[PATCH] ppc64: sys_ppc32.c cleanups

[powerpc.git] / arch / ppc64 / Kconfig

diff --git a/arch/ppc64/Kconfig b/arch/ppc64/Kconfig
index bae56ec..f804f25 100644 (file)
--- a/arch/ppc64/Kconfig
+++ b/arch/ppc64/Kconfig
@@ -142,6 +142,23 @@ config PPC_SPLPAR
          processors, that is, which share physical processors between
          two or more partitions.
 
+config KEXEC
+       bool "kexec system call (EXPERIMENTAL)"
+       depends on PPC_MULTIPLATFORM && EXPERIMENTAL
+       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 it is indepedent of the system firmware.  And like a reboot
+         you can start any kernel with it, not just Linux.
+
+         The name comes from the similiarity to the exec system call.
+
+         It is an ongoing process to be certain the hardware in a machine
+         is properly shutdown, so do not be surprised if this code does not
+         initially work for you.  It may help to enable device hotplugging
+         support.  As of this writing the exact hardware interface is
+         strongly in flux, so no good recommendation can be made.
+
 config IBMVIO
        depends on PPC_PSERIES || PPC_ISERIES
        bool
@@ -217,13 +234,49 @@ config HMT
          This option enables hardware multithreading on RS64 cpus.
          pSeries systems p620 and p660 have such a cpu type.
 
-config DISCONTIGMEM
-       bool "Discontiguous Memory Support"
+config ARCH_SELECT_MEMORY_MODEL
+       def_bool y
+
+config ARCH_FLATMEM_ENABLE
+       def_bool y
+       depends on !NUMA
+
+config ARCH_DISCONTIGMEM_ENABLE
+       def_bool y
        depends on SMP && PPC_PSERIES
 
+config ARCH_DISCONTIGMEM_DEFAULT
+       def_bool y
+       depends on ARCH_DISCONTIGMEM_ENABLE
+
+config ARCH_FLATMEM_ENABLE
+       def_bool y
+
+config ARCH_SPARSEMEM_ENABLE
+       def_bool y
+       depends on ARCH_DISCONTIGMEM_ENABLE
+
+source "mm/Kconfig"
+
+config HAVE_ARCH_EARLY_PFN_TO_NID
+       def_bool y
+       depends on NEED_MULTIPLE_NODES
+
+# Some NUMA nodes have memory ranges that span
+# other nodes.  Even though a pfn is valid and
+# between a node's start and end pfns, it may not
+# reside on that node.
+#
+# This is a relatively temporary hack that should
+# be able to go away when sparsemem is fully in
+# place
+config NODES_SPAN_OTHER_NODES
+       def_bool y
+       depends on NEED_MULTIPLE_NODES
+
 config NUMA
        bool "NUMA support"
-       depends on DISCONTIGMEM
+       default y if DISCONTIGMEM || SPARSEMEM
 
 config SCHED_SMT
        bool "SMT (Hyperthreading) scheduler support"
@@ -234,26 +287,7 @@ config SCHED_SMT
          when dealing with POWER5 cpus at a cost of slightly increased
          overhead in some places. If unsure say N here.
 
-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.
-
-         Say Y here if you are building a kernel for a desktop, embedded
-         or real-time system.  Say N if you are unsure.
-
-config PREEMPT_BKL
-       bool "Preempt The Big Kernel Lock"
-       depends on PREEMPT
-       default y
-       help
-         This option reduces the latency of the kernel by making the
-         big kernel lock preemptible.
-
-         Say Y here if you are building a kernel for a desktop system.
-         Say N if you are unsure.
+source "kernel/Kconfig.preempt"
 
 config EEH
        bool "PCI Extended Error Handling (EEH)" if EMBEDDED