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Commit fc8c2d76 authored by Russ Anderson's avatar Russ Anderson Committed by Ingo Molnar
Browse files

x86: Add sysfs entries for UV v4 



Create /sys/firmware/sgi_uv sysfs entries for partition_id and coherence_id.

Signed-off-by: default avatarRuss Anderson <rja@sgi.com>
Signed-off-by: default avatarH. Peter Anvin <hpa@zytor.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 922402f1

arch/x86/kernel/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -108,7 +108,7 @@ obj-$(CONFIG_MICROCODE) += microcode.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 uv_irq.o

	obj-y				+= bios_uv.o uv_irq.o uv_sysfs.o

        obj-y				+= genx2apic_cluster.o

        obj-y				+= genx2apic_phys.o

        obj-$(CONFIG_X86_PM_TIMER)	+= pmtimer_64.o

arch/x86/kernel/uv_sysfs.c

0 → 100644
+72 −0
Original line number Diff line number Diff line 
/*

 * 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);

include/asm-x86/uv/bios.h

+1 −0
Original line number Diff line number Diff line
@@ -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 */