diff options
Diffstat (limited to 'arch/parisc/kernel/init_task.c')
-rw-r--r-- | arch/parisc/kernel/init_task.c | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/arch/parisc/kernel/init_task.c b/arch/parisc/kernel/init_task.c new file mode 100644 index 000000000000..7e898fd64415 --- /dev/null +++ b/arch/parisc/kernel/init_task.c | |||
@@ -0,0 +1,76 @@ | |||
1 | /* | ||
2 | * Static declaration of "init" task data structure. | ||
3 | * | ||
4 | * Copyright (C) 2000 Paul Bame <bame at parisc-linux.org> | ||
5 | * Copyright (C) 2000-2001 John Marvin <jsm at parisc-linux.org> | ||
6 | * Copyright (C) 2001 Helge Deller <deller @ parisc-linux.org> | ||
7 | * Copyright (C) 2002 Matthew Wilcox <willy with parisc-linux.org> | ||
8 | * | ||
9 | * | ||
10 | * This program is free software; you can redistribute it and/or modify | ||
11 | * it under the terms of the GNU General Public License as published by | ||
12 | * the Free Software Foundation; either version 2 of the License, or | ||
13 | * (at your option) any later version. | ||
14 | * | ||
15 | * This program is distributed in the hope that it will be useful, | ||
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
18 | * GNU General Public License for more details. | ||
19 | * | ||
20 | * You should have received a copy of the GNU General Public License | ||
21 | * along with this program; if not, write to the Free Software | ||
22 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
23 | */ | ||
24 | |||
25 | #include <linux/mm.h> | ||
26 | #include <linux/module.h> | ||
27 | #include <linux/sched.h> | ||
28 | #include <linux/init.h> | ||
29 | #include <linux/init_task.h> | ||
30 | #include <linux/mqueue.h> | ||
31 | |||
32 | #include <asm/uaccess.h> | ||
33 | #include <asm/pgtable.h> | ||
34 | #include <asm/pgalloc.h> | ||
35 | |||
36 | static struct fs_struct init_fs = INIT_FS; | ||
37 | static struct files_struct init_files = INIT_FILES; | ||
38 | static struct signal_struct init_signals = INIT_SIGNALS(init_signals); | ||
39 | static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); | ||
40 | struct mm_struct init_mm = INIT_MM(init_mm); | ||
41 | |||
42 | EXPORT_SYMBOL(init_mm); | ||
43 | |||
44 | /* | ||
45 | * Initial task structure. | ||
46 | * | ||
47 | * We need to make sure that this is 16384-byte aligned due to the | ||
48 | * way process stacks are handled. This is done by having a special | ||
49 | * "init_task" linker map entry.. | ||
50 | */ | ||
51 | unsigned char interrupt_stack[ISTACK_SIZE] __attribute__ ((section("init_istack"), aligned(4096))); | ||
52 | union thread_union init_thread_union | ||
53 | __attribute__((aligned(128))) __attribute__((__section__(".data.init_task"))) = | ||
54 | { INIT_THREAD_INFO(init_task) }; | ||
55 | |||
56 | #ifdef __LP64__ | ||
57 | /* NOTE: This layout exactly conforms to the hybrid L2/L3 page table layout | ||
58 | * with the first pmd adjacent to the pgd and below it. gcc doesn't actually | ||
59 | * guarantee that global objects will be laid out in memory in the same order | ||
60 | * as the order of declaration, so put these in different sections and use | ||
61 | * the linker script to order them. */ | ||
62 | pmd_t pmd0[PTRS_PER_PMD] __attribute__ ((aligned(PAGE_SIZE))) __attribute__ ((__section__ (".data.vm0.pmd"))) = { {0}, }; | ||
63 | |||
64 | #endif | ||
65 | pgd_t swapper_pg_dir[PTRS_PER_PGD] __attribute__ ((aligned(PAGE_SIZE))) __attribute__ ((__section__ (".data.vm0.pgd"))) = { {0}, }; | ||
66 | pte_t pg0[PT_INITIAL * PTRS_PER_PTE] __attribute__ ((aligned(PAGE_SIZE))) __attribute__ ((__section__ (".data.vm0.pte"))) = { {0}, }; | ||
67 | |||
68 | /* | ||
69 | * Initial task structure. | ||
70 | * | ||
71 | * All other task structs will be allocated on slabs in fork.c | ||
72 | */ | ||
73 | EXPORT_SYMBOL(init_task); | ||
74 | |||
75 | __asm__(".data"); | ||
76 | struct task_struct init_task = INIT_TASK(init_task); | ||