diff options
Diffstat (limited to 'arch/s390/Kconfig')
| -rw-r--r-- | arch/s390/Kconfig | 42 |
1 files changed, 34 insertions, 8 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 68b68d755fdf..373cd5badf1c 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -66,6 +66,7 @@ config S390 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS select ARCH_HAS_GCOV_PROFILE_ALL + select ARCH_HAS_SG_CHAIN select ARCH_HAVE_NMI_SAFE_CMPXCHG select ARCH_INLINE_READ_LOCK select ARCH_INLINE_READ_LOCK_BH @@ -116,7 +117,6 @@ config S390 select HAVE_BPF_JIT if 64BIT && PACK_STACK select HAVE_CMPXCHG_DOUBLE select HAVE_CMPXCHG_LOCAL - select HAVE_C_RECORDMCOUNT select HAVE_DEBUG_KMEMLEAK select HAVE_DYNAMIC_FTRACE if 64BIT select HAVE_DYNAMIC_FTRACE_WITH_REGS if 64BIT @@ -151,7 +151,6 @@ config S390 select TTY select VIRT_CPU_ACCOUNTING select VIRT_TO_BUS - select ARCH_HAS_SG_CHAIN config SCHED_OMIT_FRAME_POINTER def_bool y @@ -185,6 +184,10 @@ config HAVE_MARCH_ZEC12_FEATURES def_bool n select HAVE_MARCH_Z196_FEATURES +config HAVE_MARCH_Z13_FEATURES + def_bool n + select HAVE_MARCH_ZEC12_FEATURES + choice prompt "Processor type" default MARCH_G5 @@ -244,6 +247,14 @@ config MARCH_ZEC12 2827 series). The kernel will be slightly faster but will not work on older machines. +config MARCH_Z13 + bool "IBM z13" + select HAVE_MARCH_Z13_FEATURES if 64BIT + help + Select this to enable optimizations for IBM z13 (2964 series). + The kernel will be slightly faster but will not work on older + machines. + endchoice config MARCH_G5_TUNE @@ -267,6 +278,9 @@ config MARCH_Z196_TUNE config MARCH_ZEC12_TUNE def_bool TUNE_ZEC12 || MARCH_ZEC12 && TUNE_DEFAULT +config MARCH_Z13_TUNE + def_bool TUNE_Z13 || MARCH_Z13 && TUNE_DEFAULT + choice prompt "Tune code generation" default TUNE_DEFAULT @@ -305,6 +319,9 @@ config TUNE_Z196 config TUNE_ZEC12 bool "IBM zBC12 and zEC12" +config TUNE_Z13 + bool "IBM z13" + endchoice config 64BIT @@ -356,14 +373,14 @@ config SMP Even if you don't know what to do here, say Y. config NR_CPUS - int "Maximum number of CPUs (2-256)" - range 2 256 + int "Maximum number of CPUs (2-512)" + range 2 512 depends on SMP default "32" if !64BIT default "64" if 64BIT help This allows you to specify the maximum number of CPUs which this - kernel will support. The maximum supported value is 256 and the + kernel will support. The maximum supported value is 512 and the minimum value which makes sense is 2. This is purely to save memory - each supported CPU adds @@ -378,17 +395,26 @@ config HOTPLUG_CPU can be controlled through /sys/devices/system/cpu/cpu#. Say N if you want to disable CPU hotplug. +config SCHED_SMT + def_bool n + config SCHED_MC def_bool n config SCHED_BOOK + def_bool n + +config SCHED_TOPOLOGY def_bool y - prompt "Book scheduler support" + prompt "Topology scheduler support" depends on SMP + select SCHED_SMT select SCHED_MC + select SCHED_BOOK help - Book scheduler support improves the CPU scheduler's decision making - when dealing with machines that have several books. + Topology scheduler support improves the CPU scheduler's decision + making when dealing with machines that have multi-threading, + multiple cores or multiple books. source kernel/Kconfig.preempt |