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>
#include <ddi/device.h>
#include <arch/bootinfo.h>
#include <genarch/drivers/legacy/ia32/io.h>
#include <genarch/drivers/ega/ega.h>
#include <genarch/kbrd/kbrd.h>
#include <genarch/srln/srln.h>
#include <genarch/drivers/i8042/i8042.h>
#include <genarch/drivers/ns16550/ns16550.h>
#include <arch/drivers/kbd.h>
#include <smp/smp.h>
#include <smp/ipi.h>
#include <arch/atomic.h>
#include <panic.h>
#include <print.h>
#include <sysinfo/sysinfo.h>
#include <string.h>
 
/* NS16550 as a COM 1 */
#define NS16550_IRQ (4 + LEGACY_INTERRUPT_BASE)
 
bootinfo_t *bootinfo;
 
static uint64_t iosapic_base = 0xfec00000;
 
/** Performs ia64-specific initialization before main_bsp() is called. */
void arch_pre_main(void)
{
    /* Setup usermode init tasks. */
 
    unsigned int i;
   
    init.cnt = bootinfo->taskmap.count;
   
    for (i = 0; i < init.cnt; i++) {
        init.tasks[i].addr =
            ((unsigned long) bootinfo->taskmap.tasks[i].addr) |
            VRN_MASK;
        init.tasks[i].size = bootinfo->taskmap.tasks[i].size;
        strncpy(init.tasks[i].name, bootinfo->taskmap.tasks[i].name,
            CONFIG_TASK_NAME_BUFLEN);
    }
}
 
void arch_pre_mm_init(void)
{
    /*
     * Set Interruption Vector Address (i.e. location of interruption vector
     * table).
     */
    iva_write((uintptr_t) &ivt);
    srlz_d();
   
}
 
static void iosapic_init(void)
{
    uint64_t IOSAPIC = PA2KA((unative_t)(iosapic_base)) | FW_OFFSET;
    int i;
   
    int myid, myeid;
   
    myid = ia64_get_cpu_id();
    myeid = ia64_get_cpu_eid();
 
    for (i = 0; i < 16; i++) {
        if (i == 2)
            continue;    /* Disable Cascade interrupt */
        ((uint32_t *)(IOSAPIC + 0x00))[0] = 0x10 + 2 * i;
        srlz_d();
        ((uint32_t *)(IOSAPIC + 0x10))[0] = LEGACY_INTERRUPT_BASE + i;
        srlz_d();
        ((uint32_t *)(IOSAPIC + 0x00))[0] = 0x10 + 2 * i + 1;
        srlz_d();
        ((uint32_t *)(IOSAPIC + 0x10))[0] = myid << (56 - 32) |
            myeid << (48 - 32);
        srlz_d();
    }
 
}
 
 
void arch_post_mm_init(void)
{
    if (config.cpu_active == 1) {
        iosapic_init();
        irq_init(INR_COUNT, INR_COUNT);
 
 
 
 
 
    }
    it_init(); 
 
}
 
void arch_post_cpu_init(void)
{
}
 
void arch_pre_smp_init(void)
{
}
 
void arch_post_smp_init(void)
{
 
 
 
#ifdef SKI
 
    srln_init(stdin);
    ski_console_init(&srlnin);
 
#endif      
 
#ifdef I460GX
#ifdef CONFIG_EGA
    ega_init(EGA_BASE, EGA_VIDEORAM);
#endif
 
    devno_t devno = device_assign_devno();
    inr_t inr;
 
#ifdef CONFIG_NS16550
    inr = NS16550_IRQ;
    srln_init(stdin);
    (void) ns16550_init((ns16550_t *)NS16550_BASE, devno, inr, NULL, NULL,
        &srlnin);
    sysinfo_set_item_val("kbd.type", NULL, KBD_NS16550);
    sysinfo_set_item_val("kbd.address.physical", NULL,
        (uintptr_t) NS16550_BASE);
    sysinfo_set_item_val("kbd.address.kernel", NULL,
        (uintptr_t) NS16550_BASE);
#else
    inr = IRQ_KBD;
    kbrd_init(stdin);
    (void) i8042_init((i8042_t *)I8042_BASE, devno, inr, &kbrdin);
    trap_virtual_enable_irqs(1 << inr);
    sysinfo_set_item_val("kbd.type", NULL, KBD_LEGACY);
    sysinfo_set_item_val("kbd.address.physical", NULL,
        (uintptr_t) I8042_BASE);
    sysinfo_set_item_val("kbd.address.kernel", NULL,
        (uintptr_t) I8042_BASE);
#endif
    sysinfo_set_item_val("kbd", NULL, true);
    sysinfo_set_item_val("kbd.devno", NULL, devno);
    sysinfo_set_item_val("kbd.inr", NULL, inr);
#endif
 
    sysinfo_set_item_val("ia64_iospace", NULL, true);
    sysinfo_set_item_val("ia64_iospace.address", NULL, true);
    sysinfo_set_item_val("ia64_iospace.address.virtual", NULL, IO_OFFSET);
}
 
 
/** 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)
{
#ifdef SKI
    ski_kbd_grab();
#endif
}
 
/** Return console to userspace
 *
 */
void arch_release_console(void)
{
#ifdef SKI
    ski_kbd_release();
#endif
}
 
void arch_reboot(void)
{
    pio_write_8((ioport8_t *)0x64, 0xfe);
    while (1)
        ;
}
 
/** Construct function pointer
 *
 * @param fptr   function pointer structure
 * @param addr   function address
 * @param caller calling function address
 *
 * @return address of the function pointer
 *
 */
void *arch_construct_function(fncptr_t *fptr, void *addr, void *caller)
{
    fptr->fnc = (unative_t) addr;
    fptr->gp = ((unative_t *) caller)[1];
   
    return (void *) fptr;
}
 
/** @}
 */
 

Rev 4043	Rev 4060
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	#include <ddi/device.h>	53	#include <ddi/device.h>
54	#include <arch/bootinfo.h>	54	#include <arch/bootinfo.h>
55	#include <genarch/drivers/legacy/ia32/io.h>	55	#include <genarch/drivers/legacy/ia32/io.h>
56	#include <genarch/drivers/ega/ega.h>	56	#include <genarch/drivers/ega/ega.h>
57	#include <genarch/kbrd/kbrd.h>	57	#include <genarch/kbrd/kbrd.h>
58	#include <genarch/srln/srln.h>	58	#include <genarch/srln/srln.h>
59	#include <genarch/drivers/i8042/i8042.h>	59	#include <genarch/drivers/i8042/i8042.h>
60	#include <genarch/drivers/ns16550/ns16550.h>	60	#include <genarch/drivers/ns16550/ns16550.h>
61	#include <arch/drivers/kbd.h>	61	#include <arch/drivers/kbd.h>
62	#include <smp/smp.h>	62	#include <smp/smp.h>
63	#include <smp/ipi.h>	63	#include <smp/ipi.h>
64	#include <arch/atomic.h>	64	#include <arch/atomic.h>
65	#include <panic.h>	65	#include <panic.h>
66	#include <print.h>	66	#include <print.h>
67	#include <sysinfo/sysinfo.h>	67	#include <sysinfo/sysinfo.h>
68	#include <string.h>	68	#include <string.h>
69		69
70	/* NS16550 as a COM 1 */	70	/* NS16550 as a COM 1 */
71	#define NS16550_IRQ (4 + LEGACY_INTERRUPT_BASE)	71	#define NS16550_IRQ (4 + LEGACY_INTERRUPT_BASE)
72		72
73	bootinfo_t *bootinfo;	73	bootinfo_t *bootinfo;
74		74
75	static uint64_t iosapic_base = 0xfec00000;	75	static uint64_t iosapic_base = 0xfec00000;
76		76
77	/** Performs ia64-specific initialization before main_bsp() is called. */	77	/** Performs ia64-specific initialization before main_bsp() is called. */
78	void arch_pre_main(void)	78	void arch_pre_main(void)
79	{	79	{
80	/* Setup usermode init tasks. */	80	/* Setup usermode init tasks. */
81		81
82	unsigned int i;	82	unsigned int i;
83		83
84	init.cnt = bootinfo->taskmap.count;	84	init.cnt = bootinfo->taskmap.count;
85		85
86	for (i = 0; i < init.cnt; i++) {	86	for (i = 0; i < init.cnt; i++) {
87	init.tasks[i].addr =	87	init.tasks[i].addr =
88	((unsigned long) bootinfo->taskmap.tasks[i].addr) \|	88	((unsigned long) bootinfo->taskmap.tasks[i].addr) \|
89	VRN_MASK;	89	VRN_MASK;
90	init.tasks[i].size = bootinfo->taskmap.tasks[i].size;	90	init.tasks[i].size = bootinfo->taskmap.tasks[i].size;
91	strncpy(init.tasks[i].name, bootinfo->taskmap.tasks[i].name,	91	strncpy(init.tasks[i].name, bootinfo->taskmap.tasks[i].name,
92	CONFIG_TASK_NAME_BUFLEN);	92	CONFIG_TASK_NAME_BUFLEN);
93	}	93	}
94	}	94	}
95		95
96	void arch_pre_mm_init(void)	96	void arch_pre_mm_init(void)
97	{	97	{
98	/*	98	/*
99	* Set Interruption Vector Address (i.e. location of interruption vector	99	* Set Interruption Vector Address (i.e. location of interruption vector
100	* table).	100	* table).
101	*/	101	*/
102	iva_write((uintptr_t) &ivt);	102	iva_write((uintptr_t) &ivt);
103	srlz_d();	103	srlz_d();
104		104
105	}	105	}
106		106
107	static void iosapic_init(void)	107	static void iosapic_init(void)
108	{	108	{
109	uint64_t IOSAPIC = PA2KA((unative_t)(iosapic_base)) \| FW_OFFSET;	109	uint64_t IOSAPIC = PA2KA((unative_t)(iosapic_base)) \| FW_OFFSET;
110	int i;	110	int i;
111		111
112	int myid, myeid;	112	int myid, myeid;
113		113
114	myid = ia64_get_cpu_id();	114	myid = ia64_get_cpu_id();
115	myeid = ia64_get_cpu_eid();	115	myeid = ia64_get_cpu_eid();
116		116
117	for (i = 0; i < 16; i++) {	117	for (i = 0; i < 16; i++) {
118	if (i == 2)	118	if (i == 2)
119	continue; /* Disable Cascade interrupt */	119	continue; /* Disable Cascade interrupt */
120	((uint32_t )(IOSAPIC + 0x00))[0] = 0x10 + 2 i;	120	((uint32_t )(IOSAPIC + 0x00))[0] = 0x10 + 2 i;
121	srlz_d();	121	srlz_d();
122	((uint32_t *)(IOSAPIC + 0x10))[0] = LEGACY_INTERRUPT_BASE + i;	122	((uint32_t *)(IOSAPIC + 0x10))[0] = LEGACY_INTERRUPT_BASE + i;
123	srlz_d();	123	srlz_d();
124	((uint32_t )(IOSAPIC + 0x00))[0] = 0x10 + 2 i + 1;	124	((uint32_t )(IOSAPIC + 0x00))[0] = 0x10 + 2 i + 1;
125	srlz_d();	125	srlz_d();
126	((uint32_t *)(IOSAPIC + 0x10))[0] = myid << (56 - 32) \|	126	((uint32_t *)(IOSAPIC + 0x10))[0] = myid << (56 - 32) \|
127	myeid << (48 - 32);	127	myeid << (48 - 32);
128	srlz_d();	128	srlz_d();
129	}	129	}
130		130
131	}	131	}
132		132
133		-
134	void arch_post_mm_init(void)	133	void arch_post_mm_init(void)
135	{	134	{
136	if (config.cpu_active == 1) {	135	if (config.cpu_active == 1) {
137	iosapic_init();	136	iosapic_init();
138	irq_init(INR_COUNT, INR_COUNT);	137	irq_init(INR_COUNT, INR_COUNT);
139	#ifdef SKI	-
140	ski_init_console();	-
141	#else	-
142	ega_init(EGA_BASE, EGA_VIDEORAM);	-
143	#endif	-
144	}	138	}
145	it_init();	139	it_init();
146		-
147	}	140	}
148		141
149	void arch_post_cpu_init(void)	142	void arch_post_cpu_init(void)
150	{	143	{
151	}	144	}
152		145
153	void arch_pre_smp_init(void)	146	void arch_pre_smp_init(void)
154	{	147	{
155	}	148	}
156		149
157	void arch_post_smp_init(void)	150	void arch_post_smp_init(void)
158	{	151	{
159	/*	-
160	* Create thread that polls keyboard.	-
161	*/	-
162	#ifdef SKI	152	#ifdef SKI
163	thread_t *t = thread_create(kkbdpoll, NULL, TASK, 0, "kkbdpoll", true);	-
164	if (!t)	153	srln_init(stdin);
165	panic("Cannot create kkbdpoll.");	154	ski_console_init(&srlnin);
166	thread_ready(t);	-
167	#endif	155	#endif
168		156
169	#ifdef I460GX	157	#ifdef I460GX
-		158	#ifdef CONFIG_EGA
-		159	ega_init(EGA_BASE, EGA_VIDEORAM);
-		160	#endif
-		161
170	devno_t devno = device_assign_devno();	162	devno_t devno = device_assign_devno();
171	inr_t inr;	163	inr_t inr;
172		164
173	#ifdef CONFIG_NS16550	165	#ifdef CONFIG_NS16550
174	inr = NS16550_IRQ;	166	inr = NS16550_IRQ;
175	srln_init(stdin);	167	srln_init(stdin);
176	(void) ns16550_init((ns16550_t *)NS16550_BASE, devno, inr, NULL, NULL,	168	(void) ns16550_init((ns16550_t *)NS16550_BASE, devno, inr, NULL, NULL,
177	&srlnin);	169	&srlnin);
178	sysinfo_set_item_val("kbd.type", NULL, KBD_NS16550);	170	sysinfo_set_item_val("kbd.type", NULL, KBD_NS16550);
179	sysinfo_set_item_val("kbd.address.physical", NULL,	171	sysinfo_set_item_val("kbd.address.physical", NULL,
180	(uintptr_t) NS16550_BASE);	172	(uintptr_t) NS16550_BASE);
181	sysinfo_set_item_val("kbd.address.kernel", NULL,	173	sysinfo_set_item_val("kbd.address.kernel", NULL,
182	(uintptr_t) NS16550_BASE);	174	(uintptr_t) NS16550_BASE);
183	#else	175	#else
184	inr = IRQ_KBD;	176	inr = IRQ_KBD;
185	kbrd_init(stdin);	177	kbrd_init(stdin);
186	(void) i8042_init((i8042_t *)I8042_BASE, devno, inr, &kbrdin);	178	(void) i8042_init((i8042_t *)I8042_BASE, devno, inr, &kbrdin);
187	trap_virtual_enable_irqs(1 << inr);	179	trap_virtual_enable_irqs(1 << inr);
188	sysinfo_set_item_val("kbd.type", NULL, KBD_LEGACY);	180	sysinfo_set_item_val("kbd.type", NULL, KBD_LEGACY);
189	sysinfo_set_item_val("kbd.address.physical", NULL,	181	sysinfo_set_item_val("kbd.address.physical", NULL,
190	(uintptr_t) I8042_BASE);	182	(uintptr_t) I8042_BASE);
191	sysinfo_set_item_val("kbd.address.kernel", NULL,	183	sysinfo_set_item_val("kbd.address.kernel", NULL,
192	(uintptr_t) I8042_BASE);	184	(uintptr_t) I8042_BASE);
193	#endif	185	#endif
194	sysinfo_set_item_val("kbd", NULL, true);	186	sysinfo_set_item_val("kbd", NULL, true);
195	sysinfo_set_item_val("kbd.devno", NULL, devno);	187	sysinfo_set_item_val("kbd.devno", NULL, devno);
196	sysinfo_set_item_val("kbd.inr", NULL, inr);	188	sysinfo_set_item_val("kbd.inr", NULL, inr);
197	#endif	189	#endif
198		190
199	sysinfo_set_item_val("ia64_iospace", NULL, true);	191	sysinfo_set_item_val("ia64_iospace", NULL, true);
200	sysinfo_set_item_val("ia64_iospace.address", NULL, true);	192	sysinfo_set_item_val("ia64_iospace.address", NULL, true);
201	sysinfo_set_item_val("ia64_iospace.address.virtual", NULL, IO_OFFSET);	193	sysinfo_set_item_val("ia64_iospace.address.virtual", NULL, IO_OFFSET);
202	}	194	}
203		195
204		196
205	/** Enter userspace and never return. */	197	/** Enter userspace and never return. */
206	void userspace(uspace_arg_t *kernel_uarg)	198	void userspace(uspace_arg_t *kernel_uarg)
207	{	199	{
208	psr_t psr;	200	psr_t psr;
209	rsc_t rsc;	201	rsc_t rsc;
210		202
211	psr.value = psr_read();	203	psr.value = psr_read();
212	psr.cpl = PL_USER;	204	psr.cpl = PL_USER;
213	psr.i = true; /* start with interrupts enabled */	205	psr.i = true; /* start with interrupts enabled */
214	psr.ic = true;	206	psr.ic = true;
215	psr.ri = 0; /* start with instruction #0 */	207	psr.ri = 0; /* start with instruction #0 */
216	psr.bn = 1; /* start in bank 0 */	208	psr.bn = 1; /* start in bank 0 */
217		209
218	asm volatile ("mov %0 = ar.rsc\n" : "=r" (rsc.value));	210	asm volatile ("mov %0 = ar.rsc\n" : "=r" (rsc.value));
219	rsc.loadrs = 0;	211	rsc.loadrs = 0;
220	rsc.be = false;	212	rsc.be = false;
221	rsc.pl = PL_USER;	213	rsc.pl = PL_USER;
222	rsc.mode = 3; /* eager mode */	214	rsc.mode = 3; /* eager mode */
223		215
224	switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry,	216	switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry,
225	((uintptr_t) kernel_uarg->uspace_stack) + PAGE_SIZE -	217	((uintptr_t) kernel_uarg->uspace_stack) + PAGE_SIZE -
226	ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT),	218	ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT),
227	((uintptr_t) kernel_uarg->uspace_stack) + PAGE_SIZE,	219	((uintptr_t) kernel_uarg->uspace_stack) + PAGE_SIZE,
228	(uintptr_t) kernel_uarg->uspace_uarg, psr.value, rsc.value);	220	(uintptr_t) kernel_uarg->uspace_uarg, psr.value, rsc.value);
229		221
230	while (1)	222	while (1)
231	;	223	;
232	}	224	}
233		225
234	/** Set thread-local-storage pointer.	226	/** Set thread-local-storage pointer.
235	*	227	*
236	* We use r13 (a.k.a. tp) for this purpose.	228	* We use r13 (a.k.a. tp) for this purpose.
237	*/	229	*/
238	unative_t sys_tls_set(unative_t addr)	230	unative_t sys_tls_set(unative_t addr)
239	{	231	{
240	return 0;	232	return 0;
241	}	233	}
242		234
243	/** Acquire console back for kernel	235	/** Acquire console back for kernel
244	*	236	*
245	*/	237	*/
246	void arch_grab_console(void)	238	void arch_grab_console(void)
247	{	239	{
248	#ifdef SKI	240	#ifdef SKI
249	ski_kbd_grab();	241	ski_kbd_grab();
250	#endif	242	#endif
251	}	243	}
252		244
253	/** Return console to userspace	245	/** Return console to userspace
254	*	246	*
255	*/	247	*/
256	void arch_release_console(void)	248	void arch_release_console(void)
257	{	249	{
258	#ifdef SKI	250	#ifdef SKI
259	ski_kbd_release();	251	ski_kbd_release();
260	#endif	252	#endif
261	}	253	}
262		254
263	void arch_reboot(void)	255	void arch_reboot(void)
264	{	256	{
265	pio_write_8((ioport8_t *)0x64, 0xfe);	257	pio_write_8((ioport8_t *)0x64, 0xfe);
266	while (1)	258	while (1)
267	;	259	;
268	}	260	}
269		261
270	/** Construct function pointer	262	/** Construct function pointer
271	*	263	*
272	* @param fptr function pointer structure	264	* @param fptr function pointer structure
273	* @param addr function address	265	* @param addr function address
274	* @param caller calling function address	266	* @param caller calling function address
275	*	267	*
276	* @return address of the function pointer	268	* @return address of the function pointer
277	*	269	*
278	*/	270	*/
279	void arch_construct_function(fncptr_t fptr, void addr, void caller)	271	void arch_construct_function(fncptr_t fptr, void addr, void caller)
280	{	272	{
281	fptr->fnc = (unative_t) addr;	273	fptr->fnc = (unative_t) addr;
282	fptr->gp = ((unative_t *) caller)[1];	274	fptr->gp = ((unative_t *) caller)[1];
283		275
284	return (void *) fptr;	276	return (void *) fptr;
285	}	277	}
286		278
287	/** @}	279	/** @}
288	*/	280	*/
289		281

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(root)/trunk/kernel/arch/ia64/src/ia64.c – Rev 4043 → 4060