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36 jermar 1
/*
2071 jermar 2
 * Copyright (c) 2005 Jakub Jermar
36 jermar 3
 * All rights reserved.
4
 *
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 * Redistribution and use in source and binary forms, with or without
6
 * modification, are permitted provided that the following conditions
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 * are met:
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 *
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 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
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 *   notice, this list of conditions and the following disclaimer in the
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 *   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.
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 *
17
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
 */
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1888 jermar 29
/** @addtogroup ia64
1702 cejka 30
 * @{
31
 */
32
/** @file
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 */
34
 
78 jermar 35
#include <arch.h>
36
#include <arch/ski/ski.h>
435 jermar 37
#include <arch/drivers/it.h>
470 jermar 38
#include <arch/interrupt.h>
39
#include <arch/barrier.h>
919 jermar 40
#include <arch/asm.h>
41
#include <arch/register.h>
470 jermar 42
#include <arch/types.h>
919 jermar 43
#include <arch/context.h>
962 jermar 44
#include <arch/stack.h>
919 jermar 45
#include <arch/mm/page.h>
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#include <mm/as.h>
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#include <config.h>
48
#include <userspace.h>
519 vana 49
#include <console/console.h>
1078 jermar 50
#include <proc/uarg.h>
1121 jermar 51
#include <syscall/syscall.h>
1942 jermar 52
#include <ddi/irq.h>
2513 vana 53
#include <ddi/device.h>
2110 jermar 54
#include <arch/drivers/ega.h>
2513 vana 55
#include <arch/bootinfo.h>
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#include <genarch/kbd/i8042.h>
3578 vana 57
#include <genarch/kbd/ns16550.h>
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#include <smp/smp.h>
59
#include <smp/ipi.h>
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#include <arch/atomic.h>
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#include <panic.h>
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#include <print.h>
3635 vana 63
#include <sysinfo/sysinfo.h>
519 vana 64
 
3578 vana 65
/*NS16550 as a COM 1*/
3657 vana 66
#define NS16550_IRQ (4+LAGACY_INTERRUPT_BASE)
3578 vana 67
#define NS16550_PORT 0x3f8
68
 
2513 vana 69
bootinfo_t *bootinfo;
70
 
3657 vana 71
static uint64_t iosapic_base=0xfec00000;
72
 
1223 jermar 73
void arch_pre_main(void)
74
{
75
    /* Setup usermode init tasks. */
2513 vana 76
 
2519 vana 77
//#ifdef I460GX
2745 decky 78
    unsigned int i;
79
 
2513 vana 80
    init.cnt = bootinfo->taskmap.count;
2745 decky 81
 
82
    for (i = 0; i < init.cnt; i++) {
83
        init.tasks[i].addr = ((unsigned long) bootinfo->taskmap.tasks[i].addr) | VRN_MASK;
84
        init.tasks[i].size = bootinfo->taskmap.tasks[i].size;
2513 vana 85
    }
2519 vana 86
/*
2513 vana 87
#else  
1601 jermar 88
    init.cnt = 8;
1223 jermar 89
    init.tasks[0].addr = INIT0_ADDRESS;
90
    init.tasks[0].size = INIT0_SIZE;
1495 jermar 91
    init.tasks[1].addr = INIT0_ADDRESS + 0x400000;
92
    init.tasks[1].size = INIT0_SIZE;
93
    init.tasks[2].addr = INIT0_ADDRESS + 0x800000;
94
    init.tasks[2].size = INIT0_SIZE;
95
    init.tasks[3].addr = INIT0_ADDRESS + 0xc00000;
96
    init.tasks[3].size = INIT0_SIZE;
97
    init.tasks[4].addr = INIT0_ADDRESS + 0x1000000;
98
    init.tasks[4].size = INIT0_SIZE;
1541 jermar 99
    init.tasks[5].addr = INIT0_ADDRESS + 0x1400000;
100
    init.tasks[5].size = INIT0_SIZE;
1601 jermar 101
    init.tasks[6].addr = INIT0_ADDRESS + 0x1800000;
102
    init.tasks[6].size = INIT0_SIZE;
103
    init.tasks[7].addr = INIT0_ADDRESS + 0x1c00000;
104
    init.tasks[7].size = INIT0_SIZE;
2519 vana 105
#endif*/
1223 jermar 106
}
107
 
78 jermar 108
void arch_pre_mm_init(void)
109
{
470 jermar 110
    /* Set Interruption Vector Address (i.e. location of interruption vector table). */
1780 jermar 111
    iva_write((uintptr_t) &ivt);
470 jermar 112
    srlz_d();
113
 
78 jermar 114
}
115
 
3657 vana 116
static void iosapic_init(void)
117
{
118
 
119
    uint64_t IOSAPIC = PA2KA((unative_t)(iosapic_base))|FW_OFFSET;
120
    int i;
121
 
3661 vana 122
    int myid,myeid;
3657 vana 123
 
3661 vana 124
    myid=ia64_get_cpu_id();
125
    myeid=ia64_get_cpu_eid();
126
 
3657 vana 127
    for(i=0;i<16;i++)
128
    {
129
 
130
        if(i==2) continue;   //Disable Cascade interrupt
131
        ((uint32_t*)(IOSAPIC+0x00))[0]=0x10+2*i;
132
        srlz_d();
133
        ((uint32_t*)(IOSAPIC+0x10))[0]=LAGACY_INTERRUPT_BASE+i;
134
        srlz_d();
135
        ((uint32_t*)(IOSAPIC+0x00))[0]=0x10+2*i+1;
136
        srlz_d();
3661 vana 137
        ((uint32_t*)(IOSAPIC+0x10))[0]=myid<<(56-32) | myeid<<(48-32);
3657 vana 138
        srlz_d();
139
    }
140
 
141
}
142
 
143
 
78 jermar 144
void arch_post_mm_init(void)
145
{
3578 vana 146
    if(config.cpu_active==1)
147
    {
3657 vana 148
        iosapic_init();
149
 
3578 vana 150
        irq_init(INR_COUNT, INR_COUNT);
2064 vana 151
#ifdef SKI
3578 vana 152
        ski_init_console();
2064 vana 153
#else   
3578 vana 154
        ega_init();
2064 vana 155
#endif  
3578 vana 156
    }
3657 vana 157
    it_init();
158
 
78 jermar 159
}
503 jermar 160
 
1901 jermar 161
void arch_post_cpu_init(void)
162
{
163
}
164
 
503 jermar 165
void arch_pre_smp_init(void)
166
{
167
}
168
 
2513 vana 169
 
170
#ifdef I460GX
171
#define POLL_INTERVAL       50000       /* 50 ms */
172
/** Kernel thread for polling keyboard. */
173
static void i8042_kkbdpoll(void *arg)
174
{
175
    while (1) {
3578 vana 176
#ifdef CONFIG_NS16550
3657 vana 177
    #ifndef CONFIG_NS16550_INTERRUPT_DRIVEN
3578 vana 178
        ns16550_poll();
3657 vana 179
    #endif  
3661 vana 180
#else
181
    #ifndef CONFIG_I8042_INTERRUPT_DRIVEN
182
        i8042_poll();
183
    #endif  
3578 vana 184
#endif
2513 vana 185
        thread_usleep(POLL_INTERVAL);
186
    }
187
}
188
#endif
189
 
3657 vana 190
 
3661 vana 191
void end_of_irq_void(void *cir_arg __attribute__((unused)),inr_t inr __attribute__((unused)));
192
void end_of_irq_void(void *cir_arg __attribute__((unused)),inr_t inr __attribute__((unused)))
3657 vana 193
{
194
    return;
195
}
196
 
197
 
503 jermar 198
void arch_post_smp_init(void)
199
{
1945 jermar 200
 
3578 vana 201
    {
1945 jermar 202
        /*
203
         * Create thread that polls keyboard.
204
         */
2064 vana 205
#ifdef SKI
206
        thread_t *t;
207
        t = thread_create(kkbdpoll, NULL, TASK, 0, "kkbdpoll", true);
1945 jermar 208
        if (!t)
209
            panic("cannot create kkbdpoll\n");
210
        thread_ready(t);
2064 vana 211
#endif      
2513 vana 212
 
213
#ifdef I460GX
214
        devno_t kbd = device_assign_devno();
215
        /* keyboard controller */
216
 
3578 vana 217
#ifdef CONFIG_NS16550
3659 vana 218
        ns16550_init(kbd, NS16550_PORT, NS16550_IRQ,end_of_irq_void,NULL); // as a COM 1
3578 vana 219
#else
3661 vana 220
        devno_t mouse = device_assign_devno();
221
        i8042_init(kbd, IRQ_KBD, mouse, IRQ_MOUSE);
3578 vana 222
#endif
2513 vana 223
        thread_t *t;
224
        t = thread_create(i8042_kkbdpoll, NULL, TASK, 0, "kkbdpoll", true);
225
        if (!t)
226
            panic("cannot create kkbdpoll\n");
227
        thread_ready(t);
228
 
229
#endif
230
 
1945 jermar 231
    }
3635 vana 232
 
233
    sysinfo_set_item_val("ia64_iospace", NULL, true);
234
    sysinfo_set_item_val("ia64_iospace.address", NULL, true);
235
    sysinfo_set_item_val("ia64_iospace.address.virtual", NULL, IO_OFFSET);
236
 
3657 vana 237
 
238
 
239
 
240
 
503 jermar 241
}
919 jermar 242
 
3578 vana 243
 
919 jermar 244
/** Enter userspace and never return. */
1078 jermar 245
void userspace(uspace_arg_t *kernel_uarg)
919 jermar 246
{
247
    psr_t psr;
248
    rsc_t rsc;
249
 
250
    psr.value = psr_read();
251
    psr.cpl = PL_USER;
252
    psr.i = true;               /* start with interrupts enabled */
253
    psr.ic = true;
254
    psr.ri = 0;             /* start with instruction #0 */
993 jermar 255
    psr.bn = 1;             /* start in bank 0 */
919 jermar 256
 
2082 decky 257
    asm volatile ("mov %0 = ar.rsc\n" : "=r" (rsc.value));
919 jermar 258
    rsc.loadrs = 0;
259
    rsc.be = false;
260
    rsc.pl = PL_USER;
261
    rsc.mode = 3;               /* eager mode */
262
 
1780 jermar 263
    switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry,
264
                ((uintptr_t) kernel_uarg->uspace_stack)+PAGE_SIZE-ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT),
265
                ((uintptr_t) kernel_uarg->uspace_stack)+PAGE_SIZE,
266
                (uintptr_t) kernel_uarg->uspace_uarg,
1078 jermar 267
                psr.value, rsc.value);
919 jermar 268
 
269
    while (1) {
270
        ;
271
    }
272
}
1121 jermar 273
 
274
/** Set thread-local-storage pointer.
275
 *
276
 * We use r13 (a.k.a. tp) for this purpose.
277
 */
1780 jermar 278
unative_t sys_tls_set(unative_t addr)
1121 jermar 279
{
280
        return 0;
281
}
1474 palkovsky 282
 
283
/** Acquire console back for kernel
284
 *
285
 */
286
void arch_grab_console(void)
287
{
2064 vana 288
#ifdef SKI
1942 jermar 289
    ski_kbd_grab();
3657 vana 290
#else
291
    #ifdef CONFIG_NS16550
292
        ns16550_grab();
3661 vana 293
    #else
294
        i8042_grab();
3657 vana 295
    #endif  
2064 vana 296
#endif  
1474 palkovsky 297
}
298
/** Return console to userspace
299
 *
300
 */
301
void arch_release_console(void)
302
{
2064 vana 303
#ifdef SKI
1942 jermar 304
    ski_kbd_release();
3657 vana 305
#else   
306
    #ifdef CONFIG_NS16550
307
        ns16550_release();
3661 vana 308
    #else   
309
        i8042_release();
3657 vana 310
    #endif  
311
 
2064 vana 312
#endif
1474 palkovsky 313
}
1702 cejka 314
 
2227 decky 315
void arch_reboot(void)
316
{
3578 vana 317
    outb(0x64,0xfe);
2227 decky 318
    while (1);
319
}
320
 
1888 jermar 321
/** @}
1702 cejka 322
 */