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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 885 | decky | 1 | /* |
| 2 | * Copyright (C) 2005 Martin Decky |
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| 3 | * All rights reserved. |
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| 4 | * |
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| 5 | * Redistribution and use in source and binary forms, with or without |
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| 6 | * modification, are permitted provided that the following conditions |
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| 7 | * are met: |
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| 8 | * |
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| 9 | * - Redistributions of source code must retain the above copyright |
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| 10 | * notice, this list of conditions and the following disclaimer. |
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| 11 | * - Redistributions in binary form must reproduce the above copyright |
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| 12 | * notice, this list of conditions and the following disclaimer in the |
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| 13 | * documentation and/or other materials provided with the distribution. |
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| 14 | * - The name of the author may not be used to endorse or promote products |
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| 15 | * derived from this software without specific prior written permission. |
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| 16 | * |
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 27 | */ |
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| 1789 | jermar | 28 | |
| 29 | /** |
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| 30 | * @file |
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| 31 | * @brief Architecture dependent parts of OpenFirmware interface. |
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| 32 | */ |
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| 33 | |||
| 34 | #include <ofwarch.h> |
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| 1764 | jermar | 35 | #include <ofw.h> |
| 36 | #include <printf.h> |
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| 1881 | jermar | 37 | #include <string.h> |
| 38 | #include "main.h" |
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| 885 | decky | 39 | |
| 1764 | jermar | 40 | void write(const char *str, const int len) |
| 885 | decky | 41 | { |
| 1773 | jermar | 42 | int i; |
| 43 | |||
| 44 | for (i = 0; i < len; i++) { |
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| 45 | if (str[i] == '\n') |
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| 46 | ofw_write("\r", 1); |
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| 47 | ofw_write(&str[i], 1); |
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| 48 | } |
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| 885 | decky | 49 | } |
| 1783 | jermar | 50 | |
| 51 | int ofw_translate_failed(ofw_arg_t flag) |
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| 52 | { |
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| 53 | return flag != -1; |
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| 54 | } |
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| 1789 | jermar | 55 | |
| 1899 | jermar | 56 | |
| 57 | #define ASI_UPA_CONFIG 0x4a |
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| 58 | #define UPA_CONFIG_MID_SHIFT 17 |
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| 59 | #define UPA_CONFIG_MID_MASK 0x1f |
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| 60 | |||
| 61 | int ofw_cpu(void) |
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| 1881 | jermar | 62 | { |
| 63 | char type_name[BUF_SIZE]; |
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| 64 | |||
| 65 | phandle node; |
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| 66 | node = ofw_get_child_node(ofw_root); |
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| 67 | if (node == 0 || node == -1) { |
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| 68 | printf("Could not find any child nodes of the root node.\n"); |
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| 1899 | jermar | 69 | return 0; |
| 1881 | jermar | 70 | } |
| 71 | |||
| 1899 | jermar | 72 | uint64_t current_mid; |
| 73 | |||
| 74 | __asm__ volatile ("ldxa [%1] %2, %0\n" : "=r" (current_mid) : "r" (0), "i" (ASI_UPA_CONFIG)); |
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| 75 | current_mid >>= UPA_CONFIG_MID_SHIFT; |
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| 76 | current_mid &= UPA_CONFIG_MID_MASK; |
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| 77 | |||
| 1881 | jermar | 78 | for (; node != 0 && node != -1; node = ofw_get_peer_node(node)) { |
| 79 | if (ofw_get_property(node, "device_type", type_name, sizeof(type_name)) > 0) { |
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| 1896 | jermar | 80 | if (strcmp(type_name, "cpu") == 0) { |
| 1899 | jermar | 81 | uint32_t mid; |
| 1881 | jermar | 82 | |
| 1899 | jermar | 83 | if (ofw_get_property(node, "upa-portid", &mid, sizeof(mid)) <= 0) |
| 1881 | jermar | 84 | continue; |
| 85 | |||
| 1899 | jermar | 86 | if (current_mid != mid) { |
| 87 | /* |
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| 88 | * Start secondary processor. |
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| 89 | */ |
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| 90 | (void) ofw_call("SUNW,start-cpu", 3, 1, NULL, node, KERNEL_VIRTUAL_ADDRESS, 0); |
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| 91 | } |
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| 1881 | jermar | 92 | } |
| 93 | } |
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| 1899 | jermar | 94 | } |
| 1881 | jermar | 95 | |
| 1899 | jermar | 96 | return 1; |
| 1881 | jermar | 97 | } |