WebSVN – HelenOS-historic – Diff – /kernel/trunk/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.
 */
 
#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 = 6;
    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;
}
 
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 1541	Rev 1548
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	#include <arch.h>	29	#include <arch.h>
30	#include <arch/ski/ski.h>	30	#include <arch/ski/ski.h>
31	#include <arch/drivers/it.h>	31	#include <arch/drivers/it.h>
32	#include <arch/interrupt.h>	32	#include <arch/interrupt.h>
33	#include <arch/barrier.h>	33	#include <arch/barrier.h>
34	#include <arch/asm.h>	34	#include <arch/asm.h>
35	#include <arch/register.h>	35	#include <arch/register.h>
36	#include <arch/types.h>	36	#include <arch/types.h>
37	#include <arch/context.h>	37	#include <arch/context.h>
38	#include <arch/stack.h>	38	#include <arch/stack.h>
39	#include <arch/mm/page.h>	39	#include <arch/mm/page.h>
40	#include <mm/as.h>	40	#include <mm/as.h>
41	#include <config.h>	41	#include <config.h>
42	#include <userspace.h>	42	#include <userspace.h>
43	#include <console/console.h>	43	#include <console/console.h>
44	#include <proc/uarg.h>	44	#include <proc/uarg.h>
45	#include <syscall/syscall.h>	45	#include <syscall/syscall.h>
46		46
-		47	static int kbd_release=0;
-		48
47	void arch_pre_main(void)	49	void arch_pre_main(void)
48	{	50	{
49	/* Setup usermode init tasks. */	51	/* Setup usermode init tasks. */
50	init.cnt = 6;	52	init.cnt = 6;
51	init.tasks[0].addr = INIT0_ADDRESS;	53	init.tasks[0].addr = INIT0_ADDRESS;
52	init.tasks[0].size = INIT0_SIZE;	54	init.tasks[0].size = INIT0_SIZE;
53	init.tasks[1].addr = INIT0_ADDRESS + 0x400000;	55	init.tasks[1].addr = INIT0_ADDRESS + 0x400000;
54	init.tasks[1].size = INIT0_SIZE;	56	init.tasks[1].size = INIT0_SIZE;
55	init.tasks[2].addr = INIT0_ADDRESS + 0x800000;	57	init.tasks[2].addr = INIT0_ADDRESS + 0x800000;
56	init.tasks[2].size = INIT0_SIZE;	58	init.tasks[2].size = INIT0_SIZE;
57	init.tasks[3].addr = INIT0_ADDRESS + 0xc00000;	59	init.tasks[3].addr = INIT0_ADDRESS + 0xc00000;
58	init.tasks[3].size = INIT0_SIZE;	60	init.tasks[3].size = INIT0_SIZE;
59	init.tasks[4].addr = INIT0_ADDRESS + 0x1000000;	61	init.tasks[4].addr = INIT0_ADDRESS + 0x1000000;
60	init.tasks[4].size = INIT0_SIZE;	62	init.tasks[4].size = INIT0_SIZE;
61	init.tasks[5].addr = INIT0_ADDRESS + 0x1400000;	63	init.tasks[5].addr = INIT0_ADDRESS + 0x1400000;
62	init.tasks[5].size = INIT0_SIZE;	64	init.tasks[5].size = INIT0_SIZE;
63	}	65	}
64		66
65	void arch_pre_mm_init(void)	67	void arch_pre_mm_init(void)
66	{	68	{
67	/* Set Interruption Vector Address (i.e. location of interruption vector table). */	69	/* Set Interruption Vector Address (i.e. location of interruption vector table). */
68	iva_write((__address) &ivt);	70	iva_write((__address) &ivt);
69	srlz_d();	71	srlz_d();
70		72
71	ski_init_console();	73	ski_init_console();
72	it_init();	74	it_init();
73	}	75	}
74		76
75	void arch_post_mm_init(void)	77	void arch_post_mm_init(void)
76	{	78	{
77	ski_set_console_sysinfo();	79	ski_set_console_sysinfo();
78	}	80	}
79		81
80	void arch_pre_smp_init(void)	82	void arch_pre_smp_init(void)
81	{	83	{
82	}	84	}
83		85
84	void arch_post_smp_init(void)	86	void arch_post_smp_init(void)
85	{	87	{
86	}	88	}
87		89
88	/** Enter userspace and never return. */	90	/** Enter userspace and never return. */
89	void userspace(uspace_arg_t *kernel_uarg)	91	void userspace(uspace_arg_t *kernel_uarg)
90	{	92	{
91	psr_t psr;	93	psr_t psr;
92	rsc_t rsc;	94	rsc_t rsc;
93		95
94	psr.value = psr_read();	96	psr.value = psr_read();
95	psr.cpl = PL_USER;	97	psr.cpl = PL_USER;
96	psr.i = true; /* start with interrupts enabled */	98	psr.i = true; /* start with interrupts enabled */
97	psr.ic = true;	99	psr.ic = true;
98	psr.ri = 0; /* start with instruction #0 */	100	psr.ri = 0; /* start with instruction #0 */
99	psr.bn = 1; /* start in bank 0 */	101	psr.bn = 1; /* start in bank 0 */
100		102
101	__asm__ volatile ("mov %0 = ar.rsc\n" : "=r" (rsc.value));	103	__asm__ volatile ("mov %0 = ar.rsc\n" : "=r" (rsc.value));
102	rsc.loadrs = 0;	104	rsc.loadrs = 0;
103	rsc.be = false;	105	rsc.be = false;
104	rsc.pl = PL_USER;	106	rsc.pl = PL_USER;
105	rsc.mode = 3; /* eager mode */	107	rsc.mode = 3; /* eager mode */
106		108
107	switch_to_userspace((__address) kernel_uarg->uspace_entry,	109	switch_to_userspace((__address) kernel_uarg->uspace_entry,
108	((__address) kernel_uarg->uspace_stack)+PAGE_SIZE-ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT),	110	((__address) kernel_uarg->uspace_stack)+PAGE_SIZE-ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT),
109	((__address) kernel_uarg->uspace_stack)+PAGE_SIZE,	111	((__address) kernel_uarg->uspace_stack)+PAGE_SIZE,
110	(__address) kernel_uarg->uspace_uarg,	112	(__address) kernel_uarg->uspace_uarg,
111	psr.value, rsc.value);	113	psr.value, rsc.value);
112		114
113	while (1) {	115	while (1) {
114	;	116	;
115	}	117	}
116	}	118	}
117		119
118	/** Set thread-local-storage pointer.	120	/** Set thread-local-storage pointer.
119	*	121	*
120	* We use r13 (a.k.a. tp) for this purpose.	122	* We use r13 (a.k.a. tp) for this purpose.
121	*/	123	*/
122	__native sys_tls_set(__native addr)	124	__native sys_tls_set(__native addr)
123	{	125	{
124	return 0;	126	return 0;
125	}	127	}
126		128
127	/** Acquire console back for kernel	129	/** Acquire console back for kernel
128	*	130	*
129	*/	131	*/
130	void arch_grab_console(void)	132	void arch_grab_console(void)
131	{	133	{
-		134	kbd_release=kbd_uspace;
-		135	kbd_uspace=0;
132	}	136	}
133	/** Return console to userspace	137	/** Return console to userspace
134	*	138	*
135	*/	139	*/
136	void arch_release_console(void)	140	void arch_release_console(void)
137	{	141	{
-		142	kbd_uspace=kbd_release;
138	}	143	}
139		144

Subversion Repositories HelenOS-historic

(root)/kernel/trunk/arch/ia64/src/ia64.c – Rev 1541 → 1548