Messages in this thread Patch in this message | | | Date | Fri, 3 Oct 2008 11:59:50 -0500 | From | Russ Anderson <> | Subject | [PATCH 4/4] x86: Add sysfs entries for UV v4 |
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[PATCH 4/4] x86: Add sysfs entries for UV v4
Create /sys/firmware/sgi_uv sysfs entries for partition_id and coherence_id.
Signed-off-by: Russ Anderson <rja@sgi.com>
--- arch/x86/kernel/Makefile | 2 - arch/x86/kernel/uv_sysfs.c | 72 +++++++++++++++++++++++++++++++++++++++++++++ include/asm-x86/uv/bios.h | 1 3 files changed, 74 insertions(+), 1 deletion(-)
Index: linux/arch/x86/kernel/Makefile =================================================================== --- linux.orig/arch/x86/kernel/Makefile 2008-10-03 11:05:09.000000000 -0500 +++ linux/arch/x86/kernel/Makefile 2008-10-03 11:05:58.000000000 -0500 @@ -107,7 +107,7 @@ obj-$(CONFIG_OLPC) += olpc.o # 64 bit specific files ifeq ($(CONFIG_X86_64),y) obj-y += genapic_64.o genapic_flat_64.o genx2apic_uv_x.o tlb_uv.o - obj-y += bios_uv.o + obj-y += bios_uv.o uv_sysfs.o obj-y += genx2apic_cluster.o obj-y += genx2apic_phys.o obj-$(CONFIG_X86_PM_TIMER) += pmtimer_64.o Index: linux/arch/x86/kernel/uv_sysfs.c =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 +++ linux/arch/x86/kernel/uv_sysfs.c 2008-10-03 11:05:58.000000000 -0500 @@ -0,0 +1,72 @@ +/* + * This file supports the /sys/firmware/sgi_uv interfaces for SGI UV. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Copyright (c) 2008 Silicon Graphics, Inc. All Rights Reserved. + * Copyright (c) Russ Anderson + */ + +#include <linux/sysdev.h> +#include <asm/uv/bios.h> + +struct kobject *sgi_uv_kobj; + +static ssize_t partition_id_show(struct kobject *kobj, + struct kobj_attribute *attr, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%ld\n", sn_partition_id); +} + +static ssize_t coherence_id_show(struct kobject *kobj, + struct kobj_attribute *attr, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%ld\n", partition_coherence_id()); +} + +static struct kobj_attribute partition_id_attr = + __ATTR(partition_id, S_IRUGO, partition_id_show, NULL); + +static struct kobj_attribute coherence_id_attr = + __ATTR(coherence_id, S_IRUGO, coherence_id_show, NULL); + + +static int __init sgi_uv_sysfs_init(void) +{ + unsigned long ret; + + if (!sgi_uv_kobj) + sgi_uv_kobj = kobject_create_and_add("sgi_uv", firmware_kobj); + if (!sgi_uv_kobj) { + printk(KERN_WARNING "kobject_create_and_add sgi_uv failed \n"); + return -EINVAL; + } + + ret = sysfs_create_file(sgi_uv_kobj, &partition_id_attr.attr); + if (ret) { + printk(KERN_WARNING "sysfs_create_file partition_id failed \n"); + return ret; + } + + ret = sysfs_create_file(sgi_uv_kobj, &coherence_id_attr.attr); + if (ret) { + printk(KERN_WARNING "sysfs_create_file coherence_id failed \n"); + return ret; + } + + return 0; +} + +device_initcall(sgi_uv_sysfs_init); Index: linux/include/asm-x86/uv/bios.h =================================================================== --- linux.orig/include/asm-x86/uv/bios.h 2008-10-03 11:05:37.000000000 -0500 +++ linux/include/asm-x86/uv/bios.h 2008-10-03 11:05:58.000000000 -0500 @@ -89,5 +89,6 @@ extern long uv_coherency_id; extern long uv_region_size; #define partition_coherence_id() (uv_coherency_id) +extern struct kobject *sgi_uv_kobj; /* /sys/firmware/sgi_uv */ #endif /* ASM_X86__UV__BIOS_H */ -- Russ Anderson, OS RAS/Partitioning Project Lead SGI - Silicon Graphics Inc rja@sgi.com
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