Linux-libre 4.7.1-gnupck-4.7.1-gnu

12 files changed, 490 insertions, 32 deletions

diff --git a/arch/s390/include/asm/cpacf.h b/arch/s390/include/asm/cpacf.h
new file mode 100644
index 000000000..1a82cf26e
--- /dev/null
+++ b/arch/s390/include/asm/cpacf.h
@@ -0,0 +1,410 @@
+/*
+ * CP Assist for Cryptographic Functions (CPACF)
+ *
+ * Copyright IBM Corp. 2003, 2016
+ * Author(s): Thomas Spatzier
+ *	      Jan Glauber
+ *	      Harald Freudenberger (freude@de.ibm.com)
+ *	      Martin Schwidefsky <schwidefsky@de.ibm.com>
+ */
+#ifndef _ASM_S390_CPACF_H
+#define _ASM_S390_CPACF_H
+
+#include <asm/facility.h>
+
+/*
+ * Instruction opcodes for the CPACF instructions
+ */
+#define CPACF_KMAC		0xb91e		/* MSA	*/
+#define CPACF_KM		0xb92e		/* MSA	*/
+#define CPACF_KMC		0xb92f		/* MSA	*/
+#define CPACF_KIMD		0xb93e		/* MSA	*/
+#define CPACF_KLMD		0xb93f		/* MSA	*/
+#define CPACF_PCC		0xb92c		/* MSA4 */
+#define CPACF_KMCTR		0xb92d		/* MSA4 */
+#define CPACF_PPNO		0xb93c		/* MSA5 */
+
+/*
+ * Function codes for the KM (CIPHER MESSAGE)
+ * instruction (0x80 is the decipher modifier bit)
+ */
+#define CPACF_KM_QUERY		0x00
+#define CPACF_KM_DEA_ENC	0x01
+#define CPACF_KM_DEA_DEC	0x81
+#define CPACF_KM_TDEA_128_ENC	0x02
+#define CPACF_KM_TDEA_128_DEC	0x82
+#define CPACF_KM_TDEA_192_ENC	0x03
+#define CPACF_KM_TDEA_192_DEC	0x83
+#define CPACF_KM_AES_128_ENC	0x12
+#define CPACF_KM_AES_128_DEC	0x92
+#define CPACF_KM_AES_192_ENC	0x13
+#define CPACF_KM_AES_192_DEC	0x93
+#define CPACF_KM_AES_256_ENC	0x14
+#define CPACF_KM_AES_256_DEC	0x94
+#define CPACF_KM_XTS_128_ENC	0x32
+#define CPACF_KM_XTS_128_DEC	0xb2
+#define CPACF_KM_XTS_256_ENC	0x34
+#define CPACF_KM_XTS_256_DEC	0xb4
+
+/*
+ * Function codes for the KMC (CIPHER MESSAGE WITH CHAINING)
+ * instruction (0x80 is the decipher modifier bit)
+ */
+#define CPACF_KMC_QUERY		0x00
+#define CPACF_KMC_DEA_ENC	0x01
+#define CPACF_KMC_DEA_DEC	0x81
+#define CPACF_KMC_TDEA_128_ENC	0x02
+#define CPACF_KMC_TDEA_128_DEC	0x82
+#define CPACF_KMC_TDEA_192_ENC	0x03
+#define CPACF_KMC_TDEA_192_DEC	0x83
+#define CPACF_KMC_AES_128_ENC	0x12
+#define CPACF_KMC_AES_128_DEC	0x92
+#define CPACF_KMC_AES_192_ENC	0x13
+#define CPACF_KMC_AES_192_DEC	0x93
+#define CPACF_KMC_AES_256_ENC	0x14
+#define CPACF_KMC_AES_256_DEC	0x94
+#define CPACF_KMC_PRNG		0x43
+
+/*
+ * Function codes for the KMCTR (CIPHER MESSAGE WITH COUNTER)
+ * instruction (0x80 is the decipher modifier bit)
+ */
+#define CPACF_KMCTR_QUERY	 0x00
+#define CPACF_KMCTR_DEA_ENC	 0x01
+#define CPACF_KMCTR_DEA_DEC	 0x81
+#define CPACF_KMCTR_TDEA_128_ENC 0x02
+#define CPACF_KMCTR_TDEA_128_DEC 0x82
+#define CPACF_KMCTR_TDEA_192_ENC 0x03
+#define CPACF_KMCTR_TDEA_192_DEC 0x83
+#define CPACF_KMCTR_AES_128_ENC	 0x12
+#define CPACF_KMCTR_AES_128_DEC	 0x92
+#define CPACF_KMCTR_AES_192_ENC	 0x13
+#define CPACF_KMCTR_AES_192_DEC	 0x93
+#define CPACF_KMCTR_AES_256_ENC	 0x14
+#define CPACF_KMCTR_AES_256_DEC	 0x94
+
+/*
+ * Function codes for the KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST)
+ * instruction (0x80 is the decipher modifier bit)
+ */
+#define CPACF_KIMD_QUERY	0x00
+#define CPACF_KIMD_SHA_1	0x01
+#define CPACF_KIMD_SHA_256	0x02
+#define CPACF_KIMD_SHA_512	0x03
+#define CPACF_KIMD_GHASH	0x41
+
+/*
+ * Function codes for the KLMD (COMPUTE LAST MESSAGE DIGEST)
+ * instruction (0x80 is the decipher modifier bit)
+ */
+#define CPACF_KLMD_QUERY	0x00
+#define CPACF_KLMD_SHA_1	0x01
+#define CPACF_KLMD_SHA_256	0x02
+#define CPACF_KLMD_SHA_512	0x03
+
+/*
+ * function codes for the KMAC (COMPUTE MESSAGE AUTHENTICATION CODE)
+ * instruction (0x80 is the decipher modifier bit)
+ */
+#define CPACF_KMAC_QUERY	0x00
+#define CPACF_KMAC_DEA		0x01
+#define CPACF_KMAC_TDEA_128	0x02
+#define CPACF_KMAC_TDEA_192	0x03
+
+/*
+ * Function codes for the PPNO (PERFORM PSEUDORANDOM NUMBER OPERATION)
+ * instruction (0x80 is the decipher modifier bit)
+ */
+#define CPACF_PPNO_QUERY		0x00
+#define CPACF_PPNO_SHA512_DRNG_GEN	0x03
+#define CPACF_PPNO_SHA512_DRNG_SEED	0x83
+
+/**
+ * cpacf_query() - check if a specific CPACF function is available
+ * @opcode: the opcode of the crypto instruction
+ * @func: the function code to test for
+ *
+ * Executes the query function for the given crypto instruction @opcode
+ * and checks if @func is available
+ *
+ * Returns 1 if @func is available for @opcode, 0 otherwise
+ */
+static inline void __cpacf_query(unsigned int opcode, unsigned char *status)
+{
+	typedef struct { unsigned char _[16]; } status_type;
+	register unsigned long r0 asm("0") = 0;	/* query function */
+	register unsigned long r1 asm("1") = (unsigned long) status;
+
+	asm volatile(
+		/* Parameter registers are ignored, but may not be 0 */
+		"0:	.insn	rrf,%[opc] << 16,2,2,2,0\n"
+		"	brc	1,0b\n"	/* handle partial completion */
+		: "=m" (*(status_type *) status)
+		: [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (opcode)
+		: "cc");
+}
+
+static inline int cpacf_query(unsigned int opcode, unsigned int func)
+{
+	unsigned char status[16];
+
+	switch (opcode) {
+	case CPACF_KMAC:
+	case CPACF_KM:
+	case CPACF_KMC:
+	case CPACF_KIMD:
+	case CPACF_KLMD:
+		if (!test_facility(17))	/* check for MSA */
+			return 0;
+		break;
+	case CPACF_PCC:
+	case CPACF_KMCTR:
+		if (!test_facility(77))	/* check for MSA4 */
+			return 0;
+		break;
+	case CPACF_PPNO:
+		if (!test_facility(57))	/* check for MSA5 */
+			return 0;
+		break;
+	default:
+		BUG();
+	}
+	__cpacf_query(opcode, status);
+	return (status[func >> 3] & (0x80 >> (func & 7))) != 0;
+}
+
+/**
+ * cpacf_km() - executes the KM (CIPHER MESSAGE) instruction
+ * @func: the function code passed to KM; see CPACF_KM_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
+ *
+ * Returns 0 for the query func, number of processed bytes for
+ * encryption/decryption funcs
+ */
+static inline int cpacf_km(long func, void *param,
+			   u8 *dest, const u8 *src, long src_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) dest;
+
+	asm volatile(
+		"0:	.insn	rre,%[opc] << 16,%[dst],%[src]\n"
+		"	brc	1,0b\n" /* handle partial completion */
+		: [src] "+a" (r2), [len] "+d" (r3), [dst] "+a" (r4)
+		: [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KM)
+		: "cc", "memory");
+
+	return src_len - r3;
+}
+
+/**
+ * cpacf_kmc() - executes the KMC (CIPHER MESSAGE WITH CHAINING) instruction
+ * @func: the function code passed to KM; see CPACF_KMC_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
+ *
+ * Returns 0 for the query func, number of processed bytes for
+ * encryption/decryption funcs
+ */
+static inline int cpacf_kmc(long func, void *param,
+			    u8 *dest, const u8 *src, long src_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) dest;
+
+	asm volatile(
+		"0:	.insn	rre,%[opc] << 16,%[dst],%[src]\n"
+		"	brc	1,0b\n" /* handle partial completion */
+		: [src] "+a" (r2), [len] "+d" (r3), [dst] "+a" (r4)
+		: [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMC)
+		: "cc", "memory");
+
+	return src_len - r3;
+}
+
+/**
+ * cpacf_kimd() - executes the KIMD (COMPUTE INTERMEDIATE MESSAGE DIGEST)
+ *		  instruction
+ * @func: the function code passed to KM; see CPACF_KIMD_xxx defines
+ * @param: address of parameter block; see POP for details on each func
+ * @src: address of source memory area
+ * @src_len: length of src operand in bytes
+ *
+ * Returns 0 for the query func, number of processed bytes for digest funcs
+ */
+static inline int cpacf_kimd(long func, void *param,
+			     const u8 *src, long src_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;
+
+	asm volatile(
+		"0:	.insn	rre,%[opc] << 16,0,%[src]\n"
+		"	brc	1,0b\n" /* handle partial completion */
+		: [src] "+a" (r2), [len] "+d" (r3)
+		: [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KIMD)
+		: "cc", "memory");
+
+	return src_len - r3;
+}
+
+/**
+ * cpacf_klmd() - executes the KLMD (COMPUTE LAST MESSAGE DIGEST) instruction
+ * @func: the function code passed to KM; see CPACF_KLMD_xxx defines
+ * @param: address of parameter block; see POP for details on each func
+ * @src: address of source memory area
+ * @src_len: length of src operand in bytes
+ *
+ * Returns 0 for the query func, number of processed bytes for digest funcs
+ */
+static inline int cpacf_klmd(long func, void *param,
+			     const u8 *src, long src_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;
+
+	asm volatile(
+		"0:	.insn	rre,%[opc] << 16,0,%[src]\n"
+		"	brc	1,0b\n" /* handle partial completion */
+		: [src] "+a" (r2), [len] "+d" (r3)
+		: [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KLMD)
+		: "cc", "memory");
+
+	return src_len - r3;
+}
+
+/**
+ * cpacf_kmac() - executes the KMAC (COMPUTE MESSAGE AUTHENTICATION CODE)
+ *		  instruction
+ * @func: the function code passed to KM; see CPACF_KMAC_xxx defines
+ * @param: address of parameter block; see POP for details on each func
+ * @src: address of source memory area
+ * @src_len: length of src operand in bytes
+ *
+ * Returns 0 for the query func, number of processed bytes for digest funcs
+ */
+static inline int cpacf_kmac(long func, void *param,
+			     const u8 *src, long src_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;
+
+	asm volatile(
+		"0:	.insn	rre,%[opc] << 16,0,%[src]\n"
+		"	brc	1,0b\n" /* handle partial completion */
+		: [src] "+a" (r2), [len] "+d" (r3)
+		: [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMAC)
+		: "cc", "memory");
+
+	return src_len - r3;
+}
+
+/**
+ * cpacf_kmctr() - executes the KMCTR (CIPHER MESSAGE WITH COUNTER) instruction
+ * @func: the function code passed to KMCTR; see CPACF_KMCTR_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
+ * @counter: address of counter value
+ *
+ * Returns 0 for the query func, number of processed bytes for
+ * encryption/decryption funcs
+ */
+static inline int cpacf_kmctr(long func, void *param, u8 *dest,
+			      const u8 *src, long src_len, u8 *counter)
+{
+	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) dest;
+	register unsigned long r6 asm("6") = (unsigned long) counter;
+
+	asm volatile(
+		"0:	.insn	rrf,%[opc] << 16,%[dst],%[src],%[ctr],0\n"
+		"	brc	1,0b\n" /* handle partial completion */
+		: [src] "+a" (r2), [len] "+d" (r3),
+		  [dst] "+a" (r4), [ctr] "+a" (r6)
+		: [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMCTR)
+		: "cc", "memory");
+
+	return src_len - r3;
+}
+
+/**
+ * cpacf_ppno() - executes the PPNO (PERFORM PSEUDORANDOM NUMBER OPERATION)
+ *		  instruction
+ * @func: the function code passed to PPNO; see CPACF_PPNO_xxx defines
+ * @param: address of parameter block; see POP for details on each func
+ * @dest: address of destination memory area
+ * @dest_len: size of destination memory area in bytes
+ * @seed: address of seed data
+ * @seed_len: size of seed data in bytes
+ *
+ * Returns 0 for the query func, number of random bytes stored in
+ * dest buffer for generate function
+ */
+static inline int cpacf_ppno(long func, void *param,
+			     u8 *dest, long dest_len,
+			     const u8 *seed, long seed_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) dest;
+	register unsigned long r3 asm("3") = (unsigned long) dest_len;
+	register unsigned long r4 asm("4") = (unsigned long) seed;
+	register unsigned long r5 asm("5") = (unsigned long) seed_len;
+
+	asm volatile (
+		"0:	.insn	rre,%[opc] << 16,%[dst],%[seed]\n"
+		"	brc	1,0b\n"	  /* handle partial completion */
+		: [dst] "+a" (r2), [dlen] "+d" (r3)
+		: [fc] "d" (r0), [pba] "a" (r1),
+		  [seed] "a" (r4), [slen] "d" (r5), [opc] "i" (CPACF_PPNO)
+		: "cc", "memory");
+
+	return dest_len - r3;
+}
+
+/**
+ * cpacf_pcc() - executes the PCC (PERFORM CRYPTOGRAPHIC COMPUTATION)
+ *		 instruction
+ * @func: the function code passed to PCC; see CPACF_KM_xxx defines
+ * @param: address of parameter block; see POP for details on each func
+ *
+ * Returns 0.
+ */
+static inline int cpacf_pcc(long func, void *param)
+{
+	register unsigned long r0 asm("0") = (unsigned long) func;
+	register unsigned long r1 asm("1") = (unsigned long) param;
+
+	asm volatile(
+		"0:	.insn	rre,%[opc] << 16,0,0\n" /* PCC opcode */
+		"	brc	1,0b\n" /* handle partial completion */
+		:
+		: [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_PCC)
+		: "cc", "memory");
+
+	return 0;
+}
+
+#endif	/* _ASM_S390_CPACF_H */
diff --git a/arch/s390/include/asm/fpu/types.h b/arch/s390/include/asm/fpu/types.h
index 14a8b0c14..fe937c9b6 100644
--- a/arch/s390/include/asm/fpu/types.h
+++ b/arch/s390/include/asm/fpu/types.h
@@ -11,11 +11,13 @@
 #include <asm/sigcontext.h>
 
 struct fpu {
-	__u32 fpc;			/* Floating-point control */
+	__u32 fpc;		/* Floating-point control */
+	void *regs;		/* Pointer to the current save area */
 	union {
-		void *regs;
-		freg_t *fprs;		/* Floating-point register save area */
-		__vector128 *vxrs;	/* Vector register save area */
+		/* Floating-point register save area */
+		freg_t fprs[__NUM_FPRS];
+		/* Vector register save area */
+		__vector128 vxrs[__NUM_VXRS];
 	};
 };
 
diff --git a/arch/s390/include/asm/ftrace.h b/arch/s390/include/asm/ftrace.h
index 836c56290..64053d9ac 100644
--- a/arch/s390/include/asm/ftrace.h
+++ b/arch/s390/include/asm/ftrace.h
@@ -12,7 +12,9 @@
 
 #ifndef __ASSEMBLY__
 
-#define ftrace_return_address(n) __builtin_return_address(n)
+unsigned long return_address(int depth);
+
+#define ftrace_return_address(n) return_address(n)
 
 void _mcount(void);
 void ftrace_caller(void);
diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h
index 6da41fab7..ac82e8eb9 100644
--- a/arch/s390/include/asm/kvm_host.h
+++ b/arch/s390/include/asm/kvm_host.h
@@ -38,7 +38,7 @@
  */
 #define KVM_NR_IRQCHIPS 1
 #define KVM_IRQCHIP_NUM_PINS 4096
-#define KVM_HALT_POLL_NS_DEFAULT 0
+#define KVM_HALT_POLL_NS_DEFAULT 80000
 
 /* s390-specific vcpu->requests bit members */
 #define KVM_REQ_ENABLE_IBS         8
@@ -245,8 +245,10 @@ struct kvm_vcpu_stat {
 	u32 exit_stop_request;
 	u32 exit_validity;
 	u32 exit_instruction;
+	u32 exit_pei;
 	u32 halt_successful_poll;
 	u32 halt_attempted_poll;
+	u32 halt_poll_invalid;
 	u32 halt_wakeup;
 	u32 instruction_lctl;
 	u32 instruction_lctlg;
@@ -544,10 +546,6 @@ struct kvm_vcpu_arch {
 	struct kvm_s390_local_interrupt local_int;
 	struct hrtimer    ckc_timer;
 	struct kvm_s390_pgm_info pgm;
-	union  {
-		struct cpuid	cpu_id;
-		u64		stidp_data;
-	};
 	struct gmap *gmap;
 	struct kvm_guestdbg_info_arch guestdbg;
 	unsigned long pfault_token;
@@ -605,7 +603,7 @@ struct kvm_s390_cpu_model {
 	__u64 fac_mask[S390_ARCH_FAC_LIST_SIZE_U64];
 	/* facility list requested by guest (in dma page) */
 	__u64 *fac_list;
-	struct cpuid cpu_id;
+	u64 cpuid;
 	unsigned short ibc;
 };
 
@@ -700,4 +698,6 @@ static inline void kvm_arch_flush_shadow_memslot(struct kvm *kvm,
 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
 
+void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu);
+
 #endif
diff --git a/arch/s390/include/asm/livepatch.h b/arch/s390/include/asm/livepatch.h
index d5427c78b..2c1213785 100644
--- a/arch/s390/include/asm/livepatch.h
+++ b/arch/s390/include/asm/livepatch.h
@@ -24,13 +24,6 @@ static inline int klp_check_compiler_support(void)
 	return 0;
 }
 
-static inline int klp_write_module_reloc(struct module *mod, unsigned long
-		type, unsigned long loc, unsigned long value)
-{
-	/* not supported yet */
-	return -ENOSYS;
-}
-
 static inline void klp_arch_set_pc(struct pt_regs *regs, unsigned long ip)
 {
 	regs->psw.addr = ip;
diff --git a/arch/s390/include/asm/pci.h b/arch/s390/include/asm/pci.h
index 535a46d46..0da91c4d3 100644
--- a/arch/s390/include/asm/pci.h
+++ b/arch/s390/include/asm/pci.h
@@ -31,20 +31,41 @@ int pci_proc_domain(struct pci_bus *);
 #define ZPCI_FC_BLOCKED			0x20
 #define ZPCI_FC_DMA_ENABLED		0x10
 
+#define ZPCI_FMB_DMA_COUNTER_VALID	(1 << 23)
+
+struct zpci_fmb_fmt0 {
+	u64 dma_rbytes;
+	u64 dma_wbytes;
+};
+
+struct zpci_fmb_fmt1 {
+	u64 rx_bytes;
+	u64 rx_packets;
+	u64 tx_bytes;
+	u64 tx_packets;
+};
+
+struct zpci_fmb_fmt2 {
+	u64 consumed_work_units;
+	u64 max_work_units;
+};
+
 struct zpci_fmb {
-	u32 format	:  8;
-	u32 dma_valid	:  1;
-	u32		: 23;
+	u32 format	: 8;
+	u32 fmt_ind	: 24;
 	u32 samples;
 	u64 last_update;
-	/* hardware counters */
+	/* common counters */
 	u64 ld_ops;
 	u64 st_ops;
 	u64 stb_ops;
 	u64 rpcit_ops;
-	u64 dma_rbytes;
-	u64 dma_wbytes;
-	u64 pad[2];
+	/* format specific counters */
+	union {
+		struct zpci_fmb_fmt0 fmt0;
+		struct zpci_fmb_fmt1 fmt1;
+		struct zpci_fmb_fmt2 fmt2;
+	};
 } __packed __aligned(128);
 
 enum zpci_state {
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index 2f6664558..18d2beb89 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -1223,6 +1223,7 @@ static inline int pmd_trans_huge(pmd_t pmd)
 	return pmd_val(pmd) & _SEGMENT_ENTRY_LARGE;
 }
 
+#define has_transparent_hugepage has_transparent_hugepage
 static inline int has_transparent_hugepage(void)
 {
 	return MACHINE_HAS_HPAGE ? 1 : 0;
diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h
index 18cdede1a..9d4d311d7 100644
--- a/arch/s390/include/asm/processor.h
+++ b/arch/s390/include/asm/processor.h
@@ -105,7 +105,6 @@ typedef struct {
  * Thread structure
  */
 struct thread_struct {
-	struct fpu fpu;			/* FP and VX register save area */
 	unsigned int  acrs[NUM_ACRS];
         unsigned long ksp;              /* kernel stack pointer             */
 	mm_segment_t mm_segment;
@@ -120,6 +119,11 @@ struct thread_struct {
 	/* cpu runtime instrumentation */
 	struct runtime_instr_cb *ri_cb;
 	unsigned char trap_tdb[256];	/* Transaction abort diagnose block */
+	/*
+	 * Warning: 'fpu' is dynamically-sized. It *MUST* be at
+	 * the end.
+	 */
+	struct fpu fpu;			/* FP and VX register save area */
 };
 
 /* Flag to disable transactions. */
@@ -155,10 +159,9 @@ 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,			\
+	.fpu.regs = (void *) init_task.thread.fpu.fprs,			\
 }
 
 /*
diff --git a/arch/s390/include/asm/rwsem.h b/arch/s390/include/asm/rwsem.h
index fead491df..c75e4471e 100644
--- a/arch/s390/include/asm/rwsem.h
+++ b/arch/s390/include/asm/rwsem.h
@@ -90,7 +90,7 @@ static inline int __down_read_trylock(struct rw_semaphore *sem)
 /*
  * lock for writing
  */
-static inline void __down_write_nested(struct rw_semaphore *sem, int subclass)
+static inline long ___down_write(struct rw_semaphore *sem)
 {
 	signed long old, new, tmp;
 
@@ -104,13 +104,23 @@ static inline void __down_write_nested(struct rw_semaphore *sem, int subclass)
 		: "=&d" (old), "=&d" (new), "=Q" (sem->count)
 		: "Q" (sem->count), "m" (tmp)
 		: "cc", "memory");
-	if (old != 0)
-		rwsem_down_write_failed(sem);
+
+	return old;
 }
 
 static inline void __down_write(struct rw_semaphore *sem)
 {
-	__down_write_nested(sem, 0);
+	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;
 }
 
 /*
diff --git a/arch/s390/include/asm/sclp.h b/arch/s390/include/asm/sclp.h
index bab456be9..e4f6f73af 100644
--- a/arch/s390/include/asm/sclp.h
+++ b/arch/s390/include/asm/sclp.h
@@ -69,9 +69,22 @@ struct sclp_info {
 	unsigned int max_cores;
 	unsigned long hsa_size;
 	unsigned long facilities;
+	unsigned int hmfai;
 };
 extern struct sclp_info sclp;
 
+struct zpci_report_error_header {
+	u8 version;	/* Interface version byte */
+	u8 action;	/* Action qualifier byte
+			 * 1: Deconfigure and repair action requested
+			 *	(OpenCrypto Problem Call Home)
+			 * 2: Informational Report
+			 *	(OpenCrypto Successful Diagnostics Execution)
+			 */
+	u16 length;	/* Length of Subsequent Data (up to 4K – SCLP header */
+	u8 data[0];	/* Subsequent Data passed verbatim to SCLP ET 24 */
+} __packed;
+
 int sclp_get_core_info(struct sclp_core_info *info);
 int sclp_core_configure(u8 core);
 int sclp_core_deconfigure(u8 core);
@@ -83,6 +96,7 @@ int sclp_chp_read_info(struct sclp_chp_info *info);
 void sclp_get_ipl_info(struct sclp_ipl_info *info);
 int sclp_pci_configure(u32 fid);
 int sclp_pci_deconfigure(u32 fid);
+int sclp_pci_report(struct zpci_report_error_header *report, u32 fh, u32 fid);
 int memcpy_hsa_kernel(void *dest, unsigned long src, size_t count);
 int memcpy_hsa_user(void __user *dest, unsigned long src, size_t count);
 void sclp_early_detect(void);
diff --git a/arch/s390/include/asm/sigp.h b/arch/s390/include/asm/sigp.h
index ec60cf7fa..1c8f33fca 100644
--- a/arch/s390/include/asm/sigp.h
+++ b/arch/s390/include/asm/sigp.h
@@ -27,6 +27,7 @@
 
 /* SIGP cpu status bits */
 
+#define SIGP_STATUS_INVALID_ORDER	0x00000002UL
 #define SIGP_STATUS_CHECK_STOP		0x00000010UL
 #define SIGP_STATUS_STOPPED		0x00000040UL
 #define SIGP_STATUS_EXT_CALL_PENDING	0x00000080UL
diff --git a/arch/s390/include/asm/thread_info.h b/arch/s390/include/asm/thread_info.h
index 2fffc2c27..f15c0398c 100644
--- a/arch/s390/include/asm/thread_info.h
+++ b/arch/s390/include/asm/thread_info.h
@@ -62,6 +62,7 @@ static inline struct thread_info *current_thread_info(void)
 }
 
 void arch_release_task_struct(struct task_struct *tsk);
+int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src);
 
 #define THREAD_SIZE_ORDER THREAD_ORDER