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| Rev 1897 | Rev 1899 | ||
|---|---|---|---|
| Line 51... | Line 51... | ||
| 51 | int ofw_translate_failed(ofw_arg_t flag) |
51 | int ofw_translate_failed(ofw_arg_t flag) |
| 52 | { |
52 | { |
| 53 | return flag != -1; |
53 | return flag != -1; |
| 54 | } |
54 | } |
| 55 | 55 | ||
| - | 56 | ||
| - | 57 | #define ASI_UPA_CONFIG 0x4a |
|
| - | 58 | #define UPA_CONFIG_MID_SHIFT 17 |
|
| - | 59 | #define UPA_CONFIG_MID_MASK 0x1f |
|
| - | 60 | ||
| 56 | int ofw_cpu(cpu_t *cpu) |
61 | int ofw_cpu(void) |
| 57 | { |
62 | { |
| 58 | char type_name[BUF_SIZE]; |
63 | char type_name[BUF_SIZE]; |
| 59 | 64 | ||
| 60 | phandle node; |
65 | phandle node; |
| 61 | node = ofw_get_child_node(ofw_root); |
66 | node = ofw_get_child_node(ofw_root); |
| 62 | if (node == 0 || node == -1) { |
67 | if (node == 0 || node == -1) { |
| 63 | printf("Could not find any child nodes of the root node.\n"); |
68 | printf("Could not find any child nodes of the root node.\n"); |
| 64 | return; |
69 | return 0; |
| 65 | } |
70 | } |
| 66 | 71 | ||
| - | 72 | uint64_t current_mid; |
|
| - | 73 | ||
| - | 74 | __asm__ volatile ("ldxa [%1] %2, %0\n" : "=r" (current_mid) : "r" (0), "i" (ASI_UPA_CONFIG)); |
|
| - | 75 | current_mid >>= UPA_CONFIG_MID_SHIFT; |
|
| - | 76 | current_mid &= UPA_CONFIG_MID_MASK; |
|
| - | 77 | ||
| 67 | for (; node != 0 && node != -1; node = ofw_get_peer_node(node)) { |
78 | for (; node != 0 && node != -1; node = ofw_get_peer_node(node)) { |
| 68 | if (ofw_get_property(node, "device_type", type_name, sizeof(type_name)) > 0) { |
79 | if (ofw_get_property(node, "device_type", type_name, sizeof(type_name)) > 0) { |
| 69 | if (strcmp(type_name, "cpu") == 0) { |
80 | if (strcmp(type_name, "cpu") == 0) { |
| 70 | uint32_t mhz; |
81 | uint32_t mid; |
| 71 | 82 | ||
| 72 | if (ofw_get_property(node, "clock-frequency", &mhz, sizeof(mhz)) <= 0) |
83 | if (ofw_get_property(node, "upa-portid", &mid, sizeof(mid)) <= 0) |
| 73 | continue; |
84 | continue; |
| 74 | 85 | ||
| 75 | cpu->clock_frequency = mhz; |
86 | if (current_mid != mid) { |
| - | 87 | /* |
|
| - | 88 | * Start secondary processor. |
|
| 76 | return 1; |
89 | */ |
| - | 90 | (void) ofw_call("SUNW,start-cpu", 3, 1, NULL, node, KERNEL_VIRTUAL_ADDRESS, 0); |
|
| - | 91 | } |
|
| 77 | } |
92 | } |
| 78 | } |
93 | } |
| 79 | }; |
94 | } |
| 80 | 95 | ||
| 81 | return 0; |
96 | return 1; |
| 82 | } |
97 | } |