Messages in this thread Patch in this message | | | Date | Tue, 4 May 2004 07:43:53 -0700 | From | Ashok Raj <> | Subject | take3: Updated CPU Hotplug patches for IA64 (pj blessed) Patch [3/7] |
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Name: sysfs_ia64.patch Author: Ashok Raj (Intel Corporation) D: Creation of sysfs via topology_init() creates sysfs entries. The creation of D: the online control file is created separately when the cpu_up is invoked D: in arch independent code. ---
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linux-2.6.5-lhcs-root/arch/ia64/dig/Makefile | 5 ++ linux-2.6.5-lhcs-root/arch/ia64/dig/topology.c | 43 +++++++++++++++++++++++++ linux-2.6.5-lhcs-root/include/asm-ia64/cpu.h | 17 +++++++++ 3 files changed, 65 insertions(+)
diff -puN arch/ia64/dig/Makefile~sysfs_ia64 arch/ia64/dig/Makefile --- linux-2.6.5-lhcs/arch/ia64/dig/Makefile~sysfs_ia64 2004-05-03 16:30:06.886772352 -0700 +++ linux-2.6.5-lhcs-root/arch/ia64/dig/Makefile 2004-05-03 16:30:06.888725478 -0700 @@ -6,4 +6,9 @@ # obj-y := setup.o + +ifndef CONFIG_NUMA +obj-$(CONFIG_IA64_DIG) += topology.o +endif + obj-$(CONFIG_IA64_GENERIC) += machvec.o diff -puN /dev/null arch/ia64/dig/topology.c --- /dev/null 2003-09-15 06:02:17.000000000 -0700 +++ linux-2.6.5-lhcs-root/arch/ia64/dig/topology.c 2004-05-03 16:30:06.888725478 -0700 @@ -0,0 +1,43 @@ +/* + * arch/ia64/dig/topology.c + * Popuate driverfs with topology information. + * Derived entirely from i386/mach-default.c + * Intel Corporation - Ashok Raj + */ +#include <linux/init.h> +#include <linux/smp.h> +#include <linux/cpumask.h> +#include <linux/percpu.h> +#include <linux/notifier.h> +#include <linux/cpu.h> +#include <asm/cpu.h> + +static DEFINE_PER_CPU(struct ia64_cpu, cpu_devices); + +/* + * First Pass: simply borrowed code for now. Later should hook into + * hotplug notification for node/cpu/memory as applicable + */ + +static int arch_register_cpu(int num) +{ + struct node *parent = NULL; + +#ifdef CONFIG_NUMA + //parent = &node_devices[cpu_to_node(num)].node; +#endif + + return register_cpu(&per_cpu(cpu_devices,num).cpu, num, parent); +} + +static int __init topology_init(void) +{ + int i; + + for_each_cpu(i) { + arch_register_cpu(i); + } + return 0; +} + +subsys_initcall(topology_init); diff -puN /dev/null include/asm-ia64/cpu.h --- /dev/null 2003-09-15 06:02:17.000000000 -0700 +++ linux-2.6.5-lhcs-root/include/asm-ia64/cpu.h 2004-05-03 16:30:06.888725478 -0700 @@ -0,0 +1,17 @@ +#ifndef _ASM_IA64_CPU_H_ +#define _ASM_IA64_CPU_H_ + +#include <linux/device.h> +#include <linux/cpu.h> +#include <linux/topology.h> +#include <linux/percpu.h> + +struct ia64_cpu { + struct cpu cpu; +}; + +DECLARE_PER_CPU(struct ia64_cpu, cpu_devices); + +DECLARE_PER_CPU(int, cpu_state); + +#endif /* _ASM_IA64_CPU_H_ */ _ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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