WebSVN – HelenOS – Diff – /branches/tracing/kernel/arch/sparc64/src/sparc64.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 sparc64
 * @{
 */
/** @file
 */
 
#include <arch.h>
#include <debug.h>
#include <config.h>
#include <arch/trap/trap.h>
#include <arch/console.h>
#include <proc/thread.h>
#include <console/console.h>
#include <arch/boot/boot.h>
#include <arch/arch.h>
#include <arch/asm.h>
#include <arch/mm/page.h>
#include <arch/stack.h>
#include <genarch/ofw/ofw_tree.h>
#include <userspace.h>
#include <ddi/irq.h>
 
bootinfo_t bootinfo;
 
/** Perform sparc64 specific initialization before main_bsp() is called. */
void arch_pre_main(void)
{
    /* Copy init task info. */
    init.cnt = bootinfo.taskmap.count;
   
    uint32_t i;
 
    for (i = 0; i < bootinfo.taskmap.count; i++) {
        init.tasks[i].addr = (uintptr_t) bootinfo.taskmap.tasks[i].addr;
        init.tasks[i].size = bootinfo.taskmap.tasks[i].size;
    }
   
    /* Copy boot allocations info. */
    ballocs.base = bootinfo.ballocs.base;
    ballocs.size = bootinfo.ballocs.size;
   
    ofw_tree_init(bootinfo.ofw_root);
}
 
/** Perform sparc64 specific initialization before mm is initialized. */
void arch_pre_mm_init(void)
{
    if (config.cpu_active == 1)
        trap_init();
}
 
/** Perform sparc64 specific initialization afterr mm is initialized. */
void arch_post_mm_init(void)
{
    if (config.cpu_active == 1) {
        /*
         * We have 2^11 different interrupt vectors.
         * But we only create 128 buckets.
         */
        irq_init(1 << 11, 128);
 
        standalone_sparc64_console_init();
    }
}
 
void arch_post_cpu_init(void)
{
}
 
void arch_pre_smp_init(void)
{
}
 
void arch_post_smp_init(void)
{
    static thread_t *t = NULL;
 
 
    if (!t) {
        /*
             * Create thread that polls keyboard.
             */
        t = thread_create(kkbdpoll, NULL, TASK, 0, "kkbdpoll", true);
        if (!t)
            panic("cannot create kkbdpoll\n");
        thread_ready(t);
    }
}
 
/** Calibrate delay loop.
 *
 * On sparc64, we implement delay() by waiting for the TICK register to
 * reach a pre-computed value, as opposed to performing some pre-computed
 * amount of instructions of known duration. We set the delay_loop_const
 * to 1 in order to neutralize the multiplication done by delay().
 */
void calibrate_delay_loop(void)
{
    CPU->delay_loop_const = 1;
}
 
/** Wait several microseconds.
 *
 * We assume that interrupts are already disabled.
 *
 * @param t Microseconds to wait.
 */
void asm_delay_loop(const uint32_t usec)
{
    uint64_t stop = tick_read() + (uint64_t) usec * (uint64_t)
        CPU->arch.clock_frequency / 1000000;
 
    while (tick_read() < stop)
        ;
}
 
/** Switch to userspace. */
void userspace(uspace_arg_t *kernel_uarg)
{
    switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry,
        ((uintptr_t) kernel_uarg->uspace_stack) + STACK_SIZE
        - (ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT) + STACK_BIAS),
        (uintptr_t) kernel_uarg->uspace_uarg);
 
    for (;;)
        ;
    /* not reached */
}
 
void arch_reboot(void)
{
    // TODO
    while (1);
}
 
/** @}
 */
 

Rev 2787	Rev 3675
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 sparc64	29	/** @addtogroup sparc64
30	* @{	30	* @{
31	*/	31	*/
32	/** @file	32	/** @file
33	*/	33	*/
34		34
35	#include <arch.h>	35	#include <arch.h>
36	#include <debug.h>	36	#include <debug.h>
37	#include <config.h>	37	#include <config.h>
38	#include <arch/trap/trap.h>	38	#include <arch/trap/trap.h>
39	#include <arch/console.h>	39	#include <arch/console.h>
40	#include <proc/thread.h>	40	#include <proc/thread.h>
41	#include <console/console.h>	41	#include <console/console.h>
42	#include <arch/boot/boot.h>	42	#include <arch/boot/boot.h>
43	#include <arch/arch.h>	43	#include <arch/arch.h>
44	#include <arch/asm.h>	44	#include <arch/asm.h>
45	#include <arch/mm/page.h>	45	#include <arch/mm/page.h>
46	#include <arch/stack.h>	46	#include <arch/stack.h>
47	#include <genarch/ofw/ofw_tree.h>	47	#include <genarch/ofw/ofw_tree.h>
48	#include <userspace.h>	48	#include <userspace.h>
49	#include <ddi/irq.h>	49	#include <ddi/irq.h>
50		50
51	bootinfo_t bootinfo;	51	bootinfo_t bootinfo;
52		52
53	/** Perform sparc64 specific initialization before main_bsp() is called. */	53	/** Perform sparc64 specific initialization before main_bsp() is called. */
54	void arch_pre_main(void)	54	void arch_pre_main(void)
55	{	55	{
56	/* Copy init task info. */	56	/* Copy init task info. */
57	init.cnt = bootinfo.taskmap.count;	57	init.cnt = bootinfo.taskmap.count;
58		58
59	uint32_t i;	59	uint32_t i;
60		60
61	for (i = 0; i < bootinfo.taskmap.count; i++) {	61	for (i = 0; i < bootinfo.taskmap.count; i++) {
62	init.tasks[i].addr = (uintptr_t) bootinfo.taskmap.tasks[i].addr;	62	init.tasks[i].addr = (uintptr_t) bootinfo.taskmap.tasks[i].addr;
63	init.tasks[i].size = bootinfo.taskmap.tasks[i].size;	63	init.tasks[i].size = bootinfo.taskmap.tasks[i].size;
64	}	64	}
65		65
66	/* Copy boot allocations info. */	66	/* Copy boot allocations info. */
67	ballocs.base = bootinfo.ballocs.base;	67	ballocs.base = bootinfo.ballocs.base;
68	ballocs.size = bootinfo.ballocs.size;	68	ballocs.size = bootinfo.ballocs.size;
69		69
70	ofw_tree_init(bootinfo.ofw_root);	70	ofw_tree_init(bootinfo.ofw_root);
71	}	71	}
72		72
73	/** Perform sparc64 specific initialization before mm is initialized. */	73	/** Perform sparc64 specific initialization before mm is initialized. */
74	void arch_pre_mm_init(void)	74	void arch_pre_mm_init(void)
75	{	75	{
76	if (config.cpu_active == 1)	76	if (config.cpu_active == 1)
77	trap_init();	77	trap_init();
78	}	78	}
79		79
80	/** Perform sparc64 specific initialization afterr mm is initialized. */	80	/** Perform sparc64 specific initialization afterr mm is initialized. */
81	void arch_post_mm_init(void)	81	void arch_post_mm_init(void)
82	{	82	{
83	if (config.cpu_active == 1) {	83	if (config.cpu_active == 1) {
84	/*	84	/*
85	* We have 2^11 different interrupt vectors.	85	* We have 2^11 different interrupt vectors.
86	* But we only create 128 buckets.	86	* But we only create 128 buckets.
87	*/	87	*/
88	irq_init(1 << 11, 128);	88	irq_init(1 << 11, 128);
89		89
90	standalone_sparc64_console_init();	90	standalone_sparc64_console_init();
91	}	91	}
92	}	92	}
93		93
94	void arch_post_cpu_init(void)	94	void arch_post_cpu_init(void)
95	{	95	{
96	}	96	}
97		97
98	void arch_pre_smp_init(void)	98	void arch_pre_smp_init(void)
99	{	99	{
100	}	100	}
101		101
102	void arch_post_smp_init(void)	102	void arch_post_smp_init(void)
103	{	103	{
104	static thread_t *t = NULL;	104	static thread_t *t = NULL;
105		105
106		106
107	if (!t) {	107	if (!t) {
108	/*	108	/*
109	* Create thread that polls keyboard.	109	* Create thread that polls keyboard.
110	*/	110	*/
111	t = thread_create(kkbdpoll, NULL, TASK, 0, "kkbdpoll", true);	111	t = thread_create(kkbdpoll, NULL, TASK, 0, "kkbdpoll", true);
112	if (!t)	112	if (!t)
113	panic("cannot create kkbdpoll\n");	113	panic("cannot create kkbdpoll\n");
114	thread_ready(t);	114	thread_ready(t);
115	}	115	}
116	}	116	}
117		117
118	/** Calibrate delay loop.	118	/** Calibrate delay loop.
119	*	119	*
120	* On sparc64, we implement delay() by waiting for the TICK register to	120	* On sparc64, we implement delay() by waiting for the TICK register to
121	* reach a pre-computed value, as opposed to performing some pre-computed	121	* reach a pre-computed value, as opposed to performing some pre-computed
122	* amount of instructions of known duration. We set the delay_loop_const	122	* amount of instructions of known duration. We set the delay_loop_const
123	* to 1 in order to neutralize the multiplication done by delay().	123	* to 1 in order to neutralize the multiplication done by delay().
124	*/	124	*/
125	void calibrate_delay_loop(void)	125	void calibrate_delay_loop(void)
126	{	126	{
127	CPU->delay_loop_const = 1;	127	CPU->delay_loop_const = 1;
128	}	128	}
129		129
130	/** Wait several microseconds.	130	/** Wait several microseconds.
131	*	131	*
132	* We assume that interrupts are already disabled.	132	* We assume that interrupts are already disabled.
133	*	133	*
134	* @param t Microseconds to wait.	134	* @param t Microseconds to wait.
135	*/	135	*/
136	void asm_delay_loop(const uint32_t usec)	136	void asm_delay_loop(const uint32_t usec)
137	{	137	{
138	uint64_t stop = tick_read() + (uint64_t) usec * (uint64_t)	138	uint64_t stop = tick_read() + (uint64_t) usec * (uint64_t)
139	CPU->arch.clock_frequency / 1000000;	139	CPU->arch.clock_frequency / 1000000;
140		140
141	while (tick_read() < stop)	141	while (tick_read() < stop)
142	;	142	;
143	}	143	}
144		144
145	/** Switch to userspace. */	145	/** Switch to userspace. */
146	void userspace(uspace_arg_t *kernel_uarg)	146	void userspace(uspace_arg_t *kernel_uarg)
147	{	147	{
148	switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry,	148	switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry,
149	((uintptr_t) kernel_uarg->uspace_stack) + STACK_SIZE	149	((uintptr_t) kernel_uarg->uspace_stack) + STACK_SIZE
150	- (ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT) + STACK_BIAS),	150	- (ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT) + STACK_BIAS),
151	(uintptr_t) kernel_uarg->uspace_uarg);	151	(uintptr_t) kernel_uarg->uspace_uarg);
152		152
153	for (;;)	153	for (;;)
154	;	154	;
155	/* not reached */	155	/* not reached */
156	}	156	}
157		157
158	void arch_reboot(void)	158	void arch_reboot(void)
159	{	159	{
160	// TODO	160	// TODO
161	while (1);	161	while (1);
162	}	162	}
163		163
164	/** @}	164	/** @}
165	*/	165	*/
166		166

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(root)/branches/tracing/kernel/arch/sparc64/src/sparc64.c – Rev 2787 → 3675