| 29,6 → 29,10 |
|---|
| #include <arch.h> |
| #include <arch/cp0.h> |
| #include <arch/exception.h> |
| #include <arch/asm/regname.h> |
| #include <arch/asm.h> |
| #include <mm/vm.h> |
| #include <userspace.h> |
| |
| void arch_pre_mm_init(void) |
| { |
| 57,3 → 61,27 |
|---|
| void arch_late_init(void) |
| { |
| } |
| |
| void userspace(void) |
| { |
| /* EXL=1, UM=1, IE=1 */ |
| cp0_status_write(cp0_status_read() | (cp0_status_exl_exception_bit | |
| cp0_status_um_bit | |
| cp0_status_ie_enabled_bit)); |
| |
| cp0_epc_write(UTEXT_ADDRESS); |
| userspace_asm(USTACK_ADDRESS+PAGE_SIZE); |
| while (1) |
| ; |
| } |
| |
| /* Stack pointer saved when entering user mode */ |
| /* TODO: How do we do it on SMP system???? */ |
| __address supervisor_sp; |
| |
| void before_thread_runs_arch(void) |
| { |
| supervisor_sp = (__address) &THREAD->kstack[THREAD_STACK_SIZE-SP_DELTA]; |
| } |
| |
| |