WebSVN – HelenOS – Diff – /branches/dynload/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 <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
    indev_t *in;
    in = skiin_init();
    if (in)
        srln_init(in);
    skiout_init();
#endif
   
#ifdef CONFIG_EGA
    ega_init(EGA_BASE, EGA_VIDEORAM);
#endif
   
#ifdef CONFIG_NS16550
 
    indev_t *kbrdin_ns16550
        = ns16550_init((ns16550_t *) NS16550_BASE, NS16550_IRQ, NULL, NULL);
    if (kbrdin_ns16550)
        srln_init(kbrdin_ns16550);
   
    sysinfo_set_item_val("kbd", NULL, true);
 
    sysinfo_set_item_val("kbd.inr", NULL, NS16550_IRQ);
    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);
#endif
   
#ifdef CONFIG_I8042
 
    indev_t *kbrdin_i8042 = i8042_init((i8042_t *) I8042_BASE, IRQ_KBD);
    if (kbrdin_i8042)
        kbrd_init(kbrdin_i8042);
   
    sysinfo_set_item_val("kbd", NULL, true);
 
    sysinfo_set_item_val("kbd.inr", NULL, IRQ_KBD);
    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("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 4346	Rev 4347
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>	-
54	#include <arch/bootinfo.h>	53	#include <arch/bootinfo.h>
55	#include <genarch/drivers/legacy/ia32/io.h>	54	#include <genarch/drivers/legacy/ia32/io.h>
56	#include <genarch/drivers/ega/ega.h>	55	#include <genarch/drivers/ega/ega.h>
57	#include <genarch/kbrd/kbrd.h>	56	#include <genarch/kbrd/kbrd.h>
58	#include <genarch/srln/srln.h>	57	#include <genarch/srln/srln.h>
59	#include <genarch/drivers/i8042/i8042.h>	58	#include <genarch/drivers/i8042/i8042.h>
60	#include <genarch/drivers/ns16550/ns16550.h>	59	#include <genarch/drivers/ns16550/ns16550.h>
61	#include <arch/drivers/kbd.h>	60	#include <arch/drivers/kbd.h>
62	#include <smp/smp.h>	61	#include <smp/smp.h>
63	#include <smp/ipi.h>	62	#include <smp/ipi.h>
64	#include <arch/atomic.h>	63	#include <arch/atomic.h>
65	#include <panic.h>	64	#include <panic.h>
66	#include <print.h>	65	#include <print.h>
67	#include <sysinfo/sysinfo.h>	66	#include <sysinfo/sysinfo.h>
68	#include <string.h>	67	#include <string.h>
69		68
70	/* NS16550 as a COM 1 */	69	/* NS16550 as a COM 1 */
71	#define NS16550_IRQ (4 + LEGACY_INTERRUPT_BASE)	70	#define NS16550_IRQ (4 + LEGACY_INTERRUPT_BASE)
72		71
73	bootinfo_t *bootinfo;	72	bootinfo_t *bootinfo;
74		73
75	static uint64_t iosapic_base = 0xfec00000;	74	static uint64_t iosapic_base = 0xfec00000;
76		75
77	/** Performs ia64-specific initialization before main_bsp() is called. */	76	/** Performs ia64-specific initialization before main_bsp() is called. */
78	void arch_pre_main(void)	77	void arch_pre_main(void)
79	{	78	{
80	/* Setup usermode init tasks. */	79	/* Setup usermode init tasks. */
81		80
82	unsigned int i;	81	unsigned int i;
83		82
84	init.cnt = bootinfo->taskmap.count;	83	init.cnt = bootinfo->taskmap.count;
85		84
86	for (i = 0; i < init.cnt; i++) {	85	for (i = 0; i < init.cnt; i++) {
87	init.tasks[i].addr =	86	init.tasks[i].addr =
88	((unsigned long) bootinfo->taskmap.tasks[i].addr) \|	87	((unsigned long) bootinfo->taskmap.tasks[i].addr) \|
89	VRN_MASK;	88	VRN_MASK;
90	init.tasks[i].size = bootinfo->taskmap.tasks[i].size;	89	init.tasks[i].size = bootinfo->taskmap.tasks[i].size;
91	strncpy(init.tasks[i].name, bootinfo->taskmap.tasks[i].name,	90	strncpy(init.tasks[i].name, bootinfo->taskmap.tasks[i].name,
92	CONFIG_TASK_NAME_BUFLEN);	91	CONFIG_TASK_NAME_BUFLEN);
93	}	92	}
94	}	93	}
95		94
96	void arch_pre_mm_init(void)	95	void arch_pre_mm_init(void)
97	{	96	{
98	/*	97	/*
99	* Set Interruption Vector Address (i.e. location of interruption vector	98	* Set Interruption Vector Address (i.e. location of interruption vector
100	* table).	99	* table).
101	*/	100	*/
102	iva_write((uintptr_t) &ivt);	101	iva_write((uintptr_t) &ivt);
103	srlz_d();	102	srlz_d();
104		103
105	}	104	}
106		105
107	static void iosapic_init(void)	106	static void iosapic_init(void)
108	{	107	{
109	uint64_t IOSAPIC = PA2KA((unative_t)(iosapic_base)) \| FW_OFFSET;	108	uint64_t IOSAPIC = PA2KA((unative_t)(iosapic_base)) \| FW_OFFSET;
110	int i;	109	int i;
111		110
112	int myid, myeid;	111	int myid, myeid;
113		112
114	myid = ia64_get_cpu_id();	113	myid = ia64_get_cpu_id();
115	myeid = ia64_get_cpu_eid();	114	myeid = ia64_get_cpu_eid();
116		115
117	for (i = 0; i < 16; i++) {	116	for (i = 0; i < 16; i++) {
118	if (i == 2)	117	if (i == 2)
119	continue; /* Disable Cascade interrupt */	118	continue; /* Disable Cascade interrupt */
120	((uint32_t )(IOSAPIC + 0x00))[0] = 0x10 + 2 i;	119	((uint32_t )(IOSAPIC + 0x00))[0] = 0x10 + 2 i;
121	srlz_d();	120	srlz_d();
122	((uint32_t *)(IOSAPIC + 0x10))[0] = LEGACY_INTERRUPT_BASE + i;	121	((uint32_t *)(IOSAPIC + 0x10))[0] = LEGACY_INTERRUPT_BASE + i;
123	srlz_d();	122	srlz_d();
124	((uint32_t )(IOSAPIC + 0x00))[0] = 0x10 + 2 i + 1;	123	((uint32_t )(IOSAPIC + 0x00))[0] = 0x10 + 2 i + 1;
125	srlz_d();	124	srlz_d();
126	((uint32_t *)(IOSAPIC + 0x10))[0] = myid << (56 - 32) \|	125	((uint32_t *)(IOSAPIC + 0x10))[0] = myid << (56 - 32) \|
127	myeid << (48 - 32);	126	myeid << (48 - 32);
128	srlz_d();	127	srlz_d();
129	}	128	}
130		129
131	}	130	}
132		131
133	void arch_post_mm_init(void)	132	void arch_post_mm_init(void)
134	{	133	{
135	if (config.cpu_active == 1) {	134	if (config.cpu_active == 1) {
136	iosapic_init();	135	iosapic_init();
137	irq_init(INR_COUNT, INR_COUNT);	136	irq_init(INR_COUNT, INR_COUNT);
138	}	137	}
139	it_init();	138	it_init();
140	}	139	}
141		140
142	void arch_post_cpu_init(void)	141	void arch_post_cpu_init(void)
143	{	142	{
144	}	143	}
145		144
146	void arch_pre_smp_init(void)	145	void arch_pre_smp_init(void)
147	{	146	{
148	}	147	}
149		148
150	void arch_post_smp_init(void)	149	void arch_post_smp_init(void)
151	{	150	{
152	#ifdef SKI	151	#ifdef SKI
153	indev_t *in;	152	indev_t *in;
154	in = skiin_init();	153	in = skiin_init();
155	if (in)	154	if (in)
156	srln_init(in);	155	srln_init(in);
157	skiout_init();	156	skiout_init();
158	#endif	157	#endif
159		158
160	#ifdef CONFIG_EGA	159	#ifdef CONFIG_EGA
161	ega_init(EGA_BASE, EGA_VIDEORAM);	160	ega_init(EGA_BASE, EGA_VIDEORAM);
162	#endif	161	#endif
163		162
164	#ifdef CONFIG_NS16550	163	#ifdef CONFIG_NS16550
165	devno_t devno_ns16550 = device_assign_devno();	-
166	indev_t *kbrdin_ns16550	164	indev_t *kbrdin_ns16550
167	= ns16550_init((ns16550_t *) NS16550_BASE, devno_ns16550, NS16550_IRQ, NULL, NULL);	165	= ns16550_init((ns16550_t *) NS16550_BASE, NS16550_IRQ, NULL, NULL);
168	if (kbrdin_ns16550)	166	if (kbrdin_ns16550)
169	srln_init(kbrdin_ns16550);	167	srln_init(kbrdin_ns16550);
170		168
171	sysinfo_set_item_val("kbd", NULL, true);	169	sysinfo_set_item_val("kbd", NULL, true);
172	sysinfo_set_item_val("kbd.devno", NULL, devno_ns16550);	-
173	sysinfo_set_item_val("kbd.inr", NULL, NS16550_IRQ);	170	sysinfo_set_item_val("kbd.inr", NULL, NS16550_IRQ);
174	sysinfo_set_item_val("kbd.type", NULL, KBD_NS16550);	171	sysinfo_set_item_val("kbd.type", NULL, KBD_NS16550);
175	sysinfo_set_item_val("kbd.address.physical", NULL,	172	sysinfo_set_item_val("kbd.address.physical", NULL,
176	(uintptr_t) NS16550_BASE);	173	(uintptr_t) NS16550_BASE);
177	sysinfo_set_item_val("kbd.address.kernel", NULL,	174	sysinfo_set_item_val("kbd.address.kernel", NULL,
178	(uintptr_t) NS16550_BASE);	175	(uintptr_t) NS16550_BASE);
179	#endif	176	#endif
180		177
181	#ifdef CONFIG_I8042	178	#ifdef CONFIG_I8042
182	devno_t devno_i8042 = device_assign_devno();	-
183	indev_t kbrdin_i8042 = i8042_init((i8042_t ) I8042_BASE, devno_i8042, IRQ_KBD);	179	indev_t kbrdin_i8042 = i8042_init((i8042_t ) I8042_BASE, IRQ_KBD);
184	if (kbrdin_i8042)	180	if (kbrdin_i8042)
185	kbrd_init(kbrdin_i8042);	181	kbrd_init(kbrdin_i8042);
186		182
187	sysinfo_set_item_val("kbd", NULL, true);	183	sysinfo_set_item_val("kbd", NULL, true);
188	sysinfo_set_item_val("kbd.devno", NULL, devno_i8042);	-
189	sysinfo_set_item_val("kbd.inr", NULL, IRQ_KBD);	184	sysinfo_set_item_val("kbd.inr", NULL, IRQ_KBD);
190	sysinfo_set_item_val("kbd.type", NULL, KBD_LEGACY);	185	sysinfo_set_item_val("kbd.type", NULL, KBD_LEGACY);
191	sysinfo_set_item_val("kbd.address.physical", NULL,	186	sysinfo_set_item_val("kbd.address.physical", NULL,
192	(uintptr_t) I8042_BASE);	187	(uintptr_t) I8042_BASE);
193	sysinfo_set_item_val("kbd.address.kernel", NULL,	188	sysinfo_set_item_val("kbd.address.kernel", NULL,
194	(uintptr_t) I8042_BASE);	189	(uintptr_t) I8042_BASE);
195	#endif	190	#endif
196		191
197	sysinfo_set_item_val("ia64_iospace", NULL, true);	192	sysinfo_set_item_val("ia64_iospace", NULL, true);
198	sysinfo_set_item_val("ia64_iospace.address", NULL, true);	193	sysinfo_set_item_val("ia64_iospace.address", NULL, true);
199	sysinfo_set_item_val("ia64_iospace.address.virtual", NULL, IO_OFFSET);	194	sysinfo_set_item_val("ia64_iospace.address.virtual", NULL, IO_OFFSET);
200	}	195	}
201		196
202		197
203	/** Enter userspace and never return. */	198	/** Enter userspace and never return. */
204	void userspace(uspace_arg_t *kernel_uarg)	199	void userspace(uspace_arg_t *kernel_uarg)
205	{	200	{
206	psr_t psr;	201	psr_t psr;
207	rsc_t rsc;	202	rsc_t rsc;
208		203
209	psr.value = psr_read();	204	psr.value = psr_read();
210	psr.cpl = PL_USER;	205	psr.cpl = PL_USER;
211	psr.i = true; /* start with interrupts enabled */	206	psr.i = true; /* start with interrupts enabled */
212	psr.ic = true;	207	psr.ic = true;
213	psr.ri = 0; /* start with instruction #0 */	208	psr.ri = 0; /* start with instruction #0 */
214	psr.bn = 1; /* start in bank 0 */	209	psr.bn = 1; /* start in bank 0 */
215		210
216	asm volatile ("mov %0 = ar.rsc\n" : "=r" (rsc.value));	211	asm volatile ("mov %0 = ar.rsc\n" : "=r" (rsc.value));
217	rsc.loadrs = 0;	212	rsc.loadrs = 0;
218	rsc.be = false;	213	rsc.be = false;
219	rsc.pl = PL_USER;	214	rsc.pl = PL_USER;
220	rsc.mode = 3; /* eager mode */	215	rsc.mode = 3; /* eager mode */
221		216
222	switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry,	217	switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry,
223	((uintptr_t) kernel_uarg->uspace_stack) + PAGE_SIZE -	218	((uintptr_t) kernel_uarg->uspace_stack) + PAGE_SIZE -
224	ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT),	219	ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT),
225	((uintptr_t) kernel_uarg->uspace_stack) + PAGE_SIZE,	220	((uintptr_t) kernel_uarg->uspace_stack) + PAGE_SIZE,
226	(uintptr_t) kernel_uarg->uspace_uarg, psr.value, rsc.value);	221	(uintptr_t) kernel_uarg->uspace_uarg, psr.value, rsc.value);
227		222
228	while (1)	223	while (1)
229	;	224	;
230	}	225	}
231		226
232	/** Set thread-local-storage pointer.	227	/** Set thread-local-storage pointer.
233	*	228	*
234	* We use r13 (a.k.a. tp) for this purpose.	229	* We use r13 (a.k.a. tp) for this purpose.
235	*/	230	*/
236	unative_t sys_tls_set(unative_t addr)	231	unative_t sys_tls_set(unative_t addr)
237	{	232	{
238	return 0;	233	return 0;
239	}	234	}
240		235
241	/** Acquire console back for kernel	236	/** Acquire console back for kernel
242	*	237	*
243	*/	238	*/
244	void arch_grab_console(void)	239	void arch_grab_console(void)
245	{	240	{
246	#ifdef SKI	241	#ifdef SKI
247	ski_kbd_grab();	242	ski_kbd_grab();
248	#endif	243	#endif
249	}	244	}
250		245
251	/** Return console to userspace	246	/** Return console to userspace
252	*	247	*
253	*/	248	*/
254	void arch_release_console(void)	249	void arch_release_console(void)
255	{	250	{
256	#ifdef SKI	251	#ifdef SKI
257	ski_kbd_release();	252	ski_kbd_release();
258	#endif	253	#endif
259	}	254	}
260		255
261	void arch_reboot(void)	256	void arch_reboot(void)
262	{	257	{
263	pio_write_8((ioport8_t *)0x64, 0xfe);	258	pio_write_8((ioport8_t *)0x64, 0xfe);
264	while (1)	259	while (1)
265	;	260	;
266	}	261	}
267		262
268	/** Construct function pointer	263	/** Construct function pointer
269	*	264	*
270	* @param fptr function pointer structure	265	* @param fptr function pointer structure
271	* @param addr function address	266	* @param addr function address
272	* @param caller calling function address	267	* @param caller calling function address
273	*	268	*
274	* @return address of the function pointer	269	* @return address of the function pointer
275	*	270	*
276	*/	271	*/
277	void arch_construct_function(fncptr_t fptr, void addr, void caller)	272	void arch_construct_function(fncptr_t fptr, void addr, void caller)
278	{	273	{
279	fptr->fnc = (unative_t) addr;	274	fptr->fnc = (unative_t) addr;
280	fptr->gp = ((unative_t *) caller)[1];	275	fptr->gp = ((unative_t *) caller)[1];
281		276
282	return (void *) fptr;	277	return (void *) fptr;
283	}	278	}
284		279
285	/** @}	280	/** @}
286	*/	281	*/
287		282

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(root)/branches/dynload/kernel/arch/ia64/src/ia64.c – Rev 4346 → 4347