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| Rev | Author | Line No. | Line |
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| 885 | decky | 1 | /* |
| 2071 | jermar | 2 | * Copyright (c) 2005 Martin Decky |
| 3 | * Copyright (c) 2006 Jakub Jermar |
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| 885 | decky | 4 | * All rights reserved. |
| 5 | * |
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| 6 | * Redistribution and use in source and binary forms, with or without |
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| 7 | * modification, are permitted provided that the following conditions |
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| 8 | * are met: |
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| 9 | * |
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| 10 | * - Redistributions of source code must retain the above copyright |
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| 11 | * notice, this list of conditions and the following disclaimer. |
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| 12 | * - Redistributions in binary form must reproduce the above copyright |
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| 13 | * notice, this list of conditions and the following disclaimer in the |
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| 14 | * documentation and/or other materials provided with the distribution. |
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| 15 | * - The name of the author may not be used to endorse or promote products |
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| 16 | * derived from this software without specific prior written permission. |
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| 17 | * |
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| 18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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| 19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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| 20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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| 21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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| 22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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| 23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| 24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| 25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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| 27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 28 | */ |
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| 1789 | jermar | 29 | |
| 30 | /** |
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| 31 | * @file |
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| 32 | * @brief Architecture dependent parts of OpenFirmware interface. |
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| 33 | */ |
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| 34 | |||
| 35 | #include <ofwarch.h> |
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| 1764 | jermar | 36 | #include <ofw.h> |
| 37 | #include <printf.h> |
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| 1881 | jermar | 38 | #include <string.h> |
| 1903 | jermar | 39 | #include <register.h> |
| 1881 | jermar | 40 | #include "main.h" |
| 1978 | jermar | 41 | #include "asm.h" |
| 885 | decky | 42 | |
| 1764 | jermar | 43 | void write(const char *str, const int len) |
| 885 | decky | 44 | { |
| 1773 | jermar | 45 | int i; |
| 46 | |||
| 47 | for (i = 0; i < len; i++) { |
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| 48 | if (str[i] == '\n') |
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| 49 | ofw_write("\r", 1); |
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| 50 | ofw_write(&str[i], 1); |
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| 51 | } |
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| 885 | decky | 52 | } |
| 1783 | jermar | 53 | |
| 54 | int ofw_translate_failed(ofw_arg_t flag) |
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| 55 | { |
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| 56 | return flag != -1; |
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| 57 | } |
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| 1789 | jermar | 58 | |
| 1899 | jermar | 59 | int ofw_cpu(void) |
| 1881 | jermar | 60 | { |
| 61 | char type_name[BUF_SIZE]; |
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| 62 | |||
| 63 | phandle node; |
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| 64 | node = ofw_get_child_node(ofw_root); |
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| 65 | if (node == 0 || node == -1) { |
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| 66 | printf("Could not find any child nodes of the root node.\n"); |
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| 1899 | jermar | 67 | return 0; |
| 1881 | jermar | 68 | } |
| 69 | |||
| 1899 | jermar | 70 | uint64_t current_mid; |
| 71 | |||
| 3146 | jermar | 72 | asm volatile ("ldxa [%1] %2, %0\n" |
| 73 | : "=r" (current_mid) |
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| 74 | : "r" (0), "i" (ASI_UPA_CONFIG)); |
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| 1899 | jermar | 75 | current_mid >>= UPA_CONFIG_MID_SHIFT; |
| 76 | current_mid &= UPA_CONFIG_MID_MASK; |
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| 1903 | jermar | 77 | |
| 78 | int cpus; |
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| 1899 | jermar | 79 | |
| 3146 | jermar | 80 | for (cpus = 0; node != 0 && node != -1; node = ofw_get_peer_node(node), |
| 81 | cpus++) { |
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| 82 | if (ofw_get_property(node, "device_type", type_name, |
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| 83 | sizeof(type_name)) > 0) { |
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| 1896 | jermar | 84 | if (strcmp(type_name, "cpu") == 0) { |
| 1899 | jermar | 85 | uint32_t mid; |
| 1881 | jermar | 86 | |
| 3146 | jermar | 87 | if (ofw_get_property(node, "upa-portid", &mid, |
| 88 | sizeof(mid)) <= 0) |
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| 1881 | jermar | 89 | continue; |
| 90 | |||
| 1899 | jermar | 91 | if (current_mid != mid) { |
| 92 | /* |
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| 93 | * Start secondary processor. |
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| 94 | */ |
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| 3146 | jermar | 95 | (void) ofw_call("SUNW,start-cpu", 3, 1, |
| 96 | NULL, node, KERNEL_VIRTUAL_ADDRESS, |
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| 97 | bootinfo.physmem_start | |
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| 98 | AP_PROCESSOR); |
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| 1899 | jermar | 99 | } |
| 1881 | jermar | 100 | } |
| 101 | } |
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| 1899 | jermar | 102 | } |
| 1881 | jermar | 103 | |
| 1903 | jermar | 104 | return cpus; |
| 1881 | jermar | 105 | } |
| 1978 | jermar | 106 | |
| 107 | /** Get physical memory starting address. |
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| 108 | * |
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| 109 | * @param start Pointer to variable where the physical memory starting |
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| 110 | * address will be stored. |
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| 111 | * |
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| 112 | * @return Non-zero on succes, zero on failure. |
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| 113 | */ |
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| 114 | int ofw_get_physmem_start(uintptr_t *start) |
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| 115 | { |
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| 116 | uint32_t memreg[4]; |
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| 117 | |||
| 118 | if (ofw_get_property(ofw_memory, "reg", &memreg, sizeof(memreg)) <= 0) |
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| 119 | return 0; |
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| 120 | |||
| 121 | *start = (((uint64_t) memreg[0]) << 32) | memreg[1]; |
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| 122 | return 1; |
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| 123 | } |
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| 124 |