diff options
| -rw-r--r-- | arch/powerpc/include/asm/book3s/64/mmu.h | 3 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/mmu.h | 11 |
2 files changed, 12 insertions, 2 deletions
diff --git a/arch/powerpc/include/asm/book3s/64/mmu.h b/arch/powerpc/include/asm/book3s/64/mmu.h index 94d52ff49bbe..5854263d4d6e 100644 --- a/arch/powerpc/include/asm/book3s/64/mmu.h +++ b/arch/powerpc/include/asm/book3s/64/mmu.h @@ -23,7 +23,8 @@ struct mmu_psize_def { }; extern struct mmu_psize_def mmu_psize_defs[MMU_PAGE_COUNT]; -#define radix_enabled() (0) +#define radix_enabled() mmu_has_feature(MMU_FTR_RADIX) + #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 fbd6f351c399..e53ebebff474 100644 --- a/arch/powerpc/include/asm/mmu.h +++ b/arch/powerpc/include/asm/mmu.h @@ -88,6 +88,11 @@ */ #define MMU_FTR_1T_SEGMENT ASM_CONST(0x40000000) +/* + * Radix page table available + */ +#define MMU_FTR_RADIX ASM_CONST(0x80000000) + /* MMU feature bit sets for various CPUs */ #define MMU_FTRS_DEFAULT_HPTE_ARCH_V2 \ MMU_FTR_HPTE_TABLE | MMU_FTR_PPCAS_ARCH_V2 @@ -119,7 +124,11 @@ enum { MMU_FTR_USE_TLBRSRV | MMU_FTR_USE_PAIRED_MAS | MMU_FTR_NO_SLBIE_B | MMU_FTR_16M_PAGE | MMU_FTR_TLBIEL | MMU_FTR_LOCKLESS_TLBIE | MMU_FTR_CI_LARGE_PAGE | - MMU_FTR_1T_SEGMENT, + MMU_FTR_1T_SEGMENT | +#ifdef CONFIG_PPC_RADIX_MMU + MMU_FTR_RADIX | +#endif + 0, }; static inline int mmu_has_feature(unsigned long feature) |