diff options
Diffstat (limited to 'arch/powerpc/mm/pgtable-hash64.c')
| -rw-r--r-- | arch/powerpc/mm/pgtable-hash64.c | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/arch/powerpc/mm/pgtable-hash64.c b/arch/powerpc/mm/pgtable-hash64.c index 469808e77e58..c08d49046a96 100644 --- a/arch/powerpc/mm/pgtable-hash64.c +++ b/arch/powerpc/mm/pgtable-hash64.c @@ -24,6 +24,10 @@ #define CREATE_TRACE_POINTS #include <trace/events/thp.h> +#if H_PGTABLE_RANGE > (USER_VSID_RANGE * (TASK_SIZE_USER64 / TASK_CONTEXT_SIZE)) +#warning Limited user VSID range means pagetable space is wasted +#endif + #ifdef CONFIG_SPARSEMEM_VMEMMAP /* * vmemmap is the starting address of the virtual address space where @@ -138,7 +142,7 @@ void hash__vmemmap_remove_mapping(unsigned long start, * map_kernel_page adds an entry to the ioremap page table * and adds an entry to the HPT, possibly bolting it */ -int hash__map_kernel_page(unsigned long ea, unsigned long pa, unsigned long flags) +int hash__map_kernel_page(unsigned long ea, unsigned long pa, pgprot_t prot) { pgd_t *pgdp; pud_t *pudp; @@ -157,8 +161,7 @@ int hash__map_kernel_page(unsigned long ea, unsigned long pa, unsigned long flag ptep = pte_alloc_kernel(pmdp, ea); if (!ptep) return -ENOMEM; - set_pte_at(&init_mm, ea, ptep, pfn_pte(pa >> PAGE_SHIFT, - __pgprot(flags))); + set_pte_at(&init_mm, ea, ptep, pfn_pte(pa >> PAGE_SHIFT, prot)); } else { /* * If the mm subsystem is not fully up, we cannot create a @@ -166,7 +169,7 @@ int hash__map_kernel_page(unsigned long ea, unsigned long pa, unsigned long flag * entry in the hardware page table. * */ - if (htab_bolt_mapping(ea, ea + PAGE_SIZE, pa, flags, + if (htab_bolt_mapping(ea, ea + PAGE_SIZE, pa, pgprot_val(prot), mmu_io_psize, mmu_kernel_ssize)) { printk(KERN_ERR "Failed to do bolted mapping IO " "memory at %016lx !\n", pa); @@ -189,7 +192,7 @@ unsigned long hash__pmd_hugepage_update(struct mm_struct *mm, unsigned long addr #ifdef CONFIG_DEBUG_VM WARN_ON(!hash__pmd_trans_huge(*pmdp) && !pmd_devmap(*pmdp)); - assert_spin_locked(&mm->page_table_lock); + assert_spin_locked(pmd_lockptr(mm, pmdp)); #endif __asm__ __volatile__( @@ -261,7 +264,8 @@ void hash__pgtable_trans_huge_deposit(struct mm_struct *mm, pmd_t *pmdp, pgtable_t pgtable) { pgtable_t *pgtable_slot; - assert_spin_locked(&mm->page_table_lock); + + assert_spin_locked(pmd_lockptr(mm, pmdp)); /* * we store the pgtable in the second half of PMD */ @@ -281,7 +285,8 @@ pgtable_t hash__pgtable_trans_huge_withdraw(struct mm_struct *mm, pmd_t *pmdp) pgtable_t pgtable; pgtable_t *pgtable_slot; - assert_spin_locked(&mm->page_table_lock); + assert_spin_locked(pmd_lockptr(mm, pmdp)); + pgtable_slot = (pgtable_t *)pmdp + PTRS_PER_PMD; pgtable = *pgtable_slot; /* @@ -320,7 +325,7 @@ void hpte_do_hugepage_flush(struct mm_struct *mm, unsigned long addr, if (!is_kernel_addr(addr)) { ssize = user_segment_size(addr); - vsid = get_vsid(mm->context.id, addr, ssize); + vsid = get_user_vsid(&mm->context, addr, ssize); WARN_ON(vsid == 0); } else { vsid = get_kernel_vsid(addr, mmu_kernel_ssize); |
