/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* (C) Copyright 2019 Rockchip Electronics Co., Ltd
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*/
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#ifndef _SYSMEM_H
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#define _SYSMEM_H
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#include <memblk.h>
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#include <malloc.h>
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/*
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* CONFIG_SYS_FDT_PAD default value is sync with bootm framework in:
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* common/image-fdt.c
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*/
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#ifndef CONFIG_SYS_FDT_PAD
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#define CONFIG_SYS_FDT_PAD 0x3000
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#endif
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struct sysmem {
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struct lmb lmb;
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struct list_head allocated_head;
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struct list_head kmem_resv_head;
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ulong allocated_cnt;
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ulong kmem_resv_cnt;
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bool has_initf;
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bool has_initr;
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};
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#ifdef CONFIG_SYSMEM
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/**
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* sysmem_has_init() - Is sysmem initialized
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*
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* @return true or false
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*/
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bool sysmem_has_init(void);
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/**
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* sysmem_init() - Sysmem initialization
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*
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* @return 0 on success, otherwise error
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*/
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int sysmem_init(void);
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/**
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* sysmem_initr() - Sysmem initialization after relocation
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*
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* @return 0 on success, otherwise error
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*/
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int sysmem_initr(void);
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/**
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* sysmem_alloc() - Alloc sysmem region at anywhere
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*
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* @id: memblk id
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* @size: region size
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*
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* @return NULL on error, otherwise the allocated region address ptr
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*/
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void *sysmem_alloc(enum memblk_id id, phys_size_t size);
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/**
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* sysmem_alloc_by_name() - Alloc sysmem region by name at the expect addr
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*
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* @name: memblk name
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* @size: region size
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*
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* @return NULL on error, otherwise the allocated region address ptr
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*/
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void *sysmem_alloc_by_name(const char *name, phys_size_t size);
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/**
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* sysmem_alloc_base() - Alloc sysmem region at the expect addr
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*
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* @id: memblk id
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* @base: region base
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* @size: region size
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*
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* @return NULL on error, otherwise the allocated region address ptr
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*/
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void *sysmem_alloc_base(enum memblk_id id, phys_addr_t base, phys_size_t size);
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/**
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* sysmem_alloc_base_by_name() - Alloc sysmem region at the expect addr by name
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*
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* @name: memblk name
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* @base: region base
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* @size: region size
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*
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* @return NULL on error, otherwise the allocated region address ptr
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*/
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void *sysmem_alloc_base_by_name(const char *name,
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phys_addr_t base, phys_size_t size);
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/**
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* sysmem_fdt_reserve_alloc_base() - Alloc sysmem region at the expect addr by name,
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* called only for reserve memory from fdt.
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*
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* @name: memblk name
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* @base: region base
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* @size: region size
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*
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* @return NULL on error, otherwise the allocated region address ptr
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*/
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void *sysmem_fdt_reserve_alloc_base(const char *name,
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phys_addr_t base, phys_size_t size);
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/**
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* sysmem_alloc_temporary_mem() - Alloc a temporary shared memory buffer
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*
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* @size: region size
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*
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* @return 0 on failed, otherwise allocated addr.
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*/
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ulong sysmem_alloc_temporary_mem(phys_size_t size);
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/**
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* sysmem_free() - Free allocated sysmem region
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*
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* @base: region base
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*
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* @return 0 on success, otherwise error
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*/
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int sysmem_free(phys_addr_t base);
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/**
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* sysmem_dump() - Dump all sysmem region state
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*/
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void sysmem_dump(void);
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/**
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* sysmem_overflow_check() - Sysmem regions overflow check
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*/
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void sysmem_overflow_check(void);
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/**
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* board_sysmem_reserve() - Weak function for board to implement
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*
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* @sysmem: global sysmem point, ignored
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*
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* @return 0 on success, otherwise error
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*/
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int board_sysmem_reserve(struct sysmem *sysmem);
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#else
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static inline bool sysmem_has_init(void) { return false; }
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static inline int sysmem_init(void) { return 0; }
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static inline int sysmem_initr(void) { return 0; }
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static inline int sysmem_free(phys_addr_t base) { return 0; }
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static inline void sysmem_dump(void) {}
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static inline void sysmem_overflow_check(void) {}
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__weak int board_sysmem_reserve(struct sysmem *sysmem) { return 0; }
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static inline void *sysmem_alloc(enum memblk_id id, phys_size_t size)
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{
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return malloc(size);
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}
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static inline ulong sysmem_alloc_temporary_mem(phys_size_t size)
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{
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return 0;
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}
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static inline void *sysmem_alloc_base(enum memblk_id id,
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phys_addr_t base, phys_size_t size)
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{
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return (void *)base;
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}
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static inline void *sysmem_alloc_base_by_name(const char *name,
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phys_addr_t base,
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phys_size_t size)
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{
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return (void *)base;
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}
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static inline void *sysmem_fdt_reserve_alloc_base(const char *name,
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phys_addr_t base,
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phys_size_t size)
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{
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return (void *)base;
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}
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#endif /* CONFIG_SYSMEM */
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#endif /* _SYSMEM_H */
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