WebSVN – HelenOS-historic – Diff – /kernel/trunk/generic/src/cpu/cpu.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 <cpu.h>
#include <arch.h>
#include <arch/cpu.h>
#include <mm/heap.h>
#include <mm/page.h>
#include <mm/frame.h>
#include <arch/types.h>
#include <config.h>
#include <panic.h>
#include <typedefs.h>
#include <memstr.h>
#include <list.h>
 
 
 
cpu_t *cpus;
 
 
/** Initialize CPUs
 *
 * Initialize kernel CPUs support.
 *
 */
void cpu_init(void) {
    int i, j;
   
    #ifdef __SMP__
    if (config.cpu_active == 1) {
    #endif /* __SMP__ */
 
 
 
 
        cpus = (cpu_t *) malloc(sizeof(cpu_t) * config.cpu_count);
        if (!cpus)
            panic("malloc/cpus");
 
        /* initialize everything */
 
        memsetb((__address) cpus, sizeof(cpu_t) * config.cpu_count, 0);
 
        for (i=0; i < config.cpu_count; i++) {
            cpus[i].stack = (__u8 *) frame_alloc(FRAME_KA | FRAME_PANIC);
            if (!cpus[i].stack)
                panic("malloc/cpus[%d].stack\n", i);
           
            cpus[i].id = i;
           
            #ifdef __SMP__
            waitq_initialize(&cpus[i].kcpulb_wq);
            #endif /* __SMP */
           
            for (j = 0; j < RQ_COUNT; j++) {
                list_initialize(&cpus[i].rq[j].rq_head);
            }
        }
       
    #ifdef __SMP__
    }
    #endif /* __SMP__ */
 
    CPU = &cpus[config.cpu_active-1];
   
    CPU->active = 1;
    CPU->tlb_active = 1;
   
    cpu_identify();
    cpu_arch_init();
}
 

Rev 125	Rev 192
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 <cpu.h>	29	#include <cpu.h>
30	#include <arch.h>	30	#include <arch.h>
31	#include <arch/cpu.h>	31	#include <arch/cpu.h>
32	#include <mm/heap.h>	32	#include <mm/heap.h>
33	#include <mm/page.h>	33	#include <mm/page.h>
34	#include <mm/frame.h>	34	#include <mm/frame.h>
35	#include <arch/types.h>	35	#include <arch/types.h>
36	#include <config.h>	36	#include <config.h>
37	#include <panic.h>	37	#include <panic.h>
38	#include <typedefs.h>	38	#include <typedefs.h>
39	#include <memstr.h>	39	#include <memstr.h>
40	#include <list.h>	40	#include <list.h>
41		41
42		-
43	cpu_private_data_t *cpu_private_data;	-
44	cpu_t *cpus;	42	cpu_t *cpus;
45		43
46		-
47	/** Initialize CPUs	44	/** Initialize CPUs
48	*	45	*
49	* Initialize kernel CPUs support.	46	* Initialize kernel CPUs support.
50	*	47	*
51	*/	48	*/
52	void cpu_init(void) {	49	void cpu_init(void) {
53	int i, j;	50	int i, j;
54		51
55	#ifdef __SMP__	52	#ifdef __SMP__
56	if (config.cpu_active == 1) {	53	if (config.cpu_active == 1) {
57	#endif /* __SMP__ */	54	#endif /* __SMP__ */
58	cpu_private_data = (cpu_private_data_t ) malloc(sizeof(cpu_private_data_t) config.cpu_count);	-
59	if (!cpu_private_data)	-
60	panic("malloc/cpu_private_data");	-
61		-
62	cpus = (cpu_t ) malloc(sizeof(cpu_t) config.cpu_count);	55	cpus = (cpu_t ) malloc(sizeof(cpu_t) config.cpu_count);
63	if (!cpus)	56	if (!cpus)
64	panic("malloc/cpus");	57	panic("malloc/cpus");
65		58
66	/* initialize everything */	59	/* initialize everything */
67	memsetb((__address) cpu_private_data, sizeof(cpu_private_data_t) * config.cpu_count, 0);	-
68	memsetb((__address) cpus, sizeof(cpu_t) * config.cpu_count, 0);	60	memsetb((__address) cpus, sizeof(cpu_t) * config.cpu_count, 0);
69		61
70	for (i=0; i < config.cpu_count; i++) {	62	for (i=0; i < config.cpu_count; i++) {
71	cpus[i].stack = (__u8 *) malloc(CPU_STACK_SIZE);	63	cpus[i].stack = (__u8 *) frame_alloc(FRAME_KA \| FRAME_PANIC);
72	if (!cpus[i].stack)	64	if (!cpus[i].stack)
73	panic("malloc/cpus[%d].stack\n", i);	65	panic("malloc/cpus[%d].stack\n", i);
74		66
75	cpus[i].id = i;	67	cpus[i].id = i;
76		68
77	#ifdef __SMP__	69	#ifdef __SMP__
78	waitq_initialize(&cpus[i].kcpulb_wq);	70	waitq_initialize(&cpus[i].kcpulb_wq);
79	#endif /* __SMP */	71	#endif /* __SMP */
80		72
81	for (j = 0; j < RQ_COUNT; j++) {	73	for (j = 0; j < RQ_COUNT; j++) {
82	list_initialize(&cpus[i].rq[j].rq_head);	74	list_initialize(&cpus[i].rq[j].rq_head);
83	}	75	}
84	}	76	}
85		77
86	#ifdef __SMP__	78	#ifdef __SMP__
87	}	79	}
88	#endif /* __SMP__ */	80	#endif /* __SMP__ */
-		81
-		82	CPU = &cpus[config.cpu_active-1];
89		83
90	CPU->active = 1;	84	CPU->active = 1;
91	CPU->tlb_active = 1;	85	CPU->tlb_active = 1;
92		86
93	cpu_identify();	87	cpu_identify();
94	cpu_arch_init();	88	cpu_arch_init();
95	}	89	}
96		90

Subversion Repositories HelenOS-historic

(root)/kernel/trunk/generic/src/cpu/cpu.c @ 1760 – Rev 125 → 192