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| 1 | /* |
1 | /* |
| 2 | * Copyright (c) 2007 Jan Hudecek |
2 | * Copyright (c) 2007 Jan Hudecek |
| 3 | * Copyright (c) 2008 Martin Decky |
3 | * Copyright (c) 2008 Martin Decky |
| 4 | * All rights reserved. |
4 | * All rights reserved. |
| 5 | * |
5 | * |
| 6 | * Redistribution and use in source and binary forms, with or without |
6 | * Redistribution and use in source and binary forms, with or without |
| 7 | * modification, are permitted provided that the following conditions |
7 | * modification, are permitted provided that the following conditions |
| 8 | * are met: |
8 | * are met: |
| 9 | * |
9 | * |
| 10 | * - Redistributions of source code must retain the above copyright |
10 | * - Redistributions of source code must retain the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer. |
11 | * notice, this list of conditions and the following disclaimer. |
| 12 | * - Redistributions in binary form must reproduce the above copyright |
12 | * - Redistributions in binary form must reproduce the above copyright |
| 13 | * notice, this list of conditions and the following disclaimer in the |
13 | * notice, this list of conditions and the following disclaimer in the |
| 14 | * documentation and/or other materials provided with the distribution. |
14 | * documentation and/or other materials provided with the distribution. |
| 15 | * - The name of the author may not be used to endorse or promote products |
15 | * - The name of the author may not be used to endorse or promote products |
| 16 | * derived from this software without specific prior written permission. |
16 | * derived from this software without specific prior written permission. |
| 17 | * |
17 | * |
| 18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 28 | */ |
28 | */ |
| 29 | 29 | ||
| 30 | /** @addtogroup genericproc |
30 | /** @addtogroup genericproc |
| 31 | * @{ |
31 | * @{ |
| 32 | */ |
32 | */ |
| 33 | /** @file tasklet.c |
33 | /** @file tasklet.c |
| 34 | * @brief Tasklet implementation |
34 | * @brief Tasklet implementation |
| 35 | */ |
35 | */ |
| 36 | 36 | ||
| 37 | #include <proc/tasklet.h> |
37 | #include <proc/tasklet.h> |
| 38 | #include <synch/spinlock.h> |
38 | #include <synch/spinlock.h> |
| 39 | #include <mm/slab.h> |
39 | #include <mm/slab.h> |
| 40 | #include <config.h> |
40 | #include <config.h> |
| 41 | 41 | ||
| 42 | /** Spinlock protecting list of tasklets */ |
42 | /** Spinlock protecting list of tasklets */ |
| 43 | SPINLOCK_INITIALIZE(tasklet_lock); |
43 | SPINLOCK_INITIALIZE(tasklet_lock); |
| 44 | 44 | ||
| 45 | /** Array of tasklet lists for every CPU */ |
45 | /** Array of tasklet lists for every CPU */ |
| 46 | tasklet_descriptor_t **tasklet_list; |
46 | tasklet_descriptor_t **tasklet_list; |
| 47 | 47 | ||
| 48 | void tasklet_init(void) |
48 | void tasklet_init(void) |
| 49 | { |
49 | { |
| 50 | unsigned int i; |
50 | unsigned int i; |
| 51 | 51 | ||
| 52 | tasklet_list = malloc(sizeof(tasklet_descriptor_t *) * config.cpu_count, 0); |
52 | tasklet_list = malloc(sizeof(tasklet_descriptor_t *) * config.cpu_count, 0); |
| 53 | if (!tasklet_list) |
53 | if (!tasklet_list) |
| 54 | panic("Error initializing tasklets"); |
54 | panic("Error initializing tasklets."); |
| 55 | 55 | ||
| 56 | for (i = 0; i < config.cpu_count; i++) |
56 | for (i = 0; i < config.cpu_count; i++) |
| 57 | tasklet_list[i] = NULL; |
57 | tasklet_list[i] = NULL; |
| 58 | 58 | ||
| 59 | spinlock_initialize(&tasklet_lock, "tasklet_lock"); |
59 | spinlock_initialize(&tasklet_lock, "tasklet_lock"); |
| 60 | } |
60 | } |
| 61 | 61 | ||
| 62 | 62 | ||
| 63 | /** @} |
63 | /** @} |
| 64 | */ |
64 | */ |
| 65 | 65 | ||