diff options
Diffstat (limited to 'arch/powerpc/platforms/Kconfig.cputype')
| -rw-r--r-- | arch/powerpc/platforms/Kconfig.cputype | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype index 99b0ae8acb78..684e886eaae4 100644 --- a/arch/powerpc/platforms/Kconfig.cputype +++ b/arch/powerpc/platforms/Kconfig.cputype @@ -279,7 +279,8 @@ config PPC_ICSWX This option enables kernel support for the PowerPC Initiate Coprocessor Store Word (icswx) coprocessor instruction on POWER7 - or newer processors. + and POWER8 processors. POWER9 uses new copy/paste instructions + to invoke the coprocessor. This option is only useful if you have a processor that supports the icswx coprocessor instruction. It does not have any effect @@ -359,7 +360,7 @@ config PPC_BOOK3E_MMU config PPC_MM_SLICES bool - default y if (!PPC_FSL_BOOK3E && PPC64 && HUGETLB_PAGE) || (PPC_STD_MMU_64 && PPC_64K_PAGES) + default y if PPC_STD_MMU_64 default n config PPC_HAVE_PMU_SUPPORT @@ -371,9 +372,16 @@ config PPC_PERF_CTRS help This enables the powerpc-specific perf_event back-end. +config FORCE_SMP + # Allow platforms to force SMP=y by selecting this + bool + default n + select SMP + config SMP depends on PPC_BOOK3S || PPC_BOOK3E || FSL_BOOKE || PPC_47x - bool "Symmetric multi-processing support" + select GENERIC_IRQ_MIGRATION + bool "Symmetric multi-processing support" if !FORCE_SMP ---help--- This enables support for systems with more than one CPU. If you have a system with only one CPU, say N. If you have a system with more |