WebSVN – HelenOS – Diff – /branches/arm/kernel/arch/arm32/src/arm32.c


/*
 * Copyright (c) 2007 Michal Kebrt
 * 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 arm32
 * @{
 */
/** @file
 *  @brief ARM32 architecture specific functions.
 */
 
 
#include <arch.h>
#include <arch/boot.h>
#include <config.h>
#include <arch/console.h>
#include <ddi/device.h>
#include <genarch/fb/fb.h>
#include <genarch/fb/visuals.h>
#include <ddi/irq.h>
#include <arch/debug/print.h>
#include <print.h>
#include <config.h>
#include <interrupt.h>
#include <arch/regutils.h>
#include <arch/machine.h>
#include <userspace.h>
 
/** Information about loaded tasks. */
bootinfo_t bootinfo;
 
 
/** Performs arm32 specific initialization before main_bsp() is called. */
void arch_pre_main(void)
{
    int i;
 
    init.cnt = bootinfo.cnt;
 
    for (i = 0; i < bootinfo.cnt; ++i) {
        init.tasks[i].addr = bootinfo.tasks[i].addr;
        init.tasks[i].size = bootinfo.tasks[i].size;
    }
   
}
 
 
/** Performs arm32 specific initialization before mm is initialized. */
void arch_pre_mm_init(void)
{
    /* It is not assumed by default */
    interrupts_disable();
}
 
 
/** Performs arm32 specific initialization afterr mm is initialized. */
void arch_post_mm_init(void)
{
    machine_hw_map_init();
 
    /* Initialize dispatch table */
    exception_init();
 
    interrupt_init();
   
    console_init(device_assign_devno());
 
#ifdef CONFIG_FB
    fb_init(machine_get_fb_address(), 640, 480, 1920, VISUAL_RGB_8_8_8);
#endif
}
 
 
/** Performs arm32 specific tasks needed after cpu is initialized.
 *
 * Currently the function is empty.
 */
void arch_post_cpu_init(void)
{
}
 
 
/** Performs arm32 specific tasks needed before the multiprocessing is
 * initialized.
 *
 * Currently the function is empty because SMP is not supported.
 */
void arch_pre_smp_init(void)
{
}
 
 
/** Performs arm32 specific tasks needed after the multiprocessing is
 * initialized.
 *
 * Currently the function is empty because SMP is not supported.
 */
void arch_post_smp_init(void)
{
}
 
 
/** Performs arm32 specific tasks needed before the new task is run. */
void before_task_runs_arch(void)
{
    tlb_invalidate_all();
}
 
 
/** Performs arm32 specific tasks needed before the new thread is scheduled.
 *
 * It sets supervisor_sp.
 */
void before_thread_runs_arch(void)
{
    supervisor_sp = (uintptr_t) &THREAD->kstack[THREAD_STACK_SIZE-SP_DELTA];
}
 
 
/** Performs arm32 specific tasks before a thread stops running.
 *
 * Currently the function is empty.
 */
void after_thread_ran_arch(void)
{
}
 
 
/** Halts CPU. */
void cpu_halt(void)
{
    machine_cpu_halt();
}
 
/** @}
 */
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Rev 2408	Rev 2411
1	/*	1	/*
2	* Copyright (c) 2007 Michal Kebrt	2	* Copyright (c) 2007 Michal Kebrt
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 arm32	29	/** @addtogroup arm32
30	* @{	30	* @{
31	*/	31	*/
32	/** @file	32	/** @file
33	* @brief ARM32 architecture specific functions.	33	* @brief ARM32 architecture specific functions.
34	*/	34	*/
35		35
36		36
37	#include <arch.h>	37	#include <arch.h>
38	#include <arch/boot.h>	38	#include <arch/boot.h>
39	#include <config.h>	39	#include <config.h>
40	#include <arch/console.h>	40	#include <arch/console.h>
41	#include <ddi/device.h>	41	#include <ddi/device.h>
42	#include <genarch/fb/fb.h>	42	#include <genarch/fb/fb.h>
43	#include <genarch/fb/visuals.h>	43	#include <genarch/fb/visuals.h>
44	#include <ddi/irq.h>	44	#include <ddi/irq.h>
45	#include <arch/debug/print.h>	45	#include <arch/debug/print.h>
46	#include <print.h>	46	#include <print.h>
47	#include <config.h>	47	#include <config.h>
48	#include <interrupt.h>	48	#include <interrupt.h>
49	#include <arch/regutils.h>	49	#include <arch/regutils.h>
50	#include <arch/machine.h>	50	#include <arch/machine.h>
51	#include <userspace.h>	51	#include <userspace.h>
52		52
53	/** Information about loaded tasks. */	53	/** Information about loaded tasks. */
54	bootinfo_t bootinfo;	54	bootinfo_t bootinfo;
55		55
56		56
57	/** Performs arm32 specific initialization before main_bsp() is called. */	57	/** Performs arm32 specific initialization before main_bsp() is called. */
58	void arch_pre_main(void)	58	void arch_pre_main(void)
59	{	59	{
60	int i;	60	int i;
61		61
62	init.cnt = bootinfo.cnt;	62	init.cnt = bootinfo.cnt;
63		63
64	for (i = 0; i < bootinfo.cnt; ++i) {	64	for (i = 0; i < bootinfo.cnt; ++i) {
65	init.tasks[i].addr = bootinfo.tasks[i].addr;	65	init.tasks[i].addr = bootinfo.tasks[i].addr;
66	init.tasks[i].size = bootinfo.tasks[i].size;	66	init.tasks[i].size = bootinfo.tasks[i].size;
67	}	67	}
68		68
69	}	69	}
70		70
-		71
71	/** Performs arm32 specific initialization before mm is initialized. */	72	/** Performs arm32 specific initialization before mm is initialized. */
72	void arch_pre_mm_init(void)	73	void arch_pre_mm_init(void)
73	{	74	{
74	/* It is not assumed by default */	75	/* It is not assumed by default */
75	interrupts_disable();	76	interrupts_disable();
76	}	77	}
77		78
-		79
78	/** Performs arm32 specific initialization afterr mm is initialized. */	80	/** Performs arm32 specific initialization afterr mm is initialized. */
79	void arch_post_mm_init(void)	81	void arch_post_mm_init(void)
80	{	82	{
81	machine_hw_map_init();	83	machine_hw_map_init();
82		84
83	/* Initialize dispatch table */	85	/* Initialize dispatch table */
84	exception_init();	86	exception_init();
85		87
86	interrupt_init();	88	interrupt_init();
87		89
88	console_init(device_assign_devno());	90	console_init(device_assign_devno());
89		91
90	#ifdef CONFIG_FB	92	#ifdef CONFIG_FB
91	fb_init(machine_get_fb_address(), 640, 480, 1920, VISUAL_RGB_8_8_8);	93	fb_init(machine_get_fb_address(), 640, 480, 1920, VISUAL_RGB_8_8_8);
92	#endif	94	#endif
93	}	95	}
94		96
-		97
95	/** Performs arm32 specific tasks needed after cpu is initialized.	98	/** Performs arm32 specific tasks needed after cpu is initialized.
96	*	99	*
97	* Currently the function is empty.	100	* Currently the function is empty.
98	*/	101	*/
99	void arch_post_cpu_init(void)	102	void arch_post_cpu_init(void)
100	{	103	{
101	}	104	}
102		105
-		106
103	/** Performs arm32 specific tasks needed before the multiprocessing is	107	/** Performs arm32 specific tasks needed before the multiprocessing is
104	* initialized.	108	* initialized.
105	*	109	*
106	* Currently the function is empty because SMP is not supported.	110	* Currently the function is empty because SMP is not supported.
107	*/	111	*/
108	void arch_pre_smp_init(void)	112	void arch_pre_smp_init(void)
109	{	113	{
110	}	114	}
111		115
-		116
112	/** Performs arm32 specific tasks needed after the multiprocessing is	117	/** Performs arm32 specific tasks needed after the multiprocessing is
113	* initialized.	118	* initialized.
114	*	119	*
115	* Currently the function is empty because SMP is not supported.	120	* Currently the function is empty because SMP is not supported.
116	*/	121	*/
117	void arch_post_smp_init(void)	122	void arch_post_smp_init(void)
118	{	123	{
119	}	124	}
120		125
121		126
122	/** Performs arm32 specific tasks needed before the new task is run. */	127	/** Performs arm32 specific tasks needed before the new task is run. */
123	void before_task_runs_arch(void)	128	void before_task_runs_arch(void)
124	{	129	{
125	tlb_invalidate_all();	130	tlb_invalidate_all();
126	}	131	}
127		132
-		133
128	/** Performs arm32 specific tasks needed before the new thread is scheduled.	134	/** Performs arm32 specific tasks needed before the new thread is scheduled.
129	*	135	*
130	* It sets supervisor_sp.	136	* It sets supervisor_sp.
131	*/	137	*/
132	void before_thread_runs_arch(void)	138	void before_thread_runs_arch(void)
133	{	139	{
134	supervisor_sp = (uintptr_t) &THREAD->kstack[THREAD_STACK_SIZE-SP_DELTA];	140	supervisor_sp = (uintptr_t) &THREAD->kstack[THREAD_STACK_SIZE-SP_DELTA];
135	}	141	}
136		142
-		143
137	/** Performs arm32 specific tasks before a thread stops running.	144	/** Performs arm32 specific tasks before a thread stops running.
138	*	145	*
139	* Currently the function is empty.	146	* Currently the function is empty.
140	*/	147	*/
141	void after_thread_ran_arch(void)	148	void after_thread_ran_arch(void)
142	{	149	{
143	}	150	}
144		151
-		152
145	/** Halts CPU. */	153	/** Halts CPU. */
146	void cpu_halt(void)	154	void cpu_halt(void)
147	{	155	{
148	machine_cpu_halt();	156	machine_cpu_halt();
149	}	157	}
150		158
151	/** @}	159	/** @}
152	*/	160	*/
153		161
154		162
155		163
156		164
157		165
158		166
159		167
160		168
161		169
162		170
163		171
164		172
165		173
166		174
167		175

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(root)/branches/arm/kernel/arch/arm32/src/arm32.c – Rev 2408 → 2411