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| Rev | Author | Line No. | Line |
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| 3578 | vana | 1 | /* |
| 2 | * Copyright (c) 2005 Jakub Vana |
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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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| 28 | |||
| 29 | /** @addtogroup ia64 |
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| 30 | * @{ |
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| 31 | */ |
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| 32 | /** @file |
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| 33 | */ |
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| 34 | |||
| 35 | #include <arch.h> |
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| 36 | #include <arch/ski/ski.h> |
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| 37 | #include <arch/drivers/it.h> |
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| 38 | #include <arch/interrupt.h> |
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| 39 | #include <arch/barrier.h> |
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| 40 | #include <arch/asm.h> |
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| 41 | #include <arch/register.h> |
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| 42 | #include <arch/types.h> |
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| 43 | #include <arch/context.h> |
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| 44 | #include <arch/stack.h> |
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| 45 | #include <arch/mm/page.h> |
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| 46 | #include <mm/as.h> |
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| 47 | #include <config.h> |
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| 48 | #include <userspace.h> |
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| 49 | #include <console/console.h> |
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| 50 | #include <proc/uarg.h> |
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| 51 | #include <syscall/syscall.h> |
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| 52 | #include <ddi/irq.h> |
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| 53 | #include <ddi/device.h> |
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| 54 | #include <arch/drivers/ega.h> |
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| 55 | #include <arch/bootinfo.h> |
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| 56 | #include <genarch/kbd/i8042.h> |
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| 57 | #include <genarch/kbd/ns16550.h> |
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| 58 | #include <smp/smp.h> |
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| 59 | #include <smp/ipi.h> |
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| 60 | #include <arch/atomic.h> |
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| 61 | #include <panic.h> |
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| 62 | #include <print.h> |
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| 63 | |||
| 64 | |||
| 65 | |||
| 66 | |||
| 67 | |||
| 68 | |||
| 69 | #ifdef CONFIG_SMP |
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| 70 | |||
| 71 | |||
| 72 | extern char cpu_by_id_eid_list[256][256]; |
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| 73 | |||
| 74 | |||
| 75 | static void sapic_init(void) |
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| 76 | { |
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| 77 | bootinfo->sapic=(unative_t *)(PA2KA((unative_t)(bootinfo->sapic))|FW_OFFSET); |
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| 78 | } |
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| 79 | |||
| 80 | |||
| 81 | |||
| 82 | static void ipi_broadcast_arch_all(int ipi ) |
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| 83 | { |
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| 84 | int id,eid; |
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| 85 | int myid,myeid; |
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| 86 | |||
| 87 | myid=ia64_get_cpu_id(); |
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| 88 | myeid=ia64_get_cpu_eid(); |
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| 89 | |||
| 90 | |||
| 91 | for(id=0;id<256;id++) |
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| 92 | for(eid=0;eid<256;eid++) |
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| 93 | if((id!=myid) || (eid!=myeid)) |
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| 94 | ipi_send_ipi(id,eid,ipi); |
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| 95 | } |
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| 96 | |||
| 97 | void ipi_broadcast_arch(int ipi ) |
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| 98 | { |
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| 3626 | vana | 99 | int id,eid; |
| 100 | int myid,myeid; |
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| 101 | |||
| 102 | myid=ia64_get_cpu_id(); |
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| 103 | myeid=ia64_get_cpu_eid(); |
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| 104 | |||
| 105 | for(id=0;id<256;id++) |
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| 106 | for(eid=0;eid<256;eid++) |
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| 107 | if((id!=myid) || (eid!=myeid)) |
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| 108 | if(cpu_by_id_eid_list[id][eid]) |
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| 109 | ipi_send_ipi(id,eid,ipi); |
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| 110 | |||
| 3578 | vana | 111 | } |
| 112 | |||
| 113 | |||
| 114 | void smp_init(void) |
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| 115 | { |
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| 3661 | vana | 116 | if(!bootinfo->hello_configured) return; |
| 117 | //If we have not system prepared by hello, we are not able to start AP's |
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| 118 | //this means we are running on simulator |
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| 119 | |||
| 3578 | vana | 120 | sapic_init(); |
| 121 | ipi_broadcast_arch_all(bootinfo->wakeup_intno); |
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| 122 | volatile long long brk; |
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| 123 | for(brk=0;brk<100LL*1024LL*1024LL;brk++); //wait a while before CPUs starts |
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| 124 | |||
| 125 | config.cpu_count=0; |
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| 126 | int id,eid; |
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| 127 | |||
| 128 | for(id=0;id<256;id++) |
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| 129 | for(eid=0;eid<256;eid++) |
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| 130 | if(cpu_by_id_eid_list[id][eid]==1){ |
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| 131 | config.cpu_count++; |
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| 132 | cpu_by_id_eid_list[id][eid]=2; |
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| 133 | |||
| 134 | } |
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| 135 | } |
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| 136 | |||
| 137 | |||
| 138 | void kmp(void *arg __attribute__((unused))) |
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| 139 | { |
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| 140 | int id,eid; |
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| 141 | int myid,myeid; |
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| 142 | |||
| 143 | myid=ia64_get_cpu_id(); |
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| 144 | myeid=ia64_get_cpu_eid(); |
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| 145 | |||
| 146 | for(id=0;id<256;id++) |
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| 147 | for(eid=0;eid<256;eid++) |
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| 148 | if((id!=myid) || (eid!=myeid)) |
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| 149 | if(cpu_by_id_eid_list[id][eid]!=0){ |
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| 150 | if(cpu_by_id_eid_list[id][eid]==1){ |
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| 151 | printf("Found Late CPU ID:%d EDI:%d Not added to system!!!\n",id,eid); |
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| 152 | continue; |
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| 153 | } |
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| 154 | cpu_by_id_eid_list[id][eid]=3; |
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| 155 | /* |
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| 156 | * There may be just one AP being initialized at |
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| 157 | * the time. After it comes completely up, it is |
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| 158 | * supposed to wake us up. |
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| 159 | */ |
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| 160 | if (waitq_sleep_timeout(&ap_completion_wq, 1000000, |
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| 161 | SYNCH_FLAGS_NONE) == ESYNCH_TIMEOUT) { |
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| 162 | printf("%s: waiting for cpu ID:%d EID:%d" |
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| 163 | "timed out\n", __FUNCTION__, |
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| 164 | id, eid); |
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| 165 | } |
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| 166 | |||
| 167 | } |
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| 168 | } |
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| 169 | #endif |
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| 170 | |||
| 171 | |||
| 172 | /*This is just a hack for linking with assembler - may be removed in future*/ |
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| 173 | #ifndef CONFIG_SMP |
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| 174 | void main_ap(void); |
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| 175 | void main_ap(void) |
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| 176 | { |
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| 177 | while(1); |
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| 178 | } |
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| 179 | |||
| 180 | #endif |
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| 181 | |||
| 182 | /** @} |
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| 183 | */ |
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| 184 |