Subversion Repositories HelenOS

Rev

Rev 3588 | Rev 4344 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
3578 vana 1
/*
2
 * Copyright (c) 2005 Jakub Vana
3
 * All rights reserved.
4
 *
5
 * Redistribution and use in source and binary forms, with or without
6
 * modification, are permitted provided that the following conditions
7
 * are met:
8
 *
9
 * - Redistributions of source code must retain the above copyright
10
 *   notice, this list of conditions and the following disclaimer.
11
 * - Redistributions in binary form must reproduce the above copyright
12
 *   notice, this list of conditions and the following disclaimer in the
13
 *   documentation and/or other materials provided with the distribution.
14
 * - The name of the author may not be used to endorse or promote products
15
 *   derived from this software without specific prior written permission.
16
 *
17
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
 */
28
 
29
/** @addtogroup ia64
30
 * @{
31
 */
32
/** @file
33
 */
34
 
35
#include <arch.h>
36
#include <arch/ski/ski.h>
37
#include <arch/drivers/it.h>
38
#include <arch/interrupt.h>
39
#include <arch/barrier.h>
40
#include <arch/asm.h>
41
#include <arch/register.h>
42
#include <arch/types.h>
43
#include <arch/context.h>
44
#include <arch/stack.h>
45
#include <arch/mm/page.h>
46
#include <mm/as.h>
47
#include <config.h>
48
#include <userspace.h>
49
#include <console/console.h>
50
#include <proc/uarg.h>
51
#include <syscall/syscall.h>
52
#include <ddi/irq.h>
53
#include <ddi/device.h>
54
#include <arch/drivers/ega.h>
55
#include <arch/bootinfo.h>
56
#include <genarch/kbd/i8042.h>
57
#include <genarch/kbd/ns16550.h>
58
#include <smp/smp.h>
59
#include <smp/ipi.h>
60
#include <arch/atomic.h>
61
#include <panic.h>
62
#include <print.h>
63
 
64
 
65
 
66
 
67
 
68
 
69
#ifdef CONFIG_SMP
70
 
71
 
72
extern char cpu_by_id_eid_list[256][256];
73
 
74
 
75
static void sapic_init(void)
76
{
77
    bootinfo->sapic=(unative_t *)(PA2KA((unative_t)(bootinfo->sapic))|FW_OFFSET);
78
}
79
 
80
 
81
 
82
static void ipi_broadcast_arch_all(int ipi )
83
{
84
    int id,eid;
85
    int myid,myeid;
86
 
87
    myid=ia64_get_cpu_id();
88
    myeid=ia64_get_cpu_eid();
89
 
90
 
91
    for(id=0;id<256;id++)
92
        for(eid=0;eid<256;eid++)
93
            if((id!=myid) || (eid!=myeid))
94
                ipi_send_ipi(id,eid,ipi);
95
}
96
 
97
void ipi_broadcast_arch(int ipi )
98
{
3674 svoboda 99
    int id,eid;
100
    int myid,myeid;
101
 
102
    myid=ia64_get_cpu_id();
103
    myeid=ia64_get_cpu_eid();
104
 
105
    //printf("Sending ipi %d on %d\n",ipi,CPU->id);
106
    for(id=0;id<256;id++)
107
        for(eid=0;eid<256;eid++)
108
            if((id!=myid) || (eid!=myeid))
109
                if(cpu_by_id_eid_list[id][eid])
110
                    ipi_send_ipi(id,eid,ipi);
111
 
3578 vana 112
}
113
 
114
 
115
void smp_init(void)
116
{
3674 svoboda 117
    if(!bootinfo->hello_configured) return;
118
    //If we have not system prepared by hello, we are not able to start AP's
119
    //this means we are running on simulator
120
 
3578 vana 121
    sapic_init();
122
    ipi_broadcast_arch_all(bootinfo->wakeup_intno);
123
    volatile long long brk;
124
        for(brk=0;brk<100LL*1024LL*1024LL;brk++); //wait a while before CPUs starts
125
 
126
    config.cpu_count=0;
127
    int id,eid;
128
 
129
    for(id=0;id<256;id++)
130
        for(eid=0;eid<256;eid++)
131
                if(cpu_by_id_eid_list[id][eid]==1){
132
                    config.cpu_count++;
133
                    cpu_by_id_eid_list[id][eid]=2;
134
 
135
            }
136
}
137
 
138
 
139
void kmp(void *arg __attribute__((unused)))
140
{
141
    int id,eid;
142
    int myid,myeid;
143
 
144
    myid=ia64_get_cpu_id();
145
    myeid=ia64_get_cpu_eid();
146
 
147
    for(id=0;id<256;id++)
148
        for(eid=0;eid<256;eid++)
149
                if((id!=myid) || (eid!=myeid))
150
                    if(cpu_by_id_eid_list[id][eid]!=0){
151
                        if(cpu_by_id_eid_list[id][eid]==1){
152
 
153
                            //config.cpu_count++;
154
                            //cpu_by_id_eid_list[id][eid]=2;
155
                            printf("Found Late CPU ID:%d EDI:%d Not added to system!!!\n",id,eid);
156
                            continue;
157
                            }
158
                    cpu_by_id_eid_list[id][eid]=3;
159
                    /*
160
                     * There may be just one AP being initialized at
161
                     * the time. After it comes completely up, it is
162
                     * supposed to wake us up.
163
                     */
164
                    if (waitq_sleep_timeout(&ap_completion_wq, 1000000,
165
                        SYNCH_FLAGS_NONE) == ESYNCH_TIMEOUT) {
166
                        printf("%s: waiting for cpu ID:%d EID:%d"
167
                            "timed out\n", __FUNCTION__,
168
                            id, eid);
169
                        }    
170
 
171
                }
172
}
173
#endif
174
 
175
 
176
/*This is just a hack for linking with assembler - may be removed in future*/
177
#ifndef CONFIG_SMP
178
void main_ap(void);
179
void main_ap(void)
180
{
181
    while(1);
182
}
183
 
184
#endif
185
 
186
/** @}
187
 */
188