LXR linux/arch/microblaze/include/asm/pgalloc.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2/*
   3 * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
   4 * Copyright (C) 2008-2009 PetaLogix
   5 * Copyright (C) 2006 Atmark Techno, Inc.
   6 */
   7
   8#ifndef _ASM_MICROBLAZE_PGALLOC_H
   9#define _ASM_MICROBLAZE_PGALLOC_H
  10
  11#ifdef CONFIG_MMU
  12
  13#include <linux/kernel.h>       /* For min/max macros */
  14#include <linux/highmem.h>
  15#include <linux/pgtable.h>
  16#include <asm/setup.h>
  17#include <asm/io.h>
  18#include <asm/page.h>
  19#include <asm/cache.h>
  20
  21#define __HAVE_ARCH_PTE_ALLOC_ONE_KERNEL
  22#include <asm-generic/pgalloc.h>
  23
  24extern void __bad_pte(pmd_t *pmd);
  25
  26static inline pgd_t *get_pgd(void)
  27{
  28        return (pgd_t *)__get_free_pages(GFP_KERNEL|__GFP_ZERO, 0);
  29}
  30
  31#define pgd_alloc(mm)           get_pgd()
  32
  33#define pmd_pgtable(pmd)        pmd_page(pmd)
  34
  35extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm);
  36
  37#define __pte_free_tlb(tlb, pte, addr)  pte_free((tlb)->mm, (pte))
  38
  39#define pmd_populate(mm, pmd, pte) \
  40                        (pmd_val(*(pmd)) = (unsigned long)page_address(pte))
  41
  42#define pmd_populate_kernel(mm, pmd, pte) \
  43                (pmd_val(*(pmd)) = (unsigned long) (pte))
  44
  45#endif /* CONFIG_MMU */
  46
  47#endif /* _ASM_MICROBLAZE_PGALLOC_H */
  48