Rev 1702 | Rev 1760 | Go to most recent revision | Only display areas with differences | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed
Rev 1702 | Rev 1705 | ||
---|---|---|---|
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 | /** @defgroup cpu CPU |
- | |
30 | * @ingroup kernel |
- | |
31 | * @{ |
- | |
32 | * @} |
- | |
33 | */ |
- | |
34 | - | ||
35 | /** @addtogroup genericcpu generic |
29 | /** @addtogroup genericcpu |
36 | * @ingroup cpu |
- | |
37 | * @{ |
30 | * @{ |
38 | */ |
31 | */ |
39 | 32 | ||
40 | /** |
33 | /** |
41 | * @file |
34 | * @file |
42 | * @brief CPU subsystem initialization and listing. |
35 | * @brief CPU subsystem initialization and listing. |
43 | */ |
36 | */ |
44 | 37 | ||
45 | #include <cpu.h> |
38 | #include <cpu.h> |
46 | #include <arch.h> |
39 | #include <arch.h> |
47 | #include <arch/cpu.h> |
40 | #include <arch/cpu.h> |
48 | #include <mm/slab.h> |
41 | #include <mm/slab.h> |
49 | #include <mm/page.h> |
42 | #include <mm/page.h> |
50 | #include <mm/frame.h> |
43 | #include <mm/frame.h> |
51 | #include <arch/types.h> |
44 | #include <arch/types.h> |
52 | #include <config.h> |
45 | #include <config.h> |
53 | #include <panic.h> |
46 | #include <panic.h> |
54 | #include <typedefs.h> |
47 | #include <typedefs.h> |
55 | #include <memstr.h> |
48 | #include <memstr.h> |
56 | #include <adt/list.h> |
49 | #include <adt/list.h> |
57 | #include <print.h> |
50 | #include <print.h> |
58 | 51 | ||
59 | cpu_t *cpus; |
52 | cpu_t *cpus; |
60 | 53 | ||
61 | /** Initialize CPUs |
54 | /** Initialize CPUs |
62 | * |
55 | * |
63 | * Initialize kernel CPUs support. |
56 | * Initialize kernel CPUs support. |
64 | * |
57 | * |
65 | */ |
58 | */ |
66 | void cpu_init(void) { |
59 | void cpu_init(void) { |
67 | int i, j; |
60 | int i, j; |
68 | 61 | ||
69 | #ifdef CONFIG_SMP |
62 | #ifdef CONFIG_SMP |
70 | if (config.cpu_active == 1) { |
63 | if (config.cpu_active == 1) { |
71 | #endif /* CONFIG_SMP */ |
64 | #endif /* CONFIG_SMP */ |
72 | cpus = (cpu_t *) malloc(sizeof(cpu_t) * config.cpu_count, |
65 | cpus = (cpu_t *) malloc(sizeof(cpu_t) * config.cpu_count, |
73 | FRAME_ATOMIC); |
66 | FRAME_ATOMIC); |
74 | if (!cpus) |
67 | if (!cpus) |
75 | panic("malloc/cpus"); |
68 | panic("malloc/cpus"); |
76 | 69 | ||
77 | /* initialize everything */ |
70 | /* initialize everything */ |
78 | memsetb((__address) cpus, sizeof(cpu_t) * config.cpu_count, 0); |
71 | memsetb((__address) cpus, sizeof(cpu_t) * config.cpu_count, 0); |
79 | 72 | ||
80 | for (i=0; i < config.cpu_count; i++) { |
73 | for (i=0; i < config.cpu_count; i++) { |
81 | cpus[i].stack = (__u8 *) PA2KA(PFN2ADDR(frame_alloc(STACK_FRAMES, FRAME_KA | FRAME_PANIC))); |
74 | cpus[i].stack = (__u8 *) PA2KA(PFN2ADDR(frame_alloc(STACK_FRAMES, FRAME_KA | FRAME_PANIC))); |
82 | 75 | ||
83 | cpus[i].id = i; |
76 | cpus[i].id = i; |
84 | 77 | ||
85 | spinlock_initialize(&cpus[i].lock, "cpu_t.lock"); |
78 | spinlock_initialize(&cpus[i].lock, "cpu_t.lock"); |
86 | 79 | ||
87 | for (j = 0; j < RQ_COUNT; j++) { |
80 | for (j = 0; j < RQ_COUNT; j++) { |
88 | spinlock_initialize(&cpus[i].rq[j].lock, "rq_t.lock"); |
81 | spinlock_initialize(&cpus[i].rq[j].lock, "rq_t.lock"); |
89 | list_initialize(&cpus[i].rq[j].rq_head); |
82 | list_initialize(&cpus[i].rq[j].rq_head); |
90 | } |
83 | } |
91 | } |
84 | } |
92 | 85 | ||
93 | #ifdef CONFIG_SMP |
86 | #ifdef CONFIG_SMP |
94 | } |
87 | } |
95 | #endif /* CONFIG_SMP */ |
88 | #endif /* CONFIG_SMP */ |
96 | 89 | ||
97 | CPU = &cpus[config.cpu_active-1]; |
90 | CPU = &cpus[config.cpu_active-1]; |
98 | 91 | ||
99 | CPU->active = 1; |
92 | CPU->active = 1; |
100 | CPU->tlb_active = 1; |
93 | CPU->tlb_active = 1; |
101 | 94 | ||
102 | cpu_identify(); |
95 | cpu_identify(); |
103 | cpu_arch_init(); |
96 | cpu_arch_init(); |
104 | } |
97 | } |
105 | 98 | ||
106 | /** List all processors. */ |
99 | /** List all processors. */ |
107 | void cpu_list(void) |
100 | void cpu_list(void) |
108 | { |
101 | { |
109 | int i; |
102 | int i; |
110 | 103 | ||
111 | for (i = 0; i < config.cpu_count; i++) { |
104 | for (i = 0; i < config.cpu_count; i++) { |
112 | if (cpus[i].active) |
105 | if (cpus[i].active) |
113 | cpu_print_report(&cpus[i]); |
106 | cpu_print_report(&cpus[i]); |
114 | else |
107 | else |
115 | printf("cpu%d: not active\n", i); |
108 | printf("cpu%d: not active\n", i); |
116 | } |
109 | } |
117 | } |
110 | } |
118 | 111 | ||
119 | /** @} |
112 | /** @} |
120 | */ |
113 | */ |
121 | 114 | ||
122 | 115 |