WebSVN – HelenOS – Diff – /trunk/kernel/arch/ia64/src/ia64.c


/*
 * Copyright (C) 2005 Jakub Jermar
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
/** @addtogroup ia64
 * @{
 */
/** @file
 */
 
#include <arch.h>
#include <arch/ski/ski.h>
#include <arch/drivers/it.h>
#include <arch/interrupt.h>
#include <arch/barrier.h>
#include <arch/asm.h>
#include <arch/register.h>
#include <arch/types.h>
#include <arch/context.h>
#include <arch/stack.h>
#include <arch/mm/page.h>
#include <mm/as.h>
#include <config.h>
#include <userspace.h>
#include <console/console.h>
#include <proc/uarg.h>
#include <syscall/syscall.h>
#include <ddi/irq.h>
 
void arch_pre_main(void)
{
    /* Setup usermode init tasks. */
    init.cnt = 8;
    init.tasks[0].addr = INIT0_ADDRESS;
    init.tasks[0].size = INIT0_SIZE;
    init.tasks[1].addr = INIT0_ADDRESS + 0x400000;
    init.tasks[1].size = INIT0_SIZE;
    init.tasks[2].addr = INIT0_ADDRESS + 0x800000;
    init.tasks[2].size = INIT0_SIZE;
    init.tasks[3].addr = INIT0_ADDRESS + 0xc00000;
    init.tasks[3].size = INIT0_SIZE;
    init.tasks[4].addr = INIT0_ADDRESS + 0x1000000;
    init.tasks[4].size = INIT0_SIZE;
    init.tasks[5].addr = INIT0_ADDRESS + 0x1400000;
    init.tasks[5].size = INIT0_SIZE;
    init.tasks[6].addr = INIT0_ADDRESS + 0x1800000;
    init.tasks[6].size = INIT0_SIZE;
    init.tasks[7].addr = INIT0_ADDRESS + 0x1c00000;
    init.tasks[7].size = INIT0_SIZE;
}
 
void arch_pre_mm_init(void)
{
    /* Set Interruption Vector Address (i.e. location of interruption vector table). */
    iva_write((uintptr_t) &ivt);
    srlz_d();
   
}
 
void arch_post_mm_init(void)
{
    irq_init(INR_COUNT, INR_COUNT);
    ski_init_console();
    it_init(); 
 
}
 
void arch_post_cpu_init(void)
{
}
 
void arch_pre_smp_init(void)
{
}
 
void arch_post_smp_init(void)
{
    thread_t *t;
 
    if (config.cpu_active == 1) {
        /*
         * Create thread that polls keyboard.
         */
        t = thread_create(kkbdpoll, NULL, TASK, 0, "kkbdpoll");
        if (!t)
            panic("cannot create kkbdpoll\n");
        thread_ready(t);
    }
}
 
/** Enter userspace and never return. */
void userspace(uspace_arg_t *kernel_uarg)
{
    psr_t psr;
    rsc_t rsc;
 
    psr.value = psr_read();
    psr.cpl = PL_USER;
    psr.i = true;               /* start with interrupts enabled */
    psr.ic = true;
    psr.ri = 0;             /* start with instruction #0 */
    psr.bn = 1;             /* start in bank 0 */
 
    __asm__ volatile ("mov %0 = ar.rsc\n" : "=r" (rsc.value));
    rsc.loadrs = 0;
    rsc.be = false;
    rsc.pl = PL_USER;
    rsc.mode = 3;               /* eager mode */
 
    switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry,
                ((uintptr_t) kernel_uarg->uspace_stack)+PAGE_SIZE-ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT),
                ((uintptr_t) kernel_uarg->uspace_stack)+PAGE_SIZE,
                (uintptr_t) kernel_uarg->uspace_uarg,
                psr.value, rsc.value);
 
    while (1) {
        ;
    }
}
 
/** Set thread-local-storage pointer.
 *
 * We use r13 (a.k.a. tp) for this purpose.
 */
unative_t sys_tls_set(unative_t addr)
{
        return 0;
}
 
/** Acquire console back for kernel
 *
 */
void arch_grab_console(void)
{
    ski_kbd_grab();
}
/** Return console to userspace
 *
 */
void arch_release_console(void)
{
    ski_kbd_release();
}
 
/** @}
 */
 

Rev 1942	Rev 1945
1	/*	1	/*
2	* Copyright (C) 2005 Jakub Jermar	2	* Copyright (C) 2005 Jakub Jermar
3	* All rights reserved.	3	* All rights reserved.
4	*	4	*
5	* Redistribution and use in source and binary forms, with or without	5	* Redistribution and use in source and binary forms, with or without
6	* modification, are permitted provided that the following conditions	6	* modification, are permitted provided that the following conditions
7	* are met:	7	* are met:
8	*	8	*
9	* - Redistributions of source code must retain the above copyright	9	* - Redistributions of source code must retain the above copyright
10	* notice, this list of conditions and the following disclaimer.	10	* notice, this list of conditions and the following disclaimer.
11	* - Redistributions in binary form must reproduce the above copyright	11	* - Redistributions in binary form must reproduce the above copyright
12	* notice, this list of conditions and the following disclaimer in the	12	* notice, this list of conditions and the following disclaimer in the
13	* documentation and/or other materials provided with the distribution.	13	* documentation and/or other materials provided with the distribution.
14	* - The name of the author may not be used to endorse or promote products	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.	15	* derived from this software without specific prior written permission.
16	*	16	*
17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR	17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES	18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.	19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,	20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT	21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,	22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF	25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27	*/	27	*/
28		28
29	/** @addtogroup ia64	29	/** @addtogroup ia64
30	* @{	30	* @{
31	*/	31	*/
32	/** @file	32	/** @file
33	*/	33	*/
34		34
35	#include <arch.h>	35	#include <arch.h>
36	#include <arch/ski/ski.h>	36	#include <arch/ski/ski.h>
37	#include <arch/drivers/it.h>	37	#include <arch/drivers/it.h>
38	#include <arch/interrupt.h>	38	#include <arch/interrupt.h>
39	#include <arch/barrier.h>	39	#include <arch/barrier.h>
40	#include <arch/asm.h>	40	#include <arch/asm.h>
41	#include <arch/register.h>	41	#include <arch/register.h>
42	#include <arch/types.h>	42	#include <arch/types.h>
43	#include <arch/context.h>	43	#include <arch/context.h>
44	#include <arch/stack.h>	44	#include <arch/stack.h>
45	#include <arch/mm/page.h>	45	#include <arch/mm/page.h>
46	#include <mm/as.h>	46	#include <mm/as.h>
47	#include <config.h>	47	#include <config.h>
48	#include <userspace.h>	48	#include <userspace.h>
49	#include <console/console.h>	49	#include <console/console.h>
50	#include <proc/uarg.h>	50	#include <proc/uarg.h>
51	#include <syscall/syscall.h>	51	#include <syscall/syscall.h>
52	#include <ddi/irq.h>	52	#include <ddi/irq.h>
53		53
54	void arch_pre_main(void)	54	void arch_pre_main(void)
55	{	55	{
56	/* Setup usermode init tasks. */	56	/* Setup usermode init tasks. */
57	init.cnt = 8;	57	init.cnt = 8;
58	init.tasks[0].addr = INIT0_ADDRESS;	58	init.tasks[0].addr = INIT0_ADDRESS;
59	init.tasks[0].size = INIT0_SIZE;	59	init.tasks[0].size = INIT0_SIZE;
60	init.tasks[1].addr = INIT0_ADDRESS + 0x400000;	60	init.tasks[1].addr = INIT0_ADDRESS + 0x400000;
61	init.tasks[1].size = INIT0_SIZE;	61	init.tasks[1].size = INIT0_SIZE;
62	init.tasks[2].addr = INIT0_ADDRESS + 0x800000;	62	init.tasks[2].addr = INIT0_ADDRESS + 0x800000;
63	init.tasks[2].size = INIT0_SIZE;	63	init.tasks[2].size = INIT0_SIZE;
64	init.tasks[3].addr = INIT0_ADDRESS + 0xc00000;	64	init.tasks[3].addr = INIT0_ADDRESS + 0xc00000;
65	init.tasks[3].size = INIT0_SIZE;	65	init.tasks[3].size = INIT0_SIZE;
66	init.tasks[4].addr = INIT0_ADDRESS + 0x1000000;	66	init.tasks[4].addr = INIT0_ADDRESS + 0x1000000;
67	init.tasks[4].size = INIT0_SIZE;	67	init.tasks[4].size = INIT0_SIZE;
68	init.tasks[5].addr = INIT0_ADDRESS + 0x1400000;	68	init.tasks[5].addr = INIT0_ADDRESS + 0x1400000;
69	init.tasks[5].size = INIT0_SIZE;	69	init.tasks[5].size = INIT0_SIZE;
70	init.tasks[6].addr = INIT0_ADDRESS + 0x1800000;	70	init.tasks[6].addr = INIT0_ADDRESS + 0x1800000;
71	init.tasks[6].size = INIT0_SIZE;	71	init.tasks[6].size = INIT0_SIZE;
72	init.tasks[7].addr = INIT0_ADDRESS + 0x1c00000;	72	init.tasks[7].addr = INIT0_ADDRESS + 0x1c00000;
73	init.tasks[7].size = INIT0_SIZE;	73	init.tasks[7].size = INIT0_SIZE;
74	}	74	}
75		75
76	void arch_pre_mm_init(void)	76	void arch_pre_mm_init(void)
77	{	77	{
78	/* Set Interruption Vector Address (i.e. location of interruption vector table). */	78	/* Set Interruption Vector Address (i.e. location of interruption vector table). */
79	iva_write((uintptr_t) &ivt);	79	iva_write((uintptr_t) &ivt);
80	srlz_d();	80	srlz_d();
81		81
82	}	82	}
83		83
84	void arch_post_mm_init(void)	84	void arch_post_mm_init(void)
85	{	85	{
86	irq_init(INR_COUNT, INR_COUNT);	86	irq_init(INR_COUNT, INR_COUNT);
87	ski_init_console();	87	ski_init_console();
88	it_init();	88	it_init();
89	ski_set_console_sysinfo();	-
90	}	89	}
91		90
92	void arch_post_cpu_init(void)	91	void arch_post_cpu_init(void)
93	{	92	{
94	}	93	}
95		94
96	void arch_pre_smp_init(void)	95	void arch_pre_smp_init(void)
97	{	96	{
98	}	97	}
99		98
100	void arch_post_smp_init(void)	99	void arch_post_smp_init(void)
101	{	100	{
-		101	thread_t *t;
-		102
-		103	if (config.cpu_active == 1) {
-		104	/*
-		105	* Create thread that polls keyboard.
-		106	*/
-		107	t = thread_create(kkbdpoll, NULL, TASK, 0, "kkbdpoll");
-		108	if (!t)
-		109	panic("cannot create kkbdpoll\n");
-		110	thread_ready(t);
-		111	}
102	}	112	}
103		113
104	/** Enter userspace and never return. */	114	/** Enter userspace and never return. */
105	void userspace(uspace_arg_t *kernel_uarg)	115	void userspace(uspace_arg_t *kernel_uarg)
106	{	116	{
107	psr_t psr;	117	psr_t psr;
108	rsc_t rsc;	118	rsc_t rsc;
109		119
110	psr.value = psr_read();	120	psr.value = psr_read();
111	psr.cpl = PL_USER;	121	psr.cpl = PL_USER;
112	psr.i = true; /* start with interrupts enabled */	122	psr.i = true; /* start with interrupts enabled */
113	psr.ic = true;	123	psr.ic = true;
114	psr.ri = 0; /* start with instruction #0 */	124	psr.ri = 0; /* start with instruction #0 */
115	psr.bn = 1; /* start in bank 0 */	125	psr.bn = 1; /* start in bank 0 */
116		126
117	__asm__ volatile ("mov %0 = ar.rsc\n" : "=r" (rsc.value));	127	__asm__ volatile ("mov %0 = ar.rsc\n" : "=r" (rsc.value));
118	rsc.loadrs = 0;	128	rsc.loadrs = 0;
119	rsc.be = false;	129	rsc.be = false;
120	rsc.pl = PL_USER;	130	rsc.pl = PL_USER;
121	rsc.mode = 3; /* eager mode */	131	rsc.mode = 3; /* eager mode */
122		132
123	switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry,	133	switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry,
124	((uintptr_t) kernel_uarg->uspace_stack)+PAGE_SIZE-ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT),	134	((uintptr_t) kernel_uarg->uspace_stack)+PAGE_SIZE-ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT),
125	((uintptr_t) kernel_uarg->uspace_stack)+PAGE_SIZE,	135	((uintptr_t) kernel_uarg->uspace_stack)+PAGE_SIZE,
126	(uintptr_t) kernel_uarg->uspace_uarg,	136	(uintptr_t) kernel_uarg->uspace_uarg,
127	psr.value, rsc.value);	137	psr.value, rsc.value);
128		138
129	while (1) {	139	while (1) {
130	;	140	;
131	}	141	}
132	}	142	}
133		143
134	/** Set thread-local-storage pointer.	144	/** Set thread-local-storage pointer.
135	*	145	*
136	* We use r13 (a.k.a. tp) for this purpose.	146	* We use r13 (a.k.a. tp) for this purpose.
137	*/	147	*/
138	unative_t sys_tls_set(unative_t addr)	148	unative_t sys_tls_set(unative_t addr)
139	{	149	{
140	return 0;	150	return 0;
141	}	151	}
142		152
143	/** Acquire console back for kernel	153	/** Acquire console back for kernel
144	*	154	*
145	*/	155	*/
146	void arch_grab_console(void)	156	void arch_grab_console(void)
147	{	157	{
148	ski_kbd_grab();	158	ski_kbd_grab();
149	}	159	}
150	/** Return console to userspace	160	/** Return console to userspace
151	*	161	*
152	*/	162	*/
153	void arch_release_console(void)	163	void arch_release_console(void)
154	{	164	{
155	ski_kbd_release();	165	ski_kbd_release();
156	}	166	}
157		167
158	/** @}	168	/** @}
159	*/	169	*/
160		170

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(root)/trunk/kernel/arch/ia64/src/ia64.c – Rev 1942 → 1945