diff options
Diffstat (limited to 'arch/powerpc/include/asm/mmu.h')
| -rw-r--r-- | arch/powerpc/include/asm/mmu.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/mmu.h b/arch/powerpc/include/asm/mmu.h index 620e8fe6f8fd..ebf50286a924 100644 --- a/arch/powerpc/include/asm/mmu.h +++ b/arch/powerpc/include/asm/mmu.h @@ -206,8 +206,30 @@ enum { 0, }; +#ifdef CONFIG_PPC_8xx +#define MMU_FTRS_ALWAYS MMU_FTR_TYPE_8xx +#endif +#ifdef CONFIG_40x +#define MMU_FTRS_ALWAYS MMU_FTR_TYPE_40x +#endif +#ifdef CONFIG_PPC_47x +#define MMU_FTRS_ALWAYS MMU_FTR_TYPE_47x +#elif defined(CONFIG_44x) +#define MMU_FTRS_ALWAYS MMU_FTR_TYPE_44x +#endif +#if defined(CONFIG_E200) || defined(CONFIG_E500) +#define MMU_FTRS_ALWAYS MMU_FTR_TYPE_FSL_E +#endif + +#ifndef MMU_FTRS_ALWAYS +#define MMU_FTRS_ALWAYS 0 +#endif + static inline bool early_mmu_has_feature(unsigned long feature) { + if (MMU_FTRS_ALWAYS & feature) + return true; + return !!(MMU_FTRS_POSSIBLE & cur_cpu_spec->mmu_features & feature); } @@ -236,6 +258,9 @@ static __always_inline bool mmu_has_feature(unsigned long feature) } #endif + if (MMU_FTRS_ALWAYS & feature) + return true; + if (!(MMU_FTRS_POSSIBLE & feature)) return false; |