// ========== Copyright Header Begin ========================================== // // OpenSPARC T2 Processor File: OmniAccessMethod.vr // Copyright (C) 1995-2007 Sun Microsystems, Inc. All Rights Reserved // 4150 Network Circle, Santa Clara, California 95054, U.S.A. // // * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. // // This program is free software; you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation; version 2 of the License. // // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License // along with this program; if not, write to the Free Software // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA // // For the avoidance of doubt, and except that if any non-GPL license // choice is available it will apply instead, Sun elects to use only // the General Public License version 2 (GPLv2) at this time for any // software where a choice of GPL license versions is made // available with the language indicating that GPLv2 or any later version // may be used, or where a choice of which version of the GPL is applied is // otherwise unspecified. // // Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, // CA 95054 USA or visit www.sun.com if you need additional information or // have any questions. // // ========== Copyright Header End ============================================ #include #include "general_csr_defines.vri" #include "report_macros.vri" #include "CSRAccessMethod.vrh" #ifndef N2_FC extern verilog_task omni_rd (bit[31:0] index, bit[CSRT_ADDR_WIDTH-1:0] addr, var bit [CSRT_DATA_WIDTH-1:0] dout) ; extern verilog_task omni_wr (bit[31:0] index, bit zsub, bit[CSRT_ADDR_WIDTH-1:0] addr, bit [CSRT_DATA_WIDTH-1:0] din) ; #endif //================================================= // Omni access to the wci_cluster_config register //================================================= class OmniAccessMethod extends CSRAccessMethod { local integer index; local integer zsub; local integer csr_omni_sem; //================================================= // Constructor //================================================= task new ( bit [31:0] input_index) { index = input_index; csr_omni_sem = alloc(SEMAPHORE,0,1,1); if (csr_omni_sem == 0) QuickReport(CSRReport, RTYP_CSR_ERROR, "OmniAccessMethod::new: Out of semaphore space."); } // end task new () //================================================= // Read function //================================================= function bit [CSRT_DATA_WIDTH-1:0] read (bit[CSRT_ADDR_OFFSET_WIDTH-1:0] addr) { #ifdef N2_FC QuickReport(CSRReport, RTYP_CSR_ERROR, "OmniAccessMethod::read: not supported in FC bench. addr = %h.", addr); #else bit [CSRT_DATA_WIDTH-1:0] rd_data; semaphore_get (WAIT, csr_omni_sem, 1); omni_rd (index, addr, rd_data); read = rd_data; semaphore_put (csr_omni_sem, 1); #endif } // end function read() //================================================= // Write task //================================================= task write ( bit[CSRT_ADDR_OFFSET_WIDTH-1:0] addr, bit [CSRT_DATA_WIDTH-1:0] wr_data ) { #ifdef N2_FC QuickReport(CSRReport, RTYP_CSR_ERROR, "OmniAccessMethod::write: not supported in FC bench. addr = %h.", addr); #else semaphore_get (WAIT, csr_omni_sem, 1); omni_wr (index, zsub, addr, wr_data); semaphore_put (csr_omni_sem, 1); #endif } // end task write } // end class OmniAccessMethod