Home Explore Help
Sign In
samsung-sm8650
/
android_kernel_samsung_sm8650_ksu
2
0
Fork 0
Files Issues 0 Pull Requests 0 Wiki
Tree: 9e449c3f83
Branches Tags
android_kernel_...
/
arch
/
loongarch
/
include
/
asm
/
numa.h

numa.h 1.5 KB
History Raw

12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667 
  1. /* SPDX-License-Identifier: GPL-2.0 */
    2. 

  2. /*
    3. 

  3.  * Author: Jianmin Lv <[email protected]>
    4. 

  4.  *         Huacai Chen <[email protected]>
    5. 

  5.  *
    6. 

  6.  * Copyright (C) 2020-2022 Loongson Technology Corporation Limited
    7. 

  7.  */
    8. 

  8. 

  9. #ifndef _ASM_LOONGARCH_NUMA_H
    10. 

  10. #define _ASM_LOONGARCH_NUMA_H
    11. 

  11. 

  12. #include <linux/nodemask.h>
    13. 

  13. 

  14. #define NODE_ADDRSPACE_SHIFT 44
    15. 

  15. 

  16. #define pa_to_nid(addr)		(((addr) & 0xf00000000000) >> NODE_ADDRSPACE_SHIFT)
    17. 

  17. #define nid_to_addrbase(nid)	(_ULCAST_(nid) << NODE_ADDRSPACE_SHIFT)
    18. 

  18. 

  19. #ifdef CONFIG_NUMA
    20. 

  20. 

  21. extern int numa_off;
    22. 

  22. extern s16 __cpuid_to_node[CONFIG_NR_CPUS];
    23. 

  23. extern nodemask_t numa_nodes_parsed __initdata;
    24. 

  24. 

  25. struct numa_memblk {
    26. 

  26. 	u64			start;
    27. 

  27. 	u64			end;
    28. 

  28. 	int			nid;
    29. 

  29. };
    30. 

  30. 

  31. #define NR_NODE_MEMBLKS		(MAX_NUMNODES*2)
    32. 

  32. struct numa_meminfo {
    33. 

  33. 	int			nr_blks;
    34. 

  34. 	struct numa_memblk	blk[NR_NODE_MEMBLKS];
    35. 

  35. };
    36. 

  36. 

  37. extern int __init numa_add_memblk(int nodeid, u64 start, u64 end);
    38. 

  38. 

  39. extern void __init early_numa_add_cpu(int cpuid, s16 node);
    40. 

  40. extern void numa_add_cpu(unsigned int cpu);
    41. 

  41. extern void numa_remove_cpu(unsigned int cpu);
    42. 

  42. 

  43. static inline void numa_clear_node(int cpu)
    44. 

  44. {
    45. 

  45. }
    46. 

  46. 

  47. static inline void set_cpuid_to_node(int cpuid, s16 node)
    48. 

  48. {
    49. 

  49. 	__cpuid_to_node[cpuid] = node;
    50. 

  50. }
    51. 

  51. 

  52. extern int early_cpu_to_node(int cpu);
    53. 

  53. 

  54. #else
    55. 

  55. 

  56. static inline void early_numa_add_cpu(int cpuid, s16 node)	{ }
    57. 

  57. static inline void numa_add_cpu(unsigned int cpu)		{ }
    58. 

  58. static inline void numa_remove_cpu(unsigned int cpu)		{ }
    59. 

  59. 

  60. static inline int early_cpu_to_node(int cpu)
    61. 

  61. {
    62. 

  62. 	return 0;
    63. 

  63. }
    64. 

  64. 

  65. #endif	/* CONFIG_NUMA */
    66. 

  66. 

  67. #endif	/* _ASM_LOONGARCH_NUMA_H */
    68.