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/*
* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 only,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License version 2 for more details (a copy is included
* in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU General Public License
* version 2 along with this program; If not, see
* http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*
* GPL HEADER END
*/
/*
* Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
* Copyright (c) 2011, 2012, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
* Lustre is a trademark of Sun Microsystems, Inc.
*/
#ifndef __LIBCFS_LINUX_KP30_H__
#define __LIBCFS_LINUX_KP30_H__
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/string.h>
#include <linux/stat.h>
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/unistd.h>
#include <linux/kmod.h>
#include <linux/notifier.h>
#include <linux/fs.h>
#include <linux/miscdevice.h>
#include <linux/vmalloc.h>
#include <linux/time.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/highmem.h>
#include <linux/module.h>
#include <asm/atomic.h>
#include <asm/uaccess.h>
#include <linux/rwsem.h>
#include <linux/proc_fs.h>
#include <linux/file.h>
#include <linux/smp.h>
#include <linux/ctype.h>
#include <linux/compiler.h>
#ifdef HAVE_MM_INLINE
# include <linux/mm_inline.h>
#endif
#include <linux/kallsyms.h>
#include <linux/moduleparam.h>
#include <linux/scatterlist.h>
#include <linux/libcfs/linux/portals_compat25.h>
/******************************************************************************/
/* Module parameter support */
#define CFS_MODULE_PARM(name, t, type, perm, desc) \
module_param(name, type, perm);\
MODULE_PARM_DESC(name, desc)
#define CFS_SYSFS_MODULE_PARM 1 /* module parameters accessible via sysfs */
/******************************************************************************/
/* Light-weight trace
* Support for temporary event tracing with minimal Heisenberg effect. */
#define LWT_SUPPORT 0
#define LWT_MEMORY (16<<20)
#ifndef KLWT_SUPPORT
# if !defined(BITS_PER_LONG)
# error "BITS_PER_LONG not defined"
# endif
/* kernel hasn't defined this? */
typedef struct {
long long lwte_when;
char *lwte_where;
void *lwte_task;
long lwte_p1;
long lwte_p2;
long lwte_p3;
long lwte_p4;
# if BITS_PER_LONG > 32
long lwte_pad;
# endif
} lwt_event_t;
#endif /* !KLWT_SUPPORT */
#if LWT_SUPPORT
# if !KLWT_SUPPORT
typedef struct _lwt_page {
struct list_head lwtp_list;
struct page *lwtp_page;
lwt_event_t *lwtp_events;
} lwt_page_t;
typedef struct {
int lwtc_current_index;
lwt_page_t *lwtc_current_page;
} lwt_cpu_t;
extern int lwt_enabled;
extern lwt_cpu_t lwt_cpus[];
/* Note that we _don't_ define LWT_EVENT at all if LWT_SUPPORT isn't set.
* This stuff is meant for finding specific problems; it never stays in
* production code... */
#define LWTSTR(n) #n
#define LWTWHERE(f,l) f ":" LWTSTR(l)
#define LWT_EVENTS_PER_PAGE (PAGE_CACHE_SIZE / sizeof (lwt_event_t))
#define LWT_EVENT(p1, p2, p3, p4) \
do { \
unsigned long flags; \
lwt_cpu_t *cpu; \
lwt_page_t *p; \
lwt_event_t *e; \
\
if (lwt_enabled) { \
local_irq_save (flags); \
\
cpu = &lwt_cpus[smp_processor_id()]; \
p = cpu->lwtc_current_page; \
e = &p->lwtp_events[cpu->lwtc_current_index++]; \
\
if (cpu->lwtc_current_index >= LWT_EVENTS_PER_PAGE) { \
cpu->lwtc_current_page = \
list_entry (p->lwtp_list.next, \
lwt_page_t, lwtp_list); \
cpu->lwtc_current_index = 0; \
} \
\
e->lwte_when = get_cycles(); \
e->lwte_where = LWTWHERE(__FILE__,__LINE__); \
e->lwte_task = current; \
e->lwte_p1 = (long)(p1); \
e->lwte_p2 = (long)(p2); \
e->lwte_p3 = (long)(p3); \
e->lwte_p4 = (long)(p4); \
\
local_irq_restore (flags); \
} \
} while (0)
#endif /* !KLWT_SUPPORT */
extern int lwt_init (void);
extern void lwt_fini (void);
extern int lwt_lookup_string (int *size, char *knlptr,
char *usrptr, int usrsize);
extern int lwt_control (int enable, int clear);
extern int lwt_snapshot (cfs_cycles_t *now, int *ncpu, int *total_size,
void *user_ptr, int user_size);
#endif /* LWT_SUPPORT */
/* ------------------------------------------------------------------ */
#define IOCTL_LIBCFS_TYPE long
#ifdef __CYGWIN__
# ifndef BITS_PER_LONG
# define BITS_PER_LONG 64
# endif
#endif
# define LI_POISON 0x5a5a5a5a
#if BITS_PER_LONG > 32
# define LL_POISON 0x5a5a5a5a5a5a5a5aL
#else
# define LL_POISON 0x5a5a5a5aL
#endif
# define LP_POISON ((void *)LL_POISON)
/* this is a bit chunky */
#define _LWORDSIZE BITS_PER_LONG
# define LPU64 "%llu"
# define LPD64 "%lld"
# define LPX64 "%#llx"
# define LPX64i "%llx"
# define LPO64 "%#llo"
# define LPF64 "L"
/*
* long_ptr_t & ulong_ptr_t, same to "long" for gcc
*/
# define LPLU "%lu"
# define LPLD "%ld"
# define LPLX "%#lx"
/*
* pid_t
*/
# define LPPID "%d"
#undef _LWORDSIZE
/* compat macroses */
#ifndef get_cpu
# ifdef CONFIG_PREEMPT
# define get_cpu() ({ preempt_disable(); smp_processor_id(); })
# define put_cpu() preempt_enable()
# else
# define get_cpu() smp_processor_id()
# define put_cpu()
# endif
#else
#endif /* get_cpu & put_cpu */
#define INIT_CTL_NAME(a)
#define INIT_STRATEGY(a)
#endif
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