| 53,7 → 53,12 |
|---|
| return flag != -1; |
| } |
| |
| int ofw_cpu(cpu_t *cpu) |
| |
| #define ASI_UPA_CONFIG 0x4a |
| #define UPA_CONFIG_MID_SHIFT 17 |
| #define UPA_CONFIG_MID_MASK 0x1f |
| |
| int ofw_cpu(void) |
| { |
| char type_name[BUF_SIZE]; |
| |
| 61,22 → 66,32 |
|---|
| node = ofw_get_child_node(ofw_root); |
| if (node == 0 || node == -1) { |
| printf("Could not find any child nodes of the root node.\n"); |
| return; |
| return 0; |
| } |
| |
| uint64_t current_mid; |
| |
| __asm__ volatile ("ldxa [%1] %2, %0\n" : "=r" (current_mid) : "r" (0), "i" (ASI_UPA_CONFIG)); |
| current_mid >>= UPA_CONFIG_MID_SHIFT; |
| current_mid &= UPA_CONFIG_MID_MASK; |
| |
| for (; node != 0 && node != -1; node = ofw_get_peer_node(node)) { |
| if (ofw_get_property(node, "device_type", type_name, sizeof(type_name)) > 0) { |
| if (strcmp(type_name, "cpu") == 0) { |
| uint32_t mhz; |
| uint32_t mid; |
| |
| if (ofw_get_property(node, "clock-frequency", &mhz, sizeof(mhz)) <= 0) |
| if (ofw_get_property(node, "upa-portid", &mid, sizeof(mid)) <= 0) |
| continue; |
| |
| cpu->clock_frequency = mhz; |
| return 1; |
| if (current_mid != mid) { |
| /* |
| * Start secondary processor. |
| */ |
| (void) ofw_call("SUNW,start-cpu", 3, 1, NULL, node, KERNEL_VIRTUAL_ADDRESS, 0); |
| } |
| } |
| } |
| }; |
| } |
| |
| return 0; |
| return 1; |
| } |