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>
 
static int kbd_release=0;
 
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((__address) &ivt);
    srlz_d();
   
    ski_init_console();
    it_init(); 
}
 
void arch_post_mm_init(void)
{
    ski_set_console_sysinfo();
}
 
void arch_pre_smp_init(void)
{
}
 
void arch_post_smp_init(void)
{
}
 
/** 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((__address) kernel_uarg->uspace_entry,
                ((__address) kernel_uarg->uspace_stack)+PAGE_SIZE-ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT),
                ((__address) kernel_uarg->uspace_stack)+PAGE_SIZE,
                (__address) 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.
 */
__native sys_tls_set(__native addr)
{
        return 0;
}
 
/** Acquire console back for kernel
 *
 */
void arch_grab_console(void)
{
    kbd_release=kbd_uspace;
    kbd_uspace=0;
}
/** Return console to userspace
 *
 */
void arch_release_console(void)
{
    kbd_uspace=kbd_release;
}
 
 /** @}
 */
 
 

Rev 1704	Rev 1705
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 ia64	29	/** @addtogroup ia64
30	* @ingroup others	-
31	* @{	30	* @{
32	*/	31	*/
33	/** @file	32	/** @file
34	*/	33	*/
35		34
36	#include <arch.h>	35	#include <arch.h>
37	#include <arch/ski/ski.h>	36	#include <arch/ski/ski.h>
38	#include <arch/drivers/it.h>	37	#include <arch/drivers/it.h>
39	#include <arch/interrupt.h>	38	#include <arch/interrupt.h>
40	#include <arch/barrier.h>	39	#include <arch/barrier.h>
41	#include <arch/asm.h>	40	#include <arch/asm.h>
42	#include <arch/register.h>	41	#include <arch/register.h>
43	#include <arch/types.h>	42	#include <arch/types.h>
44	#include <arch/context.h>	43	#include <arch/context.h>
45	#include <arch/stack.h>	44	#include <arch/stack.h>
46	#include <arch/mm/page.h>	45	#include <arch/mm/page.h>
47	#include <mm/as.h>	46	#include <mm/as.h>
48	#include <config.h>	47	#include <config.h>
49	#include <userspace.h>	48	#include <userspace.h>
50	#include <console/console.h>	49	#include <console/console.h>
51	#include <proc/uarg.h>	50	#include <proc/uarg.h>
52	#include <syscall/syscall.h>	51	#include <syscall/syscall.h>
53		52
54	static int kbd_release=0;	53	static int kbd_release=0;
55		54
56	void arch_pre_main(void)	55	void arch_pre_main(void)
57	{	56	{
58	/* Setup usermode init tasks. */	57	/* Setup usermode init tasks. */
59	init.cnt = 8;	58	init.cnt = 8;
60	init.tasks[0].addr = INIT0_ADDRESS;	59	init.tasks[0].addr = INIT0_ADDRESS;
61	init.tasks[0].size = INIT0_SIZE;	60	init.tasks[0].size = INIT0_SIZE;
62	init.tasks[1].addr = INIT0_ADDRESS + 0x400000;	61	init.tasks[1].addr = INIT0_ADDRESS + 0x400000;
63	init.tasks[1].size = INIT0_SIZE;	62	init.tasks[1].size = INIT0_SIZE;
64	init.tasks[2].addr = INIT0_ADDRESS + 0x800000;	63	init.tasks[2].addr = INIT0_ADDRESS + 0x800000;
65	init.tasks[2].size = INIT0_SIZE;	64	init.tasks[2].size = INIT0_SIZE;
66	init.tasks[3].addr = INIT0_ADDRESS + 0xc00000;	65	init.tasks[3].addr = INIT0_ADDRESS + 0xc00000;
67	init.tasks[3].size = INIT0_SIZE;	66	init.tasks[3].size = INIT0_SIZE;
68	init.tasks[4].addr = INIT0_ADDRESS + 0x1000000;	67	init.tasks[4].addr = INIT0_ADDRESS + 0x1000000;
69	init.tasks[4].size = INIT0_SIZE;	68	init.tasks[4].size = INIT0_SIZE;
70	init.tasks[5].addr = INIT0_ADDRESS + 0x1400000;	69	init.tasks[5].addr = INIT0_ADDRESS + 0x1400000;
71	init.tasks[5].size = INIT0_SIZE;	70	init.tasks[5].size = INIT0_SIZE;
72	init.tasks[6].addr = INIT0_ADDRESS + 0x1800000;	71	init.tasks[6].addr = INIT0_ADDRESS + 0x1800000;
73	init.tasks[6].size = INIT0_SIZE;	72	init.tasks[6].size = INIT0_SIZE;
74	init.tasks[7].addr = INIT0_ADDRESS + 0x1c00000;	73	init.tasks[7].addr = INIT0_ADDRESS + 0x1c00000;
75	init.tasks[7].size = INIT0_SIZE;	74	init.tasks[7].size = INIT0_SIZE;
76	}	75	}
77		76
78	void arch_pre_mm_init(void)	77	void arch_pre_mm_init(void)
79	{	78	{
80	/* Set Interruption Vector Address (i.e. location of interruption vector table). */	79	/* Set Interruption Vector Address (i.e. location of interruption vector table). */
81	iva_write((__address) &ivt);	80	iva_write((__address) &ivt);
82	srlz_d();	81	srlz_d();
83		82
84	ski_init_console();	83	ski_init_console();
85	it_init();	84	it_init();
86	}	85	}
87		86
88	void arch_post_mm_init(void)	87	void arch_post_mm_init(void)
89	{	88	{
90	ski_set_console_sysinfo();	89	ski_set_console_sysinfo();
91	}	90	}
92		91
93	void arch_pre_smp_init(void)	92	void arch_pre_smp_init(void)
94	{	93	{
95	}	94	}
96		95
97	void arch_post_smp_init(void)	96	void arch_post_smp_init(void)
98	{	97	{
99	}	98	}
100		99
101	/** Enter userspace and never return. */	100	/** Enter userspace and never return. */
102	void userspace(uspace_arg_t *kernel_uarg)	101	void userspace(uspace_arg_t *kernel_uarg)
103	{	102	{
104	psr_t psr;	103	psr_t psr;
105	rsc_t rsc;	104	rsc_t rsc;
106		105
107	psr.value = psr_read();	106	psr.value = psr_read();
108	psr.cpl = PL_USER;	107	psr.cpl = PL_USER;
109	psr.i = true; /* start with interrupts enabled */	108	psr.i = true; /* start with interrupts enabled */
110	psr.ic = true;	109	psr.ic = true;
111	psr.ri = 0; /* start with instruction #0 */	110	psr.ri = 0; /* start with instruction #0 */
112	psr.bn = 1; /* start in bank 0 */	111	psr.bn = 1; /* start in bank 0 */
113		112
114	__asm__ volatile ("mov %0 = ar.rsc\n" : "=r" (rsc.value));	113	__asm__ volatile ("mov %0 = ar.rsc\n" : "=r" (rsc.value));
115	rsc.loadrs = 0;	114	rsc.loadrs = 0;
116	rsc.be = false;	115	rsc.be = false;
117	rsc.pl = PL_USER;	116	rsc.pl = PL_USER;
118	rsc.mode = 3; /* eager mode */	117	rsc.mode = 3; /* eager mode */
119		118
120	switch_to_userspace((__address) kernel_uarg->uspace_entry,	119	switch_to_userspace((__address) kernel_uarg->uspace_entry,
121	((__address) kernel_uarg->uspace_stack)+PAGE_SIZE-ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT),	120	((__address) kernel_uarg->uspace_stack)+PAGE_SIZE-ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT),
122	((__address) kernel_uarg->uspace_stack)+PAGE_SIZE,	121	((__address) kernel_uarg->uspace_stack)+PAGE_SIZE,
123	(__address) kernel_uarg->uspace_uarg,	122	(__address) kernel_uarg->uspace_uarg,
124	psr.value, rsc.value);	123	psr.value, rsc.value);
125		124
126	while (1) {	125	while (1) {
127	;	126	;
128	}	127	}
129	}	128	}
130		129
131	/** Set thread-local-storage pointer.	130	/** Set thread-local-storage pointer.
132	*	131	*
133	* We use r13 (a.k.a. tp) for this purpose.	132	* We use r13 (a.k.a. tp) for this purpose.
134	*/	133	*/
135	__native sys_tls_set(__native addr)	134	__native sys_tls_set(__native addr)
136	{	135	{
137	return 0;	136	return 0;
138	}	137	}
139		138
140	/** Acquire console back for kernel	139	/** Acquire console back for kernel
141	*	140	*
142	*/	141	*/
143	void arch_grab_console(void)	142	void arch_grab_console(void)
144	{	143	{
145	kbd_release=kbd_uspace;	144	kbd_release=kbd_uspace;
146	kbd_uspace=0;	145	kbd_uspace=0;
147	}	146	}
148	/** Return console to userspace	147	/** Return console to userspace
149	*	148	*
150	*/	149	*/
151	void arch_release_console(void)	150	void arch_release_console(void)
152	{	151	{
153	kbd_uspace=kbd_release;	152	kbd_uspace=kbd_release;
154	}	153	}
155		154
156	/** @}	155	/** @}
157	*/	156	*/
158		157
159		158

Subversion Repositories HelenOS

(root)/trunk/kernel/arch/ia64/src/ia64.c @ 1817 – Rev 1704 → 1705