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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>
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#include <ddi/device.h>
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#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. */
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//#ifdef I460GX
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    int i;
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    init.cnt = bootinfo->taskmap.count;
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    for(i=0;i<init.cnt;i++)
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    {
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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;
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    }
2519 vana 72
/*
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#else  
1601 jermar 74
    init.cnt = 8;
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    init.tasks[0].addr = INIT0_ADDRESS;
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    init.tasks[0].size = INIT0_SIZE;
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    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 85
    init.tasks[5].addr = INIT0_ADDRESS + 0x1400000;
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    init.tasks[5].size = INIT0_SIZE;
1601 jermar 87
    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 91
#endif*/
1223 jermar 92
}
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78 jermar 94
void arch_pre_mm_init(void)
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{
470 jermar 96
    /* Set Interruption Vector Address (i.e. location of interruption vector table). */
1780 jermar 97
    iva_write((uintptr_t) &ivt);
470 jermar 98
    srlz_d();
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78 jermar 100
}
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void arch_post_mm_init(void)
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{
1942 jermar 104
    irq_init(INR_COUNT, INR_COUNT);
2064 vana 105
#ifdef SKI
1942 jermar 106
    ski_init_console();
2064 vana 107
#else   
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    ega_init();
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#endif  
1942 jermar 110
    it_init(); 
78 jermar 111
}
503 jermar 112
 
1901 jermar 113
void arch_post_cpu_init(void)
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{
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}
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503 jermar 117
void arch_pre_smp_init(void)
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{
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}
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2513 vana 121
 
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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 134
void arch_post_smp_init(void)
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{
1945 jermar 136
 
137
    if (config.cpu_active == 1) {
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        /*
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         * Create thread that polls keyboard.
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         */
2064 vana 141
#ifdef SKI
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        thread_t *t;
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        t = thread_create(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);
2064 vana 147
#endif      
2513 vana 148
 
149
#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 */
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        i8042_init(kbd, IRQ_KBD, mouse, IRQ_MOUSE);
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        thread_t *t;
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        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);
160
 
161
#endif
162
 
1945 jermar 163
    }
503 jermar 164
}
919 jermar 165
 
166
/** Enter userspace and never return. */
1078 jermar 167
void userspace(uspace_arg_t *kernel_uarg)
919 jermar 168
{
169
    psr_t psr;
170
    rsc_t rsc;
171
 
172
    psr.value = psr_read();
173
    psr.cpl = PL_USER;
174
    psr.i = true;               /* start with interrupts enabled */
175
    psr.ic = true;
176
    psr.ri = 0;             /* start with instruction #0 */
993 jermar 177
    psr.bn = 1;             /* start in bank 0 */
919 jermar 178
 
2082 decky 179
    asm volatile ("mov %0 = ar.rsc\n" : "=r" (rsc.value));
919 jermar 180
    rsc.loadrs = 0;
181
    rsc.be = false;
182
    rsc.pl = PL_USER;
183
    rsc.mode = 3;               /* eager mode */
184
 
1780 jermar 185
    switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry,
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                ((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 189
                psr.value, rsc.value);
919 jermar 190
 
191
    while (1) {
192
        ;
193
    }
194
}
1121 jermar 195
 
196
/** Set thread-local-storage pointer.
197
 *
198
 * We use r13 (a.k.a. tp) for this purpose.
199
 */
1780 jermar 200
unative_t sys_tls_set(unative_t addr)
1121 jermar 201
{
202
        return 0;
203
}
1474 palkovsky 204
 
205
/** Acquire console back for kernel
206
 *
207
 */
208
void arch_grab_console(void)
209
{
2064 vana 210
#ifdef SKI
1942 jermar 211
    ski_kbd_grab();
2064 vana 212
#endif  
1474 palkovsky 213
}
214
/** Return console to userspace
215
 *
216
 */
217
void arch_release_console(void)
218
{
2064 vana 219
#ifdef SKI
1942 jermar 220
    ski_kbd_release();
2064 vana 221
#endif
1474 palkovsky 222
}
1702 cejka 223
 
2227 decky 224
void arch_reboot(void)
225
{
226
    // TODO
227
    while (1);
228
}
229
 
1888 jermar 230
/** @}
1702 cejka 231
 */