Rev 1742 | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed
| Rev 1742 | Rev 1780 | ||
|---|---|---|---|
| Line 69... | Line 69... | ||
| 69 | 69 | ||
| 70 | 70 | ||
| 71 | /* Why the linker moves the variable 64K away in assembler |
71 | /* Why the linker moves the variable 64K away in assembler |
| 72 | * when not in .text section ???????? |
72 | * when not in .text section ???????? |
| 73 | */ |
73 | */ |
| 74 | __address supervisor_sp __attribute__ ((section (".text"))); |
74 | uintptr_t supervisor_sp __attribute__ ((section (".text"))); |
| 75 | /* Stack pointer saved when entering user mode */ |
75 | /* Stack pointer saved when entering user mode */ |
| 76 | /* TODO: How do we do it on SMP system???? */ |
76 | /* TODO: How do we do it on SMP system???? */ |
| 77 | bootinfo_t bootinfo __attribute__ ((section (".text"))); |
77 | bootinfo_t bootinfo __attribute__ ((section (".text"))); |
| 78 | 78 | ||
| 79 | void arch_pre_main(void) |
79 | void arch_pre_main(void) |
| 80 | { |
80 | { |
| 81 | /* Setup usermode */ |
81 | /* Setup usermode */ |
| 82 | init.cnt = bootinfo.cnt; |
82 | init.cnt = bootinfo.cnt; |
| 83 | 83 | ||
| 84 | __u32 i; |
84 | uint32_t i; |
| 85 | 85 | ||
| 86 | for (i = 0; i < bootinfo.cnt; i++) { |
86 | for (i = 0; i < bootinfo.cnt; i++) { |
| 87 | init.tasks[i].addr = bootinfo.tasks[i].addr; |
87 | init.tasks[i].addr = bootinfo.tasks[i].addr; |
| 88 | init.tasks[i].size = bootinfo.tasks[i].size; |
88 | init.tasks[i].size = bootinfo.tasks[i].size; |
| 89 | } |
89 | } |
| Line 144... | Line 144... | ||
| 144 | { |
144 | { |
| 145 | /* EXL=1, UM=1, IE=1 */ |
145 | /* EXL=1, UM=1, IE=1 */ |
| 146 | cp0_status_write(cp0_status_read() | (cp0_status_exl_exception_bit | |
146 | cp0_status_write(cp0_status_read() | (cp0_status_exl_exception_bit | |
| 147 | cp0_status_um_bit | |
147 | cp0_status_um_bit | |
| 148 | cp0_status_ie_enabled_bit)); |
148 | cp0_status_ie_enabled_bit)); |
| 149 | cp0_epc_write((__address) kernel_uarg->uspace_entry); |
149 | cp0_epc_write((uintptr_t) kernel_uarg->uspace_entry); |
| 150 | userspace_asm(((__address) kernel_uarg->uspace_stack+PAGE_SIZE), |
150 | userspace_asm(((uintptr_t) kernel_uarg->uspace_stack+PAGE_SIZE), |
| 151 | (__address) kernel_uarg->uspace_uarg, |
151 | (uintptr_t) kernel_uarg->uspace_uarg, |
| 152 | (__address) kernel_uarg->uspace_entry); |
152 | (uintptr_t) kernel_uarg->uspace_entry); |
| 153 | while (1) |
153 | while (1) |
| 154 | ; |
154 | ; |
| 155 | } |
155 | } |
| 156 | 156 | ||
| 157 | /** Perform mips32 specific tasks needed before the new task is run. */ |
157 | /** Perform mips32 specific tasks needed before the new task is run. */ |
| Line 160... | Line 160... | ||
| 160 | } |
160 | } |
| 161 | 161 | ||
| 162 | /** Perform mips32 specific tasks needed before the new thread is scheduled. */ |
162 | /** Perform mips32 specific tasks needed before the new thread is scheduled. */ |
| 163 | void before_thread_runs_arch(void) |
163 | void before_thread_runs_arch(void) |
| 164 | { |
164 | { |
| 165 | supervisor_sp = (__address) &THREAD->kstack[THREAD_STACK_SIZE-SP_DELTA]; |
165 | supervisor_sp = (uintptr_t) &THREAD->kstack[THREAD_STACK_SIZE-SP_DELTA]; |
| 166 | } |
166 | } |
| 167 | 167 | ||
| 168 | void after_thread_ran_arch(void) |
168 | void after_thread_ran_arch(void) |
| 169 | { |
169 | { |
| 170 | } |
170 | } |
| Line 172... | Line 172... | ||
| 172 | /** Set thread-local-storage pointer |
172 | /** Set thread-local-storage pointer |
| 173 | * |
173 | * |
| 174 | * We have it currently in K1, it is |
174 | * We have it currently in K1, it is |
| 175 | * possible to have it separately in the future. |
175 | * possible to have it separately in the future. |
| 176 | */ |
176 | */ |
| 177 | __native sys_tls_set(__native addr) |
177 | unative_t sys_tls_set(unative_t addr) |
| 178 | { |
178 | { |
| 179 | return 0; |
179 | return 0; |
| 180 | } |
180 | } |
| 181 | 181 | ||
| 182 | 182 | ||