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