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

Pull s390 updates from Martin Schwidefsky:
 "The main new feature is machine support for System zEC12 including
  transactional memory, runtime instrumentation, support for scm block
  devices via eadm subchannels, and support for CEX4 crypto cards.

  In addition there are some nice improvements: bpf jit compiler, arch
  backend for cmpxchg_double, relative exception table entries, dasd
  partition detection independent from the dasd driver ioctls, and cpu
  cache information in /proc/cpuinfo and /sys/device/cpu.

  And last but not least a series of cleanup patches from Heiko."

Fix up trivial add-add conflict in arch/s390/Kconfig due to commit
b952741c8079 ("cputime: Generalize CONFIG_VIRT_CPU_ACCOUNTING")

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (76 commits)
  s390: update defconfig
  s390/jump label,nss: let shared kernel support depend on !JUMP_LABEL
  s390/disassembler: fix decoding of risblg instruction
  s390/bpf,jit: add support for BPF_S_ANC_ALU_XOR_X instruction
  s390/traps: move call to print_modules() out of show_regs()
  s390/mm: mark free_initrd_mem() as __init
  s390/dasd: check count address during online setting
  drivers/s390/char/monreader.c: fix error return code
  s390/cmpxchg,percpu: implement cmpxchg_double()
  s390/percpu: implement this_cpu_add_return()
  s390/percpu: implement this_cpu_xchg()
  s390/kexec: remove CONFIG_KEXEC
  s390/irq: use designated initializers for irq class array
  s390: add uninitialized_var() to suppress false positive compiler warnings
  s390/crashdump: move fill_cpu_elf_notes() prototype to header file
  s390/process: add missing header include
  s390/ptrace: add missing ifdef
  s390/ipl,decrompressor: disable branch profiling
  s390/perf_events: compile only for CONFIG_64BIT
  s390/tape: remove even more tape block leftovers
  ...

1 files changed, 222 insertions, 196 deletions

diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index f5ab543396da..f9acddd9ace3 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -52,6 +52,12 @@ config PGSTE
 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
 	def_bool y
 
+config KEXEC
+	def_bool y
+
+config AUDIT_ARCH
+	def_bool y
+
 config S390
 	def_bool y
 	select USE_GENERIC_SMP_HELPERS if SMP
@@ -81,11 +87,13 @@ config S390
 	select HAVE_KERNEL_XZ
 	select HAVE_ARCH_MUTEX_CPU_RELAX
 	select HAVE_ARCH_JUMP_LABEL if !MARCH_G5
+	select HAVE_BPF_JIT if 64BIT && PACK_STACK
 	select ARCH_SAVE_PAGE_KEYS if HIBERNATION
 	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 	select HAVE_MEMBLOCK
 	select HAVE_MEMBLOCK_NODE_MAP
 	select HAVE_CMPXCHG_LOCAL
+	select HAVE_CMPXCHG_DOUBLE
 	select HAVE_VIRT_CPU_ACCOUNTING
 	select VIRT_CPU_ACCOUNTING
 	select ARCH_DISCARD_MEMBLOCK
@@ -132,9 +140,79 @@ source "init/Kconfig"
 
 source "kernel/Kconfig.freezer"
 
-menu "Base setup"
+menu "Processor type and features"
+
+config HAVE_MARCH_Z900_FEATURES
+	def_bool n
+
+config HAVE_MARCH_Z990_FEATURES
+	def_bool n
+	select HAVE_MARCH_Z900_FEATURES
+
+config HAVE_MARCH_Z9_109_FEATURES
+	def_bool n
+	select HAVE_MARCH_Z990_FEATURES
+
+config HAVE_MARCH_Z10_FEATURES
+	def_bool n
+	select HAVE_MARCH_Z9_109_FEATURES
+
+config HAVE_MARCH_Z196_FEATURES
+	def_bool n
+	select HAVE_MARCH_Z10_FEATURES
+
+choice
+	prompt "Processor type"
+	default MARCH_G5
+
+config MARCH_G5
+	bool "System/390 model G5 and G6"
+	depends on !64BIT
+	help
+	  Select this to build a 31 bit kernel that works
+	  on all ESA/390 and z/Architecture machines.
 
-comment "Processor type and features"
+config MARCH_Z900
+	bool "IBM zSeries model z800 and z900"
+	select HAVE_MARCH_Z900_FEATURES if 64BIT
+	help
+	  Select this to enable optimizations for model z800/z900 (2064 and
+	  2066 series). This will enable some optimizations that are not
+	  available on older ESA/390 (31 Bit) only CPUs.
+
+config MARCH_Z990
+	bool "IBM zSeries model z890 and z990"
+	select HAVE_MARCH_Z990_FEATURES if 64BIT
+	help
+	  Select this to enable optimizations for model z890/z990 (2084 and
+	  2086 series). The kernel will be slightly faster but will not work
+	  on older machines.
+
+config MARCH_Z9_109
+	bool "IBM System z9"
+	select HAVE_MARCH_Z9_109_FEATURES if 64BIT
+	help
+	  Select this to enable optimizations for IBM System z9 (2094 and
+	  2096 series). The kernel will be slightly faster but will not work
+	  on older machines.
+
+config MARCH_Z10
+	bool "IBM System z10"
+	select HAVE_MARCH_Z10_FEATURES if 64BIT
+	help
+	  Select this to enable optimizations for IBM System z10 (2097 and
+	  2098 series). The kernel will be slightly faster but will not work
+	  on older machines.
+
+config MARCH_Z196
+	bool "IBM zEnterprise 114 and 196"
+	select HAVE_MARCH_Z196_FEATURES if 64BIT
+	help
+	  Select this to enable optimizations for IBM zEnterprise 114 and 196
+	  (2818 and 2817 series). The kernel will be slightly faster but will
+	  not work on older machines.
+
+endchoice
 
 config 64BIT
 	def_bool y
@@ -146,6 +224,24 @@ config 64BIT
 config 32BIT
 	def_bool y if !64BIT
 
+config COMPAT
+	def_bool y
+	prompt "Kernel support for 31 bit emulation"
+	depends on 64BIT
+	select COMPAT_BINFMT_ELF if BINFMT_ELF
+	select ARCH_WANT_OLD_COMPAT_IPC
+	help
+	  Select this option if you want to enable your system kernel to
+	  handle system-calls from ELF binaries for 31 bit ESA.  This option
+	  (and some other stuff like libraries and such) is needed for
+	  executing 31 bit applications.  It is safe to say "Y".
+
+config SYSVIPC_COMPAT
+	def_bool y if COMPAT && SYSVIPC
+
+config KEYS_COMPAT
+	def_bool y if COMPAT && KEYS
+
 config SMP
 	def_bool y
 	prompt "Symmetric multi-processing support"
@@ -201,6 +297,8 @@ config SCHED_BOOK
 	  Book scheduler support improves the CPU scheduler's decision making
 	  when dealing with machines that have several books.
 
+source kernel/Kconfig.preempt
+
 config MATHEMU
 	def_bool y
 	prompt "IEEE FPU emulation"
@@ -210,100 +308,35 @@ config MATHEMU
 	  on older ESA/390 machines. Say Y unless you know your machine doesn't
 	  need this.
 
-config COMPAT
-	def_bool y
-	prompt "Kernel support for 31 bit emulation"
-	depends on 64BIT
-	select COMPAT_BINFMT_ELF if BINFMT_ELF
-	select ARCH_WANT_OLD_COMPAT_IPC
-	help
-	  Select this option if you want to enable your system kernel to
-	  handle system-calls from ELF binaries for 31 bit ESA.  This option
-	  (and some other stuff like libraries and such) is needed for
-	  executing 31 bit applications.  It is safe to say "Y".
+source kernel/Kconfig.hz
 
-config SYSVIPC_COMPAT
-	def_bool y if COMPAT && SYSVIPC
+endmenu
 
-config KEYS_COMPAT
-	def_bool y if COMPAT && KEYS
+menu "Memory setup"
 
-config AUDIT_ARCH
+config ARCH_SPARSEMEM_ENABLE
 	def_bool y
+	select SPARSEMEM_VMEMMAP_ENABLE
+	select SPARSEMEM_VMEMMAP
+	select SPARSEMEM_STATIC if !64BIT
 
-config HAVE_MARCH_Z900_FEATURES
-	def_bool n
-
-config HAVE_MARCH_Z990_FEATURES
-	def_bool n
-	select HAVE_MARCH_Z900_FEATURES
-
-config HAVE_MARCH_Z9_109_FEATURES
-	def_bool n
-	select HAVE_MARCH_Z990_FEATURES
-
-config HAVE_MARCH_Z10_FEATURES
-	def_bool n
-	select HAVE_MARCH_Z9_109_FEATURES
-
-config HAVE_MARCH_Z196_FEATURES
-	def_bool n
-	select HAVE_MARCH_Z10_FEATURES
-
-comment "Code generation options"
-
-choice
-	prompt "Processor type"
-	default MARCH_G5
-
-config MARCH_G5
-	bool "System/390 model G5 and G6"
-	depends on !64BIT
-	help
-	  Select this to build a 31 bit kernel that works
-	  on all ESA/390 and z/Architecture machines.
-
-config MARCH_Z900
-	bool "IBM zSeries model z800 and z900"
-	select HAVE_MARCH_Z900_FEATURES if 64BIT
-	help
-	  Select this to enable optimizations for model z800/z900 (2064 and
-	  2066 series). This will enable some optimizations that are not
-	  available on older ESA/390 (31 Bit) only CPUs.
+config ARCH_SPARSEMEM_DEFAULT
+	def_bool y
 
-config MARCH_Z990
-	bool "IBM zSeries model z890 and z990"
-	select HAVE_MARCH_Z990_FEATURES if 64BIT
-	help
-	  Select this to enable optimizations for model z890/z990 (2084 and
-	  2086 series). The kernel will be slightly faster but will not work
-	  on older machines.
+config ARCH_SELECT_MEMORY_MODEL
+	def_bool y
 
-config MARCH_Z9_109
-	bool "IBM System z9"
-	select HAVE_MARCH_Z9_109_FEATURES if 64BIT
-	help
-	  Select this to enable optimizations for IBM System z9 (2094 and
-	  2096 series). The kernel will be slightly faster but will not work
-	  on older machines.
+config ARCH_ENABLE_MEMORY_HOTPLUG
+	def_bool y if SPARSEMEM
 
-config MARCH_Z10
-	bool "IBM System z10"
-	select HAVE_MARCH_Z10_FEATURES if 64BIT
-	help
-	  Select this to enable optimizations for IBM System z10 (2097 and
-	  2098 series). The kernel will be slightly faster but will not work
-	  on older machines.
+config ARCH_ENABLE_MEMORY_HOTREMOVE
+	def_bool y
 
-config MARCH_Z196
-	bool "IBM zEnterprise 114 and 196"
-	select HAVE_MARCH_Z196_FEATURES if 64BIT
-	help
-	  Select this to enable optimizations for IBM zEnterprise 114 and 196
-	  (2818 and 2817 series). The kernel will be slightly faster but will
-	  not work on older machines.
+config FORCE_MAX_ZONEORDER
+	int
+	default "9"
 
-endchoice
+source "mm/Kconfig"
 
 config PACK_STACK
 	def_bool y
@@ -367,34 +400,9 @@ config WARN_DYNAMIC_STACK
 
 	  Say N if you are unsure.
 
-comment "Kernel preemption"
-
-source "kernel/Kconfig.preempt"
-
-config ARCH_SPARSEMEM_ENABLE
-	def_bool y
-	select SPARSEMEM_VMEMMAP_ENABLE
-	select SPARSEMEM_VMEMMAP
-	select SPARSEMEM_STATIC if !64BIT
-
-config ARCH_SPARSEMEM_DEFAULT
-	def_bool y
-
-config ARCH_SELECT_MEMORY_MODEL
-	def_bool y
-
-config ARCH_ENABLE_MEMORY_HOTPLUG
-	def_bool y if SPARSEMEM
-
-config ARCH_ENABLE_MEMORY_HOTREMOVE
-	def_bool y
-
-config ARCH_HIBERNATION_POSSIBLE
-	def_bool y if 64BIT
-
-source "mm/Kconfig"
+endmenu
 
-comment "I/O subsystem configuration"
+menu "I/O subsystem"
 
 config QDIO
 	def_tristate y
@@ -425,13 +433,102 @@ config CHSC_SCH
 
 	  If unsure, say N.
 
-comment "Misc"
+config SCM_BUS
+	def_bool y
+	depends on 64BIT
+	prompt "SCM bus driver"
+	help
+	  Bus driver for Storage Class Memory.
+
+config EADM_SCH
+	def_tristate m
+	prompt "Support for EADM subchannels"
+	depends on SCM_BUS
+	help
+	  This driver allows usage of EADM subchannels. EADM subchannels act
+	  as a communication vehicle for SCM increments.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called eadm_sch.
+
+endmenu
+
+menu "Dump support"
+
+config CRASH_DUMP
+	bool "kernel crash dumps"
+	depends on 64BIT && SMP
+	select KEXEC
+	help
+	  Generate crash dump after being started by kexec.
+	  Crash dump kernels are loaded in the main kernel with kexec-tools
+	  into a specially reserved region and then later executed after
+	  a crash by kdump/kexec.
+	  For more details see Documentation/kdump/kdump.txt
+
+config ZFCPDUMP
+	def_bool n
+	prompt "zfcpdump support"
+	select SMP
+	help
+	  Select this option if you want to build an zfcpdump enabled kernel.
+	  Refer to <file:Documentation/s390/zfcpdump.txt> for more details on this.
+
+endmenu
+
+menu "Executable file formats / Emulations"
 
 source "fs/Kconfig.binfmt"
 
-config FORCE_MAX_ZONEORDER
-	int
-	default "9"
+config SECCOMP
+	def_bool y
+	prompt "Enable seccomp to safely compute untrusted bytecode"
+	depends on PROC_FS
+	help
+	  This kernel feature is useful for number crunching applications
+	  that may need to compute untrusted bytecode during their
+	  execution. By using pipes or other transports made available to
+	  the process as file descriptors supporting the read/write
+	  syscalls, it's possible to isolate those applications in
+	  their own address space using seccomp. Once seccomp is
+	  enabled via /proc/<pid>/seccomp, it cannot be disabled
+	  and the task is only allowed to execute a few safe syscalls
+	  defined by each seccomp mode.
+
+	  If unsure, say Y.
+
+endmenu
+
+menu "Power Management"
+
+config ARCH_HIBERNATION_POSSIBLE
+	def_bool y if 64BIT
+
+source "kernel/power/Kconfig"
+
+endmenu
+
+source "net/Kconfig"
+
+config PCMCIA
+	def_bool n
+
+config CCW
+	def_bool y
+
+source "drivers/Kconfig"
+
+source "fs/Kconfig"
+
+source "arch/s390/Kconfig.debug"
+
+source "security/Kconfig"
+
+source "crypto/Kconfig"
+
+source "lib/Kconfig"
+
+menu "Virtualization"
 
 config PFAULT
 	def_bool y
@@ -447,8 +544,8 @@ config PFAULT
 	  this option.
 
 config SHARED_KERNEL
-	def_bool y
-	prompt "VM shared kernel support"
+	bool "VM shared kernel support"
+	depends on !JUMP_LABEL
 	help
 	  Select this option, if you want to share the text segment of the
 	  Linux kernel between different VM guests. This reduces memory
@@ -543,8 +640,6 @@ config APPLDATA_NET_SUM
 	  This can also be compiled as a module, which will be called
 	  appldata_net_sum.o.
 
-source kernel/Kconfig.hz
-
 config S390_HYPFS_FS
 	def_bool y
 	prompt "s390 hypervisor file system support"
@@ -553,90 +648,21 @@ config S390_HYPFS_FS
 	  This is a virtual file system intended to provide accounting
 	  information in an s390 hypervisor environment.
 
-config KEXEC
-	def_bool n
-	prompt "kexec system call"
-	help
-	  kexec is a system call that implements the ability to shutdown your
-	  current kernel, and to start another kernel.  It is like a reboot
-	  but is independent of hardware/microcode support.
-
-config CRASH_DUMP
-	bool "kernel crash dumps"
-	depends on 64BIT && SMP
-	select KEXEC
-	help
-	  Generate crash dump after being started by kexec.
-	  Crash dump kernels are loaded in the main kernel with kexec-tools
-	  into a specially reserved region and then later executed after
-	  a crash by kdump/kexec.
-	  For more details see Documentation/kdump/kdump.txt
-
-config ZFCPDUMP
-	def_bool n
-	prompt "zfcpdump support"
-	select SMP
-	help
-	  Select this option if you want to build an zfcpdump enabled kernel.
-	  Refer to <file:Documentation/s390/zfcpdump.txt> for more details on this.
+source "arch/s390/kvm/Kconfig"
 
 config S390_GUEST
 	def_bool y
-	prompt "s390 guest support for KVM (EXPERIMENTAL)"
+	prompt "s390 support for virtio devices (EXPERIMENTAL)"
 	depends on 64BIT && EXPERIMENTAL
 	select VIRTUALIZATION
 	select VIRTIO
 	select VIRTIO_RING
 	select VIRTIO_CONSOLE
 	help
-	  Select this option if you want to run the kernel as a guest under
-	  the KVM hypervisor. This will add detection for KVM as well  as a
-	  virtio transport. If KVM is detected, the virtio console will be
-	  the default console.
-
-config SECCOMP
-	def_bool y
-	prompt "Enable seccomp to safely compute untrusted bytecode"
-	depends on PROC_FS
-	help
-	  This kernel feature is useful for number crunching applications
-	  that may need to compute untrusted bytecode during their
-	  execution. By using pipes or other transports made available to
-	  the process as file descriptors supporting the read/write
-	  syscalls, it's possible to isolate those applications in
-	  their own address space using seccomp. Once seccomp is
-	  enabled via /proc/<pid>/seccomp, it cannot be disabled
-	  and the task is only allowed to execute a few safe syscalls
-	  defined by each seccomp mode.
-
-	  If unsure, say Y.
-
-endmenu
+	  Enabling this option adds support for virtio based paravirtual device
+	  drivers on s390.
 
-menu "Power Management"
-
-source "kernel/power/Kconfig"
+	  Select this option if you want to run the kernel as a guest under
+	  the KVM hypervisor.
 
 endmenu
-
-source "net/Kconfig"
-
-config PCMCIA
-	def_bool n
-
-config CCW
-	def_bool y
-
-source "drivers/Kconfig"
-
-source "fs/Kconfig"
-
-source "arch/s390/Kconfig.debug"
-
-source "security/Kconfig"
-
-source "crypto/Kconfig"
-
-source "lib/Kconfig"
-
-source "arch/s390/kvm/Kconfig"