1 |
2 |
dmitryr |
// ========== Copyright Header Begin ==========================================
|
2 |
|
|
//
|
3 |
|
|
// OpenSPARC T1 Processor File: lsu_asi_decode.v
|
4 |
|
|
// Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved.
|
5 |
|
|
// DO NOT ALTER OR REMOVE COPYRIGHT NOTICES.
|
6 |
|
|
//
|
7 |
|
|
// The above named program is free software; you can redistribute it and/or
|
8 |
|
|
// modify it under the terms of the GNU General Public
|
9 |
|
|
// License version 2 as published by the Free Software Foundation.
|
10 |
|
|
//
|
11 |
|
|
// The above named program is distributed in the hope that it will be
|
12 |
|
|
// useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
|
13 |
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
14 |
|
|
// General Public License for more details.
|
15 |
|
|
//
|
16 |
|
|
// You should have received a copy of the GNU General Public
|
17 |
|
|
// License along with this work; if not, write to the Free Software
|
18 |
|
|
// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
|
19 |
|
|
//
|
20 |
|
|
// ========== Copyright Header End ============================================
|
21 |
|
|
////////////////////////////////////////////////////////////////////////
|
22 |
|
|
/*
|
23 |
|
|
// Description: ASI Decode for LSU
|
24 |
|
|
*/
|
25 |
|
|
////////////////////////////////////////////////////////////////////////
|
26 |
|
|
// Global header file includes
|
27 |
|
|
////////////////////////////////////////////////////////////////////////
|
28 |
|
|
`include "sys.h" // system level definition file which contains the
|
29 |
|
|
// time scale definition
|
30 |
|
|
|
31 |
|
|
////////////////////////////////////////////////////////////////////////
|
32 |
|
|
// Local header file includes / local defines
|
33 |
|
|
////////////////////////////////////////////////////////////////////////
|
34 |
|
|
|
35 |
|
|
module lsu_asi_decode (/*AUTOARG*/
|
36 |
|
|
// Outputs
|
37 |
|
|
asi_internal_d, nucleus_asi_d, primary_asi_d, secondary_asi_d,
|
38 |
|
|
lendian_asi_d, nofault_asi_d, quad_asi_d, binit_quad_asi_d,
|
39 |
|
|
dcache_byp_asi_d, tlb_lng_ltncy_asi_d, tlb_byp_asi_d,
|
40 |
|
|
as_if_user_asi_d, atomic_asi_d, blk_asi_d, dc_diagnstc_asi_d,
|
41 |
|
|
dtagv_diagnstc_asi_d, wr_only_asi_d, rd_only_asi_d, unimp_asi_d,
|
42 |
|
|
ifu_nontlb_asi_d, recognized_asi_d, ifill_tlb_asi_d,
|
43 |
|
|
dfill_tlb_asi_d, rd_only_ltlb_asi_d, wr_only_ltlb_asi_d,
|
44 |
|
|
phy_use_ec_asi_d, phy_byp_ec_asi_d, mmu_rd_only_asi_d,
|
45 |
|
|
intrpt_disp_asi_d, dmmu_asi58_d, immu_asi50_d,
|
46 |
|
|
// Inputs
|
47 |
|
|
asi_d
|
48 |
|
|
);
|
49 |
|
|
|
50 |
|
|
input [7:0] asi_d ;
|
51 |
|
|
output asi_internal_d ;
|
52 |
|
|
output nucleus_asi_d ;
|
53 |
|
|
output primary_asi_d ;
|
54 |
|
|
output secondary_asi_d ;
|
55 |
|
|
output lendian_asi_d ;
|
56 |
|
|
output nofault_asi_d ;
|
57 |
|
|
output quad_asi_d ;
|
58 |
|
|
output binit_quad_asi_d ;
|
59 |
|
|
output dcache_byp_asi_d ;
|
60 |
|
|
output tlb_lng_ltncy_asi_d ;
|
61 |
|
|
output tlb_byp_asi_d ;
|
62 |
|
|
output as_if_user_asi_d ;
|
63 |
|
|
output atomic_asi_d ;
|
64 |
|
|
output blk_asi_d ;
|
65 |
|
|
//output blk_cmt_asi_d ;
|
66 |
|
|
output dc_diagnstc_asi_d;
|
67 |
|
|
output dtagv_diagnstc_asi_d;
|
68 |
|
|
output wr_only_asi_d ;
|
69 |
|
|
output rd_only_asi_d ;
|
70 |
|
|
output unimp_asi_d ;
|
71 |
|
|
output ifu_nontlb_asi_d ; // non-tlb asi's in ifu
|
72 |
|
|
output recognized_asi_d ;
|
73 |
|
|
output ifill_tlb_asi_d ; // itlb fill asi
|
74 |
|
|
output dfill_tlb_asi_d ; // dtlb fill asi
|
75 |
|
|
output rd_only_ltlb_asi_d ; // read-only long-latency asi
|
76 |
|
|
output wr_only_ltlb_asi_d ; // write-only long-latency asi
|
77 |
|
|
output phy_use_ec_asi_d ;
|
78 |
|
|
output phy_byp_ec_asi_d ;
|
79 |
|
|
|
80 |
|
|
output mmu_rd_only_asi_d ; // does not include asi with va
|
81 |
|
|
output intrpt_disp_asi_d ;
|
82 |
|
|
output dmmu_asi58_d ;
|
83 |
|
|
output immu_asi50_d;
|
84 |
|
|
|
85 |
|
|
wire quad_ldd_real, quad_ldd_real_little ;
|
86 |
|
|
wire asi_if_user_prim_all_d,asi_if_user_sec_all_d ;
|
87 |
|
|
wire asi_if_user_prim_d,asi_if_user_sec_d ;
|
88 |
|
|
wire nucleus_asi_exact_d ;
|
89 |
|
|
wire prim_asi_exact_d ;
|
90 |
|
|
wire phy_use_ec_asi ;
|
91 |
|
|
wire phy_byp_ec_asi ;
|
92 |
|
|
wire sec_asi_exact_d ;
|
93 |
|
|
wire idemap,ddemap,ddata_in,ddaccess ;
|
94 |
|
|
wire dtag_read,idata_in,idaccess,invld_all,itag_read ;
|
95 |
|
|
wire blk_asif_usr_plittle, blk_asif_usr_slittle ;
|
96 |
|
|
wire blk_plittle, blk_slittle ;
|
97 |
|
|
wire blk_asif_usr_p, blk_asif_usr_s ;
|
98 |
|
|
wire blk_cmt_p, blk_cmt_s;
|
99 |
|
|
wire blk_p, blk_s ;
|
100 |
|
|
wire binit_nucleus_d, binit_nucleus_little_d ;
|
101 |
|
|
wire real_mem_little,real_io_little ;
|
102 |
|
|
wire unimp_CD_prm;
|
103 |
|
|
wire unimp_CD_sec;
|
104 |
|
|
|
105 |
|
|
// Start decode in d-stage. Required late e-stage. The logic could
|
106 |
|
|
// be moved to the e-stage to save staging flops.
|
107 |
|
|
|
108 |
|
|
wire dtsb_8k_ptr, dtsb_64k_ptr, dtsb_dir_ptr;
|
109 |
|
|
wire itsb_8k_ptr, itsb_64k_ptr;
|
110 |
|
|
assign dtsb_8k_ptr = (asi_d[7:0] == 8'h59) ;
|
111 |
|
|
assign dtsb_64k_ptr = (asi_d[7:0] == 8'h5A) ;
|
112 |
|
|
assign dtsb_dir_ptr = (asi_d[7:0] == 8'h5B) ;
|
113 |
|
|
assign itsb_8k_ptr = (asi_d[7:0] == 8'h51) ;
|
114 |
|
|
assign itsb_64k_ptr = (asi_d[7:0] == 8'h52) ;
|
115 |
|
|
|
116 |
|
|
assign mmu_rd_only_asi_d =
|
117 |
|
|
dtsb_8k_ptr | dtsb_64k_ptr | dtsb_dir_ptr | itsb_8k_ptr | itsb_64k_ptr ;
|
118 |
|
|
|
119 |
|
|
assign intrpt_disp_asi_d = (asi_d[7:0] == 8'h73) ; // INTR_W
|
120 |
|
|
|
121 |
|
|
assign dmmu_asi58_d = (asi_d[7:0] == 8'h58) ;
|
122 |
|
|
assign immu_asi50_d = (asi_d[7:0] == 8'h50) ;
|
123 |
|
|
|
124 |
|
|
// ASI Internal Registers - switches out thread among other things
|
125 |
|
|
assign asi_internal_d =
|
126 |
|
|
(asi_d[7:0] == 8'h40) | // streaming/ma
|
127 |
|
|
(asi_d[7:0] == 8'h45) | // LSU Control
|
128 |
|
|
(asi_d[7:0] == 8'h50) | // I-TSB Tag Target/SFSR/TSB/Tag-Access
|
129 |
|
|
itsb_8k_ptr | // I-TSB 8K Ptr
|
130 |
|
|
itsb_64k_ptr | // I-TSB 64K Ptr
|
131 |
|
|
dmmu_asi58_d |
|
132 |
|
|
//(asi_d[7:0] == 8'h58) | // D-TSB Tag Target/SFSR/SFAR/TSB/Tag-Access/VA-PA-Watchpt
|
133 |
|
|
(asi_d[7:0] == 8'h21) | // Primary/Secondary Context
|
134 |
|
|
(asi_d[7:0] == 8'h20) | // Scratchpad.
|
135 |
|
|
(asi_d[7:0] == 8'h25) | // Queue
|
136 |
|
|
(asi_d[7:0] == 8'h4F) | // Hyp Scratchpad
|
137 |
|
|
dtsb_8k_ptr | // D-TSB 8K Ptr
|
138 |
|
|
dtsb_64k_ptr | // D-TSB 64K Ptr
|
139 |
|
|
dtsb_dir_ptr | // D-TSB Direct Ptr
|
140 |
|
|
(asi_d[7:0] == 8'h72) | // INTR_RECEIVE
|
141 |
|
|
intrpt_disp_asi_d | // INTR_W
|
142 |
|
|
(asi_d[7:0] == 8'h74) | // INTR_R
|
143 |
|
|
(asi_d[7:0] == 8'h44) | // Self-Timed Margin Ctl
|
144 |
|
|
(asi_d[7:0] == 8'h31) | // dmmu_zctxt_ps0_tsb
|
145 |
|
|
(asi_d[7:0] == 8'h32) | // dmmu_zctxt_ps1_tsb
|
146 |
|
|
(asi_d[7:0] == 8'h39) | // dmmu_nzctxt_ps0_tsb
|
147 |
|
|
(asi_d[7:0] == 8'h3A) | // dmmu_nzctxt_ps1_tsb
|
148 |
|
|
(asi_d[7:0] == 8'h33) | // dmmu_zctxt_cfg_tsb
|
149 |
|
|
(asi_d[7:0] == 8'h3B) | // dmmu_nzctxt_cfg_tsb
|
150 |
|
|
(asi_d[7:0] == 8'h35) | // immu_zctxt_ps0_tsb
|
151 |
|
|
(asi_d[7:0] == 8'h36) | // immu_zctxt_ps1_tsb
|
152 |
|
|
(asi_d[7:0] == 8'h3D) | // immu_nzctxt_ps0_tsb
|
153 |
|
|
(asi_d[7:0] == 8'h3E) | // immu_nzctxt_ps1_tsb
|
154 |
|
|
(asi_d[7:0] == 8'h37) | // immu_zctxt_cfg_tsb
|
155 |
|
|
(asi_d[7:0] == 8'h3F) | // immu_nzctxt_cfg_tsb
|
156 |
|
|
dc_diagnstc_asi_d | // Dcache Diagnostic
|
157 |
|
|
dtagv_diagnstc_asi_d | // Dcache Diagnostic
|
158 |
|
|
tlb_lng_ltncy_asi_d |
|
159 |
|
|
ifu_nontlb_asi_d ;
|
160 |
|
|
|
161 |
|
|
assign ifu_nontlb_asi_d =
|
162 |
|
|
(asi_d[7:0] == 8'h42) | // instruction-mask
|
163 |
|
|
(asi_d[7:0] == 8'h43) | // error-inj
|
164 |
|
|
(asi_d[7:0] == 8'h4B) | // sparc-error-enable
|
165 |
|
|
(asi_d[7:0] == 8'h4C) | // sparc-error-status
|
166 |
|
|
(asi_d[7:0] == 8'h4D) | // sparc-error-address
|
167 |
|
|
(asi_d[7:0] == 8'h66) | // icache-instr
|
168 |
|
|
(asi_d[7:0] == 8'h67) ; // icache-tag
|
169 |
|
|
|
170 |
|
|
assign dc_diagnstc_asi_d = (asi_d[7:0] == 8'h46) ;
|
171 |
|
|
assign dtagv_diagnstc_asi_d = (asi_d[7:0] == 8'h47) ;
|
172 |
|
|
|
173 |
|
|
assign idemap = (asi_d[7:0] == 8'h57) ; // I-MMU Demap Operation
|
174 |
|
|
assign ddemap = (asi_d[7:0] == 8'h5F) ; // D-MMU Demap Operation
|
175 |
|
|
assign ddata_in = (asi_d[7:0] == 8'h5C) ; // D-TLB Data-In
|
176 |
|
|
assign ddaccess = (asi_d[7:0] == 8'h5D) ; // D-TLB Data-Access
|
177 |
|
|
assign dtag_read = (asi_d[7:0] == 8'h5E) ; // D-TLB Tag Read
|
178 |
|
|
assign idata_in = (asi_d[7:0] == 8'h54) ; // I-TLB Data-In
|
179 |
|
|
assign idaccess = (asi_d[7:0] == 8'h55) ; // I-TLB Data-Access
|
180 |
|
|
assign invld_all = (asi_d[7:0] == 8'h60) ; // I/D Invalidate All
|
181 |
|
|
assign itag_read = (asi_d[7:0] == 8'h56) ; // I-TLB Tag Read
|
182 |
|
|
|
183 |
|
|
assign tlb_lng_ltncy_asi_d =
|
184 |
|
|
idemap | ddemap | ddata_in |
|
185 |
|
|
ddaccess | dtag_read | idata_in |
|
186 |
|
|
idaccess | invld_all | itag_read ;
|
187 |
|
|
|
188 |
|
|
assign wr_only_ltlb_asi_d =
|
189 |
|
|
ddata_in | idata_in |
|
190 |
|
|
idemap | ddemap |
|
191 |
|
|
invld_all ;
|
192 |
|
|
|
193 |
|
|
assign rd_only_ltlb_asi_d =
|
194 |
|
|
dtag_read | itag_read ;
|
195 |
|
|
|
196 |
|
|
assign ifill_tlb_asi_d = // itlb fill asi
|
197 |
|
|
idata_in | idaccess ;
|
198 |
|
|
|
199 |
|
|
assign dfill_tlb_asi_d = // i/d tlb fill asi
|
200 |
|
|
ddata_in | ddaccess ;
|
201 |
|
|
|
202 |
|
|
assign nucleus_asi_exact_d =
|
203 |
|
|
(asi_d[7:0] == 8'h04) | // asi_nucleus
|
204 |
|
|
(asi_d[7:0] == 8'h0C) ; // asi_nucleus_little
|
205 |
|
|
|
206 |
|
|
// Nucleus Ctxt
|
207 |
|
|
assign nucleus_asi_d =
|
208 |
|
|
nucleus_asi_exact_d |
|
209 |
|
|
(asi_d[7:0] == 8'h24) | // asi_nucleus_quad_ldd
|
210 |
|
|
(asi_d[7:0] == 8'h2C) ; // asi_nucleus_quad_ldd_little
|
211 |
|
|
|
212 |
|
|
assign asi_if_user_prim_d =
|
213 |
|
|
(asi_d[7:0] == 8'h10) | // asi_as_if_user_primary
|
214 |
|
|
(asi_d[7:0] == 8'h18) ; // asi_as_if_user_primary_little
|
215 |
|
|
|
216 |
|
|
// asi_if_user primary asi
|
217 |
|
|
assign asi_if_user_prim_all_d =
|
218 |
|
|
asi_if_user_prim_d |
|
219 |
|
|
(asi_d[7:0] == 8'h22) | // asi_as_if_user_primary_quad_ldd (blk-init)
|
220 |
|
|
(asi_d[7:0] == 8'h2A) ; // asi_as_if_user_primary_quad_ldd_little (blk-init)
|
221 |
|
|
|
222 |
|
|
assign prim_asi_exact_d =
|
223 |
|
|
(asi_d[7:0] == 8'h80) | // asi_primary
|
224 |
|
|
(asi_d[7:0] == 8'h88) ; // asi_primary_little
|
225 |
|
|
|
226 |
|
|
// Primary Ctxt
|
227 |
|
|
assign primary_asi_d =
|
228 |
|
|
asi_if_user_prim_all_d |
|
229 |
|
|
prim_asi_exact_d |
|
230 |
|
|
(asi_d[7:0] == 8'h82) | // asi_primary_no_fault
|
231 |
|
|
(asi_d[7:0] == 8'h8A) | // asi_primary_no_fault_little
|
232 |
|
|
(asi_d[7:0] == 8'hE2) | // asi_primary_quad_ldd (blk-init)
|
233 |
|
|
(asi_d[7:0] == 8'hEA) | // asi_primary_quad_ldd_little (blk-init)
|
234 |
|
|
blk_asif_usr_p | blk_asif_usr_plittle |
|
235 |
|
|
blk_plittle | blk_p | // block primary asi
|
236 |
|
|
blk_cmt_p | // Bug 4051
|
237 |
|
|
unimp_CD_prm ; // Bug 4532
|
238 |
|
|
|
239 |
|
|
assign asi_if_user_sec_d =
|
240 |
|
|
(asi_d[7:0] == 8'h11) | // asi_as_if_user_secondary
|
241 |
|
|
(asi_d[7:0] == 8'h19) ; // asi_as_if_user_secondary_little
|
242 |
|
|
|
243 |
|
|
// asi_if_user secondary asi
|
244 |
|
|
assign asi_if_user_sec_all_d =
|
245 |
|
|
asi_if_user_sec_d |
|
246 |
|
|
(asi_d[7:0] == 8'h23) | // asi_as_if_user_secondary_quad_ldd (blk-init)
|
247 |
|
|
(asi_d[7:0] == 8'h2B) ; // asi_as_if_user_secondary_quad_ldd_little (blk-init)
|
248 |
|
|
|
249 |
|
|
assign as_if_user_asi_d = asi_if_user_prim_all_d | asi_if_user_sec_all_d |
|
250 |
|
|
blk_asif_usr_p | blk_asif_usr_plittle | blk_asif_usr_s | blk_asif_usr_slittle ;
|
251 |
|
|
|
252 |
|
|
assign sec_asi_exact_d =
|
253 |
|
|
(asi_d[7:0] == 8'h81) | // asi_secondary
|
254 |
|
|
(asi_d[7:0] == 8'h89) ; // asi_secondary_little
|
255 |
|
|
|
256 |
|
|
// Secondary Ctxt
|
257 |
|
|
assign secondary_asi_d =
|
258 |
|
|
asi_if_user_sec_all_d |
|
259 |
|
|
sec_asi_exact_d |
|
260 |
|
|
(asi_d[7:0] == 8'h83) | // asi_secondary_no_fault
|
261 |
|
|
(asi_d[7:0] == 8'h8B) | // asi_secondary_no_fault_little
|
262 |
|
|
(asi_d[7:0] == 8'hE3) | // asi_secondary_quad_ldd (blk-init)
|
263 |
|
|
(asi_d[7:0] == 8'hEB) | // asi_secondary_quad_ldd_little (blk-init)
|
264 |
|
|
blk_asif_usr_s | blk_asif_usr_slittle |
|
265 |
|
|
blk_slittle | blk_s | // block secondary asi
|
266 |
|
|
blk_cmt_s | // Bug 4051
|
267 |
|
|
unimp_CD_sec; // Bug 4532
|
268 |
|
|
|
269 |
|
|
// Little Endian
|
270 |
|
|
assign lendian_asi_d =
|
271 |
|
|
(asi_d[7:0] == 8'h0C) | // asi_nucleus_little
|
272 |
|
|
(asi_d[7:0] == 8'h2C) | // asi_nucleus_quad_ldd_little
|
273 |
|
|
(asi_d[7:0] == 8'h18) | // asi_as_if_user_primary_little
|
274 |
|
|
(asi_d[7:0] == 8'h8A) | // asi_primary_no_fault_little
|
275 |
|
|
(asi_d[7:0] == 8'h8B) | // asi_secondary_no_fault_little
|
276 |
|
|
(asi_d[7:0] == 8'h2A) | // asi_as_if_user_primary_quad_ldd_little (blk-init)
|
277 |
|
|
(asi_d[7:0] == 8'hEA) | // asi_primary_quad_ldd_little (blk-init)
|
278 |
|
|
(asi_d[7:0] == 8'h19) | // asi_as_if_user_secondary_little
|
279 |
|
|
(asi_d[7:0] == 8'h89) | // asi_secondary_little
|
280 |
|
|
(asi_d[7:0] == 8'h88) | // asi_primary_little
|
281 |
|
|
(asi_d[7:0] == 8'h2B) | // asi_as_if_user_secondary_quad_ldd_little (blk-init)
|
282 |
|
|
(asi_d[7:0] == 8'hEB) | // asi_secondary_quad_ldd_little (blk-init)
|
283 |
|
|
real_mem_little |
|
284 |
|
|
real_io_little |
|
285 |
|
|
//(asi_d[7:0] == 8'h1D) | // asi_phys_bypass_ec_with_ebit_littl
|
286 |
|
|
//(asi_d[7:0] == 8'h1C) | // asi_phys_bypass_ec_with_ebit_littl
|
287 |
|
|
blk_asif_usr_plittle | blk_asif_usr_slittle | // little
|
288 |
|
|
blk_plittle | blk_slittle | // little
|
289 |
|
|
quad_ldd_real_little | // asi_quad_ldd_real_little
|
290 |
|
|
binit_nucleus_little_d ;// asi_nucleus_blk_init_st_quad_ldd_little
|
291 |
|
|
|
292 |
|
|
// No Fault
|
293 |
|
|
assign nofault_asi_d =
|
294 |
|
|
(asi_d[7:0] == 8'h82) | // asi_primary_no_fault
|
295 |
|
|
(asi_d[7:0] == 8'h8A) | // asi_primary_no_fault_little
|
296 |
|
|
(asi_d[7:0] == 8'h83) | // asi_secondary_no_fault
|
297 |
|
|
(asi_d[7:0] == 8'h8B) ; // asi_secondary_no_fault_little
|
298 |
|
|
|
299 |
|
|
assign binit_nucleus_d =
|
300 |
|
|
(asi_d[7:0] == 8'h27) ; // asi_nucleus_blk_init_st_quad_ldd
|
301 |
|
|
assign binit_nucleus_little_d =
|
302 |
|
|
(asi_d[7:0] == 8'h2F) ; // asi_nucleus_blk_init_st_quad_ldd_little
|
303 |
|
|
|
304 |
|
|
// Quad (These are duplicated - they can be shared)
|
305 |
|
|
assign binit_quad_asi_d =
|
306 |
|
|
binit_nucleus_d | // asi_nucleus_blk_init_st_quad_ldd
|
307 |
|
|
binit_nucleus_little_d |// asi_nucleus_blk_init_st_quad_ldd_little
|
308 |
|
|
(asi_d[7:0] == 8'h22) | // asi_as_if_user_primary_quad_ldd (blk-init)
|
309 |
|
|
(asi_d[7:0] == 8'h2A) | // asi_as_if_user_primary_quad_ldd_little (blk-init)
|
310 |
|
|
(asi_d[7:0] == 8'h23) | // asi_as_if_user_secondary_quad_ldd (blk-init)
|
311 |
|
|
(asi_d[7:0] == 8'h2B) | // asi_as_if_user_secondary_quad_ldd_little (blk-init)
|
312 |
|
|
(asi_d[7:0] == 8'hE2) | // asi_primary_quad_ldd (blk-init)
|
313 |
|
|
(asi_d[7:0] == 8'hEA) | // asi_primary_quad_ldd_little (blk-init)
|
314 |
|
|
(asi_d[7:0] == 8'hE3) | // asi_secondary_quad_ldd (blk-init)
|
315 |
|
|
(asi_d[7:0] == 8'hEB) ; // asi_secondary_quad_ldd_little (blk-init)
|
316 |
|
|
|
317 |
|
|
assign quad_ldd_real =
|
318 |
|
|
(asi_d[7:0] == 8'h26) ; // asi_quad_ldd_real
|
319 |
|
|
assign quad_ldd_real_little =
|
320 |
|
|
(asi_d[7:0] == 8'h2E) ; // asi_quad_ldd_real_little
|
321 |
|
|
|
322 |
|
|
assign quad_asi_d =
|
323 |
|
|
binit_quad_asi_d | // blk-init quad asi
|
324 |
|
|
quad_ldd_real | // asi_quad_ldd_real
|
325 |
|
|
quad_ldd_real_little | // asi_quad_ldd_real_little
|
326 |
|
|
(asi_d[7:0] == 8'h24) | // asi_nucleus_quad_ldd
|
327 |
|
|
(asi_d[7:0] == 8'h2C) ; // asi_nucleus_quad_ldd_little
|
328 |
|
|
|
329 |
|
|
// EC
|
330 |
|
|
assign real_io_little = (asi_d[7:0] == 8'h1D) ;
|
331 |
|
|
assign real_mem_little = (asi_d[7:0] == 8'h1C) ;
|
332 |
|
|
|
333 |
|
|
assign phy_byp_ec_asi =
|
334 |
|
|
(asi_d[7:0] == 8'h15) | // asi_phys_bypass_ec_with_ebit(real_io)
|
335 |
|
|
real_io_little ; // asi_phys_bypass_ec_with_ebit_little(real_io_little)
|
336 |
|
|
//(asi_d[7:0] == 8'h1D) ; // asi_phys_bypass_ec_with_ebit_little(real_io_little)
|
337 |
|
|
// asi assumed for io address specifically !!
|
338 |
|
|
// asi assumed for io address specifically !!
|
339 |
|
|
|
340 |
|
|
assign phy_use_ec_asi =
|
341 |
|
|
(asi_d[7:0] == 8'h14) | // asi_phys_use_ec(real_mem)
|
342 |
|
|
real_mem_little ; // asi_phys_use_ec_little(real_mem_little)
|
343 |
|
|
//(asi_d[7:0] == 8'h1C) ; // asi_phys_use_ec_little(real_mem_little)
|
344 |
|
|
|
345 |
|
|
assign phy_use_ec_asi_d = phy_use_ec_asi ;
|
346 |
|
|
assign phy_byp_ec_asi_d = phy_byp_ec_asi ;
|
347 |
|
|
|
348 |
|
|
// Physical Use - Always results in R->P xslation.
|
349 |
|
|
assign tlb_byp_asi_d =
|
350 |
|
|
phy_byp_ec_asi | phy_use_ec_asi |
|
351 |
|
|
quad_ldd_real | quad_ldd_real_little ;
|
352 |
|
|
|
353 |
|
|
// Atomic asi
|
354 |
|
|
assign atomic_asi_d = nucleus_asi_exact_d | prim_asi_exact_d | sec_asi_exact_d |
|
355 |
|
|
asi_if_user_prim_d | asi_if_user_sec_d | phy_use_ec_asi ;
|
356 |
|
|
|
357 |
|
|
assign dcache_byp_asi_d = tlb_byp_asi_d ;
|
358 |
|
|
|
359 |
|
|
// ASI causing Data Access Exceptions - (TBD)
|
360 |
|
|
|
361 |
|
|
assign rd_only_asi_d =
|
362 |
|
|
(asi_d[7:0] == 8'h82) | // asi_primary_no_fault
|
363 |
|
|
(asi_d[7:0] == 8'h8A) | // asi_primary_no_fault_little
|
364 |
|
|
(asi_d[7:0] == 8'h83) | // asi_secondary_no_fault
|
365 |
|
|
(asi_d[7:0] == 8'h8B) | // asi_secondary_no_fault_little
|
366 |
|
|
(asi_d[7:0] == 8'h74) ; // asi_swrvr_udb_intr_r !! Does not have to be done by intrpt blk !!
|
367 |
|
|
|
368 |
|
|
assign wr_only_asi_d =
|
369 |
|
|
(asi_d[7:0] == 8'h73) ; // asi_swrvr_udb_intr_w
|
370 |
|
|
|
371 |
|
|
// Block Asi
|
372 |
|
|
assign blk_asif_usr_p = (asi_d[7:0] == 8'h16) ; // asi_block_as_if_user_primary
|
373 |
|
|
assign blk_asif_usr_plittle = (asi_d[7:0] == 8'h1E) ; // asi_block_as_if_user_primary_little
|
374 |
|
|
assign blk_asif_usr_s = (asi_d[7:0] == 8'h17) ; // asi_block_as_if_user_secondary
|
375 |
|
|
assign blk_asif_usr_slittle = (asi_d[7:0] == 8'h1F) ; // asi_block_as_if_user_secondary_little
|
376 |
|
|
assign blk_plittle = (asi_d[7:0] == 8'hF8) ; // asi_block_primary_little
|
377 |
|
|
assign blk_slittle = (asi_d[7:0] == 8'hF9) ; // asi_block_secondary_little
|
378 |
|
|
assign blk_cmt_p = (asi_d[7:0] == 8'hE0) ; // asi_block_commit_primary ?? behaviour
|
379 |
|
|
assign blk_cmt_s = (asi_d[7:0] == 8'hE1) ; // asi_block_commit_secondary ?? behaviour
|
380 |
|
|
assign blk_p = (asi_d[7:0] == 8'hF0) ; // asi_block_primary
|
381 |
|
|
assign blk_s = (asi_d[7:0] == 8'hF1) ; // asi_block_secondary
|
382 |
|
|
|
383 |
|
|
//assign blk_cmt_asi_d = blk_cmt_p | blk_cmt_s ;
|
384 |
|
|
|
385 |
|
|
assign blk_asi_d =
|
386 |
|
|
blk_asif_usr_p | blk_asif_usr_s |
|
387 |
|
|
blk_plittle | blk_slittle |
|
388 |
|
|
//blk_cmt_p | blk_cmt_s |
|
389 |
|
|
blk_p | blk_s |
|
390 |
|
|
blk_asif_usr_plittle | blk_asif_usr_slittle | // little
|
391 |
|
|
blk_plittle | blk_slittle ; // little
|
392 |
|
|
|
393 |
|
|
// add to little-endian decode
|
394 |
|
|
// add to use_real ...
|
395 |
|
|
//assign as_if_supv =
|
396 |
|
|
// (asi_d[7:0] == 8'h??) | // asi_if_supv_real
|
397 |
|
|
// (asi_d[7:0] == 8'h??) ; // asi_if_supv_real_little
|
398 |
|
|
|
399 |
|
|
wire unimp_C ;
|
400 |
|
|
assign unimp_C =
|
401 |
|
|
((asi_d[7:4]==4'hC) &
|
402 |
|
|
~((asi_d[3:0]==4'h6) |
|
403 |
|
|
(asi_d[3:0]==4'h7) |
|
404 |
|
|
(asi_d[3:0]==4'hE) |
|
405 |
|
|
(asi_d[3:0]==4'hF))) ;
|
406 |
|
|
|
407 |
|
|
wire unimp_D ;
|
408 |
|
|
assign unimp_D =
|
409 |
|
|
((asi_d[7:4]==4'hD) &
|
410 |
|
|
~((asi_d[3:0]==4'h4) |
|
411 |
|
|
(asi_d[3:0]==4'h5) |
|
412 |
|
|
(asi_d[3:0]==4'h6) |
|
413 |
|
|
(asi_d[3:0]==4'h7) |
|
414 |
|
|
(asi_d[3:0]==4'hC) |
|
415 |
|
|
(asi_d[3:0]==4'hD) |
|
416 |
|
|
(asi_d[3:0]==4'hE) |
|
417 |
|
|
(asi_d[3:0]==4'hF))) ;
|
418 |
|
|
|
419 |
|
|
assign unimp_CD_prm =
|
420 |
|
|
(asi_d[7:0] == 8'hC0) |
|
421 |
|
|
(asi_d[7:0] == 8'hC2) |
|
422 |
|
|
(asi_d[7:0] == 8'hC4) |
|
423 |
|
|
(asi_d[7:0] == 8'hC8) |
|
424 |
|
|
(asi_d[7:0] == 8'hCA) |
|
425 |
|
|
(asi_d[7:0] == 8'hCC) |
|
426 |
|
|
(asi_d[7:0] == 8'hD0) |
|
427 |
|
|
(asi_d[7:0] == 8'hD2) |
|
428 |
|
|
(asi_d[7:0] == 8'hD8) |
|
429 |
|
|
(asi_d[7:0] == 8'hDA) ;
|
430 |
|
|
|
431 |
|
|
assign unimp_CD_sec =
|
432 |
|
|
(asi_d[7:0] == 8'hC1) |
|
433 |
|
|
(asi_d[7:0] == 8'hC3) |
|
434 |
|
|
(asi_d[7:0] == 8'hC5) |
|
435 |
|
|
(asi_d[7:0] == 8'hC9) |
|
436 |
|
|
(asi_d[7:0] == 8'hCB) |
|
437 |
|
|
(asi_d[7:0] == 8'hCD) |
|
438 |
|
|
(asi_d[7:0] == 8'hD1) |
|
439 |
|
|
(asi_d[7:0] == 8'hD3) |
|
440 |
|
|
(asi_d[7:0] == 8'hD9) |
|
441 |
|
|
(asi_d[7:0] == 8'hDB) ;
|
442 |
|
|
|
443 |
|
|
|
444 |
|
|
// Unimplemented asi
|
445 |
|
|
assign unimp_asi_d =
|
446 |
|
|
// Bug 4692 - all unimplemented internal asi are now
|
447 |
|
|
// illegal.
|
448 |
|
|
// (asi_d[7:0] == 8'h6E) | // asi_icache_pre_decode
|
449 |
|
|
// (asi_d[7:0] == 8'h6F) | // asi_icache_next_field
|
450 |
|
|
// (asi_d[7:0] == 8'h48) | // asi_intr_dispatch_status
|
451 |
|
|
// (asi_d[7:0] == 8'h49) | // asi_intr_receive
|
452 |
|
|
// (asi_d[7:0] == 8'h4A) | // asi_upa_config_register
|
453 |
|
|
// (asi_d[7:0] == 8'h4E) | // asi_ecache_tag_data
|
454 |
|
|
// dflush_asi_d | //Bug 4580
|
455 |
|
|
unimp_C | unimp_D | // Bug 4438
|
456 |
|
|
blk_cmt_p | blk_cmt_s ;
|
457 |
|
|
|
458 |
|
|
// Set of recognized asi's
|
459 |
|
|
assign recognized_asi_d =
|
460 |
|
|
asi_internal_d | nucleus_asi_d | primary_asi_d | secondary_asi_d | lendian_asi_d |
|
461 |
|
|
nofault_asi_d | quad_asi_d | tlb_byp_asi_d | unimp_asi_d | blk_asi_d ;
|
462 |
|
|
|
463 |
|
|
// Displacement Flush for L2
|
464 |
|
|
//assign dflush_asi_d =
|
465 |
|
|
// (asi_d[7:0] == 8'h30) ; // asi_direct_map_ecache
|
466 |
|
|
|
467 |
|
|
endmodule
|