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

Pull s390 updates from Heiko Carstens:
 "Since Martin is on vacation you get the s390 pull request for the
  v4.15 merge window this time from me.

  Besides a lot of cleanups and bug fixes these are the most important
  changes:

   - a new regset for runtime instrumentation registers

   - hardware accelerated AES-GCM support for the aes_s390 module

   - support for the new CEX6S crypto cards

   - support for FORTIFY_SOURCE

   - addition of missing z13 and new z14 instructions to the in-kernel
     disassembler

   - generate opcode tables for the in-kernel disassembler out of a
     simple text file instead of having to manually maintain those
     tables

   - fast memset16, memset32 and memset64 implementations

   - removal of named saved segment support

   - hardware counter support for z14

   - queued spinlocks and queued rwlocks implementations for s390

   - use the stack_depth tracking feature for s390 BPF JIT

   - a new s390_sthyi system call which emulates the sthyi (store
     hypervisor information) instruction

   - removal of the old KVM virtio transport

   - an s390 specific CPU alternatives implementation which is used in
     the new spinlock code"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (88 commits)
  MAINTAINERS: add virtio-ccw.h to virtio/s390 section
  s390/noexec: execute kexec datamover without DAT
  s390: fix transactional execution control register handling
  s390/bpf: take advantage of stack_depth tracking
  s390: simplify transactional execution elf hwcap handling
  s390/zcrypt: Rework struct ap_qact_ap_info.
  s390/virtio: remove unused header file kvm_virtio.h
  s390: avoid undefined behaviour
  s390/disassembler: generate opcode tables from text file
  s390/disassembler: remove insn_to_mnemonic()
  s390/dasd: avoid calling do_gettimeofday()
  s390: vfio-ccw: Do not attempt to free no-op, test and tic cda.
  s390: remove named saved segment support
  s390/archrandom: Reconsider s390 arch random implementation
  s390/pci: do not require AIS facility
  s390/qdio: sanitize put_indicator
  s390/qdio: use atomic_cmpxchg
  s390/nmi: avoid using long-displacement facility
  s390: pass endianness info to sparse
  s390/decompressor: remove informational messages
  ...

33 files changed, 537 insertions, 660 deletions

diff --git a/arch/s390/include/asm/Kbuild b/arch/s390/include/asm/Kbuild
index 6e2c9f7e47fa..41c211a4d8b1 100644
--- a/arch/s390/include/asm/Kbuild
+++ b/arch/s390/include/asm/Kbuild
@@ -15,6 +15,7 @@ generic-y += local64.h
 generic-y += mcs_spinlock.h
 generic-y += mm-arch-hooks.h
 generic-y += preempt.h
+generic-y += rwsem.h
 generic-y += trace_clock.h
 generic-y += unaligned.h
 generic-y += word-at-a-time.h
diff --git a/arch/s390/include/asm/alternative.h b/arch/s390/include/asm/alternative.h
new file mode 100644
index 000000000000..6c268f6a51d3
--- /dev/null
+++ b/arch/s390/include/asm/alternative.h
@@ -0,0 +1,163 @@
+#ifndef _ASM_S390_ALTERNATIVE_H
+#define _ASM_S390_ALTERNATIVE_H
+
+#ifndef __ASSEMBLY__
+
+#include <linux/types.h>
+#include <linux/stddef.h>
+#include <linux/stringify.h>
+
+struct alt_instr {
+	s32 instr_offset;	/* original instruction */
+	s32 repl_offset;	/* offset to replacement instruction */
+	u16 facility;		/* facility bit set for replacement */
+	u8  instrlen;		/* length of original instruction */
+	u8  replacementlen;	/* length of new instruction */
+} __packed;
+
+#ifdef CONFIG_ALTERNATIVES
+extern void apply_alternative_instructions(void);
+extern void apply_alternatives(struct alt_instr *start, struct alt_instr *end);
+#else
+static inline void apply_alternative_instructions(void) {};
+static inline void apply_alternatives(struct alt_instr *start,
+				      struct alt_instr *end) {};
+#endif
+/*
+ * |661:       |662:	  |6620      |663:
+ * +-----------+---------------------+
+ * | oldinstr  | oldinstr_padding    |
+ * |	       +----------+----------+
+ * |	       |	  |	     |
+ * |	       | >6 bytes |6/4/2 nops|
+ * |	       |6 bytes jg----------->
+ * +-----------+---------------------+
+ *		 ^^ static padding ^^
+ *
+ * .altinstr_replacement section
+ * +---------------------+-----------+
+ * |6641:			     |6651:
+ * | alternative instr 1	     |
+ * +-----------+---------+- - - - - -+
+ * |6642:		 |6652:      |
+ * | alternative instr 2 | padding
+ * +---------------------+- - - - - -+
+ *			  ^ runtime ^
+ *
+ * .altinstructions section
+ * +---------------------------------+
+ * | alt_instr entries for each      |
+ * | alternative instr		     |
+ * +---------------------------------+
+ */
+
+#define b_altinstr(num)	"664"#num
+#define e_altinstr(num)	"665"#num
+
+#define e_oldinstr_pad_end	"663"
+#define oldinstr_len		"662b-661b"
+#define oldinstr_total_len	e_oldinstr_pad_end"b-661b"
+#define altinstr_len(num)	e_altinstr(num)"b-"b_altinstr(num)"b"
+#define oldinstr_pad_len(num) \
+	"-(((" altinstr_len(num) ")-(" oldinstr_len ")) > 0) * " \
+	"((" altinstr_len(num) ")-(" oldinstr_len "))"
+
+#define INSTR_LEN_SANITY_CHECK(len)					\
+	".if " len " > 254\n"						\
+	"\t.error \"cpu alternatives does not support instructions "	\
+		"blocks > 254 bytes\"\n"				\
+	".endif\n"							\
+	".if (" len ") %% 2\n"						\
+	"\t.error \"cpu alternatives instructions length is odd\"\n"	\
+	".endif\n"
+
+#define OLDINSTR_PADDING(oldinstr, num)					\
+	".if " oldinstr_pad_len(num) " > 6\n"				\
+	"\tjg " e_oldinstr_pad_end "f\n"				\
+	"6620:\n"							\
+	"\t.fill (" oldinstr_pad_len(num) " - (6620b-662b)) / 2, 2, 0x0700\n" \
+	".else\n"							\
+	"\t.fill " oldinstr_pad_len(num) " / 6, 6, 0xc0040000\n"	\
+	"\t.fill " oldinstr_pad_len(num) " %% 6 / 4, 4, 0x47000000\n"	\
+	"\t.fill " oldinstr_pad_len(num) " %% 6 %% 4 / 2, 2, 0x0700\n"	\
+	".endif\n"
+
+#define OLDINSTR(oldinstr, num)						\
+	"661:\n\t" oldinstr "\n662:\n"					\
+	OLDINSTR_PADDING(oldinstr, num)					\
+	e_oldinstr_pad_end ":\n"					\
+	INSTR_LEN_SANITY_CHECK(oldinstr_len)
+
+#define OLDINSTR_2(oldinstr, num1, num2)				\
+	"661:\n\t" oldinstr "\n662:\n"					\
+	".if " altinstr_len(num1) " < " altinstr_len(num2) "\n"		\
+	OLDINSTR_PADDING(oldinstr, num2)				\
+	".else\n"							\
+	OLDINSTR_PADDING(oldinstr, num1)				\
+	".endif\n"							\
+	e_oldinstr_pad_end ":\n"					\
+	INSTR_LEN_SANITY_CHECK(oldinstr_len)
+
+#define ALTINSTR_ENTRY(facility, num)					\
+	"\t.long 661b - .\n"			/* old instruction */	\
+	"\t.long " b_altinstr(num)"b - .\n"	/* alt instruction */	\
+	"\t.word " __stringify(facility) "\n"	/* facility bit    */	\
+	"\t.byte " oldinstr_total_len "\n"	/* source len	   */	\
+	"\t.byte " altinstr_len(num) "\n"	/* alt instruction len */
+
+#define ALTINSTR_REPLACEMENT(altinstr, num)	/* replacement */	\
+	b_altinstr(num)":\n\t" altinstr "\n" e_altinstr(num) ":\n"	\
+	INSTR_LEN_SANITY_CHECK(altinstr_len(num))
+
+#ifdef CONFIG_ALTERNATIVES
+/* alternative assembly primitive: */
+#define ALTERNATIVE(oldinstr, altinstr, facility) \
+	".pushsection .altinstr_replacement, \"ax\"\n"			\
+	ALTINSTR_REPLACEMENT(altinstr, 1)				\
+	".popsection\n"							\
+	OLDINSTR(oldinstr, 1)						\
+	".pushsection .altinstructions,\"a\"\n"				\
+	ALTINSTR_ENTRY(facility, 1)					\
+	".popsection\n"
+
+#define ALTERNATIVE_2(oldinstr, altinstr1, facility1, altinstr2, facility2)\
+	".pushsection .altinstr_replacement, \"ax\"\n"			\
+	ALTINSTR_REPLACEMENT(altinstr1, 1)				\
+	ALTINSTR_REPLACEMENT(altinstr2, 2)				\
+	".popsection\n"							\
+	OLDINSTR_2(oldinstr, 1, 2)					\
+	".pushsection .altinstructions,\"a\"\n"				\
+	ALTINSTR_ENTRY(facility1, 1)					\
+	ALTINSTR_ENTRY(facility2, 2)					\
+	".popsection\n"
+#else
+/* Alternative instructions are disabled, let's put just oldinstr in */
+#define ALTERNATIVE(oldinstr, altinstr, facility) \
+	oldinstr "\n"
+
+#define ALTERNATIVE_2(oldinstr, altinstr1, facility1, altinstr2, facility2) \
+	oldinstr "\n"
+#endif
+
+/*
+ * Alternative instructions for different CPU types or capabilities.
+ *
+ * This allows to use optimized instructions even on generic binary
+ * kernels.
+ *
+ * oldinstr is padded with jump and nops at compile time if altinstr is
+ * longer. altinstr is padded with jump and nops at run-time during patching.
+ *
+ * For non barrier like inlines please define new variants
+ * without volatile and memory clobber.
+ */
+#define alternative(oldinstr, altinstr, facility)			\
+	asm volatile(ALTERNATIVE(oldinstr, altinstr, facility) : : : "memory")
+
+#define alternative_2(oldinstr, altinstr1, facility1, altinstr2, facility2) \
+	asm volatile(ALTERNATIVE_2(oldinstr, altinstr1, facility1,	    \
+				   altinstr2, facility2) ::: "memory")
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _ASM_S390_ALTERNATIVE_H */
diff --git a/arch/s390/include/asm/archrandom.h b/arch/s390/include/asm/archrandom.h
index e9f7d7a57f99..09aed1095336 100644
--- a/arch/s390/include/asm/archrandom.h
+++ b/arch/s390/include/asm/archrandom.h
@@ -28,42 +28,42 @@ static void s390_arch_random_generate(u8 *buf, unsigned int nbytes)
 
 static inline bool arch_has_random(void)
 {
-	if (static_branch_likely(&s390_arch_random_available))
-		return true;
 	return false;
 }
 
 static inline bool arch_has_random_seed(void)
 {
-	return arch_has_random();
+	if (static_branch_likely(&s390_arch_random_available))
+		return true;
+	return false;
 }
 
 static inline bool arch_get_random_long(unsigned long *v)
 {
-	if (static_branch_likely(&s390_arch_random_available)) {
-		s390_arch_random_generate((u8 *)v, sizeof(*v));
-		return true;
-	}
 	return false;
 }
 
 static inline bool arch_get_random_int(unsigned int *v)
 {
-	if (static_branch_likely(&s390_arch_random_available)) {
-		s390_arch_random_generate((u8 *)v, sizeof(*v));
-		return true;
-	}
 	return false;
 }
 
 static inline bool arch_get_random_seed_long(unsigned long *v)
 {
-	return arch_get_random_long(v);
+	if (static_branch_likely(&s390_arch_random_available)) {
+		s390_arch_random_generate((u8 *)v, sizeof(*v));
+		return true;
+	}
+	return false;
 }
 
 static inline bool arch_get_random_seed_int(unsigned int *v)
 {
-	return arch_get_random_int(v);
+	if (static_branch_likely(&s390_arch_random_available)) {
+		s390_arch_random_generate((u8 *)v, sizeof(*v));
+		return true;
+	}
+	return false;
 }
 
 #endif /* CONFIG_ARCH_RANDOM */
diff --git a/arch/s390/include/asm/atomic_ops.h b/arch/s390/include/asm/atomic_ops.h
index f479e4c0b87e..d3f09526ee19 100644
--- a/arch/s390/include/asm/atomic_ops.h
+++ b/arch/s390/include/asm/atomic_ops.h
@@ -40,19 +40,24 @@ __ATOMIC_OPS(__atomic64_xor, long, "laxg")
 #undef __ATOMIC_OPS
 #undef __ATOMIC_OP
 
-static inline void __atomic_add_const(int val, int *ptr)
-{
-	asm volatile(
-		"	asi	%[ptr],%[val]\n"
-		: [ptr] "+Q" (*ptr) : [val] "i" (val) : "cc");
+#define __ATOMIC_CONST_OP(op_name, op_type, op_string, op_barrier)	\
+static inline void op_name(op_type val, op_type *ptr)			\
+{									\
+	asm volatile(							\
+		op_string "	%[ptr],%[val]\n"			\
+		op_barrier						\
+		: [ptr] "+Q" (*ptr) : [val] "i" (val) : "cc", "memory");\
 }
 
-static inline void __atomic64_add_const(long val, long *ptr)
-{
-	asm volatile(
-		"	agsi	%[ptr],%[val]\n"
-		: [ptr] "+Q" (*ptr) : [val] "i" (val) : "cc");
-}
+#define __ATOMIC_CONST_OPS(op_name, op_type, op_string)			\
+	__ATOMIC_CONST_OP(op_name, op_type, op_string, "\n")		\
+	__ATOMIC_CONST_OP(op_name##_barrier, op_type, op_string, "bcr 14,0\n")
+
+__ATOMIC_CONST_OPS(__atomic_add_const, int, "asi")
+__ATOMIC_CONST_OPS(__atomic64_add_const, long, "agsi")
+
+#undef __ATOMIC_CONST_OPS
+#undef __ATOMIC_CONST_OP
 
 #else /* CONFIG_HAVE_MARCH_Z196_FEATURES */
 
@@ -108,6 +113,11 @@ __ATOMIC64_OPS(__atomic64_xor, "xgr")
 
 #undef __ATOMIC64_OPS
 
+#define __atomic_add_const(val, ptr)		__atomic_add(val, ptr)
+#define __atomic_add_const_barrier(val, ptr)	__atomic_add(val, ptr)
+#define __atomic64_add_const(val, ptr)		__atomic64_add(val, ptr)
+#define __atomic64_add_const_barrier(val, ptr)	__atomic64_add(val, ptr)
+
 #endif /* CONFIG_HAVE_MARCH_Z196_FEATURES */
 
 static inline int __atomic_cmpxchg(int *ptr, int old, int new)
diff --git a/arch/s390/include/asm/ccwgroup.h b/arch/s390/include/asm/ccwgroup.h
index b00777ce93b4..99aa817dad32 100644
--- a/arch/s390/include/asm/ccwgroup.h
+++ b/arch/s390/include/asm/ccwgroup.h
@@ -42,6 +42,7 @@ struct ccwgroup_device {
  * @thaw: undo work done in @freeze
  * @restore: callback for restoring after hibernation
  * @driver: embedded driver structure
+ * @ccw_driver: supported ccw_driver (optional)
  */
 struct ccwgroup_driver {
 	int (*setup) (struct ccwgroup_device *);
@@ -56,6 +57,7 @@ struct ccwgroup_driver {
 	int (*restore)(struct ccwgroup_device *);
 
 	struct device_driver driver;
+	struct ccw_driver *ccw_driver;
 };
 
 extern int  ccwgroup_driver_register   (struct ccwgroup_driver *cdriver);
diff --git a/arch/s390/include/asm/cpacf.h b/arch/s390/include/asm/cpacf.h
index 056670ebba67..3cc52e37b4b2 100644
--- a/arch/s390/include/asm/cpacf.h
+++ b/arch/s390/include/asm/cpacf.h
@@ -2,7 +2,7 @@
 /*
  * CP Assist for Cryptographic Functions (CPACF)
  *
- * Copyright IBM Corp. 2003, 2016
+ * Copyright IBM Corp. 2003, 2017
  * Author(s): Thomas Spatzier
  *	      Jan Glauber
  *	      Harald Freudenberger (freude@de.ibm.com)
@@ -134,6 +134,22 @@
 #define CPACF_PRNO_TRNG_Q_R2C_RATIO	0x70
 #define CPACF_PRNO_TRNG			0x72
 
+/*
+ * Function codes for the KMA (CIPHER MESSAGE WITH AUTHENTICATION)
+ * instruction
+ */
+#define CPACF_KMA_QUERY		0x00
+#define CPACF_KMA_GCM_AES_128	0x12
+#define CPACF_KMA_GCM_AES_192	0x13
+#define CPACF_KMA_GCM_AES_256	0x14
+
+/*
+ * Flags for the KMA (CIPHER MESSAGE WITH AUTHENTICATION) instruction
+ */
+#define CPACF_KMA_LPC	0x100	/* Last-Plaintext/Ciphertext */
+#define CPACF_KMA_LAAD	0x200	/* Last-AAD */
+#define CPACF_KMA_HS	0x400	/* Hash-subkey Supplied */
+
 typedef struct { unsigned char bytes[16]; } cpacf_mask_t;
 
 /**
@@ -179,6 +195,8 @@ static inline int __cpacf_check_opcode(unsigned int opcode)
 		return test_facility(77);	/* check for MSA4 */
 	case CPACF_PRNO:
 		return test_facility(57);	/* check for MSA5 */
+	case CPACF_KMA:
+		return test_facility(146);	/* check for MSA8 */
 	default:
 		BUG();
 	}
@@ -470,4 +488,36 @@ static inline void cpacf_pckmo(long func, void *param)
 		: "cc", "memory");
 }
 
+/**
+ * cpacf_kma() - executes the KMA (CIPHER MESSAGE WITH AUTHENTICATION)
+ *		 instruction
+ * @func: the function code passed to KMA; see CPACF_KMA_xxx defines
+ * @param: address of parameter block; see POP for details on each func
+ * @dest: address of destination memory area
+ * @src: address of source memory area
+ * @src_len: length of src operand in bytes
+ * @aad: address of additional authenticated data memory area
+ * @aad_len: length of aad operand in bytes
+ */
+static inline void cpacf_kma(unsigned long func, void *param, u8 *dest,
+			     const u8 *src, unsigned long src_len,
+			     const u8 *aad, unsigned long aad_len)
+{
+	register unsigned long r0 asm("0") = (unsigned long) func;
+	register unsigned long r1 asm("1") = (unsigned long) param;
+	register unsigned long r2 asm("2") = (unsigned long) src;
+	register unsigned long r3 asm("3") = (unsigned long) src_len;
+	register unsigned long r4 asm("4") = (unsigned long) aad;
+	register unsigned long r5 asm("5") = (unsigned long) aad_len;
+	register unsigned long r6 asm("6") = (unsigned long) dest;
+
+	asm volatile(
+		"0:	.insn	rrf,%[opc] << 16,%[dst],%[src],%[aad],0\n"
+		"	brc	1,0b\n"	/* handle partial completion */
+		: [dst] "+a" (r6), [src] "+a" (r2), [slen] "+d" (r3),
+		  [aad] "+a" (r4), [alen] "+d" (r5)
+		: [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMA)
+		: "cc", "memory");
+}
+
 #endif	/* _ASM_S390_CPACF_H */
diff --git a/arch/s390/include/asm/ctl_reg.h b/arch/s390/include/asm/ctl_reg.h
index 93e0d72f6c94..99c93d0346f9 100644
--- a/arch/s390/include/asm/ctl_reg.h
+++ b/arch/s390/include/asm/ctl_reg.h
@@ -8,6 +8,18 @@
 #ifndef __ASM_CTL_REG_H
 #define __ASM_CTL_REG_H
 
+#include <linux/const.h>
+
+#define CR2_GUARDED_STORAGE		_BITUL(63 - 59)
+
+#define CR14_CHANNEL_REPORT_SUBMASK	_BITUL(63 - 35)
+#define CR14_RECOVERY_SUBMASK		_BITUL(63 - 36)
+#define CR14_DEGRADATION_SUBMASK	_BITUL(63 - 37)
+#define CR14_EXTERNAL_DAMAGE_SUBMASK	_BITUL(63 - 38)
+#define CR14_WARNING_SUBMASK		_BITUL(63 - 39)
+
+#ifndef __ASSEMBLY__
+
 #include <linux/bug.h>
 
 #define __ctl_load(array, low, high) do {				\
@@ -55,7 +67,11 @@ void smp_ctl_clear_bit(int cr, int bit);
 union ctlreg0 {
 	unsigned long val;
 	struct {
-		unsigned long	   : 32;
+		unsigned long	   : 8;
+		unsigned long tcx  : 1;	/* Transactional-Execution control */
+		unsigned long pifo : 1;	/* Transactional-Execution Program-
+					   Interruption-Filtering Override */
+		unsigned long	   : 22;
 		unsigned long	   : 3;
 		unsigned long lap  : 1; /* Low-address-protection control */
 		unsigned long	   : 4;
@@ -71,6 +87,19 @@ union ctlreg0 {
 	};
 };
 
+union ctlreg2 {
+	unsigned long val;
+	struct {
+		unsigned long	    : 33;
+		unsigned long ducto : 25;
+		unsigned long	    : 1;
+		unsigned long gse   : 1;
+		unsigned long	    : 1;
+		unsigned long tds   : 1;
+		unsigned long tdc   : 2;
+	};
+};
+
 #ifdef CONFIG_SMP
 # define ctl_set_bit(cr, bit) smp_ctl_set_bit(cr, bit)
 # define ctl_clear_bit(cr, bit) smp_ctl_clear_bit(cr, bit)
@@ -79,4 +108,5 @@ union ctlreg0 {
 # define ctl_clear_bit(cr, bit) __ctl_clear_bit(cr, bit)
 #endif
 
+#endif /* __ASSEMBLY__ */
 #endif /* __ASM_CTL_REG_H */
diff --git a/arch/s390/include/asm/debug.h b/arch/s390/include/asm/debug.h
index a4ed25dd3278..c305d39f5016 100644
--- a/arch/s390/include/asm/debug.h
+++ b/arch/s390/include/asm/debug.h
@@ -14,71 +14,71 @@
 #include <linux/refcount.h>
 #include <uapi/asm/debug.h>
 
-#define DEBUG_MAX_LEVEL            6  /* debug levels range from 0 to 6 */
-#define DEBUG_OFF_LEVEL            -1 /* level where debug is switched off */
-#define DEBUG_FLUSH_ALL            -1 /* parameter to flush all areas */
-#define DEBUG_MAX_VIEWS            10 /* max number of views in proc fs */
-#define DEBUG_MAX_NAME_LEN         64 /* max length for a debugfs file name */
-#define DEBUG_DEFAULT_LEVEL        3  /* initial debug level */
+#define DEBUG_MAX_LEVEL		   6  /* debug levels range from 0 to 6 */
+#define DEBUG_OFF_LEVEL		   -1 /* level where debug is switched off */
+#define DEBUG_FLUSH_ALL		   -1 /* parameter to flush all areas */
+#define DEBUG_MAX_VIEWS		   10 /* max number of views in proc fs */
+#define DEBUG_MAX_NAME_LEN	   64 /* max length for a debugfs file name */
+#define DEBUG_DEFAULT_LEVEL	   3  /* initial debug level */
 
 #define DEBUG_DIR_ROOT "s390dbf" /* name of debug root directory in proc fs */
 
-#define DEBUG_DATA(entry) (char*)(entry + 1) /* data is stored behind */
-                                             /* the entry information */
+#define DEBUG_DATA(entry) (char *)(entry + 1) /* data is stored behind */
+					      /* the entry information */
 
 typedef struct __debug_entry debug_entry_t;
 
 struct debug_view;
 
-typedef struct debug_info {	
-	struct debug_info* next;
-	struct debug_info* prev;
+typedef struct debug_info {
+	struct debug_info *next;
+	struct debug_info *prev;
 	refcount_t ref_count;
-	spinlock_t lock;			
+	spinlock_t lock;
 	int level;
 	int nr_areas;
 	int pages_per_area;
 	int buf_size;
-	int entry_size;	
-	debug_entry_t*** areas;
+	int entry_size;
+	debug_entry_t ***areas;
 	int active_area;
 	int *active_pages;
 	int *active_entries;
-	struct dentry* debugfs_root_entry;
-	struct dentry* debugfs_entries[DEBUG_MAX_VIEWS];
-	struct debug_view* views[DEBUG_MAX_VIEWS];	
+	struct dentry *debugfs_root_entry;
+	struct dentry *debugfs_entries[DEBUG_MAX_VIEWS];
+	struct debug_view *views[DEBUG_MAX_VIEWS];
 	char name[DEBUG_MAX_NAME_LEN];
 	umode_t mode;
 } debug_info_t;
 
-typedef int (debug_header_proc_t) (debug_info_t* id,
-				   struct debug_view* view,
+typedef int (debug_header_proc_t) (debug_info_t *id,
+				   struct debug_view *view,
 				   int area,
-				   debug_entry_t* entry,
-				   char* out_buf);
-
-typedef int (debug_format_proc_t) (debug_info_t* id,
-				   struct debug_view* view, char* out_buf,
-				   const char* in_buf);
-typedef int (debug_prolog_proc_t) (debug_info_t* id,
-				   struct debug_view* view,
-				   char* out_buf);
-typedef int (debug_input_proc_t) (debug_info_t* id,
-				  struct debug_view* view,
-				  struct file* file,
+				   debug_entry_t *entry,
+				   char *out_buf);
+
+typedef int (debug_format_proc_t) (debug_info_t *id,
+				   struct debug_view *view, char *out_buf,
+				   const char *in_buf);
+typedef int (debug_prolog_proc_t) (debug_info_t *id,
+				   struct debug_view *view,
+				   char *out_buf);
+typedef int (debug_input_proc_t) (debug_info_t *id,
+				  struct debug_view *view,
+				  struct file *file,
 				  const char __user *user_buf,
-				  size_t in_buf_size, loff_t* offset);
+				  size_t in_buf_size, loff_t *offset);
+
+int debug_dflt_header_fn(debug_info_t *id, struct debug_view *view,
+			 int area, debug_entry_t *entry, char *out_buf);
 
-int debug_dflt_header_fn(debug_info_t* id, struct debug_view* view,
-		         int area, debug_entry_t* entry, char* out_buf);						
-				
 struct debug_view {
 	char name[DEBUG_MAX_NAME_LEN];
-	debug_prolog_proc_t* prolog_proc;
-	debug_header_proc_t* header_proc;
-	debug_format_proc_t* format_proc;
-	debug_input_proc_t*  input_proc;
-	void*                private_data;
+	debug_prolog_proc_t *prolog_proc;
+	debug_header_proc_t *header_proc;
+	debug_format_proc_t *format_proc;
+	debug_input_proc_t  *input_proc;
+	void		    *private_data;
 };
 
 extern struct debug_view debug_hex_ascii_view;
@@ -87,65 +87,67 @@ extern struct debug_view debug_sprintf_view;
 
 /* do NOT use the _common functions */
 
-debug_entry_t* debug_event_common(debug_info_t* id, int level, 
-                                  const void* data, int length);
+debug_entry_t *debug_event_common(debug_info_t *id, int level,
+				  const void *data, int length);
 
-debug_entry_t* debug_exception_common(debug_info_t* id, int level, 
-                                      const void* data, int length);
+debug_entry_t *debug_exception_common(debug_info_t *id, int level,
+				      const void *data, int length);
 
 /* Debug Feature API: */
 
 debug_info_t *debug_register(const char *name, int pages, int nr_areas,
-                             int buf_size);
+			     int buf_size);
 
 debug_info_t *debug_register_mode(const char *name, int pages, int nr_areas,
 				  int buf_size, umode_t mode, uid_t uid,
 				  gid_t gid);
 
-void debug_unregister(debug_info_t* id);
+void debug_unregister(debug_info_t *id);
 
-void debug_set_level(debug_info_t* id, int new_level);
+void debug_set_level(debug_info_t *id, int new_level);
 
 void debug_set_critical(void);
 void debug_stop_all(void);
 
-static inline bool debug_level_enabled(debug_info_t* id, int level)
+static inline bool debug_level_enabled(debug_info_t *id, int level)
 {
 	return level <= id->level;
 }
 
-static inline debug_entry_t*
-debug_event(debug_info_t* id, int level, void* data, int length)
+static inline debug_entry_t *debug_event(debug_info_t *id, int level,
+					 void *data, int length)
 {
 	if ((!id) || (level > id->level) || (id->pages_per_area == 0))
 		return NULL;
-        return debug_event_common(id,level,data,length);
+	return debug_event_common(id, level, data, length);
 }
 
-static inline debug_entry_t*
-debug_int_event(debug_info_t* id, int level, unsigned int tag)
+static inline debug_entry_t *debug_int_event(debug_info_t *id, int level,
+					     unsigned int tag)
 {
-        unsigned int t=tag;
+	unsigned int t = tag;
+
 	if ((!id) || (level > id->level) || (id->pages_per_area == 0))
 		return NULL;
-        return debug_event_common(id,level,&t,sizeof(unsigned int));
+	return debug_event_common(id, level, &t, sizeof(unsigned int));
 }
 
-static inline debug_entry_t *
-debug_long_event (debug_info_t* id, int level, unsigned long tag)
+static inline debug_entry_t *debug_long_event(debug_info_t *id, int level,
+					      unsigned long tag)
 {
-        unsigned long t=tag;
+	unsigned long t = tag;
+
 	if ((!id) || (level > id->level) || (id->pages_per_area == 0))
 		return NULL;
-        return debug_event_common(id,level,&t,sizeof(unsigned long));
+	return debug_event_common(id, level, &t, sizeof(unsigned long));
 }
 
-static inline debug_entry_t*
-debug_text_event(debug_info_t* id, int level, const char* txt)
+static inline debug_entry_t *debug_text_event(debug_info_t *id, int level,
+					      const char *txt)
 {
 	if ((!id) || (level > id->level) || (id->pages_per_area == 0))
 		return NULL;
-        return debug_event_common(id,level,txt,strlen(txt));
+	return debug_event_common(id, level, txt, strlen(txt));
 }
 
 /*
@@ -161,6 +163,7 @@ __debug_sprintf_event(debug_info_t *id, int level, char *string, ...)
 	debug_entry_t *__ret;						\
 	debug_info_t *__id = _id;					\
 	int __level = _level;						\
+									\
 	if ((!__id) || (__level > __id->level))				\
 		__ret = NULL;						\
 	else								\
@@ -169,38 +172,40 @@ __debug_sprintf_event(debug_info_t *id, int level, char *string, ...)
 	__ret;								\
 })
 
-static inline debug_entry_t*
-debug_exception(debug_info_t* id, int level, void* data, int length)
+static inline debug_entry_t *debug_exception(debug_info_t *id, int level,
+					     void *data, int length)
 {
 	if ((!id) || (level > id->level) || (id->pages_per_area == 0))
 		return NULL;
-        return debug_exception_common(id,level,data,length);
+	return debug_exception_common(id, level, data, length);
 }
 
-static inline debug_entry_t*
-debug_int_exception(debug_info_t* id, int level, unsigned int tag)
+static inline debug_entry_t *debug_int_exception(debug_info_t *id, int level,
+						 unsigned int tag)
 {
-        unsigned int t=tag;
+	unsigned int t = tag;
+
 	if ((!id) || (level > id->level) || (id->pages_per_area == 0))
 		return NULL;
-        return debug_exception_common(id,level,&t,sizeof(unsigned int));
+	return debug_exception_common(id, level, &t, sizeof(unsigned int));
 }
 
-static inline debug_entry_t *
-debug_long_exception (debug_info_t* id, int level, unsigned long tag)
+static inline debug_entry_t *debug_long_exception (debug_info_t *id, int level,
+						   unsigned long tag)
 {
-        unsigned long t=tag;
+	unsigned long t = tag;
+
 	if ((!id) || (level > id->level) || (id->pages_per_area == 0))
 		return NULL;
-        return debug_exception_common(id,level,&t,sizeof(unsigned long));
+	return debug_exception_common(id, level, &t, sizeof(unsigned long));
 }
 
-static inline debug_entry_t*
-debug_text_exception(debug_info_t* id, int level, const char* txt)
+static inline debug_entry_t *debug_text_exception(debug_info_t *id, int level,
+						  const char *txt)
 {
 	if ((!id) || (level > id->level) || (id->pages_per_area == 0))
 		return NULL;
-        return debug_exception_common(id,level,txt,strlen(txt));
+	return debug_exception_common(id, level, txt, strlen(txt));
 }
 
 /*
@@ -216,6 +221,7 @@ __debug_sprintf_exception(debug_info_t *id, int level, char *string, ...)
 	debug_entry_t *__ret;						\
 	debug_info_t *__id = _id;					\
 	int __level = _level;						\
+									\
 	if ((!__id) || (__level > __id->level))				\
 		__ret = NULL;						\
 	else								\
@@ -224,13 +230,13 @@ __debug_sprintf_exception(debug_info_t *id, int level, char *string, ...)
 	__ret;								\
 })
 
-int debug_register_view(debug_info_t* id, struct debug_view* view);
-int debug_unregister_view(debug_info_t* id, struct debug_view* view);
+int debug_register_view(debug_info_t *id, struct debug_view *view);
+int debug_unregister_view(debug_info_t *id, struct debug_view *view);
 
 /*
    define the debug levels:
    - 0 No debugging output to console or syslog
-   - 1 Log internal errors to syslog, ignore check conditions 
+   - 1 Log internal errors to syslog, ignore check conditions
    - 2 Log internal errors and check conditions to syslog
    - 3 Log internal errors to console, log check conditions to syslog
    - 4 Log internal errors and check conditions to console
@@ -248,17 +254,17 @@ int debug_unregister_view(debug_info_t* id, struct debug_view* view);
 #define INTERNAL_DEBMSG(x,y...) "D" __FILE__ "%d: " x, __LINE__, y
 
 #if DEBUG_LEVEL > 0
-#define PRINT_DEBUG(x...) printk ( KERN_DEBUG PRINTK_HEADER x )
-#define PRINT_INFO(x...) printk ( KERN_INFO PRINTK_HEADER x )
-#define PRINT_WARN(x...) printk ( KERN_WARNING PRINTK_HEADER x )
-#define PRINT_ERR(x...) printk ( KERN_ERR PRINTK_HEADER x )
-#define PRINT_FATAL(x...) panic ( PRINTK_HEADER x )
+#define PRINT_DEBUG(x...)	printk(KERN_DEBUG PRINTK_HEADER x)
+#define PRINT_INFO(x...)	printk(KERN_INFO PRINTK_HEADER x)
+#define PRINT_WARN(x...)	printk(KERN_WARNING PRINTK_HEADER x)
+#define PRINT_ERR(x...)		printk(KERN_ERR PRINTK_HEADER x)
+#define PRINT_FATAL(x...)	panic(PRINTK_HEADER x)
 #else
-#define PRINT_DEBUG(x...) printk ( KERN_DEBUG PRINTK_HEADER x )
-#define PRINT_INFO(x...) printk ( KERN_DEBUG PRINTK_HEADER x )
-#define PRINT_WARN(x...) printk ( KERN_DEBUG PRINTK_HEADER x )
-#define PRINT_ERR(x...) printk ( KERN_DEBUG PRINTK_HEADER x )
-#define PRINT_FATAL(x...) printk ( KERN_DEBUG PRINTK_HEADER x )
-#endif				/* DASD_DEBUG */
-
-#endif				/* DEBUG_H */
+#define PRINT_DEBUG(x...)	printk(KERN_DEBUG PRINTK_HEADER x)
+#define PRINT_INFO(x...)	printk(KERN_DEBUG PRINTK_HEADER x)
+#define PRINT_WARN(x...)	printk(KERN_DEBUG PRINTK_HEADER x)
+#define PRINT_ERR(x...)		printk(KERN_DEBUG PRINTK_HEADER x)
+#define PRINT_FATAL(x...)	printk(KERN_DEBUG PRINTK_HEADER x)
+#endif /* DASD_DEBUG */
+
+#endif /* DEBUG_H */
diff --git a/arch/s390/include/asm/dis.h b/arch/s390/include/asm/dis.h
index 78d1b2d725b9..b0480c60a8e1 100644
--- a/arch/s390/include/asm/dis.h
+++ b/arch/s390/include/asm/dis.h
@@ -9,32 +9,7 @@
 #ifndef __ASM_S390_DIS_H__
 #define __ASM_S390_DIS_H__
 
-/* Type of operand */
-#define OPERAND_GPR	0x1	/* Operand printed as %rx */
-#define OPERAND_FPR	0x2	/* Operand printed as %fx */
-#define OPERAND_AR	0x4	/* Operand printed as %ax */
-#define OPERAND_CR	0x8	/* Operand printed as %cx */
-#define OPERAND_VR	0x10	/* Operand printed as %vx */
-#define OPERAND_DISP	0x20	/* Operand printed as displacement */
-#define OPERAND_BASE	0x40	/* Operand printed as base register */
-#define OPERAND_INDEX	0x80	/* Operand printed as index register */
-#define OPERAND_PCREL	0x100	/* Operand printed as pc-relative symbol */
-#define OPERAND_SIGNED	0x200	/* Operand printed as signed value */
-#define OPERAND_LENGTH	0x400	/* Operand printed as length (+1) */
-
-
-struct s390_operand {
-	int bits;		/* The number of bits in the operand. */
-	int shift;		/* The number of bits to shift. */
-	int flags;		/* One bit syntax flags. */
-};
-
-struct s390_insn {
-	const char name[5];
-	unsigned char opfrag;
-	unsigned char format;
-};
-
+#include <generated/dis.h>
 
 static inline int insn_length(unsigned char code)
 {
@@ -45,7 +20,6 @@ struct pt_regs;
 
 void show_code(struct pt_regs *regs);
 void print_fn_code(unsigned char *code, unsigned long len);
-int insn_to_mnemonic(unsigned char *instruction, char *buf, unsigned int len);
 struct s390_insn *find_insn(unsigned char *code);
 
 static inline int is_known_insn(unsigned char *code)
diff --git a/arch/s390/include/asm/ipl.h b/arch/s390/include/asm/ipl.h
index 5a8d92758a58..186c7b5f5511 100644
--- a/arch/s390/include/asm/ipl.h
+++ b/arch/s390/include/asm/ipl.h
@@ -13,6 +13,8 @@
 #include <asm/cio.h>
 #include <asm/setup.h>
 
+#define NSS_NAME_SIZE	8
+
 #define IPL_PARMBLOCK_ORIGIN	0x2000
 
 #define IPL_PARM_BLK_FCP_LEN (sizeof(struct ipl_list_hdr) + \
@@ -106,7 +108,6 @@ extern size_t append_ipl_scpdata(char *, size_t);
 enum {
 	IPL_DEVNO_VALID		= 1,
 	IPL_PARMBLOCK_VALID	= 2,
-	IPL_NSS_VALID		= 4,
 };
 
 enum ipl_type {
diff --git a/arch/s390/include/asm/kprobes.h b/arch/s390/include/asm/kprobes.h
index 28792ef82c83..921391f2341e 100644
--- a/arch/s390/include/asm/kprobes.h
+++ b/arch/s390/include/asm/kprobes.h
@@ -63,8 +63,6 @@ typedef u16 kprobe_opcode_t;
 
 #define kretprobe_blacklist_size 0
 
-#define KPROBE_SWAP_INST	0x10
-
 /* Architecture specific copy of original instruction */
 struct arch_specific_insn {
 	/* copy of original instruction */
diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h
index 51375e766e90..fd006a272024 100644
--- a/arch/s390/include/asm/kvm_host.h
+++ b/arch/s390/include/asm/kvm_host.h
@@ -736,7 +736,6 @@ struct kvm_arch{
 	wait_queue_head_t ipte_wq;
 	int ipte_lock_count;
 	struct mutex ipte_mutex;
-	struct ratelimit_state sthyi_limit;
 	spinlock_t start_stop_lock;
 	struct sie_page2 *sie_page2;
 	struct kvm_s390_cpu_model model;
diff --git a/arch/s390/include/asm/lowcore.h b/arch/s390/include/asm/lowcore.h
index 917f7344cab6..9eb36a1592c7 100644
--- a/arch/s390/include/asm/lowcore.h
+++ b/arch/s390/include/asm/lowcore.h
@@ -134,8 +134,9 @@ struct lowcore {
 	__u8	pad_0x03b4[0x03b8-0x03b4];	/* 0x03b4 */
 	__u64	gmap;				/* 0x03b8 */
 	__u32	spinlock_lockval;		/* 0x03c0 */
-	__u32	fpu_flags;			/* 0x03c4 */
-	__u8	pad_0x03c8[0x0400-0x03c8];	/* 0x03c8 */
+	__u32	spinlock_index;			/* 0x03c4 */
+	__u32	fpu_flags;			/* 0x03c8 */
+	__u8	pad_0x03cc[0x0400-0x03cc];	/* 0x03cc */
 
 	/* Per cpu primary space access list */
 	__u32	paste[16];			/* 0x0400 */
diff --git a/arch/s390/include/asm/nmi.h b/arch/s390/include/asm/nmi.h
index c8a7beadd3d4..1e5dc4537bf2 100644
--- a/arch/s390/include/asm/nmi.h
+++ b/arch/s390/include/asm/nmi.h
@@ -26,12 +26,9 @@
 #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)
-
-#define MCCK_CR14_CR_PENDING_SUB_MASK	(1 << 28)
-#define MCCK_CR14_RECOVERY_SUB_MASK	(1 << 27)
-#define MCCK_CR14_DEGRAD_SUB_MASK	(1 << 26)
-#define MCCK_CR14_EXT_DAMAGE_SUB_MASK	(1 << 25)
-#define MCCK_CR14_WARN_SUB_MASK		(1 << 24)
+#define MCCK_CODE_CR_VALID		_BITUL(63 - 29)
+#define MCCK_CODE_GS_VALID		_BITUL(63 - 36)
+#define MCCK_CODE_FC_VALID		_BITUL(63 - 43)
 
 #ifndef __ASSEMBLY__
 
@@ -87,6 +84,8 @@ union mci {
 
 #define MCESA_ORIGIN_MASK	(~0x3ffUL)
 #define MCESA_LC_MASK		(0xfUL)
+#define MCESA_MIN_SIZE		(1024)
+#define MCESA_MAX_SIZE		(2048)
 
 struct mcesa {
 	u8 vector_save_area[1024];
@@ -95,8 +94,12 @@ struct mcesa {
 
 struct pt_regs;
 
-extern void s390_handle_mcck(void);
-extern void s390_do_machine_check(struct pt_regs *regs);
+void nmi_alloc_boot_cpu(struct lowcore *lc);
+int nmi_alloc_per_cpu(struct lowcore *lc);
+void nmi_free_per_cpu(struct lowcore *lc);
+
+void s390_handle_mcck(void);
+void s390_do_machine_check(struct pt_regs *regs);
 
 #endif /* __ASSEMBLY__ */
 #endif /* _ASM_S390_NMI_H */
diff --git a/arch/s390/include/asm/pci_debug.h b/arch/s390/include/asm/pci_debug.h
index 6c2c38060f8b..5dfe47588277 100644
--- a/arch/s390/include/asm/pci_debug.h
+++ b/arch/s390/include/asm/pci_debug.h
@@ -19,11 +19,7 @@ extern debug_info_t *pci_debug_err_id;
 
 static inline void zpci_err_hex(void *addr, int len)
 {
-	while (len > 0) {
-		debug_event(pci_debug_err_id, 0, (void *) addr, len);
-		len -= pci_debug_err_id->buf_size;
-		addr += pci_debug_err_id->buf_size;
-	}
+	debug_event(pci_debug_err_id, 0, addr, len);
 }
 
 #endif
diff --git a/arch/s390/include/asm/pci_insn.h b/arch/s390/include/asm/pci_insn.h
index 419e83fa4721..ba22a6ea51a1 100644
--- a/arch/s390/include/asm/pci_insn.h
+++ b/arch/s390/include/asm/pci_insn.h
@@ -82,6 +82,6 @@ int zpci_refresh_trans(u64 fn, u64 addr, u64 range);
 int zpci_load(u64 *data, u64 req, u64 offset);
 int zpci_store(u64 data, u64 req, u64 offset);
 int zpci_store_block(const u64 *data, u64 req, u64 offset);
-void zpci_set_irq_ctrl(u16 ctl, char *unused, u8 isc);
+int zpci_set_irq_ctrl(u16 ctl, char *unused, u8 isc);
 
 #endif
diff --git a/arch/s390/include/asm/pgalloc.h b/arch/s390/include/asm/pgalloc.h
index bbe99cb8219d..c7b4333d1de0 100644
--- a/arch/s390/include/asm/pgalloc.h
+++ b/arch/s390/include/asm/pgalloc.h
@@ -13,6 +13,7 @@
 #define _S390_PGALLOC_H
 
 #include <linux/threads.h>
+#include <linux/string.h>
 #include <linux/gfp.h>
 #include <linux/mm.h>
 
@@ -28,24 +29,9 @@ void page_table_free_rcu(struct mmu_gather *, unsigned long *, unsigned long);
 void page_table_free_pgste(struct page *page);
 extern int page_table_allocate_pgste;
 
-static inline void clear_table(unsigned long *s, unsigned long val, size_t n)
-{
-	struct addrtype { char _[256]; };
-	int i;
-
-	for (i = 0; i < n; i += 256) {
-		*s = val;
-		asm volatile(
-			"mvc	8(248,%[s]),0(%[s])\n"
-			: "+m" (*(struct addrtype *) s)
-			: [s] "a" (s));
-		s += 256 / sizeof(long);
-	}
-}
-
 static inline void crst_table_init(unsigned long *crst, unsigned long entry)
 {
-	clear_table(crst, entry, _CRST_TABLE_SIZE);
+	memset64((u64 *)crst, entry, _CRST_ENTRIES);
 }
 
 static inline unsigned long pgd_entry_type(struct mm_struct *mm)
diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h
index 9cf92abe23c3..f25bfe888933 100644
--- a/arch/s390/include/asm/processor.h
+++ b/arch/s390/include/asm/processor.h
@@ -22,6 +22,7 @@
 #define CIF_IGNORE_IRQ		5	/* ignore interrupt (for udelay) */
 #define CIF_ENABLED_WAIT	6	/* in enabled wait state */
 #define CIF_MCCK_GUEST		7	/* machine check happening in guest */
+#define CIF_DEDICATED_CPU	8	/* this CPU is dedicated */
 
 #define _CIF_MCCK_PENDING	_BITUL(CIF_MCCK_PENDING)
 #define _CIF_ASCE_PRIMARY	_BITUL(CIF_ASCE_PRIMARY)
@@ -31,6 +32,7 @@
 #define _CIF_IGNORE_IRQ		_BITUL(CIF_IGNORE_IRQ)
 #define _CIF_ENABLED_WAIT	_BITUL(CIF_ENABLED_WAIT)
 #define _CIF_MCCK_GUEST		_BITUL(CIF_MCCK_GUEST)
+#define _CIF_DEDICATED_CPU	_BITUL(CIF_DEDICATED_CPU)
 
 #ifndef __ASSEMBLY__
 
@@ -219,10 +221,10 @@ void show_registers(struct pt_regs *regs);
 void show_cacheinfo(struct seq_file *m);
 
 /* Free all resources held by a thread. */
-extern void release_thread(struct task_struct *);
+static inline void release_thread(struct task_struct *tsk) { }
 
-/* Free guarded storage control block for current */
-void exit_thread_gs(void);
+/* Free guarded storage control block */
+void guarded_storage_release(struct task_struct *tsk);
 
 unsigned long get_wchan(struct task_struct *p);
 #define task_pt_regs(tsk) ((struct pt_regs *) \
diff --git a/arch/s390/include/asm/runtime_instr.h b/arch/s390/include/asm/runtime_instr.h
index ea8896ba5afc..6b1540337ed6 100644
--- a/arch/s390/include/asm/runtime_instr.h
+++ b/arch/s390/include/asm/runtime_instr.h
@@ -6,55 +6,55 @@
 #define S390_RUNTIME_INSTR_STOP		0x2
 
 struct runtime_instr_cb {
-	__u64 buf_current;
-	__u64 buf_origin;
-	__u64 buf_limit;
+	__u64 rca;
+	__u64 roa;
+	__u64 rla;
 
-	__u32 valid		: 1;
-	__u32 pstate		: 1;
-	__u32 pstate_set_buf	: 1;
-	__u32 home_space	: 1;
-	__u32 altered		: 1;
-	__u32			: 3;
-	__u32 pstate_sample	: 1;
-	__u32 sstate_sample	: 1;
-	__u32 pstate_collect	: 1;
-	__u32 sstate_collect	: 1;
-	__u32			: 1;
-	__u32 halted_int	: 1;
-	__u32 int_requested	: 1;
-	__u32 buffer_full_int	: 1;
+	__u32 v			: 1;
+	__u32 s			: 1;
+	__u32 k			: 1;
+	__u32 h			: 1;
+	__u32 a			: 1;
+	__u32 reserved1		: 3;
+	__u32 ps		: 1;
+	__u32 qs		: 1;
+	__u32 pc		: 1;
+	__u32 qc		: 1;
+	__u32 reserved2		: 1;
+	__u32 g			: 1;
+	__u32 u			: 1;
+	__u32 l			: 1;
 	__u32 key		: 4;
-	__u32			: 9;
+	__u32 reserved3		: 8;
+	__u32 t			: 1;
 	__u32 rgs		: 3;
 
-	__u32 mode		: 4;
-	__u32 next		: 1;
+	__u32 m			: 4;
+	__u32 n			: 1;
 	__u32 mae		: 1;
-	__u32			: 2;
-	__u32 call_type_br	: 1;
-	__u32 return_type_br	: 1;
-	__u32 other_type_br	: 1;
-	__u32 bc_other_type	: 1;
-	__u32 emit		: 1;
-	__u32 tx_abort		: 1;
-	__u32			: 2;
-	__u32 bp_xn		: 1;
-	__u32 bp_xt		: 1;
-	__u32 bp_ti		: 1;
-	__u32 bp_ni		: 1;
-	__u32 suppr_y		: 1;
-	__u32 suppr_z		: 1;
+	__u32 reserved4		: 2;
+	__u32 c			: 1;
+	__u32 r			: 1;
+	__u32 b			: 1;
+	__u32 j			: 1;
+	__u32 e			: 1;
+	__u32 x			: 1;
+	__u32 reserved5		: 2;
+	__u32 bpxn		: 1;
+	__u32 bpxt		: 1;
+	__u32 bpti		: 1;
+	__u32 bpni		: 1;
+	__u32 reserved6		: 2;
 
-	__u32 dc_miss_extra	: 1;
-	__u32 lat_lev_ignore	: 1;
-	__u32 ic_lat_lev	: 4;
-	__u32 dc_lat_lev	: 4;
+	__u32 d			: 1;
+	__u32 f			: 1;
+	__u32 ic		: 4;
+	__u32 dc		: 4;
 
-	__u64 reserved1;
-	__u64 scaling_factor;
+	__u64 reserved7;
+	__u64 sf;
 	__u64 rsic;
-	__u64 reserved2;
+	__u64 reserved8;
 } __packed __aligned(8);
 
 extern struct runtime_instr_cb runtime_instr_empty_cb;
@@ -86,6 +86,8 @@ static inline void restore_ri_cb(struct runtime_instr_cb *cb_next,
 		load_runtime_instr_cb(&runtime_instr_empty_cb);
 }
 
-void exit_thread_runtime_instr(void);
+struct task_struct;
+
+void runtime_instr_release(struct task_struct *tsk);
 
 #endif /* _RUNTIME_INSTR_H */
diff --git a/arch/s390/include/asm/rwsem.h b/arch/s390/include/asm/rwsem.h
deleted file mode 100644
index f731b7b518bd..000000000000
--- a/arch/s390/include/asm/rwsem.h
+++ /dev/null
@@ -1,211 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _S390_RWSEM_H
-#define _S390_RWSEM_H
-
-/*
- *  S390 version
- *    Copyright IBM Corp. 2002
- *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
- *
- *  Based on asm-alpha/semaphore.h and asm-i386/rwsem.h
- */
-
-/*
- *
- * The MSW of the count is the negated number of active writers and waiting
- * lockers, and the LSW is the total number of active locks
- *
- * The lock count is initialized to 0 (no active and no waiting lockers).
- *
- * When a writer subtracts WRITE_BIAS, it'll get 0xffff0001 for the case of an
- * uncontended lock. This can be determined because XADD returns the old value.
- * Readers increment by 1 and see a positive value when uncontended, negative
- * if there are writers (and maybe) readers waiting (in which case it goes to
- * sleep).
- *
- * The value of WAITING_BIAS supports up to 32766 waiting processes. This can
- * be extended to 65534 by manually checking the whole MSW rather than relying
- * on the S flag.
- *
- * The value of ACTIVE_BIAS supports up to 65535 active processes.
- *
- * This should be totally fair - if anything is waiting, a process that wants a
- * lock will go to the back of the queue. When the currently active lock is
- * released, if there's a writer at the front of the queue, then that and only
- * that will be woken up; if there's a bunch of consecutive readers at the
- * front, then they'll all be woken up, but no other readers will be.
- */
-
-#ifndef _LINUX_RWSEM_H
-#error "please don't include asm/rwsem.h directly, use linux/rwsem.h instead"
-#endif
-
-#define RWSEM_UNLOCKED_VALUE	0x0000000000000000L
-#define RWSEM_ACTIVE_BIAS	0x0000000000000001L
-#define RWSEM_ACTIVE_MASK	0x00000000ffffffffL
-#define RWSEM_WAITING_BIAS	(-0x0000000100000000L)
-#define RWSEM_ACTIVE_READ_BIAS	RWSEM_ACTIVE_BIAS
-#define RWSEM_ACTIVE_WRITE_BIAS	(RWSEM_WAITING_BIAS + RWSEM_ACTIVE_BIAS)
-
-/*
- * lock for reading
- */
-static inline void __down_read(struct rw_semaphore *sem)
-{
-	signed long old, new;
-
-	asm volatile(
-		"	lg	%0,%2\n"
-		"0:	lgr	%1,%0\n"
-		"	aghi	%1,%4\n"
-		"	csg	%0,%1,%2\n"
-		"	jl	0b"
-		: "=&d" (old), "=&d" (new), "=Q" (sem->count)
-		: "Q" (sem->count), "i" (RWSEM_ACTIVE_READ_BIAS)
-		: "cc", "memory");
-	if (old < 0)
-		rwsem_down_read_failed(sem);
-}
-
-/*
- * trylock for reading -- returns 1 if successful, 0 if contention
- */
-static inline int __down_read_trylock(struct rw_semaphore *sem)
-{
-	signed long old, new;
-
-	asm volatile(
-		"	lg	%0,%2\n"
-		"0:	ltgr	%1,%0\n"
-		"	jm	1f\n"
-		"	aghi	%1,%4\n"
-		"	csg	%0,%1,%2\n"
-		"	jl	0b\n"
-		"1:"
-		: "=&d" (old), "=&d" (new), "=Q" (sem->count)
-		: "Q" (sem->count), "i" (RWSEM_ACTIVE_READ_BIAS)
-		: "cc", "memory");
-	return old >= 0 ? 1 : 0;
-}
-
-/*
- * lock for writing
- */
-static inline long ___down_write(struct rw_semaphore *sem)
-{
-	signed long old, new, tmp;
-
-	tmp = RWSEM_ACTIVE_WRITE_BIAS;
-	asm volatile(
-		"	lg	%0,%2\n"
-		"0:	lgr	%1,%0\n"
-		"	ag	%1,%4\n"
-		"	csg	%0,%1,%2\n"
-		"	jl	0b"
-		: "=&d" (old), "=&d" (new), "=Q" (sem->count)
-		: "Q" (sem->count), "m" (tmp)
-		: "cc", "memory");
-
-	return old;
-}
-
-static inline void __down_write(struct rw_semaphore *sem)
-{
-	if (___down_write(sem))
-		rwsem_down_write_failed(sem);
-}
-
-static inline int __down_write_killable(struct rw_semaphore *sem)
-{
-	if (___down_write(sem))
-		if (IS_ERR(rwsem_down_write_failed_killable(sem)))
-			return -EINTR;
-
-	return 0;
-}
-
-/*
- * trylock for writing -- returns 1 if successful, 0 if contention
- */
-static inline int __down_write_trylock(struct rw_semaphore *sem)
-{
-	signed long old;
-
-	asm volatile(
-		"	lg	%0,%1\n"
-		"0:	ltgr	%0,%0\n"
-		"	jnz	1f\n"
-		"	csg	%0,%3,%1\n"
-		"	jl	0b\n"
-		"1:"
-		: "=&d" (old), "=Q" (sem->count)
-		: "Q" (sem->count), "d" (RWSEM_ACTIVE_WRITE_BIAS)
-		: "cc", "memory");
-	return (old == RWSEM_UNLOCKED_VALUE) ? 1 : 0;
-}
-
-/*
- * unlock after reading
- */
-static inline void __up_read(struct rw_semaphore *sem)
-{
-	signed long old, new;
-
-	asm volatile(
-		"	lg	%0,%2\n"
-		"0:	lgr	%1,%0\n"
-		"	aghi	%1,%4\n"
-		"	csg	%0,%1,%2\n"
-		"	jl	0b"
-		: "=&d" (old), "=&d" (new), "=Q" (sem->count)
-		: "Q" (sem->count), "i" (-RWSEM_ACTIVE_READ_BIAS)
-		: "cc", "memory");
-	if (new < 0)
-		if ((new & RWSEM_ACTIVE_MASK) == 0)
-			rwsem_wake(sem);
-}
-
-/*
- * unlock after writing
- */
-static inline void __up_write(struct rw_semaphore *sem)
-{
-	signed long old, new, tmp;
-
-	tmp = -RWSEM_ACTIVE_WRITE_BIAS;
-	asm volatile(
-		"	lg	%0,%2\n"
-		"0:	lgr	%1,%0\n"
-		"	ag	%1,%4\n"
-		"	csg	%0,%1,%2\n"
-		"	jl	0b"
-		: "=&d" (old), "=&d" (new), "=Q" (sem->count)
-		: "Q" (sem->count), "m" (tmp)
-		: "cc", "memory");
-	if (new < 0)
-		if ((new & RWSEM_ACTIVE_MASK) == 0)
-			rwsem_wake(sem);
-}
-
-/*
- * downgrade write lock to read lock
- */
-static inline void __downgrade_write(struct rw_semaphore *sem)
-{
-	signed long old, new, tmp;
-
-	tmp = -RWSEM_WAITING_BIAS;
-	asm volatile(
-		"	lg	%0,%2\n"
-		"0:	lgr	%1,%0\n"
-		"	ag	%1,%4\n"
-		"	csg	%0,%1,%2\n"
-		"	jl	0b"
-		: "=&d" (old), "=&d" (new), "=Q" (sem->count)
-		: "Q" (sem->count), "m" (tmp)
-		: "cc", "memory");
-	if (new > 1)
-		rwsem_downgrade_wake(sem);
-}
-
-#endif /* _S390_RWSEM_H */
diff --git a/arch/s390/include/asm/sections.h b/arch/s390/include/asm/sections.h
index 0ac3e8166e85..54f81f8ed662 100644
--- a/arch/s390/include/asm/sections.h
+++ b/arch/s390/include/asm/sections.h
@@ -4,6 +4,6 @@
 
 #include <asm-generic/sections.h>
 
-extern char _eshared[], _ehead[];
+extern char _ehead[];
 
 #endif
diff --git a/arch/s390/include/asm/setup.h b/arch/s390/include/asm/setup.h
index f2c2b7cd9099..8bc87dcb10eb 100644
--- a/arch/s390/include/asm/setup.h
+++ b/arch/s390/include/asm/setup.h
@@ -98,9 +98,6 @@ extern char vmpoff_cmd[];
 #define SET_CONSOLE_VT220	do { console_mode = 4; } while (0)
 #define SET_CONSOLE_HVC		do { console_mode = 5; } while (0)
 
-#define NSS_NAME_SIZE	8
-extern char kernel_nss_name[];
-
 #ifdef CONFIG_PFAULT
 extern int pfault_init(void);
 extern void pfault_fini(void);
diff --git a/arch/s390/include/asm/smp.h b/arch/s390/include/asm/smp.h
index babe83ed416c..3907ead27ffa 100644
--- a/arch/s390/include/asm/smp.h
+++ b/arch/s390/include/asm/smp.h
@@ -28,6 +28,7 @@ extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
 
 extern void smp_call_online_cpu(void (*func)(void *), void *);
 extern void smp_call_ipl_cpu(void (*func)(void *), void *);
+extern void smp_emergency_stop(void);
 
 extern int smp_find_processor_id(u16 address);
 extern int smp_store_status(int cpu);
@@ -53,6 +54,10 @@ static inline void smp_call_online_cpu(void (*func)(void *), void *data)
 	func(data);
 }
 
+static inline void smp_emergency_stop(void)
+{
+}
+
 static inline int smp_find_processor_id(u16 address) { return 0; }
 static inline int smp_store_status(int cpu) { return 0; }
 static inline int smp_vcpu_scheduled(int cpu) { return 1; }
diff --git a/arch/s390/include/asm/spinlock.h b/arch/s390/include/asm/spinlock.h
index f3f5e0155b10..31f95a636aed 100644
--- a/arch/s390/include/asm/spinlock.h
+++ b/arch/s390/include/asm/spinlock.h
@@ -14,6 +14,7 @@
 #include <asm/atomic_ops.h>
 #include <asm/barrier.h>
 #include <asm/processor.h>
+#include <asm/alternative.h>
 
 #define SPINLOCK_LOCKVAL (S390_lowcore.spinlock_lockval)
 
@@ -36,20 +37,15 @@ bool arch_vcpu_is_preempted(int cpu);
  * (the type definitions are in asm/spinlock_types.h)
  */
 
-void arch_lock_relax(int cpu);
+void arch_spin_relax(arch_spinlock_t *lock);
 
 void arch_spin_lock_wait(arch_spinlock_t *);
 int arch_spin_trylock_retry(arch_spinlock_t *);
-void arch_spin_lock_wait_flags(arch_spinlock_t *, unsigned long flags);
-
-static inline void arch_spin_relax(arch_spinlock_t *lock)
-{
-	arch_lock_relax(lock->lock);
-}
+void arch_spin_lock_setup(int cpu);
 
 static inline u32 arch_spin_lockval(int cpu)
 {
-	return ~cpu;
+	return cpu + 1;
 }
 
 static inline int arch_spin_value_unlocked(arch_spinlock_t lock)
@@ -65,8 +61,7 @@ static inline int arch_spin_is_locked(arch_spinlock_t *lp)
 static inline int arch_spin_trylock_once(arch_spinlock_t *lp)
 {
 	barrier();
-	return likely(arch_spin_value_unlocked(*lp) &&
-		      __atomic_cmpxchg_bool(&lp->lock, 0, SPINLOCK_LOCKVAL));
+	return likely(__atomic_cmpxchg_bool(&lp->lock, 0, SPINLOCK_LOCKVAL));
 }
 
 static inline void arch_spin_lock(arch_spinlock_t *lp)
@@ -79,7 +74,7 @@ static inline void arch_spin_lock_flags(arch_spinlock_t *lp,
 					unsigned long flags)
 {
 	if (!arch_spin_trylock_once(lp))
-		arch_spin_lock_wait_flags(lp, flags);
+		arch_spin_lock_wait(lp);
 }
 
 static inline int arch_spin_trylock(arch_spinlock_t *lp)
@@ -93,11 +88,10 @@ static inline void arch_spin_unlock(arch_spinlock_t *lp)
 {
 	typecheck(int, lp->lock);
 	asm volatile(
-#ifdef CONFIG_HAVE_MARCH_ZEC12_FEATURES
-		"	.long	0xb2fa0070\n"	/* NIAI 7 */
-#endif
-		"	st	%1,%0\n"
-		: "=Q" (lp->lock) : "d" (0) : "cc", "memory");
+		ALTERNATIVE("", ".long 0xb2fa0070", 49)	/* NIAI 7 */
+		"	sth	%1,%0\n"
+		: "=Q" (((unsigned short *) &lp->lock)[1])
+		: "d" (0) : "cc", "memory");
 }
 
 /*
@@ -115,164 +109,63 @@ static inline void arch_spin_unlock(arch_spinlock_t *lp)
  * read_can_lock - would read_trylock() succeed?
  * @lock: the rwlock in question.
  */
-#define arch_read_can_lock(x) ((int)(x)->lock >= 0)
+#define arch_read_can_lock(x) (((x)->cnts & 0xffff0000) == 0)
 
 /**
  * write_can_lock - would write_trylock() succeed?
  * @lock: the rwlock in question.
  */
-#define arch_write_can_lock(x) ((x)->lock == 0)
-
-extern int _raw_read_trylock_retry(arch_rwlock_t *lp);
-extern int _raw_write_trylock_retry(arch_rwlock_t *lp);
+#define arch_write_can_lock(x) ((x)->cnts == 0)
 
 #define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
 #define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
+#define arch_read_relax(rw) barrier()
+#define arch_write_relax(rw) barrier()
 
-static inline int arch_read_trylock_once(arch_rwlock_t *rw)
-{
-	int old = ACCESS_ONCE(rw->lock);
-	return likely(old >= 0 &&
-		      __atomic_cmpxchg_bool(&rw->lock, old, old + 1));
-}
-
-static inline int arch_write_trylock_once(arch_rwlock_t *rw)
-{
-	int old = ACCESS_ONCE(rw->lock);
-	return likely(old == 0 &&
-		      __atomic_cmpxchg_bool(&rw->lock, 0, 0x80000000));
-}
-
-#ifdef CONFIG_HAVE_MARCH_Z196_FEATURES
-
-#define __RAW_OP_OR	"lao"
-#define __RAW_OP_AND	"lan"
-#define __RAW_OP_ADD	"laa"
-
-#define __RAW_LOCK(ptr, op_val, op_string)		\
-({							\
-	int old_val;					\
-							\
-	typecheck(int *, ptr);				\
-	asm volatile(					\
-		op_string "	%0,%2,%1\n"		\
-		"bcr	14,0\n"				\
-		: "=d" (old_val), "+Q" (*ptr)		\
-		: "d" (op_val)				\
-		: "cc", "memory");			\
-	old_val;					\
-})
-
-#define __RAW_UNLOCK(ptr, op_val, op_string)		\
-({							\
-	int old_val;					\
-							\
-	typecheck(int *, ptr);				\
-	asm volatile(					\
-		op_string "	%0,%2,%1\n"		\
-		: "=d" (old_val), "+Q" (*ptr)		\
-		: "d" (op_val)				\
-		: "cc", "memory");			\
-	old_val;					\
-})
-
-extern void _raw_read_lock_wait(arch_rwlock_t *lp);
-extern void _raw_write_lock_wait(arch_rwlock_t *lp, int prev);
+void arch_read_lock_wait(arch_rwlock_t *lp);
+void arch_write_lock_wait(arch_rwlock_t *lp);
 
 static inline void arch_read_lock(arch_rwlock_t *rw)
 {
 	int old;
 
-	old = __RAW_LOCK(&rw->lock, 1, __RAW_OP_ADD);
-	if (old < 0)
-		_raw_read_lock_wait(rw);
+	old = __atomic_add(1, &rw->cnts);
+	if (old & 0xffff0000)
+		arch_read_lock_wait(rw);
 }
 
 static inline void arch_read_unlock(arch_rwlock_t *rw)
 {
-	__RAW_UNLOCK(&rw->lock, -1, __RAW_OP_ADD);
+	__atomic_add_const_barrier(-1, &rw->cnts);
 }
 
 static inline void arch_write_lock(arch_rwlock_t *rw)
 {
-	int old;
-
-	old = __RAW_LOCK(&rw->lock, 0x80000000, __RAW_OP_OR);
-	if (old != 0)
-		_raw_write_lock_wait(rw, old);
-	rw->owner = SPINLOCK_LOCKVAL;
+	if (!__atomic_cmpxchg_bool(&rw->cnts, 0, 0x30000))
+		arch_write_lock_wait(rw);
 }
 
 static inline void arch_write_unlock(arch_rwlock_t *rw)
 {
-	rw->owner = 0;
-	__RAW_UNLOCK(&rw->lock, 0x7fffffff, __RAW_OP_AND);
+	__atomic_add_barrier(-0x30000, &rw->cnts);
 }
 
-#else /* CONFIG_HAVE_MARCH_Z196_FEATURES */
 
-extern void _raw_read_lock_wait(arch_rwlock_t *lp);
-extern void _raw_write_lock_wait(arch_rwlock_t *lp);
-
-static inline void arch_read_lock(arch_rwlock_t *rw)
-{
-	if (!arch_read_trylock_once(rw))
-		_raw_read_lock_wait(rw);
-}
-
-static inline void arch_read_unlock(arch_rwlock_t *rw)
+static inline int arch_read_trylock(arch_rwlock_t *rw)
 {
 	int old;
 
-	do {
-		old = ACCESS_ONCE(rw->lock);
-	} while (!__atomic_cmpxchg_bool(&rw->lock, old, old - 1));
-}
-
-static inline void arch_write_lock(arch_rwlock_t *rw)
-{
-	if (!arch_write_trylock_once(rw))
-		_raw_write_lock_wait(rw);
-	rw->owner = SPINLOCK_LOCKVAL;
-}
-
-static inline void arch_write_unlock(arch_rwlock_t *rw)
-{
-	typecheck(int, rw->lock);
-
-	rw->owner = 0;
-	asm volatile(
-		"st	%1,%0\n"
-		: "+Q" (rw->lock)
-		: "d" (0)
-		: "cc", "memory");
-}
-
-#endif /* CONFIG_HAVE_MARCH_Z196_FEATURES */
-
-static inline int arch_read_trylock(arch_rwlock_t *rw)
-{
-	if (!arch_read_trylock_once(rw))
-		return _raw_read_trylock_retry(rw);
-	return 1;
+	old = READ_ONCE(rw->cnts);
+	return (!(old & 0xffff0000) &&
+		__atomic_cmpxchg_bool(&rw->cnts, old, old + 1));
 }
 
 static inline int arch_write_trylock(arch_rwlock_t *rw)
 {
-	if (!arch_write_trylock_once(rw) && !_raw_write_trylock_retry(rw))
-		return 0;
-	rw->owner = SPINLOCK_LOCKVAL;
-	return 1;
-}
-
-static inline void arch_read_relax(arch_rwlock_t *rw)
-{
-	arch_lock_relax(rw->owner);
-}
+	int old;
 
-static inline void arch_write_relax(arch_rwlock_t *rw)
-{
-	arch_lock_relax(rw->owner);
+	old = READ_ONCE(rw->cnts);
+	return !old && __atomic_cmpxchg_bool(&rw->cnts, 0, 0x30000);
 }
 
 #endif /* __ASM_SPINLOCK_H */
diff --git a/arch/s390/include/asm/spinlock_types.h b/arch/s390/include/asm/spinlock_types.h
index 1861a0c5dd47..cfed272e4fd5 100644
--- a/arch/s390/include/asm/spinlock_types.h
+++ b/arch/s390/include/asm/spinlock_types.h
@@ -13,8 +13,8 @@ typedef struct {
 #define __ARCH_SPIN_LOCK_UNLOCKED { .lock = 0, }
 
 typedef struct {
-	int lock;
-	int owner;
+	int cnts;
+	arch_spinlock_t wait;
 } arch_rwlock_t;
 
 #define __ARCH_RW_LOCK_UNLOCKED		{ 0 }
diff --git a/arch/s390/include/asm/string.h b/arch/s390/include/asm/string.h
index 27ce494198f5..50f26fc9acb2 100644
--- a/arch/s390/include/asm/string.h
+++ b/arch/s390/include/asm/string.h
@@ -18,6 +18,9 @@
 #define __HAVE_ARCH_MEMMOVE	/* gcc builtin & arch function */
 #define __HAVE_ARCH_MEMSCAN	/* inline & arch function */
 #define __HAVE_ARCH_MEMSET	/* gcc builtin & arch function */
+#define __HAVE_ARCH_MEMSET16	/* arch function */
+#define __HAVE_ARCH_MEMSET32	/* arch function */
+#define __HAVE_ARCH_MEMSET64	/* arch function */
 #define __HAVE_ARCH_STRCAT	/* inline & arch function */
 #define __HAVE_ARCH_STRCMP	/* arch function */
 #define __HAVE_ARCH_STRCPY	/* inline & arch function */
@@ -31,17 +34,17 @@
 #define __HAVE_ARCH_STRSTR	/* arch function */
 
 /* Prototypes for non-inlined arch strings functions. */
-extern int memcmp(const void *, const void *, size_t);
-extern void *memcpy(void *, const void *, size_t);
-extern void *memset(void *, int, size_t);
-extern void *memmove(void *, const void *, size_t);
-extern int strcmp(const char *,const char *);
-extern size_t strlcat(char *, const char *, size_t);
-extern size_t strlcpy(char *, const char *, size_t);
-extern char *strncat(char *, const char *, size_t);
-extern char *strncpy(char *, const char *, size_t);
-extern char *strrchr(const char *, int);
-extern char *strstr(const char *, const char *);
+int memcmp(const void *s1, const void *s2, size_t n);
+void *memcpy(void *dest, const void *src, size_t n);
+void *memset(void *s, int c, size_t n);
+void *memmove(void *dest, const void *src, size_t n);
+int strcmp(const char *s1, const char *s2);
+size_t strlcat(char *dest, const char *src, size_t n);
+size_t strlcpy(char *dest, const char *src, size_t size);
+char *strncat(char *dest, const char *src, size_t n);
+char *strncpy(char *dest, const char *src, size_t n);
+char *strrchr(const char *s, int c);
+char *strstr(const char *s1, const char *s2);
 
 #undef __HAVE_ARCH_STRCHR
 #undef __HAVE_ARCH_STRNCHR
@@ -50,7 +53,26 @@ extern char *strstr(const char *, const char *);
 #undef __HAVE_ARCH_STRSEP
 #undef __HAVE_ARCH_STRSPN
 
-#if !defined(IN_ARCH_STRING_C)
+void *__memset16(uint16_t *s, uint16_t v, size_t count);
+void *__memset32(uint32_t *s, uint32_t v, size_t count);
+void *__memset64(uint64_t *s, uint64_t v, size_t count);
+
+static inline void *memset16(uint16_t *s, uint16_t v, size_t count)
+{
+	return __memset16(s, v, count * sizeof(v));
+}
+
+static inline void *memset32(uint32_t *s, uint32_t v, size_t count)
+{
+	return __memset32(s, v, count * sizeof(v));
+}
+
+static inline void *memset64(uint64_t *s, uint64_t v, size_t count)
+{
+	return __memset64(s, v, count * sizeof(v));
+}
+
+#if !defined(IN_ARCH_STRING_C) && (!defined(CONFIG_FORTIFY_SOURCE) || defined(__NO_FORTIFY))
 
 static inline void *memchr(const void * s, int c, size_t n)
 {
diff --git a/arch/s390/include/asm/switch_to.h b/arch/s390/include/asm/switch_to.h
index c21fe1d57c00..ec7b476c1ac5 100644
--- a/arch/s390/include/asm/switch_to.h
+++ b/arch/s390/include/asm/switch_to.h
@@ -37,8 +37,8 @@ static inline void restore_access_regs(unsigned int *acrs)
 		save_ri_cb(prev->thread.ri_cb);				\
 		save_gs_cb(prev->thread.gs_cb);				\
 	}								\
+	update_cr_regs(next);						\
 	if (next->mm) {							\
-		update_cr_regs(next);					\
 		set_cpu_flag(CIF_FPU);					\
 		restore_access_regs(&next->thread.acrs[0]);		\
 		restore_ri_cb(next->thread.ri_cb, prev->thread.ri_cb);	\
diff --git a/arch/s390/include/asm/sysinfo.h b/arch/s390/include/asm/sysinfo.h
index 2b498e58b914..a702cb9d4269 100644
--- a/arch/s390/include/asm/sysinfo.h
+++ b/arch/s390/include/asm/sysinfo.h
@@ -156,7 +156,8 @@ static inline unsigned char topology_mnest_limit(void)
 struct topology_core {
 	unsigned char nl;
 	unsigned char reserved0[3];
-	unsigned char :6;
+	unsigned char :5;
+	unsigned char d:1;
 	unsigned char pp:2;
 	unsigned char reserved1;
 	unsigned short origin;
@@ -198,4 +199,5 @@ struct service_level {
 int register_service_level(struct service_level *);
 int unregister_service_level(struct service_level *);
 
+int sthyi_fill(void *dst, u64 *rc);
 #endif /* __ASM_S390_SYSINFO_H */
diff --git a/arch/s390/include/asm/topology.h b/arch/s390/include/asm/topology.h
index 55de4eb73604..1807229b292f 100644
--- a/arch/s390/include/asm/topology.h
+++ b/arch/s390/include/asm/topology.h
@@ -17,6 +17,7 @@ struct cpu_topology_s390 {
 	unsigned short book_id;
 	unsigned short drawer_id;
 	unsigned short node_id;
+	unsigned short dedicated : 1;
 	cpumask_t thread_mask;
 	cpumask_t core_mask;
 	cpumask_t book_mask;
@@ -35,6 +36,7 @@ extern cpumask_t cpus_with_topology;
 #define topology_book_cpumask(cpu)	  (&cpu_topology[cpu].book_mask)
 #define topology_drawer_id(cpu)		  (cpu_topology[cpu].drawer_id)
 #define topology_drawer_cpumask(cpu)	  (&cpu_topology[cpu].drawer_mask)
+#define topology_cpu_dedicated(cpu)	  (cpu_topology[cpu].dedicated)
 
 #define mc_capable() 1
 
diff --git a/arch/s390/include/asm/vdso.h b/arch/s390/include/asm/vdso.h
index bb2ce72300b0..ae6261ef97d5 100644
--- a/arch/s390/include/asm/vdso.h
+++ b/arch/s390/include/asm/vdso.h
@@ -47,6 +47,7 @@ struct vdso_per_cpu_data {
 
 extern struct vdso_data *vdso_data;
 
+void vdso_alloc_boot_cpu(struct lowcore *lowcore);
 int vdso_alloc_per_cpu(struct lowcore *lowcore);
 void vdso_free_per_cpu(struct lowcore *lowcore);
 
diff --git a/arch/s390/include/uapi/asm/kvm_virtio.h b/arch/s390/include/uapi/asm/kvm_virtio.h
deleted file mode 100644
index 73283677a132..000000000000
--- a/arch/s390/include/uapi/asm/kvm_virtio.h
+++ /dev/null
@@ -1,65 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-/*
- * definition for virtio for kvm on s390
- *
- * Copyright IBM Corp. 2008
- *
- * 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.
- *
- *    Author(s): Christian Borntraeger <borntraeger@de.ibm.com>
- */
-
-#ifndef __KVM_S390_VIRTIO_H
-#define __KVM_S390_VIRTIO_H
-
-#include <linux/types.h>
-
-struct kvm_device_desc {
-	/* The device type: console, network, disk etc.  Type 0 terminates. */
-	__u8 type;
-	/* The number of virtqueues (first in config array) */
-	__u8 num_vq;
-	/*
-	 * The number of bytes of feature bits.  Multiply by 2: one for host
-	 * features and one for guest acknowledgements.
-	 */
-	__u8 feature_len;
-	/* The number of bytes of the config array after virtqueues. */
-	__u8 config_len;
-	/* A status byte, written by the Guest. */
-	__u8 status;
-	__u8 config[0];
-};
-
-/*
- * This is how we expect the device configuration field for a virtqueue
- * to be laid out in config space.
- */
-struct kvm_vqconfig {
-	/* The token returned with an interrupt. Set by the guest */
-	__u64 token;
-	/* The address of the virtio ring */
-	__u64 address;
-	/* The number of entries in the virtio_ring */
-	__u16 num;
-
-};
-
-#define KVM_S390_VIRTIO_NOTIFY		0
-#define KVM_S390_VIRTIO_RESET		1
-#define KVM_S390_VIRTIO_SET_STATUS	2
-
-/* The alignment to use between consumer and producer parts of vring.
- * This is pagesize for historical reasons. */
-#define KVM_S390_VIRTIO_RING_ALIGN	4096
-
-
-/* These values are supposed to be in ext_params on an interrupt */
-#define VIRTIO_PARAM_MASK		0xff
-#define VIRTIO_PARAM_VRING_INTERRUPT	0x0
-#define VIRTIO_PARAM_CONFIG_CHANGED	0x1
-#define VIRTIO_PARAM_DEV_ADD		0x2
-
-#endif
diff --git a/arch/s390/include/uapi/asm/sthyi.h b/arch/s390/include/uapi/asm/sthyi.h
new file mode 100644
index 000000000000..ec113db4eb7e
--- /dev/null
+++ b/arch/s390/include/uapi/asm/sthyi.h
@@ -0,0 +1,6 @@
+#ifndef _UAPI_ASM_STHYI_H
+#define _UAPI_ASM_STHYI_H
+
+#define STHYI_FC_CP_IFL_CAP	0
+
+#endif /* _UAPI_ASM_STHYI_H */
diff --git a/arch/s390/include/uapi/asm/unistd.h b/arch/s390/include/uapi/asm/unistd.h
index b52bce8ee941..725120939051 100644
--- a/arch/s390/include/uapi/asm/unistd.h
+++ b/arch/s390/include/uapi/asm/unistd.h
@@ -316,7 +316,8 @@
 #define __NR_pwritev2		377
 #define __NR_s390_guarded_storage	378
 #define __NR_statx		379
-#define NR_syscalls 380
+#define __NR_s390_sthyi		380
+#define NR_syscalls 381
 
 /* 
  * There are some system calls that are not present on 64 bit, some