#ifndef _ASM_IA64_PGALLOC_H #define _ASM_IA64_PGALLOC_H /* * This file contains the functions and defines necessary to allocate * page tables. * * This hopefully works with any (fixed) ia-64 page-size, as defined * in <asm/page.h> (currently 8192). * * Copyright (C) 1998-2001 Hewlett-Packard Co * David Mosberger-Tang <davidm@hpl.hp.com> * Copyright (C) 2000, Goutham Rao <goutham.rao@intel.com> */ #include <linux/compiler.h> #include <linux/mm.h> #include <linux/page-flags.h> #include <linux/threads.h> #include <linux/quicklist.h> #include <asm/mmu_context.h> static inline pgd_t *pgd_alloc(struct mm_struct *mm) { return quicklist_alloc(0, GFP_KERNEL, NULL); } static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd) { quicklist_free(0, NULL, pgd); } #ifdef CONFIG_PGTABLE_4 static inline void pgd_populate(struct mm_struct *mm, pgd_t * pgd_entry, pud_t * pud) { pgd_val(*pgd_entry) = __pa(pud); } static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr) { return quicklist_alloc(0, GFP_KERNEL, NULL); } static inline void pud_free(struct mm_struct *mm, pud_t *pud) { quicklist_free(0, NULL, pud); } #define __pud_free_tlb(tlb, pud) pud_free((tlb)->mm, pud) #endif /* CONFIG_PGTABLE_4 */ static inline void pud_populate(struct mm_struct *mm, pud_t * pud_entry, pmd_t * pmd) { pud_val(*pud_entry) = __pa(pmd); } static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr) { return quicklist_alloc(0, GFP_KERNEL, NULL); } static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd) { quicklist_free(0, NULL, pmd); } #define __pmd_free_tlb(tlb, pmd) pmd_free((tlb)->mm, pmd) static inline void pmd_populate(struct mm_struct *mm, pmd_t * pmd_entry, pgtable_t pte) { pmd_val(*pmd_entry) = page_to_phys(pte); } #define pmd_pgtable(pmd) pmd_page(pmd) static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t * pmd_entry, pte_t * pte) { pmd_val(*pmd_entry) = __pa(pte); } static inline pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long addr) { struct page *page; void *pg; pg = quicklist_alloc(0, GFP_KERNEL, NULL); if (!pg) return NULL; page = virt_to_page(pg); pgtable_page_ctor(page); return page; } static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr) { return quicklist_alloc(0, GFP_KERNEL, NULL); } static inline void pte_free(struct mm_struct *mm, pgtable_t pte) { pgtable_page_dtor(pte); quicklist_free_page(0, NULL, pte); } static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte) { quicklist_free(0, NULL, pte); } static inline void check_pgt_cache(void) { quicklist_trim(0, NULL, 25, 16); } #define __pte_free_tlb(tlb, pte) pte_free((tlb)->mm, pte) #endif /* _ASM_IA64_PGALLOC_H */