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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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74862b03b4
Add recognition and support for UV4 hubless systems. Signed-off-by: Mike Travis <travis@sgi.com> Reviewed-by: Russ Anderson <rja@hpe.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Dimitri Sivanich <sivanich@hpe.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20170125163517.398537358@asylum.americas.sgi.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
38 lines
1.1 KiB
C
38 lines
1.1 KiB
C
#ifndef _ASM_X86_UV_UV_H
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#define _ASM_X86_UV_UV_H
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enum uv_system_type {UV_NONE, UV_LEGACY_APIC, UV_X2APIC, UV_NON_UNIQUE_APIC};
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struct cpumask;
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struct mm_struct;
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#ifdef CONFIG_X86_UV
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extern enum uv_system_type get_uv_system_type(void);
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extern int is_uv_system(void);
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extern int is_uv_hubless(void);
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extern void uv_cpu_init(void);
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extern void uv_nmi_init(void);
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extern void uv_system_init(void);
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extern const struct cpumask *uv_flush_tlb_others(const struct cpumask *cpumask,
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struct mm_struct *mm,
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unsigned long start,
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unsigned long end,
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unsigned int cpu);
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#else /* X86_UV */
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static inline enum uv_system_type get_uv_system_type(void) { return UV_NONE; }
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static inline int is_uv_system(void) { return 0; }
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static inline int is_uv_hubless(void) { return 0; }
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static inline void uv_cpu_init(void) { }
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static inline void uv_system_init(void) { }
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static inline const struct cpumask *
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uv_flush_tlb_others(const struct cpumask *cpumask, struct mm_struct *mm,
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unsigned long start, unsigned long end, unsigned int cpu)
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{ return cpumask; }
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#endif /* X86_UV */
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#endif /* _ASM_X86_UV_UV_H */
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