Initial commit of OpenSPARC T2 design and verification files.
[OpenSPARC-T2-DV] / verif / env / fnx / vlib / CSRFmwork / src / OmniAccessMethod.vr
// ========== Copyright Header Begin ==========================================
//
// OpenSPARC T2 Processor File: OmniAccessMethod.vr
// Copyright (C) 1995-2007 Sun Microsystems, Inc. All Rights Reserved
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// ========== Copyright Header End ============================================
#include <vera_defines.vrh>
#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