1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _ASM_X86_UV_UV_H
3 #define _ASM_X86_UV_UV_H
4
5 enum 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
12 static 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
20 extern unsigned long uv_systab_phys;
21
22 extern enum uv_system_type get_uv_system_type(void);
23 static inline bool is_early_uv_system(void)
24 {
25 return uv_systab_phys && uv_systab_phys != EFI_INVALID_TABLE_ADDR;
26 }
27 extern int is_uv_system(void);
28 extern int is_uv_hubbed(int uvtype);
29 extern void uv_cpu_init(void);
30 extern void uv_nmi_init(void);
31 extern void uv_system_init(void);
32
33 #else /* !X86_UV */
34
35 static inline enum uv_system_type get_uv_system_type(void) { return UV_NONE; }
36 static inline bool is_early_uv_system(void) { return 0; }
37 static inline int is_uv_system(void) { return 0; }
38 static inline int is_uv_hubbed(int uv) { return 0; }
39 static inline void uv_cpu_init(void) { }
40 static inline void uv_system_init(void) { }
41
42 #endif /* X86_UV */
43
44 #endif /* _ASM_X86_UV_UV_H */
45
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