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 #ifdef HAVE_3ARGS_INIT_WORK
78 #define prepare_work(wq,cb,cbdata) \
80 INIT_WORK((wq), (void *)(cb), (void *)(cbdata)); \
83 #define cfs_get_work_data(type,field,data) (data)
87 #define prepare_work(wq,cb,cbdata) \
89 INIT_WORK((wq), (void *)(cb)); \
92 #define cfs_get_work_data(type,field,data) container_of(data,type,field)
96 #define cfs_num_online_cpus() num_online_cpus()
97 #define wait_on_page wait_on_page_locked
98 #define our_recalc_sigpending(current) recalc_sigpending()
99 #define strtok(a,b) strpbrk(a, b)
100 #define work_struct_t struct work_struct
103 #define LASSERT_SPIN_LOCKED(lock) LASSERT(spin_is_locked(lock))
104 #define LINVRNT_SPIN_LOCKED(lock) LINVRNT(spin_is_locked(lock))
106 #define LASSERT_SPIN_LOCKED(lock) do {(void)sizeof(lock);} while(0)
107 #define LINVRNT_SPIN_LOCKED(lock) do {(void)sizeof(lock);} while(0)
110 #define LASSERT_SEM_LOCKED(sem) LASSERT(down_trylock(sem) != 0)
111 #define LASSERT_MUTEX_LOCKED(x) LASSERT(mutex_is_locked(x))
113 #ifdef HAVE_SEM_COUNT_ATOMIC
114 #define SEM_COUNT(sem) (atomic_read(&(sem)->count))
116 #define SEM_COUNT(sem) ((sem)->count)
119 #define LIBCFS_PANIC(msg) panic(msg)
121 /* ------------------------------------------------------------------- */
123 #define PORTAL_SYMBOL_REGISTER(x)
124 #define PORTAL_SYMBOL_UNREGISTER(x)
126 #define PORTAL_SYMBOL_GET(x) symbol_get(x)
127 #define PORTAL_SYMBOL_PUT(x) symbol_put(x)
129 #define PORTAL_MODULE_USE try_module_get(THIS_MODULE)
130 #define PORTAL_MODULE_UNUSE module_put(THIS_MODULE)
133 /******************************************************************************/
134 /* Module parameter support */
135 #define CFS_MODULE_PARM(name, t, type, perm, desc) \
136 module_param(name, type, perm);\
137 MODULE_PARM_DESC(name, desc)
139 #define CFS_SYSFS_MODULE_PARM 1 /* module parameters accessible via sysfs */
141 /******************************************************************************/
144 /* Use the special GNU C __attribute__ hack to have the compiler check the
145 * printf style argument string against the actual argument count and
149 # warning printf has been defined as a macro...
153 #endif /* __GNUC__ */
155 # define fprintf(a, format, b...) CDEBUG(D_OTHER, format , ## b)
156 # define printf(format, b...) CDEBUG(D_OTHER, format , ## b)
157 # define time(a) CURRENT_TIME
159 # define cfs_num_possible_cpus() num_possible_cpus()
160 # define cfs_num_present_cpus() num_present_cpus()
162 /******************************************************************************/
163 /* Light-weight trace
164 * Support for temporary event tracing with minimal Heisenberg effect. */
165 #define LWT_SUPPORT 0
167 #define LWT_MEMORY (16<<20)
170 # if defined(__KERNEL__)
171 # if !defined(BITS_PER_LONG)
172 # error "BITS_PER_LONG not defined"
174 # elif !defined(__WORDSIZE)
175 # error "__WORDSIZE not defined"
177 # define BITS_PER_LONG __WORDSIZE
180 /* kernel hasn't defined this? */
189 # if BITS_PER_LONG > 32
193 #endif /* !KLWT_SUPPORT */
199 typedef struct _lwt_page {
200 cfs_list_t lwtp_list;
201 struct page *lwtp_page;
202 lwt_event_t *lwtp_events;
206 int lwtc_current_index;
207 lwt_page_t *lwtc_current_page;
210 extern int lwt_enabled;
211 extern lwt_cpu_t lwt_cpus[];
213 /* Note that we _don't_ define LWT_EVENT at all if LWT_SUPPORT isn't set.
214 * This stuff is meant for finding specific problems; it never stays in
215 * production code... */
218 #define LWTWHERE(f,l) f ":" LWTSTR(l)
219 #define LWT_EVENTS_PER_PAGE (CFS_PAGE_SIZE / sizeof (lwt_event_t))
221 #define LWT_EVENT(p1, p2, p3, p4) \
223 unsigned long flags; \
229 local_irq_save (flags); \
231 cpu = &lwt_cpus[smp_processor_id()]; \
232 p = cpu->lwtc_current_page; \
233 e = &p->lwtp_events[cpu->lwtc_current_index++]; \
235 if (cpu->lwtc_current_index >= LWT_EVENTS_PER_PAGE) { \
236 cpu->lwtc_current_page = \
237 cfs_list_entry (p->lwtp_list.next, \
238 lwt_page_t, lwtp_list); \
239 cpu->lwtc_current_index = 0; \
242 e->lwte_when = get_cycles(); \
243 e->lwte_where = LWTWHERE(__FILE__,__LINE__); \
244 e->lwte_task = current; \
245 e->lwte_p1 = (long)(p1); \
246 e->lwte_p2 = (long)(p2); \
247 e->lwte_p3 = (long)(p3); \
248 e->lwte_p4 = (long)(p4); \
250 local_irq_restore (flags); \
254 #endif /* !KLWT_SUPPORT */
256 extern int lwt_init (void);
257 extern void lwt_fini (void);
258 extern int lwt_lookup_string (int *size, char *knlptr,
259 char *usrptr, int usrsize);
260 extern int lwt_control (int enable, int clear);
261 extern int lwt_snapshot (cfs_cycles_t *now, int *ncpu, int *total_size,
262 void *user_ptr, int user_size);
263 # else /* __KERNEL__ */
264 # define LWT_EVENT(p1,p2,p3,p4) /* no userland implementation yet */
265 # endif /* __KERNEL__ */
266 #endif /* LWT_SUPPORT */
268 /* ------------------------------------------------------------------ */
270 #define IOCTL_LIBCFS_TYPE long
273 # ifndef BITS_PER_LONG
274 # if (~0UL) == 0xffffffffUL
275 # define BITS_PER_LONG 32
277 # define BITS_PER_LONG 64
282 #if BITS_PER_LONG > 32
283 # define LI_POISON ((int)0x5a5a5a5a5a5a5a5a)
284 # define LL_POISON ((long)0x5a5a5a5a5a5a5a5a)
285 # define LP_POISON ((void *)(long)0x5a5a5a5a5a5a5a5a)
287 # define LI_POISON ((int)0x5a5a5a5a)
288 # define LL_POISON ((long)0x5a5a5a5a)
289 # define LP_POISON ((void *)(long)0x5a5a5a5a)
292 /* this is a bit chunky */
294 #define _LWORDSIZE BITS_PER_LONG
296 #if (defined(__KERNEL__) && defined(HAVE_KERN__U64_LONG_LONG)) || \
297 (!defined(__KERNEL__) && defined(HAVE_USER__U64_LONG_LONG))
298 # define LPU64 "%llu"
299 # define LPD64 "%lld"
300 # define LPX64 "%#llx"
301 # define LPX64i "%llx"
302 # define LPO64 "%#llo"
307 # define LPX64 "%#lx"
308 # define LPX64i "%lx"
309 # define LPO64 "%#lo"
314 * long_ptr_t & ulong_ptr_t, same to "long" for gcc
326 # error "No word size defined"
331 /* compat macroses */
332 #ifndef HAVE_SCATTERLIST_SETPAGE
333 static inline void sg_set_page(struct scatterlist *sg, struct page *page,
334 unsigned int len, unsigned int offset)
341 static inline void sg_assign_page(struct scatterlist *sg, struct page *page)
347 #define cfs_smp_processor_id() smp_processor_id()
350 # ifdef CONFIG_PREEMPT
351 # define cfs_get_cpu() ({ preempt_disable(); smp_processor_id(); })
352 # define cfs_put_cpu() preempt_enable()
354 # define cfs_get_cpu() smp_processor_id()
355 # define cfs_put_cpu()
358 # define cfs_get_cpu() get_cpu()
359 # define cfs_put_cpu() put_cpu()
360 #endif /* get_cpu & put_cpu */
362 #ifdef HAVE_SYSCTL_CTLNAME
363 #define INIT_CTL_NAME(a) .ctl_name = a,
364 #define INIT_STRATEGY(a) .strategy = a,
366 #define INIT_CTL_NAME(a)
367 #define INIT_STRATEGY(a)