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 #include <linux/kernel.h>       /* For min/max macros */
  12 #include <linux/highmem.h>
  13 #include <linux/pgtable.h>
  14 #include <asm/setup.h>
  15 #include <asm/io.h>
  16 #include <asm/page.h>
  17 #include <asm/cache.h>
  18
  19 #define __HAVE_ARCH_PTE_ALLOC_ONE_KERNEL
  20 #include <asm-generic/pgalloc.h>
  21
  22 extern void __bad_pte(pmd_t *pmd);
  23
  24 static inline pgd_t *get_pgd(void)
  25 {
  26         return (pgd_t *)__get_free_pages(GFP_KERNEL|__GFP_ZERO, 0);
  27 }
  28
  29 #define pgd_alloc(mm)           get_pgd()
  30
  31 #define pmd_pgtable(pmd)        pmd_page(pmd)
  32
  33 extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm);
  34
  35 #define __pte_free_tlb(tlb, pte, addr)  pte_free((tlb)->mm, (pte))
  36
  37 #define pmd_populate(mm, pmd, pte) \
  38                         (pmd_val(*(pmd)) = (unsigned long)page_address(pte))
  39
  40 #define pmd_populate_kernel(mm, pmd, pte) \
  41                 (pmd_val(*(pmd)) = (unsigned long) (pte))
  42
  43 #endif /* _ASM_MICROBLAZE_PGALLOC_H */