uv.h (1123B)
1/* SPDX-License-Identifier: GPL-2.0 */ 2#ifndef _ASM_X86_UV_UV_H 3#define _ASM_X86_UV_UV_H 4 5enum uv_system_type {UV_NONE, UV_LEGACY_APIC, UV_X2APIC}; 6 7#ifdef CONFIG_X86_UV 8#include <linux/efi.h> 9 10#define UV_PROC_NODE "sgi_uv" 11 12static inline int uv(int uvtype) 13{ 14 /* uv(0) is "any" */ 15 if (uvtype >= 0 && uvtype <= 30) 16 return 1 << uvtype; 17 return 1; 18} 19 20extern unsigned long uv_systab_phys; 21 22extern enum uv_system_type get_uv_system_type(void); 23static inline bool is_early_uv_system(void) 24{ 25 return uv_systab_phys && uv_systab_phys != EFI_INVALID_TABLE_ADDR; 26} 27extern int is_uv_system(void); 28extern int is_uv_hubbed(int uvtype); 29extern void uv_cpu_init(void); 30extern void uv_nmi_init(void); 31extern void uv_system_init(void); 32 33#else /* !X86_UV */ 34 35static inline enum uv_system_type get_uv_system_type(void) { return UV_NONE; } 36static inline bool is_early_uv_system(void) { return 0; } 37static inline int is_uv_system(void) { return 0; } 38static inline int is_uv_hubbed(int uv) { return 0; } 39static inline void uv_cpu_init(void) { } 40static inline void uv_system_init(void) { } 41 42#endif /* X86_UV */ 43 44#endif /* _ASM_X86_UV_UV_H */