select ARCH_USE_BUILTIN_BSWAP
select OLD_SIGSUSPEND
select OLD_SIGACTION if PPC32
+ select HAVE_DEBUG_STACKOVERFLOW
config EARLY_PRINTK
bool
config MATH_EMULATION
bool "Math emulation"
- depends on 4xx || 8xx || E200 || PPC_MPC832x || E500
+ depends on 4xx || 8xx || PPC_MPC832x || BOOKE
---help---
Some PowerPC chips designed for embedded applications do not have
a floating-point unit and therefore do not implement the
unit, which will allow programs that use floating-point
instructions to run.
+ This is also useful to emulate missing (optional) instructions
+ such as fsqrt on cores that do have an FPU but do not implement
+ them (such as Freescale BookE).
+
config PPC_TRANSACTIONAL_MEM
bool "Transactional Memory support for POWERPC"
depends on PPC_BOOK3S_64
---help---
Support user-mode Transactional Memory on POWERPC.
-config 8XX_MINIMAL_FPEMU
- bool "Minimal math emulation for 8xx"
- depends on 8xx && !MATH_EMULATION
- help
- Older arch/ppc kernels still emulated a few floating point
- instructions such as load and store, even when full math
- emulation is disabled. Say "Y" here if you want to preserve
- this behavior.
-
- It is recommended that you build a soft-float userspace instead.
-
config IOMMU_HELPER
def_bool PPC64
config HOTPLUG_CPU
bool "Support for enabling/disabling CPUs"
- depends on SMP && HOTPLUG && (PPC_PSERIES || \
+ depends on SMP && (PPC_PSERIES || \
PPC_PMAC || PPC_POWERNV || (PPC_85xx && !PPC_E500MC))
---help---
Say Y here to be able to disable and re-enable individual