14726dd60SMichal Simek /* SPDX-License-Identifier: GPL-2.0 */ 26a3cece5SMichal Simek /* 31f84e1eaSMichal Simek * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu> 41f84e1eaSMichal Simek * Copyright (C) 2008-2009 PetaLogix 56a3cece5SMichal Simek * Copyright (C) 2006 Atmark Techno, Inc. 66a3cece5SMichal Simek */ 76a3cece5SMichal Simek 86a3cece5SMichal Simek #ifndef _ASM_MICROBLAZE_PGALLOC_H 96a3cece5SMichal Simek #define _ASM_MICROBLAZE_PGALLOC_H 106a3cece5SMichal Simek 111f84e1eaSMichal Simek #ifdef CONFIG_MMU 121f84e1eaSMichal Simek 131f84e1eaSMichal Simek #include <linux/kernel.h> /* For min/max macros */ 141f84e1eaSMichal Simek #include <linux/highmem.h> 151f84e1eaSMichal Simek #include <asm/setup.h> 161f84e1eaSMichal Simek #include <asm/io.h> 171f84e1eaSMichal Simek #include <asm/page.h> 181f84e1eaSMichal Simek #include <asm/cache.h> 1979bf3a13SMichal Simek #include <asm/pgtable.h> 201f84e1eaSMichal Simek 211b9a9d85SMike Rapoport #define __HAVE_ARCH_PTE_ALLOC_ONE_KERNEL 221b9a9d85SMike Rapoport #include <asm-generic/pgalloc.h> 231b9a9d85SMike Rapoport 241f84e1eaSMichal Simek extern void __bad_pte(pmd_t *pmd); 251f84e1eaSMichal Simek 2613224794SNicholas Piggin static inline pgd_t *get_pgd(void) 271f84e1eaSMichal Simek { 2813224794SNicholas Piggin return (pgd_t *)__get_free_pages(GFP_KERNEL|__GFP_ZERO, 0); 291f84e1eaSMichal Simek } 301f84e1eaSMichal Simek 3113224794SNicholas Piggin static inline void free_pgd(pgd_t *pgd) 321f84e1eaSMichal Simek { 331f84e1eaSMichal Simek free_page((unsigned long)pgd); 341f84e1eaSMichal Simek } 351f84e1eaSMichal Simek 3613224794SNicholas Piggin #define pgd_free(mm, pgd) free_pgd(pgd) 3713224794SNicholas Piggin #define pgd_alloc(mm) get_pgd() 381f84e1eaSMichal Simek 391f84e1eaSMichal Simek #define pmd_pgtable(pmd) pmd_page(pmd) 401f84e1eaSMichal Simek 414cf58924SJoel Fernandes (Google) extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm); 421f84e1eaSMichal Simek 439e1b32caSBenjamin Herrenschmidt #define __pte_free_tlb(tlb, pte, addr) pte_free((tlb)->mm, (pte)) 441f84e1eaSMichal Simek 455f0cb3e0SMichal Simek #define pmd_populate(mm, pmd, pte) \ 465f0cb3e0SMichal Simek (pmd_val(*(pmd)) = (unsigned long)page_address(pte)) 471f84e1eaSMichal Simek 481f84e1eaSMichal Simek #define pmd_populate_kernel(mm, pmd, pte) \ 491f84e1eaSMichal Simek (pmd_val(*(pmd)) = (unsigned long) (pte)) 501f84e1eaSMichal Simek 511f84e1eaSMichal Simek #endif /* CONFIG_MMU */ 521f84e1eaSMichal Simek 536a3cece5SMichal Simek #endif /* _ASM_MICROBLAZE_PGALLOC_H */ 54