diff options
Diffstat (limited to 'arch')
-rw-r--r-- | arch/x86/kernel/Makefile | 2 | ||||
-rw-r--r-- | arch/x86/kernel/uv_sysfs.c | 72 |
2 files changed, 73 insertions, 1 deletions
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile index acc0e8bf043e..cb6ade443f00 100644 --- a/arch/x86/kernel/Makefile +++ b/arch/x86/kernel/Makefile | |||
@@ -108,7 +108,7 @@ obj-$(CONFIG_MICROCODE) += microcode.o | |||
108 | # 64 bit specific files | 108 | # 64 bit specific files |
109 | ifeq ($(CONFIG_X86_64),y) | 109 | ifeq ($(CONFIG_X86_64),y) |
110 | obj-y += genapic_64.o genapic_flat_64.o genx2apic_uv_x.o tlb_uv.o | 110 | obj-y += genapic_64.o genapic_flat_64.o genx2apic_uv_x.o tlb_uv.o |
111 | obj-y += bios_uv.o uv_irq.o | 111 | obj-y += bios_uv.o uv_irq.o uv_sysfs.o |
112 | obj-y += genx2apic_cluster.o | 112 | obj-y += genx2apic_cluster.o |
113 | obj-y += genx2apic_phys.o | 113 | obj-y += genx2apic_phys.o |
114 | obj-$(CONFIG_X86_PM_TIMER) += pmtimer_64.o | 114 | obj-$(CONFIG_X86_PM_TIMER) += pmtimer_64.o |
diff --git a/arch/x86/kernel/uv_sysfs.c b/arch/x86/kernel/uv_sysfs.c new file mode 100644 index 000000000000..67f9b9dbf800 --- /dev/null +++ b/arch/x86/kernel/uv_sysfs.c | |||
@@ -0,0 +1,72 @@ | |||
1 | /* | ||
2 | * This file supports the /sys/firmware/sgi_uv interfaces for SGI UV. | ||
3 | * | ||
4 | * This program is free software; you can redistribute it and/or modify | ||
5 | * it under the terms of the GNU General Public License as published by | ||
6 | * the Free Software Foundation; either version 2 of the License, or | ||
7 | * (at your option) any later version. | ||
8 | * | ||
9 | * This program is distributed in the hope that it will be useful, | ||
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
12 | * GNU General Public License for more details. | ||
13 | * | ||
14 | * You should have received a copy of the GNU General Public License | ||
15 | * along with this program; if not, write to the Free Software | ||
16 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
17 | * | ||
18 | * Copyright (c) 2008 Silicon Graphics, Inc. All Rights Reserved. | ||
19 | * Copyright (c) Russ Anderson | ||
20 | */ | ||
21 | |||
22 | #include <linux/sysdev.h> | ||
23 | #include <asm/uv/bios.h> | ||
24 | |||
25 | struct kobject *sgi_uv_kobj; | ||
26 | |||
27 | static ssize_t partition_id_show(struct kobject *kobj, | ||
28 | struct kobj_attribute *attr, char *buf) | ||
29 | { | ||
30 | return snprintf(buf, PAGE_SIZE, "%ld\n", sn_partition_id); | ||
31 | } | ||
32 | |||
33 | static ssize_t coherence_id_show(struct kobject *kobj, | ||
34 | struct kobj_attribute *attr, char *buf) | ||
35 | { | ||
36 | return snprintf(buf, PAGE_SIZE, "%ld\n", partition_coherence_id()); | ||
37 | } | ||
38 | |||
39 | static struct kobj_attribute partition_id_attr = | ||
40 | __ATTR(partition_id, S_IRUGO, partition_id_show, NULL); | ||
41 | |||
42 | static struct kobj_attribute coherence_id_attr = | ||
43 | __ATTR(coherence_id, S_IRUGO, coherence_id_show, NULL); | ||
44 | |||
45 | |||
46 | static int __init sgi_uv_sysfs_init(void) | ||
47 | { | ||
48 | unsigned long ret; | ||
49 | |||
50 | if (!sgi_uv_kobj) | ||
51 | sgi_uv_kobj = kobject_create_and_add("sgi_uv", firmware_kobj); | ||
52 | if (!sgi_uv_kobj) { | ||
53 | printk(KERN_WARNING "kobject_create_and_add sgi_uv failed \n"); | ||
54 | return -EINVAL; | ||
55 | } | ||
56 | |||
57 | ret = sysfs_create_file(sgi_uv_kobj, &partition_id_attr.attr); | ||
58 | if (ret) { | ||
59 | printk(KERN_WARNING "sysfs_create_file partition_id failed \n"); | ||
60 | return ret; | ||
61 | } | ||
62 | |||
63 | ret = sysfs_create_file(sgi_uv_kobj, &coherence_id_attr.attr); | ||
64 | if (ret) { | ||
65 | printk(KERN_WARNING "sysfs_create_file coherence_id failed \n"); | ||
66 | return ret; | ||
67 | } | ||
68 | |||
69 | return 0; | ||
70 | } | ||
71 | |||
72 | device_initcall(sgi_uv_sysfs_init); | ||