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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_IA64_PERCPU_H
#define _ASM_IA64_PERCPU_H
/*
* Copyright (C) 2002-2003 Hewlett-Packard Co
* David Mosberger-Tang <davidm@hpl.hp.com>
*/
#ifdef __ASSEMBLY__
# define THIS_CPU(var) (var) /* use this to mark accesses to per-CPU variables... */
#else /* !__ASSEMBLY__ */
#include <linux/threads.h>
#ifdef CONFIG_SMP
#ifdef HAVE_MODEL_SMALL_ATTRIBUTE
# define PER_CPU_ATTRIBUTES __attribute__((__model__ (__small__)))
#endif
#define __my_cpu_offset __ia64_per_cpu_var(local_per_cpu_offset)
extern void *per_cpu_init(void);
#else /* ! SMP */
#define per_cpu_init() (__phys_per_cpu_start)
#endif /* SMP */
#define PER_CPU_BASE_SECTION ".data..percpu"
/*
* Be extremely careful when taking the address of this variable! Due to virtual
* remapping, it is different from the canonical address returned by this_cpu_ptr(&var)!
* On the positive side, using __ia64_per_cpu_var() instead of this_cpu_ptr() is slightly
* more efficient.
*/
#define __ia64_per_cpu_var(var) (*({ \
__verify_pcpu_ptr(&(var)); \
((typeof(var) __kernel __force *)&(var)); \
}))
#include <asm-generic/percpu.h>
/* Equal to __per_cpu_offset[smp_processor_id()], but faster to access: */
DECLARE_PER_CPU(unsigned long, local_per_cpu_offset);
#endif /* !__ASSEMBLY__ */
#endif /* _ASM_IA64_PERCPU_H */