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/* 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>
#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);
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_hubbed(int uv) { 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 */
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