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author | Iru Cai <mytbk920423@gmail.com> | 2019-10-30 14:21:52 +0800 |
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committer | Iru Cai <mytbk920423@gmail.com> | 2019-10-30 14:48:38 +0800 |
commit | ae51f41d14f548d494ac41e0d21137c5a4c3f59c (patch) | |
tree | 6ddb9d1aaa7bd5bad5bbf8497edc2e08ff208d79 /include/lmb.h | |
download | uext4-ae51f41d14f548d494ac41e0d21137c5a4c3f59c.tar.xz |
import the U-Boot code and make it compile
Diffstat (limited to 'include/lmb.h')
-rw-r--r-- | include/lmb.h | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/include/lmb.h b/include/lmb.h new file mode 100644 index 0000000..3b338df --- /dev/null +++ b/include/lmb.h @@ -0,0 +1,63 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +#ifndef _LINUX_LMB_H +#define _LINUX_LMB_H +#ifdef __KERNEL__ + +#include <asm/types.h> +#include <asm/u-boot.h> + +/* + * Logical memory blocks. + * + * Copyright (C) 2001 Peter Bergner, IBM Corp. + */ + +#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 void lmb_init(struct lmb *lmb); +extern void lmb_init_and_reserve(struct lmb *lmb, bd_t *bd, void *fdt_blob); +extern void lmb_init_and_reserve_range(struct lmb *lmb, phys_addr_t base, + phys_size_t size, void *fdt_blob); +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 phys_addr_t lmb_alloc_addr(struct lmb *lmb, phys_addr_t base, + phys_size_t size); +extern phys_size_t lmb_get_free_size(struct lmb *lmb, phys_addr_t 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 */ |