select ARCH_HAVE_NMI_SAFE_CMPXCHG
select GENERIC_CLOCKEVENTS
select MODULES_USE_ELF_RELA
+ select HAVE_ARCH_TRACEHOOK
+ select HAVE_SYSCALL_TRACEPOINTS
+ select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
# FIXME: investigate whether we need/want these options.
# select HAVE_IOREMAP_PROT
config GENERIC_CSUM
def_bool y
-config SEMAPHORE_SLEEPERS
- def_bool y
-
config HAVE_ARCH_ALLOC_REMAP
def_bool y
config RWSEM_GENERIC_SPINLOCK
def_bool y
-# We have a very flat architecture from a migration point of view,
-# so save boot time by presetting this (particularly useful on tile-sim).
-config DEFAULT_MIGRATION_COST
- int
- default "10000000"
-
# We only support gcc 4.4 and above, so this should work.
config ARCH_SUPPORTS_OPTIMIZED_INLINING
def_bool y
config KERNEL_PL
int "Processor protection level for kernel"
range 1 2
- default "1"
+ default 2 if TILEGX
+ default 1 if !TILEGX
---help---
- This setting determines the processor protection level the
- kernel will be built to run at. Generally you should use
- the default value here.
+ Since MDE 4.2, the Tilera hypervisor runs the kernel
+ at PL2 by default. If running under an older hypervisor,
+ or as a KVM guest, you must run at PL1. (The current
+ hypervisor may also be recompiled with "make HV_PL=2" to
+ allow it to run a kernel at PL1, but clients running at PL1
+ are not expected to be supported indefinitely.)
+
+ If you're not sure, don't change the default.
source "arch/tile/gxio/Kconfig"
menu "Executable file formats"
-# only elf supported
-config KCORE_ELF
- def_bool y
- depends on PROC_FS
-
source "fs/Kconfig.binfmt"
endmenu