| 40,6 → 40,9 |
|---|
| #include <genarch/ofw/ofw_tree.h> |
| #include <arch/types.h> |
| #include <arch/drivers/tick.h> |
| #include <arch/mm/page.h> |
| #include <arch/mm/tlb.h> |
| #include <macros.h> |
| |
| /** Perform sparc64 specific initialization of the processor structure for the current processor. */ |
| void cpu_arch_init(void) |
| 52,6 → 55,9 |
|---|
| upa_config.value = upa_config_read(); |
| CPU->arch.mid = upa_config.mid; |
| |
| /* |
| * Detect processor frequency. |
| */ |
| node = ofw_tree_find_child_by_device_type(ofw_tree_lookup("/"), "cpu"); |
| while (node) { |
| ofw_tree_property_t *prop; |
| 70,6 → 76,22 |
|---|
| |
| CPU->arch.clock_frequency = clock_frequency; |
| tick_init(); |
| |
| /* |
| * Lock CPU stack in DTLB. |
| */ |
| uintptr_t base = ALIGN_DOWN(config.base, 1<<KERNEL_PAGE_WIDTH); |
| |
| if (!overlaps((uintptr_t) CPU->stack, PAGE_SIZE, base, (1<<KERNEL_PAGE_WIDTH))) { |
| /* |
| * Kernel stack of this processor is not locked in DTLB. |
| * First, demap any already existing mappings. |
| * Second, create a locked mapping for it. |
| */ |
| dtlb_demap(TLB_DEMAP_PAGE, TLB_DEMAP_NUCLEUS, (uintptr_t) CPU->stack); |
| dtlb_insert_mapping((uintptr_t) CPU->stack, KA2PA(CPU->stack), PAGESIZE_8K, true, true); |
| } |
| |
| } |
| |
| /** Read version information from the current processor. */ |