linux/arch/ia64/include/asm/percpu.h
Linus Torvalds 1f73897861 Merge branch 'for-35' of git://repo.or.cz/linux-kbuild
* 'for-35' of git://repo.or.cz/linux-kbuild: (81 commits)
  kbuild: Revert part of e8d400a to resolve a conflict
  kbuild: Fix checking of scm-identifier variable
  gconfig: add support to show hidden options that have prompts
  menuconfig: add support to show hidden options which have prompts
  gconfig: remove show_debug option
  gconfig: remove dbg_print_ptype() and dbg_print_stype()
  kconfig: fix zconfdump()
  kconfig: some small fixes
  add random binaries to .gitignore
  kbuild: Include gen_initramfs_list.sh and the file list in the .d file
  kconfig: recalc symbol value before showing search results
  .gitignore: ignore *.lzo files
  headerdep: perlcritic warning
  scripts/Makefile.lib: Align the output of LZO
  kbuild: Generate modules.builtin in make modules_install
  Revert "kbuild: specify absolute paths for cscope"
  kbuild: Do not unnecessarily regenerate modules.builtin
  headers_install: use local file handles
  headers_check: fix perl warnings
  export_report: fix perl warnings
  ...
2010-06-01 08:55:52 -07:00

54 lines
1.3 KiB
C

#ifndef _ASM_IA64_PERCPU_H
#define _ASM_IA64_PERCPU_H
/*
* Copyright (C) 2002-2003 Hewlett-Packard Co
* David Mosberger-Tang <davidm@hpl.hp.com>
*/
#define PERCPU_ENOUGH_ROOM PERCPU_PAGE_SIZE
#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 __get_cpu_var(var)!
* On the positive side, using __ia64_per_cpu_var() instead of __get_cpu_var() 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 */