include/acpi/acpi_numa.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __ACPI_NUMA_H
   3 #define __ACPI_NUMA_H
   4
   5 #ifdef CONFIG_ACPI_NUMA
   6 #include <linux/kernel.h>
   7 #include <linux/numa.h>
   8
   9 /* Proximity bitmap length */
  10 #if MAX_NUMNODES > 256
  11 #define MAX_PXM_DOMAINS MAX_NUMNODES
  12 #else
  13 #define MAX_PXM_DOMAINS (256)   /* Old pxm spec is defined 8 bit */
  14 #endif
  15
  16 extern int pxm_to_node(int);
  17 extern int node_to_pxm(int);
  18 extern int acpi_map_pxm_to_node(int);
  19 extern unsigned char acpi_srat_revision;
  20 extern void disable_srat(void);
  21
  22 extern void bad_srat(void);
  23 extern int srat_disabled(void);
  24
  25 #else                           /* CONFIG_ACPI_NUMA */
  26 static inline void disable_srat(void)
  27 {
  28 }
  29 static inline int pxm_to_node(int pxm)
  30 {
  31         return 0;
  32 }
  33 #endif                          /* CONFIG_ACPI_NUMA */
  34
  35 #ifdef CONFIG_ACPI_HMAT
  36 extern void disable_hmat(void);
  37 #else                           /* CONFIG_ACPI_HMAT */
  38 static inline void disable_hmat(void)
  39 {
  40 }
  41 #endif                          /* CONFIG_ACPI_HMAT */
  42 #endif                          /* __ACP_NUMA_H */