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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>
470 jermar 38
#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>
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>
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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 <arch/bootinfo.h>
4055 trochtova 54
#include <genarch/drivers/legacy/ia32/io.h>
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#include <genarch/drivers/ega/ega.h>
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#include <genarch/kbrd/kbrd.h>
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#include <genarch/srln/srln.h>
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#include <genarch/drivers/i8042/i8042.h>
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#include <genarch/drivers/ns16550/ns16550.h>
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#include <arch/drivers/kbd.h>
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#include <smp/smp.h>
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#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>
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#include <sysinfo/sysinfo.h>
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#include <string.h>
519 vana 68
 
4055 trochtova 69
/* NS16550 as a COM 1 */
4156 trochtova 70
#define NS16550_IRQ  (4 + LEGACY_INTERRUPT_BASE)
4055 trochtova 71
 
2513 vana 72
bootinfo_t *bootinfo;
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4055 trochtova 74
static uint64_t iosapic_base = 0xfec00000;
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76
/** Performs ia64-specific initialization before main_bsp() is called. */
1223 jermar 77
void arch_pre_main(void)
78
{
79
    /* Setup usermode init tasks. */
2513 vana 80
 
2745 decky 81
    unsigned int i;
82
 
2513 vana 83
    init.cnt = bootinfo->taskmap.count;
2745 decky 84
 
85
    for (i = 0; i < init.cnt; i++) {
4055 trochtova 86
        init.tasks[i].addr =
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            ((unsigned long) bootinfo->taskmap.tasks[i].addr) |
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            VRN_MASK;
2745 decky 89
        init.tasks[i].size = bootinfo->taskmap.tasks[i].size;
4296 trochtova 90
        str_cpy(init.tasks[i].name, CONFIG_TASK_NAME_BUFLEN,
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            bootinfo->taskmap.tasks[i].name);
2513 vana 92
    }
1223 jermar 93
}
94
 
78 jermar 95
void arch_pre_mm_init(void)
96
{
4055 trochtova 97
    /*
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     * Set Interruption Vector Address (i.e. location of interruption vector
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     * table).
100
     */
1780 jermar 101
    iva_write((uintptr_t) &ivt);
470 jermar 102
    srlz_d();
103
 
78 jermar 104
}
105
 
4055 trochtova 106
static void iosapic_init(void)
107
{
108
    uint64_t IOSAPIC = PA2KA((unative_t)(iosapic_base)) | FW_OFFSET;
109
    int i;
110
 
111
    int myid, myeid;
112
 
113
    myid = ia64_get_cpu_id();
114
    myeid = ia64_get_cpu_eid();
115
 
116
    for (i = 0; i < 16; i++) {
117
        if (i == 2)
118
            continue;    /* Disable Cascade interrupt */
119
        ((uint32_t *)(IOSAPIC + 0x00))[0] = 0x10 + 2 * i;
120
        srlz_d();
121
        ((uint32_t *)(IOSAPIC + 0x10))[0] = LEGACY_INTERRUPT_BASE + i;
122
        srlz_d();
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        ((uint32_t *)(IOSAPIC + 0x00))[0] = 0x10 + 2 * i + 1;
124
        srlz_d();
125
        ((uint32_t *)(IOSAPIC + 0x10))[0] = myid << (56 - 32) |
126
            myeid << (48 - 32);
127
        srlz_d();
128
    }
129
 
130
}
131
 
78 jermar 132
void arch_post_mm_init(void)
133
{
4055 trochtova 134
    if (config.cpu_active == 1) {
135
        iosapic_init();
136
        irq_init(INR_COUNT, INR_COUNT);
137
    }
4156 trochtova 138
    it_init(); 
78 jermar 139
}
503 jermar 140
 
1901 jermar 141
void arch_post_cpu_init(void)
142
{
143
}
144
 
503 jermar 145
void arch_pre_smp_init(void)
146
{
147
}
148
 
149
void arch_post_smp_init(void)
150
{
2064 vana 151
#ifdef SKI
4156 trochtova 152
    indev_t *in;
153
    in = skiin_init();
154
    if (in)
155
        srln_init(in);
156
    skiout_init();
157
#endif
158
 
159
#ifdef CONFIG_EGA
160
    ega_init(EGA_BASE, EGA_VIDEORAM);
161
#endif
162
 
4055 trochtova 163
#ifdef CONFIG_NS16550
4156 trochtova 164
    indev_t *kbrdin_ns16550
165
        = ns16550_init((ns16550_t *) NS16550_BASE, NS16550_IRQ, NULL, NULL);
166
    if (kbrdin_ns16550)
167
        srln_init(kbrdin_ns16550);
168
 
169
    sysinfo_set_item_val("kbd", NULL, true);
170
    sysinfo_set_item_val("kbd.inr", NULL, NS16550_IRQ);
4055 trochtova 171
    sysinfo_set_item_val("kbd.type", NULL, KBD_NS16550);
172
    sysinfo_set_item_val("kbd.address.physical", NULL,
173
        (uintptr_t) NS16550_BASE);
174
    sysinfo_set_item_val("kbd.address.kernel", NULL,
175
        (uintptr_t) NS16550_BASE);
4156 trochtova 176
#endif
177
 
178
#ifdef CONFIG_I8042
179
    indev_t *kbrdin_i8042 = i8042_init((i8042_t *) I8042_BASE, IRQ_KBD);
180
    if (kbrdin_i8042)
181
        kbrd_init(kbrdin_i8042);
182
 
183
    sysinfo_set_item_val("kbd", NULL, true);
184
    sysinfo_set_item_val("kbd.inr", NULL, IRQ_KBD);
4055 trochtova 185
    sysinfo_set_item_val("kbd.type", NULL, KBD_LEGACY);
186
    sysinfo_set_item_val("kbd.address.physical", NULL,
187
        (uintptr_t) I8042_BASE);
188
    sysinfo_set_item_val("kbd.address.kernel", NULL,
189
        (uintptr_t) I8042_BASE);
2513 vana 190
#endif
4156 trochtova 191
 
4055 trochtova 192
    sysinfo_set_item_val("ia64_iospace", NULL, true);
193
    sysinfo_set_item_val("ia64_iospace.address", NULL, true);
194
    sysinfo_set_item_val("ia64_iospace.address.virtual", NULL, IO_OFFSET);
503 jermar 195
}
919 jermar 196
 
4055 trochtova 197
 
919 jermar 198
/** Enter userspace and never return. */
1078 jermar 199
void userspace(uspace_arg_t *kernel_uarg)
919 jermar 200
{
201
    psr_t psr;
202
    rsc_t rsc;
203
 
204
    psr.value = psr_read();
205
    psr.cpl = PL_USER;
4055 trochtova 206
    psr.i = true;           /* start with interrupts enabled */
919 jermar 207
    psr.ic = true;
4055 trochtova 208
    psr.ri = 0;         /* start with instruction #0 */
209
    psr.bn = 1;         /* start in bank 0 */
919 jermar 210
 
2082 decky 211
    asm volatile ("mov %0 = ar.rsc\n" : "=r" (rsc.value));
919 jermar 212
    rsc.loadrs = 0;
213
    rsc.be = false;
214
    rsc.pl = PL_USER;
4055 trochtova 215
    rsc.mode = 3;           /* eager mode */
919 jermar 216
 
1780 jermar 217
    switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry,
4055 trochtova 218
        ((uintptr_t) kernel_uarg->uspace_stack) + PAGE_SIZE -
219
        ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT),
220
        ((uintptr_t) kernel_uarg->uspace_stack) + PAGE_SIZE,
221
        (uintptr_t) kernel_uarg->uspace_uarg, psr.value, rsc.value);
919 jermar 222
 
4055 trochtova 223
    while (1)
919 jermar 224
        ;
225
}
1121 jermar 226
 
227
/** Set thread-local-storage pointer.
228
 *
229
 * We use r13 (a.k.a. tp) for this purpose.
230
 */
1780 jermar 231
unative_t sys_tls_set(unative_t addr)
1121 jermar 232
{
233
        return 0;
234
}
1474 palkovsky 235
 
236
/** Acquire console back for kernel
237
 *
238
 */
239
void arch_grab_console(void)
240
{
2064 vana 241
#ifdef SKI
1942 jermar 242
    ski_kbd_grab();
4055 trochtova 243
#endif
1474 palkovsky 244
}
4055 trochtova 245
 
1474 palkovsky 246
/** Return console to userspace
247
 *
248
 */
249
void arch_release_console(void)
250
{
2064 vana 251
#ifdef SKI
1942 jermar 252
    ski_kbd_release();
2064 vana 253
#endif
1474 palkovsky 254
}
1702 cejka 255
 
2227 decky 256
void arch_reboot(void)
257
{
4055 trochtova 258
    pio_write_8((ioport8_t *)0x64, 0xfe);
259
    while (1)
260
        ;
2227 decky 261
}
262
 
4055 trochtova 263
/** Construct function pointer
264
 *
265
 * @param fptr   function pointer structure
266
 * @param addr   function address
267
 * @param caller calling function address
268
 *
269
 * @return address of the function pointer
270
 *
271
 */
272
void *arch_construct_function(fncptr_t *fptr, void *addr, void *caller)
273
{
274
    fptr->fnc = (unative_t) addr;
275
    fptr->gp = ((unative_t *) caller)[1];
276
 
277
    return (void *) fptr;
278
}
279
 
1888 jermar 280
/** @}
1702 cejka 281
 */