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36 jermar 1
/*
2071 jermar 2
 * Copyright (c) 2005 Jakub Jermar
36 jermar 3
 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * 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.
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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *
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 * 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
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 * 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
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 * (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.
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 */
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1888 jermar 29
/** @addtogroup ia64
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 * @{
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 */
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/** @file
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 */
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78 jermar 35
#include <arch.h>
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#include <arch/ski/ski.h>
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#include <arch/drivers/it.h>
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#include <arch/interrupt.h>
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#include <arch/barrier.h>
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#include <arch/asm.h>
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#include <arch/register.h>
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#include <arch/types.h>
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#include <arch/context.h>
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#include <arch/stack.h>
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#include <arch/mm/page.h>
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#include <mm/as.h>
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#include <config.h>
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#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>
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#include <arch/bootinfo.h>
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#include <genarch/kbd/i8042.h>
519 vana 57
 
2513 vana 58
bootinfo_t *bootinfo;
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1223 jermar 60
void arch_pre_main(void)
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{
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    /* Setup usermode init tasks. */
2513 vana 63
 
2519 vana 64
//#ifdef I460GX
2745 decky 65
    unsigned int i;
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2513 vana 67
    init.cnt = bootinfo->taskmap.count;
2745 decky 68
 
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    for (i = 0; i < init.cnt; i++) {
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        init.tasks[i].addr = ((unsigned long) bootinfo->taskmap.tasks[i].addr) | VRN_MASK;
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        init.tasks[i].size = bootinfo->taskmap.tasks[i].size;
2513 vana 72
    }
2519 vana 73
/*
2513 vana 74
#else  
1601 jermar 75
    init.cnt = 8;
1223 jermar 76
    init.tasks[0].addr = INIT0_ADDRESS;
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    init.tasks[0].size = INIT0_SIZE;
1495 jermar 78
    init.tasks[1].addr = INIT0_ADDRESS + 0x400000;
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    init.tasks[1].size = INIT0_SIZE;
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    init.tasks[2].addr = INIT0_ADDRESS + 0x800000;
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    init.tasks[2].size = INIT0_SIZE;
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    init.tasks[3].addr = INIT0_ADDRESS + 0xc00000;
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    init.tasks[3].size = INIT0_SIZE;
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    init.tasks[4].addr = INIT0_ADDRESS + 0x1000000;
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    init.tasks[4].size = INIT0_SIZE;
1541 jermar 86
    init.tasks[5].addr = INIT0_ADDRESS + 0x1400000;
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    init.tasks[5].size = INIT0_SIZE;
1601 jermar 88
    init.tasks[6].addr = INIT0_ADDRESS + 0x1800000;
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    init.tasks[6].size = INIT0_SIZE;
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    init.tasks[7].addr = INIT0_ADDRESS + 0x1c00000;
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    init.tasks[7].size = INIT0_SIZE;
2519 vana 92
#endif*/
1223 jermar 93
}
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78 jermar 95
void arch_pre_mm_init(void)
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{
470 jermar 97
    /* Set Interruption Vector Address (i.e. location of interruption vector table). */
1780 jermar 98
    iva_write((uintptr_t) &ivt);
470 jermar 99
    srlz_d();
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78 jermar 101
}
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void arch_post_mm_init(void)
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{
1942 jermar 105
    irq_init(INR_COUNT, INR_COUNT);
2064 vana 106
#ifdef SKI
1942 jermar 107
    ski_init_console();
2064 vana 108
#else   
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    ega_init();
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#endif  
1942 jermar 111
    it_init(); 
78 jermar 112
}
503 jermar 113
 
1901 jermar 114
void arch_post_cpu_init(void)
115
{
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}
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503 jermar 118
void arch_pre_smp_init(void)
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{
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}
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2513 vana 122
 
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#ifdef I460GX
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#define POLL_INTERVAL       50000       /* 50 ms */
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/** Kernel thread for polling keyboard. */
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static void i8042_kkbdpoll(void *arg)
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{
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    while (1) {
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        i8042_poll();
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        thread_usleep(POLL_INTERVAL);
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    }
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}
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#endif
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503 jermar 135
void arch_post_smp_init(void)
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{
1945 jermar 137
 
138
    if (config.cpu_active == 1) {
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        /*
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         * Create thread that polls keyboard.
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         */
2064 vana 142
#ifdef SKI
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        thread_t *t;
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        t = thread_create(kkbdpoll, NULL, TASK, 0, "kkbdpoll", true);
1945 jermar 145
        if (!t)
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            panic("cannot create kkbdpoll\n");
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        thread_ready(t);
2064 vana 148
#endif      
2513 vana 149
 
150
#ifdef I460GX
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        devno_t kbd = device_assign_devno();
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        devno_t mouse = device_assign_devno();
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        /* keyboard controller */
154
        i8042_init(kbd, IRQ_KBD, mouse, IRQ_MOUSE);
155
 
156
        thread_t *t;
157
        t = thread_create(i8042_kkbdpoll, NULL, TASK, 0, "kkbdpoll", true);
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        if (!t)
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            panic("cannot create kkbdpoll\n");
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        thread_ready(t);
161
 
162
#endif
163
 
1945 jermar 164
    }
503 jermar 165
}
919 jermar 166
 
167
/** Enter userspace and never return. */
1078 jermar 168
void userspace(uspace_arg_t *kernel_uarg)
919 jermar 169
{
170
    psr_t psr;
171
    rsc_t rsc;
172
 
173
    psr.value = psr_read();
174
    psr.cpl = PL_USER;
175
    psr.i = true;               /* start with interrupts enabled */
176
    psr.ic = true;
177
    psr.ri = 0;             /* start with instruction #0 */
993 jermar 178
    psr.bn = 1;             /* start in bank 0 */
919 jermar 179
 
2082 decky 180
    asm volatile ("mov %0 = ar.rsc\n" : "=r" (rsc.value));
919 jermar 181
    rsc.loadrs = 0;
182
    rsc.be = false;
183
    rsc.pl = PL_USER;
184
    rsc.mode = 3;               /* eager mode */
185
 
1780 jermar 186
    switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry,
187
                ((uintptr_t) kernel_uarg->uspace_stack)+PAGE_SIZE-ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT),
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                ((uintptr_t) kernel_uarg->uspace_stack)+PAGE_SIZE,
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                (uintptr_t) kernel_uarg->uspace_uarg,
1078 jermar 190
                psr.value, rsc.value);
919 jermar 191
 
192
    while (1) {
193
        ;
194
    }
195
}
1121 jermar 196
 
197
/** Set thread-local-storage pointer.
198
 *
199
 * We use r13 (a.k.a. tp) for this purpose.
200
 */
1780 jermar 201
unative_t sys_tls_set(unative_t addr)
1121 jermar 202
{
203
        return 0;
204
}
1474 palkovsky 205
 
206
/** Acquire console back for kernel
207
 *
208
 */
209
void arch_grab_console(void)
210
{
2064 vana 211
#ifdef SKI
1942 jermar 212
    ski_kbd_grab();
2064 vana 213
#endif  
1474 palkovsky 214
}
215
/** Return console to userspace
216
 *
217
 */
218
void arch_release_console(void)
219
{
2064 vana 220
#ifdef SKI
1942 jermar 221
    ski_kbd_release();
2064 vana 222
#endif
1474 palkovsky 223
}
1702 cejka 224
 
2227 decky 225
void arch_reboot(void)
226
{
227
    // TODO
228
    while (1);
229
}
230
 
1888 jermar 231
/** @}
1702 cejka 232
 */