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

Pull s390 updates from Martin Schwidefsky:
 "The first part of the s390 updates for 4.14:

   - Add machine type 0x3906 for IBM z14

   - Add IBM z14 TLB flushing improvements for KVM guests

   - Exploit the TOD clock epoch extension to provide a continuous TOD
     clock afer 2042/09/17

   - Add NIAI spinlock hints for IBM z14

   - Rework the vmcp driver and use CMA for the respone buffer of z/VM
     CP commands

   - Drop some s390 specific asm headers and use the generic version

   - Add block discard for DASD-FBA devices under z/VM

   - Add average request times to DASD statistics

   - A few of those constify patches which seem to be in vogue right now

   - Cleanup and bug fixes"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (50 commits)
  s390/mm: avoid empty zero pages for KVM guests to avoid postcopy hangs
  s390/dasd: Add discard support for FBA devices
  s390/zcrypt: make CPRBX const
  s390/uaccess: avoid mvcos jump label
  s390/mm: use generic mm_hooks
  s390/facilities: fix typo
  s390/vmcp: simplify vmcp_response_free()
  s390/topology: Remove the unused parent_node() macro
  s390/dasd: Change unsigned long long to unsigned long
  s390/smp: convert cpuhp_setup_state() return code to zero on success
  s390: fix 'novx' early parameter handling
  s390/dasd: add average request times to dasd statistics
  s390/scm: use common completion path
  s390/pci: log changes to uid checking
  s390/vmcp: simplify vmcp_ioctl()
  s390/vmcp: return -ENOTTY for unknown ioctl commands
  s390/vmcp: split vmcp header file and move to uapi
  s390/vmcp: make use of contiguous memory allocator
  s390/cpcmd,vmcp: avoid GFP_DMA allocations
  s390/vmcp: fix uaccess check and avoid undefined behavior
  ...

1 files changed, 18 insertions, 0 deletions

diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 7eeb75d758c1..48af970320cb 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -222,6 +222,10 @@ config HAVE_MARCH_Z13_FEATURES
 	def_bool n
 	select HAVE_MARCH_ZEC12_FEATURES
 
+config HAVE_MARCH_Z14_FEATURES
+	def_bool n
+	select HAVE_MARCH_Z13_FEATURES
+
 choice
 	prompt "Processor type"
 	default MARCH_Z196
@@ -282,6 +286,14 @@ config MARCH_Z13
 	  2964 series). The kernel will be slightly faster but will not work on
 	  older machines.
 
+config MARCH_Z14
+	bool "IBM z14"
+	select HAVE_MARCH_Z14_FEATURES
+	help
+	  Select this to enable optimizations for IBM z14 (3906 series).
+	  The kernel will be slightly faster but will not work on older
+	  machines.
+
 endchoice
 
 config MARCH_Z900_TUNE
@@ -305,6 +317,9 @@ config MARCH_ZEC12_TUNE
 config MARCH_Z13_TUNE
 	def_bool TUNE_Z13 || MARCH_Z13 && TUNE_DEFAULT
 
+config MARCH_Z14_TUNE
+	def_bool TUNE_Z14 || MARCH_Z14 && TUNE_DEFAULT
+
 choice
 	prompt "Tune code generation"
 	default TUNE_DEFAULT
@@ -343,6 +358,9 @@ config TUNE_ZEC12
 config TUNE_Z13
 	bool "IBM z13"
 
+config TUNE_Z14
+	bool "IBM z14"
+
 endchoice
 
 config 64BIT