freebsd-dev/sys/mips/rmi/perfmon_utils.h
2009-10-29 21:14:10 +00:00

127 lines
3.1 KiB
C

/*-
* Copyright (c) 2003-2009 RMI Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of RMI Corporation, nor the names of its contributors,
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* RMI_BSD */
#ifndef UTILS_H
#define UTILS_H
#include <machine/stdarg.h> /* variable args */
/* TODO optimize of mips, even i & (i-1) is better */
static int __inline__
get_set_bit_count64(uint64_t value)
{
int i, result = 0;
for (i = 0; i < sizeof(value) * 8; i++)
if (value & (1ULL << i))
result++;
return result;
}
static int __inline__
find_first_set_bit64(uint64_t value)
{
int i;
for (i = 0; i < sizeof(value) * 8; i++)
if (value & (1ULL << i))
return i;
return -1;
}
static int __inline__
find_next_set_bit64(uint64_t value, int pos)
{
int i;
for (i = pos + 1; i < sizeof(value) * 8; i++)
if (value & (1ULL << i))
return i;
return -1;
}
/** --- **/
static int __inline__
get_set_bit_count(uint32_t value)
{
int i, result = 0;
for (i = 0; i < sizeof(value) * 8; i++)
if (value & (1U << i))
result++;
return result;
}
static int __inline__
find_first_set_bit(uint32_t value)
{
int i;
for (i = 0; i < sizeof(value) * 8; i++)
if (value & (1U << i))
return i;
return -1;
}
static int __inline__
find_next_set_bit(uint32_t value, int pos)
{
int i;
for (i = pos + 1; i < sizeof(value) * 8; i++)
if (value & (1U << i))
return i;
return -1;
}
#ifdef DEBUG
void abort();
#define DPUTC(c) (putchar(c) && fflush(stdout))
#define DPRINT(fmt, ...) printf(fmt "\n", __VA_ARGS__)
#define ASSERT(x) ((x) || ({ printf("%s failed at (%s:%d)", #x, __FILE__, __LINE__) ; abort(); 0; }) )
#else
#define DPUTC(c)
#define DPRINT(fmt, ...)
#define ASSERT(x)
#endif
void xlr_send_sample(uint32_t tag, uint32_t value, uint32_t ts, uint32_t td);
#endif