diff options
| -rw-r--r-- | arch/powerpc/include/asm/book3s/64/mmu.h | 2 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/mmu.h | 3 | ||||
| -rw-r--r-- | arch/powerpc/platforms/Kconfig.cputype | 9 |
3 files changed, 14 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/book3s/64/mmu.h b/arch/powerpc/include/asm/book3s/64/mmu.h index b86786f..593d9e3 100644 --- a/arch/powerpc/include/asm/book3s/64/mmu.h +++ b/arch/powerpc/include/asm/book3s/64/mmu.h @@ -19,6 +19,8 @@ struct mmu_psize_def { unsigned long sllp; /* SLB L||LP (exact mask to use in slbmte) */ }; extern struct mmu_psize_def mmu_psize_defs[MMU_PAGE_COUNT]; + +#define radix_enabled() (0) #endif /* __ASSEMBLY__ */ /* 64-bit classic hash table MMU */ diff --git a/arch/powerpc/include/asm/mmu.h b/arch/powerpc/include/asm/mmu.h index 5f55024..decde4c 100644 --- a/arch/powerpc/include/asm/mmu.h +++ b/arch/powerpc/include/asm/mmu.h @@ -204,6 +204,9 @@ static inline void assert_pte_locked(struct mm_struct *mm, unsigned long addr) # include <asm/mmu-8xx.h> #endif +#ifndef radix_enabled +#define radix_enabled() (0) +#endif #endif /* __KERNEL__ */ #endif /* _ASM_POWERPC_MMU_H_ */ diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype index 142dff5..8d2cfb8 100644 --- a/arch/powerpc/platforms/Kconfig.cputype +++ b/arch/powerpc/platforms/Kconfig.cputype @@ -331,6 +331,15 @@ config PPC_STD_MMU_64 def_bool y depends on PPC_STD_MMU && PPC64 +config PPC_RADIX_MMU + bool "Radix MMU Support" + depends on PPC_BOOK3S_64 + default y + help + Enable support for the Power ISA 3.0 Radix style MMU. Currently this + is only implemented by IBM Power9 CPUs, if you don't have one of them + you can probably disable this. + config PPC_MMU_NOHASH def_bool y depends on !PPC_STD_MMU |