Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 updates from Martin Schwidefsky:
 "There is only one new feature in this pull for the 4.4 merge window,
  most of it is small enhancements, cleanup and bug fixes:

   - Add the s390 backend for the software dirty bit tracking.  This
     adds two new pgtable functions pte_clear_soft_dirty and
     pmd_clear_soft_dirty which is why there is a hit to
     arch/x86/include/asm/pgtable.h in this pull request.

   - A series of cleanup patches for the AP bus, this includes the
     removal of the support for two outdated crypto cards (PCICC and
     PCICA).

   - The irq handling / signaling on buffer full in the runtime
     instrumentation code is dropped.

   - Some micro optimizations: remove unnecessary memory barriers for a
     couple of functions: [smb_]rmb, [smb_]wmb, atomics, bitops, and for
     spin_unlock.  Use the builtin bswap if available and make
     test_and_set_bit_lock more cache friendly.

   - Statistics and a tracepoint for the diagnose calls to the
     hypervisor.

   - The CPU measurement facility support to sample KVM guests is
     improved.

   - The vector instructions are now always enabled for user space
     processes if the hardware has the vector facility.  This simplifies
     the FPU handling code.  The fpu-internal.h header is split into fpu
     internals, api and types just like x86.

   - Cleanup and improvements for the common I/O layer.

   - Rework udelay to solve a problem with kprobe.  udelay has busy loop
     semantics but still uses an idle processor state for the wait"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (66 commits)
  s390: remove runtime instrumentation interrupts
  s390/cio: de-duplicate subchannel validation
  s390/css: unneeded initialization in for_each_subchannel
  s390/Kconfig: use builtin bswap
  s390/dasd: fix disconnected device with valid path mask
  s390/dasd: fix invalid PAV assignment after suspend/resume
  s390/dasd: fix double free in dasd_eckd_read_conf
  s390/kernel: fix ptrace peek/poke for floating point registers
  s390/cio: move ccw_device_stlck functions
  s390/cio: move ccw_device_call_handler
  s390/topology: reduce per_cpu() invocations
  s390/nmi: reduce size of percpu variable
  s390/nmi: fix terminology
  s390/nmi: remove casts
  s390/nmi: remove pointless error strings
  s390: don't store registers on disabled wait anymore
  s390: get rid of __set_psw_mask()
  s390/fpu: split fpu-internal.h into fpu internals, api, and type headers
  s390/dasd: fix list_del corruption after lcu changes
  s390/spinlock: remove unneeded serializations at unlock
  ...

28 files changed, 467 insertions, 283 deletions

diff --git a/arch/s390/include/asm/appldata.h b/arch/s390/include/asm/appldata.h
index 16887c5fd989..a6263d4e8e56 100644
--- a/arch/s390/include/asm/appldata.h
+++ b/arch/s390/include/asm/appldata.h
@@ -7,6 +7,7 @@
 #ifndef _ASM_S390_APPLDATA_H
 #define _ASM_S390_APPLDATA_H
 
+#include <asm/diag.h>
 #include <asm/io.h>
 
 #define APPLDATA_START_INTERVAL_REC	0x80
@@ -53,6 +54,7 @@ static inline int appldata_asm(struct appldata_product_id *id,
 	parm_list.buffer_length = length;
 	parm_list.product_id_addr = (unsigned long) id;
 	parm_list.buffer_addr = virt_to_phys(buffer);
+	diag_stat_inc(DIAG_STAT_X0DC);
 	asm volatile(
 		"	diag	%1,%0,0xdc"
 		: "=d" (ry)
diff --git a/arch/s390/include/asm/atomic.h b/arch/s390/include/asm/atomic.h
index 117fa5c921c1..911064aa59b2 100644
--- a/arch/s390/include/asm/atomic.h
+++ b/arch/s390/include/asm/atomic.h
@@ -36,7 +36,6 @@
 									\
 	typecheck(atomic_t *, ptr);					\
 	asm volatile(							\
-		__barrier						\
 		op_string "	%0,%2,%1\n"				\
 		__barrier						\
 		: "=d" (old_val), "+Q" ((ptr)->counter)			\
@@ -180,7 +179,6 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u)
 									\
 	typecheck(atomic64_t *, ptr);					\
 	asm volatile(							\
-		__barrier						\
 		op_string "	%0,%2,%1\n"				\
 		__barrier						\
 		: "=d" (old_val), "+Q" ((ptr)->counter)			\
diff --git a/arch/s390/include/asm/barrier.h b/arch/s390/include/asm/barrier.h
index d48fe0162331..d68e11e0df5e 100644
--- a/arch/s390/include/asm/barrier.h
+++ b/arch/s390/include/asm/barrier.h
@@ -22,10 +22,10 @@
 
 #define mb() do {  asm volatile(__ASM_BARRIER : : : "memory"); } while (0)
 
-#define rmb()				mb()
-#define wmb()				mb()
-#define dma_rmb()			rmb()
-#define dma_wmb()			wmb()
+#define rmb()				barrier()
+#define wmb()				barrier()
+#define dma_rmb()			mb()
+#define dma_wmb()			mb()
 #define smp_mb()			mb()
 #define smp_rmb()			rmb()
 #define smp_wmb()			wmb()
diff --git a/arch/s390/include/asm/bitops.h b/arch/s390/include/asm/bitops.h
index 9b68e98a724f..8043f10da6b5 100644
--- a/arch/s390/include/asm/bitops.h
+++ b/arch/s390/include/asm/bitops.h
@@ -11,30 +11,25 @@
  * big-endian system because, unlike little endian, the number of each
  * bit depends on the word size.
  *
- * The bitop functions are defined to work on unsigned longs, so for an
- * s390x system the bits end up numbered:
+ * The bitop functions are defined to work on unsigned longs, so the bits
+ * end up numbered:
  *   |63..............0|127............64|191...........128|255...........192|
- * and on s390:
- *   |31.....0|63....32|95....64|127...96|159..128|191..160|223..192|255..224|
  *
  * There are a few little-endian macros used mostly for filesystem
- * bitmaps, these work on similar bit arrays layouts, but
- * byte-oriented:
+ * bitmaps, these work on similar bit array layouts, but byte-oriented:
  *   |7...0|15...8|23...16|31...24|39...32|47...40|55...48|63...56|
  *
- * The main difference is that bit 3-5 (64b) or 3-4 (32b) in the bit
- * number field needs to be reversed compared to the big-endian bit
- * fields. This can be achieved by XOR with 0x38 (64b) or 0x18 (32b).
+ * The main difference is that bit 3-5 in the bit number field needs to be
+ * reversed compared to the big-endian bit fields. This can be achieved by
+ * XOR with 0x38.
  *
- * We also have special functions which work with an MSB0 encoding:
- * on an s390x system the bits are numbered:
+ * We also have special functions which work with an MSB0 encoding.
+ * The bits are numbered:
  *   |0..............63|64............127|128...........191|192...........255|
- * and on s390:
- *   |0.....31|32....63|64....95|96...127|128..159|160..191|192..223|224..255|
  *
- * The main difference is that bit 0-63 (64b) or 0-31 (32b) in the bit
- * number field needs to be reversed compared to the LSB0 encoded bit
- * fields. This can be achieved by XOR with 0x3f (64b) or 0x1f (32b).
+ * The main difference is that bit 0-63 in the bit number field needs to be
+ * reversed compared to the LSB0 encoded bit fields. This can be achieved by
+ * XOR with 0x3f.
  *
  */
 
@@ -64,7 +59,6 @@
 								\
 	typecheck(unsigned long *, (__addr));			\
 	asm volatile(						\
-		__barrier					\
 		__op_string "	%0,%2,%1\n"			\
 		__barrier					\
 		: "=d" (__old),	"+Q" (*(__addr))		\
@@ -276,12 +270,32 @@ static inline int test_bit(unsigned long nr, const volatile unsigned long *ptr)
 	return (*addr >> (nr & 7)) & 1;
 }
 
+static inline int test_and_set_bit_lock(unsigned long nr,
+					volatile unsigned long *ptr)
+{
+	if (test_bit(nr, ptr))
+		return 1;
+	return test_and_set_bit(nr, ptr);
+}
+
+static inline void clear_bit_unlock(unsigned long nr,
+				    volatile unsigned long *ptr)
+{
+	smp_mb__before_atomic();
+	clear_bit(nr, ptr);
+}
+
+static inline void __clear_bit_unlock(unsigned long nr,
+				      volatile unsigned long *ptr)
+{
+	smp_mb();
+	__clear_bit(nr, ptr);
+}
+
 /*
  * Functions which use MSB0 bit numbering.
- * On an s390x system the bits are numbered:
+ * The bits are numbered:
  *   |0..............63|64............127|128...........191|192...........255|
- * and on s390:
- *   |0.....31|32....63|64....95|96...127|128..159|160..191|192..223|224..255|
  */
 unsigned long find_first_bit_inv(const unsigned long *addr, unsigned long size);
 unsigned long find_next_bit_inv(const unsigned long *addr, unsigned long size,
@@ -446,7 +460,6 @@ static inline int fls(int word)
 #include <asm-generic/bitops/ffz.h>
 #include <asm-generic/bitops/find.h>
 #include <asm-generic/bitops/hweight.h>
-#include <asm-generic/bitops/lock.h>
 #include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/le.h>
 #include <asm-generic/bitops/ext2-atomic-setbit.h>
diff --git a/arch/s390/include/asm/cio.h b/arch/s390/include/asm/cio.h
index 096339207764..0c5d8ee657f0 100644
--- a/arch/s390/include/asm/cio.h
+++ b/arch/s390/include/asm/cio.h
@@ -5,6 +5,7 @@
 #define _ASM_S390_CIO_H_
 
 #include <linux/spinlock.h>
+#include <linux/bitops.h>
 #include <asm/types.h>
 
 #define LPM_ANYPATH 0xff
@@ -296,6 +297,15 @@ static inline int ccw_dev_id_is_equal(struct ccw_dev_id *dev_id1,
 	return 0;
 }
 
+/**
+ * pathmask_to_pos() - find the position of the left-most bit in a pathmask
+ * @mask: pathmask with at least one bit set
+ */
+static inline u8 pathmask_to_pos(u8 mask)
+{
+	return 8 - ffs(mask);
+}
+
 void channel_subsystem_reinit(void);
 extern void css_schedule_reprobe(void);
 
diff --git a/arch/s390/include/asm/cmb.h b/arch/s390/include/asm/cmb.h
index 806eac12e3bd..ed2630c23f90 100644
--- a/arch/s390/include/asm/cmb.h
+++ b/arch/s390/include/asm/cmb.h
@@ -6,6 +6,7 @@
 struct ccw_device;
 extern int enable_cmf(struct ccw_device *cdev);
 extern int disable_cmf(struct ccw_device *cdev);
+extern int __disable_cmf(struct ccw_device *cdev);
 extern u64 cmf_read(struct ccw_device *cdev, int index);
 extern int cmf_readall(struct ccw_device *cdev, struct cmbdata *data);
 
diff --git a/arch/s390/include/asm/cmpxchg.h b/arch/s390/include/asm/cmpxchg.h
index 411464f4c97a..24ea6948e32b 100644
--- a/arch/s390/include/asm/cmpxchg.h
+++ b/arch/s390/include/asm/cmpxchg.h
@@ -32,7 +32,7 @@
 	__old;								\
 })
 
-#define __cmpxchg_double_op(p1, p2, o1, o2, n1, n2, insn)		\
+#define __cmpxchg_double(p1, p2, o1, o2, n1, n2)			\
 ({									\
 	register __typeof__(*(p1)) __old1 asm("2") = (o1);		\
 	register __typeof__(*(p2)) __old2 asm("3") = (o2);		\
@@ -40,7 +40,7 @@
 	register __typeof__(*(p2)) __new2 asm("5") = (n2);		\
 	int cc;								\
 	asm volatile(							\
-			insn   " %[old],%[new],%[ptr]\n"		\
+		"	cdsg	%[old],%[new],%[ptr]\n"			\
 		"	ipm	%[cc]\n"				\
 		"	srl	%[cc],28"				\
 		: [cc] "=d" (cc), [old] "+d" (__old1), "+d" (__old2)	\
@@ -50,30 +50,6 @@
 	!cc;								\
 })
 
-#define __cmpxchg_double_4(p1, p2, o1, o2, n1, n2) \
-	__cmpxchg_double_op(p1, p2, o1, o2, n1, n2, "cds")
-
-#define __cmpxchg_double_8(p1, p2, o1, o2, n1, n2) \
-	__cmpxchg_double_op(p1, p2, o1, o2, n1, n2, "cdsg")
-
-extern void __cmpxchg_double_called_with_bad_pointer(void);
-
-#define __cmpxchg_double(p1, p2, o1, o2, n1, n2)			\
-({									\
-	int __ret;							\
-	switch (sizeof(*(p1))) {					\
-	case 4:								\
-		__ret = __cmpxchg_double_4(p1, p2, o1, o2, n1, n2);	\
-		break;							\
-	case 8:								\
-		__ret = __cmpxchg_double_8(p1, p2, o1, o2, n1, n2);	\
-		break;							\
-	default:							\
-		__cmpxchg_double_called_with_bad_pointer();		\
-	}								\
-	__ret;								\
-})
-
 #define cmpxchg_double(p1, p2, o1, o2, n1, n2)				\
 ({									\
 	__typeof__(p1) __p1 = (p1);					\
@@ -81,7 +57,7 @@ extern void __cmpxchg_double_called_with_bad_pointer(void);
 	BUILD_BUG_ON(sizeof(*(p1)) != sizeof(long));			\
 	BUILD_BUG_ON(sizeof(*(p2)) != sizeof(long));			\
 	VM_BUG_ON((unsigned long)((__p1) + 1) != (unsigned long)(__p2));\
-	__cmpxchg_double_8(__p1, __p2, o1, o2, n1, n2);			\
+	__cmpxchg_double(__p1, __p2, o1, o2, n1, n2);			\
 })
 
 #define system_has_cmpxchg_double()	1
diff --git a/arch/s390/include/asm/cpu_mf.h b/arch/s390/include/asm/cpu_mf.h
index 5243a8679a1d..9dd04b9e9782 100644
--- a/arch/s390/include/asm/cpu_mf.h
+++ b/arch/s390/include/asm/cpu_mf.h
@@ -22,15 +22,10 @@
 #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_RI_HALTED	(1 <<  5)	/* run-time instr. halted */
-#define CPU_MF_INT_RI_BUF_FULL	(1 <<  4)	/* run-time instr. program
-						   buffer full */
-
 #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)
-#define CPU_MF_INT_RI_MASK	(CPU_MF_INT_RI_HALTED|CPU_MF_INT_RI_BUF_FULL)
 
 /* CPU measurement facility support */
 static inline int cpum_cf_avail(void)
diff --git a/arch/s390/include/asm/ctl_reg.h b/arch/s390/include/asm/ctl_reg.h
index 17a373576868..d7697ab802f6 100644
--- a/arch/s390/include/asm/ctl_reg.h
+++ b/arch/s390/include/asm/ctl_reg.h
@@ -46,8 +46,6 @@ static inline void __ctl_clear_bit(unsigned int cr, unsigned int bit)
 	__ctl_load(reg, cr, cr);
 }
 
-void __ctl_set_vx(void);
-
 void smp_ctl_set_bit(int cr, int bit);
 void smp_ctl_clear_bit(int cr, int bit);
 
diff --git a/arch/s390/include/asm/diag.h b/arch/s390/include/asm/diag.h
index 7e91c58072e2..5fac921c1c42 100644
--- a/arch/s390/include/asm/diag.h
+++ b/arch/s390/include/asm/diag.h
@@ -8,6 +8,34 @@
 #ifndef _ASM_S390_DIAG_H
 #define _ASM_S390_DIAG_H
 
+#include <linux/percpu.h>
+
+enum diag_stat_enum {
+	DIAG_STAT_X008,
+	DIAG_STAT_X00C,
+	DIAG_STAT_X010,
+	DIAG_STAT_X014,
+	DIAG_STAT_X044,
+	DIAG_STAT_X064,
+	DIAG_STAT_X09C,
+	DIAG_STAT_X0DC,
+	DIAG_STAT_X204,
+	DIAG_STAT_X210,
+	DIAG_STAT_X224,
+	DIAG_STAT_X250,
+	DIAG_STAT_X258,
+	DIAG_STAT_X288,
+	DIAG_STAT_X2C4,
+	DIAG_STAT_X2FC,
+	DIAG_STAT_X304,
+	DIAG_STAT_X308,
+	DIAG_STAT_X500,
+	NR_DIAG_STAT
+};
+
+void diag_stat_inc(enum diag_stat_enum nr);
+void diag_stat_inc_norecursion(enum diag_stat_enum nr);
+
 /*
  * Diagnose 10: Release page range
  */
@@ -18,6 +46,7 @@ static inline void diag10_range(unsigned long start_pfn, unsigned long num_pfn)
 	start_addr = start_pfn << PAGE_SHIFT;
 	end_addr = (start_pfn + num_pfn - 1) << PAGE_SHIFT;
 
+	diag_stat_inc(DIAG_STAT_X010);
 	asm volatile(
 		"0:	diag	%0,%1,0x10\n"
 		"1:\n"
diff --git a/arch/s390/include/asm/etr.h b/arch/s390/include/asm/etr.h
index f7e5c36688c3..105f90e63a0e 100644
--- a/arch/s390/include/asm/etr.h
+++ b/arch/s390/include/asm/etr.h
@@ -211,8 +211,9 @@ static inline int etr_ptff(void *ptff_block, unsigned int func)
 #define ETR_PTFF_SGS	0x43	/* set gross steering rate */
 
 /* Functions needed by the machine check handler */
-void etr_switch_to_local(void);
-void etr_sync_check(void);
+int etr_switch_to_local(void);
+int etr_sync_check(void);
+void etr_queue_work(void);
 
 /* notifier for syncs */
 extern struct atomic_notifier_head s390_epoch_delta_notifier;
@@ -253,7 +254,8 @@ struct stp_sstpi {
 } __attribute__ ((packed));
 
 /* Functions needed by the machine check handler */
-void stp_sync_check(void);
-void stp_island_check(void);
+int stp_sync_check(void);
+int stp_island_check(void);
+void stp_queue_work(void);
 
 #endif /* __S390_ETR_H */
diff --git a/arch/s390/include/asm/fpu/api.h b/arch/s390/include/asm/fpu/api.h
new file mode 100644
index 000000000000..5e04f3cbd320
--- /dev/null
+++ b/arch/s390/include/asm/fpu/api.h
@@ -0,0 +1,30 @@
+/*
+ * In-kernel FPU support functions
+ *
+ * Copyright IBM Corp. 2015
+ * Author(s): Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
+ */
+
+#ifndef _ASM_S390_FPU_API_H
+#define _ASM_S390_FPU_API_H
+
+void save_fpu_regs(void);
+
+static inline int test_fp_ctl(u32 fpc)
+{
+	u32 orig_fpc;
+	int rc;
+
+	asm volatile(
+		"	efpc    %1\n"
+		"	sfpc	%2\n"
+		"0:	sfpc	%1\n"
+		"	la	%0,0\n"
+		"1:\n"
+		EX_TABLE(0b,1b)
+		: "=d" (rc), "=d" (orig_fpc)
+		: "d" (fpc), "0" (-EINVAL));
+	return rc;
+}
+
+#endif /* _ASM_S390_FPU_API_H */
diff --git a/arch/s390/include/asm/fpu-internal.h b/arch/s390/include/asm/fpu/internal.h
index 55dc2c0fb40a..2559b16da525 100644
--- a/arch/s390/include/asm/fpu-internal.h
+++ b/arch/s390/include/asm/fpu/internal.h
@@ -1,5 +1,5 @@
 /*
- * General floating pointer and vector register helpers
+ * FPU state and register content conversion primitives
  *
  * Copyright IBM Corp. 2015
  * Author(s): Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
@@ -8,50 +8,9 @@
 #ifndef _ASM_S390_FPU_INTERNAL_H
 #define _ASM_S390_FPU_INTERNAL_H
 
-#define FPU_USE_VX		1	/* Vector extension is active */
-
-#ifndef __ASSEMBLY__
-
-#include <linux/errno.h>
 #include <linux/string.h>
-#include <asm/linkage.h>
 #include <asm/ctl_reg.h>
-#include <asm/sigcontext.h>
-
-struct fpu {
-	__u32 fpc;			/* Floating-point control */
-	__u32 flags;
-	union {
-		void *regs;
-		freg_t *fprs;		/* Floating-point register save area */
-		__vector128 *vxrs;	/* Vector register save area */
-	};
-};
-
-void save_fpu_regs(void);
-
-#define is_vx_fpu(fpu) (!!((fpu)->flags & FPU_USE_VX))
-#define is_vx_task(tsk) (!!((tsk)->thread.fpu.flags & FPU_USE_VX))
-
-/* VX array structure for address operand constraints in inline assemblies */
-struct vx_array { __vector128 _[__NUM_VXRS]; };
-
-static inline int test_fp_ctl(u32 fpc)
-{
-	u32 orig_fpc;
-	int rc;
-
-	asm volatile(
-		"	efpc    %1\n"
-		"	sfpc	%2\n"
-		"0:	sfpc	%1\n"
-		"	la	%0,0\n"
-		"1:\n"
-		EX_TABLE(0b,1b)
-		: "=d" (rc), "=d" (orig_fpc)
-		: "d" (fpc), "0" (-EINVAL));
-	return rc;
-}
+#include <asm/fpu/types.h>
 
 static inline void save_vx_regs_safe(__vector128 *vxrs)
 {
@@ -89,7 +48,7 @@ static inline void convert_fp_to_vx(__vector128 *vxrs, freg_t *fprs)
 static inline void fpregs_store(_s390_fp_regs *fpregs, struct fpu *fpu)
 {
 	fpregs->pad = 0;
-	if (is_vx_fpu(fpu))
+	if (MACHINE_HAS_VX)
 		convert_vx_to_fp((freg_t *)&fpregs->fprs, fpu->vxrs);
 	else
 		memcpy((freg_t *)&fpregs->fprs, fpu->fprs,
@@ -98,13 +57,11 @@ static inline void fpregs_store(_s390_fp_regs *fpregs, struct fpu *fpu)
 
 static inline void fpregs_load(_s390_fp_regs *fpregs, struct fpu *fpu)
 {
-	if (is_vx_fpu(fpu))
+	if (MACHINE_HAS_VX)
 		convert_fp_to_vx(fpu->vxrs, (freg_t *)&fpregs->fprs);
 	else
 		memcpy(fpu->fprs, (freg_t *)&fpregs->fprs,
 		       sizeof(fpregs->fprs));
 }
 
-#endif
-
 #endif /* _ASM_S390_FPU_INTERNAL_H */
diff --git a/arch/s390/include/asm/fpu/types.h b/arch/s390/include/asm/fpu/types.h
new file mode 100644
index 000000000000..14a8b0c14f87
--- /dev/null
+++ b/arch/s390/include/asm/fpu/types.h
@@ -0,0 +1,25 @@
+/*
+ * FPU data structures
+ *
+ * Copyright IBM Corp. 2015
+ * Author(s): Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
+ */
+
+#ifndef _ASM_S390_FPU_TYPES_H
+#define _ASM_S390_FPU_TYPES_H
+
+#include <asm/sigcontext.h>
+
+struct fpu {
+	__u32 fpc;			/* Floating-point control */
+	union {
+		void *regs;
+		freg_t *fprs;		/* Floating-point register save area */
+		__vector128 *vxrs;	/* Vector register save area */
+	};
+};
+
+/* VX array structure for address operand constraints in inline assemblies */
+struct vx_array { __vector128 _[__NUM_VXRS]; };
+
+#endif /* _ASM_S390_FPU_TYPES_H */
diff --git a/arch/s390/include/asm/idle.h b/arch/s390/include/asm/idle.h
index 113cd963dbbe..51ff96d9f287 100644
--- a/arch/s390/include/asm/idle.h
+++ b/arch/s390/include/asm/idle.h
@@ -24,4 +24,6 @@ struct s390_idle_data {
 extern struct device_attribute dev_attr_idle_count;
 extern struct device_attribute dev_attr_idle_time_us;
 
+void psw_idle(struct s390_idle_data *, unsigned long);
+
 #endif /* _S390_IDLE_H */
diff --git a/arch/s390/include/asm/irq.h b/arch/s390/include/asm/irq.h
index ff95d15a2384..f97b055de76a 100644
--- a/arch/s390/include/asm/irq.h
+++ b/arch/s390/include/asm/irq.h
@@ -47,7 +47,6 @@ enum interruption_class {
 	IRQEXT_IUC,
 	IRQEXT_CMS,
 	IRQEXT_CMC,
-	IRQEXT_CMR,
 	IRQEXT_FTP,
 	IRQIO_CIO,
 	IRQIO_QAI,
@@ -96,6 +95,19 @@ enum irq_subclass {
 	IRQ_SUBCLASS_SERVICE_SIGNAL = 9,
 };
 
+#define CR0_IRQ_SUBCLASS_MASK					  \
+	((1UL << (63 - 30))  /* Warning Track */		| \
+	 (1UL << (63 - 48))  /* Malfunction Alert */		| \
+	 (1UL << (63 - 49))  /* Emergency Signal */		| \
+	 (1UL << (63 - 50))  /* External Call */		| \
+	 (1UL << (63 - 52))  /* Clock Comparator */		| \
+	 (1UL << (63 - 53))  /* CPU Timer */			| \
+	 (1UL << (63 - 54))  /* Service Signal */		| \
+	 (1UL << (63 - 57))  /* Interrupt Key */		| \
+	 (1UL << (63 - 58))  /* Measurement Alert */		| \
+	 (1UL << (63 - 59))  /* Timing Alert */			| \
+	 (1UL << (63 - 62))) /* IUCV */
+
 void irq_subclass_register(enum irq_subclass subclass);
 void irq_subclass_unregister(enum irq_subclass subclass);
 
diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h
index 8ced426091e1..7f654308817c 100644
--- a/arch/s390/include/asm/kvm_host.h
+++ b/arch/s390/include/asm/kvm_host.h
@@ -22,7 +22,7 @@
 #include <linux/kvm.h>
 #include <asm/debug.h>
 #include <asm/cpu.h>
-#include <asm/fpu-internal.h>
+#include <asm/fpu/api.h>
 #include <asm/isc.h>
 
 #define KVM_MAX_VCPUS 64
diff --git a/arch/s390/include/asm/kvm_para.h b/arch/s390/include/asm/kvm_para.h
index e0f842308a68..41393052ac57 100644
--- a/arch/s390/include/asm/kvm_para.h
+++ b/arch/s390/include/asm/kvm_para.h
@@ -27,10 +27,9 @@
 #define __S390_KVM_PARA_H
 
 #include <uapi/asm/kvm_para.h>
+#include <asm/diag.h>
 
-
-
-static inline long kvm_hypercall0(unsigned long nr)
+static inline long __kvm_hypercall0(unsigned long nr)
 {
 	register unsigned long __nr asm("1") = nr;
 	register long __rc asm("2");
@@ -40,7 +39,13 @@ static inline long kvm_hypercall0(unsigned long nr)
 	return __rc;
 }
 
-static inline long kvm_hypercall1(unsigned long nr, unsigned long p1)
+static inline long kvm_hypercall0(unsigned long nr)
+{
+	diag_stat_inc(DIAG_STAT_X500);
+	return __kvm_hypercall0(nr);
+}
+
+static inline long __kvm_hypercall1(unsigned long nr, unsigned long p1)
 {
 	register unsigned long __nr asm("1") = nr;
 	register unsigned long __p1 asm("2") = p1;
@@ -51,7 +56,13 @@ static inline long kvm_hypercall1(unsigned long nr, unsigned long p1)
 	return __rc;
 }
 
-static inline long kvm_hypercall2(unsigned long nr, unsigned long p1,
+static inline long kvm_hypercall1(unsigned long nr, unsigned long p1)
+{
+	diag_stat_inc(DIAG_STAT_X500);
+	return __kvm_hypercall1(nr, p1);
+}
+
+static inline long __kvm_hypercall2(unsigned long nr, unsigned long p1,
 			       unsigned long p2)
 {
 	register unsigned long __nr asm("1") = nr;
@@ -65,7 +76,14 @@ static inline long kvm_hypercall2(unsigned long nr, unsigned long p1,
 	return __rc;
 }
 
-static inline long kvm_hypercall3(unsigned long nr, unsigned long p1,
+static inline long kvm_hypercall2(unsigned long nr, unsigned long p1,
+			       unsigned long p2)
+{
+	diag_stat_inc(DIAG_STAT_X500);
+	return __kvm_hypercall2(nr, p1, p2);
+}
+
+static inline long __kvm_hypercall3(unsigned long nr, unsigned long p1,
 			       unsigned long p2, unsigned long p3)
 {
 	register unsigned long __nr asm("1") = nr;
@@ -80,8 +98,14 @@ static inline long kvm_hypercall3(unsigned long nr, unsigned long p1,
 	return __rc;
 }
 
+static inline long kvm_hypercall3(unsigned long nr, unsigned long p1,
+			       unsigned long p2, unsigned long p3)
+{
+	diag_stat_inc(DIAG_STAT_X500);
+	return __kvm_hypercall3(nr, p1, p2, p3);
+}
 
-static inline long kvm_hypercall4(unsigned long nr, unsigned long p1,
+static inline long __kvm_hypercall4(unsigned long nr, unsigned long p1,
 			       unsigned long p2, unsigned long p3,
 			       unsigned long p4)
 {
@@ -98,7 +122,15 @@ static inline long kvm_hypercall4(unsigned long nr, unsigned long p1,
 	return __rc;
 }
 
-static inline long kvm_hypercall5(unsigned long nr, unsigned long p1,
+static inline long kvm_hypercall4(unsigned long nr, unsigned long p1,
+			       unsigned long p2, unsigned long p3,
+			       unsigned long p4)
+{
+	diag_stat_inc(DIAG_STAT_X500);
+	return __kvm_hypercall4(nr, p1, p2, p3, p4);
+}
+
+static inline long __kvm_hypercall5(unsigned long nr, unsigned long p1,
 			       unsigned long p2, unsigned long p3,
 			       unsigned long p4, unsigned long p5)
 {
@@ -116,7 +148,15 @@ static inline long kvm_hypercall5(unsigned long nr, unsigned long p1,
 	return __rc;
 }
 
-static inline long kvm_hypercall6(unsigned long nr, unsigned long p1,
+static inline long kvm_hypercall5(unsigned long nr, unsigned long p1,
+			       unsigned long p2, unsigned long p3,
+			       unsigned long p4, unsigned long p5)
+{
+	diag_stat_inc(DIAG_STAT_X500);
+	return __kvm_hypercall5(nr, p1, p2, p3, p4, p5);
+}
+
+static inline long __kvm_hypercall6(unsigned long nr, unsigned long p1,
 			       unsigned long p2, unsigned long p3,
 			       unsigned long p4, unsigned long p5,
 			       unsigned long p6)
@@ -137,6 +177,15 @@ static inline long kvm_hypercall6(unsigned long nr, unsigned long p1,
 	return __rc;
 }
 
+static inline long kvm_hypercall6(unsigned long nr, unsigned long p1,
+			       unsigned long p2, unsigned long p3,
+			       unsigned long p4, unsigned long p5,
+			       unsigned long p6)
+{
+	diag_stat_inc(DIAG_STAT_X500);
+	return __kvm_hypercall6(nr, p1, p2, p3, p4, p5, p6);
+}
+
 /* kvm on s390 is always paravirtualization enabled */
 static inline int kvm_para_available(void)
 {
diff --git a/arch/s390/include/asm/lowcore.h b/arch/s390/include/asm/lowcore.h
index 663f23e37460..afe1cfebf1a4 100644
--- a/arch/s390/include/asm/lowcore.h
+++ b/arch/s390/include/asm/lowcore.h
@@ -67,7 +67,7 @@ struct _lowcore {
 	__u8	pad_0x00c4[0x00c8-0x00c4];	/* 0x00c4 */
 	__u32	stfl_fac_list;			/* 0x00c8 */
 	__u8	pad_0x00cc[0x00e8-0x00cc];	/* 0x00cc */
-	__u32	mcck_interruption_code[2];	/* 0x00e8 */
+	__u64	mcck_interruption_code;		/* 0x00e8 */
 	__u8	pad_0x00f0[0x00f4-0x00f0];	/* 0x00f0 */
 	__u32	external_damage_code;		/* 0x00f4 */
 	__u64	failing_storage_address;	/* 0x00f8 */
@@ -132,7 +132,14 @@ struct _lowcore {
 	/* Address space pointer. */
 	__u64	kernel_asce;			/* 0x0358 */
 	__u64	user_asce;			/* 0x0360 */
-	__u64	current_pid;			/* 0x0368 */
+
+	/*
+	 * The lpp and current_pid fields form a
+	 * 64-bit value that is set as program
+	 * parameter with the LPP instruction.
+	 */
+	__u32	lpp;				/* 0x0368 */
+	__u32	current_pid;			/* 0x036c */
 
 	/* SMP info area */
 	__u32	cpu_nr;				/* 0x0370 */
diff --git a/arch/s390/include/asm/nmi.h b/arch/s390/include/asm/nmi.h
index 3027a5a72b74..b75fd910386a 100644
--- a/arch/s390/include/asm/nmi.h
+++ b/arch/s390/include/asm/nmi.h
@@ -11,51 +11,62 @@
 #ifndef _ASM_S390_NMI_H
 #define _ASM_S390_NMI_H
 
+#include <linux/const.h>
 #include <linux/types.h>
 
-struct mci {
-	__u32 sd :  1; /* 00 system damage */
-	__u32 pd :  1; /* 01 instruction-processing damage */
-	__u32 sr :  1; /* 02 system recovery */
-	__u32	 :  1; /* 03 */
-	__u32 cd :  1; /* 04 timing-facility damage */
-	__u32 ed :  1; /* 05 external damage */
-	__u32	 :  1; /* 06 */
-	__u32 dg :  1; /* 07 degradation */
-	__u32 w  :  1; /* 08 warning pending */
-	__u32 cp :  1; /* 09 channel-report pending */
-	__u32 sp :  1; /* 10 service-processor damage */
-	__u32 ck :  1; /* 11 channel-subsystem damage */
-	__u32	 :  2; /* 12-13 */
-	__u32 b  :  1; /* 14 backed up */
-	__u32	 :  1; /* 15 */
-	__u32 se :  1; /* 16 storage error uncorrected */
-	__u32 sc :  1; /* 17 storage error corrected */
-	__u32 ke :  1; /* 18 storage-key error uncorrected */
-	__u32 ds :  1; /* 19 storage degradation */
-	__u32 wp :  1; /* 20 psw mwp validity */
-	__u32 ms :  1; /* 21 psw mask and key validity */
-	__u32 pm :  1; /* 22 psw program mask and cc validity */
-	__u32 ia :  1; /* 23 psw instruction address validity */
-	__u32 fa :  1; /* 24 failing storage address validity */
-	__u32 vr :  1; /* 25 vector register validity */
-	__u32 ec :  1; /* 26 external damage code validity */
-	__u32 fp :  1; /* 27 floating point register validity */
-	__u32 gr :  1; /* 28 general register validity */
-	__u32 cr :  1; /* 29 control register validity */
-	__u32	 :  1; /* 30 */
-	__u32 st :  1; /* 31 storage logical validity */
-	__u32 ie :  1; /* 32 indirect storage error */
-	__u32 ar :  1; /* 33 access register validity */
-	__u32 da :  1; /* 34 delayed access exception */
-	__u32	 :  7; /* 35-41 */
-	__u32 pr :  1; /* 42 tod programmable register validity */
-	__u32 fc :  1; /* 43 fp control register validity */
-	__u32 ap :  1; /* 44 ancillary report */
-	__u32	 :  1; /* 45 */
-	__u32 ct :  1; /* 46 cpu timer validity */
-	__u32 cc :  1; /* 47 clock comparator validity */
-	__u32	 : 16; /* 47-63 */
+#define MCCK_CODE_SYSTEM_DAMAGE		_BITUL(63)
+#define MCCK_CODE_CPU_TIMER_VALID	_BITUL(63 - 46)
+#define MCCK_CODE_PSW_MWP_VALID		_BITUL(63 - 20)
+#define MCCK_CODE_PSW_IA_VALID		_BITUL(63 - 23)
+
+#ifndef __ASSEMBLY__
+
+union mci {
+	unsigned long val;
+	struct {
+		u64 sd :  1; /* 00 system damage */
+		u64 pd :  1; /* 01 instruction-processing damage */
+		u64 sr :  1; /* 02 system recovery */
+		u64    :  1; /* 03 */
+		u64 cd :  1; /* 04 timing-facility damage */
+		u64 ed :  1; /* 05 external damage */
+		u64    :  1; /* 06 */
+		u64 dg :  1; /* 07 degradation */
+		u64 w  :  1; /* 08 warning pending */
+		u64 cp :  1; /* 09 channel-report pending */
+		u64 sp :  1; /* 10 service-processor damage */
+		u64 ck :  1; /* 11 channel-subsystem damage */
+		u64    :  2; /* 12-13 */
+		u64 b  :  1; /* 14 backed up */
+		u64    :  1; /* 15 */
+		u64 se :  1; /* 16 storage error uncorrected */
+		u64 sc :  1; /* 17 storage error corrected */
+		u64 ke :  1; /* 18 storage-key error uncorrected */
+		u64 ds :  1; /* 19 storage degradation */
+		u64 wp :  1; /* 20 psw mwp validity */
+		u64 ms :  1; /* 21 psw mask and key validity */
+		u64 pm :  1; /* 22 psw program mask and cc validity */
+		u64 ia :  1; /* 23 psw instruction address validity */
+		u64 fa :  1; /* 24 failing storage address validity */
+		u64 vr :  1; /* 25 vector register validity */
+		u64 ec :  1; /* 26 external damage code validity */
+		u64 fp :  1; /* 27 floating point register validity */
+		u64 gr :  1; /* 28 general register validity */
+		u64 cr :  1; /* 29 control register validity */
+		u64    :  1; /* 30 */
+		u64 st :  1; /* 31 storage logical validity */
+		u64 ie :  1; /* 32 indirect storage error */
+		u64 ar :  1; /* 33 access register validity */
+		u64 da :  1; /* 34 delayed access exception */
+		u64    :  7; /* 35-41 */
+		u64 pr :  1; /* 42 tod programmable register validity */
+		u64 fc :  1; /* 43 fp control register validity */
+		u64 ap :  1; /* 44 ancillary report */
+		u64    :  1; /* 45 */
+		u64 ct :  1; /* 46 cpu timer validity */
+		u64 cc :  1; /* 47 clock comparator validity */
+		u64    : 16; /* 47-63 */
+	};
 };
 
 struct pt_regs;
@@ -63,4 +74,5 @@ struct pt_regs;
 extern void s390_handle_mcck(void);
 extern void s390_do_machine_check(struct pt_regs *regs);
 
+#endif /* __ASSEMBLY__ */
 #endif /* _ASM_S390_NMI_H */
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index bdb2f51124ed..024f85f947ae 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -193,9 +193,15 @@ static inline int is_module_addr(void *addr)
 #define _PAGE_UNUSED	0x080		/* SW bit for pgste usage state */
 #define __HAVE_ARCH_PTE_SPECIAL
 
+#ifdef CONFIG_MEM_SOFT_DIRTY
+#define _PAGE_SOFT_DIRTY 0x002		/* SW pte soft dirty bit */
+#else
+#define _PAGE_SOFT_DIRTY 0x000
+#endif
+
 /* Set of bits not changed in pte_modify */
 #define _PAGE_CHG_MASK		(PAGE_MASK | _PAGE_SPECIAL | _PAGE_DIRTY | \
-				 _PAGE_YOUNG)
+				 _PAGE_YOUNG | _PAGE_SOFT_DIRTY)
 
 /*
  * handle_pte_fault uses pte_present and pte_none to find out the pte type
@@ -285,6 +291,12 @@ static inline int is_module_addr(void *addr)
 #define _SEGMENT_ENTRY_READ	0x0002	/* SW segment read bit */
 #define _SEGMENT_ENTRY_WRITE	0x0001	/* SW segment write bit */
 
+#ifdef CONFIG_MEM_SOFT_DIRTY
+#define _SEGMENT_ENTRY_SOFT_DIRTY 0x4000 /* SW segment soft dirty bit */
+#else
+#define _SEGMENT_ENTRY_SOFT_DIRTY 0x0000 /* SW segment soft dirty bit */
+#endif
+
 /*
  * Segment table entry encoding (R = read-only, I = invalid, y = young bit):
  *				dy..R...I...wr
@@ -589,6 +601,43 @@ static inline int pmd_protnone(pmd_t pmd)
 }
 #endif
 
+static inline int pte_soft_dirty(pte_t pte)
+{
+	return pte_val(pte) & _PAGE_SOFT_DIRTY;
+}
+#define pte_swp_soft_dirty pte_soft_dirty
+
+static inline pte_t pte_mksoft_dirty(pte_t pte)
+{
+	pte_val(pte) |= _PAGE_SOFT_DIRTY;
+	return pte;
+}
+#define pte_swp_mksoft_dirty pte_mksoft_dirty
+
+static inline pte_t pte_clear_soft_dirty(pte_t pte)
+{
+	pte_val(pte) &= ~_PAGE_SOFT_DIRTY;
+	return pte;
+}
+#define pte_swp_clear_soft_dirty pte_clear_soft_dirty
+
+static inline int pmd_soft_dirty(pmd_t pmd)
+{
+	return pmd_val(pmd) & _SEGMENT_ENTRY_SOFT_DIRTY;
+}
+
+static inline pmd_t pmd_mksoft_dirty(pmd_t pmd)
+{
+	pmd_val(pmd) |= _SEGMENT_ENTRY_SOFT_DIRTY;
+	return pmd;
+}
+
+static inline pmd_t pmd_clear_soft_dirty(pmd_t pmd)
+{
+	pmd_val(pmd) &= ~_SEGMENT_ENTRY_SOFT_DIRTY;
+	return pmd;
+}
+
 static inline pgste_t pgste_get_lock(pte_t *ptep)
 {
 	unsigned long new = 0;
@@ -889,7 +938,7 @@ static inline pte_t pte_mkclean(pte_t pte)
 
 static inline pte_t pte_mkdirty(pte_t pte)
 {
-	pte_val(pte) |= _PAGE_DIRTY;
+	pte_val(pte) |= _PAGE_DIRTY | _PAGE_SOFT_DIRTY;
 	if (pte_val(pte) & _PAGE_WRITE)
 		pte_val(pte) &= ~_PAGE_PROTECT;
 	return pte;
@@ -1218,8 +1267,10 @@ static inline int ptep_set_access_flags(struct vm_area_struct *vma,
 					pte_t entry, int dirty)
 {
 	pgste_t pgste;
+	pte_t oldpte;
 
-	if (pte_same(*ptep, entry))
+	oldpte = *ptep;
+	if (pte_same(oldpte, entry))
 		return 0;
 	if (mm_has_pgste(vma->vm_mm)) {
 		pgste = pgste_get_lock(ptep);
@@ -1229,7 +1280,8 @@ static inline int ptep_set_access_flags(struct vm_area_struct *vma,
 	ptep_flush_direct(vma->vm_mm, address, ptep);
 
 	if (mm_has_pgste(vma->vm_mm)) {
-		pgste_set_key(ptep, pgste, entry, vma->vm_mm);
+		if (pte_val(oldpte) & _PAGE_INVALID)
+			pgste_set_key(ptep, pgste, entry, vma->vm_mm);
 		pgste = pgste_set_pte(ptep, pgste, entry);
 		pgste_set_unlock(ptep, pgste);
 	} else
@@ -1340,7 +1392,8 @@ static inline pmd_t pmd_mkclean(pmd_t pmd)
 static inline pmd_t pmd_mkdirty(pmd_t pmd)
 {
 	if (pmd_large(pmd)) {
-		pmd_val(pmd) |= _SEGMENT_ENTRY_DIRTY;
+		pmd_val(pmd) |= _SEGMENT_ENTRY_DIRTY |
+				_SEGMENT_ENTRY_SOFT_DIRTY;
 		if (pmd_val(pmd) & _SEGMENT_ENTRY_WRITE)
 			pmd_val(pmd) &= ~_SEGMENT_ENTRY_PROTECT;
 	}
@@ -1371,7 +1424,8 @@ static inline pmd_t pmd_modify(pmd_t pmd, pgprot_t newprot)
 	if (pmd_large(pmd)) {
 		pmd_val(pmd) &= _SEGMENT_ENTRY_ORIGIN_LARGE |
 			_SEGMENT_ENTRY_DIRTY | _SEGMENT_ENTRY_YOUNG |
-			_SEGMENT_ENTRY_LARGE | _SEGMENT_ENTRY_SPLIT;
+			_SEGMENT_ENTRY_LARGE | _SEGMENT_ENTRY_SPLIT |
+			_SEGMENT_ENTRY_SOFT_DIRTY;
 		pmd_val(pmd) |= massage_pgprot_pmd(newprot);
 		if (!(pmd_val(pmd) & _SEGMENT_ENTRY_DIRTY))
 			pmd_val(pmd) |= _SEGMENT_ENTRY_PROTECT;
diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h
index 085fb0d3c54e..b16c3d0a1b9f 100644
--- a/arch/s390/include/asm/processor.h
+++ b/arch/s390/include/asm/processor.h
@@ -11,15 +11,19 @@
 #ifndef __ASM_S390_PROCESSOR_H
 #define __ASM_S390_PROCESSOR_H
 
+#include <linux/const.h>
+
 #define CIF_MCCK_PENDING	0	/* machine check handling is pending */
 #define CIF_ASCE		1	/* user asce needs fixup / uaccess */
 #define CIF_NOHZ_DELAY		2	/* delay HZ disable for a tick */
-#define CIF_FPU			3	/* restore vector registers */
+#define CIF_FPU			3	/* restore FPU registers */
+#define CIF_IGNORE_IRQ		4	/* ignore interrupt (for udelay) */
 
-#define _CIF_MCCK_PENDING	(1<<CIF_MCCK_PENDING)
-#define _CIF_ASCE		(1<<CIF_ASCE)
-#define _CIF_NOHZ_DELAY		(1<<CIF_NOHZ_DELAY)
-#define _CIF_FPU		(1<<CIF_FPU)
+#define _CIF_MCCK_PENDING	_BITUL(CIF_MCCK_PENDING)
+#define _CIF_ASCE		_BITUL(CIF_ASCE)
+#define _CIF_NOHZ_DELAY		_BITUL(CIF_NOHZ_DELAY)
+#define _CIF_FPU		_BITUL(CIF_FPU)
+#define _CIF_IGNORE_IRQ		_BITUL(CIF_IGNORE_IRQ)
 
 #ifndef __ASSEMBLY__
 
@@ -30,21 +34,22 @@
 #include <asm/ptrace.h>
 #include <asm/setup.h>
 #include <asm/runtime_instr.h>
-#include <asm/fpu-internal.h>
+#include <asm/fpu/types.h>
+#include <asm/fpu/internal.h>
 
 static inline void set_cpu_flag(int flag)
 {
-	S390_lowcore.cpu_flags |= (1U << flag);
+	S390_lowcore.cpu_flags |= (1UL << flag);
 }
 
 static inline void clear_cpu_flag(int flag)
 {
-	S390_lowcore.cpu_flags &= ~(1U << flag);
+	S390_lowcore.cpu_flags &= ~(1UL << flag);
 }
 
 static inline int test_cpu_flag(int flag)
 {
-	return !!(S390_lowcore.cpu_flags & (1U << flag));
+	return !!(S390_lowcore.cpu_flags & (1UL << flag));
 }
 
 #define arch_needs_cpu() test_cpu_flag(CIF_NOHZ_DELAY)
@@ -102,7 +107,6 @@ struct thread_struct {
 	struct list_head list;
 	/* cpu runtime instrumentation */
 	struct runtime_instr_cb *ri_cb;
-	int ri_signum;
 	unsigned char trap_tdb[256];	/* Transaction abort diagnose block */
 };
 
@@ -139,8 +143,10 @@ struct stack_frame {
 
 #define ARCH_MIN_TASKALIGN	8
 
+extern __vector128 init_task_fpu_regs[__NUM_VXRS];
 #define INIT_THREAD {							\
 	.ksp = sizeof(init_stack) + (unsigned long) &init_stack,	\
+	.fpu.regs = (void *)&init_task_fpu_regs,			\
 }
 
 /*
@@ -217,7 +223,7 @@ static inline void __load_psw(psw_t psw)
  * Set PSW mask to specified value, while leaving the
  * PSW addr pointing to the next instruction.
  */
-static inline void __load_psw_mask (unsigned long mask)
+static inline void __load_psw_mask(unsigned long mask)
 {
 	unsigned long addr;
 	psw_t psw;
@@ -243,6 +249,16 @@ static inline unsigned long __extract_psw(void)
 	return (((unsigned long) reg1) << 32) | ((unsigned long) reg2);
 }
 
+static inline void local_mcck_enable(void)
+{
+	__load_psw_mask(__extract_psw() | PSW_MASK_MCHECK);
+}
+
+static inline void local_mcck_disable(void)
+{
+	__load_psw_mask(__extract_psw() & ~PSW_MASK_MCHECK);
+}
+
 /*
  * Rewind PSW instruction address by specified number of bytes.
  */
@@ -266,65 +282,14 @@ void enabled_wait(void);
  */
 static inline void __noreturn disabled_wait(unsigned long code)
 {
-        unsigned long ctl_buf;
-        psw_t dw_psw;
-
-	dw_psw.mask = PSW_MASK_BASE | PSW_MASK_WAIT | PSW_MASK_BA | PSW_MASK_EA;
-        dw_psw.addr = code;
-        /* 
-         * Store status and then load disabled wait psw,
-         * the processor is dead afterwards
-         */
-	asm volatile(
-		"	stctg	0,0,0(%2)\n"
-		"	ni	4(%2),0xef\n"	/* switch off protection */
-		"	lctlg	0,0,0(%2)\n"
-		"	lghi	1,0x1000\n"
-		"	stpt	0x328(1)\n"	/* store timer */
-		"	stckc	0x330(1)\n"	/* store clock comparator */
-		"	stpx	0x318(1)\n"	/* store prefix register */
-		"	stam	0,15,0x340(1)\n"/* store access registers */
-		"	stfpc	0x31c(1)\n"	/* store fpu control */
-		"	std	0,0x200(1)\n"	/* store f0 */
-		"	std	1,0x208(1)\n"	/* store f1 */
-		"	std	2,0x210(1)\n"	/* store f2 */
-		"	std	3,0x218(1)\n"	/* store f3 */
-		"	std	4,0x220(1)\n"	/* store f4 */
-		"	std	5,0x228(1)\n"	/* store f5 */
-		"	std	6,0x230(1)\n"	/* store f6 */
-		"	std	7,0x238(1)\n"	/* store f7 */
-		"	std	8,0x240(1)\n"	/* store f8 */
-		"	std	9,0x248(1)\n"	/* store f9 */
-		"	std	10,0x250(1)\n"	/* store f10 */
-		"	std	11,0x258(1)\n"	/* store f11 */
-		"	std	12,0x260(1)\n"	/* store f12 */
-		"	std	13,0x268(1)\n"	/* store f13 */
-		"	std	14,0x270(1)\n"	/* store f14 */
-		"	std	15,0x278(1)\n"	/* store f15 */
-		"	stmg	0,15,0x280(1)\n"/* store general registers */
-		"	stctg	0,15,0x380(1)\n"/* store control registers */
-		"	oi	0x384(1),0x10\n"/* fake protection bit */
-		"	lpswe	0(%1)"
-		: "=m" (ctl_buf)
-		: "a" (&dw_psw), "a" (&ctl_buf), "m" (dw_psw) : "cc", "0", "1");
-	while (1);
-}
+	psw_t psw;
 
-/*
- * 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)));
+	psw.mask = PSW_MASK_BASE | PSW_MASK_WAIT | PSW_MASK_BA | PSW_MASK_EA;
+	psw.addr = code;
+	__load_psw(psw);
+	while (1);
 }
 
-#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/ptrace.h b/arch/s390/include/asm/ptrace.h
index 6feda2599282..37cbc50947f2 100644
--- a/arch/s390/include/asm/ptrace.h
+++ b/arch/s390/include/asm/ptrace.h
@@ -6,13 +6,14 @@
 #ifndef _S390_PTRACE_H
 #define _S390_PTRACE_H
 
+#include <linux/const.h>
 #include <uapi/asm/ptrace.h>
 
 #define PIF_SYSCALL		0	/* inside a system call */
 #define PIF_PER_TRAP		1	/* deliver sigtrap on return to user */
 
-#define _PIF_SYSCALL		(1<<PIF_SYSCALL)
-#define _PIF_PER_TRAP		(1<<PIF_PER_TRAP)
+#define _PIF_SYSCALL		_BITUL(PIF_SYSCALL)
+#define _PIF_PER_TRAP		_BITUL(PIF_PER_TRAP)
 
 #ifndef __ASSEMBLY__
 
@@ -128,17 +129,17 @@ struct per_struct_kernel {
 
 static inline void set_pt_regs_flag(struct pt_regs *regs, int flag)
 {
-	regs->flags |= (1U << flag);
+	regs->flags |= (1UL << flag);
 }
 
 static inline void clear_pt_regs_flag(struct pt_regs *regs, int flag)
 {
-	regs->flags &= ~(1U << flag);
+	regs->flags &= ~(1UL << flag);
 }
 
 static inline int test_pt_regs_flag(struct pt_regs *regs, int flag)
 {
-	return !!(regs->flags & (1U << flag));
+	return !!(regs->flags & (1UL << flag));
 }
 
 /*
diff --git a/arch/s390/include/asm/setup.h b/arch/s390/include/asm/setup.h
index b8ffc1bd0a9f..23537661da0e 100644
--- a/arch/s390/include/asm/setup.h
+++ b/arch/s390/include/asm/setup.h
@@ -5,11 +5,38 @@
 #ifndef _ASM_S390_SETUP_H
 #define _ASM_S390_SETUP_H
 
+#include <linux/const.h>
 #include <uapi/asm/setup.h>
 
 
 #define PARMAREA		0x10400
 
+/*
+ * Machine features detected in head.S
+ */
+
+#define MACHINE_FLAG_VM		_BITUL(0)
+#define MACHINE_FLAG_IEEE	_BITUL(1)
+#define MACHINE_FLAG_CSP	_BITUL(2)
+#define MACHINE_FLAG_MVPG	_BITUL(3)
+#define MACHINE_FLAG_DIAG44	_BITUL(4)
+#define MACHINE_FLAG_IDTE	_BITUL(5)
+#define MACHINE_FLAG_DIAG9C	_BITUL(6)
+#define MACHINE_FLAG_KVM	_BITUL(8)
+#define MACHINE_FLAG_ESOP	_BITUL(9)
+#define MACHINE_FLAG_EDAT1	_BITUL(10)
+#define MACHINE_FLAG_EDAT2	_BITUL(11)
+#define MACHINE_FLAG_LPAR	_BITUL(12)
+#define MACHINE_FLAG_LPP	_BITUL(13)
+#define MACHINE_FLAG_TOPOLOGY	_BITUL(14)
+#define MACHINE_FLAG_TE		_BITUL(15)
+#define MACHINE_FLAG_TLB_LC	_BITUL(17)
+#define MACHINE_FLAG_VX		_BITUL(18)
+#define MACHINE_FLAG_CAD	_BITUL(19)
+
+#define LPP_MAGIC		_BITUL(31)
+#define LPP_PFAULT_PID_MASK	_AC(0xffffffff, UL)
+
 #ifndef __ASSEMBLY__
 
 #include <asm/lowcore.h>
@@ -28,29 +55,6 @@ extern unsigned long max_physmem_end;
 
 extern void detect_memory_memblock(void);
 
-/*
- * Machine features detected in head.S
- */
-
-#define MACHINE_FLAG_VM		(1UL << 0)
-#define MACHINE_FLAG_IEEE	(1UL << 1)
-#define MACHINE_FLAG_CSP	(1UL << 2)
-#define MACHINE_FLAG_MVPG	(1UL << 3)
-#define MACHINE_FLAG_DIAG44	(1UL << 4)
-#define MACHINE_FLAG_IDTE	(1UL << 5)
-#define MACHINE_FLAG_DIAG9C	(1UL << 6)
-#define MACHINE_FLAG_KVM	(1UL << 8)
-#define MACHINE_FLAG_ESOP	(1UL << 9)
-#define MACHINE_FLAG_EDAT1	(1UL << 10)
-#define MACHINE_FLAG_EDAT2	(1UL << 11)
-#define MACHINE_FLAG_LPAR	(1UL << 12)
-#define MACHINE_FLAG_LPP	(1UL << 13)
-#define MACHINE_FLAG_TOPOLOGY	(1UL << 14)
-#define MACHINE_FLAG_TE		(1UL << 15)
-#define MACHINE_FLAG_TLB_LC	(1UL << 17)
-#define MACHINE_FLAG_VX		(1UL << 18)
-#define MACHINE_FLAG_CAD	(1UL << 19)
-
 #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)
diff --git a/arch/s390/include/asm/spinlock.h b/arch/s390/include/asm/spinlock.h
index 0e37cd041241..63ebf37d3143 100644
--- a/arch/s390/include/asm/spinlock.h
+++ b/arch/s390/include/asm/spinlock.h
@@ -87,7 +87,6 @@ static inline void arch_spin_unlock(arch_spinlock_t *lp)
 {
 	typecheck(unsigned int, lp->lock);
 	asm volatile(
-		__ASM_BARRIER
 		"st	%1,%0\n"
 		: "+Q" (lp->lock)
 		: "d" (0)
@@ -169,7 +168,6 @@ static inline int arch_write_trylock_once(arch_rwlock_t *rw)
 							\
 	typecheck(unsigned int *, ptr);			\
 	asm volatile(					\
-		"bcr	14,0\n"				\
 		op_string "	%0,%2,%1\n"		\
 		: "=d" (old_val), "+Q" (*ptr)		\
 		: "d" (op_val)				\
@@ -243,7 +241,6 @@ static inline void arch_write_unlock(arch_rwlock_t *rw)
 
 	rw->owner = 0;
 	asm volatile(
-		__ASM_BARRIER
 		"st	%1,%0\n"
 		: "+Q" (rw->lock)
 		: "d" (0)
diff --git a/arch/s390/include/asm/switch_to.h b/arch/s390/include/asm/switch_to.h
index dcadfde32265..12d45f0cfdd9 100644
--- a/arch/s390/include/asm/switch_to.h
+++ b/arch/s390/include/asm/switch_to.h
@@ -8,7 +8,7 @@
 #define __ASM_SWITCH_TO_H
 
 #include <linux/thread_info.h>
-#include <asm/fpu-internal.h>
+#include <asm/fpu/api.h>
 #include <asm/ptrace.h>
 
 extern struct task_struct *__switch_to(void *, void *);
diff --git a/arch/s390/include/asm/thread_info.h b/arch/s390/include/asm/thread_info.h
index 4c27ec764c36..692b9247c019 100644
--- a/arch/s390/include/asm/thread_info.h
+++ b/arch/s390/include/asm/thread_info.h
@@ -7,6 +7,8 @@
 #ifndef _ASM_THREAD_INFO_H
 #define _ASM_THREAD_INFO_H
 
+#include <linux/const.h>
+
 /*
  * Size of kernel stack for each process
  */
@@ -83,16 +85,16 @@ void arch_release_task_struct(struct task_struct *tsk);
 #define TIF_BLOCK_STEP		20	/* This task is block stepped */
 #define TIF_UPROBE_SINGLESTEP	21	/* This task is uprobe single stepped */
 
-#define _TIF_NOTIFY_RESUME	(1<<TIF_NOTIFY_RESUME)
-#define _TIF_SIGPENDING		(1<<TIF_SIGPENDING)
-#define _TIF_NEED_RESCHED	(1<<TIF_NEED_RESCHED)
-#define _TIF_SYSCALL_TRACE	(1<<TIF_SYSCALL_TRACE)
-#define _TIF_SYSCALL_AUDIT	(1<<TIF_SYSCALL_AUDIT)
-#define _TIF_SECCOMP		(1<<TIF_SECCOMP)
-#define _TIF_SYSCALL_TRACEPOINT	(1<<TIF_SYSCALL_TRACEPOINT)
-#define _TIF_UPROBE		(1<<TIF_UPROBE)
-#define _TIF_31BIT		(1<<TIF_31BIT)
-#define _TIF_SINGLE_STEP	(1<<TIF_SINGLE_STEP)
+#define _TIF_NOTIFY_RESUME	_BITUL(TIF_NOTIFY_RESUME)
+#define _TIF_SIGPENDING		_BITUL(TIF_SIGPENDING)
+#define _TIF_NEED_RESCHED	_BITUL(TIF_NEED_RESCHED)
+#define _TIF_SYSCALL_TRACE	_BITUL(TIF_SYSCALL_TRACE)
+#define _TIF_SYSCALL_AUDIT	_BITUL(TIF_SYSCALL_AUDIT)
+#define _TIF_SECCOMP		_BITUL(TIF_SECCOMP)
+#define _TIF_SYSCALL_TRACEPOINT	_BITUL(TIF_SYSCALL_TRACEPOINT)
+#define _TIF_UPROBE		_BITUL(TIF_UPROBE)
+#define _TIF_31BIT		_BITUL(TIF_31BIT)
+#define _TIF_SINGLE_STEP	_BITUL(TIF_SINGLE_STEP)
 
 #define is_32bit_task()		(test_thread_flag(TIF_31BIT))
 
diff --git a/arch/s390/include/asm/trace/diag.h b/arch/s390/include/asm/trace/diag.h
new file mode 100644
index 000000000000..776f307960cc
--- /dev/null
+++ b/arch/s390/include/asm/trace/diag.h
@@ -0,0 +1,43 @@
+/*
+ * Tracepoint header for s390 diagnose calls
+ *
+ * Copyright IBM Corp. 2015
+ * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
+ */
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM s390
+
+#if !defined(_TRACE_S390_DIAG_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_S390_DIAG_H
+
+#include <linux/tracepoint.h>
+
+#undef TRACE_INCLUDE_PATH
+#undef TRACE_INCLUDE_FILE
+
+#define TRACE_INCLUDE_PATH asm/trace
+#define TRACE_INCLUDE_FILE diag
+
+TRACE_EVENT(diagnose,
+	TP_PROTO(unsigned short nr),
+	TP_ARGS(nr),
+	TP_STRUCT__entry(
+		__field(unsigned short, nr)
+	),
+	TP_fast_assign(
+		__entry->nr = nr;
+	),
+	TP_printk("nr=0x%x", __entry->nr)
+);
+
+#ifdef CONFIG_TRACEPOINTS
+void trace_diagnose_norecursion(int diag_nr);
+#else
+static inline void trace_diagnose_norecursion(int diag_nr) { }
+#endif
+
+#endif /* _TRACE_S390_DIAG_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>