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authorAnthony Gutierrez <atgutier@umich.edu>2014-04-01 12:44:30 -0400
committerAnthony Gutierrez <atgutier@umich.edu>2014-04-01 12:44:30 -0400
commite553a7bfa7f0eb47b78632cd63e6e1e814025c9a (patch)
treef69a8e3e0ed55b95bf276b6f857793b9ef7b6490 /ext/mcpat/cacti/crossbar.h
parent8d665ee166bf5476bb9b73a0016843ff9953c266 (diff)
downloadgem5-e553a7bfa7f0eb47b78632cd63e6e1e814025c9a.tar.xz
ext: add McPAT source
this patch adds the source for mcpat, a power, area, and timing modeling framework.
Diffstat (limited to 'ext/mcpat/cacti/crossbar.h')
-rw-r--r--ext/mcpat/cacti/crossbar.h85
1 files changed, 85 insertions, 0 deletions
diff --git a/ext/mcpat/cacti/crossbar.h b/ext/mcpat/cacti/crossbar.h
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+++ b/ext/mcpat/cacti/crossbar.h
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+/*****************************************************************************
+ * McPAT/CACTI
+ * SOFTWARE LICENSE AGREEMENT
+ * Copyright 2012 Hewlett-Packard Development Company, L.P.
+ * 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.”
+ *
+ ***************************************************************************/
+
+
+#ifndef __CROSSBAR__
+#define __CROSSBAR__
+
+#include <assert.h>
+
+#include <iostream>
+
+#include "basic_circuit.h"
+#include "cacti_interface.h"
+#include "component.h"
+#include "mat.h"
+#include "parameter.h"
+#include "wire.h"
+
+class Crossbar : public Component
+{
+ public:
+ Crossbar(
+ double in,
+ double out,
+ double flit_sz,
+ TechnologyParameter::DeviceType *dt = &(g_tp.peri_global));
+ ~Crossbar();
+
+ void print_crossbar();
+ double output_buffer();
+ void compute_power();
+
+ double n_inp, n_out;
+ double flit_size;
+ double tri_inp_cap, tri_out_cap, tri_ctr_cap, tri_int_cap;
+
+ private:
+ double CB_ADJ;
+ /*
+ * Adjust factor of the height of the cross-point (tri-state buffer) cell (layout) in crossbar
+ * buffer is adjusted to get an aspect ratio of whole cross bar close to one;
+ * when adjust the ratio, the number of wires route over the tri-state buffers does not change,
+ * however, the effective wiring pitch changes. Specifically, since CB_ADJ will increase
+ * during the adjust, the tri-state buffer will become taller and thiner, and the effective wiring pitch
+ * will increase. As a result, the height of the crossbar (area.h) will increase.
+ */
+
+ TechnologyParameter::DeviceType *deviceType;
+ double TriS1, TriS2;
+ double min_w_pmos, Vdd;
+
+};
+
+
+
+
+#endif