29 lines
612 B
C
29 lines
612 B
C
/* 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
|