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[Xen-changelog] [xen-unstable] [IA64] Move asm/percpu.h to linux-xen

From: Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>

Date: Fri, 09 Feb 2007 09:40:15 -0800

Delivery-date: Fri, 09 Feb 2007 09:45:37 -0800

List-id: BK change log <xen-changelog.lists.xensource.com>

# HG changeset patch # User awilliam@xxxxxxxxxxxx # Date 1169570726 25200 # Node ID 8bfc6e85eeba6b79ffc8d1f1f8d7049afeed1e88 # Parent 9576f09c9effb16bb0a99b8a4bbad6fe57dc9213 [IA64] Move asm/percpu.h to linux-xen Modified by upcoming lazy FP save/restore code Signed-off-by: Alex Williamson <alex.williamson@xxxxxx> --- xen/include/asm-ia64/linux/asm/percpu.h | 72 ----------------------- xen/include/asm-ia64/linux-xen/asm/README.origin | 1 xen/include/asm-ia64/linux-xen/asm/percpu.h | 72 +++++++++++++++++++++++ xen/include/asm-ia64/linux/asm/README.origin | 1 4 files changed, 73 insertions(+), 73 deletions(-) diff -r 9576f09c9eff -r 8bfc6e85eeba xen/include/asm-ia64/linux-xen/asm/README.origin --- a/xen/include/asm-ia64/linux-xen/asm/README.origin Tue Jan 23 09:08:03 2007 -0700 +++ b/xen/include/asm-ia64/linux-xen/asm/README.origin Tue Jan 23 09:45:26 2007 -0700 @@ -18,6 +18,7 @@ numa.h -> linux/include/asm-ia64/numa. numa.h -> linux/include/asm-ia64/numa.h page.h -> linux/include/asm-ia64/page.h pal.h -> linux/include/asm-ia64/pal.h +percpu.h -> linux/include/asm-ia64/percpu.h pgalloc.h -> linux/include/asm-ia64/pgalloc.h pgtable.h -> linux/include/asm-ia64/pgtable.h processor.h -> linux/include/asm-ia64/processor.h diff -r 9576f09c9eff -r 8bfc6e85eeba xen/include/asm-ia64/linux-xen/asm/percpu.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/xen/include/asm-ia64/linux-xen/asm/percpu.h Tue Jan 23 09:45:26 2007 -0700 @@ -0,0 +1,72 @@ +#ifndef _ASM_IA64_PERCPU_H +#define _ASM_IA64_PERCPU_H + +/* + * Copyright (C) 2002-2003 Hewlett-Packard Co + * David Mosberger-Tang <davidm@xxxxxxxxxx> + */ + +#define PERCPU_ENOUGH_ROOM PERCPU_PAGE_SIZE + +#ifdef __ASSEMBLY__ +# define THIS_CPU(var) (per_cpu__##var) /* use this to mark accesses to per-CPU variables... */ +#else /* !__ASSEMBLY__ */ + +#include <linux/config.h> + +#include <linux/threads.h> + +#ifdef HAVE_MODEL_SMALL_ATTRIBUTE +# define __SMALL_ADDR_AREA __attribute__((__model__ (__small__))) +#else +# define __SMALL_ADDR_AREA +#endif + +#define DECLARE_PER_CPU(type, name) \ + extern __SMALL_ADDR_AREA __typeof__(type) per_cpu__##name + +/* Separate out the type, so (int[3], foo) works. */ +#define DEFINE_PER_CPU(type, name) \ + __attribute__((__section__(".data.percpu"))) \ + __SMALL_ADDR_AREA __typeof__(type) per_cpu__##name + +/* + * Pretty much a literal copy of asm-generic/percpu.h, except that percpu_modcopy() is an + * external routine, to avoid include-hell. + */ +#ifdef CONFIG_SMP + +extern unsigned long __per_cpu_offset[NR_CPUS]; + +/* Equal to __per_cpu_offset[smp_processor_id()], but faster to access: */ +DECLARE_PER_CPU(unsigned long, local_per_cpu_offset); + +#define per_cpu(var, cpu) (*RELOC_HIDE(&per_cpu__##var, __per_cpu_offset[cpu])) +#define __get_cpu_var(var) (*RELOC_HIDE(&per_cpu__##var, __ia64_per_cpu_var(local_per_cpu_offset))) + +extern void percpu_modcopy(void *pcpudst, const void *src, unsigned long size); +extern void setup_per_cpu_areas (void); +extern void *per_cpu_init(void); + +#else /* ! SMP */ + +#define per_cpu(var, cpu) (*((void)(cpu), &per_cpu__##var)) +#define __get_cpu_var(var) per_cpu__##var +#define per_cpu_init() (__phys_per_cpu_start) + +#endif /* SMP */ + +#define EXPORT_PER_CPU_SYMBOL(var) EXPORT_SYMBOL(per_cpu__##var) +#define EXPORT_PER_CPU_SYMBOL_GPL(var) EXPORT_SYMBOL_GPL(per_cpu__##var) + +/* + * 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) (per_cpu__##var) + +#endif /* !__ASSEMBLY__ */ + +#endif /* _ASM_IA64_PERCPU_H */ diff -r 9576f09c9eff -r 8bfc6e85eeba xen/include/asm-ia64/linux/asm/README.origin --- a/xen/include/asm-ia64/linux/asm/README.origin Tue Jan 23 09:08:03 2007 -0700 +++ b/xen/include/asm-ia64/linux/asm/README.origin Tue Jan 23 09:45:26 2007 -0700 @@ -28,7 +28,6 @@ param.h -> linux/include/asm-ia64/para param.h -> linux/include/asm-ia64/param.h patch.h -> linux/include/asm-ia64/patch.h pci.h -> linux/include/asm-ia64/pci.h -percpu.h -> linux/include/asm-ia64/percpu.h rse.h -> linux/include/asm-ia64/rse.h sal.h -> linux/include/asm-ia64/sal.h sections.h -> linux/include/asm-ia64/sections.h diff -r 9576f09c9eff -r 8bfc6e85eeba xen/include/asm-ia64/linux/asm/percpu.h --- a/xen/include/asm-ia64/linux/asm/percpu.h Tue Jan 23 09:08:03 2007 -0700 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,72 +0,0 @@ -#ifndef _ASM_IA64_PERCPU_H -#define _ASM_IA64_PERCPU_H - -/* - * Copyright (C) 2002-2003 Hewlett-Packard Co - * David Mosberger-Tang <davidm@xxxxxxxxxx> - */ - -#define PERCPU_ENOUGH_ROOM PERCPU_PAGE_SIZE - -#ifdef __ASSEMBLY__ -# define THIS_CPU(var) (per_cpu__##var) /* use this to mark accesses to per-CPU variables... */ -#else /* !__ASSEMBLY__ */ - -#include <linux/config.h> - -#include <linux/threads.h> - -#ifdef HAVE_MODEL_SMALL_ATTRIBUTE -# define __SMALL_ADDR_AREA __attribute__((__model__ (__small__))) -#else -# define __SMALL_ADDR_AREA -#endif - -#define DECLARE_PER_CPU(type, name) \ - extern __SMALL_ADDR_AREA __typeof__(type) per_cpu__##name - -/* Separate out the type, so (int[3], foo) works. */ -#define DEFINE_PER_CPU(type, name) \ - __attribute__((__section__(".data.percpu"))) \ - __SMALL_ADDR_AREA __typeof__(type) per_cpu__##name - -/* - * Pretty much a literal copy of asm-generic/percpu.h, except that percpu_modcopy() is an - * external routine, to avoid include-hell. - */ -#ifdef CONFIG_SMP - -extern unsigned long __per_cpu_offset[NR_CPUS]; - -/* Equal to __per_cpu_offset[smp_processor_id()], but faster to access: */ -DECLARE_PER_CPU(unsigned long, local_per_cpu_offset); - -#define per_cpu(var, cpu) (*RELOC_HIDE(&per_cpu__##var, __per_cpu_offset[cpu])) -#define __get_cpu_var(var) (*RELOC_HIDE(&per_cpu__##var, __ia64_per_cpu_var(local_per_cpu_offset))) - -extern void percpu_modcopy(void *pcpudst, const void *src, unsigned long size); -extern void setup_per_cpu_areas (void); -extern void *per_cpu_init(void); - -#else /* ! SMP */ - -#define per_cpu(var, cpu) (*((void)(cpu), &per_cpu__##var)) -#define __get_cpu_var(var) per_cpu__##var -#define per_cpu_init() (__phys_per_cpu_start) - -#endif /* SMP */ - -#define EXPORT_PER_CPU_SYMBOL(var) EXPORT_SYMBOL(per_cpu__##var) -#define EXPORT_PER_CPU_SYMBOL_GPL(var) EXPORT_SYMBOL_GPL(per_cpu__##var) - -/* - * 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) (per_cpu__##var) - -#endif /* !__ASSEMBLY__ */ - -#endif /* _ASM_IA64_PERCPU_H */ _______________________________________________ Xen-changelog mailing list Xen-changelog@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-changelog

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