diff options
Diffstat (limited to 'arch/x86/include/asm/uv/uv.h')
| -rw-r--r-- | arch/x86/include/asm/uv/uv.h | 43 |
1 files changed, 43 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..e60c45fd3 --- /dev/null +++ b/arch/x86/include/asm/uv/uv.h @@ -0,0 +1,43 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_X86_UV_UV_H +#define _ASM_X86_UV_UV_H + +#include <asm/tlbflush.h> + +enum uv_system_type {UV_NONE, UV_LEGACY_APIC, UV_X2APIC, UV_NON_UNIQUE_APIC}; + +struct cpumask; +struct mm_struct; + +#ifdef CONFIG_X86_UV +#include <linux/efi.h> + +extern enum uv_system_type get_uv_system_type(void); +static inline bool is_early_uv_system(void) +{ + return !((efi.uv_systab == EFI_INVALID_TABLE_ADDR) || !efi.uv_systab); +} +extern int is_uv_system(void); +extern int is_uv_hubless(void); +extern void uv_cpu_init(void); +extern void uv_nmi_init(void); +extern void uv_system_init(void); +extern const struct cpumask *uv_flush_tlb_others(const struct cpumask *cpumask, + const struct flush_tlb_info *info); + +#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_hubless(void) { return 0; } +static inline void uv_cpu_init(void) { } +static inline void uv_system_init(void) { } +static inline const struct cpumask * +uv_flush_tlb_others(const struct cpumask *cpumask, + const struct flush_tlb_info *info) +{ return cpumask; } + +#endif /* X86_UV */ + +#endif /* _ASM_X86_UV_UV_H */ |