arch/x86/include/asm/uv/uv.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _ASM_X86_UV_UV_H
   3 #define _ASM_X86_UV_UV_H
   4
   5 #include <asm/tlbflush.h>
   6
   7 enum uv_system_type {UV_NONE, UV_LEGACY_APIC, UV_X2APIC, UV_NON_UNIQUE_APIC};
   8
   9 struct cpumask;
  10 struct mm_struct;
  11
  12 #ifdef CONFIG_X86_UV
  13 #include <linux/efi.h>
  14
  15 extern enum uv_system_type get_uv_system_type(void);
  16 static inline bool is_early_uv_system(void)
  17 {
  18         return !((efi.uv_systab == EFI_INVALID_TABLE_ADDR) || !efi.uv_systab);
  19 }
  20 extern int is_uv_system(void);
  21 extern int is_uv_hubless(void);
  22 extern void uv_cpu_init(void);
  23 extern void uv_nmi_init(void);
  24 extern void uv_system_init(void);
  25 extern const struct cpumask *uv_flush_tlb_others(const struct cpumask *cpumask,
  26                                                  const struct flush_tlb_info *info);
  27
  28 #else   /* X86_UV */
  29
  30 static inline enum uv_system_type get_uv_system_type(void) { return UV_NONE; }
  31 static inline bool is_early_uv_system(void)     { return 0; }
  32 static inline int is_uv_system(void)    { return 0; }
  33 static inline int is_uv_hubless(void)   { return 0; }
  34 static inline void uv_cpu_init(void)    { }
  35 static inline void uv_system_init(void) { }
  36 static inline const struct cpumask *
  37 uv_flush_tlb_others(const struct cpumask *cpumask,
  38                     const struct flush_tlb_info *info)
  39 { return cpumask; }
  40
  41 #endif  /* X86_UV */
  42
  43 #endif  /* _ASM_X86_UV_UV_H */