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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 | #ifndef __CPU_H__ |
29 | #ifndef __CPU_H__ |
30 | #define __CPU_H__ |
30 | #define __CPU_H__ |
31 | 31 | ||
32 | #include <arch/cpu.h> |
32 | #include <arch/cpu.h> |
33 | #include <proc/thread.h> |
33 | #include <proc/thread.h> |
34 | #include <proc/task.h> |
34 | #include <proc/task.h> |
35 | #include <proc/scheduler.h> |
35 | #include <proc/scheduler.h> |
36 | #include <time/clock.h> |
36 | #include <time/clock.h> |
37 | #include <synch/spinlock.h> |
37 | #include <synch/spinlock.h> |
38 | #include <synch/waitq.h> |
38 | #include <synch/waitq.h> |
39 | #include <arch/types.h> |
39 | #include <arch/types.h> |
40 | #include <typedefs.h> |
40 | #include <typedefs.h> |
41 | #include <arch/context.h> |
41 | #include <arch/context.h> |
42 | 42 | ||
43 | #define CPU_STACK_SIZE (4096) |
43 | #define CPU_STACK_SIZE (4096) |
44 | 44 | ||
45 | struct cpu { |
45 | struct cpu { |
46 | spinlock_t lock; |
46 | spinlock_t lock; |
47 | context_t saved_context; |
47 | context_t saved_context; |
48 | 48 | ||
49 | volatile int nrdy; |
49 | volatile int nrdy; |
50 | runq_t rq[RQ_COUNT]; |
50 | runq_t rq[RQ_COUNT]; |
51 | volatile int needs_relink; |
51 | volatile int needs_relink; |
52 | 52 | ||
53 | spinlock_t timeoutlock; |
53 | spinlock_t timeoutlock; |
54 | link_t timeout_active_head; |
54 | link_t timeout_active_head; |
55 | 55 | ||
56 | #ifdef __SMP__ |
56 | #ifdef __SMP__ |
57 | int kcpulbstarted; |
57 | int kcpulbstarted; |
58 | waitq_t kcpulb_wq; |
58 | waitq_t kcpulb_wq; |
59 | #endif /* __SMP__ */ |
59 | #endif /* __SMP__ */ |
60 | 60 | ||
61 | int id; |
61 | int id; |
- | 62 | int active; |
|
62 | 63 | ||
63 | __u16 frequency_mhz; |
64 | __u16 frequency_mhz; |
64 | __u32 delay_loop_const; |
65 | __u32 delay_loop_const; |
65 | 66 | ||
66 | cpu_arch_t arch; |
67 | cpu_arch_t arch; |
67 | 68 | ||
68 | __u8 *stack; |
69 | __u8 *stack; |
69 | }; |
70 | }; |
70 | 71 | ||
71 | /* |
72 | /* |
72 | * read/write by associated CPU |
73 | * read/write by associated CPU |
73 | * read only by other CPUs |
74 | * read only by other CPUs |
74 | */ |
75 | */ |
75 | struct cpu_private_data { |
76 | struct cpu_private_data { |
76 | thread_t *thread; |
77 | thread_t *thread; |
77 | task_t *task; |
78 | task_t *task; |
78 | }; |
79 | }; |
79 | 80 | ||
80 | extern cpu_private_data_t *cpu_private_data; |
81 | extern cpu_private_data_t *cpu_private_data; |
81 | extern cpu_t *cpus; |
82 | extern cpu_t *cpus; |
82 | 83 | ||
83 | extern void cpu_init(void); |
84 | extern void cpu_init(void); |
84 | extern void cpu_arch_init(void); |
85 | extern void cpu_arch_init(void); |
85 | extern void cpu_identify(void); |
86 | extern void cpu_identify(void); |
86 | extern void cpu_print_report(cpu_t *m); |
87 | extern void cpu_print_report(cpu_t *m); |
87 | 88 | ||
88 | #endif |
89 | #endif |
89 | 90 |