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>
 
void arch_pre_main(void)
{
    /* Setup usermode init tasks. */
    init.cnt = 2;
    init.tasks[0].addr = INIT0_ADDRESS;
    init.tasks[0].size = INIT0_SIZE;
    init.tasks[1].addr = INIT1_ADDRESS;
    init.tasks[1].size = INIT1_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)
{
}
 
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)
{
}
/** Return console to userspace
 *
 */
void arch_release_console(void)
{
}
 

Rev 1223	Rev 1474
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	void arch_pre_main(void)	47	void arch_pre_main(void)
48	{	48	{
49	/* Setup usermode init tasks. */	49	/* Setup usermode init tasks. */
50	init.cnt = 2;	50	init.cnt = 2;
51	init.tasks[0].addr = INIT0_ADDRESS;	51	init.tasks[0].addr = INIT0_ADDRESS;
52	init.tasks[0].size = INIT0_SIZE;	52	init.tasks[0].size = INIT0_SIZE;
53	init.tasks[1].addr = INIT1_ADDRESS;	53	init.tasks[1].addr = INIT1_ADDRESS;
54	init.tasks[1].size = INIT1_SIZE;	54	init.tasks[1].size = INIT1_SIZE;
55	}	55	}
56		56
57	void arch_pre_mm_init(void)	57	void arch_pre_mm_init(void)
58	{	58	{
59	/* Set Interruption Vector Address (i.e. location of interruption vector table). */	59	/* Set Interruption Vector Address (i.e. location of interruption vector table). */
60	iva_write((__address) &ivt);	60	iva_write((__address) &ivt);
61	srlz_d();	61	srlz_d();
62		62
63	ski_init_console();	63	ski_init_console();
64	it_init();	64	it_init();
65	}	65	}
66		66
67	void arch_post_mm_init(void)	67	void arch_post_mm_init(void)
68	{	68	{
69	}	69	}
70		70
71	void arch_pre_smp_init(void)	71	void arch_pre_smp_init(void)
72	{	72	{
73	}	73	}
74		74
75	void arch_post_smp_init(void)	75	void arch_post_smp_init(void)
76	{	76	{
77	}	77	}
78		78
79	/** Enter userspace and never return. */	79	/** Enter userspace and never return. */
80	void userspace(uspace_arg_t *kernel_uarg)	80	void userspace(uspace_arg_t *kernel_uarg)
81	{	81	{
82	psr_t psr;	82	psr_t psr;
83	rsc_t rsc;	83	rsc_t rsc;
84		84
85	psr.value = psr_read();	85	psr.value = psr_read();
86	psr.cpl = PL_USER;	86	psr.cpl = PL_USER;
87	psr.i = true; /* start with interrupts enabled */	87	psr.i = true; /* start with interrupts enabled */
88	psr.ic = true;	88	psr.ic = true;
89	psr.ri = 0; /* start with instruction #0 */	89	psr.ri = 0; /* start with instruction #0 */
90	psr.bn = 1; /* start in bank 0 */	90	psr.bn = 1; /* start in bank 0 */
91		91
92	__asm__ volatile ("mov %0 = ar.rsc\n" : "=r" (rsc.value));	92	__asm__ volatile ("mov %0 = ar.rsc\n" : "=r" (rsc.value));
93	rsc.loadrs = 0;	93	rsc.loadrs = 0;
94	rsc.be = false;	94	rsc.be = false;
95	rsc.pl = PL_USER;	95	rsc.pl = PL_USER;
96	rsc.mode = 3; /* eager mode */	96	rsc.mode = 3; /* eager mode */
97		97
98	switch_to_userspace((__address) kernel_uarg->uspace_entry,	98	switch_to_userspace((__address) kernel_uarg->uspace_entry,
99	((__address) kernel_uarg->uspace_stack)+PAGE_SIZE-ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT),	99	((__address) kernel_uarg->uspace_stack)+PAGE_SIZE-ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT),
100	((__address) kernel_uarg->uspace_stack)+PAGE_SIZE,	100	((__address) kernel_uarg->uspace_stack)+PAGE_SIZE,
101	(__address) kernel_uarg->uspace_uarg,	101	(__address) kernel_uarg->uspace_uarg,
102	psr.value, rsc.value);	102	psr.value, rsc.value);
103		103
104	while (1) {	104	while (1) {
105	;	105	;
106	}	106	}
107	}	107	}
108		108
109	/** Set thread-local-storage pointer.	109	/** Set thread-local-storage pointer.
110	*	110	*
111	* We use r13 (a.k.a. tp) for this purpose.	111	* We use r13 (a.k.a. tp) for this purpose.
112	*/	112	*/
113	__native sys_tls_set(__native addr)	113	__native sys_tls_set(__native addr)
114	{	114	{
115	return 0;	115	return 0;
116	}	116	}
-		117
-		118	/** Acquire console back for kernel
-		119	*
-		120	*/
-		121	void arch_grab_console(void)
-		122	{
-		123	}
-		124	/** Return console to userspace
-		125	*
-		126	*/
-		127	void arch_release_console(void)
-		128	{
-		129	}
117		130

Subversion Repositories HelenOS-historic

(root)/kernel/trunk/arch/ia64/src/ia64.c @ 1780 – Rev 1223 → 1474