forked from rrcarlosr/Jetpack
59 lines
1.4 KiB
C
59 lines
1.4 KiB
C
|
#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 */
|