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/* $Id: op_ioctl.h,v 1.3 2000/12/06 20:39:47 moz Exp $ */
/* COPYRIGHT (C) 2000 THE VICTORIA UNIVERSITY OF MANCHESTER and John Levon
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* 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 for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc., 59 Temple
* Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef OP_IOCTL_H
#define OP_IOCTL_H
/* FIXME: I knew this was too gross. If we ever support Pentium 4,
* we will have to use struct-passing, as we have 18 counters amongst
* other things.
*/
enum {
/* wake up for reading all the entries in the
* eviction buffer
*/
OPROF_DUMP=1,
/* start profiling
*/
OPROF_START,
/* stop profiling
*/
OPROF_STOP,
/* The following ioctls set up profiling. They cannot be
* used when profiling is in progress (do OPROF_STOP first),
* otherwise a return value of EBUSY will occur.
*/
/* OPROF_SET_HASH_SIZE
* arg: size of hash table in entries (each 32 bytes wide)
* EFAULT: the memory could not be allocated
*/
OPROF_SET_HASH_SIZE,
/* OPROF_SET_BUF_SIZE
* arg: size of eviction buffer in samples (each 8 bytes wide)
* EFAULT: the memory could not be allocated
*/
OPROF_SET_BUF_SIZE,
/* OPROF_SET_PID_FILTER
* arg: the pid to filter for. Any information for other processes is
* ignored.
* EINVAL: The feature was not compiled in
*/
OPROF_SET_PID_FILTER,
/* OPROF_SET_PGRP_FILTER
* arg: the pgrp to filter for. Any information for other processes is
* ignored.
* EINVAL: The feature was not compiled in
*/
OPROF_SET_PGRP_FILTER,
/* OPROF_SET_CTR0
* arg: logical CPU number to enable counter 0
* for. If the top bit is 1, the counter is enabled, otherwise
* it is disabled.
* EINVAL: the CPU number was out of range
*/
OPROF_SET_CTR0,
/* OPROF_SET_CTR1
* arg: logical CPU number to enable counter 0
* for. If the top bit is 1, the counter is enabled, otherwise
* it is disabled.
* EINVAL: the CPU number was out of range
*/
OPROF_SET_CTR1,
/* OPROF_SET_CTR0_VAL
* arg: the numeric event value to set counter 0 to count. The top two
* bytes identify the logical CPU number to set the counter for.
* EINVAL: the CPU number was out of range.
*/
OPROF_SET_CTR0_VAL,
/* OPROF_SET_CTR1_VAL
* arg: the numeric event value to set counter 1 to count. The top two
* bytes identify the logical CPU number to set the counter for.
* EINVAL: the CPU number was out of range.
*/
OPROF_SET_CTR1_VAL,
/* OPROF_SET_CTR0_UM
* arg: the numeric unit mask to set counter 0 to count. The top two
* bytes identify the logical CPU number to set the counter for.
* EINVAL: the CPU number was out of range.
*/
OPROF_SET_CTR0_UM,
/* OPROF_SET_CTR1_UM
* arg: the numeric unit mask to set counter 1 to count. The top two
* bytes identify the logical CPU number to set the counter for.
* EINVAL: the CPU number was out of range.
*/
OPROF_SET_CTR1_UM,
/* OPROF_SET_CTR0_COUNT
* arg: the counter value to reset to each time for counter 0. The top two
* bytes identify the logical CPU number to set the counter for.
* EINVAL: the CPU number was out of range.
*/
OPROF_SET_CTR0_COUNT,
/* OPROF_SET_CTR1_COUNT
* arg: the counter value to reset to each time for counter 1. The top two
* bytes identify the logical CPU number to set the counter for.
* EINVAL: the CPU number was out of range.
*/
OPROF_SET_CTR1_COUNT,
/* OPROF_SET_CTR0_OS_USR:
* arg: set when to profile. 2 means user-space only, 1 means kernel only,
* 0 means both. The top two bytes identify the logical CPU number to
* set the counter for.
* EINVAL: arg not 0, 1, or 2, or the CPU number was out of range.
*/
OPROF_SET_CTR0_OS_USR,
/* OPROF_SET_CTR1_OS_USR:
* arg: set when to profile. 2 means user-space only, 1 means kernel only,
* 0 means both. The top two bytes identify the logical CPU number to
* set the counter for.
* EINVAL: arg not 0, 1, or 2, or the CPU number was out of range.
*/
OPROF_SET_CTR1_OS_USR,
};
#endif /* OP_IOCTL_H */