WebSVN – HelenOS – Diff – /trunk/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 <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>
#include <macros.h>
 
/** Performs arm32-specific initialization before main_bsp() is called. */
void arch_pre_main(void *entry __attribute__((unused)), bootinfo_t *bootinfo)
{
    unsigned int i;
   
    init.cnt = bootinfo->cnt;
   
    for (i = 0; i < min3(bootinfo->cnt, TASKMAP_MAX_RECORDS, CONFIG_INIT_TASKS); ++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_BGR_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 */
    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)
{
    return addr;
}
 
/** @}
 */
 

Rev 3922	Rev 4023
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 <config.h>	37	#include <config.h>
38	#include <arch/console.h>	38	#include <arch/console.h>
39	#include <ddi/device.h>	39	#include <ddi/device.h>
40	#include <genarch/fb/fb.h>	40	#include <genarch/fb/fb.h>
41	#include <genarch/fb/visuals.h>	41	#include <genarch/fb/visuals.h>
42	#include <ddi/irq.h>	42	#include <ddi/irq.h>
43	#include <arch/debug/print.h>	43	#include <arch/debug/print.h>
44	#include <print.h>	44	#include <print.h>
45	#include <config.h>	45	#include <config.h>
46	#include <interrupt.h>	46	#include <interrupt.h>
47	#include <arch/regutils.h>	47	#include <arch/regutils.h>
48	#include <arch/machine.h>	48	#include <arch/machine.h>
49	#include <userspace.h>	49	#include <userspace.h>
50	#include <macros.h>	50	#include <macros.h>
51		51
52	/** Performs arm32 specific initialization before main_bsp() is called. */	52	/** Performs arm32-specific initialization before main_bsp() is called. */
53	void arch_pre_main(void entry __attribute__((unused)), bootinfo_t bootinfo)	53	void arch_pre_main(void entry __attribute__((unused)), bootinfo_t bootinfo)
54	{	54	{
55	unsigned int i;	55	unsigned int i;
56		56
57	init.cnt = bootinfo->cnt;	57	init.cnt = bootinfo->cnt;
58		58
59	for (i = 0; i < min3(bootinfo->cnt, TASKMAP_MAX_RECORDS, CONFIG_INIT_TASKS); ++i) {	59	for (i = 0; i < min3(bootinfo->cnt, TASKMAP_MAX_RECORDS, CONFIG_INIT_TASKS); ++i) {
60	init.tasks[i].addr = bootinfo->tasks[i].addr;	60	init.tasks[i].addr = bootinfo->tasks[i].addr;
61	init.tasks[i].size = bootinfo->tasks[i].size;	61	init.tasks[i].size = bootinfo->tasks[i].size;
62	}	62	}
63	}	63	}
64		64
65	/** Performs arm32 specific initialization before mm is initialized. */	65	/** Performs arm32 specific initialization before mm is initialized. */
66	void arch_pre_mm_init(void)	66	void arch_pre_mm_init(void)
67	{	67	{
68	/* It is not assumed by default */	68	/* It is not assumed by default */
69	interrupts_disable();	69	interrupts_disable();
70	}	70	}
71		71
72	/** Performs arm32 specific initialization afterr mm is initialized. */	72	/** Performs arm32 specific initialization afterr mm is initialized. */
73	void arch_post_mm_init(void)	73	void arch_post_mm_init(void)
74	{	74	{
75	machine_hw_map_init();	75	machine_hw_map_init();
76		76
77	/* Initialize exception dispatch table */	77	/* Initialize exception dispatch table */
78	exception_init();	78	exception_init();
79		79
80	interrupt_init();	80	interrupt_init();
81		81
82	console_init(device_assign_devno());	82	console_init(device_assign_devno());
83		83
84	#ifdef CONFIG_FB	84	#ifdef CONFIG_FB
85	fb_properties_t prop = {	85	fb_properties_t prop = {
86	.addr = machine_get_fb_address(),	86	.addr = machine_get_fb_address(),
87	.offset = 0,	87	.offset = 0,
88	.x = 640,	88	.x = 640,
89	.y = 480,	89	.y = 480,
90	.scan = 1920,	90	.scan = 1920,
91	.visual = VISUAL_BGR_8_8_8,	91	.visual = VISUAL_BGR_8_8_8,
92	};	92	};
93	fb_init(&prop);	93	fb_init(&prop);
94	#endif	94	#endif
95	}	95	}
96		96
97	/** Performs arm32 specific tasks needed after cpu is initialized.	97	/** Performs arm32 specific tasks needed after cpu is initialized.
98	*	98	*
99	* Currently the function is empty.	99	* Currently the function is empty.
100	*/	100	*/
101	void arch_post_cpu_init(void)	101	void arch_post_cpu_init(void)
102	{	102	{
103	}	103	}
104		104
105		105
106	/** Performs arm32 specific tasks needed before the multiprocessing is	106	/** Performs arm32 specific tasks needed before the multiprocessing is
107	* initialized.	107	* initialized.
108	*	108	*
109	* Currently the function is empty because SMP is not supported.	109	* Currently the function is empty because SMP is not supported.
110	*/	110	*/
111	void arch_pre_smp_init(void)	111	void arch_pre_smp_init(void)
112	{	112	{
113	}	113	}
114		114
115		115
116	/** Performs arm32 specific tasks needed after the multiprocessing is	116	/** Performs arm32 specific tasks needed after the multiprocessing is
117	* initialized.	117	* initialized.
118	*	118	*
119	* Currently the function is empty because SMP is not supported.	119	* Currently the function is empty because SMP is not supported.
120	*/	120	*/
121	void arch_post_smp_init(void)	121	void arch_post_smp_init(void)
122	{	122	{
123	}	123	}
124		124
125		125
126	/** Performs arm32 specific tasks needed before the new task is run. */	126	/** Performs arm32 specific tasks needed before the new task is run. */
127	void before_task_runs_arch(void)	127	void before_task_runs_arch(void)
128	{	128	{
129	tlb_invalidate_all();	129	tlb_invalidate_all();
130	}	130	}
131		131
132		132
133	/** Performs arm32 specific tasks needed before the new thread is scheduled.	133	/** Performs arm32 specific tasks needed before the new thread is scheduled.
134	*	134	*
135	* It sets supervisor_sp.	135	* It sets supervisor_sp.
136	*/	136	*/
137	void before_thread_runs_arch(void)	137	void before_thread_runs_arch(void)
138	{	138	{
139	uint8_t *stck;	139	uint8_t *stck;
140		140
141	stck = &THREAD->kstack[THREAD_STACK_SIZE - SP_DELTA];	141	stck = &THREAD->kstack[THREAD_STACK_SIZE - SP_DELTA];
142	supervisor_sp = (uintptr_t) stck;	142	supervisor_sp = (uintptr_t) stck;
143	}	143	}
144		144
145	/** Performs arm32 specific tasks before a thread stops running.	145	/** Performs arm32 specific tasks before a thread stops running.
146	*	146	*
147	* Currently the function is empty.	147	* Currently the function is empty.
148	*/	148	*/
149	void after_thread_ran_arch(void)	149	void after_thread_ran_arch(void)
150	{	150	{
151	}	151	}
152		152
153	/** Halts CPU. */	153	/** Halts CPU. */
154	void cpu_halt(void)	154	void cpu_halt(void)
155	{	155	{
156	machine_cpu_halt();	156	machine_cpu_halt();
157	}	157	}
158		158
159	/** Reboot. */	159	/** Reboot. */
160	void arch_reboot()	160	void arch_reboot()
161	{	161	{
162	/* not implemented */	162	/* not implemented */
163	while (1);	163	while (1);
164	}	164	}
165		165
166	/** Construct function pointer	166	/** Construct function pointer
167	*	167	*
168	* @param fptr function pointer structure	168	* @param fptr function pointer structure
169	* @param addr function address	169	* @param addr function address
170	* @param caller calling function address	170	* @param caller calling function address
171	*	171	*
172	* @return address of the function pointer	172	* @return address of the function pointer
173	*	173	*
174	*/	174	*/
175	void arch_construct_function(fncptr_t fptr, void addr, void caller)	175	void arch_construct_function(fncptr_t fptr, void addr, void caller)
176	{	176	{
177	return addr;	177	return addr;
178	}	178	}
179		179
180	/** @}	180	/** @}
181	*/	181	*/
182		182

Subversion Repositories HelenOS

(root)/trunk/kernel/arch/arm32/src/arm32.c @ 4675 – Rev 3922 → 4023