1d4c8e725SNicholas Piggin /* SPDX-License-Identifier: GPL-2.0-only */ 2d4c8e725SNicholas Piggin #ifndef _ASMPPC64_PAGE_H_ 3d4c8e725SNicholas Piggin #define _ASMPPC64_PAGE_H_ 4d4c8e725SNicholas Piggin /* 5d4c8e725SNicholas Piggin * Adapted from 6d4c8e725SNicholas Piggin * lib/arm64/asm/page.h and Linux kernel defines. 7d4c8e725SNicholas Piggin * 8d4c8e725SNicholas Piggin * Copyright (C) 2017, Red Hat Inc, Andrew Jones <drjones@redhat.com> 9d4c8e725SNicholas Piggin */ 10d4c8e725SNicholas Piggin 11d4c8e725SNicholas Piggin #include <config.h> 12d4c8e725SNicholas Piggin #include <linux/const.h> 13d4c8e725SNicholas Piggin #include <libcflat.h> 14d4c8e725SNicholas Piggin 15d4c8e725SNicholas Piggin #define VA_BITS 52 16d4c8e725SNicholas Piggin 17d4c8e725SNicholas Piggin #define PAGE_SIZE CONFIG_PAGE_SIZE 18d4c8e725SNicholas Piggin #if PAGE_SIZE == SZ_64K 19d4c8e725SNicholas Piggin #define PAGE_SHIFT 16 20d4c8e725SNicholas Piggin #elif PAGE_SIZE == SZ_4K 21d4c8e725SNicholas Piggin #define PAGE_SHIFT 12 22d4c8e725SNicholas Piggin #else 23d4c8e725SNicholas Piggin #error Unsupported PAGE_SIZE 24d4c8e725SNicholas Piggin #endif 25d4c8e725SNicholas Piggin #define PAGE_MASK (~(PAGE_SIZE-1)) 26d4c8e725SNicholas Piggin 27*0cc3a351SSean Christopherson #ifndef __ASSEMBLER__ 28d4c8e725SNicholas Piggin 29d4c8e725SNicholas Piggin #define PAGE_ALIGN(addr) ALIGN(addr, PAGE_SIZE) 30d4c8e725SNicholas Piggin 31d4c8e725SNicholas Piggin typedef u64 pteval_t; 32d4c8e725SNicholas Piggin typedef u64 pmdval_t; 33d4c8e725SNicholas Piggin typedef u64 pudval_t; 34d4c8e725SNicholas Piggin typedef u64 pgdval_t; 35d4c8e725SNicholas Piggin typedef struct { pteval_t pte; } pte_t; 36d4c8e725SNicholas Piggin typedef struct { pmdval_t pmd; } pmd_t; 37d4c8e725SNicholas Piggin typedef struct { pudval_t pud; } pud_t; 38d4c8e725SNicholas Piggin typedef struct { pgdval_t pgd; } pgd_t; 39d4c8e725SNicholas Piggin typedef struct { pteval_t pgprot; } pgprot_t; 40d4c8e725SNicholas Piggin 41d4c8e725SNicholas Piggin #define pte_val(x) ((x).pte) 42d4c8e725SNicholas Piggin #define pmd_val(x) ((x).pmd) 43d4c8e725SNicholas Piggin #define pud_val(x) ((x).pud) 44d4c8e725SNicholas Piggin #define pgd_val(x) ((x).pgd) 45d4c8e725SNicholas Piggin #define pgprot_val(x) ((x).pgprot) 46d4c8e725SNicholas Piggin 47d4c8e725SNicholas Piggin #define __pte(x) ((pte_t) { (x) } ) 48d4c8e725SNicholas Piggin #define __pmd(x) ((pmd_t) { (x) } ) 49d4c8e725SNicholas Piggin #define __pud(x) ((pud_t) { (x) } ) 50d4c8e725SNicholas Piggin #define __pgd(x) ((pgd_t) { (x) } ) 51d4c8e725SNicholas Piggin #define __pgprot(x) ((pgprot_t) { (x) } ) 52d4c8e725SNicholas Piggin 53d4c8e725SNicholas Piggin #define __va(x) ((void *)__phys_to_virt((phys_addr_t)(x))) 54d4c8e725SNicholas Piggin #define __pa(x) __virt_to_phys((unsigned long)(x)) 55d4c8e725SNicholas Piggin 56d4c8e725SNicholas Piggin #define virt_to_pfn(kaddr) (__pa(kaddr) >> PAGE_SHIFT) 57d4c8e725SNicholas Piggin #define pfn_to_virt(pfn) __va((pfn) << PAGE_SHIFT) 58d4c8e725SNicholas Piggin 59d4c8e725SNicholas Piggin extern phys_addr_t __virt_to_phys(unsigned long addr); 60d4c8e725SNicholas Piggin extern unsigned long __phys_to_virt(phys_addr_t addr); 61d4c8e725SNicholas Piggin 62d4c8e725SNicholas Piggin extern void *__ioremap(phys_addr_t phys_addr, size_t size); 63d4c8e725SNicholas Piggin 64*0cc3a351SSean Christopherson #endif /* !__ASSEMBLER__ */ 65d4c8e725SNicholas Piggin #endif /* _ASMPPC64_PAGE_H_ */ 66