WebSVN – HelenOS – Diff – /branches/sparc/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 <arch/drivers/sgcn.h>
#include <arch/drivers/simics_output.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);
 
#if defined (CONFIG_SIMICS_OUTPUT)
        sgcn_init();
#else
        standalone_sparc64_console_init();
#endif
    }
}
 
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 3493	Rev 3502
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 <arch/drivers/sgcn.h>
41	#include <arch/drivers/simics_output.h>	42	#include <arch/drivers/simics_output.h>
42	#include <console/console.h>	43	#include <console/console.h>
43	#include <arch/boot/boot.h>	44	#include <arch/boot/boot.h>
44	#include <arch/arch.h>	45	#include <arch/arch.h>
45	#include <arch/asm.h>	46	#include <arch/asm.h>
46	#include <arch/mm/page.h>	47	#include <arch/mm/page.h>
47	#include <arch/stack.h>	48	#include <arch/stack.h>
48	#include <genarch/ofw/ofw_tree.h>	49	#include <genarch/ofw/ofw_tree.h>
49	#include <userspace.h>	50	#include <userspace.h>
50	#include <ddi/irq.h>	51	#include <ddi/irq.h>
51		52
52	bootinfo_t bootinfo;	53	bootinfo_t bootinfo;
53		54
54	/** Perform sparc64 specific initialization before main_bsp() is called. */	55	/** Perform sparc64 specific initialization before main_bsp() is called. */
55	void arch_pre_main(void)	56	void arch_pre_main(void)
56	{	57	{
57	/* Copy init task info. */	58	/* Copy init task info. */
58	init.cnt = bootinfo.taskmap.count;	59	init.cnt = bootinfo.taskmap.count;
59		60
60	uint32_t i;	61	uint32_t i;
61		62
62	for (i = 0; i < bootinfo.taskmap.count; i++) {	63	for (i = 0; i < bootinfo.taskmap.count; i++) {
63	init.tasks[i].addr = (uintptr_t) bootinfo.taskmap.tasks[i].addr;	64	init.tasks[i].addr = (uintptr_t) bootinfo.taskmap.tasks[i].addr;
64	init.tasks[i].size = bootinfo.taskmap.tasks[i].size;	65	init.tasks[i].size = bootinfo.taskmap.tasks[i].size;
65	}	66	}
66		67
67	/* Copy boot allocations info. */	68	/* Copy boot allocations info. */
68	ballocs.base = bootinfo.ballocs.base;	69	ballocs.base = bootinfo.ballocs.base;
69	ballocs.size = bootinfo.ballocs.size;	70	ballocs.size = bootinfo.ballocs.size;
70		71
71	ofw_tree_init(bootinfo.ofw_root);	72	ofw_tree_init(bootinfo.ofw_root);
72	}	73	}
73		74
74	/** Perform sparc64 specific initialization before mm is initialized. */	75	/** Perform sparc64 specific initialization before mm is initialized. */
75	void arch_pre_mm_init(void)	76	void arch_pre_mm_init(void)
76	{	77	{
77	if (config.cpu_active == 1)	78	if (config.cpu_active == 1)
78	trap_init();	79	trap_init();
79	}	80	}
80		81
81	/** Perform sparc64 specific initialization afterr mm is initialized. */	82	/** Perform sparc64 specific initialization afterr mm is initialized. */
82	void arch_post_mm_init(void)	83	void arch_post_mm_init(void)
83	{	84	{
84	if (config.cpu_active == 1) {	85	if (config.cpu_active == 1) {
85	/*	86	/*
86	* We have 2^11 different interrupt vectors.	87	* We have 2^11 different interrupt vectors.
87	* But we only create 128 buckets.	88	* But we only create 128 buckets.
88	*/	89	*/
89	irq_init(1 << 11, 128);	90	irq_init(1 << 11, 128);
90		91
91	#if defined (CONFIG_SIMICS_OUTPUT)	92	#if defined (CONFIG_SIMICS_OUTPUT)
92	simics_output_init();	93	sgcn_init();
93	#else	94	#else
94	standalone_sparc64_console_init();	95	standalone_sparc64_console_init();
95	#endif	96	#endif
96	}	97	}
97	}	98	}
98		99
99	void arch_post_cpu_init(void)	100	void arch_post_cpu_init(void)
100	{	101	{
101	}	102	}
102		103
103	void arch_pre_smp_init(void)	104	void arch_pre_smp_init(void)
104	{	105	{
105	}	106	}
106		107
107	void arch_post_smp_init(void)	108	void arch_post_smp_init(void)
108	{	109	{
109	static thread_t *t = NULL;	110	static thread_t *t = NULL;
110		111
111		112
112	if (!t) {	113	if (!t) {
113	/*	114	/*
114	* Create thread that polls keyboard.	115	* Create thread that polls keyboard.
115	*/	116	*/
116	t = thread_create(kkbdpoll, NULL, TASK, 0, "kkbdpoll", true);	117	t = thread_create(kkbdpoll, NULL, TASK, 0, "kkbdpoll", true);
117	if (!t)	118	if (!t)
118	panic("cannot create kkbdpoll\n");	119	panic("cannot create kkbdpoll\n");
119	thread_ready(t);	120	thread_ready(t);
120	}	121	}
121	}	122	}
122		123
123	/** Calibrate delay loop.	124	/** Calibrate delay loop.
124	*	125	*
125	* On sparc64, we implement delay() by waiting for the TICK register to	126	* On sparc64, we implement delay() by waiting for the TICK register to
126	* reach a pre-computed value, as opposed to performing some pre-computed	127	* reach a pre-computed value, as opposed to performing some pre-computed
127	* amount of instructions of known duration. We set the delay_loop_const	128	* amount of instructions of known duration. We set the delay_loop_const
128	* to 1 in order to neutralize the multiplication done by delay().	129	* to 1 in order to neutralize the multiplication done by delay().
129	*/	130	*/
130	void calibrate_delay_loop(void)	131	void calibrate_delay_loop(void)
131	{	132	{
132	CPU->delay_loop_const = 1;	133	CPU->delay_loop_const = 1;
133	}	134	}
134		135
135	/** Wait several microseconds.	136	/** Wait several microseconds.
136	*	137	*
137	* We assume that interrupts are already disabled.	138	* We assume that interrupts are already disabled.
138	*	139	*
139	* @param t Microseconds to wait.	140	* @param t Microseconds to wait.
140	*/	141	*/
141	void asm_delay_loop(const uint32_t usec)	142	void asm_delay_loop(const uint32_t usec)
142	{	143	{
143	uint64_t stop = tick_read() + (uint64_t) usec * (uint64_t)	144	uint64_t stop = tick_read() + (uint64_t) usec * (uint64_t)
144	CPU->arch.clock_frequency / 1000000;	145	CPU->arch.clock_frequency / 1000000;
145		146
146	while (tick_read() < stop)	147	while (tick_read() < stop)
147	;	148	;
148	}	149	}
149		150
150	/** Switch to userspace. */	151	/** Switch to userspace. */
151	void userspace(uspace_arg_t *kernel_uarg)	152	void userspace(uspace_arg_t *kernel_uarg)
152	{	153	{
153	switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry,	154	switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry,
154	((uintptr_t) kernel_uarg->uspace_stack) + STACK_SIZE	155	((uintptr_t) kernel_uarg->uspace_stack) + STACK_SIZE
155	- (ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT) + STACK_BIAS),	156	- (ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT) + STACK_BIAS),
156	(uintptr_t) kernel_uarg->uspace_uarg);	157	(uintptr_t) kernel_uarg->uspace_uarg);
157		158
158	for (;;)	159	for (;;)
159	;	160	;
160	/* not reached */	161	/* not reached */
161	}	162	}
162		163
163	void arch_reboot(void)	164	void arch_reboot(void)
164	{	165	{
165	// TODO	166	// TODO
166	while (1);	167	while (1);
167	}	168	}
168		169
169	/** @}	170	/** @}
170	*/	171	*/
171		172

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(root)/branches/sparc/kernel/arch/sparc64/src/sparc64.c – Rev 3493 → 3502