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<h1>cl_syoscb_compare_ooo.svh</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// Class which implements the out of order compare algorithm</span>
<a name="l00002"></a>00002 <span class="keyword">class </span>cl_syoscb_compare_ooo <span class="keyword">extends</span> <a class="code" href="classcl__syoscb__compare__base.html" title="Base class for all comapre algorithms.">cl_syoscb_compare_base</a>;
<a name="l00003"></a>00003 <span class="comment">//-------------------------------------</span>
<a name="l00004"></a>00004 <span class="comment">// UVM Macros</span>
<a name="l00005"></a>00005 <span class="comment">//-------------------------------------</span>
<a name="l00006"></a>00006 `uvm_object_utils(cl_syoscb_compare_ooo)
<a name="l00007"></a>00007
<a name="l00008"></a>00008 <span class="comment">//-------------------------------------</span>
<a name="l00009"></a>00009 <span class="comment">// Constructor</span>
<a name="l00010"></a>00010 <span class="comment">//-------------------------------------</span>
<a name="l00011"></a>00011 extern function new(string name = "cl_syoscb_compare_ooo");
<a name="l00012"></a>00012
<a name="l00013"></a>00013 <span class="comment">//-------------------------------------</span>
<a name="l00014"></a>00014 <span class="comment">// Compare API</span>
<a name="l00015"></a>00015 <span class="comment">//-------------------------------------</span>
<a name="l00016"></a>00016 extern <span class="keyword">virtual</span> function void compare();
<a name="l00017"></a>00017 extern function void compare_do();
<a name="l00018"></a>00018 endclass: cl_syoscb_compare_ooo
<a name="l00019"></a>00019
<a name="l00020"></a>00020 function cl_syoscb_compare_ooo::new(string name = "cl_syoscb_compare_ooo");
<a name="l00021"></a>00021 super.new(name);
<a name="l00022"></a>00022 endfunction: new
<a name="l00023"></a>00023 <span class="comment"></span>
<a name="l00024"></a>00024 <span class="comment">/// <b>Compare API</b>: Mandatory overwriting of the base class' compare method.</span>
<a name="l00025"></a>00025 <span class="comment">/// Currently, this just calls do_copy() blindly </span>
<a name="l00026"></a>00026 <span class="comment"></span>function void cl_syoscb_compare_ooo::compare();
<a name="l00027"></a>00027 <span class="comment">// Here any state variables should be queried</span>
<a name="l00028"></a>00028 <span class="comment">// to compute if the compare should be done or not</span>
<a name="l00029"></a>00029 this.compare_do();
<a name="l00030"></a>00030 endfunction: compare
<a name="l00031"></a>00031 <span class="comment"></span>
<a name="l00032"></a>00032 <span class="comment">/// <b>Compare API</b>: Mandatory overwriting of the base class' do_compare method.</span>
<a name="l00033"></a>00033 <span class="comment">/// Here the actual out of order compare is implemented.</span>
<a name="l00034"></a>00034 <span class="comment">///</span>
<a name="l00035"></a>00035 <span class="comment">/// The algorithm gets the primary queue and then loops over all other queues to see if</span>
<a name="l00036"></a>00036 <span class="comment">/// it can find primary item as any item in all of the other queues. If so then the items</span>
<a name="l00037"></a>00037 <span class="comment">/// are removed from all queues. If not then nothing is done. Thus, if some items are not</span>
<a name="l00038"></a>00038 <span class="comment">/// matched then the result is that the queue will be non-empty at the end of simulation.</span>
<a name="l00039"></a>00039 <span class="comment">/// This will then be caught by the check_phase.</span>
<a name="l00040"></a>00040 <span class="comment"></span>function void cl_syoscb_compare_ooo::compare_do();
<a name="l00041"></a>00041 string primary_queue_name;
<a name="l00042"></a>00042 <a class="code" href="classcl__syoscb__queue.html" title="Class which base concet of a queue.">cl_syoscb_queue</a> primary_queue;
<a name="l00043"></a>00043 <a class="code" href="classcl__syoscb__queue__iterator__base.html" title="Queue iterator base class defining the iterator API used for iterating queues.">cl_syoscb_queue_iterator_base</a> primary_queue_iter;
<a name="l00044"></a>00044 string queue_names[];
<a name="l00045"></a>00045 int unsigned secondary_item_found[string];
<a name="l00046"></a>00046 bit compare_continue = 1'b1;
<a name="l00047"></a>00047 bit compare_result = 1'b0;
<a name="l00048"></a>00048 <a class="code" href="classcl__syoscb__item.html" title="The UVM scoreboard item.">cl_syoscb_item</a> primary_item;
<a name="l00049"></a>00049
<a name="l00050"></a>00050 <span class="comment">// Initialize state variables</span>
<a name="l00051"></a>00051 primary_queue_name = this.get_primary_queue_name();
<a name="l00052"></a>00052 this.cfg.get_queues(queue_names);
<a name="l00053"></a>00053
<a name="l00054"></a>00054 primary_queue = this.cfg.get_queue(primary_queue_name);
<a name="l00055"></a>00055 if(primary_queue == null) begin
<a name="l00056"></a>00056 `uvm_fatal("QUEUE_ERROR", $sformatf("[%s]: cmp-ooo: Unable to retrieve primary queue handle", this.cfg.get_scb_name()));
<a name="l00057"></a>00057 end
<a name="l00058"></a>00058
<a name="l00059"></a>00059 primary_queue_iter = primary_queue.create_iterator();
<a name="l00060"></a>00060
<a name="l00061"></a>00061 `uvm_info("DEBUG", $sformatf("[%s]: cmp-ooo: primary queue: %s", this.cfg.get_scb_name(), primary_queue_name), UVM_FULL);
<a name="l00062"></a>00062 `uvm_info("DEBUG", $sformatf("[%s]: cmp-ooo: number of queues: %0d", this.cfg.get_scb_name(), queue_names.size()), UVM_FULL);
<a name="l00063"></a>00063
<a name="l00064"></a>00064 <span class="comment">// Outer loop loops through all</span>
<a name="l00065"></a>00065 while (!primary_queue_iter.is_done()) begin
<a name="l00066"></a>00066 primary_item = primary_queue_iter.get_item();
<a name="l00067"></a>00067
<a name="l00068"></a>00068 `uvm_info("DEBUG", $sformatf("[%s]: cmp-ooo: Now comparing primary transaction:\n%s", this.cfg.get_scb_name(), primary_item.sprint()), UVM_FULL);
<a name="l00069"></a>00069
<a name="l00070"></a>00070 <span class="comment">// Clear list of found slave items before starting new inner loop</span>
<a name="l00071"></a>00071 secondary_item_found.delete();
<a name="l00072"></a>00072
<a name="l00073"></a>00073 <span class="comment">// Inner loop through all queues</span>
<a name="l00074"></a>00074 foreach(queue_names[i]) begin
<a name="l00075"></a>00075 `uvm_info("DEBUG", $sformatf("[%s]: cmp-ooo: Looking at queue: %s", this.cfg.get_scb_name(), queue_names[i]), UVM_FULL);
<a name="l00076"></a>00076
<a name="l00077"></a>00077 if(queue_names[i] != primary_queue_name) begin
<a name="l00078"></a>00078 <a class="code" href="classcl__syoscb__queue.html" title="Class which base concet of a queue.">cl_syoscb_queue</a> secondary_queue;
<a name="l00079"></a>00079 <a class="code" href="classcl__syoscb__queue__iterator__base.html" title="Queue iterator base class defining the iterator API used for iterating queues.">cl_syoscb_queue_iterator_base</a> secondary_queue_iter;
<a name="l00080"></a>00080
<a name="l00081"></a>00081 `uvm_info("DEBUG", $sformatf("[%s]: cmp-ooo: %s is a secondary queue - now comparing", this.cfg.get_scb_name(), queue_names[i]), UVM_FULL);
<a name="l00082"></a>00082
<a name="l00083"></a>00083 <span class="comment">// Get the secondary queue</span>
<a name="l00084"></a>00084 secondary_queue = this.cfg.get_queue(queue_names[i]);
<a name="l00085"></a>00085
<a name="l00086"></a>00086 if(secondary_queue == null) begin
<a name="l00087"></a>00087 `uvm_fatal("QUEUE_ERROR", $sformatf("[%s]: cmp-ooo: Unable to retrieve secondary queue handle", this.cfg.get_scb_name()));
<a name="l00088"></a>00088 end
<a name="l00089"></a>00089
<a name="l00090"></a>00090 `uvm_info("DEBUG", $sformatf("[%s]: cmp-ooo: %0d items in queue: %s", this.cfg.get_scb_name(), secondary_queue.get_size(), queue_names[i]), UVM_FULL);
<a name="l00091"></a>00091
<a name="l00092"></a>00092 <span class="comment">// Only trigger the compare if there are elements in the queue</span>
<a name="l00093"></a>00093 if(secondary_queue.get_size()>0) begin
<a name="l00094"></a>00094 <span class="comment">// Get an iterator for the secondary queue</span>
<a name="l00095"></a>00095 secondary_queue_iter = secondary_queue.create_iterator();
<a name="l00096"></a>00096
<a name="l00097"></a>00097 <span class="comment">// Only the first match is removed</span>
<a name="l00098"></a>00098 while(!secondary_queue_iter.is_done()) begin
<a name="l00099"></a>00099 <span class="comment">// Get the item from the secondary queue</span>
<a name="l00100"></a>00100 <a class="code" href="classcl__syoscb__item.html" title="The UVM scoreboard item.">cl_syoscb_item</a> sih = secondary_queue_iter.get_item();
<a name="l00101"></a>00101
<a name="l00102"></a>00102 if(sih.compare(primary_item) == 1'b1) begin
<a name="l00103"></a>00103 secondary_item_found[queue_names[i]] = secondary_queue_iter.get_idx();
<a name="l00104"></a>00104 `uvm_info("DEBUG", $sformatf("[%s]: cmp-ooo: Secondary item found at index: %0d:\n%s", this.cfg.get_scb_name(), secondary_queue_iter.get_idx(), sih.sprint()), UVM_FULL);
<a name="l00105"></a>00105 break;
<a name="l00106"></a>00106 end
<a name="l00107"></a>00107 if(!secondary_queue_iter.next()) begin
<a name="l00108"></a>00108 `uvm_fatal("QUEUE_ERROR", $sformatf("[%s]: cmp-ooo: Unable to get next element from iterator on secondary queue: %s", this.cfg.get_scb_name(), queue_names[i]));
<a name="l00109"></a>00109 end
<a name="l00110"></a>00110 end
<a name="l00111"></a>00111
<a name="l00112"></a>00112 if(!secondary_queue.delete_iterator(secondary_queue_iter)) begin
<a name="l00113"></a>00113 `uvm_fatal("QUEUE_ERROR", $sformatf("[%s]: cmp-ooo: Unable to delete iterator from secondaery queue: %s", this.cfg.get_scb_name(), queue_names[i]));
<a name="l00114"></a>00114 end
<a name="l00115"></a>00115 end else begin
<a name="l00116"></a>00116 `uvm_info("DEBUG", $sformatf("[%s]: cmp-ooo: %s is empty - skipping", this.cfg.get_scb_name(), queue_names[i]), UVM_FULL);
<a name="l00117"></a>00117 end
<a name="l00118"></a>00118
<a name="l00119"></a>00119 end else begin
<a name="l00120"></a>00120 `uvm_info("DEBUG", $sformatf("[%s]: cmp-ooo: %s is the primary queue - skipping", this.cfg.get_scb_name(), queue_names[i]), UVM_FULL);
<a name="l00121"></a>00121 end
<a name="l00122"></a>00122 end
<a name="l00123"></a>00123
<a name="l00124"></a>00124 <span class="comment">// Only start to remove items if all slave items are found (One from each slave queue)</span>
<a name="l00125"></a>00125 if(secondary_item_found.size() == queue_names.size()-1) begin
<a name="l00126"></a>00126 string queue_name;
<a name="l00127"></a>00127 <a class="code" href="classcl__syoscb__item.html" title="The UVM scoreboard item.">cl_syoscb_item</a> pih;
<a name="l00128"></a>00128
<a name="l00129"></a>00129 <span class="comment">// Get the item from the primary queue</span>
<a name="l00130"></a>00130 pih = primary_queue_iter.get_item();
<a name="l00131"></a>00131
<a name="l00132"></a>00132 `uvm_info("DEBUG", $sformatf("[%s]: cmp-ooo: Found match for primary queue item :\n%s", this.cfg.get_scb_name(), pih.sprint()), UVM_FULL);
<a name="l00133"></a>00133
<a name="l00134"></a>00134 <span class="comment">// Remove from primary</span>
<a name="l00135"></a>00135 if(!primary_queue.delete_item(primary_queue_iter.get_idx())) begin
<a name="l00136"></a>00136 `uvm_error("QUEUE_ERROR", $sformatf("[%s]: cmp-ooo: Unable to delete item idx %0d from queue %s",
<a name="l00137"></a>00137 this.cfg.get_scb_name(), primary_queue_iter.get_idx(), primary_queue.get_name()));
<a name="l00138"></a>00138 end
<a name="l00139"></a>00139
<a name="l00140"></a>00140 <span class="comment">// Remove from all secondaries</span>
<a name="l00141"></a>00141 while(secondary_item_found.next(queue_name)) begin
<a name="l00142"></a>00142 <a class="code" href="classcl__syoscb__queue.html" title="Class which base concet of a queue.">cl_syoscb_queue</a> secondary_queue;
<a name="l00143"></a>00143
<a name="l00144"></a>00144 <span class="comment">// Get the secondary queue</span>
<a name="l00145"></a>00145 secondary_queue = this.cfg.get_queue(queue_name);
<a name="l00146"></a>00146
<a name="l00147"></a>00147 if(secondary_queue == null) begin
<a name="l00148"></a>00148 `uvm_fatal("QUEUE_ERROR", $sformatf("[%s]: cmp-ooo: Unable to retrieve secondary queue handle", this.cfg.get_scb_name()));
<a name="l00149"></a>00149 end
<a name="l00150"></a>00150
<a name="l00151"></a>00151 if(!secondary_queue.delete_item(secondary_item_found[queue_name])) begin
<a name="l00152"></a>00152 `uvm_error("QUEUE_ERROR", $sformatf("[%s]: cmp-ooo: Unable to delete item idx %0d from queue %s",
<a name="l00153"></a>00153 this.cfg.get_scb_name(), secondary_item_found[queue_name], secondary_queue.get_name()));
<a name="l00154"></a>00154 end
<a name="l00155"></a>00155 end
<a name="l00156"></a>00156 end
<a name="l00157"></a>00157
<a name="l00158"></a>00158 <span class="comment">// Call .next() blindly since we do not care about the</span>
<a name="l00159"></a>00159 <span class="comment">// return value, since we might be at the end of the queue.</span>
<a name="l00160"></a>00160 <span class="comment">// Thus, .next() will return 1'b0 at the end of the queue</span>
<a name="l00161"></a>00161 void'(primary_queue_iter.next());
<a name="l00162"></a>00162 end
<a name="l00163"></a>00163
<a name="l00164"></a>00164 if(!primary_queue.delete_iterator(primary_queue_iter)) begin
<a name="l00165"></a>00165 `uvm_fatal("QUEUE_ERROR", $sformatf("[%s]: cmp-ooo: Unable to delete iterator from primary queue: %s", this.cfg.get_scb_name(), primary_queue_name));
<a name="l00166"></a>00166 end
<a name="l00167"></a>00167 endfunction: compare_do
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