3de360c3fd
CONFIG_SPARSEMEM_VMEMMAP is now the only available memory model on arm64 platforms and free_unused_memmap() would just return without creating any holes in the memmap mapping. There is no need for any special handling in pfn_valid() and HAVE_ARCH_PFN_VALID can just be dropped. This also moves the pfn upper bits sanity check into generic pfn_valid(). [rppt: rebased on v5.15-rc3] Link: https://lkml.kernel.org/r/1621947349-25421-1-git-send-email-anshuman.khandual@arm.com Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com> Acked-by: David Hildenbrand <david@redhat.com> Acked-by: Mike Rapoport <rppt@linux.ibm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will@kernel.org> Cc: David Hildenbrand <david@redhat.com> Cc: Mike Rapoport <rppt@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Link: https://lore.kernel.org/r/20210930013039.11260-3-rppt@kernel.org Signed-off-by: Will Deacon <will@kernel.org>
55 lines
1.3 KiB
C
55 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Based on arch/arm/include/asm/page.h
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*
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* Copyright (C) 1995-2003 Russell King
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* Copyright (C) 2012 ARM Ltd.
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*/
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#ifndef __ASM_PAGE_H
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#define __ASM_PAGE_H
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#include <asm/page-def.h>
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#ifndef __ASSEMBLY__
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#include <linux/personality.h> /* for READ_IMPLIES_EXEC */
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#include <linux/types.h> /* for gfp_t */
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#include <asm/pgtable-types.h>
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struct page;
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struct vm_area_struct;
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extern void copy_page(void *to, const void *from);
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extern void clear_page(void *to);
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void copy_user_highpage(struct page *to, struct page *from,
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unsigned long vaddr, struct vm_area_struct *vma);
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#define __HAVE_ARCH_COPY_USER_HIGHPAGE
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void copy_highpage(struct page *to, struct page *from);
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#define __HAVE_ARCH_COPY_HIGHPAGE
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struct page *alloc_zeroed_user_highpage_movable(struct vm_area_struct *vma,
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unsigned long vaddr);
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#define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE_MOVABLE
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void tag_clear_highpage(struct page *to);
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#define __HAVE_ARCH_TAG_CLEAR_HIGHPAGE
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#define clear_user_page(page, vaddr, pg) clear_page(page)
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#define copy_user_page(to, from, vaddr, pg) copy_page(to, from)
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typedef struct page *pgtable_t;
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int pfn_is_map_memory(unsigned long pfn);
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#include <asm/memory.h>
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#endif /* !__ASSEMBLY__ */
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#define VM_DATA_DEFAULT_FLAGS (VM_DATA_FLAGS_TSK_EXEC | VM_MTE_ALLOWED)
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#include <asm-generic/getorder.h>
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#endif
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