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git.odroid.com / yocto / uboot / cb1e619824f0c942ccd9b230b5f41caaf7cd91b4 / . / include / lmb.h
blob: 898ce15d076f598db1310dedcc986334aac6fa67 [file] [log] [blame]
Tom Rini83d290c2018-05-06 17:58:06 -0400[diff] [blame]1/* SPDX-License-Identifier: GPL-2.0+ */
Kumar Gala4ed65522008-02-27 21:51:47 -0600[diff] [blame]2#ifndef _LINUX_LMB_H
3#define _LINUX_LMB_H
4#ifdef __KERNEL__
5
6#include <asm/types.h>
Simon Goldschmidt9cc23232019-01-26 22:13:04 +0100[diff] [blame]7#include <asm/u-boot.h>
8
Kumar Gala4ed65522008-02-27 21:51:47 -0600[diff] [blame]9/*
10 * Logical memory blocks.
11 *
12 * Copyright (C) 2001 Peter Bergner, IBM Corp.
Kumar Gala4ed65522008-02-27 21:51:47 -0600[diff] [blame]13 */
14
Kumar Gala4ed65522008-02-27 21:51:47 -0600[diff] [blame]15struct lmb_property {
Becky Bruce391fd932008-06-09 20:37:18 -0500[diff] [blame]16 phys_addr_t base;
17 phys_size_t size;
Kumar Gala4ed65522008-02-27 21:51:47 -0600[diff] [blame]18};
19
20struct lmb_region {
21 unsigned long cnt;
Patrick Delaunay00fd8da2021-03-10 10:16:27 +0100[diff] [blame]22 unsigned long max;
Patrick Delaunaycb1e6192021-03-10 10:16:29 +0100[diff] [blame^]23 struct lmb_property region[CONFIG_LMB_MAX_REGIONS];
Kumar Gala4ed65522008-02-27 21:51:47 -0600[diff] [blame]24};
25
26struct lmb {
27 struct lmb_region memory;
28 struct lmb_region reserved;
29};
30
Kumar Gala4ed65522008-02-27 21:51:47 -0600[diff] [blame]31extern void lmb_init(struct lmb *lmb);
Masahiro Yamadab75d8dc2020-06-26 15:13:33 +0900[diff] [blame]32extern void lmb_init_and_reserve(struct lmb *lmb, struct bd_info *bd,
33 void *fdt_blob);
Simon Goldschmidt9cc23232019-01-26 22:13:04 +0100[diff] [blame]34extern void lmb_init_and_reserve_range(struct lmb *lmb, phys_addr_t base,
35 phys_size_t size, void *fdt_blob);
Becky Bruce391fd932008-06-09 20:37:18 -0500[diff] [blame]36extern long lmb_add(struct lmb *lmb, phys_addr_t base, phys_size_t size);
37extern long lmb_reserve(struct lmb *lmb, phys_addr_t base, phys_size_t size);
38extern phys_addr_t lmb_alloc(struct lmb *lmb, phys_size_t size, ulong align);
39extern phys_addr_t lmb_alloc_base(struct lmb *lmb, phys_size_t size, ulong align,
40 phys_addr_t max_addr);
41extern phys_addr_t __lmb_alloc_base(struct lmb *lmb, phys_size_t size, ulong align,
42 phys_addr_t max_addr);
Simon Goldschmidt4cc8af82019-01-14 22:38:18 +0100[diff] [blame]43extern phys_addr_t lmb_alloc_addr(struct lmb *lmb, phys_addr_t base,
44 phys_size_t size);
Simon Goldschmidt65304aa2019-01-21 20:29:55 +0100[diff] [blame]45extern phys_size_t lmb_get_free_size(struct lmb *lmb, phys_addr_t addr);
Becky Bruce391fd932008-06-09 20:37:18 -0500[diff] [blame]46extern int lmb_is_reserved(struct lmb *lmb, phys_addr_t addr);
Andy Fleming98874ff2008-07-07 14:24:39 -0500[diff] [blame]47extern long lmb_free(struct lmb *lmb, phys_addr_t base, phys_size_t size);
Kumar Gala4ed65522008-02-27 21:51:47 -0600[diff] [blame]48
49extern void lmb_dump_all(struct lmb *lmb);
Tero Kristo9996cea2020-07-20 11:10:45 +0300[diff] [blame]50extern void lmb_dump_all_force(struct lmb *lmb);
Kumar Gala4ed65522008-02-27 21:51:47 -0600[diff] [blame]51
Becky Bruce391fd932008-06-09 20:37:18 -0500[diff] [blame]52static inline phys_size_t
Kumar Gala4ed65522008-02-27 21:51:47 -0600[diff] [blame]53lmb_size_bytes(struct lmb_region *type, unsigned long region_nr)
54{
55 return type->region[region_nr].size;
56}
Mike Frysingera16028d2009-11-03 11:35:59 -0500[diff] [blame]57
58void board_lmb_reserve(struct lmb *lmb);
59void arch_lmb_reserve(struct lmb *lmb);
60
Kumar Gala4ed65522008-02-27 21:51:47 -0600[diff] [blame]61#endif /* __KERNEL__ */
62
63#endif /* _LINUX_LMB_H */