diff options
Diffstat (limited to 'arch/powerpc/kernel/cputable.c')
| -rw-r--r-- | arch/powerpc/kernel/cputable.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c index e3da41f8ef93..74248ab18e98 100644 --- a/arch/powerpc/kernel/cputable.c +++ b/arch/powerpc/kernel/cputable.c @@ -2243,4 +2243,21 @@ void __init cpu_feature_keys_init(void) static_branch_disable(&cpu_feature_keys[i]); } } + +struct static_key_true mmu_feature_keys[NUM_MMU_FTR_KEYS] = { + [0 ... NUM_MMU_FTR_KEYS - 1] = STATIC_KEY_TRUE_INIT +}; +EXPORT_SYMBOL_GPL(mmu_feature_keys); + +void __init mmu_feature_keys_init(void) +{ + int i; + + for (i = 0; i < NUM_MMU_FTR_KEYS; i++) { + unsigned long f = 1ul << i; + + if (!(cur_cpu_spec->mmu_features & f)) + static_branch_disable(&mmu_feature_keys[i]); + } +} #endif |