WebSVN – HelenOS – Diff – /branches/dynload/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)
{
    unsigned 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 exception dispatch table */
    exception_init();
 
    interrupt_init();
   
    console_init(device_assign_devno());
 
#ifdef CONFIG_FB
    fb_properties_t prop = {
        .addr = machine_get_fb_address(),
        .offset = 0,
        .x = 640,
        .y = 480,
        .scan = 1920,
        .visual = VISUAL_RGB_8_8_8,
    };
    fb_init(&prop);
#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)
{
    uint8_t *stck;
   
    stck = &THREAD->kstack[THREAD_STACK_SIZE - SP_DELTA];
    supervisor_sp = (uintptr_t) stck;
}
 
/** 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();
}
 
/** Reboot. */
void arch_reboot()
{
    /* not implemented */
    for (;;)
        ;
}
 
/** @}
 */
 

Rev 2927	Rev 3674
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	#include <arch.h>	36	#include <arch.h>
37	#include <arch/boot.h>	37	#include <arch/boot.h>
38	#include <config.h>	38	#include <config.h>
39	#include <arch/console.h>	39	#include <arch/console.h>
40	#include <ddi/device.h>	40	#include <ddi/device.h>
41	#include <genarch/fb/fb.h>	41	#include <genarch/fb/fb.h>
42	#include <genarch/fb/visuals.h>	42	#include <genarch/fb/visuals.h>
43	#include <ddi/irq.h>	43	#include <ddi/irq.h>
44	#include <arch/debug/print.h>	44	#include <arch/debug/print.h>
45	#include <print.h>	45	#include <print.h>
46	#include <config.h>	46	#include <config.h>
47	#include <interrupt.h>	47	#include <interrupt.h>
48	#include <arch/regutils.h>	48	#include <arch/regutils.h>
49	#include <arch/machine.h>	49	#include <arch/machine.h>
50	#include <userspace.h>	50	#include <userspace.h>
51		51
52	/** Information about loaded tasks. */	52	/** Information about loaded tasks. */
53	bootinfo_t bootinfo;	53	bootinfo_t bootinfo;
54		54
55	/** Performs arm32 specific initialization before main_bsp() is called. */	55	/** Performs arm32 specific initialization before main_bsp() is called. */
56	void arch_pre_main(void)	56	void arch_pre_main(void)
57	{	57	{
58	unsigned int i;	58	unsigned int i;
59		59
60	init.cnt = bootinfo.cnt;	60	init.cnt = bootinfo.cnt;
61		61
62	for (i = 0; i < bootinfo.cnt; ++i) {	62	for (i = 0; i < bootinfo.cnt; ++i) {
63	init.tasks[i].addr = bootinfo.tasks[i].addr;	63	init.tasks[i].addr = bootinfo.tasks[i].addr;
64	init.tasks[i].size = bootinfo.tasks[i].size;	64	init.tasks[i].size = bootinfo.tasks[i].size;
65	}	65	}
66		66
67	}	67	}
68		68
69	/** Performs arm32 specific initialization before mm is initialized. */	69	/** Performs arm32 specific initialization before mm is initialized. */
70	void arch_pre_mm_init(void)	70	void arch_pre_mm_init(void)
71	{	71	{
72	/* It is not assumed by default */	72	/* It is not assumed by default */
73	interrupts_disable();	73	interrupts_disable();
74	}	74	}
75		75
76	/** Performs arm32 specific initialization afterr mm is initialized. */	76	/** Performs arm32 specific initialization afterr mm is initialized. */
77	void arch_post_mm_init(void)	77	void arch_post_mm_init(void)
78	{	78	{
79	machine_hw_map_init();	79	machine_hw_map_init();
80		80
81	/* Initialize exception dispatch table */	81	/* Initialize exception dispatch table */
82	exception_init();	82	exception_init();
83		83
84	interrupt_init();	84	interrupt_init();
85		85
86	console_init(device_assign_devno());	86	console_init(device_assign_devno());
87		87
88	#ifdef CONFIG_FB	88	#ifdef CONFIG_FB
-		89	fb_properties_t prop = {
89	fb_init(machine_get_fb_address(), 640, 480, 1920, VISUAL_RGB_8_8_8);	90	.addr = machine_get_fb_address(),
-		91	.offset = 0,
-		92	.x = 640,
-		93	.y = 480,
-		94	.scan = 1920,
-		95	.visual = VISUAL_RGB_8_8_8,
-		96	};
-		97	fb_init(&prop);
90	#endif	98	#endif
91	}	99	}
92		100
93	/** Performs arm32 specific tasks needed after cpu is initialized.	101	/** Performs arm32 specific tasks needed after cpu is initialized.
94	*	102	*
95	* Currently the function is empty.	103	* Currently the function is empty.
96	*/	104	*/
97	void arch_post_cpu_init(void)	105	void arch_post_cpu_init(void)
98	{	106	{
99	}	107	}
100		108
101		109
102	/** Performs arm32 specific tasks needed before the multiprocessing is	110	/** Performs arm32 specific tasks needed before the multiprocessing is
103	* initialized.	111	* initialized.
104	*	112	*
105	* Currently the function is empty because SMP is not supported.	113	* Currently the function is empty because SMP is not supported.
106	*/	114	*/
107	void arch_pre_smp_init(void)	115	void arch_pre_smp_init(void)
108	{	116	{
109	}	117	}
110		118
111		119
112	/** Performs arm32 specific tasks needed after the multiprocessing is	120	/** Performs arm32 specific tasks needed after the multiprocessing is
113	* initialized.	121	* initialized.
114	*	122	*
115	* Currently the function is empty because SMP is not supported.	123	* Currently the function is empty because SMP is not supported.
116	*/	124	*/
117	void arch_post_smp_init(void)	125	void arch_post_smp_init(void)
118	{	126	{
119	}	127	}
120		128
121		129
122	/** Performs arm32 specific tasks needed before the new task is run. */	130	/** Performs arm32 specific tasks needed before the new task is run. */
123	void before_task_runs_arch(void)	131	void before_task_runs_arch(void)
124	{	132	{
125	tlb_invalidate_all();	133	tlb_invalidate_all();
126	}	134	}
127		135
128		136
129	/** Performs arm32 specific tasks needed before the new thread is scheduled.	137	/** Performs arm32 specific tasks needed before the new thread is scheduled.
130	*	138	*
131	* It sets supervisor_sp.	139	* It sets supervisor_sp.
132	*/	140	*/
133	void before_thread_runs_arch(void)	141	void before_thread_runs_arch(void)
134	{	142	{
135	uint8_t *stck;	143	uint8_t *stck;
136		144
137	stck = &THREAD->kstack[THREAD_STACK_SIZE - SP_DELTA];	145	stck = &THREAD->kstack[THREAD_STACK_SIZE - SP_DELTA];
138	supervisor_sp = (uintptr_t) stck;	146	supervisor_sp = (uintptr_t) stck;
139	}	147	}
140		148
141	/** Performs arm32 specific tasks before a thread stops running.	149	/** Performs arm32 specific tasks before a thread stops running.
142	*	150	*
143	* Currently the function is empty.	151	* Currently the function is empty.
144	*/	152	*/
145	void after_thread_ran_arch(void)	153	void after_thread_ran_arch(void)
146	{	154	{
147	}	155	}
148		156
149	/** Halts CPU. */	157	/** Halts CPU. */
150	void cpu_halt(void)	158	void cpu_halt(void)
151	{	159	{
152	machine_cpu_halt();	160	machine_cpu_halt();
153	}	161	}
154		162
155	/** Reboot. */	163	/** Reboot. */
156	void arch_reboot()	164	void arch_reboot()
157	{	165	{
158	/* not implemented */	166	/* not implemented */
159	for (;;)	167	for (;;)
160	;	168	;
161	}	169	}
162		170
163	/** @}	171	/** @}
164	*/	172	*/
165		173

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(root)/branches/dynload/kernel/arch/arm32/src/arm32.c – Rev 2927 → 3674