diff options
| author | Myrice <[email protected]> | 2015-04-07 14:43:05 -0700 |
|---|---|---|
| committer | Myrice <[email protected]> | 2015-04-07 14:43:05 -0700 |
| commit | 6b9eb92bd0b03d69a2f2e9c075a8af99d860d4d1 (patch) | |
| tree | c741ac460cb86219446070765be97536143def55 /src/intersim2/.svn/pristine/af | |
| parent | 4dc9d53085b568aea0cefe75d599f87bb5e0841f (diff) | |
Booksim2 abandoned svn and moved to github (https://github.com/booksim/booksim2). This .svn folder is useless now and should be deleted.
For further integration, a git submodule/git subtree may be used. Since I modified their source code, we cannot use git submodule/git subtree easily.
Signed-off-by: Myrice <[email protected]>
Diffstat (limited to 'src/intersim2/.svn/pristine/af')
| -rw-r--r-- | src/intersim2/.svn/pristine/af/afde60b791408b0db1c56c113ccfe45105b846eb.svn-base | 119 |
1 files changed, 0 insertions, 119 deletions
diff --git a/src/intersim2/.svn/pristine/af/afde60b791408b0db1c56c113ccfe45105b846eb.svn-base b/src/intersim2/.svn/pristine/af/afde60b791408b0db1c56c113ccfe45105b846eb.svn-base deleted file mode 100644 index 665e5b3..0000000 --- a/src/intersim2/.svn/pristine/af/afde60b791408b0db1c56c113ccfe45105b846eb.svn-base +++ /dev/null @@ -1,119 +0,0 @@ -// $Id$ - -/* - Copyright (c) 2007-2012, Trustees of The Leland Stanford Junior University - 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. - - 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. -*/ - -// ---------------------------------------------------------------------- -// -// TreeArbiter -// -// ---------------------------------------------------------------------- - -#include "tree_arb.hpp" -#include <iostream> -#include <sstream> - -using namespace std ; - -TreeArbiter::TreeArbiter( Module *parent, const string &name, - int size, int groups, const string & arb_type ) - : Arbiter( parent, name, size ) { - assert(size % groups == 0); - _group_arbiters.resize(groups); - _group_reqs.resize(groups, 0); - _group_size = size / groups; - for(int i = 0; i < groups; ++i) { - ostringstream group_arb_name; - group_arb_name << "group_arb" << i; - _group_arbiters[i] = Arbiter::NewArbiter(this, group_arb_name.str(), arb_type, _group_size); - } - _global_arbiter = Arbiter::NewArbiter(this, "global_arb", arb_type, groups); -} - -TreeArbiter::~TreeArbiter() { - for(int i = 0; i < (int)_group_arbiters.size(); ++i) { - delete _group_arbiters[i]; - } - delete _global_arbiter; -} - -void TreeArbiter::PrintState() const { - for(int i = 0; i < (int)_group_arbiters.size(); ++i) { - cout << "Group arbiter " << i << ":" << endl; - _group_arbiters[i]->PrintState(); - } - cout << "Global arbiter:" << endl; - _global_arbiter->PrintState(); -} - -void TreeArbiter::UpdateState() { - if(_selected > -1) { - int last_winner = _global_arbiter->LastWinner(); - assert(last_winner >= 0 && last_winner < (int)_group_arbiters.size()); - _group_arbiters[last_winner]->UpdateState(); - _global_arbiter->UpdateState(); - } -} - -void TreeArbiter::AddRequest( int input, int id, int pri ) -{ - Arbiter::AddRequest(input, id, pri); - int group_index = input / _group_size; - _group_arbiters[group_index]->AddRequest( input % _group_size, id, pri ); - ++_group_reqs[group_index]; -} - -int TreeArbiter::Arbitrate( int* id, int* pri ) { - if(!_num_reqs) { - return -1; - } - for(int i = 0; i < (int)_group_arbiters.size(); ++i) { - if(_group_reqs[i]) { - int group_id, group_pri; - _group_arbiters[i]->Arbitrate(&group_id, &group_pri); - _global_arbiter->AddRequest(i, group_id, group_pri); - } - } - int group = _global_arbiter->Arbitrate(NULL, NULL); - assert(group >= 0 && group < (int)_group_arbiters.size()); - int group_sel = _group_arbiters[group]->LastWinner(); - assert(group_sel >= 0 && group_sel < _group_size); - _selected = group * _group_size + group_sel; - assert(_selected >= 0 && _selected < _size); - return Arbiter::Arbitrate(id, pri); -} - -void TreeArbiter::Clear() -{ - if(!_num_reqs) { - return; - } - for(int i = 0; i < (int)_group_arbiters.size(); ++i) { - _group_arbiters[i]->Clear(); - _group_reqs[i] = 0; - } - _global_arbiter->Clear(); - Arbiter::Clear(); -} |
