#ifndef _LINUX_LMB_H #define _LINUX_LMB_H #ifdef __KERNEL__ #include <asm/types.h> /* * Logical memory blocks. * * Copyright (C) 2001 Peter Bergner, IBM Corp. * * SPDX-License-Identifier: GPL-2.0+ */ #define MAX_LMB_REGIONS 8 struct lmb_property { phys_addr_t base; phys_size_t size; }; struct lmb_region { unsigned long cnt; phys_size_t size; struct lmb_property region[MAX_LMB_REGIONS+1]; }; struct lmb { struct lmb_region memory; struct lmb_region reserved; }; extern struct lmb lmb; extern void lmb_init(struct lmb *lmb); extern long lmb_add(struct lmb *lmb, phys_addr_t base, phys_size_t size); extern long lmb_reserve(struct lmb *lmb, phys_addr_t base, phys_size_t size); extern phys_addr_t lmb_alloc(struct lmb *lmb, phys_size_t size, ulong align); extern phys_addr_t lmb_alloc_base(struct lmb *lmb, phys_size_t size, ulong align, phys_addr_t max_addr); extern phys_addr_t __lmb_alloc_base(struct lmb *lmb, phys_size_t size, ulong align, phys_addr_t max_addr); extern int lmb_is_reserved(struct lmb *lmb, phys_addr_t addr); extern long lmb_free(struct lmb *lmb, phys_addr_t base, phys_size_t size); extern void lmb_dump_all(struct lmb *lmb); static inline phys_size_t lmb_size_bytes(struct lmb_region *type, unsigned long region_nr) { return type->region[region_nr].size; } void board_lmb_reserve(struct lmb *lmb); void arch_lmb_reserve(struct lmb *lmb); #endif /* __KERNEL__ */ #endif /* _LINUX_LMB_H */