| 1 | // ========== Copyright Header Begin ========================================== |
| 2 | // |
| 3 | // OpenSPARC T2 Processor File: niu_dma.vr |
| 4 | // Copyright (C) 1995-2007 Sun Microsystems, Inc. All Rights Reserved |
| 5 | // 4150 Network Circle, Santa Clara, California 95054, U.S.A. |
| 6 | // |
| 7 | // * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 8 | // |
| 9 | // This program is free software; you can redistribute it and/or modify |
| 10 | // it under the terms of the GNU General Public License as published by |
| 11 | // the Free Software Foundation; version 2 of the License. |
| 12 | // |
| 13 | // This program is distributed in the hope that it will be useful, |
| 14 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | // GNU General Public License for more details. |
| 17 | // |
| 18 | // You should have received a copy of the GNU General Public License |
| 19 | // along with this program; if not, write to the Free Software |
| 20 | // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 21 | // |
| 22 | // For the avoidance of doubt, and except that if any non-GPL license |
| 23 | // choice is available it will apply instead, Sun elects to use only |
| 24 | // the General Public License version 2 (GPLv2) at this time for any |
| 25 | // software where a choice of GPL license versions is made |
| 26 | // available with the language indicating that GPLv2 or any later version |
| 27 | // may be used, or where a choice of which version of the GPL is applied is |
| 28 | // otherwise unspecified. |
| 29 | // |
| 30 | // Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 31 | // CA 95054 USA or visit www.sun.com if you need additional information or |
| 32 | // have any questions. |
| 33 | // |
| 34 | // ========== Copyright Header End ============================================ |
| 35 | #include <vera_defines.vrh> |
| 36 | #include <ListMacros.vrh> |
| 37 | #include "niu_dmc_descr.vrh" |
| 38 | #include "niu_dmc_descr_ring.vrh" |
| 39 | |
| 40 | #include "niu_int_dev.vrh" |
| 41 | #include "niu_dma_bind.vrh" |
| 42 | |
| 43 | extern CNiuDMABind NiuDMABind; |
| 44 | |
| 45 | class CDMA extends CNiuIntrDev { |
| 46 | integer id; |
| 47 | integer type; //0=Tx or 1=Rx |
| 48 | |
| 49 | integer group_no = -1; |
| 50 | integer function_no =-1; |
| 51 | integer en_pio_virt=0; |
| 52 | |
| 53 | integer address_incr; // either 4 or 8 depending upon Tx or Rx |
| 54 | |
| 55 | |
| 56 | // partition support shadow variables |
| 57 | bit [63:0] ring_lpvalid; |
| 58 | bit [63:0] ring_lpmask1; |
| 59 | bit [63:0] ring_lpvalue1; |
| 60 | bit [63:0] ring_lpmask2; |
| 61 | bit [63:0] ring_lpvalue2; |
| 62 | bit [63:0] ring_lprelo1; |
| 63 | bit [63:0] ring_lprelo2; |
| 64 | bit [63:0] ring_lphandle; |
| 65 | |
| 66 | // descriptor_ring -- - |
| 67 | CDescrRing desc_ring; |
| 68 | |
| 69 | function bit[63:0] translate_address(bit[63:0] sw_address); |
| 70 | virtual function integer isr( ( bit[1:0] ldf_flags = 0) ){} |
| 71 | task SetDMAGroupBind( integer g); |
| 72 | task ResetDMAGroupBind( integer g); |
| 73 | function integer isDMABound(integer dma_no, integer tx_or_rx, integer group_no); |
| 74 | function bit[63:0] getPIOAddress( bit[63:0] address, (integer pass_through=1)); |
| 75 | task new( integer i, integer t, (integer intr_dev_id = 0) ) { |
| 76 | super.new(intr_dev_id); |
| 77 | id = i; |
| 78 | type = t; |
| 79 | } |
| 80 | task SetDefFunc(integer func) { |
| 81 | NiuDMABind.SetDefFunc(func,type,id); |
| 82 | } |
| 83 | } |
| 84 | function bit[63:0] CDMA::getPIOAddress( bit[63:0] address, (integer pass_through=1)) { |
| 85 | |
| 86 | getPIOAddress = NiuDMABind.getPIOAddress(id, type, group_no, address, pass_through); |
| 87 | |
| 88 | } |
| 89 | |
| 90 | task CDMA::SetDMAGroupBind( integer g){ |
| 91 | group_no = g; |
| 92 | printf("CDMA::SetDMAGroupBind Group - %d DMA - %d \n",g,id); |
| 93 | if(group_no<=15) { |
| 94 | function_no = 0; |
| 95 | } else if(group_no<=31) { |
| 96 | function_no = 1; |
| 97 | } else if(group_no<=47) { |
| 98 | function_no = 2; |
| 99 | } else if(group_no<=63) { |
| 100 | function_no = 3; |
| 101 | } else { |
| 102 | printf(" ERROR Incorrect Group Number Specified for DMA - %d \n",id); |
| 103 | } |
| 104 | |
| 105 | if(type==0) // TX |
| 106 | NiuDMABind.SetTxBind(id,group_no); |
| 107 | else // RX |
| 108 | NiuDMABind.SetRxBind(id,group_no); |
| 109 | |
| 110 | } |
| 111 | |
| 112 | function integer CDMA::isDMABound(integer dma_no, integer tx_or_rx, integer group_no) { |
| 113 | isDMABound = NiuDMABind.isDMABound(dma_no, tx_or_rx, group_no); |
| 114 | } |
| 115 | |
| 116 | task CDMA::ResetDMAGroupBind( integer g){ |
| 117 | group_no = g; |
| 118 | printf("CDMA::ResetDMAGroupBind Group - %d DMA - %d \n",g,id); |
| 119 | if(group_no<=15) { |
| 120 | function_no = 0; |
| 121 | } else if(group_no<=31) { |
| 122 | function_no = 1; |
| 123 | } else if(group_no<=47) { |
| 124 | function_no = 2; |
| 125 | } else if(group_no<=63) { |
| 126 | function_no = 3; |
| 127 | } else { |
| 128 | printf(" ERROR Incorrect Group Number Specified for DMA - %d \n",id); |
| 129 | } |
| 130 | |
| 131 | if(type==0) // TX |
| 132 | NiuDMABind.ResetTxBind(id,group_no); |
| 133 | else // RX |
| 134 | NiuDMABind.ResetRxBind(id,group_no); |
| 135 | |
| 136 | group_no = -1; |
| 137 | } |
| 138 | |
| 139 | |
| 140 | function bit[63:0] CDMA ::translate_address(bit[63:0] sw_address) |
| 141 | { |
| 142 | integer loop=0; |
| 143 | bit [31:0] mask_address; |
| 144 | |
| 145 | if(ring_lpvalid[0]) { |
| 146 | // first check Page0 |
| 147 | mask_address = sw_address[43:12] & ring_lpmask1; |
| 148 | if(mask_address == ring_lpvalue1) { |
| 149 | // translate the address |
| 150 | printf("Address within the Page0\n"); |
| 151 | translate_address[63:44] = ring_lphandle; |
| 152 | for(loop=0;loop<32;loop++) { |
| 153 | if(ring_lpmask1[loop]) |
| 154 | translate_address[12+loop] = ring_lprelo1[loop]; |
| 155 | else |
| 156 | translate_address[12+loop] = sw_address[12+loop]; |
| 157 | } |
| 158 | // translate_address[43:12] = ring_lprelo1 & ring_lpmask1; |
| 159 | translate_address[11:0] = sw_address[11:0]; |
| 160 | printf("The Trans_Address is %0h\n",translate_address); |
| 161 | } else { |
| 162 | printf("Page0 enabled, but Address not within Page0\n"); |
| 163 | // check for page1 |
| 164 | mask_address = sw_address[43:12] & ring_lpmask2; |
| 165 | if(mask_address == ring_lpvalue2) { |
| 166 | // translate the address |
| 167 | printf("Address within the Page1\n"); |
| 168 | translate_address[63:44] = ring_lphandle; |
| 169 | for(loop=0;loop<32;loop++) { |
| 170 | if(ring_lpmask2[loop]) |
| 171 | translate_address[12+loop] = ring_lprelo2[loop]; |
| 172 | else |
| 173 | translate_address[12+loop] = sw_address[12+loop]; |
| 174 | } |
| 175 | // translate_address[43:12] = ring_lprelo1 & ring_lpmask1; |
| 176 | translate_address[11:0] = sw_address[11:0]; |
| 177 | printf("The Trans_Address is %0h\n",translate_address); |
| 178 | } else { |
| 179 | printf("Page1 enabled, but Address not within Page1\n"); |
| 180 | translate_address = sw_address; |
| 181 | } |
| 182 | } |
| 183 | } else if(ring_lpvalid[1]) { |
| 184 | // check if the address is in Page1 |
| 185 | mask_address = sw_address[43:12] & ring_lpmask2; |
| 186 | if(mask_address == ring_lpvalue2) { |
| 187 | // translate the address |
| 188 | printf("Address within the Page1\n"); |
| 189 | translate_address[63:44] = ring_lphandle; |
| 190 | for(loop=0;loop<32;loop++) { |
| 191 | if(ring_lpmask2[loop]) |
| 192 | translate_address[12+loop] = ring_lprelo2[loop]; |
| 193 | else |
| 194 | translate_address[12+loop] = sw_address[12+loop]; |
| 195 | } |
| 196 | // translate_address[43:12] = ring_lprelo1 & ring_lpmask1; |
| 197 | translate_address[11:0] = sw_address[11:0]; |
| 198 | printf("The Trans_Address is %0h\n",translate_address); |
| 199 | } else { |
| 200 | printf("Page1 enabled, but Address not within Page1\n"); |
| 201 | translate_address = sw_address; |
| 202 | } |
| 203 | } else { |
| 204 | printf("Neither Page0 or Page1 is defined, Potenial SW_Error\n"); |
| 205 | translate_address = sw_address; |
| 206 | } |
| 207 | } |
| 208 | |
| 209 | |
| 210 | |