS, offsetof(struct _lowcore, per_address));
+        DEFINE(__LC_PER_ACCESS_ID, offsetof(struct _lowcore, per_access_id));
+        DEFINE(__LC_AR_MODE_ID, offsetof(struct _lowcore, ar_access_id));
+        DEFINE(__LC_SUBCHANNEL_ID, offsetof(struct _lowcore, subchannel_id));
+        DEFINE(__LC_SUBCHANNEL_NR, offsetof(struct _lowcore, subchannel_nr));
+        DEFINE(__LC_IO_INT_PARM, offsetof(struct _lowcore, io_int_parm));
+        DEFINE(__LC_IO_INT_WORD, offsetof(struct _lowcore, io_int_word));
+        DEFINE(__LC_STFL_FAC_LIST, offsetof(struct _lowcore, stfl_fac_list));
+        DEFINE(__LC_MCCK_CODE, offsetof(struct _lowcore, mcck_interruption_code));
+        DEFINE(__LC_DUMP_REIPL, offsetof(struct _lowcore, ipib));
+        BLANK();
+        DEFINE(__LC_RST_NEW_PSW, offsetof(struct _lowcore, restart_psw));
+        DEFINE(__LC_RST_OLD_PSW, offsetof(struct _lowcore, restart_old_psw));
+        DEFINE(__LC_EXT_OLD_PSW, offsetof(struct _lowcore, external_old_psw));
+        DEFINE(__LC_SVC_OLD_PSW, offsetof(struct _lowcore, svc_old_psw));
+        DEFINE(__LC_PGM_OLD_PSW, offsetof(struct _lowcore, program_old_psw));
+        DEFINE(__LC_MCK_OLD_PSW, offsetof(struct _lowcore, mcck_old_psw));
+        DEFINE(__LC_IO_OLD_PSW, offsetof(struct _lowcore, io_old_psw));
+        DEFINE(__LC_EXT_NEW_PSW, offsetof(struct _lowcore, external_new_psw));
+        DEFINE(__LC_SVC_NEW_PSW, offsetof(struct _lowcore, svc_new_psw));
+        DEFINE(__LC_PGM_NEW_PSW, offsetof(struct _lowcore, program_new_psw));
+        DEFINE(__LC_MCK_NEW_PSW, offsetof(struct _lowcore, mcck_new_psw));
+        DEFINE(__LC_IO_NEW_PSW, offsetof(struct _lowcore, io_new_psw));
+        DEFINE(__LC_SAVE_AREA, offsetof(struct _lowcore, save_area));
+        DEFINE(__LC_RETURN_PSW, offsetof(struct _lowcore, return_psw));
+        DEFINE(__LC_RETURN_MCCK_PSW, offsetof(struct _lowcore, return_mcck_psw));
+        DEFINE(__LC_SYNC_ENTER_TIMER, offsetof(struct _lowcore, sync_enter_timer));
+        DEFINE(__LC_ASYNC_ENTER_TIMER, offsetof(struct _lowcore, async_enter_timer));
+        DEFINE(__LC_EXIT_TIMER, offsetof(struct _lowcore, exit_timer));
+        DEFINE(__LC_USER_TIMER, offsetof(struct _lowcore, user_timer));
+        DEFINE(__LC_SYSTEM_TIMER, offsetof(struct _lowcore, system_timer));
+        DEFINE(__LC_STEAL_TIMER, offsetof(struct _lowcore, steal_timer));
+        DEFINE(__LC_LAST_UPDATE_TIMER, offsetof(struct _lowcore, last_update_timer));
+        DEFINE(__LC_LAST_UPDATE_CLOCK, offsetof(struct _lowcore, last_update_clock));
+        DEFINE(__LC_CURRENT, offsetof(struct _lowcore, current_task));
+        DEFINE(__LC_THREAD_INFO, offsetof(struct _lowcore, thread_info));
+        DEFINE(__LC_KERNEL_STACK, offsetof(struct _lowcore, kernel_stack));
+        DEFINE(__LC_ASYNC_STACK, offsetof(struct _lowcore, async_stack));
+        DEFINE(__LC_PANIC_STACK, offsetof(struct _lowcore, panic_stack));
+        DEFINE(__LC_KERNEL_ASCE, offsetof(struct _lowcore, kernel_asce));
+        DEFINE(__LC_USER_ASCE, offsetof(struct _lowcore, user_asce));
+        DEFINE(__LC_USER_EXEC_ASCE, offsetof(struct _lowcore, user_exec_asce));
+        DEFINE(__LC_CPUID, offsetof(struct _lowcore, cpu_id));
+        DEFINE(__LC_INT_CLOCK, offsetof(struct _lowcore, int_clock));
+        DEFINE(__LC_MACHINE_FLAGS, offsetof(struct _lowcore, machine_flags));
+        DEFINE(__LC_FTRACE_FUNC, offsetof(struct _lowcore, ftrace_func));
+        DEFINE(__LC_IRB, offsetof(struct _lowcore, irb));
+        DEFINE(__LC_CPU_TIMER_SAVE_AREA, offsetof(struct _lowcore, cpu_timer_save_area));
+        DEFINE(__LC_CLOCK_COMP_SAVE_AREA, offsetof(struct _lowcore, clock_comp_save_area));
+        DEFINE(__LC_PSW_SAVE_AREA, offsetof(struct _lowcore, psw_save_area));
+        DEFINE(__LC_PREFIX_SAVE_AREA, offsetof(struct _lowcore, prefixreg_save_area));
+        DEFINE(__LC_AREGS_SAVE_AREA, offsetof(struct _lowcore, access_regs_save_area));
+        DEFINE(__LC_FPREGS_SAVE_AREA, offsetof(struct _lowcore, floating_pt_save_area));
+        DEFINE(__LC_GPREGS_SAVE_AREA, offsetof(struct _lowcore, gpregs_save_area));
+        DEFINE(__LC_CREGS_SAVE_AREA, offsetof(struct _lowcore, cregs_save_area));
+#ifdef CONFIG_32BIT
+        DEFINE(__LC_PFAULT_INTPARM, offsetof(struct _lowcore, ext_params));
+        DEFINE(SAVE_AREA_BASE, offsetof(struct _lowcore, extended_save_area_addr));
+#else /* CONFIG_32BIT */
+        DEFINE(__LC_PFAULT_INTPARM, offsetof(struct _lowcore, ext_params2));
+        DEFINE(__LC_EXT_PARAMS2, offsetof(struct _lowcore, ext_params2));
+        DEFINE(SAVE_AREA_BASE, offsetof(struct _lowcore, floating_pt_save_area));
+        DEFINE(__LC_PASTE, offsetof(struct _lowcore, paste));
+        DEFINE(__LC_FP_CREG_SAVE_AREA, offsetof(struct _lowcore, fpt_creg_save_area));
+        DEFINE(__LC_LAST_BREAK, offsetof(struct _lowcore, breaking_event_addr));
+        DEFINE(__LC_VDSO_PER_CPU, offsetof(struct _lowcore, vdso_per_cpu_data));
+#endif /* CONFIG_32BIT */
         return 0;
 }
diff --git a/arch/s390/kernel/base.S b/arch/s390/kernel/base.S
index dc7e5259770f..15e46ca94335 100644
--- a/arch/s390/kernel/base.S
+++ b/arch/s390/kernel/base.S
@@ -6,8 +6,8 @@
  *               Michael Holzheu <holzheu@de.ibm.com>
  */
 
+#include <asm/asm-offsets.h>
 #include <asm/ptrace.h>
-#include <asm/lowcore.h>
 
 #ifdef CONFIG_64BIT
 
diff --git a/arch/s390/kernel/dis.c b/arch/s390/kernel/dis.c
index db943a7ec513..b39b27d68b45 100644
--- a/arch/s390/kernel/dis.c
+++ b/arch/s390/kernel/dis.c
@@ -86,10 +86,17 @@ enum {
         U4_12,  /* 4 bit unsigned value starting at 12 */
         U4_16,  /* 4 bit unsigned value starting at 16 */
         U4_20,  /* 4 bit unsigned value starting at 20 */
+        U4_32,  /* 4 bit unsigned value starting at 32 */
         U8_8,   /* 8 bit unsigned value starting at 8 */
         U8_16,  /* 8 bit unsigned value starting at 16 */
+        U8_24,  /* 8 bit unsigned value starting at 24 */
+        U8_32,  /* 8 bit unsigned value starting at 32 */
+        I8_8,   /* 8 bit signed value starting at 8 */
+        I8_32,  /* 8 bit signed value starting at 32 */
         I16_16, /* 16 bit signed value starting at 16 */
+        I16_32, /* 32 bit signed value starting at 16 */
         U16_16, /* 16 bit unsigned value starting at 16 */
+        U16_32, /* 32 bit unsigned value starting at 16 */
         J16_16, /* PC relative jump offset at 16 */
         J32_16, /* PC relative long offset at 16 */
         I32_16, /* 32 bit signed value starting at 16 */
@@ -104,21 +111,37 @@ enum {
  */
 enum {
         INSTR_INVALID,
-        INSTR_E, INSTR_RIE_RRP, INSTR_RIL_RI, INSTR_RIL_RP, INSTR_RIL_RU,
-        INSTR_RIL_UP, INSTR_RI_RI, INSTR_RI_RP, INSTR_RI_RU, INSTR_RI_UP,
+        INSTR_E,
+        INSTR_RIE_R0IU, INSTR_RIE_R0UU, INSTR_RIE_RRP, INSTR_RIE_RRPU,
+        INSTR_RIE_RRUUU, INSTR_RIE_RUPI, INSTR_RIE_RUPU,
+        INSTR_RIL_RI, INSTR_RIL_RP, INSTR_RIL_RU, INSTR_RIL_UP,
+        INSTR_RIS_R0RDU, INSTR_RIS_R0UU, INSTR_RIS_RURDI, INSTR_RIS_RURDU,
+        INSTR_RI_RI, INSTR_RI_RP, INSTR_RI_RU, INSTR_RI_UP,
         INSTR_RRE_00, INSTR_RRE_0R, INSTR_RRE_AA, INSTR_RRE_AR, INSTR_RRE_F0,
-        INSTR_RRE_FF, INSTR_RRE_R0, INSTR_RRE_RA, INSTR_RRE_RF, INSTR_RRE_RR,
-        INSTR_RRE_RR_OPT, INSTR_RRF_F0FF, INSTR_RRF_FUFF, INSTR_RRF_M0RR,
-        INSTR_RRF_R0RR, INSTR_RRF_RURR, INSTR_RRF_U0FF, INSTR_RRF_U0RF,
+        INSTR_RRE_FF, INSTR_RRE_FR, INSTR_RRE_R0, INSTR_RRE_RA, INSTR_RRE_RF,
+        INSTR_RRE_RR, INSTR_RRE_RR_OPT,
+        INSTR_RRF_0UFF, INSTR_RRF_F0FF, INSTR_RRF_F0FF2, INSTR_RRF_F0FR,
+        INSTR_RRF_FFRU, INSTR_RRF_FUFF, INSTR_RRF_M0RR, INSTR_RRF_R0RR,
+        INSTR_RRF_RURR, INSTR_RRF_U0FF, INSTR_RRF_U0RF, INSTR_RRF_U0RR,
+        INSTR_RRF_UUFF, INSTR_RRR_F0FF, INSTR_RRS_RRRDU,
         INSTR_RR_FF, INSTR_RR_R0, INSTR_RR_RR, INSTR_RR_U0, INSTR_RR_UR,
-        INSTR_RSE_CCRD, INSTR_RSE_RRRD, INSTR_RSE_RURD, INSTR_RSI_RRP,
-        INSTR_RSL_R0RD, INSTR_RSY_AARD, INSTR_RSY_CCRD, INSTR_RSY_RRRD,
-        INSTR_RSY_RURD, INSTR_RS_AARD, INSTR_RS_CCRD, INSTR_RS_R0RD,
-        INSTR_RS_RRRD, INSTR_RS_RURD, INSTR_RXE_FRRD, INSTR_RXE_RRRD,
-        INSTR_RXF_FRRDF, INSTR_RXY_FRRD, INSTR_RXY_RRRD, INSTR_RX_FRRD,
-        INSTR_RX_RRRD, INSTR_RX_URRD, INSTR_SIY_URD, INSTR_SI_URD,
-        INSTR_SSE_RDRD, INSTR_SSF_RRDRD, INSTR_SS_L0RDRD, INSTR_SS_LIRDRD,
-        INSTR_SS_LLRDRD, INSTR_SS_RRRDRD, INSTR_SS_RRRDRD2, INSTR_SS_RRRDRD3,
+        INSTR_RSE_CCRD, INSTR_RSE_RRRD, INSTR_RSE_RURD,
+        INSTR_RSI_RRP,
+        INSTR_RSL_R0RD,
+        INSTR_RSY_AARD, INSTR_RSY_CCRD, INSTR_RSY_RRRD, INSTR_RSY_RURD,
+        INSTR_RS_AARD, INSTR_RS_CCRD, INSTR_RS_R0RD, INSTR_RS_RRRD,
+        INSTR_RS_RURD,
+        INSTR_RXE_FRRD, INSTR_RXE_RRRD,
+        INSTR_RXF_FRRDF,
+        INSTR_RXY_FRRD, INSTR_RXY_RRRD, INSTR_RXY_URRD,
+        INSTR_RX_FRRD, INSTR_RX_RRRD, INSTR_RX_URRD,
+        INSTR_SIL_RDI, INSTR_SIL_RDU,
+        INSTR_SIY_IRD, INSTR_SIY_URD,
+        INSTR_SI_URD,
+        INSTR_SSE_RDRD,
+        INSTR_SSF_RRDRD,
+        INSTR_SS_L0RDRD, INSTR_SS_LIRDRD, INSTR_SS_LLRDRD, INSTR_SS_RRRDRD,
+        INSTR_SS_RRRDRD2, INSTR_SS_RRRDRD3,
         INSTR_S_00, INSTR_S_RD,
 };
 
@@ -129,7 +152,7 @@ struct operand {
 };
 
 struct insn {
-        const char name[5];
+        const char name[6];
         unsigned char opfrag;
         unsigned char format;
 };
@@ -170,11 +193,16 @@ static const struct operand operands[] =
         [U4_12]  = {  4, 12, 0 },
         [U4_16]  = {  4, 16, 0 },
         [U4_20]  = {  4, 20, 0 },
+        [U4_32]  = {  4, 32, 0 },
         [U8_8]   = {  8,  8, 0 },
         [U8_16]  = {  8, 16, 0 },
+        [U8_24]  = {  8, 24, 0 },
+        [U8_32]  = {  8, 32, 0 },
         [I16_16] = { 16, 16, OPERAND_SIGNED },
         [U16_16] = { 16, 16, 0 },
+        [U16_32] = { 16, 32, 0 },
         [J16_16] = { 16, 16, OPERAND_PCREL },
+        [I16_32] = { 16, 32, OPERAND_SIGNED },
         [J32_16] = { 32, 16, OPERAND_PCREL },
         [I32_16] = { 32, 16, OPERAND_SIGNED },
         [U32_16] = { 32, 16, 0 },
@@ -183,82 +211,93 @@ static const struct operand operands[] =
 };
 
 static const unsigned char formats[][7] = {
-        [INSTR_E]         = { 0xff, 0,0,0,0,0,0 },             /* e.g. pr    */
-        [INSTR_RIE_RRP]   = { 0xff, R_8,R_12,J16_16,0,0,0 },   /* e.g. brxhg */
-        [INSTR_RIL_RP]    = { 0x0f, R_8,J32_16,0,0,0,0 },      /* e.g. brasl */
-        [INSTR_RIL_UP]    = { 0x0f, U4_8,J32_16,0,0,0,0 },     /* e.g. brcl  */
-        [INSTR_RIL_RI]    = { 0x0f, R_8,I32_16,0,0,0,0 },      /* e.g. afi   */
-        [INSTR_RIL_RU]    = { 0x0f, R_8,U32_16,0,0,0,0 },      /* e.g. alfi  */
-        [INSTR_RI_RI]     = { 0x0f, R_8,I16_16,0,0,0,0 },      /* e.g. ahi   */
-        [INSTR_RI_RP]     = { 0x0f, R_8,J16_16,0,0,0,0 },      /* e.g. brct  */
-        [INSTR_RI_RU]     = { 0x0f, R_8,U16_16,0,0,0,0 },      /* e.g. tml   */
-        [INSTR_RI_UP]     = { 0x0f, U4_8,J16_16,0,0,0,0 },     /* e.g. brc   */
-        [INSTR_RRE_00]    = { 0xff, 0,0,0,0,0,0 },             /* e.g. palb  */
-        [INSTR_RRE_0R]    = { 0xff, R_28,0,0,0,0,0 },          /* e.g. tb    */
-        [INSTR_RRE_AA]    = { 0xff, A_24,A_28,0,0,0,0 },       /* e.g. cpya  */
-        [INSTR_RRE_AR]    = { 0xff, A_24,R_28,0,0,0,0 },       /* e.g. sar   */
-        [INSTR_RRE_F0]    = { 0xff, F_24,0,0,0,0,0 },          /* e.g. sqer  */
-        [INSTR_RRE_FF]    = { 0xff, F_24,F_28,0,0,0,0 },       /* e.g. debr  */
-        [INSTR_RRE_R0]    = { 0xff, R_24,0,0,0,0,0 },          /* e.g. ipm   */
-        [INSTR_RRE_RA]    = { 0xff, R_24,A_28,0,0,0,0 },       /* e.g. ear   */
-        [INSTR_RRE_RF]    = { 0xff, R_24,F_28,0,0,0,0 },       /* e.g. cefbr */
-        [INSTR_RRE_RR]    = { 0xff, R_24,R_28,0,0,0,0 },       /* e.g. lura  */
-        [INSTR_RRE_RR_OPT]= { 0xff, R_24,RO_28,0,0,0,0 },      /* efpc, sfpc */
-        [INSTR_RRF_F0FF]  = { 0xff, F_16,F_24,F_28,0,0,0 },    /* e.g. madbr */
-        [INSTR_RRF_FUFF]  = { 0xff, F_24,F_16,F_28,U4_20,0,0 },/* e.g. didbr */
-        [INSTR_RRF_RURR]  = { 0xff, R_24,R_28,R_16,U4_20,0,0 },/* e.g. .insn */
-        [INSTR_RRF_R0RR]  = { 0xff, R_24,R_16,R_28,0,0,0 },    /* e.g. idte  */
-        [INSTR_RRF_U0FF]  = { 0xff, F_24,U4_16,F_28,0,0,0 },   /* e.g. fixr  */
-        [INSTR_RRF_U0RF]  = { 0xff, R_24,U4_16,F_28,0,0,0 },   /* e.g. cfebr */
-        [INSTR_RRF_M0RR]  = { 0xff, R_24,R_28,M_16,0,0,0 },    /* e.g. sske  */
-        [INSTR_RR_FF]     = { 0xff, F_8,F_12,0,0,0,0 },        /* e.g. adr   */
-        [INSTR_RR_R0]     = { 0xff, R_8, 0,0,0,0,0 },          /* e.g. spm   */
-        [INSTR_RR_RR]     = { 0xff, R_8,R_12,0,0,0,0 },        /* e.g. lr    */
-        [INSTR_RR_U0]     = { 0xff, U8_8, 0,0,0,0,0 },         /* e.g. svc   */
-        [INSTR_RR_UR]     = { 0xff, U4_8,R_12,0,0,0,0 },       /* e.g. bcr   */
-        [INSTR_RSE_RRRD]  = { 0xff, R_8,R_12,D_20,B_16,0,0 },  /* e.g. lmh   */
-        [INSTR_RSE_CCRD]  = { 0xff, C_8,C_12,D_20,B_16,0,0 },  /* e.g. lmh   */
-        [INSTR_RSE_RURD]  = { 0xff, R_8,U4_12,D_20,B_16,0,0 }, /* e.g. icmh  */
-        [INSTR_RSL_R0RD]  = { 0xff, R_8,D_20,B_16,0,0,0 },     /* e.g. tp    */
-        [INSTR_RSI_RRP]   = { 0xff, R_8,R_12,J16_16,0,0,0 },   /* e.g. brxh  */
-        [INSTR_RSY_RRRD]  = { 0xff, R_8,R_12,D20_20,B_16,0,0 },/* e.g. stmy  */
+        [INSTR_E]         = { 0xff, 0,0,0,0,0,0 },
+        [INSTR_RIE_R0UU]  = { 0xff, R_8,U16_16,U4_32,0,0,0 },
+        [INSTR_RIE_RRPU]  = { 0xff, R_8,R_12,U4_32,J16_16,0,0 },
+        [INSTR_RIE_RRP]   = { 0xff, R_8,R_12,J16_16,0,0,0 },
+        [INSTR_RIE_RRUUU] = { 0xff, R_8,R_12,U8_16,U8_24,U8_32,0 },
+        [INSTR_RIE_RUPI]  = { 0xff, R_8,I8_32,U4_12,J16_16,0,0 },
+        [INSTR_RIL_RI]    = { 0x0f, R_8,I32_16,0,0,0,0 },
+        [INSTR_RIL_RP]    = { 0x0f, R_8,J32_16,0,0,0,0 },
+        [INSTR_RIL_RU]    = { 0x0f, R_8,U32_16,0,0,0,0 },
+        [INSTR_RIL_UP]    = { 0x0f, U4_8,J32_16,0,0,0,0 },
+        [INSTR_RIS_R0RDU] = { 0xff, R_8,U8_32,D_20,B_16,0,0 },
+        [INSTR_RIS_RURDI] = { 0xff, R_8,I8_32,U4_12,D_20,B_16,0 },
+        [INSTR_RIS_RURDU] = { 0xff, R_8,U8_32,U4_12,D_20,B_16,0 },
+        [INSTR_RI_RI]     = { 0x0f, R_8,I16_16,0,0,0,0 },
+        [INSTR_RI_RP]     = { 0x0f, R_8,J16_16,0,0,0,0 },
+        [INSTR_RI_RU]     = { 0x0f, R_8,U16_16,0,0,0,0 },
+        [INSTR_RI_UP]     = { 0x0f, U4_8,J16_16,0,0,0,0 },
+        [INSTR_RRE_00]    = { 0xff, 0,0,0,0,0,0 },
+        [INSTR_RRE_0R]    = { 0xff, R_28,0,0,0,0,0 },
+        [INSTR_RRE_AA]    = { 0xff, A_24,A_28,0,0,0,0 },
+        [INSTR_RRE_AR]    = { 0xff, A_24,R_28,0,0,0,0 },
+        [INSTR_RRE_F0]    = { 0xff, F_24,0,0,0,0,0 },
+        [INSTR_RRE_FF]    = { 0xff, F_24,F_28,0,0,0,0 },
+        [INSTR_RRE_FR]    = { 0xff, F_24,R_28,0,0,0,0 },
+        [INSTR_RRE_R0]    = { 0xff, R_24,0,0,0,0,0 },
+        [INSTR_RRE_RA]    = { 0xff, R_24,A_28,0,0,0,0 },
+        [INSTR_RRE_RF]    = { 0xff, R_24,F_28,0,0,0,0 },
+        [INSTR_RRE_RR]    = { 0xff, R_24,R_28,0,0,0,0 },
+        [INSTR_RRE_RR_OPT]= { 0xff, R_24,RO_28,0,0,0,0 },
+        [INSTR_RRF_0UFF]  = { 0xff, F_24,F_28,U4_20,0,0,0 },
+        [INSTR_RRF_F0FF2] = { 0xff, F_24,F_16,F_28,0,0,0 },
+        [INSTR_RRF_F0FF]  = { 0xff, F_16,F_24,F_28,0,0,0 },
+        [INSTR_RRF_F0FR]  = { 0xff, F_24,F_16,R_28,0,0,0 },
+        [INSTR_RRF_FFRU]  = { 0xff, F_24,F_16,R_28,U4_20,0,0 },
+        [INSTR_RRF_FUFF]  = { 0xff, F_24,F_16,F_28,U4_20,0,0 },
+        [INSTR_RRF_M0RR]  = { 0xff, R_24,R_28,M_16,0,0,0 },
+        [INSTR_RRF_R0RR]  = { 0xff, R_24,R_16,R_28,0,0,0 },
+        [INSTR_RRF_RURR]  = { 0xff, R_24,R_28,R_16,U4_20,0,0 },
+        [INSTR_RRF_U0FF]  = { 0xff, F_24,U4_16,F_28,0,0,0 },
+        [INSTR_RRF_U0RF]  = { 0xff, R_24,U4_16,F_28,0,0,0 },
+        [INSTR_RRF_U0RR]  = { 0xff, R_24,R_28,U4_16,0,0,0 },
+        [INSTR_RRF_UUFF]  = { 0xff, F_24,U4_16,F_28,U4_20,0,0 },
+        [INSTR_RRR_F0FF]  = { 0xff, F_24,F_28,F_16,0,0,0 },
+        [INSTR_RRS_RRRDU] = { 0xff, R_8,R_12,U4_32,D_20,B_16,0 },
+        [INSTR_RR_FF]     = { 0xff, F_8,F_12,0,0,0,0 },
+        [INSTR_RR_R0]     = { 0xff, R_8, 0,0,0,0,0 },
+        [INSTR_RR_RR]     = { 0xff, R_8,R_12,0,0,0,0 },
+        [INSTR_RR_U0]     = { 0xff, U8_8, 0,0,0,0,0 },
+        [INSTR_RR_UR]     = { 0xff, U4_8,R_12,0,0,0,0 },
+        [INSTR_RSE_CCRD]  = { 0xff, C_8,C_12,D_20,B_16,0,0 },
+        [INSTR_RSE_RRRD]  = { 0xff, R_8,R_12,D_20,B_16,0,0 },
+        [INSTR_RSE_RURD]  = { 0xff, R_8,U4_12,D_20,B_16,0,0 },
+        [INSTR_RSI_RRP]   = { 0xff, R_8,R_12,J16_16,0,0,0 },
+        [INSTR_RSL_R0RD]  = { 0xff, D_20,L4_8,B_16,0,0,0 },
+        [INSTR_RSY_AARD]  = { 0xff, A_8,A_12,D20_20,B_16,0,0 },
+        [INSTR_RSY_CCRD]  = { 0xff, C_8,C_12,D20_20,B_16,0,0 },
+        [INSTR_RSY_RRRD]  = { 0xff, R_8,R_12,D20_20,B_16,0,0 },
         [INSTR_RSY_RURD]  = { 0xff, R_8,U4_12,D20_20,B_16,0,0 },
-                                                               /* e.g. icmh  */
-        [INSTR_RSY_AARD]  = { 0xff, A_8,A_12,D20_20,B_16,0,0 },/* e.g. lamy  */
-        [INSTR_RSY_CCRD]  = { 0xff, C_8,C_12,D20_20,B_16,0,0 },/* e.g. lamy  */
-        [INSTR_RS_AARD]   = { 0xff, A_8,A_12,D_20,B_16,0,0 },  /* e.g. lam   */
-        [INSTR_RS_CCRD]   = { 0xff, C_8,C_12,D_20,B_16,0,0 },  /* e.g. lctl  */
-        [INSTR_RS_R0RD]   = { 0xff, R_8,D_20,B_16,0,0,0 },     /* e.g. sll   */
-        [INSTR_RS_RRRD]   = { 0xff, R_8,R_12,D_20,B_16,0,0 },  /* e.g. cs    */
-        [INSTR_RS_RURD]   = { 0xff, R_8,U4_12,D_20,B_16,0,0 }, /* e.g. icm   */
-        [INSTR_RXE_FRRD]  = { 0xff, F_8,D_20,X_12,B_16,0,0 },  /* e.g. axbr  */
-        [INSTR_RXE_RRRD]  = { 0xff, R_8,D_20,X_12,B_16,0,0 },  /* e.g. lg    */
+        [INSTR_RS_AARD]   = { 0xff, A_8,A_12,D_20,B_16,0,0 },
+        [INSTR_RS_CCRD]   = { 0xff, C_8,C_12,D_20,B_16,0,0 },
+        [INSTR_RS_R0RD]   = { 0xff, R_8,D_20,B_16,0,0,0 },
+        [INSTR_RS_RRRD]   = { 0xff, R_8,R_12,D_20,B_16,0,0 },
+        [INSTR_RS_RURD]   = { 0xff, R_8,U4_12,D_20,B_16,0,0 },
+        [INSTR_RXE_FRRD]  = { 0xff, F_8,D_20,X_12,B_16,0,0 },
+        [INSTR_RXE_RRRD]  = { 0xff, R_8,D_20,X_12,B_16,0,0 },
         [INSTR_RXF_FRRDF] = { 0xff, F_32,F_8,D_20,X_12,B_16,0 },
-                                                               /* e.g. madb  */
-        [INSTR_RXY_RRRD]  = { 0xff, R_8,D20_20,X_12,B_16,0,0 },/* e.g. ly    */
-        [INSTR_RXY_FRRD]  = { 0xff, F_8,D20_20,X_12,B_16,0,0 },/* e.g. ley   */
-        [INSTR_RX_FRRD]   = { 0xff, F_8,D_20,X_12,B_16,0,0 },  /* e.g. ae    */
-        [INSTR_RX_RRRD]   = { 0xff, R_8,D_20,X_12,B_16,0,0 },  /* e.g. l     */
-        [INSTR_RX_URRD]   = { 0xff, U4_8,D_20,X_12,B_16,0,0 }, /* e.g. bc    */
-        [INSTR_SI_URD]    = { 0xff, D_20,B_16,U8_8,0,0,0 },    /* e.g. cli   */
-        [INSTR_SIY_URD]   = { 0xff, D20_20,B_16,U8_8,0,0,0 },  /* e.g. tmy   */
-        [INSTR_SSE_RDRD]  = { 0xff, D_20,B_16,D_36,B_32,0,0 }, /* e.g. mvsdk */
+        [INSTR_RXY_FRRD]  = { 0xff, F_8,D20_20,X_12,B_16,0,0 },
+        [INSTR_RXY_RRRD]  = { 0xff, R_8,D20_20,X_12,B_16,0,0 },
+        [INSTR_RXY_URRD]  = { 0xff, U4_8,D20_20,X_12,B_16,0,0 },
+        [INSTR_RX_FRRD]   = { 0xff, F_8,D_20,X_12,B_16,0,0 },
+        [INSTR_RX_RRRD]   = { 0xff, R_8,D_20,X_12,B_16,0,0 },
+        [INSTR_RX_URRD]   = { 0xff, U4_8,D_20,X_12,B_16,0,0 },
+        [INSTR_SIL_RDI]   = { 0xff, D_20,B_16,I16_32,0,0,0 },
+        [INSTR_SIL_RDU]   = { 0xff, D_20,B_16,U16_32,0,0,0 },
+        [INSTR_SIY_IRD]   = { 0xff, D20_20,B_16,I8_8,0,0,0 },
+        [INSTR_SIY_URD]   = { 0xff, D20_20,B_16,U8_8,0,0,0 },
+        [INSTR_SI_URD]    = { 0xff, D_20,B_16,U8_8,0,0,0 },
+        [INSTR_SSE_RDRD]  = { 0xff, D_20,B_16,D_36,B_32,0,0 },
+        [INSTR_SSF_RRDRD] = { 0x00, D_20,B_16,D_36,B_32,R_8,0 },
         [INSTR_SS_L0RDRD] = { 0xff, D_20,L8_8,B_16,D_36,B_32,0 },
-                                                               /* e.g. mvc   */
         [INSTR_SS_LIRDRD] = { 0xff, D_20,L4_8,B_16,D_36,B_32,U4_12 },
-                                                               /* e.g. srp   */
         [INSTR_SS_LLRDRD] = { 0xff, D_20,L4_8,B_16,D_36,L4_12,B_32 },
-                                                               /* e.g. pack  */
-        [INSTR_SS_RRRDRD] = { 0xff, D_20,R_8,B_16,D_36,B_32,R_12 },
-                                                               /* e.g. mvck  */
         [INSTR_SS_RRRDRD2]= { 0xff, R_8,D_20,B_16,R_12,D_36,B_32 },
-                                                               /* e.g. plo   */
         [INSTR_SS_RRRDRD3]= { 0xff, R_8,R_12,D_20,B_16,D_36,B_32 },
-                                                               /* e.g. lmd   */
-        [INSTR_S_00]      = { 0xff, 0,0,0,0,0,0 },             /* e.g. hsch  */
-        [INSTR_S_RD]      = { 0xff, D_20,B_16,0,0,0,0 },       /* e.g. lpsw  */
-        [INSTR_SSF_RRDRD] = { 0x00, D_20,B_16,D_36,B_32,R_8,0 },
-                                                               /* e.g. mvcos */
+        [INSTR_SS_RRRDRD] = { 0xff, D_20,R_8,B_16,D_36,B_32,R_12 },
+        [INSTR_S_00]      = { 0xff, 0,0,0,0,0,0 },
+        [INSTR_S_RD]      = { 0xff, D_20,B_16,0,0,0,0 },
 };
 
 static struct insn opcode[] = {
@@ -454,6 +493,8 @@ static struct insn opcode[] = {
 static struct insn opcode_01[] = {
 #ifdef CONFIG_64BIT
         { "sam64", 0x0e, INSTR_E },
+        { "pfpo", 0x0a, INSTR_E },
+        { "ptff", 0x04, INSTR_E },
 #endif
         { "pr", 0x01, INSTR_E },
         { "upt", 0x02, INSTR_E },
@@ -519,6 +560,8 @@ static struct insn opcode_b2[] = {
         { "cutfu", 0xa7, INSTR_RRF_M0RR },
         { "stfle", 0xb0, INSTR_S_RD },
         { "lpswe", 0xb2, INSTR_S_RD },
+        { "srnmt", 0xb9, INSTR_S_RD },
+        { "lfas", 0xbd, INSTR_S_RD },
 #endif
         { "stidp", 0x02, INSTR_S_RD },
         { "sck", 0x04, INSTR_S_RD },
@@ -589,7 +632,6 @@ static struct insn opcode_b2[] = {
         { "clst", 0x5d, INSTR_RRE_RR },
         { "srst", 0x5e, INSTR_RRE_RR },
         { "cmpsc", 0x63, INSTR_RRE_RR },
-        { "cmpsc", 0x63, INSTR_RRE_RR },
         { "siga", 0x74, INSTR_S_RD },
         { "xsch", 0x76, INSTR_S_00 },
         { "rp", 0x77, INSTR_S_RD },
@@ -630,6 +672,57 @@ static struct insn opcode_b3[] = {
         { "cger", 0xc8, INSTR_RRF_U0RF },
         { "cgdr", 0xc9, INSTR_RRF_U0RF },
         { "cgxr", 0xca, INSTR_RRF_U0RF },
+        { "lpdfr", 0x70, INSTR_RRE_FF },
+        { "lndfr", 0x71, INSTR_RRE_FF },
+        { "cpsdr", 0x72, INSTR_RRF_F0FF2 },
+        { "lcdfr", 0x73, INSTR_RRE_FF },
+        { "ldgr", 0xc1, INSTR_RRE_FR },
+        { "lgdr", 0xcd, INSTR_RRE_RF },
+        { "adtr", 0xd2, INSTR_RRR_F0FF },
+        { "axtr", 0xda, INSTR_RRR_F0FF },
+        { "cdtr", 0xe4, INSTR_RRE_FF },
+        { "cxtr", 0xec, INSTR_RRE_FF },
+        { "kdtr", 0xe0, INSTR_RRE_FF },
+        { "kxtr", 0xe8, INSTR_RRE_FF },
+        { "cedtr", 0xf4, INSTR_RRE_FF },
+        { "cextr", 0xfc, INSTR_RRE_FF },
+        { "cdgtr", 0xf1, INSTR_RRE_FR },
+        { "cxgtr", 0xf9, INSTR_RRE_FR },
+        { "cdstr", 0xf3, INSTR_RRE_FR },
+        { "cxstr", 0xfb, INSTR_RRE_FR },
+        { "cdutr", 0xf2, INSTR_RRE_FR },
+        { "cxutr", 0xfa, INSTR_RRE_FR },
+        { "cgdtr", 0xe1, INSTR_RRF_U0RF },
+        { "cgxtr", 0xe9, INSTR_RRF_U0RF },
+        { "csdtr", 0xe3, INSTR_RRE_RF },
+        { "csxtr", 0xeb, INSTR_RRE_RF },
+        { "cudtr", 0xe2, INSTR_RRE_RF },
+        { "cuxtr", 0xea, INSTR_RRE_RF },
+        { "ddtr", 0xd1, INSTR_RRR_F0FF },
+        { "dxtr", 0xd9, INSTR_RRR_F0FF },
+        { "eedtr", 0xe5, INSTR_RRE_RF },
+        { "eextr", 0xed, INSTR_RRE_RF },
+        { "esdtr", 0xe7, INSTR_RRE_RF },
+        { "esxtr", 0xef, INSTR_RRE_RF },
+        { "iedtr", 0xf6, INSTR_RRF_F0FR },
+        { "iextr", 0xfe, INSTR_RRF_F0FR },
+        { "ltdtr", 0xd6, INSTR_RRE_FF },
+        { "ltxtr", 0xde, INSTR_RRE_FF },
+        { "fidtr", 0xd7, INSTR_RRF_UUFF },
+        { "fixtr", 0xdf, INSTR_RRF_UUFF },
+        { "ldetr", 0xd4, INSTR_RRF_0UFF },
+        { "lxdtr", 0xdc, INSTR_RRF_0UFF },
+        { "ledtr", 0xd5, INSTR_RRF_UUFF },
+        { "ldxtr", 0xdd, INSTR_RRF_UUFF },
+        { "mdtr", 0xd0, INSTR_RRR_F0FF },
+        { "mxtr", 0xd8, INSTR_RRR_F0FF },
+        { "qadtr", 0xf5, INSTR_RRF_FUFF },
+        { "qaxtr", 0xfd, INSTR_RRF_FUFF },
+        { "rrdtr", 0xf7, INSTR_RRF_FFRU },
+        { "rrxtr", 0xff, INSTR_RRF_FFRU },
+        { "sfasr", 0x85, INSTR_RRE_R0 },
+        { "sdtr", 0xd3, INSTR_RRR_F0FF },
+        { "sxtr", 0xdb, INSTR_RRR_F0FF },
 #endif
         { "lpebr", 0x00, INSTR_RRE_FF },
         { "lnebr", 0x01, INSTR_RRE_FF },
@@ -780,6 +873,14 @@ static struct insn opcode_b9[] = {
         { "cu24", 0xb1, INSTR_RRF_M0RR },
         { "cu41", 0xb2, INSTR_RRF_M0RR },
         { "cu42", 0xb3, INSTR_RRF_M0RR },
+        { "crt", 0x72, INSTR_RRF_U0RR },
+        { "cgrt", 0x60, INSTR_RRF_U0RR },
+        { "clrt", 0x73, INSTR_RRF_U0RR },
+        { "clgrt", 0x61, INSTR_RRF_U0RR },
+        { "ptf", 0xa2, INSTR_RRE_R0 },
+        { "pfmf", 0xaf, INSTR_RRE_RR },
+        { "trte", 0xbf, INSTR_RRF_M0RR },
+        { "trtre", 0xbd, INSTR_RRF_M0RR },
 #endif
         { "kmac", 0x1e, INSTR_RRE_RR },
         { "lrvr", 0x1f, INSTR_RRE_RR },
@@ -835,6 +936,43 @@ static struct insn opcode_c2[] = {
         { "cfi", 0x0d, INSTR_RIL_RI },
         { "clgfi", 0x0e, INSTR_RIL_RU },
         { "clfi", 0x0f, INSTR_RIL_RU },
+        { "msfi", 0x01, INSTR_RIL_RI },
+        { "msgfi", 0x00, INSTR_RIL_RI },
+#endif
+        { "", 0, INSTR_INVALID }
+};
+
+static struct insn opcode_c4[] = {
+#ifdef CONFIG_64BIT
+        { "lrl", 0x0d, INSTR_RIL_RP },
+        { "lgrl", 0x08, INSTR_RIL_RP },
+        { "lgfrl", 0x0c, INSTR_RIL_RP },
+        { "lhrl", 0x05, INSTR_RIL_RP },
+        { "lghrl", 0x04, INSTR_RIL_RP },
+        { "llgfrl", 0x0e, INSTR_RIL_RP },
+        { "llhrl", 0x02, INSTR_RIL_RP },
+        { "llghrl", 0x06, INSTR_RIL_RP },
+        { "strl", 0x0f, INSTR_RIL_RP },
+        { "stgrl", 0x0b, INSTR_RIL_RP },
+        { "sthrl", 0x07, INSTR_RIL_RP },
+#endif
+        { "", 0, INSTR_INVALID }
+};
+
+static struct insn opcode_c6[] = {
+#ifdef CONFIG_64BIT
+        { "crl", 0x0d, INSTR_RIL_RP },
+        { "cgrl", 0x08, INSTR_RIL_RP },
+        { "cgfrl", 0x0c, INSTR_RIL_RP },
+        { "chrl", 0x05, INSTR_RIL_RP },
+        { "cghrl", 0x04, INSTR_RIL_RP },
+        { "clrl", 0x0f, INSTR_RIL_RP },
+        { "clgrl", 0x0a, INSTR_RIL_RP },
+        { "clgfrl", 0x0e, INSTR_RIL_RP },
+        { "clhrl", 0x07, INSTR_RIL_RP },
+        { "clghrl", 0x06, INSTR_RIL_RP },
+        { "pfdrl", 0x02, INSTR_RIL_UP },
+        { "exrl", 0x00, INSTR_RIL_RP },
 #endif
         { "", 0, INSTR_INVALID }
 };
@@ -842,6 +980,8 @@ static struct insn opcode_c2[] = {
 static struct insn opcode_c8[] = {
 #ifdef CONFIG_64BIT
         { "mvcos", 0x00, INSTR_SSF_RRDRD },
+        { "ectg", 0x01, INSTR_SSF_RRDRD },
+        { "csst", 0x02, INSTR_SSF_RRDRD },
 #endif
         { "", 0, INSTR_INVALID }
 };
@@ -917,6 +1057,12 @@ static struct insn opcode_e3[] = {
         { "llgh", 0x91, INSTR_RXY_RRRD },
         { "llc", 0x94, INSTR_RXY_RRRD },
         { "llh", 0x95, INSTR_RXY_RRRD },
+        { "cgh", 0x34, INSTR_RXY_RRRD },
+        { "laey", 0x75, INSTR_RXY_RRRD },
+        { "ltgf", 0x32, INSTR_RXY_RRRD },
+        { "mfy", 0x5c, INSTR_RXY_RRRD },
+        { "mhy", 0x7c, INSTR_RXY_RRRD },
+        { "pfd", 0x36, INSTR_RXY_URRD },
 #endif
         { "lrv", 0x1e, INSTR_RXY_RRRD },
         { "lrvh", 0x1f, INSTR_RXY_RRRD },
@@ -931,6 +1077,15 @@ static struct insn opcode_e3[] = {
 static struct insn opcode_e5[] = {
 #ifdef CONFIG_64BIT
         { "strag", 0x02, INSTR_SSE_RDRD },
+        { "chhsi", 0x54, INSTR_SIL_RDI },
+        { "chsi", 0x5c, INSTR_SIL_RDI },
+        { "cghsi", 0x58, INSTR_SIL_RDI },
+        { "clhhsi", 0x55, INSTR_SIL_RDU },
+        { "clfhsi", 0x5d, INSTR_SIL_RDU },
+        { "clghsi", 0x59, INSTR_SIL_RDU },
+        { "mvhhi", 0x44, INSTR_SIL_RDI },
+        { "mvhi", 0x4c, INSTR_SIL_RDI },
+        { "mvghi", 0x48, INSTR_SIL_RDI },
 #endif
         { "lasp", 0x00, INSTR_SSE_RDRD },
         { "tprot", 0x01, INSTR_SSE_RDRD },
@@ -977,6 +1132,11 @@ static struct insn opcode_eb[] = {
         { "lmy", 0x98, INSTR_RSY_RRRD },
         { "lamy", 0x9a, INSTR_RSY_AARD },
         { "stamy", 0x9b, INSTR_RSY_AARD },
+        { "asi", 0x6a, INSTR_SIY_IRD },
+        { "agsi", 0x7a, INSTR_SIY_IRD },
+        { "alsi", 0x6e, INSTR_SIY_IRD },
+        { "algsi", 0x7e, INSTR_SIY_IRD },
+        { "ecag", 0x4c, INSTR_RSY_RRRD },
 #endif
         { "rll", 0x1d, INSTR_RSY_RRRD },
         { "mvclu", 0x8e, INSTR_RSY_RRRD },
@@ -988,6 +1148,30 @@ static struct insn opcode_ec[] = {
 #ifdef CONFIG_64BIT
         { "brxhg", 0x44, INSTR_RIE_RRP },
         { "brxlg", 0x45, INSTR_RIE_RRP },
+        { "crb", 0xf6, INSTR_RRS_RRRDU },
+        { "cgrb", 0xe4, INSTR_RRS_RRRDU },
+        { "crj", 0x76, INSTR_RIE_RRPU },
+        { "cgrj", 0x64, INSTR_RIE_RRPU },
+        { "cib", 0xfe, INSTR_RIS_RURDI },
+        { "cgib", 0xfc, INSTR_RIS_RURDI },
+        { "cij", 0x7e, INSTR_RIE_RUPI },
+        { "cgij", 0x7c, INSTR_RIE_RUPI },
+        { "cit", 0x72, INSTR_RIE_R0IU },
+        { "cgit", 0x70, INSTR_RIE_R0IU },
+        { "clrb", 0xf7, INSTR_RRS_RRRDU },
+        { "clgrb", 0xe5, INSTR_RRS_RRRDU },
+        { "clrj", 0x77, INSTR_RIE_RRPU },
+        { "clgrj", 0x65, INSTR_RIE_RRPU },
+        { "clib", 0xff, INSTR_RIS_RURDU },
+        { "clgib", 0xfd, INSTR_RIS_RURDU },
+        { "clij", 0x7f, INSTR_RIE_RUPU },
+        { "clgij", 0x7d, INSTR_RIE_RUPU },
+        { "clfit", 0x73, INSTR_RIE_R0UU },
+        { "clgit", 0x71, INSTR_RIE_R0UU },
+        { "rnsbg", 0x54, INSTR_RIE_RRUUU },
+        { "rxsbg", 0x57, INSTR_RIE_RRUUU },
+        { "rosbg", 0x56, INSTR_RIE_RRUUU },
+        { "risbg", 0x55, INSTR_RIE_RRUUU },
 #endif
         { "", 0, INSTR_INVALID }
 };
@@ -1004,6 +1188,16 @@ static struct insn opcode_ed[] = {
         { "ldy", 0x65, INSTR_RXY_FRRD },
         { "stey", 0x66, INSTR_RXY_FRRD },
         { "stdy", 0x67, INSTR_RXY_FRRD },
+        { "sldt", 0x40, INSTR_RXF_FRRDF },
+        { "slxt", 0x48, INSTR_RXF_FRRDF },
+        { "srdt", 0x41, INSTR_RXF_FRRDF },
+        { "srxt", 0x49, INSTR_RXF_FRRDF },
+        { "tdcet", 0x50, INSTR_RXE_FRRD },
+        { "tdcdt", 0x54, INSTR_RXE_FRRD },
+        { "tdcxt", 0x58, INSTR_RXE_FRRD },
+        { "tdget", 0x51, INSTR_RXE_FRRD },
+        { "tdgdt", 0x55, INSTR_RXE_FRRD },
+        { "tdgxt", 0x59, INSTR_RXE_FRRD },
 #endif
         { "ldeb", 0x04, INSTR_RXE_FRRD },
         { "lxdb", 0x05, INSTR_RXE_FRRD },
@@ -1037,6 +1231,7 @@ static struct insn opcode_ed[] = {
         { "mae", 0x2e, INSTR_RXF_FRRDF },
         { "mse", 0x2f, INSTR_RXF_FRRDF },
         { "sqe", 0x34, INSTR_RXE_FRRD },
+        { "sqd", 0x35, INSTR_RXE_FRRD },
         { "mee", 0x37, INSTR_RXE_FRRD },
         { "mad", 0x3e, INSTR_RXF_FRRDF },
         { "msd", 0x3f, INSTR_RXF_FRRDF },
@@ -1117,6 +1312,12 @@ static struct insn *find_insn(unsigned char *code)
         case 0xc2:
                 table = opcode_c2;
                 break;
+        case 0xc4:
+                table = opcode_c4;
+                break;
+        case 0xc6:
+                table = opcode_c6;
+                break;
         case 0xc8:
                 table = opcode_c8;
                 break;
diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c
index e49e9e0c69fd..31d618a443af 100644
--- a/arch/s390/kernel/early.c
+++ b/arch/s390/kernel/early.c
@@ -214,10 +214,13 @@ static __initdata struct sysinfo_3_2_2 vmms __aligned(PAGE_SIZE);
 
 static noinline __init void detect_machine_type(void)
 {
-        /* No VM information? Looks like LPAR */
-        if (stsi(&vmms, 3, 2, 2) == -ENOSYS)
+        /* Check current-configuration-level */
+        if ((stsi(NULL, 0, 0, 0) >> 28) <= 2) {
+                S390_lowcore.machine_flags |= MACHINE_FLAG_LPAR;
                 return;
-        if (!vmms.count)
+        }
+        /* Get virtual-machine cpu information. */
+        if (stsi(&vmms, 3, 2, 2) == -ENOSYS || !vmms.count)
                 return;
 
         /* Running under KVM? If not we assume z/VM */
@@ -402,8 +405,19 @@ static void __init append_to_cmdline(size_t (*ipl_data)(char *, size_t))
 
 static void __init setup_boot_command_line(void)
 {
+        int i;
+
+        /* convert arch command line to ascii */
+        for (i = 0; i < ARCH_COMMAND_LINE_SIZE; i++)
+                if (COMMAND_LINE[i] & 0x80)
+                        break;
+        if (i < ARCH_COMMAND_LINE_SIZE)
+                EBCASC(COMMAND_LINE, ARCH_COMMAND_LINE_SIZE);
+        COMMAND_LINE[ARCH_COMMAND_LINE_SIZE-1] = 0;
+
         /* copy arch command line */
-        strlcpy(boot_command_line, COMMAND_LINE, ARCH_COMMAND_LINE_SIZE);
+        strlcpy(boot_command_line, strstrip(COMMAND_LINE),
+                ARCH_COMMAND_LINE_SIZE);
 
         /* append IPL PARM data to the boot command line */
         if (MACHINE_IS_VM)
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S
index e8ef21c51bbe..4348f9bc5393 100644
--- a/arch/s390/kernel/entry.S
+++ b/arch/s390/kernel/entry.S
@@ -13,7 +13,6 @@
 #include <linux/linkage.h>
 #include <linux/init.h>
 #include <asm/cache.h>
-#include <asm/lowcore.h>
 #include <asm/errno.h>
 #include <asm/ptrace.h>
 #include <asm/thread_info.h>
diff --git a/arch/s390/kernel/entry64.S b/arch/s390/kernel/entry64.S
index f33658f09dd7..29fd0f1e6ec4 100644
--- a/arch/s390/kernel/entry64.S
+++ b/arch/s390/kernel/entry64.S
@@ -9,11 +9,9 @@
  *               Heiko Carstens <heiko.carstens@de.ibm.com>
  */
 
-#include <linux/sys.h>
 #include <linux/linkage.h>
 #include <linux/init.h>
 #include <asm/cache.h>
-#include <asm/lowcore.h>
 #include <asm/errno.h>
 #include <asm/ptrace.h>
 #include <asm/thread_info.h>
diff --git a/arch/s390/kernel/ftrace.c b/arch/s390/kernel/ftrace.c
index 5a82bc68193e..6a83d0581317 100644
--- a/arch/s390/kernel/ftrace.c
+++ b/arch/s390/kernel/ftrace.c
@@ -13,7 +13,7 @@
 #include <linux/kernel.h>
 #include <linux/types.h>
 #include <trace/syscall.h>
-#include <asm/lowcore.h>
+#include <asm/asm-offsets.h>
 
 #ifdef CONFIG_DYNAMIC_FTRACE
 
@@ -200,13 +200,3 @@ out:
         return parent;
 }
 #endif /* CONFIG_FUNCTION_GRAPH_TRACER */
-
-#ifdef CONFIG_FTRACE_SYSCALLS
-
-extern unsigned int sys_call_table[];
-
-unsigned long __init arch_syscall_addr(int nr)
-{
-        return (unsigned long)sys_call_table[nr];
-}
-#endif
diff --git a/arch/s390/kernel/head.S b/arch/s390/kernel/head.S
index c52b4f7742fa..ca4a62bd862f 100644
--- a/arch/s390/kernel/head.S
+++ b/arch/s390/kernel/head.S
@@ -1,5 +1,5 @@
 /*
- * Copyright IBM Corp. 1999,2009
+ * Copyright IBM Corp. 1999,2010
  *
  *    Author(s): Hartmut Penner <hp@de.ibm.com>
  *               Martin Schwidefsky <schwidefsky@de.ibm.com>
@@ -22,12 +22,9 @@
  */
 
 #include <linux/init.h>
-#include <asm/setup.h>
-#include <asm/lowcore.h>
 #include <asm/asm-offsets.h>
 #include <asm/thread_info.h>
 #include <asm/page.h>
-#include <asm/cpu.h>
 
 #ifdef CONFIG_64BIT
 #define ARCH_OFFSET     4
@@ -288,19 +285,7 @@ iplstart:
         bz      .Lagain1                # skip dateset trailer
         la      %r5,0(%r4,%r2)
         lr      %r3,%r2
-.Lidebc:
-        tm      0(%r5),0x80             # high order bit set ?
-        bo      .Ldocv                  #  yes -> convert from EBCDIC
-        ahi     %r5,-1
-        bct     %r3,.Lidebc
-        b       .Lnocv
-.Ldocv:
-        l       %r3,.Lcvtab
-        tr      0(256,%r4),0(%r3)       # convert parameters to ascii
-        tr      256(256,%r4),0(%r3)
-        tr      512(256,%r4),0(%r3)
-        tr      768(122,%r4),0(%r3)
-.Lnocv: la      %r3,COMMAND_LINE-PARMAREA(%r12) # load adr. of command line
+        la      %r3,COMMAND_LINE-PARMAREA(%r12) # load adr. of command line
         mvc     0(256,%r3),0(%r4)
         mvc     256(256,%r3),256(%r4)
         mvc     512(256,%r3),512(%r4)
@@ -384,7 +369,6 @@ iplstart:
 .Linitrd:.long _end + 0x400000          # default address of initrd
 .Lparm: .long  PARMAREA
 .Lstartup: .long startup
-.Lcvtab:.long   _ebcasc                 # ebcdic to ascii table
 .Lreset:.byte   0xc3,0xc8,0xc1,0xd5,0xc7,0xc5,0x40,0xd9,0xc4,0xd9,0x40
         .byte   0xc1,0xd3,0xd3,0x40,0xd2,0xc5,0xc5,0xd7,0x40,0xd5,0xd6
         .byte   0xc8,0xd6,0xd3,0xc4     # "change rdr all keep nohold"
@@ -417,13 +401,10 @@ start:
 .sk8x8:
         mvc     0(240,%r8),0(%r9)       # copy iplparms into buffer
 .gotr:
-        l       %r10,.tbl               # EBCDIC to ASCII table
-        tr      0(240,%r8),0(%r10)
         slr     %r0,%r0
         st      %r0,INITRD_SIZE+ARCH_OFFSET-PARMAREA(%r11)
         st      %r0,INITRD_START+ARCH_OFFSET-PARMAREA(%r11)
         j       startup                 # continue with startup
-.tbl:   .long   _ebcasc                 # translate table
 .cmd:   .long   COMMAND_LINE            # address of command line buffer
 .parm:  .long   PARMAREA
 .lowcase:
@@ -467,16 +448,15 @@ start:
 # or linload or SALIPL
 #
         .org    0x10000
-startup:basr    %r13,0                  # get base
+        .globl  startup
+startup:
+        basr    %r13,0                  # get base
 .LPG0:
         xc      0x200(256),0x200        # partially clear lowcore
         xc      0x300(256),0x300
-        l       %r1,5f-.LPG0(%r13)
-        stck    0(%r1)
-        spt     6f-.LPG0(%r13)
-        mvc     __LC_LAST_UPDATE_CLOCK(8),0(%r1)
-        mvc     __LC_LAST_UPDATE_TIMER(8),6f-.LPG0(%r13)
-        mvc     __LC_EXIT_TIMER(8),5f-.LPG0(%r13)
+        stck    __LC_LAST_UPDATE_CLOCK
+        spt     5f-.LPG0(%r13)
+        mvc     __LC_LAST_UPDATE_TIMER(8),5f-.LPG0(%r13)
 #ifndef CONFIG_MARCH_G5
         # check capabilities against MARCH_{G5,Z900,Z990,Z9_109,Z10}
         xc      __LC_STFL_FAC_LIST(8),__LC_STFL_FAC_LIST
@@ -494,7 +474,6 @@ startup:basr	%r13,0			# get base
         cl      %r0,2f+12-.LPG0(%r13)
         je      3f
 1:      l       %r15,.Lstack-.LPG0(%r13)
-        ahi     %r15,1<<(PAGE_SHIFT+THREAD_ORDER) # init_task_union+THREAD_SIZE
         ahi     %r15,-96
         la      %r2,.Lals_string-.LPG0(%r13)
         l       %r3,.Lsclp_print-.LPG0(%r13)
@@ -505,7 +484,7 @@ startup:basr	%r13,0			# get base
 .Lsclp_print:
         .long   _sclp_print_early
 .Lstack:
-        .long   init_thread_union
+        .long   0x8000 + (1<<(PAGE_SHIFT+THREAD_ORDER))
         .align 16
 2:      .long   0x000a0000,0x8badcccc
 #if defined(CONFIG_64BIT)
@@ -532,13 +511,22 @@ startup:basr	%r13,0			# get base
 3:
 #endif
 
+#ifdef CONFIG_64BIT
+        mvi     __LC_AR_MODE_ID,1       # set esame flag
+        slr     %r0,%r0                 # set cpuid to zero
+        lhi     %r1,2                   # mode 2 = esame (dump)
+        sigp    %r1,%r0,0x12            # switch to esame mode
+        sam64                           # switch to 64 bit mode
+        jg      startup_continue
+#else
+        mvi     __LC_AR_MODE_ID,0       # set ESA flag (mode 0)
         l       %r13,4f-.LPG0(%r13)
         b       0(%r13)
-        .align  4
+        .align  8
 4:      .long   startup_continue
-5:      .long   sched_clock_base_cc
+#endif
         .align  8
-6:      .long   0x7fffffff,0xffffffff
+5:      .long   0x7fffffff,0xffffffff
 
 #
 # params at 10400 (setup.h)
@@ -552,8 +540,4 @@ startup:basr	%r13,0			# get base
         .byte   "root=/dev/ram0 ro"
         .byte   0
 
-#ifdef CONFIG_64BIT
-#include "head64.S"
-#else
-#include "head31.S"
-#endif
+        .org    0x11000
diff --git a/arch/s390/kernel/head31.S b/arch/s390/kernel/head31.S
index 602b508cd4c4..1bbcc499d455 100644
--- a/arch/s390/kernel/head31.S
+++ b/arch/s390/kernel/head31.S
@@ -1,7 +1,7 @@
 /*
  * arch/s390/kernel/head31.S
  *
- * Copyright (C) IBM Corp. 2005,2006
+ * Copyright (C) IBM Corp. 2005,2010
  *
  *   Author(s): Hartmut Penner <hp@de.ibm.com>
  *              Martin Schwidefsky <schwidefsky@de.ibm.com>
@@ -10,13 +10,19 @@
  *
  */
 
-        .org    0x11000
+#include <linux/init.h>
+#include <asm/asm-offsets.h>
+#include <asm/thread_info.h>
+#include <asm/page.h>
 
+__HEAD
+        .globl  startup_continue
 startup_continue:
         basr    %r13,0                  # get base
 .LPG1:
 
-        mvi     __LC_AR_MODE_ID,0       # set ESA flag (mode 0)
+        l       %r1,.Lbase_cc-.LPG1(%r13)
+        mvc     0(8,%r1),__LC_LAST_UPDATE_CLOCK
         lctl    %c0,%c15,.Lctl-.LPG1(%r13) # load control registers
         l       %r12,.Lparmaddr-.LPG1(%r13) # pointer to parameter area
                                         # move IPL device to lowcore
@@ -69,10 +75,12 @@ startup_continue:
 .Lduald:.rept   8
         .long   0x80000000,0,0,0        # invalid access-list entries
         .endr
+.Lbase_cc:
+        .long   sched_clock_base_cc
 
-        .org    0x12000
         .globl  _ehead
 _ehead:
+
 #ifdef CONFIG_SHARED_KERNEL
         .org    0x100000
 #endif
diff --git a/arch/s390/kernel/head64.S b/arch/s390/kernel/head64.S
index d984a2a380c3..39580e768658 100644
--- a/arch/s390/kernel/head64.S
+++ b/arch/s390/kernel/head64.S
@@ -1,7 +1,7 @@
 /*
  * arch/s390/kernel/head64.S
  *
- * Copyright (C) IBM Corp. 1999,2006
+ * Copyright (C) IBM Corp. 1999,2010
  *
  *   Author(s): Hartmut Penner <hp@de.ibm.com>
  *              Martin Schwidefsky <schwidefsky@de.ibm.com>
@@ -10,80 +10,17 @@
  *
  */
 
-        .org    0x11000
+#include <linux/init.h>
+#include <asm/asm-offsets.h>
+#include <asm/thread_info.h>
+#include <asm/page.h>
 
+__HEAD
+        .globl  startup_continue
 startup_continue:
-        basr    %r13,0                  # get base
-.LPG1:  sll     %r13,1                  # remove high order bit
-        srl     %r13,1
-
-#ifdef CONFIG_ZFCPDUMP
-
-        # check if we have been ipled using zfcp dump:
-
-        tm      0xb9,0x01               # test if subchannel is enabled
-        jno     .nodump                 # subchannel disabled
-        l       %r1,0xb8
-        la      %r5,.Lipl_schib-.LPG1(%r13)
-        stsch   0(%r5)                  # get schib of subchannel
-        jne     .nodump                 # schib not available
-        tm      5(%r5),0x01             # devno valid?
-        jno     .nodump
-        tm      4(%r5),0x80             # qdio capable device?
-        jno     .nodump
-        l       %r2,20(%r0)             # address of ipl parameter block
-        lhi     %r3,0
-        ic      %r3,0x148(%r2)          # get opt field
-        chi     %r3,0x20                # load with dump?
-        jne     .nodump
-
-        # store all prefix registers in case of load with dump:
-
-        la      %r7,0                   # base register for 0 page
-        la      %r8,0                   # first cpu
-        l       %r11,.Lpref_arr_ptr-.LPG1(%r13) # address of prefix array
-        ahi     %r11,4                  # skip boot cpu
-        lr      %r12,%r11
-        ahi     %r12,(CONFIG_NR_CPUS*4) # end of prefix array
-        stap    .Lcurrent_cpu+2-.LPG1(%r13)     # store current cpu addr
-1:
-        cl      %r8,.Lcurrent_cpu-.LPG1(%r13)   # is ipl cpu ?
-        je      4f                              # if yes get next cpu
-2:
-        lr      %r9,%r7
-        sigp    %r9,%r8,0x9             # stop & store status of cpu
-        brc     8,3f                    # accepted
-        brc     4,4f                    # status stored: next cpu
-        brc     2,2b                    # busy:          try again
-        brc     1,4f                    # not op:        next cpu
-3:
-        mvc     0(4,%r11),264(%r7)      # copy prefix register to prefix array
-        ahi     %r11,4                  # next element in prefix array
-        clr     %r11,%r12
-        je      5f                      # no more space in prefix array
-4:
-        ahi     %r8,1                   # next cpu (r8 += 1)
-        chi     %r8,MAX_CPU_ADDRESS     # is last possible cpu ?
-        jle     1b                      # jump if not last cpu
-5:
-        lhi     %r1,2                   # mode 2 = esame (dump)
-        j       6f
-        .align 4
-.Lipl_schib:
-        .rept 13
-        .long 0
-        .endr
-.nodump:
-        lhi     %r1,1                   # mode 1 = esame (normal ipl)
-6:
-#else
-        lhi     %r1,1                   # mode 1 = esame (normal ipl)
-#endif /* CONFIG_ZFCPDUMP */
-        mvi     __LC_AR_MODE_ID,1       # set esame flag
-        slr     %r0,%r0                 # set cpuid to zero
-        sigp    %r1,%r0,0x12            # switch to esame mode
-        sam64                           # switch to 64 bit mode
-        llgfr   %r13,%r13               # clear high-order half of base reg
+        larl    %r1,sched_clock_base_cc
+        mvc     0(8,%r1),__LC_LAST_UPDATE_CLOCK
+        larl    %r13,.LPG1              # get base
         lmh     %r0,%r15,.Lzero64-.LPG1(%r13)   # clear high-order half
         lctlg   %c0,%c15,.Lctl-.LPG1(%r13)      # load control registers
         lg      %r12,.Lparmaddr-.LPG1(%r13)     # pointer to parameter area
@@ -108,6 +45,7 @@ startup_continue:
         lpswe   .Lentry-.LPG1(13)       # jump to _stext in primary-space,
                                         # virtual and never return ...
         .align  16
+.LPG1:
 .Lentry:.quad   0x0000000180000000,_stext
 .Lctl:  .quad   0x04350002              # cr0: various things
         .quad   0                       # cr1: primary space segment table
@@ -130,12 +68,6 @@ startup_continue:
 .Lscan2g:.quad  0x80000000 + 0x20000 - 8        # 2GB + 128K - 8
 .Lnop:  .long   0x07000700
 .Lzero64:.fill  16,4,0x0
-#ifdef CONFIG_ZFCPDUMP
-.Lcurrent_cpu:
-        .long 0x0
-.Lpref_arr_ptr:
-        .long zfcpdump_prefix_array
-#endif /* CONFIG_ZFCPDUMP */
 .Lparmaddr:
         .quad   PARMAREA
         .align  64
@@ -146,9 +78,9 @@ startup_continue:
         .long   0x80000000,0,0,0        # invalid access-list entries
         .endr
 
-        .org    0x12000
         .globl  _ehead
 _ehead:
+
 #ifdef CONFIG_SHARED_KERNEL
         .org    0x100000
 #endif
diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c
index 4d73296fed74..7eedbbcb54aa 100644
--- a/arch/s390/kernel/ipl.c
+++ b/arch/s390/kernel/ipl.c
@@ -553,7 +553,7 @@ out:
         return rc;
 }
 
-static void ipl_run(struct shutdown_trigger *trigger)
+static void __ipl_run(void *unused)
 {
         diag308(DIAG308_IPL, NULL);
         if (MACHINE_IS_VM)
@@ -562,6 +562,11 @@ static void ipl_run(struct shutdown_trigger *trigger)
                 reipl_ccw_dev(&ipl_info.data.ccw.dev_id);
 }
 
+static void ipl_run(struct shutdown_trigger *trigger)
+{
+        smp_switch_to_ipl_cpu(__ipl_run, NULL);
+}
+
 static int __init ipl_init(void)
 {
         int rc;
@@ -1039,7 +1044,7 @@ static void get_ipl_string(char *dst, struct ipl_parameter_block *ipb,
                 sprintf(dst + pos, " PARM %s", vmparm);
 }
 
-static void reipl_run(struct shutdown_trigger *trigger)
+static void __reipl_run(void *unused)
 {
         struct ccw_dev_id devid;
         static char buf[128];
@@ -1087,6 +1092,11 @@ static void reipl_run(struct shutdown_trigger *trigger)
         disabled_wait((unsigned long) __builtin_return_address(0));
 }
 
+static void reipl_run(struct shutdown_trigger *trigger)
+{
+        smp_switch_to_ipl_cpu(__reipl_run, NULL);
+}
+
 static void reipl_block_ccw_init(struct ipl_parameter_block *ipb)
 {
         ipb->hdr.len = IPL_PARM_BLK_CCW_LEN;
@@ -1369,20 +1379,18 @@ static struct kobj_attribute dump_type_attr =
 
 static struct kset *dump_kset;
 
-static void dump_run(struct shutdown_trigger *trigger)
+static void __dump_run(void *unused)
 {
         struct ccw_dev_id devid;
         static char buf[100];
 
         switch (dump_method) {
         case DUMP_METHOD_CCW_CIO:
-                smp_send_stop();
                 devid.devno = dump_block_ccw->ipl_info.ccw.devno;
                 devid.ssid  = 0;
                 reipl_ccw_dev(&devid);
                 break;
         case DUMP_METHOD_CCW_VM:
-                smp_send_stop();
                 sprintf(buf, "STORE STATUS");
                 __cpcmd(buf, NULL, 0, NULL);
                 sprintf(buf, "IPL %X", dump_block_ccw->ipl_info.ccw.devno);
@@ -1396,10 +1404,17 @@ static void dump_run(struct shutdown_trigger *trigger)
                 diag308(DIAG308_SET, dump_block_fcp);
                 diag308(DIAG308_DUMP, NULL);
                 break;
-        case DUMP_METHOD_NONE:
-                return;
+        default:
+                break;
         }
-        printk(KERN_EMERG "Dump failed!\n");
+}
+
+static void dump_run(struct shutdown_trigger *trigger)
+{
+        if (dump_method == DUMP_METHOD_NONE)
+                return;
+        smp_send_stop();
+        smp_switch_to_ipl_cpu(__dump_run, NULL);
 }
 
 static int __init dump_ccw_init(void)
@@ -1577,7 +1592,7 @@ static void vmcmd_run(struct shutdown_trigger *trigger)
 static int vmcmd_init(void)
 {
         if (!MACHINE_IS_VM)
-                return -ENOTSUPP;
+                return -EOPNOTSUPP;
         vmcmd_kset = kset_create_and_add("vmcmd", NULL, firmware_kobj);
         if (!vmcmd_kset)
                 return -ENOMEM;
@@ -1595,7 +1610,7 @@ static void stop_run(struct shutdown_trigger *trigger)
 {
         if (strcmp(trigger->name, ON_PANIC_STR) == 0)
                 disabled_wait((unsigned long) __builtin_return_address(0));
-        while (signal_processor(smp_processor_id(), sigp_stop) == sigp_busy)
+        while (sigp(smp_processor_id(), sigp_stop) == sigp_busy)
                 cpu_relax();
         for (;;);
 }
@@ -1902,7 +1917,6 @@ void __init ipl_update_parameters(void)
 void __init ipl_save_parameters(void)
 {
         struct cio_iplinfo iplinfo;
-        unsigned int *ipl_ptr;
         void *src, *dst;
 
         if (cio_get_iplinfo(&iplinfo))
@@ -1913,11 +1927,10 @@ void __init ipl_save_parameters(void)
         if (!iplinfo.is_qdio)
                 return;
         ipl_flags |= IPL_PARMBLOCK_VALID;
-        ipl_ptr = (unsigned int *)__LC_IPL_PARMBLOCK_PTR;
-        src = (void *)(unsigned long)*ipl_ptr;
+        src = (void *)(unsigned long)S390_lowcore.ipl_parmblock_ptr;
         dst = (void *)IPL_PARMBLOCK_ORIGIN;
         memmove(dst, src, PAGE_SIZE);
-        *ipl_ptr = IPL_PARMBLOCK_ORIGIN;
+        S390_lowcore.ipl_parmblock_ptr = IPL_PARMBLOCK_ORIGIN;
 }
 
 static LIST_HEAD(rcall);
diff --git a/arch/s390/kernel/machine_kexec.c b/arch/s390/kernel/machine_kexec.c
index 131d7ee8b416..a922d51df6bf 100644
--- a/arch/s390/kernel/machine_kexec.c
+++ b/arch/s390/kernel/machine_kexec.c
@@ -54,11 +54,11 @@ void machine_shutdown(void)
 {
 }
 
-void machine_kexec(struct kimage *image)
+static void __machine_kexec(void *data)
 {
         relocate_kernel_t data_mover;
+        struct kimage *image = data;
 
-        smp_send_stop();
         pfault_fini();
         s390_reset_system();
 
@@ -68,3 +68,9 @@ void machine_kexec(struct kimage *image)
         (*data_mover)(&image->head, image->start);
         for (;;);
 }
+
+void machine_kexec(struct kimage *image)
+{
+        smp_send_stop();
+        smp_switch_to_ipl_cpu(__machine_kexec, image);
+}
diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c
index 7cf464234419..33fdc5a79764 100644
--- a/arch/s390/kernel/ptrace.c
+++ b/arch/s390/kernel/ptrace.c
@@ -992,3 +992,61 @@ const struct user_regset_view *task_user_regset_view(struct task_struct *task)
 #endif
         return &user_s390_view;
 }
+
+static const char *gpr_names[NUM_GPRS] = {
+        "r0", "r1",  "r2",  "r3",  "r4",  "r5",  "r6",  "r7",
+        "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
+};
+
+unsigned long regs_get_register(struct pt_regs *regs, unsigned int offset)
+{
+        if (offset >= NUM_GPRS)
+                return 0;
+        return regs->gprs[offset];
+}
+
+int regs_query_register_offset(const char *name)
+{
+        unsigned long offset;
+
+        if (!name || *name != 'r')
+                return -EINVAL;
+        if (strict_strtoul(name + 1, 10, &offset))
+                return -EINVAL;
+        if (offset >= NUM_GPRS)
+                return -EINVAL;
+        return offset;
+}
+
+const char *regs_query_register_name(unsigned int offset)
+{
+        if (offset >= NUM_GPRS)
+                return NULL;
+        return gpr_names[offset];
+}
+
+static int regs_within_kernel_stack(struct pt_regs *regs, unsigned long addr)
+{
+        unsigned long ksp = kernel_stack_pointer(regs);
+
+        return (addr & ~(THREAD_SIZE - 1)) == (ksp & ~(THREAD_SIZE - 1));
+}
+
+/**
+ * regs_get_kernel_stack_nth() - get Nth entry of the stack
+ * @regs:pt_regs which contains kernel stack pointer.
+ * @n:stack entry number.
+ *
+ * regs_get_kernel_stack_nth() returns @n th entry of the kernel stack which
+ * is specifined by @regs. If the @n th entry is NOT in the kernel stack,
+ * this returns 0.
+ */
+unsigned long regs_get_kernel_stack_nth(struct pt_regs *regs, unsigned int n)
+{
+        unsigned long addr;
+
+        addr = kernel_stack_pointer(regs) + n * sizeof(long);
+        if (!regs_within_kernel_stack(regs, addr))
+                return 0;
+        return *(unsigned long *)addr;
+}
diff --git a/arch/s390/kernel/reipl.S b/arch/s390/kernel/reipl.S
index 2f481cc3d1c9..cb899d9f8505 100644
--- a/arch/s390/kernel/reipl.S
+++ b/arch/s390/kernel/reipl.S
@@ -6,7 +6,7 @@
  *    Author(s): Holger Smolinski (Holger.Smolinski@de.ibm.com)
  */
 
-#include <asm/lowcore.h>
+#include <asm/asm-offsets.h>
 
 #
 # do_reipl_asm
diff --git a/arch/s390/kernel/reipl64.S b/arch/s390/kernel/reipl64.S
index 774147824c3d..5e73dee63baa 100644
--- a/arch/s390/kernel/reipl64.S
+++ b/arch/s390/kernel/reipl64.S
@@ -4,7 +4,7 @@
  *               Denis Joseph Barrow,
  */
 
-#include <asm/lowcore.h>
+#include <asm/asm-offsets.h>
 
 #
 # do_reipl_asm
diff --git a/arch/s390/kernel/sclp.S b/arch/s390/kernel/sclp.S
index e27ca63076d1..27af3bf3a009 100644
--- a/arch/s390/kernel/sclp.S
+++ b/arch/s390/kernel/sclp.S
@@ -9,8 +9,10 @@
  */
 
 LC_EXT_NEW_PSW          = 0x58                  # addr of ext int handler
+LC_EXT_NEW_PSW_64       = 0x1b0                 # addr of ext int handler 64 bit
 LC_EXT_INT_PARAM        = 0x80                  # addr of ext int parameter
 LC_EXT_INT_CODE         = 0x86                  # addr of ext int code
+LC_AR_MODE_ID           = 0xa3
 
 #
 # Subroutine which waits synchronously until either an external interruption
@@ -30,8 +32,16 @@ _sclp_wait_int:
 .LbaseS1:
         ahi     %r15,-96                        # create stack frame
         la      %r8,LC_EXT_NEW_PSW              # register int handler
-        mvc     .LoldpswS1-.LbaseS1(8,%r13),0(%r8)
-        mvc     0(8,%r8),.LextpswS1-.LbaseS1(%r13)
+        la      %r9,.LextpswS1-.LbaseS1(%r13)
+#ifdef CONFIG_64BIT
+        tm      LC_AR_MODE_ID,1
+        jno     .Lesa1
+        la      %r8,LC_EXT_NEW_PSW_64           # register int handler 64 bit
+        la      %r9,.LextpswS1_64-.LbaseS1(%r13)
+.Lesa1:
+#endif
+        mvc     .LoldpswS1-.LbaseS1(16,%r13),0(%r8)
+        mvc     0(16,%r8),0(%r9)
         lhi     %r6,0x0200                      # cr mask for ext int (cr0.54)
         ltr     %r2,%r2
         jz      .LsetctS1
@@ -64,15 +74,19 @@ _sclp_wait_int:
 .LtimeoutS1:
         lctl    %c0,%c0,.LctlS1-.LbaseS1(%r13)  # restore interrupt setting
         # restore old handler
-        mvc     0(8,%r8),.LoldpswS1-.LbaseS1(%r13)
+        mvc     0(16,%r8),.LoldpswS1-.LbaseS1(%r13)
         lm      %r6,%r15,120(%r15)              # restore registers
         br      %r14                            # return to caller
 
         .align  8
 .LoldpswS1:
-        .long   0, 0                            # old ext int PSW
+        .long   0, 0, 0, 0                      # old ext int PSW
 .LextpswS1:
         .long   0x00080000, 0x80000000+.LwaitS1 # PSW to handle ext int
+#ifdef CONFIG_64BIT
+.LextpswS1_64:
+        .quad   0x0000000180000000, .LwaitS1    # PSW to handle ext int, 64 bit
+#endif
 .LwaitpswS1:
         .long   0x010a0000, 0x00000000+.LloopS1 # PSW to wait for ext int
 .LtimeS1:
@@ -250,6 +264,13 @@ _sclp_print:
 _sclp_print_early:
         stm     %r6,%r15,24(%r15)               # save registers
         ahi     %r15,-96                        # create stack frame
+#ifdef CONFIG_64BIT
+        tm      LC_AR_MODE_ID,1
+        jno     .Lesa2
+        ahi     %r15,-80
+        stmh    %r6,%r15,96(%r15)               # store upper register halves
+.Lesa2:
+#endif
         lr      %r10,%r2                        # save string pointer
         lhi     %r2,0
         bras    %r14,_sclp_setup                # enable console
@@ -262,6 +283,13 @@ _sclp_print_early:
         lhi     %r2,1
         bras    %r14,_sclp_setup                # disable console
 .LendS5:
+#ifdef CONFIG_64BIT
+        tm      LC_AR_MODE_ID,1
+        jno     .Lesa3
+        lmh     %r6,%r15,96(%r15)               # store upper register halves
+        ahi     %r15,80
+.Lesa3:
+#endif
         lm      %r6,%r15,120(%r15)              # restore registers
         br      %r14
 
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 8d8957b38ab3..77a63ae419f0 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -396,15 +396,12 @@ static void __init
 setup_lowcore(void)
 {
         struct _lowcore *lc;
-        int lc_pages;
 
         /*
          * Setup lowcore for boot cpu
          */
-        lc_pages = sizeof(void *) == 8 ? 2 : 1;
-        lc = (struct _lowcore *)
-                __alloc_bootmem(lc_pages * PAGE_SIZE, lc_pages * PAGE_SIZE, 0);
-        memset(lc, 0, lc_pages * PAGE_SIZE);
+        BUILD_BUG_ON(sizeof(struct _lowcore) != LC_PAGES * 4096);
+        lc = __alloc_bootmem(LC_PAGES * PAGE_SIZE, LC_PAGES * PAGE_SIZE, 0);
         lc->restart_psw.mask = PSW_BASE_BITS | PSW_DEFAULT_KEY;
         lc->restart_psw.addr =
                 PSW_ADDR_AMODE | (unsigned long) restart_int_handler;
@@ -804,7 +801,7 @@ setup_arch(char **cmdline_p)
         if (MACHINE_IS_VM)
                 pr_info("Linux is running as a z/VM "
                         "guest operating system in 31-bit mode\n");
-        else
+        else if (MACHINE_IS_LPAR)
                 pr_info("Linux is running natively in 31-bit mode\n");
         if (MACHINE_HAS_IEEE)
                 pr_info("The hardware system has IEEE compatible "
@@ -818,7 +815,7 @@ setup_arch(char **cmdline_p)
                         "guest operating system in 64-bit mode\n");
         else if (MACHINE_IS_KVM)
                 pr_info("Linux is running under KVM in 64-bit mode\n");
-        else
+        else if (MACHINE_IS_LPAR)
                 pr_info("Linux is running natively in 64-bit mode\n");
 #endif /* CONFIG_64BIT */
 
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 76a6fdd46c45..8b10127c00ad 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -36,6 +36,7 @@
 #include <linux/cpu.h>
 #include <linux/timex.h>
 #include <linux/bootmem.h>
+#include <asm/asm-offsets.h>
 #include <asm/ipl.h>
 #include <asm/setup.h>
 #include <asm/sigp.h>
@@ -53,7 +54,7 @@
 #include "entry.h"
 
 /* logical cpu to cpu address */
-int __cpu_logical_map[NR_CPUS];
+unsigned short __cpu_logical_map[NR_CPUS];
 
 static struct task_struct *current_set[NR_CPUS];
 
@@ -72,13 +73,13 @@ static int cpu_management;
 
 static DEFINE_PER_CPU(struct cpu, cpu_devices);
 
-static void smp_ext_bitcall(int, ec_bit_sig);
+static void smp_ext_bitcall(int, int);
 
-static int cpu_stopped(int cpu)
+static int raw_cpu_stopped(int cpu)
 {
-        __u32 status;
+        u32 status;
 
-        switch (signal_processor_ps(&status, 0, cpu, sigp_sense)) {
+        switch (raw_sigp_ps(&status, 0, cpu, sigp_sense)) {
         case sigp_status_stored:
                 /* Check for stopped and check stop state */
                 if (status & 0x50)
@@ -90,6 +91,44 @@ static int cpu_stopped(int cpu)
         return 0;
 }
 
+static inline int cpu_stopped(int cpu)
+{
+        return raw_cpu_stopped(cpu_logical_map(cpu));
+}
+
+void smp_switch_to_ipl_cpu(void (*func)(void *), void *data)
+{
+        struct _lowcore *lc, *current_lc;
+        struct stack_frame *sf;
+        struct pt_regs *regs;
+        unsigned long sp;
+
+        if (smp_processor_id() == 0)
+                func(data);
+        __load_psw_mask(PSW_BASE_BITS | PSW_DEFAULT_KEY);
+        /* Disable lowcore protection */
+        __ctl_clear_bit(0, 28);
+        current_lc = lowcore_ptr[smp_processor_id()];
+        lc = lowcore_ptr[0];
+        if (!lc)
+                lc = current_lc;
+        lc->restart_psw.mask = PSW_BASE_BITS | PSW_DEFAULT_KEY;
+        lc->restart_psw.addr = PSW_ADDR_AMODE | (unsigned long) smp_restart_cpu;
+        if (!cpu_online(0))
+                smp_switch_to_cpu(func, data, 0, stap(), __cpu_logical_map[0]);
+        while (sigp(0, sigp_stop_and_store_status) == sigp_busy)
+                cpu_relax();
+        sp = lc->panic_stack;
+        sp -= sizeof(struct pt_regs);
+        regs = (struct pt_regs *) sp;
+        memcpy(&regs->gprs, &current_lc->gpregs_save_area, sizeof(regs->gprs));
+        regs->psw = lc->psw_save_area;
+        sp -= STACK_FRAME_OVERHEAD;
+        sf = (struct stack_frame *) sp;
+        sf->back_chain = regs->gprs[15];
+        smp_switch_to_cpu(func, data, sp, stap(), __cpu_logical_map[0]);
+}
+
 void smp_send_stop(void)
 {
         int cpu, rc;
@@ -103,7 +142,7 @@ void smp_send_stop(void)
                 if (cpu == smp_processor_id())
                         continue;
                 do {
-                        rc = signal_processor(cpu, sigp_stop);
+                        rc = sigp(cpu, sigp_stop);
                 } while (rc == sigp_busy);
 
                 while (!cpu_stopped(cpu))
@@ -139,13 +178,13 @@ static void do_ext_call_interrupt(__u16 code)
  * Send an external call sigp to another cpu and return without waiting
  * for its completion.
  */
-static void smp_ext_bitcall(int cpu, ec_bit_sig sig)
+static void smp_ext_bitcall(int cpu, int sig)
 {
         /*
          * Set signaling bit in lowcore of target cpu and kick it
          */
         set_bit(sig, (unsigned long *) &lowcore_ptr[cpu]->ext_call_fast);
-        while (signal_processor(cpu, sigp_emergency_signal) == sigp_busy)
+        while (sigp(cpu, sigp_emergency_signal) == sigp_busy)
                 udelay(10);
 }
 
@@ -239,24 +278,8 @@ void smp_ctl_clear_bit(int cr, int bit)
 }
 EXPORT_SYMBOL(smp_ctl_clear_bit);
 
-/*
- * In early ipl state a temp. logically cpu number is needed, so the sigp
- * functions can be used to sense other cpus. Since NR_CPUS is >= 2 on
- * CONFIG_SMP and the ipl cpu is logical cpu 0, it must be 1.
- */
-#define CPU_INIT_NO     1
-
 #ifdef CONFIG_ZFCPDUMP
 
-/*
- * zfcpdump_prefix_array holds prefix registers for the following scenario:
- * 64 bit zfcpdump kernel and 31 bit kernel which is to be dumped. We have to
- * save its prefix registers, since they get lost, when switching from 31 bit
- * to 64 bit.
- */
-unsigned int zfcpdump_prefix_array[NR_CPUS + 1] \
-        __attribute__((__section__(".data")));
-
 static void __init smp_get_save_area(unsigned int cpu, unsigned int phy_cpu)
 {
         if (ipl_info.type != IPL_TYPE_FCP_DUMP)
@@ -266,21 +289,15 @@ static void __init smp_get_save_area(unsigned int cpu, unsigned int phy_cpu)
                            "the dump\n", cpu, NR_CPUS - 1);
                 return;
         }
-        zfcpdump_save_areas[cpu] = kmalloc(sizeof(union save_area), GFP_KERNEL);
-        __cpu_logical_map[CPU_INIT_NO] = (__u16) phy_cpu;
-        while (signal_processor(CPU_INIT_NO, sigp_stop_and_store_status) ==
-               sigp_busy)
+        zfcpdump_save_areas[cpu] = kmalloc(sizeof(struct save_area), GFP_KERNEL);
+        while (raw_sigp(phy_cpu, sigp_stop_and_store_status) == sigp_busy)
                 cpu_relax();
         memcpy(zfcpdump_save_areas[cpu],
                (void *)(unsigned long) store_prefix() + SAVE_AREA_BASE,
-               SAVE_AREA_SIZE);
-#ifdef CONFIG_64BIT
-        /* copy original prefix register */
-        zfcpdump_save_areas[cpu]->s390x.pref_reg = zfcpdump_prefix_array[cpu];
-#endif
+               sizeof(struct save_area));
 }
 
-union save_area *zfcpdump_save_areas[NR_CPUS + 1];
+struct save_area *zfcpdump_save_areas[NR_CPUS + 1];
 EXPORT_SYMBOL_GPL(zfcpdump_save_areas);
 
 #else
@@ -389,8 +406,7 @@ static void __init smp_detect_cpus(void)
                 for (cpu = 0; cpu <= MAX_CPU_ADDRESS; cpu++) {
                         if (cpu == boot_cpu_addr)
                                 continue;
-                        __cpu_logical_map[CPU_INIT_NO] = cpu;
-                        if (!cpu_stopped(CPU_INIT_NO))
+                        if (!raw_cpu_stopped(cpu))
                                 continue;
                         smp_get_save_area(c_cpus, cpu);
                         c_cpus++;
@@ -413,8 +429,7 @@ static void __init smp_detect_cpus(void)
                 cpu_addr = info->cpu[cpu].address;
                 if (cpu_addr == boot_cpu_addr)
                         continue;
-                __cpu_logical_map[CPU_INIT_NO] = cpu_addr;
-                if (!cpu_stopped(CPU_INIT_NO)) {
+                if (!raw_cpu_stopped(cpu_addr)) {
                         s_cpus++;
                         continue;
                 }
@@ -533,18 +548,18 @@ static void smp_free_lowcore(int cpu)
 /* Upping and downing of CPUs */
 int __cpuinit __cpu_up(unsigned int cpu)
 {
-        struct task_struct *idle;
         struct _lowcore *cpu_lowcore;
+        struct task_struct *idle;
         struct stack_frame *sf;
-        sigp_ccode ccode;
         u32 lowcore;
+        int ccode;
 
         if (smp_cpu_state[cpu] != CPU_STATE_CONFIGURED)
                 return -EIO;
         if (smp_alloc_lowcore(cpu))
                 return -ENOMEM;
         do {
-                ccode = signal_processor(cpu, sigp_initial_cpu_reset);
+                ccode = sigp(cpu, sigp_initial_cpu_reset);
                 if (ccode == sigp_busy)
                         udelay(10);
                 if (ccode == sigp_not_operational)
@@ -552,7 +567,7 @@ int __cpuinit __cpu_up(unsigned int cpu)
         } while (ccode == sigp_busy);
 
         lowcore = (u32)(unsigned long)lowcore_ptr[cpu];
-        while (signal_processor_p(lowcore, cpu, sigp_set_prefix) == sigp_busy)
+        while (sigp_p(lowcore, cpu, sigp_set_prefix) == sigp_busy)
                 udelay(10);
 
         idle = current_set[cpu];
@@ -578,7 +593,7 @@ int __cpuinit __cpu_up(unsigned int cpu)
         cpu_lowcore->ftrace_func = S390_lowcore.ftrace_func;
         eieio();
 
-        while (signal_processor(cpu, sigp_restart) == sigp_busy)
+        while (sigp(cpu, sigp_restart) == sigp_busy)
                 udelay(10);
 
         while (!cpu_online(cpu))
@@ -640,7 +655,7 @@ void __cpu_die(unsigned int cpu)
         /* Wait until target cpu is down */
         while (!cpu_stopped(cpu))
                 cpu_relax();
-        while (signal_processor_p(0, cpu, sigp_set_prefix) == sigp_busy)
+        while (sigp_p(0, cpu, sigp_set_prefix) == sigp_busy)
                 udelay(10);
         smp_free_lowcore(cpu);
         pr_info("Processor %d stopped\n", cpu);
@@ -649,7 +664,7 @@ void __cpu_die(unsigned int cpu)
 void cpu_die(void)
 {
         idle_task_exit();
-        while (signal_processor(smp_processor_id(), sigp_stop) == sigp_busy)
+        while (sigp(smp_processor_id(), sigp_stop) == sigp_busy)
                 cpu_relax();
         for (;;);
 }
@@ -765,7 +780,8 @@ static ssize_t cpu_configure_store(struct sys_device *dev,
         get_online_cpus();
         mutex_lock(&smp_cpu_state_mutex);
         rc = -EBUSY;
-        if (cpu_online(cpu))
+        /* disallow configuration changes of online cpus and cpu 0 */
+        if (cpu_online(cpu) || cpu == 0)
                 goto out;
         rc = 0;
         switch (val) {
diff --git a/arch/s390/kernel/switch_cpu.S b/arch/s390/kernel/switch_cpu.S
new file mode 100644
index 000000000000..469f11b574fa
--- /dev/null
+++ b/arch/s390/kernel/switch_cpu.S
@@ -0,0 +1,58 @@
+/*
+ * 31-bit switch cpu code
+ *
+ * Copyright IBM Corp. 2009
+ *
+ */
+
+#include <asm/asm-offsets.h>
+#include <asm/ptrace.h>
+
+# smp_switch_to_cpu switches to destination cpu and executes the passed function
+# Parameter: %r2 - function to call
+#            %r3 - function parameter
+#            %r4 - stack poiner
+#            %r5 - current cpu
+#            %r6 - destination cpu
+
+        .section .text
+        .align 4
+        .globl smp_switch_to_cpu
+smp_switch_to_cpu:
+        stm     %r6,%r15,__SF_GPRS(%r15)
+        lr      %r1,%r15
+        ahi     %r15,-STACK_FRAME_OVERHEAD
+        st      %r1,__SF_BACKCHAIN(%r15)
+        basr    %r13,0
+0:      la      %r1,.gprregs_addr-0b(%r13)
+        l       %r1,0(%r1)
+        stm     %r0,%r15,0(%r1)
+1:      sigp    %r0,%r6,__SIGP_RESTART  /* start destination CPU */
+        brc     2,1b                    /* busy, try again */
+2:      sigp    %r0,%r5,__SIGP_STOP     /* stop current CPU */
+        brc     2,2b                    /* busy, try again */
+3:      j       3b
+
+        .globl  smp_restart_cpu
+smp_restart_cpu:
+        basr    %r13,0
+0:      la      %r1,.gprregs_addr-0b(%r13)
+        l       %r1,0(%r1)
+        lm      %r0,%r15,0(%r1)
+1:      sigp    %r0,%r5,__SIGP_SENSE    /* Wait for calling CPU */
+        brc     10,1b                   /* busy, accepted (status 0), running */
+        tmll    %r0,0x40                /* Test if calling CPU is stopped */
+        jz      1b
+        ltr     %r4,%r4                 /* New stack ? */
+        jz      1f
+        lr      %r15,%r4
+1:      basr    %r14,%r2
+
+.gprregs_addr:
+        .long   .gprregs
+
+        .section .data,"aw",@progbits
+.gprregs:
+        .rept   16
+        .long   0
+        .endr
diff --git a/arch/s390/kernel/switch_cpu64.S b/arch/s390/kernel/switch_cpu64.S
new file mode 100644
index 000000000000..d94aacc898cb
--- /dev/null
+++ b/arch/s390/kernel/switch_cpu64.S
@@ -0,0 +1,51 @@
+/*
+ * 64-bit switch cpu code
+ *
+ * Copyright IBM Corp. 2009
+ *
+ */
+
+#include <asm/asm-offsets.h>
+#include <asm/ptrace.h>
+
+# smp_switch_to_cpu switches to destination cpu and executes the passed function
+# Parameter: %r2 - function to call
+#            %r3 - function parameter
+#            %r4 - stack poiner
+#            %r5 - current cpu
+#            %r6 - destination cpu
+
+        .section .text
+        .align 4
+        .globl smp_switch_to_cpu
+smp_switch_to_cpu:
+        stmg    %r6,%r15,__SF_GPRS(%r15)
+        lgr     %r1,%r15
+        aghi    %r15,-STACK_FRAME_OVERHEAD
+        stg     %r1,__SF_BACKCHAIN(%r15)
+        larl    %r1,.gprregs
+        stmg    %r0,%r15,0(%r1)
+1:      sigp    %r0,%r6,__SIGP_RESTART  /* start destination CPU */
+        brc     2,1b                    /* busy, try again */
+2:      sigp    %r0,%r5,__SIGP_STOP     /* stop current CPU */
+        brc     2,2b                    /* busy, try again */
+3:      j       3b
+
+        .globl  smp_restart_cpu
+smp_restart_cpu:
+        larl    %r1,.gprregs
+        lmg     %r0,%r15,0(%r1)
+1:      sigp    %r0,%r5,__SIGP_SENSE    /* Wait for calling CPU */
+        brc     10,1b                   /* busy, accepted (status 0), running */
+        tmll    %r0,0x40                /* Test if calling CPU is stopped */
+        jz      1b
+        ltgr    %r4,%r4                 /* New stack ? */
+        jz      1f
+        lgr     %r15,%r4
+1:      basr    %r14,%r2
+
+        .section .data,"aw",@progbits
+.gprregs:
+        .rept   16
+        .quad   0
+        .endr
diff --git a/arch/s390/kernel/swsusp_asm64.S b/arch/s390/kernel/swsusp_asm64.S
index 0c26cc1898ec..b354427e03b7 100644
--- a/arch/s390/kernel/swsusp_asm64.S
+++ b/arch/s390/kernel/swsusp_asm64.S
@@ -176,7 +176,7 @@ pgm_check_entry:
         cgr     %r1,%r2
         je      restore_registers               /* r1 = r2 -> nothing to do */
         larl    %r4,.Lrestart_suspend_psw       /* Set new restart PSW */
-        mvc     __LC_RESTART_PSW(16,%r0),0(%r4)
+        mvc     __LC_RST_NEW_PSW(16,%r0),0(%r4)
 3:
         sigp    %r9,%r1,__SIGP_INITIAL_CPU_RESET
         brc     8,4f    /* accepted */
diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
index 65065ac48ed3..a8f93f1705ad 100644
--- a/arch/s390/kernel/time.c
+++ b/arch/s390/kernel/time.c
@@ -51,14 +51,6 @@
 #define USECS_PER_JIFFY     ((unsigned long) 1000000/HZ)
 #define CLK_TICKS_PER_JIFFY ((unsigned long) USECS_PER_JIFFY << 12)
 
-/*
- * Create a small time difference between the timer interrupts
- * on the different cpus to avoid lock contention.
- */
-#define CPU_DEVIATION       (smp_processor_id() << 12)
-
-#define TICK_SIZE tick
-
 u64 sched_clock_base_cc = -1;   /* Force to data section. */
 EXPORT_SYMBOL_GPL(sched_clock_base_cc);
 
diff --git a/arch/s390/kernel/vdso.c b/arch/s390/kernel/vdso.c
index 5f99e66c51c3..6bc9c197aa91 100644
--- a/arch/s390/kernel/vdso.c
+++ b/arch/s390/kernel/vdso.c
@@ -23,6 +23,7 @@
 #include <linux/security.h>
 #include <linux/bootmem.h>
 #include <linux/compat.h>
+#include <asm/asm-offsets.h>
 #include <asm/pgtable.h>
 #include <asm/system.h>
 #include <asm/processor.h>
diff --git a/arch/s390/kvm/Kconfig b/arch/s390/kvm/Kconfig
index 6ee55ae84ce2..a7251580891c 100644
--- a/arch/s390/kvm/Kconfig
+++ b/arch/s390/kvm/Kconfig
@@ -35,6 +35,7 @@ config KVM
 
 # OK, it's a little counter-intuitive to do this, but it puts it neatly under
 # the virtualization menu.
+source drivers/vhost/Kconfig
 source drivers/virtio/Kconfig
 
 endif # VIRTUALIZATION
diff --git a/arch/s390/kvm/diag.c b/arch/s390/kvm/diag.c
index 8300309698fa..9e4c84187cf5 100644
--- a/arch/s390/kvm/diag.c
+++ b/arch/s390/kvm/diag.c
@@ -39,7 +39,7 @@ static int __diag_ipl_functions(struct kvm_vcpu *vcpu)
                 vcpu->run->s390_reset_flags = 0;
                 break;
         default:
-                return -ENOTSUPP;
+                return -EOPNOTSUPP;
         }
 
         atomic_clear_mask(CPUSTAT_RUNNING, &vcpu->arch.sie_block->cpuflags);
@@ -62,6 +62,6 @@ int kvm_s390_handle_diag(struct kvm_vcpu *vcpu)
         case 0x308:
                 return __diag_ipl_functions(vcpu);
         default:
-                return -ENOTSUPP;
+                return -EOPNOTSUPP;
         }
 }
diff --git a/arch/s390/kvm/intercept.c b/arch/s390/kvm/intercept.c
index b40096494e46..3ddc30895e31 100644
--- a/arch/s390/kvm/intercept.c
+++ b/arch/s390/kvm/intercept.c
@@ -32,7 +32,7 @@ static int handle_lctlg(struct kvm_vcpu *vcpu)
 
         vcpu->stat.instruction_lctlg++;
         if ((vcpu->arch.sie_block->ipb & 0xff) != 0x2f)
-                return -ENOTSUPP;
+                return -EOPNOTSUPP;
 
         useraddr = disp2;
         if (base2)
@@ -138,7 +138,7 @@ static int handle_stop(struct kvm_vcpu *vcpu)
                 rc = __kvm_s390_vcpu_store_status(vcpu,
                                                   KVM_S390_STORE_STATUS_NOADDR);
                 if (rc >= 0)
-                        rc = -ENOTSUPP;
+                        rc = -EOPNOTSUPP;
         }
 
         if (vcpu->arch.local_int.action_bits & ACTION_RELOADVCPU_ON_STOP) {
@@ -150,7 +150,7 @@ static int handle_stop(struct kvm_vcpu *vcpu)
         if (vcpu->arch.local_int.action_bits & ACTION_STOP_ON_STOP) {
                 vcpu->arch.local_int.action_bits &= ~ACTION_STOP_ON_STOP;
                 VCPU_EVENT(vcpu, 3, "%s", "cpu stopped");
-                rc = -ENOTSUPP;
+                rc = -EOPNOTSUPP;
         }
 
         spin_unlock_bh(&vcpu->arch.local_int.lock);
@@ -171,9 +171,9 @@ static int handle_validity(struct kvm_vcpu *vcpu)
                          2*PAGE_SIZE);
                 if (rc)
                         /* user will receive sigsegv, exit to user */
-                        rc = -ENOTSUPP;
+                        rc = -EOPNOTSUPP;
         } else
-                rc = -ENOTSUPP;
+                rc = -EOPNOTSUPP;
 
         if (rc)
                 VCPU_EVENT(vcpu, 2, "unhandled validity intercept code %d",
@@ -189,7 +189,7 @@ static int handle_instruction(struct kvm_vcpu *vcpu)
         handler = instruction_handlers[vcpu->arch.sie_block->ipa >> 8];
         if (handler)
                 return handler(vcpu);
-        return -ENOTSUPP;
+        return -EOPNOTSUPP;
 }
 
 static int handle_prog(struct kvm_vcpu *vcpu)
@@ -206,7 +206,7 @@ static int handle_instruction_and_prog(struct kvm_vcpu *vcpu)
         rc = handle_instruction(vcpu);
         rc2 = handle_prog(vcpu);
 
-        if (rc == -ENOTSUPP)
+        if (rc == -EOPNOTSUPP)
                 vcpu->arch.sie_block->icptcode = 0x04;
         if (rc)
                 return rc;
@@ -231,9 +231,9 @@ int kvm_handle_sie_intercept(struct kvm_vcpu *vcpu)
         u8 code = vcpu->arch.sie_block->icptcode;
 
         if (code & 3 || (code >> 2) >= ARRAY_SIZE(intercept_funcs))
-                return -ENOTSUPP;
+                return -EOPNOTSUPP;
         func = intercept_funcs[code >> 2];
         if (func)
                 return func(vcpu);
-        return -ENOTSUPP;
+        return -EOPNOTSUPP;
 }
diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c
index 43486c2408e1..834774d8d5f3 100644
--- a/arch/s390/kvm/interrupt.c
+++ b/arch/s390/kvm/interrupt.c
@@ -10,12 +10,12 @@
  *    Author(s): Carsten Otte <cotte@de.ibm.com>
  */
 
-#include <asm/lowcore.h>
-#include <asm/uaccess.h>
-#include <linux/hrtimer.h>
 #include <linux/interrupt.h>
 #include <linux/kvm_host.h>
+#include <linux/hrtimer.h>
 #include <linux/signal.h>
+#include <asm/asm-offsets.h>
+#include <asm/uaccess.h>
 #include "kvm-s390.h"
 #include "gaccess.h"
 
@@ -187,8 +187,8 @@ static void __do_deliver_interrupt(struct kvm_vcpu *vcpu,
                 if (rc == -EFAULT)
                         exception = 1;
 
-                rc = put_guest_u64(vcpu, __LC_PFAULT_INTPARM,
-                        inti->ext.ext_params2);
+                rc = put_guest_u64(vcpu, __LC_EXT_PARAMS2,
+                                   inti->ext.ext_params2);
                 if (rc == -EFAULT)
                         exception = 1;
                 break;
@@ -342,7 +342,7 @@ int kvm_s390_handle_wait(struct kvm_vcpu *vcpu)
         if (psw_interrupts_disabled(vcpu)) {
                 VCPU_EVENT(vcpu, 3, "%s", "disabled wait");
                 __unset_cpu_idle(vcpu);
-                return -ENOTSUPP; /* disabled wait */
+                return -EOPNOTSUPP; /* disabled wait */
         }
 
         if (psw_extint_disabled(vcpu) ||
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index f8bcaefd7d34..3fa0a10e4668 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -23,6 +23,7 @@
 #include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/timer.h>
+#include <asm/asm-offsets.h>
 #include <asm/lowcore.h>
 #include <asm/pgtable.h>
 #include <asm/nmi.h>
@@ -543,7 +544,7 @@ rerun_vcpu:
                 rc = -EINTR;
         }
 
-        if (rc == -ENOTSUPP) {
+        if (rc == -EOPNOTSUPP) {
                 /* intercept cannot be handled in-kernel, prepare kvm-run */
                 kvm_run->exit_reason         = KVM_EXIT_S390_SIEIC;
                 kvm_run->s390_sieic.icptcode = vcpu->arch.sie_block->icptcode;
@@ -603,45 +604,45 @@ int __kvm_s390_vcpu_store_status(struct kvm_vcpu *vcpu, unsigned long addr)
         } else
                 prefix = 0;
 
-        if (__guestcopy(vcpu, addr + offsetof(struct save_area_s390x, fp_regs),
+        if (__guestcopy(vcpu, addr + offsetof(struct save_area, fp_regs),
                         vcpu->arch.guest_fpregs.fprs, 128, prefix))
                 return -EFAULT;
 
-        if (__guestcopy(vcpu, addr + offsetof(struct save_area_s390x, gp_regs),
+        if (__guestcopy(vcpu, addr + offsetof(struct save_area, gp_regs),
                         vcpu->arch.guest_gprs, 128, prefix))
                 return -EFAULT;
 
-        if (__guestcopy(vcpu, addr + offsetof(struct save_area_s390x, psw),
+        if (__guestcopy(vcpu, addr + offsetof(struct save_area, psw),
                         &vcpu->arch.sie_block->gpsw, 16, prefix))
                 return -EFAULT;
 
-        if (__guestcopy(vcpu, addr + offsetof(struct save_area_s390x, pref_reg),
+        if (__guestcopy(vcpu, addr + offsetof(struct save_area, pref_reg),
                         &vcpu->arch.sie_block->prefix, 4, prefix))
                 return -EFAULT;
 
         if (__guestcopy(vcpu,
-                        addr + offsetof(struct save_area_s390x, fp_ctrl_reg),
+                        addr + offsetof(struct save_area, fp_ctrl_reg),
                         &vcpu->arch.guest_fpregs.fpc, 4, prefix))
                 return -EFAULT;
 
-        if (__guestcopy(vcpu, addr + offsetof(struct save_area_s390x, tod_reg),
+        if (__guestcopy(vcpu, addr + offsetof(struct save_area, tod_reg),
                         &vcpu->arch.sie_block->todpr, 4, prefix))
                 return -EFAULT;
 
-        if (__guestcopy(vcpu, addr + offsetof(struct save_area_s390x, timer),
+        if (__guestcopy(vcpu, addr + offsetof(struct save_area, timer),
                         &vcpu->arch.sie_block->cputm, 8, prefix))
                 return -EFAULT;
 
-        if (__guestcopy(vcpu, addr + offsetof(struct save_area_s390x, clk_cmp),
+        if (__guestcopy(vcpu, addr + offsetof(struct save_area, clk_cmp),
                         &vcpu->arch.sie_block->ckc, 8, prefix))
                 return -EFAULT;
 
-        if (__guestcopy(vcpu, addr + offsetof(struct save_area_s390x, acc_regs),
+        if (__guestcopy(vcpu, addr + offsetof(struct save_area, acc_regs),
                         &vcpu->arch.guest_acrs, 64, prefix))
                 return -EFAULT;
 
         if (__guestcopy(vcpu,
-                        addr + offsetof(struct save_area_s390x, ctrl_regs),
+                        addr + offsetof(struct save_area, ctrl_regs),
                         &vcpu->arch.sie_block->gcr, 128, prefix))
                 return -EFAULT;
         return 0;
diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index d426aac8095d..28c55677eb39 100644
--- a/arch/s390/kvm/priv.c
+++ b/arch/s390/kvm/priv.c
@@ -323,5 +323,5 @@ int kvm_s390_handle_b2(struct kvm_vcpu *vcpu)
                 else
                         return handler(vcpu);
         }
-        return -ENOTSUPP;
+        return -EOPNOTSUPP;
 }
diff --git a/arch/s390/kvm/sigp.c b/arch/s390/kvm/sigp.c
index 15ee1111de58..241a48459b66 100644
--- a/arch/s390/kvm/sigp.c
+++ b/arch/s390/kvm/sigp.c
@@ -172,7 +172,7 @@ static int __sigp_set_arch(struct kvm_vcpu *vcpu, u32 parameter)
                 rc = 0; /* order accepted */
                 break;
         default:
-                rc = -ENOTSUPP;
+                rc = -EOPNOTSUPP;
         }
         return rc;
 }
@@ -293,7 +293,7 @@ int kvm_s390_handle_sigp(struct kvm_vcpu *vcpu)
                 vcpu->stat.instruction_sigp_restart++;
                 /* user space must know about restart */
         default:
-                return -ENOTSUPP;
+                return -EOPNOTSUPP;
         }
 
         if (rc < 0)
diff --git a/arch/s390/lib/Makefile b/arch/s390/lib/Makefile
index 97975ec7a274..cd54a1c352af 100644
--- a/arch/s390/lib/Makefile
+++ b/arch/s390/lib/Makefile
@@ -2,7 +2,7 @@
 # Makefile for s390-specific library files..
 #
 
-lib-y += delay.o string.o uaccess_std.o uaccess_pt.o
+lib-y += delay.o string.o uaccess_std.o uaccess_pt.o usercopy.o
 obj-$(CONFIG_32BIT) += div64.o qrnnd.o ucmpdi2.o
 lib-$(CONFIG_64BIT) += uaccess_mvcos.o
 lib-$(CONFIG_SMP) += spinlock.o
diff --git a/arch/s390/lib/spinlock.c b/arch/s390/lib/spinlock.c
index cff327f109a8..91754ffb9203 100644
--- a/arch/s390/lib/spinlock.c
+++ b/arch/s390/lib/spinlock.c
@@ -43,16 +43,24 @@ void arch_spin_lock_wait(arch_spinlock_t *lp)
 {
         int count = spin_retry;
         unsigned int cpu = ~smp_processor_id();
+        unsigned int owner;
 
         while (1) {
-                if (count-- <= 0) {
-                        unsigned int owner = lp->owner_cpu;
-                        if (owner != 0)
-                                _raw_yield_cpu(~owner);
-                        count = spin_retry;
+                owner = lp->owner_cpu;
+                if (!owner || smp_vcpu_scheduled(~owner)) {
+                        for (count = spin_retry; count > 0; count--) {
+                                if (arch_spin_is_locked(lp))
+                                        continue;
+                                if (_raw_compare_and_swap(&lp->owner_cpu, 0,
+                                                          cpu) == 0)
+                                        return;
+                        }
+                        if (MACHINE_IS_LPAR)
+                                continue;
                 }
-                if (arch_spin_is_locked(lp))
-                        continue;
+                owner = lp->owner_cpu;
+                if (owner)
+                        _raw_yield_cpu(~owner);
                 if (_raw_compare_and_swap(&lp->owner_cpu, 0, cpu) == 0)
                         return;
         }
@@ -63,17 +71,27 @@ void arch_spin_lock_wait_flags(arch_spinlock_t *lp, unsigned long flags)
 {
         int count = spin_retry;
         unsigned int cpu = ~smp_processor_id();
+        unsigned int owner;
 
         local_irq_restore(flags);
         while (1) {
-                if (count-- <= 0) {
-                        unsigned int owner = lp->owner_cpu;
-                        if (owner != 0)
-                                _raw_yield_cpu(~owner);
-                        count = spin_retry;
+                owner = lp->owner_cpu;
+                if (!owner || smp_vcpu_scheduled(~owner)) {
+                        for (count = spin_retry; count > 0; count--) {
+                                if (arch_spin_is_locked(lp))
+                                        continue;
+                                local_irq_disable();
+                                if (_raw_compare_and_swap(&lp->owner_cpu, 0,
+                                                          cpu) == 0)
+                                        return;
+                                local_irq_restore(flags);
+                        }
+                        if (MACHINE_IS_LPAR)
+                                continue;
                 }
-                if (arch_spin_is_locked(lp))
-                        continue;
+                owner = lp->owner_cpu;
+                if (owner)
+                        _raw_yield_cpu(~owner);
                 local_irq_disable();
                 if (_raw_compare_and_swap(&lp->owner_cpu, 0, cpu) == 0)
                         return;
@@ -100,8 +118,11 @@ EXPORT_SYMBOL(arch_spin_trylock_retry);
 void arch_spin_relax(arch_spinlock_t *lock)
 {
         unsigned int cpu = lock->owner_cpu;
-        if (cpu != 0)
-                _raw_yield_cpu(~cpu);
+        if (cpu != 0) {
+                if (MACHINE_IS_VM || MACHINE_IS_KVM ||
+                    !smp_vcpu_scheduled(~cpu))
+                        _raw_yield_cpu(~cpu);
+        }
 }
 EXPORT_SYMBOL(arch_spin_relax);
 
diff --git a/arch/s390/lib/usercopy.c b/arch/s390/lib/usercopy.c
new file mode 100644
index 000000000000..14b363fec8a2
--- /dev/null
+++ b/arch/s390/lib/usercopy.c
@@ -0,0 +1,8 @@
+#include <linux/module.h>
+#include <linux/bug.h>
+
+void copy_from_user_overflow(void)
+{
+        WARN(1, "Buffer overflow detected!\n");
+}
+EXPORT_SYMBOL(copy_from_user_overflow);
diff --git a/arch/s390/mm/extmem.c b/arch/s390/mm/extmem.c
index 5c8457129603..6409fd57eb04 100644
--- a/arch/s390/mm/extmem.c
+++ b/arch/s390/mm/extmem.c
@@ -309,7 +309,7 @@ query_segment_type (struct dcss_segment *seg)
         }
 #endif
         if (qout->segcnt > 6) {
-                rc = -ENOTSUPP;
+                rc = -EOPNOTSUPP;
                 goto out_free;
         }
 
@@ -324,11 +324,11 @@ query_segment_type (struct dcss_segment *seg)
                 for (i=0; i<qout->segcnt; i++) {
                         if (((qout->range[i].start & 0xff) != SEG_TYPE_EW) &&
                             ((qout->range[i].start & 0xff) != SEG_TYPE_EN)) {
-                                rc = -ENOTSUPP;
+                                rc = -EOPNOTSUPP;
                                 goto out_free;
                         }
                         if (start != qout->range[i].start >> PAGE_SHIFT) {
-                                rc = -ENOTSUPP;
+                                rc = -EOPNOTSUPP;
                                 goto out_free;
                         }
                         start = (qout->range[i].end >> PAGE_SHIFT) + 1;
@@ -357,7 +357,7 @@ query_segment_type (struct dcss_segment *seg)
  * -ENOSYS  : we are not running on VM
  * -EIO     : could not perform query diagnose
  * -ENOENT  : no such segment
- * -ENOTSUPP: multi-part segment cannot be used with linux
+ * -EOPNOTSUPP: multi-part segment cannot be used with linux
  * -ENOMEM  : out of memory
  * 0 .. 6   : type of segment as defined in include/asm-s390/extmem.h
  */
@@ -515,7 +515,7 @@ __segment_load (char *name, int do_nonshared, unsigned long *addr, unsigned long
  * -ENOSYS  : we are not running on VM
  * -EIO     : could not perform query or load diagnose
  * -ENOENT  : no such segment
- * -ENOTSUPP: multi-part segment cannot be used with linux
+ * -EOPNOTSUPP: multi-part segment cannot be used with linux
  * -ENOSPC  : segment cannot be used (overlaps with storage)
  * -EBUSY   : segment can temporarily not be used (overlaps with dcss)
  * -ERANGE  : segment cannot be used (exceeds kernel mapping range)
@@ -742,7 +742,7 @@ void segment_warning(int rc, char *seg_name)
                 pr_err("Loading or querying DCSS %s resulted in a "
                        "hardware error\n", seg_name);
                 break;
-        case -ENOTSUPP:
+        case -EOPNOTSUPP:
                 pr_err("DCSS %s has multiple page ranges and cannot be "
                        "loaded or queried\n", seg_name);
                 break;
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c
index fc102e70d9c2..3040d7c78fe0 100644
--- a/arch/s390/mm/fault.c
+++ b/arch/s390/mm/fault.c
@@ -30,6 +30,7 @@
 #include <linux/kprobes.h>
 #include <linux/uaccess.h>
 #include <linux/hugetlb.h>
+#include <asm/asm-offsets.h>
 #include <asm/system.h>
 #include <asm/pgtable.h>
 #include <asm/s390_ext.h>
@@ -59,15 +60,13 @@ static inline int notify_page_fault(struct pt_regs *regs)
 {
         int ret = 0;
 
-#ifdef CONFIG_KPROBES
         /* kprobe_running() needs smp_processor_id() */
-        if (!user_mode(regs)) {
+        if (kprobes_built_in() && !user_mode(regs)) {
                 preempt_disable();
                 if (kprobe_running() && kprobe_fault_handler(regs, 14))
                         ret = 1;
                 preempt_enable();
         }
-#endif
         return ret;
 }
 
diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c
index 765647952221..d5865e4024ce 100644
--- a/arch/s390/mm/init.c
+++ b/arch/s390/mm/init.c
@@ -143,33 +143,34 @@ void kernel_map_pages(struct page *page, int numpages, int enable)
 }
 #endif
 
-void free_initmem(void)
+void free_init_pages(char *what, unsigned long begin, unsigned long end)
 {
-        unsigned long addr;
+        unsigned long addr = begin;
 
-        addr = (unsigned long)(&__init_begin);
-        for (; addr < (unsigned long)(&__init_end); addr += PAGE_SIZE) {
+        if (begin >= end)
+                return;
+        for (; addr < end; addr += PAGE_SIZE) {
                 ClearPageReserved(virt_to_page(addr));
                 init_page_count(virt_to_page(addr));
-                memset((void *)addr, POISON_FREE_INITMEM, PAGE_SIZE);
+                memset((void *)(addr & PAGE_MASK), POISON_FREE_INITMEM,
+                       PAGE_SIZE);
                 free_page(addr);
                 totalram_pages++;
-        }
-        printk ("Freeing unused kernel memory: %ldk freed\n",
-                ((unsigned long)&__init_end - (unsigned long)&__init_begin) >> 10);
+        }
+        printk(KERN_INFO "Freeing %s: %luk freed\n", what, (end - begin) >> 10);
+}
+
+void free_initmem(void)
+{
+        free_init_pages("unused kernel memory",
+                        (unsigned long)&__init_begin,
+                        (unsigned long)&__init_end);
 }
 
 #ifdef CONFIG_BLK_DEV_INITRD
 void free_initrd_mem(unsigned long start, unsigned long end)
 {
-        if (start < end)
-                printk ("Freeing initrd memory: %ldk freed\n", (end - start) >> 10);
-        for (; start < end; start += PAGE_SIZE) {
-                ClearPageReserved(virt_to_page(start));
-                init_page_count(virt_to_page(start));
-                free_page(start);
-                totalram_pages++;
-        }
+        free_init_pages("initrd memory", start, end);
 }
 #endif