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1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * Copyright (C) 2008-2009 Michal Simek <[email protected]>
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
24 extern void __bad_pte(pmd_t *pmd);
25
26 static 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
35 extern 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 */
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