diff options
Diffstat (limited to 'arch/arm64/include/asm/page.h')
| -rw-r--r-- | arch/arm64/include/asm/page.h | 67 |
1 files changed, 27 insertions, 40 deletions
diff --git a/arch/arm64/include/asm/page.h b/arch/arm64/include/asm/page.h index 46bf66628b6a..00f117ff4f7a 100644 --- a/arch/arm64/include/asm/page.h +++ b/arch/arm64/include/asm/page.h @@ -1,66 +1,53 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Based on arch/arm/include/asm/page.h * * Copyright (C) 1995-2003 Russell King * Copyright (C) 2012 ARM Ltd. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. */ #ifndef __ASM_PAGE_H #define __ASM_PAGE_H -/* PAGE_SHIFT determines the page size */ -#ifdef CONFIG_ARM64_64K_PAGES -#define PAGE_SHIFT 16 -#else -#define PAGE_SHIFT 12 -#endif -#define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT) -#define PAGE_MASK (~(PAGE_SIZE-1)) +#include <asm/page-def.h> -/* We do define AT_SYSINFO_EHDR but don't use the gate mechanism */ -#define __HAVE_ARCH_GATE_AREA 1 +#ifndef __ASSEMBLER__ -#ifndef __ASSEMBLY__ +#include <linux/personality.h> /* for READ_IMPLIES_EXEC */ +#include <linux/types.h> /* for gfp_t */ +#include <asm/pgtable-types.h> -#ifdef CONFIG_ARM64_64K_PAGES -#include <asm/pgtable-2level-types.h> -#else -#include <asm/pgtable-3level-types.h> -#endif +struct page; +struct vm_area_struct; -extern void __cpu_clear_user_page(void *p, unsigned long user); -extern void __cpu_copy_user_page(void *to, const void *from, - unsigned long user); extern void copy_page(void *to, const void *from); extern void clear_page(void *to); -#define clear_user_page(addr,vaddr,pg) __cpu_clear_user_page(addr, vaddr) -#define copy_user_page(to,from,vaddr,pg) __cpu_copy_user_page(to, from, vaddr) +void copy_user_highpage(struct page *to, struct page *from, + unsigned long vaddr, struct vm_area_struct *vma); +#define __HAVE_ARCH_COPY_USER_HIGHPAGE + +void copy_highpage(struct page *to, struct page *from); +#define __HAVE_ARCH_COPY_HIGHPAGE + +struct folio *vma_alloc_zeroed_movable_folio(struct vm_area_struct *vma, + unsigned long vaddr); +#define vma_alloc_zeroed_movable_folio vma_alloc_zeroed_movable_folio + +bool tag_clear_highpages(struct page *to, int numpages); +#define __HAVE_ARCH_TAG_CLEAR_HIGHPAGES + +#define clear_user_page(page, vaddr, pg) clear_page(page) +#define copy_user_page(to, from, vaddr, pg) copy_page(to, from) typedef struct page *pgtable_t; -#ifdef CONFIG_HAVE_ARCH_PFN_VALID -extern int pfn_valid(unsigned long); -#endif +int pfn_is_map_memory(unsigned long pfn); #include <asm/memory.h> -#endif /* !__ASSEMBLY__ */ +#endif /* !__ASSEMBLER__ */ -#define VM_DATA_DEFAULT_FLAGS \ - (((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0) | \ - VM_READ | VM_WRITE | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) +#define VM_DATA_DEFAULT_FLAGS (VM_DATA_FLAGS_TSK_EXEC | VM_MTE_ALLOWED) #include <asm-generic/getorder.h> |