diff options
Diffstat (limited to 'include/linux/numa.h')
| -rw-r--r-- | include/linux/numa.h | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/include/linux/numa.h b/include/linux/numa.h index 110b0e5d0fb0..a42df804679e 100644 --- a/include/linux/numa.h +++ b/include/linux/numa.h @@ -1,7 +1,7 @@ /* SPDX-License-Identifier: GPL-2.0 */ #ifndef _LINUX_NUMA_H #define _LINUX_NUMA_H - +#include <linux/types.h> #ifdef CONFIG_NODES_SHIFT #define NODES_SHIFT CONFIG_NODES_SHIFT @@ -13,4 +13,32 @@ #define NUMA_NO_NODE (-1) +/* optionally keep NUMA memory info available post init */ +#ifdef CONFIG_NUMA_KEEP_MEMINFO +#define __initdata_or_meminfo +#else +#define __initdata_or_meminfo __initdata +#endif + +#ifdef CONFIG_NUMA +/* Generic implementation available */ +int numa_map_to_online_node(int node); + +/* + * Optional architecture specific implementation, users need a "depends + * on $ARCH" + */ +int phys_to_target_node(phys_addr_t addr); +#else +static inline int numa_map_to_online_node(int node) +{ + return NUMA_NO_NODE; +} + +static inline int phys_to_target_node(phys_addr_t addr) +{ + return NUMA_NO_NODE; +} +#endif + #endif /* _LINUX_NUMA_H */ |