T-Kernel Specification (1.B0.02)

More documents

Recommendations

Info

224 CHAPTER 5. T-KERNEL/SM 5.2.4 Get Physical Address • INT CnvPhysicalAddr( VP vaddr, INT len, VP *paddr ) vaddr len paddr return code Local address Memory space size (in bytes) Returns physical address Returns size (in bytes) of physical address contiguous space, or error Gets the physical address corresponding to logical address vaddr, returning the result in paddr. This function also passes in the return code the size of contiguous space included in len bytes from vaddr. Accordingly, only the space of the size passed in the return code starting from paddr is valid. The space for which the physical address is obtained must be locked (made resident). On the assumption of DMA transfer, memory caching is turned off for the space whose physical address is obtained (the memory space starting from paddr of the size passed in the return code). When the space is made nonresident (unlocked), caching goes back on. Note that if a hardware limitation makes it disable to make memory cached off partly, the system call flush the cache memory (that is, write back it and make it disable). E MACV 5.2.5 Map Memory The memory does not exist • ER MapMemory( VP paddr, INT len, UINT attr, VP *laddr ) Maps len bytes area which starts from paddr in the physical address to logical area returning the logical address in *laddr. The logical address is not to be specified, automatically allocated. If paddr = NULL is specified, some continuous memory in physical memory is automatically allocated and mapped to logical area. The mapped logical area has attributes specified with attr attr := (MM_USER || MM_SYTEM ) | [MM_READ] | [MM_WRITE] | [MM_EXECUTE] | [MM_CDIS] MM USER MM SYSTEM MM READ MM WRITE MM EXECUTE MM CDIS User level access System level access Read access Write access Execution Disable cache These symbols differ from every machines. It requires these symbols to use. Some machines need other attributes except for these show above. E LIMIT E NOMEM Insufficient logical area for mapping Insufficient memory Copyright c○ 2002, 2003 by T-Engine Forum T-Kernel 1.B0.02
5.2. ADDRESS SPACE MANAGEMENT FUNCTIONS 225 • ER UnmapMemory( VP laddr ) Unmaps logica area which allocated by MapMemory(). The logical address allocated by MapMemory() must be set to laddr. If some memory is allocated by MapMemory(), the memory is also unmapped. Copyright c○ 2002, 2003 by T-Engine Forum T-Kernel 1.B0.02
Page 1 and 2:
T-Kernel Specification T-Kernel 1.B
Page 3 and 4:
Contents 1 T-Kernel Overview 1 1.1
Page 5 and 6:
CONTENTS v tk set flg (Set Event Fl
Page 7 and 8:
CONTENTS vii 5.2.2 Address Space Ch
Page 9 and 10:
CONTENTS ix td cal que (Reference Q
Page 11 and 12:
List of Figures 1.1 Position of T-K
Page 13 and 14:
List of Tables 2.1 State Transition
Page 15 and 16:
System Call Notation In the parts o
Page 17 and 18:
Index of T-Kernel/OS System Calls T
Page 19 and 20:
INDEX OF T-KERNEL/OS SYSTEM CALLS x
Page 21 and 22:
Index of T-Kernel/SM Extended SVC L
Page 23 and 24:
Index of T-Kernel/DS System Calls T
Page 25 and 26:
Chapter 1 T-Kernel Overview 1.1 Pos
Page 27 and 28:
1.2. SCALABILITY 3 • Middleware m
Page 29 and 30:
Chapter 2 Concepts Underlying the T
Page 31 and 32:
2.2. TASK STATES AND SCHEDULING RUL
Page 33 and 34:
2.2. TASK STATES AND SCHEDULING RUL
Page 35 and 36:
2.3. INTERRUPT HANDLING 11 preceden
Page 37 and 38:
2.5. SYSTEM STATES 13 Transient sta
Page 39 and 40:
2.7. MEMORY 15 which the upper and
Page 41 and 42:
Chapter 3 Common T-Kernel Specifica
Page 43 and 44:
3.2. SYSTEM CALLS 19 /* * Common co
Page 45 and 46:
3.2. SYSTEM CALLS 21 Ordinarily a f
Page 47 and 48:
3.3. HIGH-LEVEL LANGUAGE SUPPORT RO
Page 49 and 50:
Chapter 4 T-Kernel/OS Functions Thi
Page 51 and 52:
4.1. TASK MANAGEMENT FUNCTIONS 27 t
Page 53 and 54:
4.1. TASK MANAGEMENT FUNCTIONS 29 #
Page 55 and 56:
Page 57 and 58:
Page 59 and 60:
Page 61 and 62:
Page 63 and 64:
Page 65 and 66:
Page 67 and 68:
Page 69 and 70:
Page 71 and 72:
Page 73 and 74:
Page 75 and 76:
Page 77 and 78:
4.2. TASK-DEPENDENT SYNCHRONIZATION
Page 79 and 80:
Page 81 and 82:
Page 83 and 84:
Page 85 and 86:
Page 87 and 88:
Page 89 and 90:
Page 91 and 92:
Page 93 and 94:
4.3. TASK EXCEPTION HANDLING FUNCTI
Page 95 and 96:
Page 97 and 98:
Page 99 and 100:
Page 101 and 102:
4.4. SYNCHRONIZATION AND COMMUNICAT
Page 103 and 104:
Page 105 and 106:
Page 107 and 108:
Page 109 and 110:
Page 111 and 112:
Page 113 and 114:
Page 115 and 116:
Page 117 and 118:
Page 119 and 120:
Page 121 and 122:
Page 123 and 124:
Page 125 and 126:
Page 127 and 128:
Page 129 and 130:
Page 131 and 132:
4.5. EXTENDED SYNCHRONIZATION AND C
Page 133 and 134:
Page 135 and 136:
Page 137 and 138:
Page 139 and 140:
Page 141 and 142:
Page 143 and 144:
Page 145 and 146:
Page 147 and 148:
Page 149 and 150:
Page 151 and 152:
Page 153 and 154:
Page 155 and 156:
Page 157 and 158:
Page 159 and 160:
Page 161 and 162:
Page 163 and 164:
Page 165 and 166:
Page 167 and 168:
Page 169 and 170:
Page 171 and 172:
4.6. MEMORY POOL MANAGEMENT FUNCTIO
Page 173 and 174:
Page 175 and 176:
Page 177 and 178:
Page 179 and 180:
Page 181 and 182:
Page 183 and 184:
Page 185 and 186:
Page 187 and 188:
4.7. TIME MANAGEMENT FUNCTIONS 163
Page 189 and 190:
Page 191 and 192:
Page 193 and 194:
Page 195 and 196:
Page 197 and 198: 4.7. TIME MANAGEMENT FUNCTIONS 173
Page 209 and 210: 4.8. INTERRUPT MANAGEMENT FUNCTIONS
Page 215 and 216: 4.9. SYSTEM MANAGEMENT FUNCTIONS 19
Page 229 and 230: 4.10. SUBSYSTEM MANAGEMENT FUNCTION
Page 243 and 244: Chapter 5 T-Kernel/SM Details of th
Page 245 and 246: 5.1. SYSTEM MEMORY MANAGEMENT FUNCT
Page 247: 5.2. ADDRESS SPACE MANAGEMENT FUNCT
Page 251 and 252: 5.3. DEVICE MANAGEMENT FUNCTIONS 22
Page 275 and 276: 5.5. IO PORT ACCESS SUPPORT FUNCTIO
Page 277 and 278: 5.7. SYSTEM CONFIGURATION INFORMATI
Page 279 and 280: 5.7. SYSTEM CONFIGURATION INFORMATI
Page 281: 5.8. SUBSYSTEM AND DEVICE DRIVER ST
Page 284 and 285: 260 CHAPTER 6. T-KERNEL/DS FUNCTION
Page 298 and 299:
274 CHAPTER 6. T-KERNEL/DS FUNCTION
Page 300 and 301:
Page 302 and 303:
Page 304 and 305:
Page 306 and 307:
Page 308 and 309:
284 CHAPTER 7. REFERENCE INT tevptn
Page 310 and 311:
286 CHAPTER 7. REFERENCE ER ercd =
Page 312 and 313:
288 CHAPTER 7. REFERENCE INT ct = t
Page 314:
290 CHAPTER 7. REFERENCE E OACV ERC
show all

T-Kernel Specification (1.B0.02)

Create successful ePaper yourself

Delete template?

Save as template?