| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * fixmap.h: compile-time virtual memory allocation |
| * |
| * Copyright (C) 2020-2022 Loongson Technology Corporation Limited |
| */ |
| |
| #ifndef _ASM_FIXMAP_H |
| #define _ASM_FIXMAP_H |
| |
| #define NR_FIX_BTMAPS 64 |
| |
| enum fixed_addresses { |
| FIX_HOLE, |
| FIX_EARLYCON_MEM_BASE, |
| __end_of_fixed_addresses |
| }; |
| |
| #define FIXADDR_SIZE (__end_of_fixed_addresses << PAGE_SHIFT) |
| #define FIXADDR_START (FIXADDR_TOP - FIXADDR_SIZE) |
| #define FIXMAP_PAGE_IO PAGE_KERNEL_SUC |
| |
| extern void __set_fixmap(enum fixed_addresses idx, |
| phys_addr_t phys, pgprot_t flags); |
| |
| #include <asm-generic/fixmap.h> |
| |
| #endif |
