Rev 2071 | Rev 3146 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 885 | decky | 1 | /* |
| 2071 | jermar | 2 | * Copyright (c) 2005 Martin Decky |
| 3 | * Copyright (c) 2006 Jakub Jermar |
||
| 885 | decky | 4 | * All rights reserved. |
| 5 | * |
||
| 6 | * Redistribution and use in source and binary forms, with or without |
||
| 7 | * modification, are permitted provided that the following conditions |
||
| 8 | * are met: |
||
| 9 | * |
||
| 10 | * - Redistributions of source code must retain the above copyright |
||
| 11 | * notice, this list of conditions and the following disclaimer. |
||
| 12 | * - Redistributions in binary form must reproduce the above copyright |
||
| 13 | * notice, this list of conditions and the following disclaimer in the |
||
| 14 | * documentation and/or other materials provided with the distribution. |
||
| 15 | * - The name of the author may not be used to endorse or promote products |
||
| 16 | * derived from this software without specific prior written permission. |
||
| 17 | * |
||
| 18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
||
| 19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
||
| 20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
||
| 21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
||
| 22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
||
| 23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
||
| 24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
||
| 25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
||
| 26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
||
| 27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
||
| 28 | */ |
||
| 1789 | jermar | 29 | |
| 30 | /** |
||
| 31 | * @file |
||
| 32 | * @brief Architecture dependent parts of OpenFirmware interface. |
||
| 33 | */ |
||
| 34 | |||
| 35 | #include <ofwarch.h> |
||
| 1764 | jermar | 36 | #include <ofw.h> |
| 37 | #include <printf.h> |
||
| 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++) { |
||
| 48 | if (str[i] == '\n') |
||
| 49 | ofw_write("\r", 1); |
||
| 50 | ofw_write(&str[i], 1); |
||
| 51 | } |
||
| 885 | decky | 52 | } |
| 1783 | jermar | 53 | |
| 54 | int ofw_translate_failed(ofw_arg_t flag) |
||
| 55 | { |
||
| 56 | return flag != -1; |
||
| 57 | } |
||
| 1789 | jermar | 58 | |
| 1899 | jermar | 59 | int ofw_cpu(void) |
| 1881 | jermar | 60 | { |
| 61 | char type_name[BUF_SIZE]; |
||
| 62 | |||
| 63 | phandle node; |
||
| 64 | node = ofw_get_child_node(ofw_root); |
||
| 65 | if (node == 0 || node == -1) { |
||
| 66 | printf("Could not find any child nodes of the root node.\n"); |
||
| 1899 | jermar | 67 | return 0; |
| 1881 | jermar | 68 | } |
| 69 | |||
| 1899 | jermar | 70 | uint64_t current_mid; |
| 71 | |||
| 2082 | decky | 72 | asm volatile ("ldxa [%1] %2, %0\n" : "=r" (current_mid) : "r" (0), "i" (ASI_UPA_CONFIG)); |
| 1899 | jermar | 73 | current_mid >>= UPA_CONFIG_MID_SHIFT; |
| 74 | current_mid &= UPA_CONFIG_MID_MASK; |
||
| 1903 | jermar | 75 | |
| 76 | int cpus; |
||
| 1899 | jermar | 77 | |
| 1903 | jermar | 78 | for (cpus = 0; node != 0 && node != -1; node = ofw_get_peer_node(node), cpus++) { |
| 1881 | jermar | 79 | if (ofw_get_property(node, "device_type", type_name, sizeof(type_name)) > 0) { |
| 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 | /* |
||
| 88 | * Start secondary processor. |
||
| 89 | */ |
||
| 1978 | jermar | 90 | (void) ofw_call("SUNW,start-cpu", 3, 1, NULL, node, |
| 91 | KERNEL_VIRTUAL_ADDRESS, |
||
| 92 | bootinfo.physmem_start | AP_PROCESSOR); |
||
| 1899 | jermar | 93 | } |
| 1881 | jermar | 94 | } |
| 95 | } |
||
| 1899 | jermar | 96 | } |
| 1881 | jermar | 97 | |
| 1903 | jermar | 98 | return cpus; |
| 1881 | jermar | 99 | } |
| 1978 | jermar | 100 | |
| 101 | /** Get physical memory starting address. |
||
| 102 | * |
||
| 103 | * @param start Pointer to variable where the physical memory starting |
||
| 104 | * address will be stored. |
||
| 105 | * |
||
| 106 | * @return Non-zero on succes, zero on failure. |
||
| 107 | */ |
||
| 108 | int ofw_get_physmem_start(uintptr_t *start) |
||
| 109 | { |
||
| 110 | uint32_t memreg[4]; |
||
| 111 | |||
| 112 | if (ofw_get_property(ofw_memory, "reg", &memreg, sizeof(memreg)) <= 0) |
||
| 113 | return 0; |
||
| 114 | |||
| 115 | *start = (((uint64_t) memreg[0]) << 32) | memreg[1]; |
||
| 116 | return 1; |
||
| 117 | } |
||
| 118 |