diff options
Diffstat (limited to 'arch/parisc/include')
| -rw-r--r-- | arch/parisc/include/asm/pgalloc.h | 19 | ||||
| -rw-r--r-- | arch/parisc/include/asm/pgtable.h | 16 |
2 files changed, 18 insertions, 17 deletions
diff --git a/arch/parisc/include/asm/pgalloc.h b/arch/parisc/include/asm/pgalloc.h index f213f5b4c423..1ba29369257c 100644 --- a/arch/parisc/include/asm/pgalloc.h +++ b/arch/parisc/include/asm/pgalloc.h @@ -26,7 +26,7 @@ static inline pgd_t *pgd_alloc(struct mm_struct *mm) if (likely(pgd != NULL)) { memset(pgd, 0, PAGE_SIZE<<PGD_ALLOC_ORDER); -#ifdef CONFIG_64BIT +#if PT_NLEVELS == 3 actual_pgd += PTRS_PER_PGD; /* Populate first pmd with allocated memory. We mark it * with PxD_FLAG_ATTACHED as a signal to the system that this @@ -45,13 +45,13 @@ static inline pgd_t *pgd_alloc(struct mm_struct *mm) static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd) { -#ifdef CONFIG_64BIT +#if PT_NLEVELS == 3 pgd -= PTRS_PER_PGD; #endif free_pages((unsigned long)pgd, PGD_ALLOC_ORDER); } -#if PT_NLEVELS == 3 +#if CONFIG_PGTABLE_LEVELS == 3 /* Three Level Page Table Support for pmd's */ @@ -72,12 +72,15 @@ static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address) static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd) { -#ifdef CONFIG_64BIT if(pmd_flag(*pmd) & PxD_FLAG_ATTACHED) - /* This is the permanent pmd attached to the pgd; - * cannot free it */ + /* + * This is the permanent pmd attached to the pgd; + * cannot free it. + * Increment the counter to compensate for the decrement + * done by generic mm code. + */ + mm_inc_nr_pmds(mm); return; -#endif free_pages((unsigned long)pmd, PMD_ORDER); } @@ -99,7 +102,7 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd) static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte) { -#ifdef CONFIG_64BIT +#if PT_NLEVELS == 3 /* preserve the gateway marker if this is the beginning of * the permanent pmd */ if(pmd_flag(*pmd) & PxD_FLAG_ATTACHED) diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h index 15207b9362bf..0a183756d6ec 100644 --- a/arch/parisc/include/asm/pgtable.h +++ b/arch/parisc/include/asm/pgtable.h @@ -68,13 +68,11 @@ extern void purge_tlb_entries(struct mm_struct *, unsigned long); #define KERNEL_INITIAL_ORDER 24 /* 0 to 1<<24 = 16MB */ #define KERNEL_INITIAL_SIZE (1 << KERNEL_INITIAL_ORDER) -#if defined(CONFIG_64BIT) && defined(CONFIG_PARISC_PAGE_SIZE_4KB) -#define PT_NLEVELS 3 +#if CONFIG_PGTABLE_LEVELS == 3 #define PGD_ORDER 1 /* Number of pages per pgd */ #define PMD_ORDER 1 /* Number of pages per pmd */ #define PGD_ALLOC_ORDER 2 /* first pgd contains pmd */ #else -#define PT_NLEVELS 2 #define PGD_ORDER 1 /* Number of pages per pgd */ #define PGD_ALLOC_ORDER PGD_ORDER #endif @@ -93,7 +91,7 @@ extern void purge_tlb_entries(struct mm_struct *, unsigned long); #define PMD_SHIFT (PLD_SHIFT + BITS_PER_PTE) #define PMD_SIZE (1UL << PMD_SHIFT) #define PMD_MASK (~(PMD_SIZE-1)) -#if PT_NLEVELS == 3 +#if CONFIG_PGTABLE_LEVELS == 3 #define BITS_PER_PMD (PAGE_SHIFT + PMD_ORDER - BITS_PER_PMD_ENTRY) #else #define __PAGETABLE_PMD_FOLDED @@ -277,7 +275,7 @@ extern unsigned long *empty_zero_page; #define pgd_flag(x) (pgd_val(x) & PxD_FLAG_MASK) #define pgd_address(x) ((unsigned long)(pgd_val(x) &~ PxD_FLAG_MASK) << PxD_VALUE_SHIFT) -#if PT_NLEVELS == 3 +#if CONFIG_PGTABLE_LEVELS == 3 /* The first entry of the permanent pmd is not there if it contains * the gateway marker */ #define pmd_none(x) (!pmd_val(x) || pmd_flag(x) == PxD_FLAG_ATTACHED) @@ -287,7 +285,7 @@ extern unsigned long *empty_zero_page; #define pmd_bad(x) (!(pmd_flag(x) & PxD_FLAG_VALID)) #define pmd_present(x) (pmd_flag(x) & PxD_FLAG_PRESENT) static inline void pmd_clear(pmd_t *pmd) { -#if PT_NLEVELS == 3 +#if CONFIG_PGTABLE_LEVELS == 3 if (pmd_flag(*pmd) & PxD_FLAG_ATTACHED) /* This is the entry pointing to the permanent pmd * attached to the pgd; cannot clear it */ @@ -299,7 +297,7 @@ static inline void pmd_clear(pmd_t *pmd) { -#if PT_NLEVELS == 3 +#if CONFIG_PGTABLE_LEVELS == 3 #define pgd_page_vaddr(pgd) ((unsigned long) __va(pgd_address(pgd))) #define pgd_page(pgd) virt_to_page((void *)pgd_page_vaddr(pgd)) @@ -309,7 +307,7 @@ static inline void pmd_clear(pmd_t *pmd) { #define pgd_bad(x) (!(pgd_flag(x) & PxD_FLAG_VALID)) #define pgd_present(x) (pgd_flag(x) & PxD_FLAG_PRESENT) static inline void pgd_clear(pgd_t *pgd) { -#if PT_NLEVELS == 3 +#if CONFIG_PGTABLE_LEVELS == 3 if(pgd_flag(*pgd) & PxD_FLAG_ATTACHED) /* This is the permanent pmd attached to the pgd; cannot * free it */ @@ -393,7 +391,7 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) /* Find an entry in the second-level page table.. */ -#if PT_NLEVELS == 3 +#if CONFIG_PGTABLE_LEVELS == 3 #define pmd_offset(dir,address) \ ((pmd_t *) pgd_page_vaddr(*(dir)) + (((address)>>PMD_SHIFT) & (PTRS_PER_PMD-1))) #else |