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/numa.h>
   7
   8 /* Proximity bitmap length */
   9 #if MAX_NUMNODES > 256
  10 #define MAX_PXM_DOMAINS MAX_NUMNODES
  11 #else
  12 #define MAX_PXM_DOMAINS (256)   /* Old pxm spec is defined 8 bit */
  13 #endif
  14
  15 extern int pxm_to_node(int);
  16 extern int node_to_pxm(int);
  17 extern int acpi_map_pxm_to_node(int);
  18 extern unsigned char acpi_srat_revision;
  19 extern void disable_srat(void);
  20
  21 extern void bad_srat(void);
  22 extern int srat_disabled(void);
  23
  24 #else                           /* CONFIG_ACPI_NUMA */
  25 static inline void disable_srat(void)
  26 {
  27 }
  28 static inline int pxm_to_node(int pxm)
  29 {
  30         return 0;
  31 }
  32 static inline int node_to_pxm(int node)
  33 {
  34         return 0;
  35 }
  36 #endif                          /* CONFIG_ACPI_NUMA */
  37
  38 #ifdef CONFIG_ACPI_HMAT
  39 extern void disable_hmat(void);
  40 #else                           /* CONFIG_ACPI_HMAT */
  41 static inline void disable_hmat(void)
  42 {
  43 }
  44 #endif                          /* CONFIG_ACPI_HMAT */
  45 #endif                          /* __ACPI_NUMA_H */