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 #define cfs_get_work_data(type,field,data) container_of(data,type,field)
78 #define cfs_num_online_cpus() num_online_cpus()
79 #define wait_on_page wait_on_page_locked
80 #define our_recalc_sigpending(current) recalc_sigpending()
81 #define strtok(a,b) strpbrk(a, b)
82 #define work_struct_t struct work_struct
85 #define LASSERT_SPIN_LOCKED(lock) LASSERT(spin_is_locked(lock))
86 #define LINVRNT_SPIN_LOCKED(lock) LINVRNT(spin_is_locked(lock))
88 #define LASSERT_SPIN_LOCKED(lock) do {(void)sizeof(lock);} while(0)
89 #define LINVRNT_SPIN_LOCKED(lock) do {(void)sizeof(lock);} while(0)
92 #define LASSERT_SEM_LOCKED(sem) LASSERT(down_trylock(sem) != 0)
93 #define LASSERT_MUTEX_LOCKED(x) LASSERT(mutex_is_locked(x))
95 #define LIBCFS_PANIC(msg) panic(msg)
97 /* ------------------------------------------------------------------- */
99 #define PORTAL_SYMBOL_REGISTER(x)
100 #define PORTAL_SYMBOL_UNREGISTER(x)
102 #define PORTAL_SYMBOL_GET(x) symbol_get(x)
103 #define PORTAL_SYMBOL_PUT(x) symbol_put(x)
105 #define PORTAL_MODULE_USE try_module_get(THIS_MODULE)
106 #define PORTAL_MODULE_UNUSE module_put(THIS_MODULE)
109 /******************************************************************************/
110 /* Module parameter support */
111 #define CFS_MODULE_PARM(name, t, type, perm, desc) \
112 module_param(name, type, perm);\
113 MODULE_PARM_DESC(name, desc)
115 #define CFS_SYSFS_MODULE_PARM 1 /* module parameters accessible via sysfs */
117 /******************************************************************************/
120 /* Use the special GNU C __attribute__ hack to have the compiler check the
121 * printf style argument string against the actual argument count and
125 # warning printf has been defined as a macro...
129 #endif /* __GNUC__ */
131 # define fprintf(a, format, b...) CDEBUG(D_OTHER, format , ## b)
132 # define printf(format, b...) CDEBUG(D_OTHER, format , ## b)
133 # define time(a) CURRENT_TIME
135 # define cfs_num_possible_cpus() num_possible_cpus()
136 # define cfs_num_present_cpus() num_present_cpus()
138 /******************************************************************************/
139 /* Light-weight trace
140 * Support for temporary event tracing with minimal Heisenberg effect. */
141 #define LWT_SUPPORT 0
143 #define LWT_MEMORY (16<<20)
146 # if defined(__KERNEL__)
147 # if !defined(BITS_PER_LONG)
148 # error "BITS_PER_LONG not defined"
150 # elif !defined(__WORDSIZE)
151 # error "__WORDSIZE not defined"
153 # define BITS_PER_LONG __WORDSIZE
156 /* kernel hasn't defined this? */
165 # if BITS_PER_LONG > 32
169 #endif /* !KLWT_SUPPORT */
175 typedef struct _lwt_page {
176 cfs_list_t lwtp_list;
177 struct page *lwtp_page;
178 lwt_event_t *lwtp_events;
182 int lwtc_current_index;
183 lwt_page_t *lwtc_current_page;
186 extern int lwt_enabled;
187 extern lwt_cpu_t lwt_cpus[];
189 /* Note that we _don't_ define LWT_EVENT at all if LWT_SUPPORT isn't set.
190 * This stuff is meant for finding specific problems; it never stays in
191 * production code... */
194 #define LWTWHERE(f,l) f ":" LWTSTR(l)
195 #define LWT_EVENTS_PER_PAGE (PAGE_CACHE_SIZE / sizeof(lwt_event_t))
197 #define LWT_EVENT(p1, p2, p3, p4) \
199 unsigned long flags; \
205 local_irq_save (flags); \
207 cpu = &lwt_cpus[smp_processor_id()]; \
208 p = cpu->lwtc_current_page; \
209 e = &p->lwtp_events[cpu->lwtc_current_index++]; \
211 if (cpu->lwtc_current_index >= LWT_EVENTS_PER_PAGE) { \
212 cpu->lwtc_current_page = \
213 cfs_list_entry (p->lwtp_list.next, \
214 lwt_page_t, lwtp_list); \
215 cpu->lwtc_current_index = 0; \
218 e->lwte_when = get_cycles(); \
219 e->lwte_where = LWTWHERE(__FILE__,__LINE__); \
220 e->lwte_task = current; \
221 e->lwte_p1 = (long)(p1); \
222 e->lwte_p2 = (long)(p2); \
223 e->lwte_p3 = (long)(p3); \
224 e->lwte_p4 = (long)(p4); \
226 local_irq_restore (flags); \
230 #endif /* !KLWT_SUPPORT */
232 extern int lwt_init (void);
233 extern void lwt_fini (void);
234 extern int lwt_lookup_string (int *size, char *knlptr,
235 char *usrptr, int usrsize);
236 extern int lwt_control (int enable, int clear);
237 extern int lwt_snapshot (cfs_cycles_t *now, int *ncpu, int *total_size,
238 void *user_ptr, int user_size);
239 # else /* __KERNEL__ */
240 # define LWT_EVENT(p1,p2,p3,p4) /* no userland implementation yet */
241 # endif /* __KERNEL__ */
242 #endif /* LWT_SUPPORT */
244 /* ------------------------------------------------------------------ */
246 #define IOCTL_LIBCFS_TYPE long
249 # ifndef BITS_PER_LONG
250 # if (~0UL) == 0xffffffffUL
251 # define BITS_PER_LONG 32
253 # define BITS_PER_LONG 64
258 #if BITS_PER_LONG > 32
259 # define LI_POISON ((int)0x5a5a5a5a5a5a5a5a)
260 # define LL_POISON ((long)0x5a5a5a5a5a5a5a5a)
261 # define LP_POISON ((void *)(long)0x5a5a5a5a5a5a5a5a)
263 # define LI_POISON ((int)0x5a5a5a5a)
264 # define LL_POISON ((long)0x5a5a5a5a)
265 # define LP_POISON ((void *)(long)0x5a5a5a5a)
268 /* this is a bit chunky */
270 #define _LWORDSIZE BITS_PER_LONG
272 #if (defined(__KERNEL__) && defined(HAVE_KERN__U64_LONG_LONG)) || \
273 (!defined(__KERNEL__) && defined(HAVE_USER__U64_LONG_LONG))
274 # define LPU64 "%llu"
275 # define LPD64 "%lld"
276 # define LPX64 "%#llx"
277 # define LPX64i "%llx"
278 # define LPO64 "%#llo"
283 # define LPX64 "%#lx"
284 # define LPX64i "%lx"
285 # define LPO64 "%#lo"
290 * long_ptr_t & ulong_ptr_t, same to "long" for gcc
302 # error "No word size defined"
307 #define cfs_smp_processor_id() smp_processor_id()
310 # ifdef CONFIG_PREEMPT
311 # define cfs_get_cpu() ({ preempt_disable(); smp_processor_id(); })
312 # define cfs_put_cpu() preempt_enable()
314 # define cfs_get_cpu() smp_processor_id()
315 # define cfs_put_cpu()
318 # define cfs_get_cpu() get_cpu()
319 # define cfs_put_cpu() put_cpu()
320 #endif /* get_cpu & put_cpu */
322 #ifdef HAVE_SYSCTL_CTLNAME
323 #define INIT_CTL_NAME(a) .ctl_name = a,
324 #define INIT_STRATEGY(a) .strategy = a,
326 #define INIT_CTL_NAME(a)
327 #define INIT_STRATEGY(a)