[S390] Kconfig: use common Kconfig files for s390.

Disband drivers/s390/Kconfig, use the common Kconfig files. The s390
specific config options from drivers/s390/Kconfig are moved to the
respective common Kconfig files.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

arch/s390/Kconfig

@@ -4,27 +4,23 @@
 #
 
 config MMU
-	bool
-	default y
+	def_bool y
 
 config ZONE_DMA
 	def_bool y
 	depends on 64BIT
 
 config LOCKDEP_SUPPORT
-	bool
-	default y
+	def_bool y
 
 config STACKTRACE_SUPPORT
-	bool
-	default y
+	def_bool y
 
 config RWSEM_GENERIC_SPINLOCK
 	bool
 
 config RWSEM_XCHGADD_ALGORITHM
-	bool
-	default y
+	def_bool y
 
 config ARCH_HAS_ILOG2_U32
 	bool
@@ -35,8 +31,7 @@ config ARCH_HAS_ILOG2_U64
 	default n
 
 config GENERIC_HWEIGHT
-	bool
-	default y
+	def_bool y
 
 config GENERIC_TIME
 	def_bool y
@@ -55,8 +50,7 @@ config NO_DMA
 mainmenu "Linux Kernel Configuration"
 
 config S390
-	bool
-	default y
+	def_bool y
 
 source "init/Kconfig"
 
@@ -280,6 +274,10 @@ config WARN_STACK_SIZE
 config ARCH_POPULATES_NODE_MAP
 	def_bool y
 
+comment "Kernel preemption"
+
+source "kernel/Kconfig.preempt"
+
 source "mm/Kconfig"
 
 config HOLES_IN_ZONE
@@ -320,17 +318,6 @@ config QDIO_DEBUG
 
 comment "Misc"
 
-config PREEMPT
-	bool "Preemptible Kernel"
-	help
-	  This option reduces the latency of the kernel when reacting to
-	  real-time or interactive events by allowing a low priority process to
-	  be preempted even if it is in kernel mode executing a system call.
-	  This allows applications to run more reliably even when the system is
-	  under load.
-
-	  Say N if you are unsure.
-
 config IPL
 	bool "Builtin IPL record support"
 	help
@@ -488,6 +475,8 @@ 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 NO_IDLE_HZ
 	bool "No HZ timer ticks in idle"
 	help
@@ -535,18 +524,12 @@ endmenu
 source "net/Kconfig"
 
 config PCMCIA
-	bool
-	default n
-
-source "drivers/base/Kconfig"
+	def_bool n
 
-source "drivers/connector/Kconfig"
-
-source "drivers/scsi/Kconfig"
-
-source "drivers/s390/Kconfig"
+config CCW
+	def_bool y
 
-source "drivers/net/Kconfig"
+source "drivers/Kconfig"
 
 source "fs/Kconfig"
 

drivers/block/Kconfig

@@ -444,8 +444,6 @@ config CDROM_PKTCDVD_WCACHE
 	  this option is dangerous unless the CD-RW media is known good, as we
 	  don't do deferred write error handling yet.
 
-source "drivers/s390/block/Kconfig"
-
 config ATA_OVER_ETH
 	tristate "ATA over Ethernet support"
 	depends on NET
@@ -453,6 +451,8 @@ config ATA_OVER_ETH
 	This driver provides Support for ATA over Ethernet block
 	devices like the Coraid EtherDrive (R) Storage Blade.
 
+source "drivers/s390/block/Kconfig"
+
 endmenu
 
 endif

drivers/char/Kconfig

@@ -1081,5 +1081,7 @@ config DEVPORT
 	depends on ISA || PCI
 	default y
 
+source "drivers/s390/char/Kconfig"
+
 endmenu
 

drivers/crypto/Kconfig

@@ -56,4 +56,26 @@ config CRYPTO_DEV_GEODE
 	  To compile this driver as a module, choose M here: the module
 	  will be called geode-aes.
 
+config ZCRYPT
+	tristate "Support for PCI-attached cryptographic adapters"
+	depends on S390
+	select ZCRYPT_MONOLITHIC if ZCRYPT="y"
+	default "m"
+	help
+	  Select this option if you want to use a PCI-attached cryptographic
+	  adapter like:
+	  + PCI Cryptographic Accelerator (PCICA)
+	  + PCI Cryptographic Coprocessor (PCICC)
+	  + PCI-X Cryptographic Coprocessor (PCIXCC)
+	  + Crypto Express2 Coprocessor (CEX2C)
+	  + Crypto Express2 Accelerator (CEX2A)
+
+config ZCRYPT_MONOLITHIC
+	bool "Monolithic zcrypt module"
+	depends on ZCRYPT="m"
+	help
+	  Select this option if you want to have a single module z90crypt.ko
+	  that contains all parts of the crypto device driver (ap bus,
+	  request router and all the card drivers).
+
 endmenu

drivers/s390/block/Kconfig

-if S390 && BLOCK
-
 comment "S/390 block device drivers"
-	depends on S390
+	depends on S390 && BLOCK
 
 config BLK_DEV_XPRAM
 	tristate "XPRAM disk support"
-	depends on S390
+	depends on S390 && BLOCK
 	help
 	  Select this option if you want to use your expanded storage on S/390
 	  or zSeries as a disk.  This is useful as a _fast_ swap device if you
@@ -15,12 +13,13 @@ config BLK_DEV_XPRAM
 
 config DCSSBLK
 	tristate "DCSSBLK support"
+	depends on S390 && BLOCK
 	help
 	  Support for dcss block device
 
 config DASD
 	tristate "Support for DASD devices"
-	depends on CCW
+	depends on CCW && BLOCK
 	help
 	  Enable this option if you want to access DASDs directly utilizing
 	  S/390s channel subsystem commands. This is necessary for running
@@ -62,5 +61,3 @@ config DASD_EER
 	  This driver provides a character device interface to the
 	  DASD extended error reporting. This is only needed if you want to
 	  use applications written for the EER facility.
-
-endif

drivers/s390/Kconfig → drivers/s390/char/Kconfig

-config CCW
-	bool
-	default y
-
-source "drivers/block/Kconfig"
-
-source "drivers/md/Kconfig"
-
-
-menu "Character device drivers"
-
-config UNIX98_PTYS
-	bool "Unix98 PTY support"
-	---help---
-	  A pseudo terminal (PTY) is a software device consisting of two
-	  halves: a master and a slave. The slave device behaves identical to
-	  a physical terminal; the master device is used by a process to
-	  read data from and write data to the slave, thereby emulating a
-	  terminal. Typical programs for the master side are telnet servers
-	  and xterms.
-
-	  Linux has traditionally used the BSD-like names /dev/ptyxx for
-	  masters and /dev/ttyxx for slaves of pseudo terminals. This scheme
-	  has a number of problems. The GNU C library glibc 2.1 and later,
-	  however, supports the Unix98 naming standard: in order to acquire a
-	  pseudo terminal, a process opens /dev/ptmx; the number of the pseudo
-	  terminal is then made available to the process and the pseudo
-	  terminal slave can be accessed as /dev/pts/<number>. What was
-	  traditionally /dev/ttyp2 will then be /dev/pts/2, for example.
-
-	  The entries in /dev/pts/ are created on the fly by a virtual
-	  file system; therefore, if you say Y here you should say Y to
-	  "/dev/pts file system for Unix98 PTYs" as well.
-
-	  If you want to say Y here, you need to have the C library glibc 2.1
-	  or later (equal to libc-6.1, check with "ls -l /lib/libc.so.*").
-	  Read the instructions in <file:Documentation/Changes> pertaining to
-	  pseudo terminals. It's safe to say N.
-
-config UNIX98_PTY_COUNT
-	int "Maximum number of Unix98 PTYs in use (0-2048)"
-	depends on UNIX98_PTYS
-	default "256"
-	help
-	  The maximum number of Unix98 PTYs that can be used at any one time.
-	  The default is 256, and should be enough for desktop systems. Server
-	  machines which support incoming telnet/rlogin/ssh connections and/or
-	  serve several X terminals may want to increase this: every incoming
-	  connection and every xterm uses up one PTY.
-
-	  When not in use, each additional set of 256 PTYs occupy
-	  approximately 8 KB of kernel memory on 32-bit architectures.
-
-config HANGCHECK_TIMER
-	tristate "Hangcheck timer"
-	help
-	  The hangcheck-timer module detects when the system has gone
-	  out to lunch past a certain margin.  It can reboot the system
-	  or merely print a warning.
-
-source "drivers/char/watchdog/Kconfig"
-
 comment "S/390 character device drivers"
+	depends on S390
 
 config TN3270
 	tristate "Support for locally attached 3270 terminals"
+	depends on CCW
 	help
 	  Include support for IBM 3270 terminals.
 
@@ -88,6 +28,7 @@ config TN3270_CONSOLE
 
 config TN3215
 	bool "Support for 3215 line mode terminal"
+	depends on CCW
 	help
 	  Include support for IBM 3215 line-mode terminals.
 
@@ -103,8 +44,15 @@ config CCW_CONSOLE
 	depends on TN3215_CONSOLE || TN3270_CONSOLE
 	default y
 
+config SCLP
+	bool "Support for SCLP"
+	depends on S390
+	help
+	  Include support for the SCLP interface to the service element.
+
 config SCLP_TTY
 	bool "Support for SCLP line mode terminal"
+	depends on SCLP
 	help
 	  Include support for IBM SCLP line-mode terminals.
 
@@ -117,6 +65,7 @@ config SCLP_CONSOLE
 
 config SCLP_VT220_TTY
 	bool "Support for SCLP VT220-compatible terminal"
+	depends on SCLP
 	help
 	  Include support for an IBM SCLP VT220-compatible terminal.
 
@@ -129,6 +78,7 @@ config SCLP_VT220_CONSOLE
 
 config SCLP_CPI
 	tristate "Control-Program Identification"
+	depends on SCLP
 	help
 	  This option enables the hardware console interface for system
 	  identification. This is commonly used for workload management and
@@ -140,6 +90,7 @@ config SCLP_CPI
 
 config S390_TAPE
 	tristate "S/390 tape device support"
+	depends on CCW
 	help
 	  Select this option if you want to access channel-attached tape
 	  devices on IBM S/390 or zSeries.
@@ -194,6 +145,7 @@ config VMLOGRDR
 
 config VMCP
 	tristate "Support for the z/VM CP interface (VM only)"
+	depends on S390
 	help
 	  Select this option if you want to be able to interact with the control
 	  program on z/VM
@@ -207,33 +159,8 @@ config MONREADER
 
 config MONWRITER
 	tristate "API for writing z/VM monitor service records"
+	depends on S390
 	default "m"
 	help
 	  Character device driver for writing z/VM monitor service records
 
-endmenu
-
-menu "Cryptographic devices"
-
-config ZCRYPT
-	tristate "Support for PCI-attached cryptographic adapters"
-	select ZCRYPT_MONOLITHIC if ZCRYPT="y"
-	default "m"
-	help
-	  Select this option if you want to use a PCI-attached cryptographic
-	  adapter like:
-	  + PCI Cryptographic Accelerator (PCICA)
-	  + PCI Cryptographic Coprocessor (PCICC)
-	  + PCI-X Cryptographic Coprocessor (PCIXCC)
-	  + Crypto Express2 Coprocessor (CEX2C)
-	  + Crypto Express2 Accelerator (CEX2A)
-
-config ZCRYPT_MONOLITHIC
-	bool "Monolithic zcrypt module"
-	depends on ZCRYPT="m"
-	help
-	  Select this option if you want to have a single module z90crypt.ko
-	  that contains all parts of the crypto device driver (ap bus,
-	  request router and all the card drivers).
-
-endmenu

drivers/s390/net/Kconfig

@@ -3,7 +3,7 @@ menu "S/390 network device drivers"
 
 config LCS
 	tristate "Lan Channel Station Interface"
-	depends on NETDEVICES && (NET_ETHERNET || TR || FDDI)
+	depends on CCW && NETDEVICES && (NET_ETHERNET || TR || FDDI)
 	help
 	   Select this option if you want to use LCS networking  on IBM S/390
   	   or zSeries. This device driver supports Token Ring (IEEE 802.5),
@@ -13,7 +13,7 @@ config LCS
 
 config CTC
 	tristate "CTC device support"
-	depends on NETDEVICES
+	depends on CCW && NETDEVICES
 	help
 	  Select this option if you want to use channel-to-channel networking
 	  on IBM S/390 or zSeries. This device driver supports real CTC
@@ -42,7 +42,7 @@ config SMSGIUCV
 
 config CLAW
 	tristate "CLAW device support"
-	depends on NETDEVICES
+	depends on CCW && NETDEVICES
 	help
 	  This driver supports channel attached CLAW devices.
 	  CLAW is Common Link Access for Workstation.  Common devices
@@ -52,7 +52,7 @@ config CLAW
 
 config QETH
 	tristate "Gigabit Ethernet device support"
-	depends on NETDEVICES && IP_MULTICAST && QDIO
+	depends on CCW && NETDEVICES && IP_MULTICAST && QDIO
 	help
 	  This driver supports the IBM S/390 and zSeries OSA Express adapters
 	  in QDIO mode (all media types), HiperSockets interfaces and VM GuestLAN

include/asm-s390/param.h

@@ -10,7 +10,7 @@
 #define _ASMS390_PARAM_H
 
 #ifdef __KERNEL__
-# define HZ		100		/* Internal kernel timer frequency */
+# define HZ		CONFIG_HZ	/* Internal kernel timer frequency */
 # define USER_HZ	100		/* .. some user interfaces are in "ticks" */
 # define CLOCKS_PER_SEC	(USER_HZ)	/* like times() */
 #endif