9996cea75f
Dump lmb status from the bdinfo command. This is useful for seeing the reserved memory regions from the u-boot cmdline. Signed-off-by: Tero Kristo <t-kristo@ti.com>
66 lines
1.8 KiB
C
66 lines
1.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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#ifndef _LINUX_LMB_H
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#define _LINUX_LMB_H
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#ifdef __KERNEL__
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#include <asm/types.h>
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#include <asm/u-boot.h>
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/*
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* Logical memory blocks.
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*
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* Copyright (C) 2001 Peter Bergner, IBM Corp.
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*/
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#define MAX_LMB_REGIONS 8
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struct lmb_property {
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phys_addr_t base;
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phys_size_t size;
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};
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struct lmb_region {
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unsigned long cnt;
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phys_size_t size;
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struct lmb_property region[MAX_LMB_REGIONS+1];
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};
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struct lmb {
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struct lmb_region memory;
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struct lmb_region reserved;
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};
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extern void lmb_init(struct lmb *lmb);
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extern void lmb_init_and_reserve(struct lmb *lmb, struct bd_info *bd,
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void *fdt_blob);
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extern void lmb_init_and_reserve_range(struct lmb *lmb, phys_addr_t base,
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phys_size_t size, void *fdt_blob);
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extern long lmb_add(struct lmb *lmb, phys_addr_t base, phys_size_t size);
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extern long lmb_reserve(struct lmb *lmb, phys_addr_t base, phys_size_t size);
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extern phys_addr_t lmb_alloc(struct lmb *lmb, phys_size_t size, ulong align);
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extern phys_addr_t lmb_alloc_base(struct lmb *lmb, phys_size_t size, ulong align,
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phys_addr_t max_addr);
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extern phys_addr_t __lmb_alloc_base(struct lmb *lmb, phys_size_t size, ulong align,
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phys_addr_t max_addr);
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extern phys_addr_t lmb_alloc_addr(struct lmb *lmb, phys_addr_t base,
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phys_size_t size);
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extern phys_size_t lmb_get_free_size(struct lmb *lmb, phys_addr_t addr);
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extern int lmb_is_reserved(struct lmb *lmb, phys_addr_t addr);
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extern long lmb_free(struct lmb *lmb, phys_addr_t base, phys_size_t size);
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extern void lmb_dump_all(struct lmb *lmb);
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extern void lmb_dump_all_force(struct lmb *lmb);
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static inline phys_size_t
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lmb_size_bytes(struct lmb_region *type, unsigned long region_nr)
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{
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return type->region[region_nr].size;
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}
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void board_lmb_reserve(struct lmb *lmb);
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void arch_lmb_reserve(struct lmb *lmb);
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#endif /* __KERNEL__ */
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#endif /* _LINUX_LMB_H */
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