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On powerpc 8xx huge_ptep_get() will need to know whether the given ptep is a PTE entry or a PMD entry. This cannot be known with the PMD entry itself because there is no easy way to know it from the content of the entry. So huge_ptep_get() will need to know either the size of the page or get the pmd. In order to be consistent with huge_ptep_get_and_clear(), give mm and address to huge_ptep_get(). Link: https://lkml.kernel.org/r/cc00c70dd384298796a4e1b25d6c4eb306d3af85.1719928057.git.christophe.leroy@csgroup.eu Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Reviewed-by: Oscar Salvador <osalvador@suse.de> Cc: Jason Gunthorpe <jgg@nvidia.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Nicholas Piggin <npiggin@gmail.com> Cc: Peter Xu <peterx@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
57 lines
1.7 KiB
C
57 lines
1.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_RISCV_HUGETLB_H
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#define _ASM_RISCV_HUGETLB_H
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#include <asm/cacheflush.h>
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#include <asm/page.h>
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static inline void arch_clear_hugetlb_flags(struct folio *folio)
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{
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clear_bit(PG_dcache_clean, &folio->flags);
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}
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#define arch_clear_hugetlb_flags arch_clear_hugetlb_flags
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#ifdef CONFIG_ARCH_ENABLE_HUGEPAGE_MIGRATION
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bool arch_hugetlb_migration_supported(struct hstate *h);
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#define arch_hugetlb_migration_supported arch_hugetlb_migration_supported
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#endif
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#ifdef CONFIG_RISCV_ISA_SVNAPOT
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#define __HAVE_ARCH_HUGE_PTE_CLEAR
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void huge_pte_clear(struct mm_struct *mm, unsigned long addr,
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pte_t *ptep, unsigned long sz);
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#define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
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void set_huge_pte_at(struct mm_struct *mm,
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unsigned long addr, pte_t *ptep, pte_t pte,
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unsigned long sz);
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#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
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pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
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unsigned long addr, pte_t *ptep);
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#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
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pte_t huge_ptep_clear_flush(struct vm_area_struct *vma,
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unsigned long addr, pte_t *ptep);
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#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
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void huge_ptep_set_wrprotect(struct mm_struct *mm,
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unsigned long addr, pte_t *ptep);
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#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
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int huge_ptep_set_access_flags(struct vm_area_struct *vma,
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unsigned long addr, pte_t *ptep,
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pte_t pte, int dirty);
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#define __HAVE_ARCH_HUGE_PTEP_GET
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pte_t huge_ptep_get(struct mm_struct *mm, unsigned long addr, pte_t *ptep);
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pte_t arch_make_huge_pte(pte_t entry, unsigned int shift, vm_flags_t flags);
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#define arch_make_huge_pte arch_make_huge_pte
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#endif /*CONFIG_RISCV_ISA_SVNAPOT*/
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#include <asm-generic/hugetlb.h>
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#endif /* _ASM_RISCV_HUGETLB_H */
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