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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>
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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>
2064 vana 53
#include <arch/simics/ega.h>
519 vana 54
 
1223 jermar 55
void arch_pre_main(void)
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{
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	/* Setup usermode init tasks. */
1601 jermar 58
	init.cnt = 8;
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	init.tasks[0].addr = INIT0_ADDRESS;
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	init.tasks[0].size = INIT0_SIZE;
1495 jermar 61
	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 69
	init.tasks[5].addr = INIT0_ADDRESS + 0x1400000;
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	init.tasks[5].size = INIT0_SIZE;
1601 jermar 71
	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;
1223 jermar 75
}
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78 jermar 77
void arch_pre_mm_init(void)
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{
470 jermar 79
	/* Set Interruption Vector Address (i.e. location of interruption vector table). */
1780 jermar 80
	iva_write((uintptr_t) &ivt);
470 jermar 81
	srlz_d();
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78 jermar 83
}
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2064 vana 85
 
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78 jermar 87
void arch_post_mm_init(void)
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{
1942 jermar 89
	irq_init(INR_COUNT, INR_COUNT);
2064 vana 90
#ifdef SKI
1942 jermar 91
	ski_init_console();
2064 vana 92
#else	
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	ega_init();
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#endif	
1942 jermar 95
	it_init();	
78 jermar 96
}
503 jermar 97
 
1901 jermar 98
void arch_post_cpu_init(void)
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{
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}
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503 jermar 102
void arch_pre_smp_init(void)
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{
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}
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void arch_post_smp_init(void)
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{
1945 jermar 108
 
109
	if (config.cpu_active == 1) {
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		/*
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		 * Create thread that polls keyboard.
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		 */
2064 vana 113
#ifdef SKI
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		thread_t *t;
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		t = thread_create(kkbdpoll, NULL, TASK, 0, "kkbdpoll", true);
1945 jermar 116
		if (!t)
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			panic("cannot create kkbdpoll\n");
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		thread_ready(t);
2064 vana 119
#endif		
1945 jermar 120
	}
503 jermar 121
}
919 jermar 122
 
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/** Enter userspace and never return. */
1078 jermar 124
void userspace(uspace_arg_t *kernel_uarg)
919 jermar 125
{
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	psr_t psr;
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	rsc_t rsc;
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	psr.value = psr_read();
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	psr.cpl = PL_USER;
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	psr.i = true;				/* start with interrupts enabled */
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	psr.ic = true;
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	psr.ri = 0;				/* start with instruction #0 */
993 jermar 134
	psr.bn = 1;				/* start in bank 0 */
919 jermar 135
 
2082 decky 136
	asm volatile ("mov %0 = ar.rsc\n" : "=r" (rsc.value));
919 jermar 137
	rsc.loadrs = 0;
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	rsc.be = false;
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	rsc.pl = PL_USER;
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	rsc.mode = 3;				/* eager mode */
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1780 jermar 142
	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 146
			    psr.value, rsc.value);
919 jermar 147
 
148
	while (1) {
149
		;
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	}
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}
1121 jermar 152
 
153
/** Set thread-local-storage pointer.
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 *
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 * We use r13 (a.k.a. tp) for this purpose.
156
 */
1780 jermar 157
unative_t sys_tls_set(unative_t addr)
1121 jermar 158
{
159
        return 0;
160
}
1474 palkovsky 161
 
162
/** Acquire console back for kernel
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 *
164
 */
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void arch_grab_console(void)
166
{
2064 vana 167
#ifdef SKI
1942 jermar 168
	ski_kbd_grab();
2064 vana 169
#endif	
1474 palkovsky 170
}
171
/** Return console to userspace
172
 *
173
 */
174
void arch_release_console(void)
175
{
2064 vana 176
#ifdef SKI
1942 jermar 177
	ski_kbd_release();
2064 vana 178
#endif
1474 palkovsky 179
}
1702 cejka 180
 
1888 jermar 181
/** @}
1702 cejka 182
 */