diff options
Diffstat (limited to 'arch/parisc/kernel')
| -rw-r--r-- | arch/parisc/kernel/init_task.c | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/arch/parisc/kernel/init_task.c b/arch/parisc/kernel/init_task.c new file mode 100644 index 00000000000..4a91e433416 --- /dev/null +++ b/arch/parisc/kernel/init_task.c | |||
| @@ -0,0 +1,70 @@ | |||
| 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/fs.h> | ||
| 27 | #include <linux/module.h> | ||
| 28 | #include <linux/sched.h> | ||
| 29 | #include <linux/init.h> | ||
| 30 | #include <linux/init_task.h> | ||
| 31 | #include <linux/mqueue.h> | ||
| 32 | |||
| 33 | #include <asm/uaccess.h> | ||
| 34 | #include <asm/pgtable.h> | ||
| 35 | #include <asm/pgalloc.h> | ||
| 36 | |||
| 37 | static struct signal_struct init_signals = INIT_SIGNALS(init_signals); | ||
| 38 | static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); | ||
| 39 | /* | ||
| 40 | * Initial task structure. | ||
| 41 | * | ||
| 42 | * We need to make sure that this is 16384-byte aligned due to the | ||
| 43 | * way process stacks are handled. This is done by having a special | ||
| 44 | * "init_task" linker map entry.. | ||
| 45 | */ | ||
| 46 | union thread_union init_thread_union __init_task_data | ||
| 47 | __attribute__((aligned(128))) = | ||
| 48 | { INIT_THREAD_INFO(init_task) }; | ||
| 49 | |||
| 50 | #if PT_NLEVELS == 3 | ||
| 51 | /* NOTE: This layout exactly conforms to the hybrid L2/L3 page table layout | ||
| 52 | * with the first pmd adjacent to the pgd and below it. gcc doesn't actually | ||
| 53 | * guarantee that global objects will be laid out in memory in the same order | ||
| 54 | * as the order of declaration, so put these in different sections and use | ||
| 55 | * the linker script to order them. */ | ||
| 56 | pmd_t pmd0[PTRS_PER_PMD] __attribute__ ((__section__ (".data..vm0.pmd"), aligned(PAGE_SIZE))); | ||
| 57 | #endif | ||
| 58 | |||
| 59 | pgd_t swapper_pg_dir[PTRS_PER_PGD] __attribute__ ((__section__ (".data..vm0.pgd"), aligned(PAGE_SIZE))); | ||
| 60 | pte_t pg0[PT_INITIAL * PTRS_PER_PTE] __attribute__ ((__section__ (".data..vm0.pte"), aligned(PAGE_SIZE))); | ||
| 61 | |||
| 62 | /* | ||
| 63 | * Initial task structure. | ||
| 64 | * | ||
| 65 | * All other task structs will be allocated on slabs in fork.c | ||
| 66 | */ | ||
| 67 | EXPORT_SYMBOL(init_task); | ||
| 68 | |||
| 69 | __asm__(".data"); | ||
| 70 | struct task_struct init_task = INIT_TASK(init_task); | ||
