1/* SPDX-License-Identifier: GPL-2.0 */ 2/* 3 * fixmap.h: compile-time virtual memory allocation 4 * 5 * Copyright (C) 2020-2022 Loongson Technology Corporation Limited 6 */ 7 8#ifndef _ASM_FIXMAP_H 9#define _ASM_FIXMAP_H 10 11#define NR_FIX_BTMAPS 64 12 13enum fixed_addresses { 14 FIX_HOLE, 15 FIX_EARLYCON_MEM_BASE, 16 __end_of_fixed_addresses 17}; 18 19#define FIXADDR_SIZE (__end_of_fixed_addresses << PAGE_SHIFT) 20#define FIXADDR_START (FIXADDR_TOP - FIXADDR_SIZE) 21#define FIXMAP_PAGE_IO PAGE_KERNEL_SUC 22 23extern void __set_fixmap(enum fixed_addresses idx, 24 phys_addr_t phys, pgprot_t flags); 25 26#include <asm-generic/fixmap.h> 27 28#endif 29