git://bbs.cooldavid.org / net-next-2.6.git / blame
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|---|---|---|
| fc8c2d76 RA |
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> | |
| 06aa05b3 | 24 | #include <asm/uv/uv.h> |
| fc8c2d76 RA |
25 | |
| 26 | struct kobject *sgi_uv_kobj; | |
| 27 | ||
| 28 | static ssize_t partition_id_show(struct kobject *kobj, | |
| 29 | struct kobj_attribute *attr, char *buf) | |
| 30 | { | |
| 31 | return snprintf(buf, PAGE_SIZE, "%ld\n", sn_partition_id); | |
| 32 | } | |
| 33 | ||
| 34 | static ssize_t coherence_id_show(struct kobject *kobj, | |
| 35 | struct kobj_attribute *attr, char *buf) | |
| 36 | { | |
| 37 | return snprintf(buf, PAGE_SIZE, "%ld\n", partition_coherence_id()); | |
| 38 | } | |
| 39 | ||
| 40 | static struct kobj_attribute partition_id_attr = | |
| 41 | __ATTR(partition_id, S_IRUGO, partition_id_show, NULL); | |
| 42 | ||
| 43 | static struct kobj_attribute coherence_id_attr = | |
| 44 | __ATTR(coherence_id, S_IRUGO, coherence_id_show, NULL); | |
| 45 | ||
| 46 | ||
| 47 | static int __init sgi_uv_sysfs_init(void) | |
| 48 | { | |
| 49 | unsigned long ret; | |
| 50 | ||
| 06aa05b3 RA |
51 | if (!is_uv_system()) |
| 52 | return -ENODEV; | |
| 53 | ||
| fc8c2d76 RA |
54 | if (!sgi_uv_kobj) |
| 55 | sgi_uv_kobj = kobject_create_and_add("sgi_uv", firmware_kobj); | |
| 56 | if (!sgi_uv_kobj) { | |
| 3235dc3f | 57 | printk(KERN_WARNING "kobject_create_and_add sgi_uv failed\n"); |
| fc8c2d76 RA |
58 | return -EINVAL; |
| 59 | } | |
| 60 | ||
| 61 | ret = sysfs_create_file(sgi_uv_kobj, &partition_id_attr.attr); | |
| 62 | if (ret) { | |
| 3235dc3f | 63 | printk(KERN_WARNING "sysfs_create_file partition_id failed\n"); |
| fc8c2d76 RA |
64 | return ret; |
| 65 | } | |
| 66 | ||
| 67 | ret = sysfs_create_file(sgi_uv_kobj, &coherence_id_attr.attr); | |
| 68 | if (ret) { | |
| 3235dc3f | 69 | printk(KERN_WARNING "sysfs_create_file coherence_id failed\n"); |
| fc8c2d76 RA |
70 | return ret; |
| 71 | } | |
| 72 | ||
| 73 | return 0; | |
| 74 | } | |
| 75 | ||
| 76 | device_initcall(sgi_uv_sysfs_init); |