[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>

8 files changed, 70 insertions, 139 deletions

diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 1a84719be264..098c62c29f9c 100644
--- a/arch/s390/Kconfig
+++ b/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"
 
diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig
index 17ee97f3a99b..b4c8319138b2 100644
--- a/drivers/block/Kconfig
+++ b/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
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index 7ff85ad62806..abcafac64738 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -1081,5 +1081,7 @@ config DEVPORT
         depends on ISA || PCI
         default y
 
+source "drivers/s390/char/Kconfig"
+
 endmenu
 
diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig
index f4c634504d1a..e678a33ea672 100644
--- a/drivers/crypto/Kconfig
+++ b/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
diff --git a/drivers/s390/block/Kconfig b/drivers/s390/block/Kconfig
index b250c5354503..e879b212cf43 100644
--- a/drivers/s390/block/Kconfig
+++ b/drivers/s390/block/Kconfig
@@ -1,11 +1,9 @@
-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
diff --git a/drivers/s390/Kconfig b/drivers/s390/char/Kconfig
index 165af398fdea..66102a184322 100644
--- a/drivers/s390/Kconfig
+++ b/drivers/s390/char/Kconfig
@@ -1,69 +1,9 @@
-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.
 
@@ -99,12 +40,19 @@ config TN3215_CONSOLE
           Linux system console.
 
 config CCW_CONSOLE
-        bool
-        depends on TN3215_CONSOLE || TN3270_CONSOLE
-        default y
- 
+        bool
+        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
diff --git a/drivers/s390/net/Kconfig b/drivers/s390/net/Kconfig
index f98fa465df0a..eada69dec4fe 100644
--- a/drivers/s390/net/Kconfig
+++ b/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
diff --git a/include/asm-s390/param.h b/include/asm-s390/param.h
index 085a7e229b23..34aaa4603347 100644
--- a/include/asm-s390/param.h
+++ b/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