WebSVN – HelenOS-historic – Diff – /kernel/trunk/arch/ia32/src/ia32.c


/*
 * Copyright (C) 2001-2004 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.
 */
 
#include <arch.h>
 
#include <arch/types.h>
#include <typedefs.h>
 
#include <arch/pm.h>
 
#include <arch/ega.h>
#include <arch/i8042.h>
#include <arch/i8254.h>
#include <arch/i8259.h>
 
#include <arch/context.h>
 
#include <config.h>
 
#include <arch/interrupt.h>
 
#include <arch/asm.h>
 
void write_dr0(__u32 v)
{
    __asm__("movl %0,%%dr0" : : "r" (v));
}
 
inline __u32 read_dr0(void)
{
    __u32 v;
   
    __asm__("movl %%dr0,%0\n" : "=r" (v));
   
    return v;
}
 
void arch_pre_mm_init(void)
{
    pm_init();
 
    write_dr0(config.cpu_active - 1);
 
    if (config.cpu_active == 1) {
        i8042_init();   /* a20 bit */
            i8259_init();   /* PIC */
        i8254_init();   /* hard clock */
 
        trap_register(VECTOR_SYSCALL, syscall);
       
        #ifdef __SMP__
        trap_register(VECTOR_TLB_SHOOTDOWN_IPI, tlb_shootdown_ipi);
        trap_register(VECTOR_WAKEUP_IPI, wakeup_ipi);
        #endif /* __SMP__ */
    }
}
 
void arch_post_mm_init()
{
    if (config.cpu_active == 1) {
        ega_init(); /* video */
    }
}
 
void calibrate_delay_loop(void)
{
    i8254_calibrate_delay_loop();
    i8254_normal_operation();
}
 

Rev 27	Rev 28
1	/*	1	/*
2	* Copyright (C) 2001-2004 Jakub Jermar	2	* Copyright (C) 2001-2004 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	#include <arch.h>	29	#include <arch.h>
30		30
31	#include <arch/types.h>	31	#include <arch/types.h>
32	#include <typedefs.h>	32	#include <typedefs.h>
33		33
34	#include <arch/pm.h>	34	#include <arch/pm.h>
35		35
36	#include <arch/ega.h>	36	#include <arch/ega.h>
37	#include <arch/i8042.h>	37	#include <arch/i8042.h>
38	#include <arch/i8254.h>	38	#include <arch/i8254.h>
39	#include <arch/i8259.h>	39	#include <arch/i8259.h>
40		40
41	#include <arch/context.h>	41	#include <arch/context.h>
42		42
43	#include <config.h>	43	#include <config.h>
44		44
45	#include <arch/interrupt.h>	45	#include <arch/interrupt.h>
46		46
-		47	#include <arch/asm.h>
-		48
-		49	void write_dr0(__u32 v)
-		50	{
-		51	__asm__("movl %0,%%dr0" : : "r" (v));
-		52	}
-		53
-		54	inline __u32 read_dr0(void)
-		55	{
-		56	__u32 v;
-		57
-		58	__asm__("movl %%dr0,%0\n" : "=r" (v));
-		59
-		60	return v;
-		61	}
47		62
48	void arch_pre_mm_init(void)	63	void arch_pre_mm_init(void)
49	{	64	{
50	pm_init();	65	pm_init();
51		66
52	write_dr0(config.cpu_active - 1);	67	write_dr0(config.cpu_active - 1);
53		68
54	if (config.cpu_active == 1) {	69	if (config.cpu_active == 1) {
55	i8042_init(); /* a20 bit */	70	i8042_init(); /* a20 bit */
56	i8259_init(); /* PIC */	71	i8259_init(); /* PIC */
57	i8254_init(); /* hard clock */	72	i8254_init(); /* hard clock */
58		73
59	trap_register(VECTOR_SYSCALL, syscall);	74	trap_register(VECTOR_SYSCALL, syscall);
60		75
61	#ifdef __SMP__	76	#ifdef __SMP__
62	trap_register(VECTOR_TLB_SHOOTDOWN_IPI, tlb_shootdown_ipi);	77	trap_register(VECTOR_TLB_SHOOTDOWN_IPI, tlb_shootdown_ipi);
63	trap_register(VECTOR_WAKEUP_IPI, wakeup_ipi);	78	trap_register(VECTOR_WAKEUP_IPI, wakeup_ipi);
64	#endif /* __SMP__ */	79	#endif /* __SMP__ */
65	}	80	}
66	}	81	}
67		82
68	void arch_post_mm_init()	83	void arch_post_mm_init()
69	{	84	{
70	if (config.cpu_active == 1) {	85	if (config.cpu_active == 1) {
71	ega_init(); /* video */	86	ega_init(); /* video */
72	}	87	}
73	}	88	}
74		89
75	void calibrate_delay_loop(void)	90	void calibrate_delay_loop(void)
76	{	91	{
77	i8254_calibrate_delay_loop();	92	i8254_calibrate_delay_loop();
78	i8254_normal_operation();	93	i8254_normal_operation();
79	}	94	}
80		95

Subversion Repositories HelenOS-historic

(root)/kernel/trunk/arch/ia32/src/ia32.c @ 1780 – Rev 27 → 28