sysmem.h

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/*
# _____     ___ ____     ___ ____
#  ____|   |    ____|   |        | |____|
# |     ___|   |____ ___|    ____| |    \    PS2DEV Open Source Project.
#-----------------------------------------------------------------------
# Copyright (c) 2003 Marcus R. Brown <mrbrown@0xd6.org>
# Licenced under Academic Free License version 2.0
# Review ps2sdk README & LICENSE files for further details.
*/

 
#ifndef __SYSMEM_H__
#define __SYSMEM_H__
 
#include <types.h>
#include <irx.h>
#include <stdarg.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
// Allocation strategies
#define ALLOC_FIRST 0
#define ALLOC_LAST  1
#define ALLOC_ADDRESS   2
 
// see QueryBlockTopAddress, QueryBlockSize
#define USED    0x00000000
#define FREE    0x80000000
 
typedef struct sysmem_alloc_element_
{
    struct sysmem_alloc_element_ *next;
    unsigned int info;
} sysmem_alloc_element_t;
 
typedef struct sysmem_alloc_table_
{
    struct sysmem_alloc_table_ *next;
    sysmem_alloc_element_t list[31];
    int padding;
} sysmem_alloc_table_t;

typedef struct sysmem_internals_
{
    int memsize;
    sysmem_alloc_table_t *alloclist;
    /* The following members may change depending on the version of the module. */
    void *intr_suspend_tbl;
    int allocation_count;
    sysmem_alloc_table_t *smemupdate_cur;
} sysmem_internals_t;
 
extern sysmem_internals_t *GetSysmemInternalData(void);
 
extern void * AllocSysMemory(int mode, int size, void *ptr);
 
extern int FreeSysMemory(void *ptr);
 
extern u32 QueryMemSize();
// In liberx, the following is QueryFreeMemSize
extern u32 QueryMaxFreeMemSize();
extern u32 QueryTotalFreeMemSize();
// In liberx, the following is QueryBlockInfo
extern void * QueryBlockTopAddress(void *address);
extern int QueryBlockSize(void *address);
 
typedef int (KprintfHandler_t)(void *context, const char *format, va_list ap);
 
extern int Kprintf(const char *format,...);
extern void KprintfSet(KprintfHandler_t *, void *context);
 
#define sysmem_IMPORTS_start DECLARE_IMPORT_TABLE(sysmem, 1, 1)
#define sysmem_IMPORTS_end END_IMPORT_TABLE
 
#define I_GetSysmemInternalData DECLARE_IMPORT(3, GetSysmemInternalData)
#define I_AllocSysMemory DECLARE_IMPORT(4, AllocSysMemory)
#define I_FreeSysMemory DECLARE_IMPORT(5, FreeSysMemory)
#define I_QueryMemSize DECLARE_IMPORT(6, QueryMemSize)
#define I_QueryMaxFreeMemSize DECLARE_IMPORT(7, QueryMaxFreeMemSize)
#define I_QueryTotalFreeMemSize DECLARE_IMPORT(8, QueryTotalFreeMemSize)
#define I_QueryBlockTopAddress DECLARE_IMPORT(9, QueryBlockTopAddress)
#define I_QueryBlockSize DECLARE_IMPORT(10, QueryBlockSize)
#define I_Kprintf DECLARE_IMPORT(14, Kprintf)
#define I_KprintfSet DECLARE_IMPORT(15, KprintfSet)
 
#ifdef __cplusplus
}
#endif
 
#endif /* IOP_SYSMEM_H */