1 files changed, 45 insertions, 0 deletions
diff --git a/include/acpi/acpi_numa.h b/include/acpi/acpi_numa.h
new file mode 100644
index 000000000..b5f594754
--- /dev/null
+++ b/include/acpi/acpi_numa.h
@@ -0,0 +1,45 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ACPI_NUMA_H
+#define __ACPI_NUMA_H
+
+#ifdef CONFIG_ACPI_NUMA
+#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;
+}
+static inline int node_to_pxm(int node)
+{
+	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				/* __ACPI_NUMA_H */