PS2SDK
PS2 Homebrew Libraries
sysmem.h
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1 /*
2 # _____ ___ ____ ___ ____
3 # ____| | ____| | | |____|
4 # | ___| |____ ___| ____| | \ PS2DEV Open Source Project.
5 #-----------------------------------------------------------------------
6 # Copyright (c) 2003 Marcus R. Brown <mrbrown@0xd6.org>
7 # Licenced under Academic Free License version 2.0
8 # Review ps2sdk README & LICENSE files for further details.
9 */
10 
16 #ifndef __SYSMEM_H__
17 #define __SYSMEM_H__
18 
19 #include <types.h>
20 #include <irx.h>
21 #include <stdarg.h>
22 
23 #ifdef __cplusplus
24 extern "C" {
25 #endif
26 
27 // Allocation strategies
28 #define ALLOC_FIRST 0
29 #define ALLOC_LAST 1
30 #define ALLOC_ADDRESS 2
31 
32 // see QueryBlockTopAddress, QueryBlockSize
33 #define USED 0x00000000
34 #define FREE 0x80000000
35 
36 typedef struct sysmem_alloc_block_info_
37 {
38  u32 m_allocated : 1;
39  u32 m_address : 15;
40  u32 m_pad : 1;
41  u32 m_size : 15;
42 } sysmem_alloc_block_info_t;
43 
44 typedef struct sysmem_alloc_block_
45 {
46  struct sysmem_alloc_block_ *m_next;
47  sysmem_alloc_block_info_t m_info;
48 } sysmem_alloc_block_t;
49 
50 typedef struct sysmem_alloc_table_
51 {
52  struct sysmem_alloc_table_ *m_next;
53  sysmem_alloc_block_t m_blkarray[31];
54  int m_padding;
55 } sysmem_alloc_table_t;
56 
58 typedef struct sysmem_internals_
59 {
60  int m_memsize;
61  sysmem_alloc_table_t *m_alloclist;
62  /* The following members may change depending on the version of the module. */
63  void *m_intr_suspend_tbl;
64  int m_allocation_count;
65  sysmem_alloc_table_t *m_smemupdate_cur;
66 } sysmem_internals_t;
67 
68 extern sysmem_internals_t *GetSysmemInternalData(void);
69 
70 extern void * AllocSysMemory(int mode, int size, void *ptr);
71 
72 extern int FreeSysMemory(void *ptr);
73 
74 extern u32 QueryMemSize();
75 // In liberx, the following is QueryFreeMemSize
76 extern u32 QueryMaxFreeMemSize();
77 extern u32 QueryTotalFreeMemSize();
78 // In liberx, the following is QueryBlockInfo
79 extern void * QueryBlockTopAddress(void *address);
80 extern int QueryBlockSize(void *address);
81 
82 typedef int (KprintfHandler_t)(void *context, const char *format, va_list ap);
83 
84 extern int Kprintf(const char *format,...);
85 extern void KprintfSet(KprintfHandler_t *, void *context);
86 
87 #define sysmem_IMPORTS_start DECLARE_IMPORT_TABLE(sysmem, 1, 1)
88 #define sysmem_IMPORTS_end END_IMPORT_TABLE
89 
90 #define I_GetSysmemInternalData DECLARE_IMPORT(3, GetSysmemInternalData)
91 #define I_AllocSysMemory DECLARE_IMPORT(4, AllocSysMemory)
92 #define I_FreeSysMemory DECLARE_IMPORT(5, FreeSysMemory)
93 #define I_QueryMemSize DECLARE_IMPORT(6, QueryMemSize)
94 #define I_QueryMaxFreeMemSize DECLARE_IMPORT(7, QueryMaxFreeMemSize)
95 #define I_QueryTotalFreeMemSize DECLARE_IMPORT(8, QueryTotalFreeMemSize)
96 #define I_QueryBlockTopAddress DECLARE_IMPORT(9, QueryBlockTopAddress)
97 #define I_QueryBlockSize DECLARE_IMPORT(10, QueryBlockSize)
98 #define I_Kprintf DECLARE_IMPORT(14, Kprintf)
99 #define I_KprintfSet DECLARE_IMPORT(15, KprintfSet)
100 
101 #ifdef __cplusplus
102 }
103 #endif
104 
105 #endif /* IOP_SYSMEM_H */
sysmem_alloc_block_
Definition: sysmem.h:44
sysmem_alloc_table_
Definition: sysmem.h:50
sysmem_alloc_block_info_
Definition: sysmem.h:36
irx.h
sysmem_internals_
Definition: sysmem.h:58
sysmem_internals_t
struct sysmem_internals_ sysmem_internals_t