diff options
Diffstat (limited to 'arch/powerpc/mm/book3s32/mmu.c')
| -rw-r--r-- | arch/powerpc/mm/book3s32/mmu.c | 30 |
1 files changed, 18 insertions, 12 deletions
diff --git a/arch/powerpc/mm/book3s32/mmu.c b/arch/powerpc/mm/book3s32/mmu.c index a59e7ec98180..859e5bd603ac 100644 --- a/arch/powerpc/mm/book3s32/mmu.c +++ b/arch/powerpc/mm/book3s32/mmu.c @@ -33,19 +33,23 @@ u8 __initdata early_hash[SZ_256K] __aligned(SZ_256K) = {0}; -struct hash_pte *Hash; -static unsigned long Hash_size, Hash_mask; -unsigned long _SDR1; -static unsigned int hash_mb, hash_mb2; +static struct hash_pte __initdata *Hash = (struct hash_pte *)early_hash; +static unsigned long __initdata Hash_size, Hash_mask; +static unsigned int __initdata hash_mb, hash_mb2; +unsigned long __initdata _SDR1; struct ppc_bat BATS[8][2]; /* 8 pairs of IBAT, DBAT */ -struct batrange { /* stores address ranges mapped by BATs */ +static struct batrange { /* stores address ranges mapped by BATs */ unsigned long start; unsigned long limit; phys_addr_t phys; } bat_addrs[8]; +#ifdef CONFIG_SMP +unsigned long mmu_hash_lock; +#endif + /* * Return PA for this VA if it is mapped by a BAT, or 0 */ @@ -157,11 +161,9 @@ unsigned long __init mmu_mapin_ram(unsigned long base, unsigned long top) unsigned long done; unsigned long border = (unsigned long)__init_begin - PAGE_OFFSET; - if (__map_without_bats) { - pr_debug("RAM mapped without BATs\n"); - return base; - } - if (debug_pagealloc_enabled()) { + + if (debug_pagealloc_enabled() || __map_without_bats) { + pr_debug_once("Read-Write memory mapped without BATs\n"); if (base >= border) return base; if (top >= border) @@ -304,11 +306,11 @@ void __init setbat(int index, unsigned long virt, phys_addr_t phys, /* * Preload a translation in the hash table */ -void hash_preload(struct mm_struct *mm, unsigned long ea) +static void hash_preload(struct mm_struct *mm, unsigned long ea) { pmd_t *pmd; - if (!Hash) + if (!mmu_has_feature(MMU_FTR_HPTE_TABLE)) return; pmd = pmd_off(mm, ea); if (!pmd_none(*pmd)) @@ -469,3 +471,7 @@ void __init setup_kuap(bool disabled) pr_warn("KUAP cannot be disabled yet on 6xx when compiled in\n"); } #endif + +void __init early_init_mmu(void) +{ +} |