| 35,6 → 35,7 |
|---|
| #include <userspace.h> |
| #include <arch/console.h> |
| #include <memstr.h> |
| #include <arch/interrupt.h> |
| |
| /* Size of the code jumping to the exception handler code |
| * - J+NOP |
| 47,14 → 48,17 |
|---|
| |
| #include <arch/debug.h> |
| |
| #include <print.h> |
| void arch_pre_mm_init(void) |
| { |
| /* It is not assumed by default */ |
| cpu_priority_high(); |
| |
| /* Copy the exception vectors to the right places */ |
| memcpy(TLB_EXC, (char *)tlb_refill_entry, EXCEPTION_JUMP_SIZE); |
| memcpy(NORM_EXC, (char *)exception_entry, EXCEPTION_JUMP_SIZE); |
| memcpy(CACHE_EXC, (char *)cache_error_entry, EXCEPTION_JUMP_SIZE); |
| |
| |
| /* |
| * Switch to BEV normal level so that exception vectors point to the kernel. |
| * Clear the error level. |
| 61,10 → 65,14 |
|---|
| */ |
| cp0_status_write(cp0_status_read() & ~(cp0_status_bev_bootstrap_bit|cp0_status_erl_error_bit)); |
| |
| /* |
| * Mask all interrupts |
| */ |
| cp0_mask_all_int(); |
| /* |
| * Unmask hardware clock interrupt. |
| */ |
| cp0_status_write(cp0_status_read() | (1<<cp0_status_im7_shift)); |
| cp0_unmask_int(TIMER_INTERRUPT); |
| |
| /* |
| * Start hardware clock. |