diff options
Diffstat (limited to 'include/acpi/acpi_numa.h')
| -rw-r--r-- | include/acpi/acpi_numa.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/include/acpi/acpi_numa.h b/include/acpi/acpi_numa.h new file mode 100644 index 000000000..a4c6ef809 --- /dev/null +++ b/include/acpi/acpi_numa.h @@ -0,0 +1,42 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __ACPI_NUMA_H +#define __ACPI_NUMA_H + +#ifdef CONFIG_ACPI_NUMA +#include <linux/kernel.h> +#include <linux/numa.h> + +/* Proximity bitmap length */ +#if MAX_NUMNODES > 256 +#define MAX_PXM_DOMAINS MAX_NUMNODES +#else +#define MAX_PXM_DOMAINS (256) /* Old pxm spec is defined 8 bit */ +#endif + +extern int pxm_to_node(int); +extern int node_to_pxm(int); +extern int acpi_map_pxm_to_node(int); +extern unsigned char acpi_srat_revision; +extern void disable_srat(void); + +extern void bad_srat(void); +extern int srat_disabled(void); + +#else /* CONFIG_ACPI_NUMA */ +static inline void disable_srat(void) +{ +} +static inline int pxm_to_node(int pxm) +{ + return 0; +} +#endif /* CONFIG_ACPI_NUMA */ + +#ifdef CONFIG_ACPI_HMAT +extern void disable_hmat(void); +#else /* CONFIG_ACPI_HMAT */ +static inline void disable_hmat(void) +{ +} +#endif /* CONFIG_ACPI_HMAT */ +#endif /* __ACP_NUMA_H */ |