| 155 | #ifdef RT_USING_SMART |
| 156 | #include "lwp.h" |
| 157 | void handle_user(rt_ubase_t scause, rt_ubase_t stval, rt_ubase_t sepc, |
| 158 | struct rt_hw_stack_frame *sp) |
| 159 | { |
| 160 | rt_ubase_t id = __MASKVALUE(scause, __MASK(63UL)); |
| 161 | struct rt_lwp *lwp; |
| 162 | |
| 163 | /* user page fault */ |
| 164 | enum rt_mm_fault_op fault_op; |
| 165 | enum rt_mm_fault_type fault_type; |
| 166 | switch (id) |
| 167 | { |
| 168 | case EP_LOAD_PAGE_FAULT: |
| 169 | fault_op = MM_FAULT_OP_READ; |
| 170 | fault_type = MM_FAULT_TYPE_GENERIC_MMU; |
| 171 | break; |
| 172 | case EP_LOAD_ACCESS_FAULT: |
| 173 | fault_op = MM_FAULT_OP_READ; |
| 174 | fault_type = MM_FAULT_TYPE_BUS_ERROR; |
| 175 | break; |
| 176 | case EP_LOAD_ADDRESS_MISALIGNED: |
| 177 | fault_op = MM_FAULT_OP_READ; |
| 178 | fault_type = MM_FAULT_TYPE_BUS_ERROR; |
| 179 | break; |
| 180 | case EP_STORE_PAGE_FAULT: |
| 181 | fault_op = MM_FAULT_OP_WRITE; |
| 182 | fault_type = MM_FAULT_TYPE_GENERIC_MMU; |
| 183 | break; |
| 184 | case EP_STORE_ACCESS_FAULT: |
| 185 | fault_op = MM_FAULT_OP_WRITE; |
| 186 | fault_type = MM_FAULT_TYPE_BUS_ERROR; |
| 187 | break; |
| 188 | case EP_STORE_ADDRESS_MISALIGNED: |
| 189 | fault_op = MM_FAULT_OP_WRITE; |
| 190 | fault_type = MM_FAULT_TYPE_BUS_ERROR; |
| 191 | break; |
| 192 | case EP_INSTRUCTION_PAGE_FAULT: |
| 193 | fault_op = MM_FAULT_OP_EXECUTE; |
| 194 | fault_type = MM_FAULT_TYPE_GENERIC_MMU; |
| 195 | break; |
| 196 | case EP_INSTRUCTION_ACCESS_FAULT: |
| 197 | fault_op = MM_FAULT_OP_EXECUTE; |
| 198 | fault_type = MM_FAULT_TYPE_BUS_ERROR; |
| 199 | break; |
| 200 | case EP_INSTRUCTION_ADDRESS_MISALIGNED: |
| 201 | fault_op = MM_FAULT_OP_EXECUTE; |
| 202 | fault_type = MM_FAULT_TYPE_BUS_ERROR; |
| 203 | break; |
| 204 | default: |
| 205 | fault_op = 0; |
| 206 | } |
| 207 | |
| 208 | if (fault_op) |
| 209 | { |
| 210 | rt_base_t saved_stat; |
| 211 | lwp = lwp_self(); |
| 212 | struct rt_aspace_fault_msg msg = { |
| 213 | .fault_op = fault_op, |
| 214 | .fault_type = fault_type, |
no test coverage detected