fs/reiserfs/journal.c: change return type of dirty_one_transaction
[linux/fpc-iii.git] / arch / c6x / mm / init.c
blob9b374393a8f4ff5589643cc050cbd53c03c58d0b
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Port on Texas Instruments TMS320C6x architecture
5 * Copyright (C) 2004, 2009, 2010, 2011 Texas Instruments Incorporated
6 * Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
7 */
8 #include <linux/mm.h>
9 #include <linux/swap.h>
10 #include <linux/module.h>
11 #include <linux/memblock.h>
12 #ifdef CONFIG_BLK_DEV_RAM
13 #include <linux/blkdev.h>
14 #endif
15 #include <linux/initrd.h>
17 #include <asm/sections.h>
18 #include <linux/uaccess.h>
21 * ZERO_PAGE is a special page that is used for zero-initialized
22 * data and COW.
24 unsigned long empty_zero_page;
25 EXPORT_SYMBOL(empty_zero_page);
28 * paging_init() continues the virtual memory environment setup which
29 * was begun by the code in arch/head.S.
30 * The parameters are pointers to where to stick the starting and ending
31 * addresses of available kernel virtual memory.
33 void __init paging_init(void)
35 struct pglist_data *pgdat = NODE_DATA(0);
36 unsigned long zones_size[MAX_NR_ZONES] = {0, };
38 empty_zero_page = (unsigned long) memblock_alloc(PAGE_SIZE,
39 PAGE_SIZE);
40 if (!empty_zero_page)
41 panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
42 __func__, PAGE_SIZE, PAGE_SIZE);
45 * Set up user data space
47 set_fs(KERNEL_DS);
50 * Define zones
52 zones_size[ZONE_NORMAL] = (memory_end - PAGE_OFFSET) >> PAGE_SHIFT;
53 pgdat->node_zones[ZONE_NORMAL].zone_start_pfn =
54 __pa(PAGE_OFFSET) >> PAGE_SHIFT;
56 free_area_init(zones_size);
59 void __init mem_init(void)
61 high_memory = (void *)(memory_end & PAGE_MASK);
63 /* this will put all memory onto the freelists */
64 memblock_free_all();
66 mem_init_print_info(NULL);