/////////////////////////////////////////////////////////////////////////
// File: top.cpp 
// Author: Alain Greiner 
// Copyright: UPMC/LIP6
// Date : may 2013
// This program is released under the GNU public license
/////////////////////////////////////////////////////////////////////////
// This file define a generic TSAR architecture.
// The processor is a MIPS32 processor wrapped in a GDB server
// (this is defined in the tsar_xbar_cluster).
// 
// The seg_reset_base and seg_kcode_base addresses are not constrained
// to be 0xBFC00000 and 0x80000000.
//
// It does not use an external ROM, as the boot code is stored
// in cluster (0,0) memory.
//
// The physical address space is 40 bits.
// The 8 address MSB bits define the cluster index.
//
// The number of clusters cannot be larger than 256.
// The number of processors per cluster cannot be larger than 4.
// 
// - It uses four dspin_local_crossbar per cluster as local interconnect 
// - It uses two virtual_dspin routers per cluster as global interconnect
// - It uses the vci_cc_vcache_wrapper 
// - It uses the vci_mem_cache
// - It contains one vci_xicu per cluster.
// - It contains one vci_multi_dma per cluster.
// - It contains one vci_simple_ram per cluster to model the L3 cache.
//
// The communication between the MemCache and the Xram is 64 bits.
//
// All clusters are identical, but the cluster 0 (called io_cluster), 
// contains 6 extra components:
// - the disk controller (BDEV)
// - the multi-channel network controller (MNIC)
// - the multi-channel chained buffer dma controller (CDMA)
// - the multi-channel tty controller (MTTY)
// - the frame buffer controller (FBUF)
//
// It is build with one single component implementing a cluster,
// defined in files tsar_leti_cluster.* (with * = cpp, h, sd)
//
// The IRQs are connected to XICUs as follow:
// - The BDEV IRQ is connected to IRQ_IN[0] in I/O cluster.
// - The IRQ_IN[1] to IRQ_IN[7] ports are not used in all clusters.
// - The DMA IRQs are connected to IRQ_IN[8:11] in all clusters.
// - The MEMC IRQ is connected to IRQ_IN[12] in all clusters.
// - The TTY IRQs are connected to IRQ_IN[16:31] in I/O cluster.
// 
// Some hardware parameters are used when compiling the OS, and are used 
// by this top.cpp file. They must be defined in the hard_config.h file :
// - X_WIDTH          : number of bits for x coordinate (must be 4)
// - Y_WIDTH          : number of bits for y coordinate (must be 4)
// - X_SIZE           : number of clusters in a row 
// - Y_SIZE           : number of clusters in a column 
// - NB_PROCS_MAX     : number of processors per cluster (power of 2)
// - NB_DMA_CHANNELS  : number of DMA channels per cluster (< 9)
// - NB_TTY_CHANNELS  : number of TTY channels in I/O cluster (< 17)
// - NB_NIC_CHANNELS  : number of NIC channels in I/O cluster (< 9)
// 
// Some other hardware parameters are not used when compiling the OS,
// and can be directly defined in this top.cpp file:
// - XRAM_LATENCY     : external ram latency 
// - MEMC_WAYS        : L2 cache number of ways
// - MEMC_SETS        : L2 cache number of sets
// - L1_IWAYS     
// - L1_ISETS    
// - L1_DWAYS   
// - L1_DSETS  
// - FBUF_X_SIZE      : width of frame buffer (pixels)
// - FBUF_Y_SIZE      : heigth of frame buffer (lines)
// - BDEV_SECTOR_SIZE : block size for block drvice
// - BDEV_IMAGE_NAME  : file pathname for block device 
// - NIC_RX_NAME      : file pathname for NIC received packets
// - NIC_TX_NAME      : file pathname for NIC transmited packets
// - NIC_TIMEOUT      : max number of cycles before closing a container
/////////////////////////////////////////////////////////////////////////
// General policy for 40 bits physical address decoding:
// All physical segments base addresses are multiple of 1 Mbytes
// (=> the 24 LSB bits = 0, and the 16 MSB bits define the target) 
// The (X_WIDTH + Y_WIDTH) MSB bits (left aligned) define
// the cluster index, and the LADR bits define the local index:
//      |X_ID|Y_ID|  LADR |     OFFSET          |
//      |  4 |  4 |   8   |       24            |
/////////////////////////////////////////////////////////////////////////
// General policy for 14 bits SRCID decoding:
// Each component is identified by (x_id, y_id, l_id) tuple.
//      |X_ID|Y_ID| L_ID |
//      |  4 |  4 |  6   |
/////////////////////////////////////////////////////////////////////////

#include <systemc>
#include <sys/time.h>
#include <iostream>
#include <sstream>
#include <cstdlib>
#include <cstdarg>
#include <stdint.h>

#include "gdbserver.h"
#include "mapping_table.h"
#include "tsar_leti_cluster.h"
#include "alloc_elems.h"

///////////////////////////////////////////////////
//      OS
///////////////////////////////////////////////////

#define USE_GIET_VM     0
#define USE_GIET_TSAR   1

#if ( USE_GIET_VM and USE_GIET_TSAR )
#error "Can't use Two different OS"
#endif

#if ( (not USE_GIET_VM) and (not USE_GIET_TSAR) )
#error "You need to specify one OS"
#endif

///////////////////////////////////////////////////
//               Parallelisation
///////////////////////////////////////////////////
#define USE_OPENMP 0

#if USE_OPENMP
#include <omp.h>
#endif

///////////////////////////////////////////////////
//  cluster index (from x,y coordinates)
///////////////////////////////////////////////////

#define cluster(x,y)   (y + (x << Y_WIDTH))

#define min(a, b) (a < b ? a : b)

///////////////////////////////////////////////////////////
//          DSPIN parameters           
///////////////////////////////////////////////////////////

#define dspin_cmd_width      39
#define dspin_rsp_width      32

///////////////////////////////////////////////////////////
//          VCI parameters           
///////////////////////////////////////////////////////////

#define vci_cell_width_int    4
#define vci_cell_width_ext    8

#if USE_ALMOS
#define vci_address_width     32
#endif

#if (USE_GIET_VM or USE_GIET_TSAR)
#define vci_address_width     40
#endif

#define vci_plen_width        8
#define vci_rerror_width      1
#define vci_clen_width        1
#define vci_rflag_width       1
#define vci_srcid_width       14
#define vci_pktid_width       4
#define vci_trdid_width       4
#define vci_wrplen_width      1

////////////////////////////////////////////////////////////
//    Main Hardware Parameters values         
//////////////////////i/////////////////////////////////////

#if USE_GIET_VM
#include "giet_vm/hard_config.h"
#endif

#if USE_GIET_TSAR
#include "../../softs/soft_hello_giet/hard_config.h"
#endif


////////////////////////////////////////////////////////////
//    Secondary Hardware Parameters         
//////////////////////i/////////////////////////////////////

#define RESET_ADDRESS         0x0

#define XRAM_LATENCY          0

#define MEMC_WAYS             16
#define MEMC_SETS             256

#define L1_IWAYS              4
#define L1_ISETS              64

#define L1_DWAYS              4
#define L1_DSETS              64

#define FBUF_X_SIZE           128
#define FBUF_Y_SIZE           128

#define BDEV_SECTOR_SIZE      512
#define BDEV_IMAGE_NAME       "../../softs/soft_hello_giet/fake"

#define NIC_TIMEOUT           10000
#define NIC_RX_NAME           "../../softs/soft_hello_giet/fake"
#define NIC_TX_NAME           "../../softs/soft_hello_giet/fake"

#define NORTH                 0
#define SOUTH                 1
#define EAST                  2
#define WEST                  3

////////////////////////////////////////////////////////////
//    Arguments for the SoCLib loader         
//////////////////////i/////////////////////////////////////

#if USE_GIET_VM
#define loader_args          "TBD"
#endif

#if USE_GIET_TSAR
#define loader_args          "../../softs/soft_hello_giet/bin.soft"
#endif

////////////////////////////////////////////////////////////
//     DEBUG Parameters default values         
//////////////////////i/////////////////////////////////////

#define MAX_FROZEN_CYCLES     1000000

////////////////////////////////////////////////////////////////////
//     TGTID definition in direct space
// For all components:  global TGTID = global SRCID = cluster_index
////////////////////////////////////////////////////////////////////

#define MEMC_TGTID      0
#define XICU_TGTID      1
#define MDMA_TGTID      2
#define MTTY_TGTID      3
#define FBUF_TGTID      4
#define BDEV_TGTID      5
#define MNIC_TGTID      6
#define CDMA_TGTID      7
#define SIMH_TGTID      8

///////////////////////////////////////////////////////////////
//    Physical segments definition
///////////////////////////////////////////////////////////////
// There is 4 segments replicated in all clusters,
// and 5 specific segments in cluster 0 (IO cluster) 
// The following values are for segments in cluster 0.
// These 32 bits values must be concatenate with the cluster 
// index (on 8 bits) to obtain the 40 bits address.
///////////////////////////////////////////////////////////////

   // non replicated segments / only in cluster(0,0)

   #define FBUF_BASE    0xF3000000
   #define FBUF_SIZE    (FBUF_X_SIZE * FBUF_Y_SIZE * 2)

   #define BDEV_BASE    0xF4000000
   #define BDEV_SIZE    0x00001000   // 4 Kbytes

   #define MTTY_BASE    0xF2000000
   #define MTTY_SIZE    0x00001000   // 4 Kbytes

   #define MNIC_BASE    0xF5000000
   #define MNIC_SIZE    0x00800000   // 512 Kbytes (for 8 channels)

   #define CDMA_BASE    0xF6000000
   #define CDMA_SIZE    0x00004000 * NB_CMA_CHANNELS

   // replicated segments : address is extended to 40 bits by cluster_xy

   #define MEMC_BASE    0x00000000
   #define MEMC_SIZE    0x01000000   // 16 Mbytes per cluster

   #define XICU_BASE    0xF0000000
   #define XICU_SIZE    0x00001000   // 4 Kbytes

   #define MDMA_BASE    0xF1000000
   #define MDMA_SIZE    0x00001000 * NB_DMA_CHANNELS  // 4 Kbytes per channel

   #define SIMH_BASE    0xFF000000
   #define SIMH_SIZE    0x00001000   // 4 Kbytes

bool stop_called = false;

/////////////////////////////////
int _main(int argc, char *argv[])
{
   using namespace sc_core;
   using namespace soclib::caba;
   using namespace soclib::common;

   uint64_t ncycles          = 0xFFFFFFFFFFFFFFFF; // simulated cycles
   char     disk_name[256]   = BDEV_IMAGE_NAME;    // pathname to the disk image
   char     nic_rx_name[256] = NIC_RX_NAME;        // pathname to the rx packets file
   char     nic_tx_name[256] = NIC_TX_NAME;        // pathname to the tx packets file
   size_t   threads_nr       = 1;                  // simulator's threads number
   bool     trace_ok         = false;              // trace activated
   uint32_t trace_from       = 0;                  // trace start cycle
   bool     trace_proc_ok    = false;              // detailed proc trace activated
   size_t   trace_memc_ok    = false;              // detailed memc trace activated
   size_t   trace_memc_id    = 0;                  // index of memc to be traced 
   size_t   trace_proc_id    = 0;                  // index of proc to be traced
   uint32_t frozen_cycles    = MAX_FROZEN_CYCLES;  // monitoring frozen processor
   struct   timeval t1,t2;
   uint64_t ms1,ms2;

   ////////////// command line arguments //////////////////////
   if (argc > 1)
   {
      for (int n = 1; n < argc; n = n + 2)
      {
         if ((strcmp(argv[n], "-NCYCLES") == 0) && (n + 1 < argc))
         {
            ncycles = (uint64_t) strtol(argv[n + 1], NULL, 0);
         }
         else if ((strcmp(argv[n],"-DISK") == 0) && (n + 1 < argc))
         {
            strcpy(disk_name, argv[n + 1]);
         }
         else if ((strcmp(argv[n],"-DEBUG") == 0) && (n + 1 < argc))
         {
            trace_ok = true;
            trace_from = (uint32_t) strtol(argv[n + 1], NULL, 0);
         }
         else if ((strcmp(argv[n], "-MEMCID") == 0) && (n + 1 < argc))
         {
            trace_memc_ok = true;
            trace_memc_id = (size_t) strtol(argv[n + 1], NULL, 0);
            size_t x = trace_memc_id >> Y_WIDTH;
            size_t y = trace_memc_id & ((1<<Y_WIDTH)-1);

            assert( (x <= X_SIZE) and (y <= Y_SIZE) &&
                  "MEMCID parameter refers a not valid memory cache");
         }
         else if ((strcmp(argv[n], "-PROCID") == 0) && (n + 1 < argc))
         {
            trace_proc_ok = true;
            trace_proc_id = (size_t) strtol(argv[n + 1], NULL, 0);
            size_t cluster_xy = trace_proc_id / NB_PROCS_MAX ;
            size_t x          = cluster_xy >> Y_WIDTH;
            size_t y          = cluster_xy & ((1<<Y_WIDTH)-1);

            assert( (x <= X_SIZE) and (y <= Y_SIZE) &&
                  "PROCID parameter refers a not valid processor");
         }
         else if ((strcmp(argv[n], "-THREADS") == 0) && ((n + 1) < argc))
         {
            threads_nr = (ssize_t) strtol(argv[n + 1], NULL, 0);
            threads_nr = (threads_nr < 1) ? 1 : threads_nr;
         }
         else if ((strcmp(argv[n], "-FROZEN") == 0) && (n + 1 < argc))
         {
            frozen_cycles = (uint32_t) strtol(argv[n + 1], NULL, 0);
         }
         else
         {
            std::cout << "   Arguments are (key,value) couples." << std::endl;
            std::cout << "   The order is not important." << std::endl;
            std::cout << "   Accepted arguments are :" << std::endl << std::endl;
            std::cout << "     -DISK pathname_for_disk_image" << std::endl;
            std::cout << "     -NCYCLES number_of_simulated_cycles" << std::endl;
            std::cout << "     -DEBUG debug_start_cycle" << std::endl;
            std::cout << "     -THREADS simulator's threads number" << std::endl;
            std::cout << "     -FROZEN max_number_of_lines" << std::endl;
            std::cout << "     -PERIOD number_of_cycles between trace" << std::endl;
            std::cout << "     -MEMCID index_memc_to_be_traced" << std::endl;
            std::cout << "     -PROCID index_proc_to_be_traced" << std::endl;
            exit(0);
         }
      }
   }

    // checking hardware parameters
    assert( (X_SIZE <= 16) and
            "The X_SIZE parameter cannot be larger than 16" );

    assert( (Y_SIZE <= 16) and
            "The Y_SIZE parameter cannot be larger than 16" );

    assert( (NB_PROCS_MAX <= 8) and
            "The NB_PROCS_MAX parameter cannot be larger than 8" );

    assert( (NB_DMA_CHANNELS < 9) and
            "The NB_DMA_CHANNELS parameter cannot be larger than 8" );

    assert( (NB_TTY_CHANNELS <= 16) and
            "The NB_TTY_CHANNELS parameter cannot be larger than 16" );

    assert( (NB_NIC_CHANNELS < 9) and
            "The NB_NIC_CHANNELS parameter cannot be larger than 8" );

    assert( (vci_address_width == 40) and
            "VCI address width with the GIET must be 40 bits" );

    assert( (X_WIDTH == 4) and (Y_WIDTH == 4) and
            "ERROR: you must have X_WIDTH == Y_WIDTH == 4");
 
    std::cout << std::endl;

    std::cout << " - X_SIZE           = " << X_SIZE << std::endl;
    std::cout << " - Y_SIZE           = " << Y_SIZE << std::endl;
    std::cout << " - NB_PROCS_MAX     = " << NB_PROCS_MAX <<  std::endl;
    std::cout << " - NB_DMA_CHANNELS  = " << NB_DMA_CHANNELS <<  std::endl;
    std::cout << " - NB_TTY_CHANNELS  = " << NB_TTY_CHANNELS <<  std::endl;
    std::cout << " - NB_NIC_CHANNELS  = " << NB_NIC_CHANNELS <<  std::endl;
    std::cout << " - MEMC_WAYS        = " << MEMC_WAYS << std::endl;
    std::cout << " - MEMC_SETS        = " << MEMC_SETS << std::endl;
    std::cout << " - RAM_LATENCY      = " << XRAM_LATENCY << std::endl;
    std::cout << " - MAX_FROZEN       = " << frozen_cycles << std::endl;
    std::cout << " - MAX_CYCLES       = " << ncycles << std::endl;
    std::cout << " - RESET_ADDRESS    = " << RESET_ADDRESS << std::endl;

    std::cout << std::endl;

    // Internal and External VCI parameters definition
    typedef soclib::caba::VciParams<vci_cell_width_int,
                                    vci_plen_width,
                                    vci_address_width,
                                    vci_rerror_width,
                                    vci_clen_width,
                                    vci_rflag_width,
                                    vci_srcid_width,
                                    vci_pktid_width,
                                    vci_trdid_width,
                                    vci_wrplen_width> vci_param_int;

    typedef soclib::caba::VciParams<vci_cell_width_ext,
                                    vci_plen_width,
                                    vci_address_width,
                                    vci_rerror_width,
                                    vci_clen_width,
                                    vci_rflag_width,
                                    vci_srcid_width,
                                    vci_pktid_width,
                                    vci_trdid_width,
                                    vci_wrplen_width> vci_param_ext;

#if USE_OPENMP
   omp_set_dynamic(false);
   omp_set_num_threads(threads_nr);
   std::cerr << "Built with openmp version " << _OPENMP << std::endl;
#endif


   /////////////////////
   //  Mapping Tables
   /////////////////////

   // internal network
   MappingTable maptabd(vci_address_width, 
                        IntTab(X_WIDTH + Y_WIDTH, 16 - X_WIDTH - Y_WIDTH), 
                        IntTab(X_WIDTH + Y_WIDTH, vci_srcid_width - X_WIDTH - Y_WIDTH), 
                        0xFF800000);

   for (size_t x = 0; x < X_SIZE; x++)
   {
      for (size_t y = 0; y < Y_SIZE; y++)
      {
         sc_uint<vci_address_width> offset;
         offset = (sc_uint<vci_address_width>)cluster(x,y) 
                   << (vci_address_width-X_WIDTH-Y_WIDTH);

         std::ostringstream    si;
         si << "seg_xicu_" << x << "_" << y;
         maptabd.add(Segment(si.str(), XICU_BASE + offset, XICU_SIZE, 
                  IntTab(cluster(x,y),XICU_TGTID), false));

         std::ostringstream    sd;
         sd << "seg_mdma_" << x << "_" << y;
         maptabd.add(Segment(sd.str(), MDMA_BASE + offset, MDMA_SIZE, 
                  IntTab(cluster(x,y),MDMA_TGTID), false));

         std::ostringstream    sh;
         sh << "seg_memc_" << x << "_" << y;
         maptabd.add(Segment(sh.str(), MEMC_BASE + offset, MEMC_SIZE, 
                  IntTab(cluster(x,y),MEMC_TGTID), true));

         if ( cluster(x,y) == 0 )
         {
            maptabd.add(Segment("seg_mtty", MTTY_BASE, MTTY_SIZE, 
                        IntTab(cluster(x,y),MTTY_TGTID), false));
            maptabd.add(Segment("seg_fbuf", FBUF_BASE, FBUF_SIZE, 
                        IntTab(cluster(x,y),FBUF_TGTID), false));
            maptabd.add(Segment("seg_bdev", BDEV_BASE, BDEV_SIZE, 
                        IntTab(cluster(x,y),BDEV_TGTID), false));
            maptabd.add(Segment("seg_mnic", MNIC_BASE, MNIC_SIZE, 
                        IntTab(cluster(x,y),MNIC_TGTID), false));
            maptabd.add(Segment("seg_cdma", CDMA_BASE, CDMA_SIZE, 
                        IntTab(cluster(x,y),CDMA_TGTID), false));
            maptabd.add(Segment("seg_simh", SIMH_BASE, SIMH_SIZE, 
                        IntTab(cluster(x,y),SIMH_TGTID), false));
         }
      }
   }
   std::cout << maptabd << std::endl;

   // external network
   MappingTable maptabx(vci_address_width, 
                        IntTab(X_WIDTH+Y_WIDTH), 
                        IntTab(X_WIDTH+Y_WIDTH), 
                        0xFFFF000000ULL);

   for (size_t x = 0; x < X_SIZE; x++)
   {
      for (size_t y = 0; y < Y_SIZE ; y++)
      { 

         sc_uint<vci_address_width> offset;
         offset = (sc_uint<vci_address_width>)cluster(x,y) 
                   << (vci_address_width-X_WIDTH-Y_WIDTH);

         std::ostringstream sh;
         sh << "x_seg_memc_" << x << "_" << y;

         maptabx.add(Segment(sh.str(), MEMC_BASE + offset, 
                     MEMC_SIZE, IntTab(cluster(x,y)), false));
      }
   }
   std::cout << maptabx << std::endl;

   ////////////////////
   // Signals
   ///////////////////

   sc_clock           signal_clk("clk");
   sc_signal<bool>    signal_resetn("resetn");

   // Horizontal inter-clusters DSPIN signals
   DspinSignals<dspin_cmd_width>*** signal_dspin_h_cmd_inc =
      alloc_elems<DspinSignals<dspin_cmd_width> >("signal_dspin_h_cmd_inc", X_SIZE-1, Y_SIZE, 3);
   DspinSignals<dspin_cmd_width>*** signal_dspin_h_cmd_dec =
      alloc_elems<DspinSignals<dspin_cmd_width> >("signal_dspin_h_cmd_dec", X_SIZE-1, Y_SIZE, 3);
   DspinSignals<dspin_rsp_width>*** signal_dspin_h_rsp_inc =
      alloc_elems<DspinSignals<dspin_rsp_width> >("signal_dspin_h_rsp_inc", X_SIZE-1, Y_SIZE, 2);
   DspinSignals<dspin_rsp_width>*** signal_dspin_h_rsp_dec =
      alloc_elems<DspinSignals<dspin_rsp_width> >("signal_dspin_h_rsp_dec", X_SIZE-1, Y_SIZE, 2);

   // Vertical inter-clusters DSPIN signals
   DspinSignals<dspin_cmd_width>*** signal_dspin_v_cmd_inc =
      alloc_elems<DspinSignals<dspin_cmd_width> >("signal_dspin_v_cmd_inc", X_SIZE, Y_SIZE-1, 3);
   DspinSignals<dspin_cmd_width>*** signal_dspin_v_cmd_dec =
      alloc_elems<DspinSignals<dspin_cmd_width> >("signal_dspin_v_cmd_dec", X_SIZE, Y_SIZE-1, 3);
   DspinSignals<dspin_rsp_width>*** signal_dspin_v_rsp_inc =
      alloc_elems<DspinSignals<dspin_rsp_width> >("signal_dspin_v_rsp_inc", X_SIZE, Y_SIZE-1, 2);
   DspinSignals<dspin_rsp_width>*** signal_dspin_v_rsp_dec =
      alloc_elems<DspinSignals<dspin_rsp_width> >("signal_dspin_v_rsp_dec", X_SIZE, Y_SIZE-1, 2);

   // Mesh boundaries DSPIN signals
   DspinSignals<dspin_cmd_width>**** signal_dspin_false_cmd_in =
      alloc_elems<DspinSignals<dspin_cmd_width> >("signal_dspin_false_cmd_in" , X_SIZE, Y_SIZE, 4, 3);
   DspinSignals<dspin_cmd_width>**** signal_dspin_false_cmd_out =
      alloc_elems<DspinSignals<dspin_cmd_width> >("signal_dspin_false_cmd_out", X_SIZE, Y_SIZE, 4, 3);
   DspinSignals<dspin_rsp_width>**** signal_dspin_false_rsp_in =
      alloc_elems<DspinSignals<dspin_rsp_width> >("signal_dspin_false_rsp_in" , X_SIZE, Y_SIZE, 4, 2);
   DspinSignals<dspin_rsp_width>**** signal_dspin_false_rsp_out =
      alloc_elems<DspinSignals<dspin_rsp_width> >("signal_dspin_false_rsp_out", X_SIZE, Y_SIZE, 4, 2);


   ////////////////////////////
   //      Loader    
   ////////////////////////////

   soclib::common::Loader loader( loader_args );

   typedef soclib::common::GdbServer<soclib::common::Mips32ElIss> proc_iss;
   proc_iss::set_loader(loader);

   ////////////////////////////
   // Clusters construction
   ////////////////////////////

   TsarLetiCluster<dspin_cmd_width,
                   dspin_rsp_width,
                   vci_param_int,
                   vci_param_ext>*          clusters[X_SIZE][Y_SIZE];

#if USE_OPENMP
#pragma omp parallel
    {
#pragma omp for
#endif
        for (size_t i = 0; i  < (X_SIZE * Y_SIZE); i++)
        {
            size_t x = i / Y_SIZE;
            size_t y = i % Y_SIZE;

#if USE_OPENMP
#pragma omp critical
            {
#endif
            std::cout << std::endl;
            std::cout << "Cluster_" << x << "_" << y 
                      << " with cluster_xy = " << cluster(x,y) << std::endl;
            std::cout << std::endl;

            std::ostringstream sc;
            sc << "cluster_" << x << "_" << y;
            clusters[x][y] = new TsarLetiCluster<dspin_cmd_width,
                                                 dspin_rsp_width,
                                                 vci_param_int,
                                                 vci_param_ext>
            (
                sc.str().c_str(),
                NB_PROCS_MAX,
                NB_TTY_CHANNELS,  
                NB_DMA_CHANNELS, 
                x,
                y,
                cluster(x,y),
                maptabd,
                maptabx,
                RESET_ADDRESS,
                X_WIDTH,
                Y_WIDTH,
                vci_srcid_width - X_WIDTH - Y_WIDTH,   // l_id width,
                MEMC_TGTID,
                XICU_TGTID,
                MDMA_TGTID,
                FBUF_TGTID,
                MTTY_TGTID,
                MNIC_TGTID,
                CDMA_TGTID,
                BDEV_TGTID,
                SIMH_TGTID,
                MEMC_WAYS,
                MEMC_SETS,
                L1_IWAYS,
                L1_ISETS,
                L1_DWAYS,
                L1_DSETS,
                XRAM_LATENCY,
                (cluster(x,y) == 0),
                FBUF_X_SIZE,
                FBUF_Y_SIZE,
                disk_name,
                BDEV_SECTOR_SIZE,
                NB_NIC_CHANNELS,
                nic_rx_name,
                nic_tx_name,
                NIC_TIMEOUT,
                NB_CMA_CHANNELS,
                loader,
                frozen_cycles,
                trace_from,
                trace_proc_ok, 
                trace_proc_id,
                trace_memc_ok, 
                trace_memc_id
            );

#if USE_OPENMP
            } // end critical
#endif
        } // end for
#if USE_OPENMP
    }
#endif

   ///////////////////////////////////////////////////////////////
   //     Net-list 
   ///////////////////////////////////////////////////////////////

   // Clock & RESET
   for (size_t x = 0; x < (X_SIZE); x++){
      for (size_t y = 0; y < Y_SIZE; y++){
         clusters[x][y]->p_clk                         (signal_clk);
         clusters[x][y]->p_resetn                      (signal_resetn);
      }
   }

   // Inter Clusters horizontal connections
   if (X_SIZE > 1){
      for (size_t x = 0; x < (X_SIZE-1); x++){
         for (size_t y = 0; y < Y_SIZE; y++){
            for (size_t k = 0; k < 3; k++){
               clusters[x][y]->p_cmd_out[EAST][k]      (signal_dspin_h_cmd_inc[x][y][k]);
               clusters[x+1][y]->p_cmd_in[WEST][k]     (signal_dspin_h_cmd_inc[x][y][k]);
               clusters[x][y]->p_cmd_in[EAST][k]       (signal_dspin_h_cmd_dec[x][y][k]);
               clusters[x+1][y]->p_cmd_out[WEST][k]    (signal_dspin_h_cmd_dec[x][y][k]);
            }

            for (size_t k = 0; k < 2; k++){
               clusters[x][y]->p_rsp_out[EAST][k]      (signal_dspin_h_rsp_inc[x][y][k]);
               clusters[x+1][y]->p_rsp_in[WEST][k]     (signal_dspin_h_rsp_inc[x][y][k]);
               clusters[x][y]->p_rsp_in[EAST][k]       (signal_dspin_h_rsp_dec[x][y][k]);
               clusters[x+1][y]->p_rsp_out[WEST][k]    (signal_dspin_h_rsp_dec[x][y][k]);
            }
         }
      }
   }
   std::cout << std::endl << "Horizontal connections established" << std::endl;   

   // Inter Clusters vertical connections
   if (Y_SIZE > 1) {
      for (size_t y = 0; y < (Y_SIZE-1); y++){
         for (size_t x = 0; x < X_SIZE; x++){
            for (size_t k = 0; k < 3; k++){
               clusters[x][y]->p_cmd_out[NORTH][k]     (signal_dspin_v_cmd_inc[x][y][k]);
               clusters[x][y+1]->p_cmd_in[SOUTH][k]    (signal_dspin_v_cmd_inc[x][y][k]);
               clusters[x][y]->p_cmd_in[NORTH][k]      (signal_dspin_v_cmd_dec[x][y][k]);
               clusters[x][y+1]->p_cmd_out[SOUTH][k]   (signal_dspin_v_cmd_dec[x][y][k]);
            }

            for (size_t k = 0; k < 2; k++){
               clusters[x][y]->p_rsp_out[NORTH][k]     (signal_dspin_v_rsp_inc[x][y][k]);
               clusters[x][y+1]->p_rsp_in[SOUTH][k]    (signal_dspin_v_rsp_inc[x][y][k]);
               clusters[x][y]->p_rsp_in[NORTH][k]      (signal_dspin_v_rsp_dec[x][y][k]);
               clusters[x][y+1]->p_rsp_out[SOUTH][k]   (signal_dspin_v_rsp_dec[x][y][k]);
            }
         }
      }
   }
   std::cout << "Vertical connections established" << std::endl;

   // East & West boundary cluster connections
   for (size_t y = 0; y < Y_SIZE; y++)
   {
      for (size_t k = 0; k < 3; k++)
      {
         clusters[0][y]->p_cmd_in[WEST][k]        (signal_dspin_false_cmd_in[0][y][WEST][k]);
         clusters[0][y]->p_cmd_out[WEST][k]       (signal_dspin_false_cmd_out[0][y][WEST][k]);
         clusters[X_SIZE-1][y]->p_cmd_in[EAST][k]   (signal_dspin_false_cmd_in[X_SIZE-1][y][EAST][k]);
         clusters[X_SIZE-1][y]->p_cmd_out[EAST][k]  (signal_dspin_false_cmd_out[X_SIZE-1][y][EAST][k]);
      }

      for (size_t k = 0; k < 2; k++)
      {
         clusters[0][y]->p_rsp_in[WEST][k]        (signal_dspin_false_rsp_in[0][y][WEST][k]);
         clusters[0][y]->p_rsp_out[WEST][k]       (signal_dspin_false_rsp_out[0][y][WEST][k]);
         clusters[X_SIZE-1][y]->p_rsp_in[EAST][k]   (signal_dspin_false_rsp_in[X_SIZE-1][y][EAST][k]);
         clusters[X_SIZE-1][y]->p_rsp_out[EAST][k]  (signal_dspin_false_rsp_out[X_SIZE-1][y][EAST][k]);
      }
   }

   // North & South boundary clusters connections
   for (size_t x = 0; x < X_SIZE; x++)
   {
      for (size_t k = 0; k < 3; k++)
      {
         clusters[x][0]->p_cmd_in[SOUTH][k]       (signal_dspin_false_cmd_in[x][0][SOUTH][k]);
         clusters[x][0]->p_cmd_out[SOUTH][k]      (signal_dspin_false_cmd_out[x][0][SOUTH][k]);
         clusters[x][Y_SIZE-1]->p_cmd_in[NORTH][k]  (signal_dspin_false_cmd_in[x][Y_SIZE-1][NORTH][k]);
         clusters[x][Y_SIZE-1]->p_cmd_out[NORTH][k] (signal_dspin_false_cmd_out[x][Y_SIZE-1][NORTH][k]);
      }

      for (size_t k = 0; k < 2; k++)
      {
         clusters[x][0]->p_rsp_in[SOUTH][k]       (signal_dspin_false_rsp_in[x][0][SOUTH][k]);
         clusters[x][0]->p_rsp_out[SOUTH][k]      (signal_dspin_false_rsp_out[x][0][SOUTH][k]);
         clusters[x][Y_SIZE-1]->p_rsp_in[NORTH][k]  (signal_dspin_false_rsp_in[x][Y_SIZE-1][NORTH][k]);
         clusters[x][Y_SIZE-1]->p_rsp_out[NORTH][k] (signal_dspin_false_rsp_out[x][Y_SIZE-1][NORTH][k]);
      }
   }
   std::cout << "North, South, West, East connections established" << std::endl;
   std::cout << std::endl;


   ////////////////////////////////////////////////////////
   //   Simulation
   ///////////////////////////////////////////////////////

   sc_start(sc_core::sc_time(0, SC_NS));
   signal_resetn = false;

   // network boundaries signals
   for (size_t x = 0; x < X_SIZE ; x++){
      for (size_t y = 0; y < Y_SIZE ; y++){
         for (size_t a = 0; a < 4; a++){
            for (size_t k = 0; k < 3; k++){
               signal_dspin_false_cmd_in [x][y][a][k].write = false;
               signal_dspin_false_cmd_in [x][y][a][k].read  = true;
               signal_dspin_false_cmd_out[x][y][a][k].write = false;
               signal_dspin_false_cmd_out[x][y][a][k].read  = true;
            }

            for (size_t k = 0; k < 2; k++){
               signal_dspin_false_rsp_in [x][y][a][k].write = false;
               signal_dspin_false_rsp_in [x][y][a][k].read  = true;
               signal_dspin_false_rsp_out[x][y][a][k].write = false;
               signal_dspin_false_rsp_out[x][y][a][k].read  = true;
            }
         }
      }
   }

   sc_start(sc_core::sc_time(1, SC_NS));
   signal_resetn = true;

   if (gettimeofday(&t1, NULL) != 0) 
   {
      perror("gettimeofday");
      return EXIT_FAILURE;
   }

   for (uint64_t n = 1; n < ncycles && !stop_called; n++)
   {
      // Monitor a specific address for L1 & L2 caches
      //clusters[0][0]->proc[0]->cache_monitor(0x800002c000ULL);
      //clusters[1][0]->memc->copies_monitor(0x800002C000ULL);

      if( (n % 5000000) == 0)
      {

         if (gettimeofday(&t2, NULL) != 0) 
         {
            perror("gettimeofday");
            return EXIT_FAILURE;
         }

         ms1 = (uint64_t) t1.tv_sec * 1000ULL + (uint64_t) t1.tv_usec / 1000;
         ms2 = (uint64_t) t2.tv_sec * 1000ULL + (uint64_t) t2.tv_usec / 1000;
         std::cerr << "platform clock frequency " 
                   << (double) 5000000 / (double) (ms2 - ms1) << "Khz" << std::endl;

         if (gettimeofday(&t1, NULL) != 0) 
         {
            perror("gettimeofday");
            return EXIT_FAILURE;
         }
      }

      if ( trace_ok and (n > trace_from) )
      {
         std::cout << "****************** cycle " << std::dec << n ;
         std::cout << " ************************************************" << std::endl;

        // trace proc[trace_proc_id] 
        size_t l = trace_proc_id % NB_PROCS_MAX ;
        size_t x = (trace_proc_id / NB_PROCS_MAX) >> Y_WIDTH ;
        size_t y = (trace_proc_id / NB_PROCS_MAX) & ((1<<Y_WIDTH) - 1);

        std::ostringstream proc_signame;
        proc_signame << "[SIG]PROC_" << x << "_" << y << "_" << l ;
        std::ostringstream p2m_signame;
        p2m_signame << "[SIG]PROC_" << x << "_" << y << "_" << l << " P2M" ;
        std::ostringstream m2p_signame;
        m2p_signame << "[SIG]PROC_" << x << "_" << y << "_" << l << " M2P" ;
        std::ostringstream p_cmd_signame;
        p_cmd_signame << "[SIG]PROC_" << x << "_" << y << "_" << l << " CMD" ;
        std::ostringstream p_rsp_signame;
        p_rsp_signame << "[SIG]PROC_" << x << "_" << y << "_" << l << " RSP" ;

        clusters[x][y]->proc[l]->print_trace();
//        clusters[x][y]->wi_proc[l]->print_trace();
        clusters[x][y]->signal_vci_ini_proc[l].print_trace(proc_signame.str());
        clusters[x][y]->signal_dspin_p2m_proc[l].print_trace(p2m_signame.str());
        clusters[x][y]->signal_dspin_m2p_proc[l].print_trace(m2p_signame.str());
        clusters[x][y]->signal_dspin_cmd_proc_i[l].print_trace(p_cmd_signame.str());
        clusters[x][y]->signal_dspin_rsp_proc_i[l].print_trace(p_rsp_signame.str());

//        clusters[x][y]->xbar_rsp_d->print_trace();
//        clusters[x][y]->xbar_cmd_d->print_trace();
//        clusters[x][y]->signal_dspin_cmd_l2g_d.print_trace("[SIG]L2G CMD");
//        clusters[x][y]->signal_dspin_cmd_g2l_d.print_trace("[SIG]G2L CMD");
//        clusters[x][y]->signal_dspin_rsp_l2g_d.print_trace("[SIG]L2G RSP");
//        clusters[x][y]->signal_dspin_rsp_g2l_d.print_trace("[SIG]G2L RSP");

        // trace memc[trace_memc_id] 
        x = trace_memc_id >> Y_WIDTH;
        y = trace_memc_id & ((1<<Y_WIDTH) - 1);

        std::ostringstream smemc;
        smemc << "[SIG]MEMC_" << x << "_" << y;
        std::ostringstream sxram;
        sxram << "[SIG]XRAM_" << x << "_" << y;
        std::ostringstream sm2p;
        sm2p << "[SIG]MEMC_" << x << "_" << y << " M2P" ;
        std::ostringstream sp2m;
        sp2m << "[SIG]MEMC_" << x << "_" << y << " P2M" ;
        std::ostringstream m_cmd_signame;
        m_cmd_signame << "[SIG]MEMC_" << x << "_" << y <<  " CMD" ;
        std::ostringstream m_rsp_signame;
        m_rsp_signame << "[SIG]MEMC_" << x << "_" << y <<  " RSP" ;

        clusters[x][y]->memc->print_trace();
//        clusters[x][y]->wt_memc->print_trace();
        clusters[x][y]->signal_vci_tgt_memc.print_trace(smemc.str());
        clusters[x][y]->signal_vci_xram.print_trace(sxram.str());
        clusters[x][y]->signal_dspin_p2m_memc.print_trace(sp2m.str());
        clusters[x][y]->signal_dspin_m2p_memc.print_trace(sm2p.str());
        clusters[x][y]->signal_dspin_cmd_memc_t.print_trace(m_cmd_signame.str());
        clusters[x][y]->signal_dspin_rsp_memc_t.print_trace(m_rsp_signame.str());
        
        // trace replicated peripherals
//        clusters[1][1]->mdma->print_trace();
//        clusters[1][1]->signal_vci_tgt_mdma.print_trace("[SIG]MDMA_TGT_1_1");
//        clusters[1][1]->signal_vci_ini_mdma.print_trace("[SIG]MDMA_INI_1_1");
        

        // trace external peripherals
        
//        clusters[0][0]->bdev->print_trace();
//        clusters[0][0]->signal_vci_tgt_bdev.print_trace("[SIG]BDEV_TGT");
//        clusters[0][0]->signal_vci_ini_bdev.print_trace("[SIG]BDEV_INI");

//        clusters[0][0]->mtty->print_trace();
//        clusters[0][0]->wt_mtty->print_trace();
//        clusters[0][0]->signal_vci_tgt_mtty.print_trace("[SIG]MTTY");
      }

      sc_start(sc_core::sc_time(1, SC_NS));
   }

   
   // Free memory
   for (size_t i = 0; i  < (X_SIZE * Y_SIZE); i++)
   {
      size_t x = i / Y_SIZE;
      size_t y = i % Y_SIZE;
      delete clusters[x][y];
   }

   dealloc_elems<DspinSignals<dspin_cmd_width> >(signal_dspin_h_cmd_inc, X_SIZE - 1, Y_SIZE, 3);
   dealloc_elems<DspinSignals<dspin_cmd_width> >(signal_dspin_h_cmd_dec, X_SIZE - 1, Y_SIZE, 3);
   dealloc_elems<DspinSignals<dspin_rsp_width> >(signal_dspin_h_rsp_inc, X_SIZE - 1, Y_SIZE, 2);
   dealloc_elems<DspinSignals<dspin_rsp_width> >(signal_dspin_h_rsp_dec, X_SIZE - 1, Y_SIZE, 2);
   dealloc_elems<DspinSignals<dspin_cmd_width> >(signal_dspin_v_cmd_inc, X_SIZE, Y_SIZE - 1, 3);
   dealloc_elems<DspinSignals<dspin_cmd_width> >(signal_dspin_v_cmd_dec, X_SIZE, Y_SIZE - 1, 3);
   dealloc_elems<DspinSignals<dspin_rsp_width> >(signal_dspin_v_rsp_inc, X_SIZE, Y_SIZE - 1, 2);
   dealloc_elems<DspinSignals<dspin_rsp_width> >(signal_dspin_v_rsp_dec, X_SIZE, Y_SIZE - 1, 2);
   dealloc_elems<DspinSignals<dspin_cmd_width> >(signal_dspin_false_cmd_in, X_SIZE, Y_SIZE, 4, 3);
   dealloc_elems<DspinSignals<dspin_cmd_width> >(signal_dspin_false_cmd_out, X_SIZE, Y_SIZE, 4, 3);
   dealloc_elems<DspinSignals<dspin_rsp_width> >(signal_dspin_false_rsp_in, X_SIZE, Y_SIZE, 4, 2);
   dealloc_elems<DspinSignals<dspin_rsp_width> >(signal_dspin_false_rsp_out, X_SIZE, Y_SIZE, 4, 2);

   return EXIT_SUCCESS;
}


void handler(int dummy = 0) {
   stop_called = true;
   sc_stop();
}

void voidhandler(int dummy = 0) {}

int sc_main (int argc, char *argv[])
{
   signal(SIGINT, handler);
   signal(SIGPIPE, voidhandler);

   try {
      return _main(argc, argv);
   } catch (std::exception &e) {
      std::cout << e.what() << std::endl;
   } catch (...) {
      std::cout << "Unknown exception occured" << std::endl;
      throw;
   }
   return 1;
}


// Local Variables:
// tab-width: 3
// c-basic-offset: 3
// c-file-offsets:((innamespace . 0)(inline-open . 0))
// indent-tabs-mode: nil
// End:

// vim: filetype=cpp:expandtab:shiftwidth=3:tabstop=3:softtabstop=3