| #ifndef _ASMARM64_PAGE_H_ |
| #define _ASMARM64_PAGE_H_ |
| /* |
| * Adapted from |
| * arch/arm64/include/asm/pgtable-types.h |
| * include/asm-generic/pgtable-nopud.h |
| * include/asm-generic/pgtable-nopmd.h |
| * |
| * Copyright (C) 2017, Red Hat Inc, Andrew Jones <drjones@redhat.com> |
| * |
| * This work is licensed under the terms of the GNU GPL, version 2. |
| */ |
| |
| #include <linux/const.h> |
| |
| #define PGTABLE_LEVELS 2 |
| #define VA_BITS 42 |
| |
| #define PAGE_SHIFT 16 |
| #define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT) |
| #define PAGE_MASK (~(PAGE_SIZE-1)) |
| |
| #ifndef __ASSEMBLY__ |
| |
| #define PAGE_ALIGN(addr) ALIGN(addr, PAGE_SIZE) |
| |
| #include <alloc.h> |
| |
| typedef u64 pteval_t; |
| typedef u64 pmdval_t; |
| typedef u64 pudval_t; |
| typedef u64 pgdval_t; |
| typedef struct { pteval_t pte; } pte_t; |
| typedef struct { pgdval_t pgd; } pgd_t; |
| typedef struct { pteval_t pgprot; } pgprot_t; |
| |
| #define pte_val(x) ((x).pte) |
| #define pgd_val(x) ((x).pgd) |
| #define pgprot_val(x) ((x).pgprot) |
| |
| #define __pte(x) ((pte_t) { (x) } ) |
| #define __pgd(x) ((pgd_t) { (x) } ) |
| #define __pgprot(x) ((pgprot_t) { (x) } ) |
| |
| typedef struct { pgd_t pgd; } pud_t; |
| #define pud_val(x) (pgd_val((x).pgd)) |
| #define __pud(x) ((pud_t) { __pgd(x) } ) |
| |
| typedef struct { pud_t pud; } pmd_t; |
| #define pmd_val(x) (pud_val((x).pud)) |
| #define __pmd(x) ((pmd_t) { __pud(x) } ) |
| |
| #ifndef __virt_to_phys |
| #define __phys_to_virt(x) ((unsigned long) (x)) |
| #define __virt_to_phys(x) (x) |
| #endif |
| |
| #define __va(x) ((void *)__phys_to_virt((phys_addr_t)(x))) |
| #define __pa(x) __virt_to_phys((unsigned long)(x)) |
| |
| #define virt_to_pfn(kaddr) (__pa(kaddr) >> PAGE_SHIFT) |
| #define pfn_to_virt(pfn) __va((pfn) << PAGE_SHIFT) |
| |
| #endif /* !__ASSEMBLY__ */ |
| #endif /* _ASMARM64_PAGE_H_ */ |