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-rw-r--r--ext/mcpat/cacti/arbiter.cc119
1 files changed, 66 insertions, 53 deletions
diff --git a/ext/mcpat/cacti/arbiter.cc b/ext/mcpat/cacti/arbiter.cc
index 6664abf13..8106d2025 100644
--- a/ext/mcpat/cacti/arbiter.cc
+++ b/ext/mcpat/cacti/arbiter.cc
@@ -2,6 +2,7 @@
* McPAT/CACTI
* SOFTWARE LICENSE AGREEMENT
* Copyright 2012 Hewlett-Packard Development Company, L.P.
+ * Copyright (c) 2010-2013 Advanced Micro Devices, Inc.
* All Rights Reserved
*
* Redistribution and use in source and binary forms, with or without
@@ -25,7 +26,7 @@
* 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.”
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
***************************************************************************/
@@ -36,95 +37,107 @@ Arbiter::Arbiter(
double flit_size_,
double output_len,
TechnologyParameter::DeviceType *dt
- ):R(n_req), flit_size(flit_size_),
- o_len (output_len), deviceType(dt)
-{
- min_w_pmos = deviceType->n_to_p_eff_curr_drv_ratio*g_tp.min_w_nmos_;
- Vdd = dt->Vdd;
- double technology = g_ip->F_sz_um;
- NTn1 = 13.5*technology/2;
- PTn1 = 76*technology/2;
- NTn2 = 13.5*technology/2;
- PTn2 = 76*technology/2;
- NTi = 12.5*technology/2;
- PTi = 25*technology/2;
- NTtr = 10*technology/2; /*Transmission gate's nmos tr. length*/
- PTtr = 20*technology/2; /* pmos tr. length*/
+ ): R(n_req), flit_size(flit_size_),
+ o_len (output_len), deviceType(dt) {
+ min_w_pmos = deviceType->n_to_p_eff_curr_drv_ratio * g_tp.min_w_nmos_;
+ Vdd = dt->Vdd;
+ double technology = g_ip->F_sz_um;
+ NTn1 = 13.5 * technology / 2;
+ PTn1 = 76 * technology / 2;
+ NTn2 = 13.5 * technology / 2;
+ PTn2 = 76 * technology / 2;
+ NTi = 12.5 * technology / 2;
+ PTi = 25 * technology / 2;
+ NTtr = 10 * technology / 2; /*Transmission gate's nmos tr. length*/
+ PTtr = 20 * technology / 2; /* pmos tr. length*/
}
-Arbiter::~Arbiter(){}
+Arbiter::~Arbiter() {}
double
Arbiter::arb_req() {
- double temp = ((R-1)*(2*gate_C(NTn1, 0)+gate_C(PTn1, 0)) + 2*gate_C(NTn2, 0) +
- gate_C(PTn2, 0) + gate_C(NTi, 0) + gate_C(PTi, 0) +
- drain_C_(NTi, 0, 1, 1, g_tp.cell_h_def) + drain_C_(PTi, 1, 1, 1, g_tp.cell_h_def));
- return temp;
+ double temp = ((R - 1) * (2 * gate_C(NTn1, 0) + gate_C(PTn1, 0)) + 2 *
+ gate_C(NTn2, 0) +
+ gate_C(PTn2, 0) + gate_C(NTi, 0) + gate_C(PTi, 0) +
+ drain_C_(NTi, 0, 1, 1, g_tp.cell_h_def) +
+ drain_C_(PTi, 1, 1, 1, g_tp.cell_h_def));
+ return temp;
}
double
Arbiter::arb_pri() {
- double temp = 2*(2*gate_C(NTn1, 0)+gate_C(PTn1, 0)); /* switching capacitance
- of flip-flop is ignored */
- return temp;
+ /* switching capacitance of flip-flop is ignored */
+ double temp = 2 * (2 * gate_C(NTn1, 0) + gate_C(PTn1, 0));
+ return temp;
}
double
Arbiter::arb_grant() {
- double temp = drain_C_(NTn1, 0, 1, 1, g_tp.cell_h_def)*2 + drain_C_(PTn1, 1, 1, 1, g_tp.cell_h_def) + crossbar_ctrline();
- return temp;
+ double temp = drain_C_(NTn1, 0, 1, 1, g_tp.cell_h_def) * 2 +
+ drain_C_(PTn1, 1, 1, 1, g_tp.cell_h_def) + crossbar_ctrline();
+ return temp;
}
double
Arbiter::arb_int() {
- double temp = (drain_C_(NTn1, 0, 1, 1, g_tp.cell_h_def)*2 + drain_C_(PTn1, 1, 1, 1, g_tp.cell_h_def) +
- 2*gate_C(NTn2, 0) + gate_C(PTn2, 0));
- return temp;
+ double temp = (drain_C_(NTn1, 0, 1, 1, g_tp.cell_h_def) * 2 +
+ drain_C_(PTn1, 1, 1, 1, g_tp.cell_h_def) +
+ 2 * gate_C(NTn2, 0) + gate_C(PTn2, 0));
+ return temp;
}
void
Arbiter::compute_power() {
- power.readOp.dynamic = (R*arb_req()*Vdd*Vdd/2 + R*arb_pri()*Vdd*Vdd/2 +
- arb_grant()*Vdd*Vdd + arb_int()*0.5*Vdd*Vdd);
- double nor1_leak = cmos_Isub_leakage(g_tp.min_w_nmos_*NTn1*2, min_w_pmos * PTn1*2, 2, nor);
- double nor2_leak = cmos_Isub_leakage(g_tp.min_w_nmos_*NTn2*R, min_w_pmos * PTn2*R, 2, nor);
- double not_leak = cmos_Isub_leakage(g_tp.min_w_nmos_*NTi, min_w_pmos * PTi, 1, inv);
- double nor1_leak_gate = cmos_Ig_leakage(g_tp.min_w_nmos_*NTn1*2, min_w_pmos * PTn1*2, 2, nor);
- double nor2_leak_gate = cmos_Ig_leakage(g_tp.min_w_nmos_*NTn2*R, min_w_pmos * PTn2*R, 2, nor);
- double not_leak_gate = cmos_Ig_leakage(g_tp.min_w_nmos_*NTi, min_w_pmos * PTi, 1, inv);
- power.readOp.leakage = (nor1_leak + nor2_leak + not_leak)*Vdd; //FIXME include priority table leakage
- power.readOp.gate_leakage = nor1_leak_gate*Vdd + nor2_leak_gate*Vdd + not_leak_gate*Vdd;
+ power.readOp.dynamic = (R * arb_req() * Vdd * Vdd / 2 + R * arb_pri() *
+ Vdd * Vdd / 2 +
+ arb_grant() * Vdd * Vdd + arb_int() * 0.5 * Vdd *
+ Vdd);
+ double nor1_leak = cmos_Isub_leakage(g_tp.min_w_nmos_ * NTn1 * 2,
+ min_w_pmos * PTn1 * 2, 2, nor);
+ double nor2_leak = cmos_Isub_leakage(g_tp.min_w_nmos_ * NTn2 * R,
+ min_w_pmos * PTn2 * R, 2, nor);
+ double not_leak = cmos_Isub_leakage(g_tp.min_w_nmos_ * NTi,
+ min_w_pmos * PTi, 1, inv);
+ double nor1_leak_gate = cmos_Ig_leakage(g_tp.min_w_nmos_ * NTn1 * 2,
+ min_w_pmos * PTn1 * 2, 2, nor);
+ double nor2_leak_gate = cmos_Ig_leakage(g_tp.min_w_nmos_ * NTn2 * R,
+ min_w_pmos * PTn2 * R, 2, nor);
+ double not_leak_gate = cmos_Ig_leakage(g_tp.min_w_nmos_ * NTi,
+ min_w_pmos * PTi, 1, inv);
+ //FIXME include priority table leakage
+ power.readOp.leakage = (nor1_leak + nor2_leak + not_leak) * Vdd;
+ power.readOp.gate_leakage = nor1_leak_gate * Vdd + nor2_leak_gate * Vdd +
+ not_leak_gate * Vdd;
}
double //wire cap with triple spacing
Arbiter::Cw3(double length) {
- Wire wc(g_ip->wt, length, 1, 3, 3);
- double temp = (wc.wire_cap(length,true));
- return temp;
+ Wire wc(g_ip->wt, length, 1, 3, 3);
+ double temp = (wc.wire_cap(length, true));
+ return temp;
}
double
Arbiter::crossbar_ctrline() {
- double temp = (Cw3(o_len * 1e-6 /* m */) +
- drain_C_(NTi, 0, 1, 1, g_tp.cell_h_def) + drain_C_(PTi, 1, 1, 1, g_tp.cell_h_def) +
- gate_C(NTi, 0) + gate_C(PTi, 0));
- return temp;
+ double temp = (Cw3(o_len * 1e-6 /* m */) +
+ drain_C_(NTi, 0, 1, 1, g_tp.cell_h_def) + drain_C_(PTi, 1, 1, 1, g_tp.cell_h_def) +
+ gate_C(NTi, 0) + gate_C(PTi, 0));
+ return temp;
}
double
Arbiter::transmission_buf_ctrcap() {
- double temp = gate_C(NTtr, 0)+gate_C(PTtr, 0);
- return temp;
+ double temp = gate_C(NTtr, 0) + gate_C(PTtr, 0);
+ return temp;
}
-void Arbiter::print_arbiter()
-{
- cout << "\nArbiter Stats (" << R << " input arbiter" << ")\n\n";
- cout << "Flit size : " << flit_size << " bits" << endl;
- cout << "Dynamic Power : " << power.readOp.dynamic*1e9 << " (nJ)" << endl;
- cout << "Leakage Power : " << power.readOp.leakage*1e3 << " (mW)" << endl;
+void Arbiter::print_arbiter() {
+ cout << "\nArbiter Stats (" << R << " input arbiter" << ")\n\n";
+ cout << "Flit size : " << flit_size << " bits" << endl;
+ cout << "Dynamic Power : " << power.readOp.dynamic*1e9 << " (nJ)" << endl;
+ cout << "Leakage Power : " << power.readOp.leakage*1e3 << " (mW)" << endl;
}
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