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/*
* Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* 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;
* neither the name of the copyright holders 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 COPYRIGHT HOLDERS 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 COPYRIGHT
* OWNER 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.
*/
// Arbiter
#ifndef _POWER_ARBITER_H
#define _POWER_ARBITER_H
#include "power_array.hh"
typedef enum {
RR_ARBITER =1,
MATRIX_ARBITER,
QUEUE_ARBITER,
ARBITER_MAX_MODEL
} power_arbiter_model;
typedef enum {
NEG_DFF = 1, /* negative egde-triggered D flip-flop */
FF_MAX_MODEL
} power_ff_model;
typedef struct {
int model;
unsigned long int n_switch;
unsigned long int n_keep_1;
unsigned long int n_keep_0;
unsigned long int n_clock;
double e_switch;
double e_keep_1;
double e_keep_0;
double e_clock;
double i_leakage;
} power_ff;
typedef struct{
int model;
unsigned req_width;
unsigned long int n_chg_req;
unsigned long int n_chg_grant;
unsigned long int n_chg_carry; //internal node of rr arbiter
unsigned long int n_chg_carry_in; //internal node of rr arbiter
unsigned long int n_chg_mint; //internal node of matrix arbiter
unsigned long int mask;
double e_chg_req;
double e_chg_grant;
double e_chg_carry;
double e_chg_carry_in;
double e_chg_mint;
power_ff pri_ff; //priority ff
power_array queue; //request queue
double i_leakage;
} power_arbiter;
extern int arbiter_record(power_arbiter *arb, unsigned long int new_req, unsigned long int old_req, unsigned new_grant, unsigned old_grant);
extern double arbiter_report(power_arbiter *arb);
extern int power_arbiter_init(power_arbiter *arb, int arbiter_model, int ff_model, unsigned req_width, double length, power_array_info *info);
#endif
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