4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
30 * Copyright (c) 2011, 2013, Intel Corporation.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
37 #ifndef __LIBCFS_LINUX_KP30_H__
38 #define __LIBCFS_LINUX_KP30_H__
41 #include <linux/kernel.h>
43 #include <linux/string.h>
44 #include <linux/stat.h>
45 #include <linux/init.h>
46 #include <linux/errno.h>
47 #include <linux/unistd.h>
48 #include <linux/kmod.h>
49 #include <linux/notifier.h>
51 #include <linux/miscdevice.h>
52 #include <linux/vmalloc.h>
53 #include <linux/time.h>
54 #include <linux/slab.h>
55 #include <linux/interrupt.h>
56 #include <linux/highmem.h>
57 #include <linux/module.h>
58 #include <linux/version.h>
59 #include <asm/atomic.h>
60 #include <asm/uaccess.h>
61 #include <linux/rwsem.h>
62 #include <linux/proc_fs.h>
63 #include <linux/file.h>
64 #include <linux/smp.h>
65 #include <linux/ctype.h>
66 #include <linux/compiler.h>
68 # include <linux/mm_inline.h>
70 #include <linux/kallsyms.h>
71 #include <linux/moduleparam.h>
72 #include <linux/scatterlist.h>
74 #include <libcfs/linux/portals_compat25.h>
76 /******************************************************************************/
77 /* Module parameter support */
78 #define CFS_MODULE_PARM(name, t, type, perm, desc) \
79 module_param(name, type, perm);\
80 MODULE_PARM_DESC(name, desc)
82 #define CFS_SYSFS_MODULE_PARM 1 /* module parameters accessible via sysfs */
84 /******************************************************************************/
87 /* Use the special GNU C __attribute__ hack to have the compiler check the
88 * printf style argument string against the actual argument count and
92 # warning printf has been defined as a macro...
98 # define fprintf(a, format, b...) CDEBUG(D_OTHER, format , ## b)
99 # define printf(format, b...) CDEBUG(D_OTHER, format , ## b)
100 # define time(a) CURRENT_TIME
102 /******************************************************************************/
103 /* Light-weight trace
104 * Support for temporary event tracing with minimal Heisenberg effect. */
105 #define LWT_SUPPORT 0
107 #define LWT_MEMORY (16<<20)
110 # if defined(__KERNEL__)
111 # if !defined(BITS_PER_LONG)
112 # error "BITS_PER_LONG not defined"
114 # elif !defined(__WORDSIZE)
115 # error "__WORDSIZE not defined"
117 # define BITS_PER_LONG __WORDSIZE
120 /* kernel hasn't defined this? */
129 # if BITS_PER_LONG > 32
133 #endif /* !KLWT_SUPPORT */
139 typedef struct _lwt_page {
140 cfs_list_t lwtp_list;
141 struct page *lwtp_page;
142 lwt_event_t *lwtp_events;
146 int lwtc_current_index;
147 lwt_page_t *lwtc_current_page;
150 extern int lwt_enabled;
151 extern lwt_cpu_t lwt_cpus[];
153 /* Note that we _don't_ define LWT_EVENT at all if LWT_SUPPORT isn't set.
154 * This stuff is meant for finding specific problems; it never stays in
155 * production code... */
158 #define LWTWHERE(f,l) f ":" LWTSTR(l)
159 #define LWT_EVENTS_PER_PAGE (PAGE_CACHE_SIZE / sizeof(lwt_event_t))
161 #define LWT_EVENT(p1, p2, p3, p4) \
163 unsigned long flags; \
169 local_irq_save (flags); \
171 cpu = &lwt_cpus[smp_processor_id()]; \
172 p = cpu->lwtc_current_page; \
173 e = &p->lwtp_events[cpu->lwtc_current_index++]; \
175 if (cpu->lwtc_current_index >= LWT_EVENTS_PER_PAGE) { \
176 cpu->lwtc_current_page = \
177 cfs_list_entry (p->lwtp_list.next, \
178 lwt_page_t, lwtp_list); \
179 cpu->lwtc_current_index = 0; \
182 e->lwte_when = get_cycles(); \
183 e->lwte_where = LWTWHERE(__FILE__,__LINE__); \
184 e->lwte_task = current; \
185 e->lwte_p1 = (long)(p1); \
186 e->lwte_p2 = (long)(p2); \
187 e->lwte_p3 = (long)(p3); \
188 e->lwte_p4 = (long)(p4); \
190 local_irq_restore (flags); \
194 #endif /* !KLWT_SUPPORT */
196 extern int lwt_init (void);
197 extern void lwt_fini (void);
198 extern int lwt_lookup_string (int *size, char *knlptr,
199 char *usrptr, int usrsize);
200 extern int lwt_control (int enable, int clear);
201 extern int lwt_snapshot (cfs_cycles_t *now, int *ncpu, int *total_size,
202 void *user_ptr, int user_size);
203 # else /* __KERNEL__ */
204 # define LWT_EVENT(p1,p2,p3,p4) /* no userland implementation yet */
205 # endif /* __KERNEL__ */
206 #endif /* LWT_SUPPORT */
208 /* ------------------------------------------------------------------ */
210 #define IOCTL_LIBCFS_TYPE long
213 # ifndef BITS_PER_LONG
214 # if (~0UL) == 0xffffffffUL
215 # define BITS_PER_LONG 32
217 # define BITS_PER_LONG 64
222 #if BITS_PER_LONG > 32
223 # define LI_POISON ((int)0x5a5a5a5a5a5a5a5a)
224 # define LL_POISON ((long)0x5a5a5a5a5a5a5a5a)
225 # define LP_POISON ((void *)(long)0x5a5a5a5a5a5a5a5a)
227 # define LI_POISON ((int)0x5a5a5a5a)
228 # define LL_POISON ((long)0x5a5a5a5a)
229 # define LP_POISON ((void *)(long)0x5a5a5a5a)
232 /* this is a bit chunky */
234 #define _LWORDSIZE BITS_PER_LONG
236 #if (defined(__KERNEL__) && defined(HAVE_KERN__U64_LONG_LONG)) || \
237 (!defined(__KERNEL__) && defined(HAVE_USER__U64_LONG_LONG))
238 # define LPU64 "%llu"
239 # define LPD64 "%lld"
240 # define LPX64 "%#llx"
241 # define LPX64i "%llx"
242 # define LPO64 "%#llo"
247 # define LPX64 "%#lx"
248 # define LPX64i "%lx"
249 # define LPO64 "%#lo"
254 * long_ptr_t & ulong_ptr_t, same to "long" for gcc
266 # error "No word size defined"
271 #ifdef HAVE_SYSCTL_CTLNAME
272 #define INIT_CTL_NAME(a) .ctl_name = a,
273 #define INIT_STRATEGY(a) .strategy = a,
275 #define INIT_CTL_NAME(a)
276 #define INIT_STRATEGY(a)