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| 1 | /* |
1 | /* |
| 2 | * Copyright (C) 2006 Martin Decky |
2 | * Copyright (C) 2006 Martin Decky |
| 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 | /** @addtogroup ppc64interrupt |
29 | /** @addtogroup ppc64interrupt |
| 30 | * @{ |
30 | * @{ |
| 31 | */ |
31 | */ |
| 32 | /** @file |
32 | /** @file |
| 33 | */ |
33 | */ |
| 34 | 34 | ||
| 35 | #include <interrupt.h> |
35 | #include <interrupt.h> |
| 36 | #include <arch/interrupt.h> |
36 | #include <arch/interrupt.h> |
| 37 | #include <arch/types.h> |
37 | #include <arch/types.h> |
| 38 | #include <arch.h> |
38 | #include <arch.h> |
| 39 | #include <time/clock.h> |
39 | #include <time/clock.h> |
| 40 | #include <ipc/sysipc.h> |
40 | #include <ipc/sysipc.h> |
| 41 | 41 | ||
| 42 | 42 | ||
| 43 | void start_decrementer(void) |
43 | void start_decrementer(void) |
| 44 | { |
44 | { |
| 45 | asm volatile ( |
45 | asm volatile ( |
| 46 | "mtdec %0\n" |
46 | "mtdec %0\n" |
| 47 | : |
47 | : |
| 48 | : "r" (1000) |
48 | : "r" (1000) |
| 49 | ); |
49 | ); |
| 50 | } |
50 | } |
| 51 | 51 | ||
| 52 | 52 | ||
| 53 | static void exception_decrementer(int n, istate_t *istate) |
53 | static void exception_decrementer(int n, istate_t *istate) |
| 54 | { |
54 | { |
| 55 | clock(); |
55 | clock(); |
| 56 | start_decrementer(); |
56 | start_decrementer(); |
| 57 | } |
57 | } |
| 58 | 58 | ||
| 59 | 59 | ||
| 60 | /* Initialize basic tables for exception dispatching */ |
60 | /* Initialize basic tables for exception dispatching */ |
| 61 | void interrupt_init(void) |
61 | void interrupt_init(void) |
| 62 | { |
62 | { |
| 63 | exc_register(VECTOR_DECREMENTER, "timer", exception_decrementer); |
63 | exc_register(VECTOR_DECREMENTER, "timer", exception_decrementer); |
| 64 | } |
64 | } |
| 65 | 65 | ||
| 66 | 66 | ||
| 67 | /* Reregister irq to be IPC-ready */ |
67 | /* Reregister irq to be IPC-ready */ |
| 68 | void irq_ipc_bind_arch(__native irq) |
68 | void irq_ipc_bind_arch(unative_t irq) |
| 69 | { |
69 | { |
| 70 | panic("not implemented\n"); |
70 | panic("not implemented\n"); |
| 71 | /* TODO */ |
71 | /* TODO */ |
| 72 | } |
72 | } |
| 73 | 73 | ||
| 74 | /** @} |
74 | /** @} |
| 75 | */ |
75 | */ |
| 76 | 76 | ||
| 77 | 77 | ||