diff options
Diffstat (limited to 'arch/x86/include/asm/uv/uv.h')
| -rw-r--r-- | arch/x86/include/asm/uv/uv.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/arch/x86/include/asm/uv/uv.h b/arch/x86/include/asm/uv/uv.h new file mode 100644 index 000000000..648eb23fe --- /dev/null +++ b/arch/x86/include/asm/uv/uv.h @@ -0,0 +1,44 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_X86_UV_UV_H +#define _ASM_X86_UV_UV_H + +enum uv_system_type {UV_NONE, UV_LEGACY_APIC, UV_X2APIC}; + +#ifdef CONFIG_X86_UV +#include <linux/efi.h> + +#define UV_PROC_NODE "sgi_uv" + +static inline int uv(int uvtype) +{ + /* uv(0) is "any" */ + if (uvtype >= 0 && uvtype <= 30) + return 1 << uvtype; + return 1; +} + +extern unsigned long uv_systab_phys; + +extern enum uv_system_type get_uv_system_type(void); +static inline bool is_early_uv_system(void) +{ + return uv_systab_phys && uv_systab_phys != EFI_INVALID_TABLE_ADDR; +} +extern int is_uv_system(void); +extern int is_uv_hubbed(int uvtype); +extern void uv_cpu_init(void); +extern void uv_nmi_init(void); +extern void uv_system_init(void); + +#else /* !X86_UV */ + +static inline enum uv_system_type get_uv_system_type(void) { return UV_NONE; } +static inline bool is_early_uv_system(void) { return 0; } +static inline int is_uv_system(void) { return 0; } +static inline int is_uv_hubbed(int uv) { return 0; } +static inline void uv_cpu_init(void) { } +static inline void uv_system_init(void) { } + +#endif /* X86_UV */ + +#endif /* _ASM_X86_UV_UV_H */ |