1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Copyright (c) 2017 Red Hat Inc 4 * 5 * Authors: 6 * Thomas Huth <thuth@redhat.com> 7 * David Hildenbrand <david@redhat.com> 8 */ 9 #ifndef _ASMS390X_PAGE_H_ 10 #define _ASMS390X_PAGE_H_ 11 12 #include <asm-generic/page.h> 13 14 typedef uint64_t pgdval_t; /* Region-1 table entry */ 15 typedef uint64_t p4dval_t; /* Region-2 table entry*/ 16 typedef uint64_t pudval_t; /* Region-3 table entry */ 17 typedef uint64_t pmdval_t; /* Segment table entry */ 18 typedef uint64_t pteval_t; /* Page table entry */ 19 20 typedef struct { pgdval_t pgd; } pgd_t; 21 typedef struct { p4dval_t p4d; } p4d_t; 22 typedef struct { pudval_t pud; } pud_t; 23 typedef struct { pmdval_t pmd; } pmd_t; 24 typedef struct { pteval_t pte; } pte_t; 25 26 #define pgd_val(x) ((x).pgd) 27 #define p4d_val(x) ((x).p4d) 28 #define pud_val(x) ((x).pud) 29 #define pmd_val(x) ((x).pmd) 30 #define pte_val(x) ((x).pte) 31 32 #define __pgd(x) ((pgd_t) { (x) } ) 33 #define __p4d(x) ((p4d_t) { (x) } ) 34 #define __pud(x) ((pud_t) { (x) } ) 35 #define __pmd(x) ((pmd_t) { (x) } ) 36 #define __pte(x) ((pte_t) { (x) } ) 37 38 #define HPAGE_SHIFT 20 39 #define HPAGE_SIZE (_AC(1,UL) << HPAGE_SHIFT) 40 #define HPAGE_MASK (~(HPAGE_SIZE-1)) 41 42 #endif 43