Merge branch 'perf/core' into perf/uprobes

Merge in latest upstream (and the latest perf development tree),
to prepare for tooling changes, and also to pick up v3.4 MM
changes that the uprobes code needs to take care of.

Signed-off-by: Ingo Molnar <mingo@kernel.org>

31 files changed, 639 insertions, 532 deletions

diff --git a/arch/s390/include/asm/atomic.h b/arch/s390/include/asm/atomic.h
index 8517d2ae3b5c..748347baecb8 100644
--- a/arch/s390/include/asm/atomic.h
+++ b/arch/s390/include/asm/atomic.h
@@ -15,7 +15,7 @@
 
 #include <linux/compiler.h>
 #include <linux/types.h>
-#include <asm/system.h>
+#include <asm/cmpxchg.h>
 
 #define ATOMIC_INIT(i)  { (i) }
 
diff --git a/arch/s390/include/asm/barrier.h b/arch/s390/include/asm/barrier.h
new file mode 100644
index 000000000000..451273ad4d34
--- /dev/null
+++ b/arch/s390/include/asm/barrier.h
@@ -0,0 +1,35 @@
+/*
+ * Copyright IBM Corp. 1999, 2009
+ *
+ * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
+ */
+
+#ifndef __ASM_BARRIER_H
+#define __ASM_BARRIER_H
+
+/*
+ * Force strict CPU ordering.
+ * And yes, this is required on UP too when we're talking
+ * to devices.
+ *
+ * This is very similar to the ppc eieio/sync instruction in that is
+ * does a checkpoint syncronisation & makes sure that 
+ * all memory ops have completed wrt other CPU's ( see 7-15 POP  DJB ).
+ */
+
+#define eieio()	asm volatile("bcr 15,0" : : : "memory")
+#define SYNC_OTHER_CORES(x)   eieio()
+#define mb()    eieio()
+#define rmb()   eieio()
+#define wmb()   eieio()
+#define read_barrier_depends() do { } while(0)
+#define smp_mb()       mb()
+#define smp_rmb()      rmb()
+#define smp_wmb()      wmb()
+#define smp_read_barrier_depends()    read_barrier_depends()
+#define smp_mb__before_clear_bit()     smp_mb()
+#define smp_mb__after_clear_bit()      smp_mb()
+
+#define set_mb(var, value)      do { var = value; mb(); } while (0)
+
+#endif /* __ASM_BARRIER_H */
diff --git a/arch/s390/include/asm/cpu_mf.h b/arch/s390/include/asm/cpu_mf.h
new file mode 100644
index 000000000000..a3afecdae145
--- /dev/null
+++ b/arch/s390/include/asm/cpu_mf.h
@@ -0,0 +1,97 @@
+/*
+ * CPU-measurement facilities
+ *
+ *  Copyright IBM Corp. 2012
+ *  Author(s): Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
+ *	       Jan Glauber <jang@linux.vnet.ibm.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License (version 2 only)
+ * as published by the Free Software Foundation.
+ */
+#ifndef _ASM_S390_CPU_MF_H
+#define _ASM_S390_CPU_MF_H
+
+#include <asm/facility.h>
+
+#define CPU_MF_INT_SF_IAE	(1 << 31)	/* invalid entry address */
+#define CPU_MF_INT_SF_ISE	(1 << 30)	/* incorrect SDBT entry */
+#define CPU_MF_INT_SF_PRA	(1 << 29)	/* program request alert */
+#define CPU_MF_INT_SF_SACA	(1 << 23)	/* sampler auth. change alert */
+#define CPU_MF_INT_SF_LSDA	(1 << 22)	/* loss of sample data alert */
+#define CPU_MF_INT_CF_CACA	(1 <<  7)	/* counter auth. change alert */
+#define CPU_MF_INT_CF_LCDA	(1 <<  6)	/* loss of counter data alert */
+
+#define CPU_MF_INT_CF_MASK	(CPU_MF_INT_CF_CACA|CPU_MF_INT_CF_LCDA)
+#define CPU_MF_INT_SF_MASK	(CPU_MF_INT_SF_IAE|CPU_MF_INT_SF_ISE|	\
+				 CPU_MF_INT_SF_PRA|CPU_MF_INT_SF_SACA|	\
+				 CPU_MF_INT_SF_LSDA)
+
+/* CPU measurement facility support */
+static inline int cpum_cf_avail(void)
+{
+	return MACHINE_HAS_SPP && test_facility(67);
+}
+
+static inline int cpum_sf_avail(void)
+{
+	return MACHINE_HAS_SPP && test_facility(68);
+}
+
+
+struct cpumf_ctr_info {
+	u16   cfvn;
+	u16   auth_ctl;
+	u16   enable_ctl;
+	u16   act_ctl;
+	u16   max_cpu;
+	u16   csvn;
+	u16   max_cg;
+	u16   reserved1;
+	u32   reserved2[12];
+} __packed;
+
+/* Query counter information */
+static inline int qctri(struct cpumf_ctr_info *info)
+{
+	int rc = -EINVAL;
+
+	asm volatile (
+		"0:	.insn	s,0xb28e0000,%1\n"
+		"1:	lhi	%0,0\n"
+		"2:\n"
+		EX_TABLE(1b, 2b)
+		: "+d" (rc), "=Q" (*info));
+	return rc;
+}
+
+/* Load CPU-counter-set controls */
+static inline int lcctl(u64 ctl)
+{
+	int cc;
+
+	asm volatile (
+		"	.insn	s,0xb2840000,%1\n"
+		"	ipm	%0\n"
+		"	srl	%0,28\n"
+		: "=d" (cc) : "m" (ctl) : "cc");
+	return cc;
+}
+
+/* Extract CPU counter */
+static inline int ecctr(u64 ctr, u64 *val)
+{
+	register u64 content asm("4") = 0;
+	int cc;
+
+	asm volatile (
+		"	.insn	rre,0xb2e40000,%0,%2\n"
+		"	ipm	%1\n"
+		"	srl	%1,28\n"
+		: "=d" (content), "=d" (cc) : "d" (ctr) : "cc");
+	if (!cc)
+		*val = content;
+	return cc;
+}
+
+#endif /* _ASM_S390_CPU_MF_H */
diff --git a/arch/s390/include/asm/cputime.h b/arch/s390/include/asm/cputime.h
index c23c3900c304..24ef186a1c4f 100644
--- a/arch/s390/include/asm/cputime.h
+++ b/arch/s390/include/asm/cputime.h
@@ -170,24 +170,17 @@ struct s390_idle_data {
 	unsigned int sequence;
 	unsigned long long idle_count;
 	unsigned long long idle_enter;
+	unsigned long long idle_exit;
 	unsigned long long idle_time;
 	int nohz_delay;
 };
 
 DECLARE_PER_CPU(struct s390_idle_data, s390_idle);
 
-void vtime_start_cpu(__u64 int_clock, __u64 enter_timer);
 cputime64_t s390_get_idle_time(int cpu);
 
 #define arch_idle_time(cpu) s390_get_idle_time(cpu)
 
-static inline void s390_idle_check(struct pt_regs *regs, __u64 int_clock,
-				   __u64 enter_timer)
-{
-	if (regs->psw.mask & PSW_MASK_WAIT)
-		vtime_start_cpu(int_clock, enter_timer);
-}
-
 static inline int s390_nohz_delay(int cpu)
 {
 	return __get_cpu_var(s390_idle).nohz_delay != 0;
diff --git a/arch/s390/include/asm/ctl_reg.h b/arch/s390/include/asm/ctl_reg.h
new file mode 100644
index 000000000000..ecde9417d669
--- /dev/null
+++ b/arch/s390/include/asm/ctl_reg.h
@@ -0,0 +1,76 @@
+/*
+ * Copyright IBM Corp. 1999, 2009
+ *
+ * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
+ */
+
+#ifndef __ASM_CTL_REG_H
+#define __ASM_CTL_REG_H
+
+#ifdef __s390x__
+
+#define __ctl_load(array, low, high) ({				\
+	typedef struct { char _[sizeof(array)]; } addrtype;	\
+	asm volatile(						\
+		"	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	%1,%2,%0\n"			\
+		: "=Q" (*(addrtype *)(&array))			\
+		: "i" (low), "i" (high));			\
+	})
+
+#else /* __s390x__ */
+
+#define __ctl_load(array, low, high) ({				\
+	typedef struct { char _[sizeof(array)]; } addrtype;	\
+	asm volatile(						\
+		"	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	%1,%2,%0\n"			\
+		: "=Q" (*(addrtype *)(&array))			\
+		: "i" (low), "i" (high));			\
+	})
+
+#endif /* __s390x__ */
+
+#define __ctl_set_bit(cr, bit) ({	\
+	unsigned long __dummy;		\
+	__ctl_store(__dummy, cr, cr);	\
+	__dummy |= 1UL << (bit);	\
+	__ctl_load(__dummy, cr, cr);	\
+})
+
+#define __ctl_clear_bit(cr, bit) ({	\
+	unsigned long __dummy;		\
+	__ctl_store(__dummy, cr, cr);	\
+	__dummy &= ~(1UL << (bit));	\
+	__ctl_load(__dummy, cr, cr);	\
+})
+
+#ifdef CONFIG_SMP
+
+extern void smp_ctl_set_bit(int cr, int bit);
+extern void smp_ctl_clear_bit(int cr, int bit);
+#define ctl_set_bit(cr, bit) smp_ctl_set_bit(cr, bit)
+#define ctl_clear_bit(cr, bit) smp_ctl_clear_bit(cr, bit)
+
+#else
+
+#define ctl_set_bit(cr, bit) __ctl_set_bit(cr, bit)
+#define ctl_clear_bit(cr, bit) __ctl_clear_bit(cr, bit)
+
+#endif /* CONFIG_SMP */
+
+#endif /* __ASM_CTL_REG_H */
diff --git a/arch/s390/include/asm/debug.h b/arch/s390/include/asm/debug.h
index 9d88db1f55d0..8a8245ed14d2 100644
--- a/arch/s390/include/asm/debug.h
+++ b/arch/s390/include/asm/debug.h
@@ -131,6 +131,7 @@ void debug_unregister(debug_info_t* id);
 
 void debug_set_level(debug_info_t* id, int new_level);
 
+void debug_set_critical(void);
 void debug_stop_all(void);
 
 static inline debug_entry_t*
diff --git a/arch/s390/include/asm/elf.h b/arch/s390/include/asm/elf.h
index 547f1a6a35d4..c4ee39f7a4d6 100644
--- a/arch/s390/include/asm/elf.h
+++ b/arch/s390/include/asm/elf.h
@@ -129,7 +129,6 @@ typedef s390_fp_regs compat_elf_fpregset_t;
 typedef s390_compat_regs compat_elf_gregset_t;
 
 #include <linux/sched.h>	/* for task_struct */
-#include <asm/system.h>		/* for save_access_regs */
 #include <asm/mmu_context.h>
 
 #include <asm/vdso.h>
diff --git a/arch/s390/include/asm/exec.h b/arch/s390/include/asm/exec.h
new file mode 100644
index 000000000000..c4a93d6327fa
--- /dev/null
+++ b/arch/s390/include/asm/exec.h
@@ -0,0 +1,12 @@
+/*
+ * Copyright IBM Corp. 1999, 2009
+ *
+ * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
+ */
+
+#ifndef __ASM_EXEC_H
+#define __ASM_EXEC_H
+
+extern unsigned long arch_align_stack(unsigned long sp);
+
+#endif /* __ASM_EXEC_H */
diff --git a/arch/s390/include/asm/facility.h b/arch/s390/include/asm/facility.h
new file mode 100644
index 000000000000..1e5b27edc0c9
--- /dev/null
+++ b/arch/s390/include/asm/facility.h
@@ -0,0 +1,63 @@
+/*
+ * Copyright IBM Corp. 1999, 2009
+ *
+ * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
+ */
+
+#ifndef __ASM_FACILITY_H
+#define __ASM_FACILITY_H
+
+#include <linux/string.h>
+#include <linux/preempt.h>
+#include <asm/lowcore.h>
+
+#define MAX_FACILITY_BIT (256*8)	/* stfle_fac_list has 256 bytes */
+
+/*
+ * The test_facility function uses the bit odering where the MSB is bit 0.
+ * That makes it easier to query facility bits with the bit number as
+ * documented in the Principles of Operation.
+ */
+static inline int test_facility(unsigned long nr)
+{
+	unsigned char *ptr;
+
+	if (nr >= MAX_FACILITY_BIT)
+		return 0;
+	ptr = (unsigned char *) &S390_lowcore.stfle_fac_list + (nr >> 3);
+	return (*ptr & (0x80 >> (nr & 7))) != 0;
+}
+
+/**
+ * stfle - Store facility list extended
+ * @stfle_fac_list: array where facility list can be stored
+ * @size: size of passed in array in double words
+ */
+static inline void stfle(u64 *stfle_fac_list, int size)
+{
+	unsigned long nr;
+
+	preempt_disable();
+	S390_lowcore.stfl_fac_list = 0;
+	asm volatile(
+		"	.insn s,0xb2b10000,0(0)\n" /* stfl */
+		"0:\n"
+		EX_TABLE(0b, 0b)
+		: "=m" (S390_lowcore.stfl_fac_list));
+	nr = 4; /* bytes stored by stfl */
+	memcpy(stfle_fac_list, &S390_lowcore.stfl_fac_list, 4);
+	if (S390_lowcore.stfl_fac_list & 0x01000000) {
+		/* More facility bits available with stfle */
+		register unsigned long reg0 asm("0") = size - 1;
+
+		asm volatile(".insn s,0xb2b00000,0(%1)" /* stfle */
+			     : "+d" (reg0)
+			     : "a" (stfle_fac_list)
+			     : "memory", "cc");
+		nr = (reg0 + 1) * 8; /* # bytes stored by stfle */
+	}
+	memset((char *) stfle_fac_list + nr, 0, size * 8 - nr);
+	preempt_enable();
+}
+
+#endif /* __ASM_FACILITY_H */
diff --git a/arch/s390/include/asm/hardirq.h b/arch/s390/include/asm/hardirq.h
index e4155d3eb2cb..510ba9ef4248 100644
--- a/arch/s390/include/asm/hardirq.h
+++ b/arch/s390/include/asm/hardirq.h
@@ -18,6 +18,7 @@
 
 #define __ARCH_IRQ_STAT
 #define __ARCH_HAS_DO_SOFTIRQ
+#define __ARCH_IRQ_EXIT_IRQS_DISABLED
 
 #define HARDIRQ_BITS	8
 
diff --git a/arch/s390/include/asm/ipl.h b/arch/s390/include/asm/ipl.h
index 6940abfbe1d9..2bd6cb897b90 100644
--- a/arch/s390/include/asm/ipl.h
+++ b/arch/s390/include/asm/ipl.h
@@ -169,5 +169,6 @@ enum diag308_rc {
 extern int diag308(unsigned long subcode, void *addr);
 extern void diag308_reset(void);
 extern void store_status(void);
+extern void lgr_info_log(void);
 
 #endif /* _ASM_S390_IPL_H */
diff --git a/arch/s390/include/asm/irq.h b/arch/s390/include/asm/irq.h
index ba6d85f88d50..5289cacd4861 100644
--- a/arch/s390/include/asm/irq.h
+++ b/arch/s390/include/asm/irq.h
@@ -34,11 +34,18 @@ enum interruption_class {
 	NR_IRQS,
 };
 
-typedef void (*ext_int_handler_t)(unsigned int, unsigned int, unsigned long);
+struct ext_code {
+	unsigned short subcode;
+	unsigned short code;
+};
+
+typedef void (*ext_int_handler_t)(struct ext_code, unsigned int, unsigned long);
 
 int register_external_interrupt(u16 code, ext_int_handler_t handler);
 int unregister_external_interrupt(u16 code, ext_int_handler_t handler);
 void service_subclass_irq_register(void);
 void service_subclass_irq_unregister(void);
+void measurement_alert_subclass_register(void);
+void measurement_alert_subclass_unregister(void);
 
 #endif /* _ASM_IRQ_H */
diff --git a/arch/s390/include/asm/jump_label.h b/arch/s390/include/asm/jump_label.h
index 95a6cf2b5b67..6c32190dc73e 100644
--- a/arch/s390/include/asm/jump_label.h
+++ b/arch/s390/include/asm/jump_label.h
@@ -13,7 +13,7 @@
 #define ASM_ALIGN ".balign 4"
 #endif
 
-static __always_inline bool arch_static_branch(struct jump_label_key *key)
+static __always_inline bool arch_static_branch(struct static_key *key)
 {
 	asm goto("0:	brcl 0,0\n"
 		".pushsection __jump_table, \"aw\"\n"
diff --git a/arch/s390/include/asm/kvm.h b/arch/s390/include/asm/kvm.h
index 82b32a100c7d..96076676e224 100644
--- a/arch/s390/include/asm/kvm.h
+++ b/arch/s390/include/asm/kvm.h
@@ -41,4 +41,15 @@ struct kvm_debug_exit_arch {
 struct kvm_guest_debug_arch {
 };
 
+#define KVM_SYNC_PREFIX (1UL << 0)
+#define KVM_SYNC_GPRS   (1UL << 1)
+#define KVM_SYNC_ACRS   (1UL << 2)
+#define KVM_SYNC_CRS    (1UL << 3)
+/* definition of registers in kvm_run */
+struct kvm_sync_regs {
+	__u64 prefix;	/* prefix register */
+	__u64 gprs[16];	/* general purpose registers */
+	__u32 acrs[16];	/* access registers */
+	__u64 crs[16];	/* control registers */
+};
 #endif
diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h
index b0c235cb6ad5..7343872890a2 100644
--- a/arch/s390/include/asm/kvm_host.h
+++ b/arch/s390/include/asm/kvm_host.h
@@ -220,18 +220,17 @@ struct kvm_s390_float_interrupt {
 	struct list_head list;
 	atomic_t active;
 	int next_rr_cpu;
-	unsigned long idle_mask [(64 + sizeof(long) - 1) / sizeof(long)];
-	struct kvm_s390_local_interrupt *local_int[64];
+	unsigned long idle_mask[(KVM_MAX_VCPUS + sizeof(long) - 1)
+				/ sizeof(long)];
+	struct kvm_s390_local_interrupt *local_int[KVM_MAX_VCPUS];
 };
 
 
 struct kvm_vcpu_arch {
 	struct kvm_s390_sie_block *sie_block;
-	unsigned long	  guest_gprs[16];
 	s390_fp_regs      host_fpregs;
 	unsigned int      host_acrs[NUM_ACRS];
 	s390_fp_regs      guest_fpregs;
-	unsigned int      guest_acrs[NUM_ACRS];
 	struct kvm_s390_local_interrupt local_int;
 	struct hrtimer    ckc_timer;
 	struct tasklet_struct tasklet;
@@ -246,6 +245,9 @@ struct kvm_vm_stat {
 	u32 remote_tlb_flush;
 };
 
+struct kvm_arch_memory_slot {
+};
+
 struct kvm_arch{
 	struct sca_block *sca;
 	debug_info_t *dbf;
@@ -253,5 +255,5 @@ struct kvm_arch{
 	struct gmap *gmap;
 };
 
-extern int sie64a(struct kvm_s390_sie_block *, unsigned long *);
+extern int sie64a(struct kvm_s390_sie_block *, u64 *);
 #endif
diff --git a/arch/s390/include/asm/lowcore.h b/arch/s390/include/asm/lowcore.h
index 707f2306725b..47853debb3b9 100644
--- a/arch/s390/include/asm/lowcore.h
+++ b/arch/s390/include/asm/lowcore.h
@@ -1,5 +1,5 @@
 /*
- *    Copyright IBM Corp. 1999,2010
+ *    Copyright IBM Corp. 1999,2012
  *    Author(s): Hartmut Penner <hp@de.ibm.com>,
  *		 Martin Schwidefsky <schwidefsky@de.ibm.com>,
  *		 Denis Joseph Barrow,
@@ -12,14 +12,6 @@
 #include <asm/ptrace.h>
 #include <asm/cpu.h>
 
-void restart_int_handler(void);
-void ext_int_handler(void);
-void system_call(void);
-void pgm_check_handler(void);
-void mcck_int_handler(void);
-void io_int_handler(void);
-void psw_restart_int_handler(void);
-
 #ifdef CONFIG_32BIT
 
 #define LC_ORDER 0
@@ -56,7 +48,7 @@ struct _lowcore {
 	psw_t	mcck_new_psw;			/* 0x0070 */
 	psw_t	io_new_psw;			/* 0x0078 */
 	__u32	ext_params;			/* 0x0080 */
-	__u16	cpu_addr;			/* 0x0084 */
+	__u16	ext_cpu_addr;			/* 0x0084 */
 	__u16	ext_int_code;			/* 0x0086 */
 	__u16	svc_ilc;			/* 0x0088 */
 	__u16	svc_code;			/* 0x008a */
@@ -117,32 +109,37 @@ struct _lowcore {
 	__u64	steal_timer;			/* 0x0288 */
 	__u64	last_update_timer;		/* 0x0290 */
 	__u64	last_update_clock;		/* 0x0298 */
+	__u64	int_clock;			/* 0x02a0 */
+	__u64	mcck_clock;			/* 0x02a8 */
+	__u64	clock_comparator;		/* 0x02b0 */
 
 	/* Current process. */
-	__u32	current_task;			/* 0x02a0 */
-	__u32	thread_info;			/* 0x02a4 */
-	__u32	kernel_stack;			/* 0x02a8 */
+	__u32	current_task;			/* 0x02b8 */
+	__u32	thread_info;			/* 0x02bc */
+	__u32	kernel_stack;			/* 0x02c0 */
+
+	/* Interrupt, panic and restart stack. */
+	__u32	async_stack;			/* 0x02c4 */
+	__u32	panic_stack;			/* 0x02c8 */
+	__u32	restart_stack;			/* 0x02cc */
 
-	/* Interrupt and panic stack. */
-	__u32	async_stack;			/* 0x02ac */
-	__u32	panic_stack;			/* 0x02b0 */
+	/* Restart function and parameter. */
+	__u32	restart_fn;			/* 0x02d0 */
+	__u32	restart_data;			/* 0x02d4 */
+	__u32	restart_source;			/* 0x02d8 */
 
 	/* Address space pointer. */
-	__u32	kernel_asce;			/* 0x02b4 */
-	__u32	user_asce;			/* 0x02b8 */
-	__u32	current_pid;			/* 0x02bc */
+	__u32	kernel_asce;			/* 0x02dc */
+	__u32	user_asce;			/* 0x02e0 */
+	__u32	current_pid;			/* 0x02e4 */
 
 	/* SMP info area */
-	__u32	cpu_nr;				/* 0x02c0 */
-	__u32	softirq_pending;		/* 0x02c4 */
-	__u32	percpu_offset;			/* 0x02c8 */
-	__u32	ext_call_fast;			/* 0x02cc */
-	__u64	int_clock;			/* 0x02d0 */
-	__u64	mcck_clock;			/* 0x02d8 */
-	__u64	clock_comparator;		/* 0x02e0 */
-	__u32	machine_flags;			/* 0x02e8 */
-	__u32	ftrace_func;			/* 0x02ec */
-	__u8	pad_0x02f8[0x0300-0x02f0];	/* 0x02f0 */
+	__u32	cpu_nr;				/* 0x02e8 */
+	__u32	softirq_pending;		/* 0x02ec */
+	__u32	percpu_offset;			/* 0x02f0 */
+	__u32	machine_flags;			/* 0x02f4 */
+	__u32	ftrace_func;			/* 0x02f8 */
+	__u8	pad_0x02fc[0x0300-0x02fc];	/* 0x02fc */
 
 	/* Interrupt response block */
 	__u8	irb[64];			/* 0x0300 */
@@ -157,7 +154,9 @@ struct _lowcore {
 	__u32	ipib;				/* 0x0e00 */
 	__u32	ipib_checksum;			/* 0x0e04 */
 	__u32	vmcore_info;			/* 0x0e08 */
-	__u8	pad_0x0e0c[0x0f00-0x0e0c];	/* 0x0e0c */
+	__u8	pad_0x0e0c[0x0e18-0x0e0c];	/* 0x0e0c */
+	__u32	os_info;			/* 0x0e18 */
+	__u8	pad_0x0e1c[0x0f00-0x0e1c];	/* 0x0e1c */
 
 	/* Extended facility list */
 	__u64	stfle_fac_list[32];		/* 0x0f00 */
@@ -189,7 +188,7 @@ struct _lowcore {
 	__u32	ipl_parmblock_ptr;		/* 0x0014 */
 	__u8	pad_0x0018[0x0080-0x0018];	/* 0x0018 */
 	__u32	ext_params;			/* 0x0080 */
-	__u16	cpu_addr;			/* 0x0084 */
+	__u16	ext_cpu_addr;			/* 0x0084 */
 	__u16	ext_int_code;			/* 0x0086 */
 	__u16	svc_ilc;			/* 0x0088 */
 	__u16	svc_code;			/* 0x008a */
@@ -254,34 +253,39 @@ struct _lowcore {
 	__u64	steal_timer;			/* 0x02e0 */
 	__u64	last_update_timer;		/* 0x02e8 */
 	__u64	last_update_clock;		/* 0x02f0 */
+	__u64	int_clock;			/* 0x02f8 */
+	__u64	mcck_clock;			/* 0x0300 */
+	__u64	clock_comparator;		/* 0x0308 */
 
 	/* Current process. */
-	__u64	current_task;			/* 0x02f8 */
-	__u64	thread_info;			/* 0x0300 */
-	__u64	kernel_stack;			/* 0x0308 */
+	__u64	current_task;			/* 0x0310 */
+	__u64	thread_info;			/* 0x0318 */
+	__u64	kernel_stack;			/* 0x0320 */
+
+	/* Interrupt, panic and restart stack. */
+	__u64	async_stack;			/* 0x0328 */
+	__u64	panic_stack;			/* 0x0330 */
+	__u64	restart_stack;			/* 0x0338 */
 
-	/* Interrupt and panic stack. */
-	__u64	async_stack;			/* 0x0310 */
-	__u64	panic_stack;			/* 0x0318 */
+	/* Restart function and parameter. */
+	__u64	restart_fn;			/* 0x0340 */
+	__u64	restart_data;			/* 0x0348 */
+	__u64	restart_source;			/* 0x0350 */
 
 	/* Address space pointer. */
-	__u64	kernel_asce;			/* 0x0320 */
-	__u64	user_asce;			/* 0x0328 */
-	__u64	current_pid;			/* 0x0330 */
+	__u64	kernel_asce;			/* 0x0358 */
+	__u64	user_asce;			/* 0x0360 */
+	__u64	current_pid;			/* 0x0368 */
 
 	/* SMP info area */
-	__u32	cpu_nr;				/* 0x0338 */
-	__u32	softirq_pending;		/* 0x033c */
-	__u64	percpu_offset;			/* 0x0340 */
-	__u64	ext_call_fast;			/* 0x0348 */
-	__u64	int_clock;			/* 0x0350 */
-	__u64	mcck_clock;			/* 0x0358 */
-	__u64	clock_comparator;		/* 0x0360 */
-	__u64	vdso_per_cpu_data;		/* 0x0368 */
-	__u64	machine_flags;			/* 0x0370 */
-	__u64	ftrace_func;			/* 0x0378 */
-	__u64	gmap;				/* 0x0380 */
-	__u8	pad_0x0388[0x0400-0x0388];	/* 0x0388 */
+	__u32	cpu_nr;				/* 0x0370 */
+	__u32	softirq_pending;		/* 0x0374 */
+	__u64	percpu_offset;			/* 0x0378 */
+	__u64	vdso_per_cpu_data;		/* 0x0380 */
+	__u64	machine_flags;			/* 0x0388 */
+	__u64	ftrace_func;			/* 0x0390 */
+	__u64	gmap;				/* 0x0398 */
+	__u8	pad_0x03a0[0x0400-0x03a0];	/* 0x03a0 */
 
 	/* Interrupt response block. */
 	__u8	irb[64];			/* 0x0400 */
@@ -298,8 +302,15 @@ struct _lowcore {
 	 */
 	__u64	ipib;				/* 0x0e00 */
 	__u32	ipib_checksum;			/* 0x0e08 */
-	__u64	vmcore_info;			/* 0x0e0c */
-	__u8	pad_0x0e14[0x0f00-0x0e14];	/* 0x0e14 */
+	/*
+	 * Because the vmcore_info pointer is not 8 byte aligned it never
+	 * should not be accessed directly. For accessing the pointer, first
+	 * copy it to a local pointer variable.
+	 */
+	__u8	vmcore_info[8];			/* 0x0e0c */
+	__u8	pad_0x0e14[0x0e18-0x0e14];	/* 0x0e14 */
+	__u64	os_info;			/* 0x0e18 */
+	__u8	pad_0x0e20[0x0f00-0x0e20];	/* 0x0e20 */
 
 	/* Extended facility list */
 	__u64	stfle_fac_list[32];		/* 0x0f00 */
diff --git a/arch/s390/include/asm/mmu.h b/arch/s390/include/asm/mmu.h
index 4506791adcd5..6340178748bf 100644
--- a/arch/s390/include/asm/mmu.h
+++ b/arch/s390/include/asm/mmu.h
@@ -1,6 +1,8 @@
 #ifndef __MMU_H
 #define __MMU_H
 
+#include <linux/errno.h>
+
 typedef struct {
 	atomic_t attach_count;
 	unsigned int flush_mm;
@@ -21,4 +23,18 @@ typedef struct {
 	.context.pgtable_list = LIST_HEAD_INIT(name.context.pgtable_list),    \
 	.context.gmap_list = LIST_HEAD_INIT(name.context.gmap_list),
 
+static inline int tprot(unsigned long addr)
+{
+	int rc = -EFAULT;
+
+	asm volatile(
+		"	tprot	0(%1),0\n"
+		"0:	ipm	%0\n"
+		"	srl	%0,28\n"
+		"1:\n"
+		EX_TABLE(0b,1b)
+		: "+d" (rc) : "a" (addr) : "cc");
+	return rc;
+}
+
 #endif
diff --git a/arch/s390/include/asm/mmu_context.h b/arch/s390/include/asm/mmu_context.h
index 5682f160ff82..5d09e405c54d 100644
--- a/arch/s390/include/asm/mmu_context.h
+++ b/arch/s390/include/asm/mmu_context.h
@@ -12,6 +12,7 @@
 #include <asm/pgalloc.h>
 #include <asm/uaccess.h>
 #include <asm/tlbflush.h>
+#include <asm/ctl_reg.h>
 #include <asm-generic/mm_hooks.h>
 
 static inline int init_new_context(struct task_struct *tsk,
diff --git a/arch/s390/include/asm/os_info.h b/arch/s390/include/asm/os_info.h
new file mode 100644
index 000000000000..d07518af09ea
--- /dev/null
+++ b/arch/s390/include/asm/os_info.h
@@ -0,0 +1,50 @@
+/*
+ * OS info memory interface
+ *
+ * Copyright IBM Corp. 2012
+ * Author(s): Michael Holzheu <holzheu@linux.vnet.ibm.com>
+ */
+#ifndef _ASM_S390_OS_INFO_H
+#define _ASM_S390_OS_INFO_H
+
+#define OS_INFO_VERSION_MAJOR	1
+#define OS_INFO_VERSION_MINOR	1
+#define OS_INFO_MAGIC		0x4f53494e464f535aULL /* OSINFOSZ */
+
+#define OS_INFO_VMCOREINFO	0
+#define OS_INFO_REIPL_BLOCK	1
+#define OS_INFO_INIT_FN		2
+
+struct os_info_entry {
+	u64	addr;
+	u64	size;
+	u32	csum;
+} __packed;
+
+struct os_info {
+	u64	magic;
+	u32	csum;
+	u16	version_major;
+	u16	version_minor;
+	u64	crashkernel_addr;
+	u64	crashkernel_size;
+	struct os_info_entry entry[3];
+	u8	reserved[4004];
+} __packed;
+
+void os_info_init(void);
+void os_info_entry_add(int nr, void *ptr, u64 len);
+void os_info_crashkernel_add(unsigned long base, unsigned long size);
+u32 os_info_csum(struct os_info *os_info);
+
+#ifdef CONFIG_CRASH_DUMP
+void *os_info_old_entry(int nr, unsigned long *size);
+int copy_from_oldmem(void *dest, void *src, size_t count);
+#else
+static inline void *os_info_old_entry(int nr, unsigned long *size)
+{
+	return NULL;
+}
+#endif
+
+#endif /* _ASM_S390_OS_INFO_H */
diff --git a/arch/s390/include/asm/perf_event.h b/arch/s390/include/asm/perf_event.h
index 4eb444edbe49..7941968e12b4 100644
--- a/arch/s390/include/asm/perf_event.h
+++ b/arch/s390/include/asm/perf_event.h
@@ -1,8 +1,16 @@
 /*
  * Performance event support - s390 specific definitions.
  *
- * Copyright 2009 Martin Schwidefsky, IBM Corporation.
+ * Copyright IBM Corp. 2009, 2012
+ * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
+ *	      Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
  */
 
-/* Empty, just to avoid compiling error */
+#include <asm/cpu_mf.h>
 
+/* CPU-measurement counter facility */
+#define PERF_CPUM_CF_MAX_CTR		160
+
+/* Per-CPU flags for PMU states */
+#define PMU_F_RESERVED			0x1000
+#define PMU_F_ENABLED			0x2000
diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h
index d25843a6a915..d499b30ea487 100644
--- a/arch/s390/include/asm/processor.h
+++ b/arch/s390/include/asm/processor.h
@@ -14,6 +14,7 @@
 #define __ASM_S390_PROCESSOR_H
 
 #include <linux/linkage.h>
+#include <linux/irqflags.h>
 #include <asm/cpu.h>
 #include <asm/page.h>
 #include <asm/ptrace.h>
@@ -156,6 +157,14 @@ unsigned long get_wchan(struct task_struct *p);
 #define KSTK_EIP(tsk)	(task_pt_regs(tsk)->psw.addr)
 #define KSTK_ESP(tsk)	(task_pt_regs(tsk)->gprs[15])
 
+static inline unsigned short stap(void)
+{
+	unsigned short cpu_address;
+
+	asm volatile("stap %0" : "=m" (cpu_address));
+	return cpu_address;
+}
+
 /*
  * Give up the time slice of the virtual PU.
  */
@@ -304,6 +313,21 @@ static inline void __noreturn disabled_wait(unsigned long code)
 }
 
 /*
+ * Use to set psw mask except for the first byte which
+ * won't be changed by this function.
+ */
+static inline void
+__set_psw_mask(unsigned long mask)
+{
+	__load_psw_mask(mask | (arch_local_save_flags() & ~(-1UL >> 8)));
+}
+
+#define local_mcck_enable() \
+	__set_psw_mask(psw_kernel_bits | PSW_MASK_DAT | PSW_MASK_MCHECK)
+#define local_mcck_disable() \
+	__set_psw_mask(psw_kernel_bits | PSW_MASK_DAT)
+
+/*
  * Basic Machine Check/Program Check Handler.
  */
 
diff --git a/arch/s390/include/asm/qeth.h b/arch/s390/include/asm/qeth.h
index 90efda0b137d..2c7c898c03e4 100644
--- a/arch/s390/include/asm/qeth.h
+++ b/arch/s390/include/asm/qeth.h
@@ -20,6 +20,7 @@
 #define SIOC_QETH_ARP_FLUSH_CACHE       (SIOCDEVPRIVATE + 4)
 #define SIOC_QETH_ADP_SET_SNMP_CONTROL  (SIOCDEVPRIVATE + 5)
 #define SIOC_QETH_GET_CARD_TYPE         (SIOCDEVPRIVATE + 6)
+#define SIOC_QETH_QUERY_OAT		(SIOCDEVPRIVATE + 7)
 
 struct qeth_arp_cache_entry {
 	__u8  macaddr[6];
@@ -107,4 +108,10 @@ struct qeth_arp_query_user_data {
 	char *entries;
 } __attribute__((packed));
 
+struct qeth_query_oat_data {
+	__u32 command;
+	__u32 buffer_len;
+	__u32 response_len;
+	__u64 ptr;
+};
 #endif /* __ASM_S390_QETH_IOCTL_H__ */
diff --git a/arch/s390/include/asm/setup.h b/arch/s390/include/asm/setup.h
index 097183c70407..b21e46e5d4b8 100644
--- a/arch/s390/include/asm/setup.h
+++ b/arch/s390/include/asm/setup.h
@@ -140,6 +140,20 @@ extern char vmpoff_cmd[];
 #define NSS_NAME_SIZE	8
 extern char kernel_nss_name[];
 
+#ifdef CONFIG_PFAULT
+extern int pfault_init(void);
+extern void pfault_fini(void);
+#else /* CONFIG_PFAULT */
+#define pfault_init()		({-1;})
+#define pfault_fini()		do { } while (0)
+#endif /* CONFIG_PFAULT */
+
+extern void cmma_init(void);
+
+extern void (*_machine_restart)(char *command);
+extern void (*_machine_halt)(void);
+extern void (*_machine_power_off)(void);
+
 #else /* __ASSEMBLY__ */
 
 #ifndef __s390x__
diff --git a/arch/s390/include/asm/sigp.h b/arch/s390/include/asm/sigp.h
deleted file mode 100644
index 7040b8567cd0..000000000000
--- a/arch/s390/include/asm/sigp.h
+++ /dev/null
@@ -1,132 +0,0 @@
-/*
- *  Routines and structures for signalling other processors.
- *
- *    Copyright IBM Corp. 1999,2010
- *    Author(s): Denis Joseph Barrow,
- *		 Martin Schwidefsky <schwidefsky@de.ibm.com>,
- *		 Heiko Carstens <heiko.carstens@de.ibm.com>,
- */
-
-#ifndef __ASM_SIGP_H
-#define __ASM_SIGP_H
-
-#include <asm/system.h>
-
-/* Get real cpu address from logical cpu number. */
-extern unsigned short __cpu_logical_map[];
-
-static inline int cpu_logical_map(int cpu)
-{
-#ifdef CONFIG_SMP
-	return __cpu_logical_map[cpu];
-#else
-	return stap();
-#endif
-}
-
-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 external call.
- */
-enum {
-	ec_schedule = 0,
-	ec_call_function,
-	ec_call_function_single,
-	ec_stop_cpu,
-};
-
-/*
- * Signal processor.
- */
-static inline int raw_sigp(u16 cpu, int order)
-{
-	register unsigned long reg1 asm ("1") = 0;
-	int ccode;
-
-	asm volatile(
-		"	sigp	%1,%2,0(%3)\n"
-		"	ipm	%0\n"
-		"	srl	%0,28\n"
-		:	"=d"	(ccode)
-		: "d" (reg1), "d" (cpu),
-		  "a" (order) : "cc" , "memory");
-	return ccode;
-}
-
-/*
- * Signal processor with parameter.
- */
-static inline int raw_sigp_p(u32 parameter, u16 cpu, int order)
-{
-	register unsigned int reg1 asm ("1") = parameter;
-	int ccode;
-
-	asm volatile(
-		"	sigp	%1,%2,0(%3)\n"
-		"	ipm	%0\n"
-		"	srl	%0,28\n"
-		: "=d" (ccode)
-		: "d" (reg1), "d" (cpu),
-		  "a" (order) : "cc" , "memory");
-	return ccode;
-}
-
-/*
- * Signal processor with parameter and return status.
- */
-static inline int raw_sigp_ps(u32 *status, u32 parm, u16 cpu, int order)
-{
-	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), "a" (order)
-		: "cc" , "memory");
-	*status = reg1;
-	return ccode;
-}
-
-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 c32e9123b40c..c77c6de6f6c0 100644
--- a/arch/s390/include/asm/smp.h
+++ b/arch/s390/include/asm/smp.h
@@ -1,5 +1,5 @@
 /*
- *    Copyright IBM Corp. 1999,2009
+ *    Copyright IBM Corp. 1999,2012
  *    Author(s): Denis Joseph Barrow,
  *		 Martin Schwidefsky <schwidefsky@de.ibm.com>,
  *		 Heiko Carstens <heiko.carstens@de.ibm.com>,
@@ -9,72 +9,53 @@
 
 #ifdef CONFIG_SMP
 
-#include <asm/system.h>
-#include <asm/sigp.h>
-
-extern void machine_restart_smp(char *);
-extern void machine_halt_smp(void);
-extern void machine_power_off_smp(void);
+#include <asm/lowcore.h>
 
 #define raw_smp_processor_id()	(S390_lowcore.cpu_nr)
 
-extern int __cpu_disable (void);
-extern void __cpu_die (unsigned int cpu);
-extern int __cpu_up (unsigned int cpu);
-
 extern struct mutex smp_cpu_state_mutex;
+extern struct save_area *zfcpdump_save_areas[NR_CPUS + 1];
+
+extern int __cpu_up(unsigned int cpu);
 
 extern void arch_send_call_function_single_ipi(int cpu);
 extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
 
-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_with_online_cpu(void);
-extern void smp_restart_cpu(void);
+extern void smp_call_online_cpu(void (*func)(void *), void *);
+extern void smp_call_ipl_cpu(void (*func)(void *), 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;
-}
+extern int smp_find_processor_id(u16 address);
+extern int smp_store_status(int cpu);
+extern int smp_vcpu_scheduled(int cpu);
+extern void smp_yield_cpu(int cpu);
+extern void smp_yield(void);
+extern void smp_stop_cpu(void);
 
 #else /* CONFIG_SMP */
 
-static inline void smp_switch_to_ipl_cpu(void (*func)(void *), void *data)
+static inline void smp_call_ipl_cpu(void (*func)(void *), void *data)
 {
 	func(data);
 }
 
-static inline void smp_restart_with_online_cpu(void)
+static inline void smp_call_online_cpu(void (*func)(void *), void *data)
 {
+	func(data);
 }
 
-#define smp_vcpu_scheduled	(1)
+static inline int smp_find_processor_id(int address) { return 0; }
+static inline int smp_vcpu_scheduled(int cpu) { return 1; }
+static inline void smp_yield_cpu(int cpu) { }
+static inline void smp_yield(void) { }
+static inline void smp_stop_cpu(void) { }
 
 #endif /* CONFIG_SMP */
 
 #ifdef CONFIG_HOTPLUG_CPU
 extern int smp_rescan_cpus(void);
 extern void __noreturn cpu_die(void);
+extern void __cpu_die(unsigned int cpu);
+extern int __cpu_disable(void);
 #else
 static inline int smp_rescan_cpus(void) { return 0; }
 static inline void cpu_die(void) { }
diff --git a/arch/s390/include/asm/socket.h b/arch/s390/include/asm/socket.h
index 67b5c1b14b51..c91b720965c0 100644
--- a/arch/s390/include/asm/socket.h
+++ b/arch/s390/include/asm/socket.h
@@ -72,5 +72,9 @@
 
 #define SO_WIFI_STATUS		41
 #define SCM_WIFI_STATUS		SO_WIFI_STATUS
+#define SO_PEEK_OFF		42
+
+/* Instruct lower device to use last 4-bytes of skb data as FCS */
+#define SO_NOFCS		43
 
 #endif /* _ASM_SOCKET_H */
diff --git a/arch/s390/include/asm/switch_to.h b/arch/s390/include/asm/switch_to.h
new file mode 100644
index 000000000000..f223068b7822
--- /dev/null
+++ b/arch/s390/include/asm/switch_to.h
@@ -0,0 +1,100 @@
+/*
+ * Copyright IBM Corp. 1999, 2009
+ *
+ * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
+ */
+
+#ifndef __ASM_SWITCH_TO_H
+#define __ASM_SWITCH_TO_H
+
+#include <linux/thread_info.h>
+
+extern struct task_struct *__switch_to(void *, void *);
+extern void update_per_regs(struct task_struct *task);
+
+static inline void save_fp_regs(s390_fp_regs *fpregs)
+{
+	asm volatile(
+		"	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\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,%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\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" : "=Q" (*acrs));
+}
+
+static inline void restore_access_regs(unsigned int *acrs)
+{
+	asm volatile("lam 0,15,%0" : : "Q" (*acrs));
+}
+
+#define switch_to(prev,next,last) do {					\
+	if (prev->mm) {							\
+		save_fp_regs(&prev->thread.fp_regs);			\
+		save_access_regs(&prev->thread.acrs[0]);		\
+	}								\
+	if (next->mm) {							\
+		restore_fp_regs(&next->thread.fp_regs);			\
+		restore_access_regs(&next->thread.acrs[0]);		\
+		update_per_regs(next);					\
+	}								\
+	prev = __switch_to(prev,next);					\
+} while (0)
+
+extern void account_vtime(struct task_struct *, struct task_struct *);
+extern void account_tick_vtime(struct task_struct *);
+
+#define finish_arch_switch(prev) do {					     \
+	set_fs(current->thread.mm_segment);				     \
+	account_vtime(prev, current);					     \
+} while (0)
+
+#endif /* __ASM_SWITCH_TO_H */
diff --git a/arch/s390/include/asm/system.h b/arch/s390/include/asm/system.h
deleted file mode 100644
index d73cc6b60000..000000000000
--- a/arch/s390/include/asm/system.h
+++ /dev/null
@@ -1,281 +0,0 @@
-/*
- * Copyright IBM Corp. 1999, 2009
- *
- * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
- */
-
-#ifndef __ASM_SYSTEM_H
-#define __ASM_SYSTEM_H
-
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <asm/types.h>
-#include <asm/ptrace.h>
-#include <asm/setup.h>
-#include <asm/processor.h>
-#include <asm/lowcore.h>
-#include <asm/cmpxchg.h>
-
-#ifdef __KERNEL__
-
-struct task_struct;
-
-extern struct task_struct *__switch_to(void *, void *);
-extern void update_per_regs(struct task_struct *task);
-
-static inline void save_fp_regs(s390_fp_regs *fpregs)
-{
-	asm volatile(
-		"	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\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,%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\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" : "=Q" (*acrs));
-}
-
-static inline void restore_access_regs(unsigned int *acrs)
-{
-	asm volatile("lam 0,15,%0" : : "Q" (*acrs));
-}
-
-#define switch_to(prev,next,last) do {					\
-	if (prev->mm) {							\
-		save_fp_regs(&prev->thread.fp_regs);			\
-		save_access_regs(&prev->thread.acrs[0]);		\
-	}								\
-	if (next->mm) {							\
-		restore_fp_regs(&next->thread.fp_regs);			\
-		restore_access_regs(&next->thread.acrs[0]);		\
-		update_per_regs(next);					\
-	}								\
-	prev = __switch_to(prev,next);					\
-} while (0)
-
-extern void account_vtime(struct task_struct *, struct task_struct *);
-extern void account_tick_vtime(struct task_struct *);
-
-#ifdef CONFIG_PFAULT
-extern int pfault_init(void);
-extern void pfault_fini(void);
-#else /* CONFIG_PFAULT */
-#define pfault_init()		({-1;})
-#define pfault_fini()		do { } while (0)
-#endif /* CONFIG_PFAULT */
-
-extern void cmma_init(void);
-extern int memcpy_real(void *, void *, size_t);
-extern void copy_to_absolute_zero(void *dest, void *src, size_t count);
-extern int copy_to_user_real(void __user *dest, void *src, size_t count);
-extern int copy_from_user_real(void *dest, void __user *src, size_t count);
-
-#define finish_arch_switch(prev) do {					     \
-	set_fs(current->thread.mm_segment);				     \
-	account_vtime(prev, current);					     \
-} while (0)
-
-#define nop() asm volatile("nop")
-
-/*
- * Force strict CPU ordering.
- * And yes, this is required on UP too when we're talking
- * to devices.
- *
- * This is very similar to the ppc eieio/sync instruction in that is
- * does a checkpoint syncronisation & makes sure that 
- * all memory ops have completed wrt other CPU's ( see 7-15 POP  DJB ).
- */
-
-#define eieio()	asm volatile("bcr 15,0" : : : "memory")
-#define SYNC_OTHER_CORES(x)   eieio()
-#define mb()    eieio()
-#define rmb()   eieio()
-#define wmb()   eieio()
-#define read_barrier_depends() do { } while(0)
-#define smp_mb()       mb()
-#define smp_rmb()      rmb()
-#define smp_wmb()      wmb()
-#define smp_read_barrier_depends()    read_barrier_depends()
-#define smp_mb__before_clear_bit()     smp_mb()
-#define smp_mb__after_clear_bit()      smp_mb()
-
-
-#define set_mb(var, value)      do { var = value; mb(); } while (0)
-
-#ifdef __s390x__
-
-#define __ctl_load(array, low, high) ({				\
-	typedef struct { char _[sizeof(array)]; } addrtype;	\
-	asm volatile(						\
-		"	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	%1,%2,%0\n"			\
-		: "=Q" (*(addrtype *)(&array))			\
-		: "i" (low), "i" (high));			\
-	})
-
-#else /* __s390x__ */
-
-#define __ctl_load(array, low, high) ({				\
-	typedef struct { char _[sizeof(array)]; } addrtype;	\
-	asm volatile(						\
-		"	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	%1,%2,%0\n"			\
-		: "=Q" (*(addrtype *)(&array))			\
-		: "i" (low), "i" (high));			\
-	})
-
-#endif /* __s390x__ */
-
-#define __ctl_set_bit(cr, bit) ({	\
-	unsigned long __dummy;		\
-	__ctl_store(__dummy, cr, cr);	\
-	__dummy |= 1UL << (bit);	\
-	__ctl_load(__dummy, cr, cr);	\
-})
-
-#define __ctl_clear_bit(cr, bit) ({	\
-	unsigned long __dummy;		\
-	__ctl_store(__dummy, cr, cr);	\
-	__dummy &= ~(1UL << (bit));	\
-	__ctl_load(__dummy, cr, cr);	\
-})
-
-/*
- * Use to set psw mask except for the first byte which
- * won't be changed by this function.
- */
-static inline void
-__set_psw_mask(unsigned long mask)
-{
-	__load_psw_mask(mask | (arch_local_save_flags() & ~(-1UL >> 8)));
-}
-
-#define local_mcck_enable() \
-	__set_psw_mask(psw_kernel_bits | PSW_MASK_DAT | PSW_MASK_MCHECK)
-#define local_mcck_disable() \
-	__set_psw_mask(psw_kernel_bits | PSW_MASK_DAT)
-
-#ifdef CONFIG_SMP
-
-extern void smp_ctl_set_bit(int cr, int bit);
-extern void smp_ctl_clear_bit(int cr, int bit);
-#define ctl_set_bit(cr, bit) smp_ctl_set_bit(cr, bit)
-#define ctl_clear_bit(cr, bit) smp_ctl_clear_bit(cr, bit)
-
-#else
-
-#define ctl_set_bit(cr, bit) __ctl_set_bit(cr, bit)
-#define ctl_clear_bit(cr, bit) __ctl_clear_bit(cr, bit)
-
-#endif /* CONFIG_SMP */
-
-#define MAX_FACILITY_BIT (256*8)	/* stfle_fac_list has 256 bytes */
-
-/*
- * The test_facility function uses the bit odering where the MSB is bit 0.
- * That makes it easier to query facility bits with the bit number as
- * documented in the Principles of Operation.
- */
-static inline int test_facility(unsigned long nr)
-{
-	unsigned char *ptr;
-
-	if (nr >= MAX_FACILITY_BIT)
-		return 0;
-	ptr = (unsigned char *) &S390_lowcore.stfle_fac_list + (nr >> 3);
-	return (*ptr & (0x80 >> (nr & 7))) != 0;
-}
-
-static inline unsigned short stap(void)
-{
-	unsigned short cpu_address;
-
-	asm volatile("stap %0" : "=m" (cpu_address));
-	return cpu_address;
-}
-
-extern void (*_machine_restart)(char *command);
-extern void (*_machine_halt)(void);
-extern void (*_machine_power_off)(void);
-
-extern unsigned long arch_align_stack(unsigned long sp);
-
-static inline int tprot(unsigned long addr)
-{
-	int rc = -EFAULT;
-
-	asm volatile(
-		"	tprot	0(%1),0\n"
-		"0:	ipm	%0\n"
-		"	srl	%0,28\n"
-		"1:\n"
-		EX_TABLE(0b,1b)
-		: "+d" (rc) : "a" (addr) : "cc");
-	return rc;
-}
-
-#endif /* __KERNEL__ */
-
-#endif
diff --git a/arch/s390/include/asm/timer.h b/arch/s390/include/asm/timer.h
index 814243cafdfe..e63069ba39e3 100644
--- a/arch/s390/include/asm/timer.h
+++ b/arch/s390/include/asm/timer.h
@@ -33,8 +33,8 @@ struct vtimer_queue {
 	spinlock_t lock;
 	__u64 timer;		/* last programmed timer */
 	__u64 elapsed;		/* elapsed time of timer expire values */
-	__u64 idle;		/* temp var for idle */
-	int do_spt;		/* =1: reprogram cpu timer in idle */
+	__u64 idle_enter;	/* cpu timer on idle enter */
+	__u64 idle_exit;	/* cpu timer on idle exit */
 };
 
 extern void init_virt_timer(struct vtimer_list *timer);
diff --git a/arch/s390/include/asm/uaccess.h b/arch/s390/include/asm/uaccess.h
index 2b23885e81e9..8f2cada4f7c9 100644
--- a/arch/s390/include/asm/uaccess.h
+++ b/arch/s390/include/asm/uaccess.h
@@ -16,6 +16,7 @@
  */
 #include <linux/sched.h>
 #include <linux/errno.h>
+#include <asm/ctl_reg.h>
 
 #define VERIFY_READ     0
 #define VERIFY_WRITE    1
@@ -375,4 +376,9 @@ clear_user(void __user *to, unsigned long n)
 	return n;
 }
 
+extern int memcpy_real(void *, void *, size_t);
+extern void copy_to_absolute_zero(void *dest, void *src, size_t count);
+extern int copy_to_user_real(void __user *dest, void *src, size_t count);
+extern int copy_from_user_real(void *dest, void __user *src, size_t count);
+
 #endif /* __S390_UACCESS_H */
diff --git a/arch/s390/include/asm/vdso.h b/arch/s390/include/asm/vdso.h
index 533f35751aeb..c4a11cfad3c8 100644
--- a/arch/s390/include/asm/vdso.h
+++ b/arch/s390/include/asm/vdso.h
@@ -40,8 +40,8 @@ struct vdso_per_cpu_data {
 extern struct vdso_data *vdso_data;
 
 #ifdef CONFIG_64BIT
-int vdso_alloc_per_cpu(int cpu, struct _lowcore *lowcore);
-void vdso_free_per_cpu(int cpu, struct _lowcore *lowcore);
+int vdso_alloc_per_cpu(struct _lowcore *lowcore);
+void vdso_free_per_cpu(struct _lowcore *lowcore);
 #endif
 
 #endif /* __ASSEMBLY__ */