[mirror_ubuntu-hirsute-kernel.git] / arch / x86 / include / asm / uv / uv.h

/* 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 int is_uv_hubless(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 int is_uv_hubless(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 */
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
bdbcdd48 TH	2	#ifndef _ASM_X86_UV_UV_H
	3	#define _ASM_X86_UV_UV_H
	4
a2055abe AL	5	#include <asm/tlbflush.h>
a2055abe AL	6
bdbcdd48 TH	7	enum uv_system_type {UV_NONE, UV_LEGACY_APIC, UV_X2APIC, UV_NON_UNIQUE_APIC};
bdbcdd48 TH	8
58105ef1 RD	9	struct cpumask;
	10	struct mm_struct;
	11
03b48632	12	#ifdef CONFIG_X86_UV
20a8378a	13	#include <linux/efi.h>
bdbcdd48	14
8785968b MT	15	#define UV_PROC_NODE "sgi_uv"
8785968b MT	16
0959f825 MT	17	static inline int uv(int uvtype)
	18	{
	19	/* uv(0) is "any" */
	20	if (uvtype >= 0 && uvtype <= 30)
	21	return 1 << uvtype;
	22	return 1;
	23	}
	24
ec7e1605 AB	25	extern unsigned long uv_systab_phys;
ec7e1605 AB	26
bdbcdd48	27	extern enum uv_system_type get_uv_system_type(void);
20a8378a MT	28	static inline bool is_early_uv_system(void)
20a8378a MT	29	{
ec7e1605	30	return uv_systab_phys && uv_systab_phys != EFI_INVALID_TABLE_ADDR;
20a8378a	31	}
bdbcdd48	32	extern int is_uv_system(void);
8785968b	33	extern int is_uv_hubbed(int uvtype);
0959f825	34	extern int is_uv_hubless(int uvtype);
bdbcdd48	35	extern void uv_cpu_init(void);
78c06176	36	extern void uv_nmi_init(void);
bdbcdd48	37	extern void uv_system_init(void);
bdbcdd48	38	extern const struct cpumask uv_flush_tlb_others(const struct cpumask cpumask,
a2055abe	39	const struct flush_tlb_info *info);
bdbcdd48	40
03b48632	41	#else /* X86_UV */
bdbcdd48 TH	42
bdbcdd48 TH	43	static inline enum uv_system_type get_uv_system_type(void) { return UV_NONE; }
20a8378a	44	static inline bool is_early_uv_system(void) { return 0; }
bdbcdd48	45	static inline int is_uv_system(void) { return 0; }
8785968b	46	static inline int is_uv_hubbed(int uv) { return 0; }
0959f825	47	static inline int is_uv_hubless(int uv) { return 0; }
bdbcdd48 TH	48	static inline void uv_cpu_init(void) { }
bdbcdd48 TH	49	static inline void uv_system_init(void) { }
bdbcdd48	50	static inline const struct cpumask *
a2055abe AL	51	uv_flush_tlb_others(const struct cpumask *cpumask,
a2055abe AL	52	const struct flush_tlb_info *info)
bdbcdd48 TH	53	{ return cpumask; }
bdbcdd48 TH	54
03b48632	55	#endif /* X86_UV */
bdbcdd48 TH	56
bdbcdd48 TH	57	#endif /* _ASM_X86_UV_UV_H */