diff options
Diffstat (limited to 'arch/arm/include/asm/mmzone.h')
-rw-r--r-- | arch/arm/include/asm/mmzone.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/arch/arm/include/asm/mmzone.h b/arch/arm/include/asm/mmzone.h new file mode 100644 index 000000000000..628e50356592 --- /dev/null +++ b/arch/arm/include/asm/mmzone.h @@ -0,0 +1,49 @@ +/* + * Discontiguous memory and NUMA support, based on the PowerPC implementation. + * + * Copyright (C) 2012 ARM Limited + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + * + */ + +#ifndef __ASM_ARM_MMZONE_H_ +#define __ASM_ARM_MMZONE_H_ +#ifdef __KERNEL__ + +#include <linux/cpumask.h> + +#ifdef CONFIG_NUMA_ALLOC_NODES +#define NODE_DATA(nid) (node_data[nid]) +extern void __init arm_numa_alloc_nodes(unsigned long max_low); +extern struct pglist_data *node_data[]; +#else +#define arm_numa_alloc_nodes(_mlow) do {} while (0) +#endif + +#ifdef CONFIG_NUMA +extern cpumask_var_t *node_to_cpumask_map; +extern int numa_cpu_lookup_table[]; +extern int pfn_to_nid(unsigned long pfn); +extern void __init arm_setup_nodes(unsigned long min, unsigned long max_high); +extern void __init arm_numa_alloc_cpumask(unsigned long max_low); +#else +#define pfn_to_nid(pfn) (0) +#define arm_setup_nodes(min, max_high) memblock_set_node( \ + __pfn_to_phys(min), \ + __pfn_to_phys(max_high - min), 0) +#define arm_numa_alloc_cpumask(max_low) do {} while (0) +#endif /* CONFIG_NUMA */ + +#endif /* __KERNEL__ */ +#endif /* __ASM_ARM_MMZONE_H_ */ |