Unified Coverage Report :: Module :: tlul_lc_gate

Module : tlul_lc_gate

SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT
85.83	100.00	83.33		100.00	95.83	50.00

Source File(s) :
/workspaces/repo/scratch/os_regression_2024_08_24/rv_dm-sim-vcs/default/sim-vcs/../src/lowrisc_tlul_lc_gate_0.1/rtl/tlul_lc_gate.sv

Module self-instances :

NAME	SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT
tb.dut.u_tlul_lc_gate_sba	78.91	86.27	76.47		100.00	81.82	50.00
tb.dut.u_tlul_lc_gate_rom	87.88	100.00	93.75		100.00	95.65	50.00

---

Module Instance : tb.dut.u_tlul_lc_gate_sba

Instance :

SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT
78.91	86.27	76.47		100.00	81.82	50.00

Instance's subtree :

SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT
90.53	94.49	84.00		100.00	86.67	87.50

Parent :

SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT	NAME
97.61	100.00	90.48	97.60		100.00	100.00	dut

Subtrees :

NAME	SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT
gen_lc_gating_muxes[0].u_prim_blanker_d2h	100.00	100.00
gen_lc_gating_muxes[0].u_prim_blanker_h2d	100.00	100.00
gen_lc_gating_muxes[1].u_prim_blanker_d2h	100.00	100.00
gen_lc_gating_muxes[1].u_prim_blanker_h2d	100.00	100.00
u_err_en_sync	100.00	100.00					100.00
u_state_regs	100.00	100.00				100.00	100.00
u_tlul_err_resp	100.00	100.00	100.00			100.00	100.00

---

Module Instance : tb.dut.u_tlul_lc_gate_rom

Instance :

SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT
87.88	100.00	93.75		100.00	95.65	50.00

Instance's subtree :

SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT
96.09	100.00	96.15		100.00	96.77	87.50

Parent :

SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT	NAME
97.61	100.00	90.48	97.60		100.00	100.00	dut

Subtrees :

NAME	SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT
gen_lc_gating_muxes[0].u_prim_blanker_d2h	100.00	100.00
gen_lc_gating_muxes[0].u_prim_blanker_h2d	100.00	100.00
gen_lc_gating_muxes[1].u_prim_blanker_d2h	100.00	100.00
gen_lc_gating_muxes[1].u_prim_blanker_h2d	100.00	100.00
u_err_en_sync	100.00	100.00					100.00
u_state_regs	100.00	100.00				100.00	100.00
u_tlul_err_resp	100.00	100.00	100.00			100.00	100.00

Line Coverage for Module : tlul_lc_gate

	Line No.	Total	Covered	Percent
TOTAL		51	51	100.00
CONT_ASSIGN	84	1	1	100.00
CONT_ASSIGN	85	1	1	100.00
ALWAYS	144	3	3	100.00
CONT_ASSIGN	149	1	1	100.00
CONT_ASSIGN	150	1	1	100.00
ALWAYS	153	6	6	100.00
ALWAYS	164	28	28	100.00
ALWAYS	230	10	10	100.00

83                        // Assign signals on the device side.
84         1/1            assign tl_h2d_o = tl_h2d_int[NumGatesPerDirection];
           Tests:       T1 T2 T3 
85         1/1            assign tl_d2h_int[NumGatesPerDirection] = tl_d2h_i;
           Tests:       T1 T2 T3 
86                      
87                        ///////////////////////////
88                        // Host Side Interposing //
89                        ///////////////////////////
90                      
91                        // Encoding generated with:
92                        // $ ./util/design/sparse-fsm-encode.py -d 5 -m 4 -n 8 \
93                        //      -s 3379253306 --language=sv
94                        //
95                        // Hamming distance histogram:
96                        //
97                        //  0: --
98                        //  1: --
99                        //  2: --
100                       //  3: --
101                       //  4: --
102                       //  5: |||||||||||||||||||| (66.67%)
103                       //  6: |||||||||| (33.33%)
104                       //  7: --
105                       //  8: --
106                       //
107                       // Minimum Hamming distance: 5
108                       // Maximum Hamming distance: 6
109                       // Minimum Hamming weight: 3
110                       // Maximum Hamming weight: 5
111                       //
112                       // Encoding generated with:
113                       // $ ./util/design/sparse-fsm-encode.py -d 5 -m 5 -n 9 \
114                       //      -s 686407169 --language=sv
115                       //
116                       // Hamming distance histogram:
117                       //
118                       //  0: --
119                       //  1: --
120                       //  2: --
121                       //  3: --
122                       //  4: --
123                       //  5: |||||||||||||||||||| (60.00%)
124                       //  6: ||||||||||||| (40.00%)
125                       //  7: --
126                       //  8: --
127                       //  9: --
128                       //
129                       // Minimum Hamming distance: 5
130                       // Maximum Hamming distance: 6
131                       // Minimum Hamming weight: 3
132                       // Maximum Hamming weight: 6
133                       //
134                       localparam int StateWidth = 9;
135                       typedef enum logic [StateWidth-1:0] {
136                         StActive = 9'b100100001,
137                         StOutstanding = 9'b011100111,
138                         StFlush = 9'b001001100,
139                         StError = 9'b010111010,
140                         StErrorOutstanding = 9'b100010110
141                       } state_e;
142                     
143                       state_e state_d, state_q;
144        3/3            `PRIM_FLOP_SPARSE_FSM(u_state_regs, state_d, state_q, state_e, StError)
           Tests:       T1 T2 T3  | T1 T2 T3  | T1 T2 T3 
PRIM_FLOP_SPARSE_FSM(u_state_regs, state_d, state_q, state_e, StError):
144.1                   `ifdef SIMULATION                                   
144.2                       prim_sparse_fsm_flop #(                           
144.3                         .StateEnumT(state_e),                            
144.4                         .Width($bits(state_e)),                          
144.5                         .ResetValue($bits(state_e)'(StError)),          
144.6                         .EnableAlertTriggerSVA(1), 
144.7                         .CustomForceName("state_q")          
144.8                       ) u_state_regs (                                        
144.9                         .clk_i   ( clk_i   ),                           
144.10                        .rst_ni  ( rst_ni ),                           
144.11                        .state_i ( state_d     ),                           
144.12                        .state_o (         )                            
144.13                      );                                                
144.14                      always_ff @(posedge clk_i or negedge rst_ni) begin 
144.15     1/1              if (!rst_ni) begin                               
           Tests:       T1 T2 T3 
144.16     1/1                state_q <= StError;                                
           Tests:       T1 T2 T3 
144.17                      end else begin                                    
144.18     1/1                state_q <= state_d;                                     
           Tests:       T1 T2 T3 
144.19                      end                                               
144.20                    end  
144.21                      u_state_regs_A: assert property (@(posedge clk_i) disable iff ((!rst_ni) !== '0) (state_q === u_state_regs.state_o))       
144.22                      else begin                                                                           
144.23                        `ifdef UVM                                                                               
144.24                    uvm_pkg::uvm_report_error("ASSERT FAILED", "u_state_regs_A", uvm_pkg::UVM_NONE, 
144.25                                              "../src/lowrisc_tlul_lc_gate_0.1/rtl/tlul_lc_gate.sv", 144, "", 1);                                
144.26                  `else                                                                                    
144.27                    $error("%0t: (%0s:%0d) [%m] [ASSERT FAILED] %0s", $time, `__FILE__, `__LINE__,         
144.28                           `PRIM_STRINGIFY(u_state_regs_A));                                                       
144.29                  `endif                                                              
144.30                      end 
144.31                    `else                                               
144.32                      prim_sparse_fsm_flop #(                           
144.33                        .StateEnumT(state_e),                            
144.34                        .Width($bits(state_e)),                          
144.35                        .ResetValue($bits(state_e)'(StError)),          
144.36                        .EnableAlertTriggerSVA(1)  
144.37                      ) u_state_regs (                                        
144.38                        .clk_i   ( `PRIM_FLOP_CLK   ),                           
144.39                        .rst_ni  ( `PRIM_FLOP_RST ),                           
144.40                        .state_i ( state_d     ),                           
144.41                        .state_o ( state_q     )                            
144.42                      );                                                
144.43                    `endif145                     
146                       logic [1:0] outstanding_txn;
147                       logic a_ack;
148                       logic d_ack;
149        1/1            assign a_ack = tl_h2d_i.a_valid & tl_d2h_o.a_ready;
           Tests:       T1 T2 T3 
150        1/1            assign d_ack = tl_h2d_i.d_ready & tl_d2h_o.d_valid;
           Tests:       T1 T2 T3 
151                     
152                       always_ff @(posedge clk_i or negedge rst_ni) begin
153        1/1              if (!rst_ni) begin
           Tests:       T1 T2 T3 
154        1/1                outstanding_txn <= '0;
           Tests:       T1 T2 T3 
155        1/1              end else if (a_ack && !d_ack) begin
           Tests:       T1 T2 T3 
156        1/1                outstanding_txn <= outstanding_txn + 1'b1;
           Tests:       T1 T2 T3 
157        1/1              end else if (d_ack && !a_ack) begin
           Tests:       T1 T2 T3 
158        1/1                outstanding_txn <= outstanding_txn - 1'b1;
           Tests:       T1 T2 T3 
159                         end
                        MISSING_ELSE
160                       end
161                     
162                       logic block_cmd;
163                       always_comb begin
164        1/1              block_cmd = '0;
           Tests:       T1 T2 T3 
165        1/1              state_d = state_q;
           Tests:       T1 T2 T3 
166        1/1              err_en = Off;
           Tests:       T1 T2 T3 
167        1/1              err_o = '0;
           Tests:       T1 T2 T3 
168        1/1              flush_ack_o = '0;
           Tests:       T1 T2 T3 
169        1/1              resp_pending_o = 1'b0;
           Tests:       T1 T2 T3 
170                     
171        1/1              unique case (state_q)
           Tests:       T1 T2 T3 
172                           StActive: begin
173        1/1                  if (lc_tx_test_false_loose(lc_en_i) || flush_req_i) begin
           Tests:       T1 T2 T3 
174        1/1                    state_d = StOutstanding;
           Tests:       T1 T52 T10 
175                             end
                        MISSING_ELSE
176        1/1                  if (outstanding_txn != '0) begin
           Tests:       T1 T2 T3 
177        1/1                    resp_pending_o = 1'b1;
           Tests:       T1 T2 T3 
178                             end
                        MISSING_ELSE
179                           end
180                     
181                           StOutstanding: begin
182        1/1                  block_cmd = 1'b1;
           Tests:       T1 T52 T10 
183        1/1                  if (outstanding_txn == '0) begin
           Tests:       T1 T52 T10 
184        1/1                    state_d = lc_tx_test_false_loose(lc_en_i) ? StError : StFlush;
           Tests:       T1 T52 T10 
185                             end else begin
186        1/1                    resp_pending_o = 1'b1;
           Tests:       T22 
187                             end
188                           end
189                     
190                           StFlush: begin
191        1/1                  block_cmd = 1'b1;
           Tests:       T1 T52 T10 
192        1/1                  flush_ack_o = 1'b1;
           Tests:       T1 T52 T10 
193        1/1                  if (lc_tx_test_false_loose(lc_en_i)) begin
           Tests:       T1 T52 T10 
194        1/1                    state_d = StError;
           Tests:       T1 T10 T36 
195        1/1                  end else if (!flush_req_i) begin
           Tests:       T1 T52 T10 
196        1/1                    state_d = StActive;
           Tests:       T1 T52 T75 
197                             end
                        MISSING_ELSE
198                           end
199                     
200                           StError: begin
201        1/1                  err_en = On;
           Tests:       T1 T2 T3 
202        1/1                  if (lc_tx_test_true_strict(lc_en_i)) begin
           Tests:       T1 T2 T3 
203        1/1                    state_d = StErrorOutstanding;
           Tests:       T1 T2 T3 
204                             end
                        MISSING_ELSE
205                           end
206                     
207                           StErrorOutstanding: begin
208        1/1                  err_en = On;
           Tests:       T1 T2 T3 
209        1/1                  block_cmd = 1'b1;
           Tests:       T1 T2 T3 
210        1/1                  if (outstanding_txn == '0) begin
           Tests:       T1 T2 T3 
211        1/1                    state_d = StActive;
           Tests:       T1 T2 T3 
212                             end
                   ==>  MISSING_ELSE
213                           end
214                     
215                           default: begin
216                             err_o = 1'b1;
217                             err_en = On;
218                           end
219                     
220                         endcase // unique case (state_q)
221                       end
222                     
223                     
224                       // At the host side, we interpose the ready / valid signals so that we can return a bus error
225                       // in case the lc signal is not set to ON. Note that this logic does not have to be duplicated
226                       // since erroring back is considered a convenience feature so that the bus does not lock up.
227                       tl_h2d_t tl_h2d_error;
228                       tl_d2h_t tl_d2h_error;
229                       always_comb begin
230        1/1              tl_h2d_int[0] = tl_h2d_i;
           Tests:       T1 T2 T3 
231        1/1              tl_d2h_o      = tl_d2h_int[0];
           Tests:       T1 T2 T3 
232        1/1              tl_h2d_error  = '0;
           Tests:       T1 T2 T3 
233                     
234        1/1              if (lc_tx_test_true_loose(err_en)) begin
           Tests:       T1 T2 T3 
235        1/1                tl_h2d_error  = tl_h2d_i;
           Tests:       T1 T2 T3 
236        1/1                tl_d2h_o      = tl_d2h_error;
           Tests:       T1 T2 T3 
237                         end
                        MISSING_ELSE
238                     
239        1/1              if (block_cmd) begin
           Tests:       T1 T2 T3 
240        1/1                tl_d2h_o.a_ready = 1'b0;
           Tests:       T1 T2 T3 
241        1/1                tl_h2d_int[0].a_valid = 1'b0;
           Tests:       T1 T2 T3 
242        1/1                tl_h2d_error.a_valid = 1'b0;
           Tests:       T1 T2 T3 
243                         end
                        MISSING_ELSE

---

Cond Coverage for Module : tlul_lc_gate

	Total	Covered	Percent
Conditions	18	15	83.33
Logical	18	15	83.33
Non-Logical	0	0
Event	0	0

 LINE       149
 EXPRESSION (tl_h2d_i.a_valid & tl_d2h_o.a_ready)
             --------1-------   --------2-------

-1-	-2-	Status	Tests
0	1	Covered	T1,T2,T3
1	0	Covered	T1,T2,T3
1	1	Covered	T1,T2,T3

 LINE       150
 EXPRESSION (tl_h2d_i.d_ready & tl_d2h_o.d_valid)
             --------1-------   --------2-------

-1-	-2-	Status	Tests
0	1	Covered	T1,T2,T3
1	0	Covered	T1,T2,T3
1	1	Covered	T1,T2,T3

 LINE       155
 EXPRESSION (a_ack && ((!d_ack)))
             --1--    -----2----

-1-	-2-	Status	Tests
0	1	Covered	T1,T2,T3
1	0	Not Covered
1	1	Covered	T1,T2,T3

 LINE       157
 EXPRESSION (d_ack && ((!a_ack)))
             --1--    -----2----

-1-	-2-	Status	Tests
0	1	Covered	T1,T2,T3
1	0	Not Covered
1	1	Covered	T1,T2,T3

 LINE       176
 EXPRESSION (outstanding_txn != '0)
            -----------1-----------

-1-	Status	Tests
0	Covered	T1,T2,T3
1	Covered	T1,T2,T3

 LINE       183
 EXPRESSION (outstanding_txn == '0)
            -----------1-----------

-1-	Status	Tests
0	Covered	T22
1	Covered	T1,T52,T10

 LINE       210
 EXPRESSION (outstanding_txn == '0)
            -----------1-----------

-1-	Status	Tests
0	Not Covered
1	Covered	T1,T2,T3

---

FSM Coverage for Module : tlul_lc_gate

Summary for FSM :: state_q

	Total	Covered	Percent
States	5	5	100.00	(Not included in score)
Transitions	7	7	100.00
Sequences	0	0

State, Transition and Sequence Details for FSM :: state_q

---

states	Line No.	Covered	Tests
StActive	196	Covered	T1,T2,T3
StError	184	Covered	T1,T2,T3
StErrorOutstanding	203	Covered	T1,T2,T3
StFlush	184	Covered	T1,T52,T10
StOutstanding	174	Covered	T1,T52,T10

transitions	Line No.	Covered	Tests
StActive->StOutstanding	174	Covered	T1,T52,T10
StError->StErrorOutstanding	203	Covered	T1,T2,T3
StErrorOutstanding->StActive	211	Covered	T1,T2,T3
StFlush->StActive	196	Covered	T1,T52,T75
StFlush->StError	194	Covered	T1,T10,T36
StOutstanding->StError	184	Covered	T1,T10,T76
StOutstanding->StFlush	184	Covered	T1,T52,T10

---

Branch Coverage for Module : tlul_lc_gate

	Line No.	Total	Covered	Percent
Branches		24	23	95.83
IF	144	2	2	100.00
IF	153	4	4	100.00
CASE	171	14	13	92.86
IF	234	2	2	100.00
IF	239	2	2	100.00

144          `PRIM_FLOP_SPARSE_FSM(u_state_regs, state_d, state_q, state_e, StError)
             -1-                                                                       
             ==>                                                                       
             ==>                                                                       

Branches:

-1-	Status	Tests
1	Covered	T1,T2,T3
0	Covered	T1,T2,T3

153            if (!rst_ni) begin
               -1-  
154              outstanding_txn <= '0;
                 ==>
155            end else if (a_ack && !d_ack) begin
                        -2-  
156              outstanding_txn <= outstanding_txn + 1'b1;
                 ==>
157            end else if (d_ack && !a_ack) begin
                        -3-  
158              outstanding_txn <= outstanding_txn - 1'b1;
                 ==>
159            end
               MISSING_ELSE
               ==>

Branches:

-1-	-2-	-3-	Status	Tests
1	-	-	Covered	T1,T2,T3
0	1	-	Covered	T1,T2,T3
0	0	1	Covered	T1,T2,T3
0	0	0	Covered	T1,T2,T3

171            unique case (state_q)
                      -1-  
172              StActive: begin
173                if (lc_tx_test_false_loose(lc_en_i) || flush_req_i) begin
                   -2-  
174                  state_d = StOutstanding;
                     ==>
175                end
                   MISSING_ELSE
                   ==>
176                if (outstanding_txn != '0) begin
                   -3-  
177                  resp_pending_o = 1'b1;
                     ==>
178                end
                   MISSING_ELSE
                   ==>
179              end
180        
181              StOutstanding: begin
182                block_cmd = 1'b1;
183                if (outstanding_txn == '0) begin
                   -4-  
184                  state_d = lc_tx_test_false_loose(lc_en_i) ? StError : StFlush;
                     ==>
185                end else begin
186                  resp_pending_o = 1'b1;
                     ==>
187                end
188              end
189        
190              StFlush: begin
191                block_cmd = 1'b1;
192                flush_ack_o = 1'b1;
193                if (lc_tx_test_false_loose(lc_en_i)) begin
                   -5-  
194                  state_d = StError;
                     ==>
195                end else if (!flush_req_i) begin
                            -6-  
196                  state_d = StActive;
                     ==>
197                end
                   MISSING_ELSE
                   ==>
198              end
199        
200              StError: begin
201                err_en = On;
202                if (lc_tx_test_true_strict(lc_en_i)) begin
                   -7-  
203                  state_d = StErrorOutstanding;
                     ==>
204                end
                   MISSING_ELSE
                   ==>
205              end
206        
207              StErrorOutstanding: begin
208                err_en = On;
209                block_cmd = 1'b1;
210                if (outstanding_txn == '0) begin
                   -8-  
211                  state_d = StActive;
                     ==>
212                end
                   MISSING_ELSE
                   ==>
213              end
214        
215              default: begin
216                err_o = 1'b1;
                   ==>

Branches:

-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	Status	Tests
StActive	1	-	-	-	-	-	-	Covered	T1,T52,T10
StActive	0	-	-	-	-	-	-	Covered	T1,T2,T3
StActive	-	1	-	-	-	-	-	Covered	T1,T2,T3
StActive	-	0	-	-	-	-	-	Covered	T1,T2,T3
StOutstanding	-	-	1	-	-	-	-	Covered	T1,T52,T10
StOutstanding	-	-	0	-	-	-	-	Covered	T22
StFlush	-	-	-	1	-	-	-	Covered	T1,T10,T36
StFlush	-	-	-	0	1	-	-	Covered	T1,T52,T75
StFlush	-	-	-	0	0	-	-	Covered	T1,T52,T10
StError	-	-	-	-	-	1	-	Covered	T1,T2,T3
StError	-	-	-	-	-	0	-	Covered	T1,T2,T3
StErrorOutstanding	-	-	-	-	-	-	1	Covered	T1,T2,T3
StErrorOutstanding	-	-	-	-	-	-	0	Not Covered
default	-	-	-	-	-	-	-	Covered	T43,T48,T77

234            if (lc_tx_test_true_loose(err_en)) begin
               -1-  
235              tl_h2d_error  = tl_h2d_i;
                 ==>
236              tl_d2h_o      = tl_d2h_error;
237            end
               MISSING_ELSE
               ==>

Branches:

-1-	Status	Tests
1	Covered	T1,T2,T3
0	Covered	T1,T2,T3

239            if (block_cmd) begin
               -1-  
240              tl_d2h_o.a_ready = 1'b0;
                 ==>
241              tl_h2d_int[0].a_valid = 1'b0;
242              tl_h2d_error.a_valid = 1'b0;
243            end
               MISSING_ELSE
               ==>

Branches:

-1-	Status	Tests
1	Covered	T1,T2,T3
0	Covered	T1,T2,T3

---

Assert Coverage for Module : tlul_lc_gate

	Total	Attempted	Percent	Succeeded/Matched	Percent
Assertions	2	2	100.00	1	50.00
Cover properties	0	0		0
Cover sequences	0	0		0
Total	2	2	100.00	1	50.00

---

Assertion Details

Name	Attempts	Real Successes	Failures	Incomplete
OutStandingOvfl_A	89209088	0	0	0
u_state_regs_A	89209080	89060518	0	0

OutStandingOvfl_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	89209088	0	0	0

u_state_regs_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	89209080	89060518	0	0
T1	57912	57288	0	0
T2	28966	28808	0	0
T3	48260	48132	0	0
T4	16710	16548	0	0
T5	64968	64804	0	0
T6	13224	13116	0	0
T25	33446	33322	0	0
T35	66760	66658	0	0
T39	4068	3916	0	0
T42	74592	74470	0	0

Line Coverage for Instance : tb.dut.u_tlul_lc_gate_sba

	Line No.	Total	Covered	Percent
TOTAL		51	44	86.27
CONT_ASSIGN	84	1	1	100.00
CONT_ASSIGN	85	1	1	100.00
ALWAYS	144	3	3	100.00
CONT_ASSIGN	149	1	1	100.00
CONT_ASSIGN	150	1	1	100.00
ALWAYS	153	6	6	100.00
ALWAYS	164	28	21	75.00
ALWAYS	230	10	10	100.00

83                        // Assign signals on the device side.
84         1/1            assign tl_h2d_o = tl_h2d_int[NumGatesPerDirection];
           Tests:       T1 T2 T3 
85         1/1            assign tl_d2h_int[NumGatesPerDirection] = tl_d2h_i;
           Tests:       T1 T2 T3 
86                      
87                        ///////////////////////////
88                        // Host Side Interposing //
89                        ///////////////////////////
90                      
91                        // Encoding generated with:
92                        // $ ./util/design/sparse-fsm-encode.py -d 5 -m 4 -n 8 \
93                        //      -s 3379253306 --language=sv
94                        //
95                        // Hamming distance histogram:
96                        //
97                        //  0: --
98                        //  1: --
99                        //  2: --
100                       //  3: --
101                       //  4: --
102                       //  5: |||||||||||||||||||| (66.67%)
103                       //  6: |||||||||| (33.33%)
104                       //  7: --
105                       //  8: --
106                       //
107                       // Minimum Hamming distance: 5
108                       // Maximum Hamming distance: 6
109                       // Minimum Hamming weight: 3
110                       // Maximum Hamming weight: 5
111                       //
112                       // Encoding generated with:
113                       // $ ./util/design/sparse-fsm-encode.py -d 5 -m 5 -n 9 \
114                       //      -s 686407169 --language=sv
115                       //
116                       // Hamming distance histogram:
117                       //
118                       //  0: --
119                       //  1: --
120                       //  2: --
121                       //  3: --
122                       //  4: --
123                       //  5: |||||||||||||||||||| (60.00%)
124                       //  6: ||||||||||||| (40.00%)
125                       //  7: --
126                       //  8: --
127                       //  9: --
128                       //
129                       // Minimum Hamming distance: 5
130                       // Maximum Hamming distance: 6
131                       // Minimum Hamming weight: 3
132                       // Maximum Hamming weight: 6
133                       //
134                       localparam int StateWidth = 9;
135                       typedef enum logic [StateWidth-1:0] {
136                         StActive = 9'b100100001,
137                         StOutstanding = 9'b011100111,
138                         StFlush = 9'b001001100,
139                         StError = 9'b010111010,
140                         StErrorOutstanding = 9'b100010110
141                       } state_e;
142                     
143                       state_e state_d, state_q;
144        3/3            `PRIM_FLOP_SPARSE_FSM(u_state_regs, state_d, state_q, state_e, StError)
           Tests:       T1 T2 T3  | T1 T2 T3  | T1 T2 T3 
PRIM_FLOP_SPARSE_FSM(u_state_regs, state_d, state_q, state_e, StError):
144.1                   `ifdef SIMULATION                                   
144.2                       prim_sparse_fsm_flop #(                           
144.3                         .StateEnumT(state_e),                            
144.4                         .Width($bits(state_e)),                          
144.5                         .ResetValue($bits(state_e)'(StError)),          
144.6                         .EnableAlertTriggerSVA(1), 
144.7                         .CustomForceName("state_q")          
144.8                       ) u_state_regs (                                        
144.9                         .clk_i   ( clk_i   ),                           
144.10                        .rst_ni  ( rst_ni ),                           
144.11                        .state_i ( state_d     ),                           
144.12                        .state_o (         )                            
144.13                      );                                                
144.14                      always_ff @(posedge clk_i or negedge rst_ni) begin 
144.15     1/1              if (!rst_ni) begin                               
           Tests:       T1 T2 T3 
144.16     1/1                state_q <= StError;                                
           Tests:       T1 T2 T3 
144.17                      end else begin                                    
144.18     1/1                state_q <= state_d;                                     
           Tests:       T1 T2 T3 
144.19                      end                                               
144.20                    end  
144.21                      u_state_regs_A: assert property (@(posedge clk_i) disable iff ((!rst_ni) !== '0) (state_q === u_state_regs.state_o))       
144.22                      else begin                                                                           
144.23                        `ifdef UVM                                                                               
144.24                    uvm_pkg::uvm_report_error("ASSERT FAILED", "u_state_regs_A", uvm_pkg::UVM_NONE, 
144.25                                              "../src/lowrisc_tlul_lc_gate_0.1/rtl/tlul_lc_gate.sv", 144, "", 1);                                
144.26                  `else                                                                                    
144.27                    $error("%0t: (%0s:%0d) [%m] [ASSERT FAILED] %0s", $time, `__FILE__, `__LINE__,         
144.28                           `PRIM_STRINGIFY(u_state_regs_A));                                                       
144.29                  `endif                                                              
144.30                      end 
144.31                    `else                                               
144.32                      prim_sparse_fsm_flop #(                           
144.33                        .StateEnumT(state_e),                            
144.34                        .Width($bits(state_e)),                          
144.35                        .ResetValue($bits(state_e)'(StError)),          
144.36                        .EnableAlertTriggerSVA(1)  
144.37                      ) u_state_regs (                                        
144.38                        .clk_i   ( `PRIM_FLOP_CLK   ),                           
144.39                        .rst_ni  ( `PRIM_FLOP_RST ),                           
144.40                        .state_i ( state_d     ),                           
144.41                        .state_o ( state_q     )                            
144.42                      );                                                
144.43                    `endif145                     
146                       logic [1:0] outstanding_txn;
147                       logic a_ack;
148                       logic d_ack;
149        1/1            assign a_ack = tl_h2d_i.a_valid & tl_d2h_o.a_ready;
           Tests:       T1 T2 T3 
150        1/1            assign d_ack = tl_h2d_i.d_ready & tl_d2h_o.d_valid;
           Tests:       T1 T2 T3 
151                     
152                       always_ff @(posedge clk_i or negedge rst_ni) begin
153        1/1              if (!rst_ni) begin
           Tests:       T1 T2 T3 
154        1/1                outstanding_txn <= '0;
           Tests:       T1 T2 T3 
155        1/1              end else if (a_ack && !d_ack) begin
           Tests:       T1 T2 T3 
156        1/1                outstanding_txn <= outstanding_txn + 1'b1;
           Tests:       T14 T15 T16 
157        1/1              end else if (d_ack && !a_ack) begin
           Tests:       T1 T2 T3 
158        1/1                outstanding_txn <= outstanding_txn - 1'b1;
           Tests:       T14 T15 T16 
159                         end
                        MISSING_ELSE
160                       end
161                     
162                       logic block_cmd;
163                       always_comb begin
164        1/1              block_cmd = '0;
           Tests:       T1 T2 T3 
165        1/1              state_d = state_q;
           Tests:       T1 T2 T3 
166        1/1              err_en = Off;
           Tests:       T1 T2 T3 
167        1/1              err_o = '0;
           Tests:       T1 T2 T3 
168        1/1              flush_ack_o = '0;
           Tests:       T1 T2 T3 
169        1/1              resp_pending_o = 1'b0;
           Tests:       T1 T2 T3 
170                     
171        1/1              unique case (state_q)
           Tests:       T1 T2 T3 
172                           StActive: begin
173        1/1                  if (lc_tx_test_false_loose(lc_en_i) || flush_req_i) begin
           Tests:       T1 T2 T3 
174        1/1                    state_d = StOutstanding;
           Tests:       T1 T10 T76 
175                             end
                        MISSING_ELSE
176        1/1                  if (outstanding_txn != '0) begin
           Tests:       T1 T2 T3 
177        1/1                    resp_pending_o = 1'b1;
           Tests:       T14 T16 T37 
178                             end
                        MISSING_ELSE
179                           end
180                     
181                           StOutstanding: begin
182        1/1                  block_cmd = 1'b1;
           Tests:       T1 T10 T76 
183        1/1                  if (outstanding_txn == '0) begin
           Tests:       T1 T10 T76 
184        1/1                    state_d = lc_tx_test_false_loose(lc_en_i) ? StError : StFlush;
           Tests:       T1 T10 T76 
185                             end else begin
186        0/1     ==>            resp_pending_o = 1'b1;
187                             end
188                           end
189                     
190                           StFlush: begin
191        0/1     ==>          block_cmd = 1'b1;
192        0/1     ==>          flush_ack_o = 1'b1;
193        0/1     ==>          if (lc_tx_test_false_loose(lc_en_i)) begin
194        0/1     ==>            state_d = StError;
195        0/1     ==>          end else if (!flush_req_i) begin
196        0/1     ==>            state_d = StActive;
197                             end
                   ==>  MISSING_ELSE
198                           end
199                     
200                           StError: begin
201        1/1                  err_en = On;
           Tests:       T1 T2 T3 
202        1/1                  if (lc_tx_test_true_strict(lc_en_i)) begin
           Tests:       T1 T2 T3 
203        1/1                    state_d = StErrorOutstanding;
           Tests:       T1 T2 T3 
204                             end
                        MISSING_ELSE
205                           end
206                     
207                           StErrorOutstanding: begin
208        1/1                  err_en = On;
           Tests:       T1 T2 T3 
209        1/1                  block_cmd = 1'b1;
           Tests:       T1 T2 T3 
210        1/1                  if (outstanding_txn == '0) begin
           Tests:       T1 T2 T3 
211        1/1                    state_d = StActive;
           Tests:       T1 T2 T3 
212                             end
                   ==>  MISSING_ELSE
213                           end
214                     
215                           default: begin
216                             err_o = 1'b1;
Exclude Annotation: VC_COV_UNR
217                             err_en = On;
Exclude Annotation: VC_COV_UNR
218                           end
219                     
220                         endcase // unique case (state_q)
221                       end
222                     
223                     
224                       // At the host side, we interpose the ready / valid signals so that we can return a bus error
225                       // in case the lc signal is not set to ON. Note that this logic does not have to be duplicated
226                       // since erroring back is considered a convenience feature so that the bus does not lock up.
227                       tl_h2d_t tl_h2d_error;
228                       tl_d2h_t tl_d2h_error;
229                       always_comb begin
230        1/1              tl_h2d_int[0] = tl_h2d_i;
           Tests:       T1 T2 T3 
231        1/1              tl_d2h_o      = tl_d2h_int[0];
           Tests:       T1 T2 T3 
232        1/1              tl_h2d_error  = '0;
           Tests:       T1 T2 T3 
233                     
234        1/1              if (lc_tx_test_true_loose(err_en)) begin
           Tests:       T1 T2 T3 
235        1/1                tl_h2d_error  = tl_h2d_i;
           Tests:       T1 T2 T3 
236        1/1                tl_d2h_o      = tl_d2h_error;
           Tests:       T1 T2 T3 
237                         end
                        MISSING_ELSE
238                     
239        1/1              if (block_cmd) begin
           Tests:       T1 T2 T3 
240        1/1                tl_d2h_o.a_ready = 1'b0;
           Tests:       T1 T2 T3 
241        1/1                tl_h2d_int[0].a_valid = 1'b0;
           Tests:       T1 T2 T3 
242        1/1                tl_h2d_error.a_valid = 1'b0;
           Tests:       T1 T2 T3 
243                         end
                        MISSING_ELSE

---

Cond Coverage for Instance : tb.dut.u_tlul_lc_gate_sba

	Total	Covered	Percent
Conditions	17	13	76.47
Logical	17	13	76.47
Non-Logical	0	0
Event	0	0

 LINE       149
 EXPRESSION (tl_h2d_i.a_valid & tl_d2h_o.a_ready)
             --------1-------   --------2-------

-1-	-2-	Status	Tests
0	1	Covered	T1,T2,T3
1	0	Covered	T14,T37,T76
1	1	Covered	T14,T15,T16

 LINE       150
 EXPRESSION (tl_h2d_i.d_ready & tl_d2h_o.d_valid)
             --------1-------   --------2-------

-1-	-2-	Status	Tests	Exclude Annotation
0	1	Excluded		VC_COV_UNR
1	0	Covered	T1,T2,T3
1	1	Covered	T14,T15,T16

 LINE       155
 EXPRESSION (a_ack && ((!d_ack)))
             --1--    -----2----

-1-	-2-	Status	Tests
0	1	Covered	T1,T2,T3
1	0	Not Covered
1	1	Covered	T14,T15,T16

 LINE       157
 EXPRESSION (d_ack && ((!a_ack)))
             --1--    -----2----

-1-	-2-	Status	Tests
0	1	Covered	T1,T2,T3
1	0	Not Covered
1	1	Covered	T14,T15,T16

 LINE       176
 EXPRESSION (outstanding_txn != '0)
            -----------1-----------

-1-	Status	Tests
0	Covered	T1,T2,T3
1	Covered	T14,T16,T37

 LINE       183
 EXPRESSION (outstanding_txn == '0)
            -----------1-----------

-1-	Status	Tests
0	Not Covered
1	Covered	T1,T10,T76

 LINE       210
 EXPRESSION (outstanding_txn == '0)
            -----------1-----------

-1-	Status	Tests
0	Not Covered
1	Covered	T1,T2,T3

---

FSM Coverage for Instance : tb.dut.u_tlul_lc_gate_sba

Summary for FSM :: state_q

	Total	Covered	Percent
States	4	4	100.00	(Not included in score)
Transitions	4	4	100.00
Sequences	0	0

State, Transition and Sequence Details for FSM :: state_q

---

states	Line No.	Covered	Tests
StActive	196	Covered	T1,T2,T3
StError	184	Covered	T1,T2,T3
StErrorOutstanding	203	Covered	T1,T2,T3
StFlush	184	Excluded
StOutstanding	174	Covered	T1,T10,T76

transitions	Line No.	Covered	Tests
StActive->StOutstanding	174	Covered	T1,T10,T76
StError->StErrorOutstanding	203	Covered	T1,T2,T3
StErrorOutstanding->StActive	211	Covered	T1,T2,T3
StFlush->StActive	196	Excluded
StFlush->StError	194	Excluded
StOutstanding->StError	184	Covered	T1,T10,T76
StOutstanding->StFlush	184	Excluded

---

Branch Coverage for Instance : tb.dut.u_tlul_lc_gate_sba

	Line No.	Total	Covered	Percent
Branches		22	18	81.82
IF	144	2	2	100.00
IF	153	4	4	100.00
CASE	171	12	8	66.67
IF	234	2	2	100.00
IF	239	2	2	100.00

144          `PRIM_FLOP_SPARSE_FSM(u_state_regs, state_d, state_q, state_e, StError)
             -1-                                                                       
             ==>                                                                       
             ==>                                                                       

Branches:

-1-	Status	Tests
1	Covered	T1,T2,T3
0	Covered	T1,T2,T3

153            if (!rst_ni) begin
               -1-  
154              outstanding_txn <= '0;
                 ==>
155            end else if (a_ack && !d_ack) begin
                        -2-  
156              outstanding_txn <= outstanding_txn + 1'b1;
                 ==>
157            end else if (d_ack && !a_ack) begin
                        -3-  
158              outstanding_txn <= outstanding_txn - 1'b1;
                 ==>
159            end
               MISSING_ELSE
               ==>

Branches:

-1-	-2-	-3-	Status	Tests
1	-	-	Covered	T1,T2,T3
0	1	-	Covered	T14,T15,T16
0	0	1	Covered	T14,T15,T16
0	0	0	Covered	T1,T2,T3

171            unique case (state_q)
                      -1-  
172              StActive: begin
173                if (lc_tx_test_false_loose(lc_en_i) || flush_req_i) begin
                   -2-  
174                  state_d = StOutstanding;
                     ==>
175                end
                   MISSING_ELSE
                   ==>
176                if (outstanding_txn != '0) begin
                   -3-  
177                  resp_pending_o = 1'b1;
                     ==>
178                end
                   MISSING_ELSE
                   ==>
179              end
180        
181              StOutstanding: begin
182                block_cmd = 1'b1;
183                if (outstanding_txn == '0) begin
                   -4-  
184                  state_d = lc_tx_test_false_loose(lc_en_i) ? StError : StFlush;
                     ==>
185                end else begin
186                  resp_pending_o = 1'b1;
                     ==>
187                end
188              end
189        
190              StFlush: begin
191                block_cmd = 1'b1;
192                flush_ack_o = 1'b1;
193                if (lc_tx_test_false_loose(lc_en_i)) begin
                   -5-  
194                  state_d = StError;
                     ==>
195                end else if (!flush_req_i) begin
                            -6-  
196                  state_d = StActive;
                     ==>
197                end
                   MISSING_ELSE
                   ==> (Excluded)
Exclude Annotation: VC_COV_UNR
198              end
199        
200              StError: begin
201                err_en = On;
202                if (lc_tx_test_true_strict(lc_en_i)) begin
                   -7-  
203                  state_d = StErrorOutstanding;
                     ==>
204                end
                   MISSING_ELSE
                   ==>
205              end
206        
207              StErrorOutstanding: begin
208                err_en = On;
209                block_cmd = 1'b1;
210                if (outstanding_txn == '0) begin
                   -8-  
211                  state_d = StActive;
                     ==>
212                end
                   MISSING_ELSE
                   ==>
213              end
214        
215              default: begin
216                err_o = 1'b1;
                   ==> (Excluded)
Exclude Annotation: VC_COV_UNR

Branches:

-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	Status	Tests	Exclude Annotation
StActive	1	-	-	-	-	-	-	Covered	T1,T10,T76
StActive	0	-	-	-	-	-	-	Covered	T1,T2,T3
StActive	-	1	-	-	-	-	-	Covered	T14,T16,T37
StActive	-	0	-	-	-	-	-	Covered	T1,T2,T3
StOutstanding	-	-	1	-	-	-	-	Covered	T1,T10,T76
StOutstanding	-	-	0	-	-	-	-	Not Covered
StFlush	-	-	-	1	-	-	-	Not Covered
StFlush	-	-	-	0	1	-	-	Not Covered
StFlush	-	-	-	0	0	-	-	Excluded		VC_COV_UNR
StError	-	-	-	-	-	1	-	Covered	T1,T2,T3
StError	-	-	-	-	-	0	-	Covered	T1,T2,T3
StErrorOutstanding	-	-	-	-	-	-	1	Covered	T1,T2,T3
StErrorOutstanding	-	-	-	-	-	-	0	Not Covered
default	-	-	-	-	-	-	-	Excluded	T43,T77	VC_COV_UNR

234            if (lc_tx_test_true_loose(err_en)) begin
               -1-  
235              tl_h2d_error  = tl_h2d_i;
                 ==>
236              tl_d2h_o      = tl_d2h_error;
237            end
               MISSING_ELSE
               ==>

Branches:

-1-	Status	Tests
1	Covered	T1,T2,T3
0	Covered	T1,T2,T3

239            if (block_cmd) begin
               -1-  
240              tl_d2h_o.a_ready = 1'b0;
                 ==>
241              tl_h2d_int[0].a_valid = 1'b0;
242              tl_h2d_error.a_valid = 1'b0;
243            end
               MISSING_ELSE
               ==>

Branches:

-1-	Status	Tests
1	Covered	T1,T2,T3
0	Covered	T1,T2,T3

---

Assert Coverage for Instance : tb.dut.u_tlul_lc_gate_sba

	Total	Attempted	Percent	Succeeded/Matched	Percent
Assertions	2	2	100.00	1	50.00
Cover properties	0	0		0
Cover sequences	0	0		0
Total	2	2	100.00	1	50.00

---

Assertion Details

Name	Attempts	Real Successes	Failures	Incomplete
OutStandingOvfl_A	44604544	0	0	0
u_state_regs_A	44604540	44530259	0	0

OutStandingOvfl_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	44604544	0	0	0

u_state_regs_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	44604540	44530259	0	0
T1	28956	28644	0	0
T2	14483	14404	0	0
T3	24130	24066	0	0
T4	8355	8274	0	0
T5	32484	32402	0	0
T6	6612	6558	0	0
T25	16723	16661	0	0
T35	33380	33329	0	0
T39	2034	1958	0	0
T42	37296	37235	0	0

Line Coverage for Instance : tb.dut.u_tlul_lc_gate_rom

	Line No.	Total	Covered	Percent
TOTAL		51	51	100.00
CONT_ASSIGN	84	1	1	100.00
CONT_ASSIGN	85	1	1	100.00
ALWAYS	144	3	3	100.00
CONT_ASSIGN	149	1	1	100.00
CONT_ASSIGN	150	1	1	100.00
ALWAYS	153	6	6	100.00
ALWAYS	164	28	28	100.00
ALWAYS	230	10	10	100.00

83                        // Assign signals on the device side.
84         1/1            assign tl_h2d_o = tl_h2d_int[NumGatesPerDirection];
           Tests:       T1 T2 T3 
85         1/1            assign tl_d2h_int[NumGatesPerDirection] = tl_d2h_i;
           Tests:       T1 T2 T3 
86                      
87                        ///////////////////////////
88                        // Host Side Interposing //
89                        ///////////////////////////
90                      
91                        // Encoding generated with:
92                        // $ ./util/design/sparse-fsm-encode.py -d 5 -m 4 -n 8 \
93                        //      -s 3379253306 --language=sv
94                        //
95                        // Hamming distance histogram:
96                        //
97                        //  0: --
98                        //  1: --
99                        //  2: --
100                       //  3: --
101                       //  4: --
102                       //  5: |||||||||||||||||||| (66.67%)
103                       //  6: |||||||||| (33.33%)
104                       //  7: --
105                       //  8: --
106                       //
107                       // Minimum Hamming distance: 5
108                       // Maximum Hamming distance: 6
109                       // Minimum Hamming weight: 3
110                       // Maximum Hamming weight: 5
111                       //
112                       // Encoding generated with:
113                       // $ ./util/design/sparse-fsm-encode.py -d 5 -m 5 -n 9 \
114                       //      -s 686407169 --language=sv
115                       //
116                       // Hamming distance histogram:
117                       //
118                       //  0: --
119                       //  1: --
120                       //  2: --
121                       //  3: --
122                       //  4: --
123                       //  5: |||||||||||||||||||| (60.00%)
124                       //  6: ||||||||||||| (40.00%)
125                       //  7: --
126                       //  8: --
127                       //  9: --
128                       //
129                       // Minimum Hamming distance: 5
130                       // Maximum Hamming distance: 6
131                       // Minimum Hamming weight: 3
132                       // Maximum Hamming weight: 6
133                       //
134                       localparam int StateWidth = 9;
135                       typedef enum logic [StateWidth-1:0] {
136                         StActive = 9'b100100001,
137                         StOutstanding = 9'b011100111,
138                         StFlush = 9'b001001100,
139                         StError = 9'b010111010,
140                         StErrorOutstanding = 9'b100010110
141                       } state_e;
142                     
143                       state_e state_d, state_q;
144        3/3            `PRIM_FLOP_SPARSE_FSM(u_state_regs, state_d, state_q, state_e, StError)
           Tests:       T1 T2 T3  | T1 T2 T3  | T1 T2 T3 
PRIM_FLOP_SPARSE_FSM(u_state_regs, state_d, state_q, state_e, StError):
144.1                   `ifdef SIMULATION                                   
144.2                       prim_sparse_fsm_flop #(                           
144.3                         .StateEnumT(state_e),                            
144.4                         .Width($bits(state_e)),                          
144.5                         .ResetValue($bits(state_e)'(StError)),          
144.6                         .EnableAlertTriggerSVA(1), 
144.7                         .CustomForceName("state_q")          
144.8                       ) u_state_regs (                                        
144.9                         .clk_i   ( clk_i   ),                           
144.10                        .rst_ni  ( rst_ni ),                           
144.11                        .state_i ( state_d     ),                           
144.12                        .state_o (         )                            
144.13                      );                                                
144.14                      always_ff @(posedge clk_i or negedge rst_ni) begin 
144.15     1/1              if (!rst_ni) begin                               
           Tests:       T1 T2 T3 
144.16     1/1                state_q <= StError;                                
           Tests:       T1 T2 T3 
144.17                      end else begin                                    
144.18     1/1                state_q <= state_d;                                     
           Tests:       T1 T2 T3 
144.19                      end                                               
144.20                    end  
144.21                      u_state_regs_A: assert property (@(posedge clk_i) disable iff ((!rst_ni) !== '0) (state_q === u_state_regs.state_o))       
144.22                      else begin                                                                           
144.23                        `ifdef UVM                                                                               
144.24                    uvm_pkg::uvm_report_error("ASSERT FAILED", "u_state_regs_A", uvm_pkg::UVM_NONE, 
144.25                                              "../src/lowrisc_tlul_lc_gate_0.1/rtl/tlul_lc_gate.sv", 144, "", 1);                                
144.26                  `else                                                                                    
144.27                    $error("%0t: (%0s:%0d) [%m] [ASSERT FAILED] %0s", $time, `__FILE__, `__LINE__,         
144.28                           `PRIM_STRINGIFY(u_state_regs_A));                                                       
144.29                  `endif                                                              
144.30                      end 
144.31                    `else                                               
144.32                      prim_sparse_fsm_flop #(                           
144.33                        .StateEnumT(state_e),                            
144.34                        .Width($bits(state_e)),                          
144.35                        .ResetValue($bits(state_e)'(StError)),          
144.36                        .EnableAlertTriggerSVA(1)  
144.37                      ) u_state_regs (                                        
144.38                        .clk_i   ( `PRIM_FLOP_CLK   ),                           
144.39                        .rst_ni  ( `PRIM_FLOP_RST ),                           
144.40                        .state_i ( state_d     ),                           
144.41                        .state_o ( state_q     )                            
144.42                      );                                                
144.43                    `endif145                     
146                       logic [1:0] outstanding_txn;
147                       logic a_ack;
148                       logic d_ack;
149        1/1            assign a_ack = tl_h2d_i.a_valid & tl_d2h_o.a_ready;
           Tests:       T1 T2 T3 
150        1/1            assign d_ack = tl_h2d_i.d_ready & tl_d2h_o.d_valid;
           Tests:       T1 T2 T3 
151                     
152                       always_ff @(posedge clk_i or negedge rst_ni) begin
153        1/1              if (!rst_ni) begin
           Tests:       T1 T2 T3 
154        1/1                outstanding_txn <= '0;
           Tests:       T1 T2 T3 
155        1/1              end else if (a_ack && !d_ack) begin
           Tests:       T1 T2 T3 
156        1/1                outstanding_txn <= outstanding_txn + 1'b1;
           Tests:       T1 T2 T3 
157        1/1              end else if (d_ack && !a_ack) begin
           Tests:       T1 T2 T3 
158        1/1                outstanding_txn <= outstanding_txn - 1'b1;
           Tests:       T1 T2 T3 
159                         end
                        MISSING_ELSE
160                       end
161                     
162                       logic block_cmd;
163                       always_comb begin
164        1/1              block_cmd = '0;
           Tests:       T1 T2 T3 
165        1/1              state_d = state_q;
           Tests:       T1 T2 T3 
166        1/1              err_en = Off;
           Tests:       T1 T2 T3 
167        1/1              err_o = '0;
           Tests:       T1 T2 T3 
168        1/1              flush_ack_o = '0;
           Tests:       T1 T2 T3 
169        1/1              resp_pending_o = 1'b0;
           Tests:       T1 T2 T3 
170                     
171        1/1              unique case (state_q)
           Tests:       T1 T2 T3 
172                           StActive: begin
173        1/1                  if (lc_tx_test_false_loose(lc_en_i) || flush_req_i) begin
           Tests:       T1 T2 T3 
174        1/1                    state_d = StOutstanding;
           Tests:       T1 T52 T10 
175                             end
                        MISSING_ELSE
176        1/1                  if (outstanding_txn != '0) begin
           Tests:       T1 T2 T3 
177        1/1                    resp_pending_o = 1'b1;
           Tests:       T1 T2 T3 
178                             end
                        MISSING_ELSE
179                           end
180                     
181                           StOutstanding: begin
182        1/1                  block_cmd = 1'b1;
           Tests:       T1 T52 T10 
183        1/1                  if (outstanding_txn == '0) begin
           Tests:       T1 T52 T10 
184        1/1                    state_d = lc_tx_test_false_loose(lc_en_i) ? StError : StFlush;
           Tests:       T1 T52 T10 
185                             end else begin
186        1/1                    resp_pending_o = 1'b1;
           Tests:       T22 
187                             end
188                           end
189                     
190                           StFlush: begin
191        1/1                  block_cmd = 1'b1;
           Tests:       T1 T52 T10 
192        1/1                  flush_ack_o = 1'b1;
           Tests:       T1 T52 T10 
193        1/1                  if (lc_tx_test_false_loose(lc_en_i)) begin
           Tests:       T1 T52 T10 
194        1/1                    state_d = StError;
           Tests:       T1 T10 T36 
195        1/1                  end else if (!flush_req_i) begin
           Tests:       T1 T52 T10 
196        1/1                    state_d = StActive;
           Tests:       T1 T52 T75 
197                             end
                        MISSING_ELSE
198                           end
199                     
200                           StError: begin
201        1/1                  err_en = On;
           Tests:       T1 T2 T3 
202        1/1                  if (lc_tx_test_true_strict(lc_en_i)) begin
           Tests:       T1 T2 T3 
203        1/1                    state_d = StErrorOutstanding;
           Tests:       T1 T2 T3 
204                             end
                        MISSING_ELSE
205                           end
206                     
207                           StErrorOutstanding: begin
208        1/1                  err_en = On;
           Tests:       T1 T2 T3 
209        1/1                  block_cmd = 1'b1;
           Tests:       T1 T2 T3 
210        1/1                  if (outstanding_txn == '0) begin
           Tests:       T1 T2 T3 
211        1/1                    state_d = StActive;
           Tests:       T1 T2 T3 
212                             end
                   ==>  MISSING_ELSE
213                           end
214                     
215                           default: begin
216                             err_o = 1'b1;
Exclude Annotation: VC_COV_UNR
217                             err_en = On;
Exclude Annotation: VC_COV_UNR
218                           end
219                     
220                         endcase // unique case (state_q)
221                       end
222                     
223                     
224                       // At the host side, we interpose the ready / valid signals so that we can return a bus error
225                       // in case the lc signal is not set to ON. Note that this logic does not have to be duplicated
226                       // since erroring back is considered a convenience feature so that the bus does not lock up.
227                       tl_h2d_t tl_h2d_error;
228                       tl_d2h_t tl_d2h_error;
229                       always_comb begin
230        1/1              tl_h2d_int[0] = tl_h2d_i;
           Tests:       T1 T2 T3 
231        1/1              tl_d2h_o      = tl_d2h_int[0];
           Tests:       T1 T2 T3 
232        1/1              tl_h2d_error  = '0;
           Tests:       T1 T2 T3 
233                     
234        1/1              if (lc_tx_test_true_loose(err_en)) begin
           Tests:       T1 T2 T3 
235        1/1                tl_h2d_error  = tl_h2d_i;
           Tests:       T1 T2 T3 
236        1/1                tl_d2h_o      = tl_d2h_error;
           Tests:       T1 T2 T3 
237                         end
                        MISSING_ELSE
238                     
239        1/1              if (block_cmd) begin
           Tests:       T1 T2 T3 
240        1/1                tl_d2h_o.a_ready = 1'b0;
           Tests:       T1 T2 T3 
241        1/1                tl_h2d_int[0].a_valid = 1'b0;
           Tests:       T1 T2 T3 
242        1/1                tl_h2d_error.a_valid = 1'b0;
           Tests:       T1 T2 T3 
243                         end
                        MISSING_ELSE

---

Cond Coverage for Instance : tb.dut.u_tlul_lc_gate_rom

	Total	Covered	Percent
Conditions	16	15	93.75
Logical	16	15	93.75
Non-Logical	0	0
Event	0	0

 LINE       149
 EXPRESSION (tl_h2d_i.a_valid & tl_d2h_o.a_ready)
             --------1-------   --------2-------

-1-	-2-	Status	Tests
0	1	Covered	T1,T2,T3
1	0	Covered	T1,T2,T3
1	1	Covered	T1,T2,T3

 LINE       150
 EXPRESSION (tl_h2d_i.d_ready & tl_d2h_o.d_valid)
             --------1-------   --------2-------

-1-	-2-	Status	Tests
0	1	Covered	T1,T2,T3
1	0	Covered	T1,T2,T3
1	1	Covered	T1,T2,T3

 LINE       155
 EXPRESSION (a_ack && ((!d_ack)))
             --1--    -----2----

-1-	-2-	Status	Tests	Exclude Annotation
0	1	Covered	T1,T2,T3
1	0	Excluded		VC_COV_UNR
1	1	Covered	T1,T2,T3

 LINE       157
 EXPRESSION (d_ack && ((!a_ack)))
             --1--    -----2----

-1-	-2-	Status	Tests	Exclude Annotation
0	1	Covered	T1,T2,T3
1	0	Excluded		VC_COV_UNR
1	1	Covered	T1,T2,T3

 LINE       176
 EXPRESSION (outstanding_txn != '0)
            -----------1-----------

-1-	Status	Tests
0	Covered	T1,T2,T3
1	Covered	T1,T2,T3

 LINE       183
 EXPRESSION (outstanding_txn == '0)
            -----------1-----------

-1-	Status	Tests
0	Covered	T22
1	Covered	T1,T52,T10

 LINE       210
 EXPRESSION (outstanding_txn == '0)
            -----------1-----------

-1-	Status	Tests
0	Not Covered
1	Covered	T1,T2,T3

---

FSM Coverage for Instance : tb.dut.u_tlul_lc_gate_rom

Summary for FSM :: state_q

	Total	Covered	Percent
States	5	5	100.00	(Not included in score)
Transitions	7	7	100.00
Sequences	0	0

State, Transition and Sequence Details for FSM :: state_q

---

states	Line No.	Covered	Tests
StActive	196	Covered	T1,T2,T3
StError	184	Covered	T1,T2,T3
StErrorOutstanding	203	Covered	T1,T2,T3
StFlush	184	Covered	T1,T52,T10
StOutstanding	174	Covered	T1,T52,T10

transitions	Line No.	Covered	Tests
StActive->StOutstanding	174	Covered	T1,T52,T10
StError->StErrorOutstanding	203	Covered	T1,T2,T3
StErrorOutstanding->StActive	211	Covered	T1,T2,T3
StFlush->StActive	196	Covered	T1,T52,T75
StFlush->StError	194	Covered	T1,T10,T36
StOutstanding->StError	184	Covered	T76,T62,T78
StOutstanding->StFlush	184	Covered	T1,T52,T10

---

Branch Coverage for Instance : tb.dut.u_tlul_lc_gate_rom

	Line No.	Total	Covered	Percent
Branches		23	22	95.65
IF	144	2	2	100.00
IF	153	4	4	100.00
CASE	171	13	12	92.31
IF	234	2	2	100.00
IF	239	2	2	100.00

144          `PRIM_FLOP_SPARSE_FSM(u_state_regs, state_d, state_q, state_e, StError)
             -1-                                                                       
             ==>                                                                       
             ==>                                                                       

Branches:

-1-	Status	Tests
1	Covered	T1,T2,T3
0	Covered	T1,T2,T3

153            if (!rst_ni) begin
               -1-  
154              outstanding_txn <= '0;
                 ==>
155            end else if (a_ack && !d_ack) begin
                        -2-  
156              outstanding_txn <= outstanding_txn + 1'b1;
                 ==>
157            end else if (d_ack && !a_ack) begin
                        -3-  
158              outstanding_txn <= outstanding_txn - 1'b1;
                 ==>
159            end
               MISSING_ELSE
               ==>

Branches:

-1-	-2-	-3-	Status	Tests
1	-	-	Covered	T1,T2,T3
0	1	-	Covered	T1,T2,T3
0	0	1	Covered	T1,T2,T3
0	0	0	Covered	T1,T2,T3

171            unique case (state_q)
                      -1-  
172              StActive: begin
173                if (lc_tx_test_false_loose(lc_en_i) || flush_req_i) begin
                   -2-  
174                  state_d = StOutstanding;
                     ==>
175                end
                   MISSING_ELSE
                   ==>
176                if (outstanding_txn != '0) begin
                   -3-  
177                  resp_pending_o = 1'b1;
                     ==>
178                end
                   MISSING_ELSE
                   ==>
179              end
180        
181              StOutstanding: begin
182                block_cmd = 1'b1;
183                if (outstanding_txn == '0) begin
                   -4-  
184                  state_d = lc_tx_test_false_loose(lc_en_i) ? StError : StFlush;
                     ==>
185                end else begin
186                  resp_pending_o = 1'b1;
                     ==>
187                end
188              end
189        
190              StFlush: begin
191                block_cmd = 1'b1;
192                flush_ack_o = 1'b1;
193                if (lc_tx_test_false_loose(lc_en_i)) begin
                   -5-  
194                  state_d = StError;
                     ==>
195                end else if (!flush_req_i) begin
                            -6-  
196                  state_d = StActive;
                     ==>
197                end
                   MISSING_ELSE
                   ==>
198              end
199        
200              StError: begin
201                err_en = On;
202                if (lc_tx_test_true_strict(lc_en_i)) begin
                   -7-  
203                  state_d = StErrorOutstanding;
                     ==>
204                end
                   MISSING_ELSE
                   ==>
205              end
206        
207              StErrorOutstanding: begin
208                err_en = On;
209                block_cmd = 1'b1;
210                if (outstanding_txn == '0) begin
                   -8-  
211                  state_d = StActive;
                     ==>
212                end
                   MISSING_ELSE
                   ==>
213              end
214        
215              default: begin
216                err_o = 1'b1;
                   ==> (Excluded)
Exclude Annotation: VC_COV_UNR

Branches:

-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	Status	Tests	Exclude Annotation
StActive	1	-	-	-	-	-	-	Covered	T1,T52,T10
StActive	0	-	-	-	-	-	-	Covered	T1,T2,T3
StActive	-	1	-	-	-	-	-	Covered	T1,T2,T3
StActive	-	0	-	-	-	-	-	Covered	T1,T2,T3
StOutstanding	-	-	1	-	-	-	-	Covered	T1,T52,T10
StOutstanding	-	-	0	-	-	-	-	Covered	T22
StFlush	-	-	-	1	-	-	-	Covered	T1,T10,T36
StFlush	-	-	-	0	1	-	-	Covered	T1,T52,T75
StFlush	-	-	-	0	0	-	-	Covered	T1,T52,T10
StError	-	-	-	-	-	1	-	Covered	T1,T2,T3
StError	-	-	-	-	-	0	-	Covered	T1,T2,T3
StErrorOutstanding	-	-	-	-	-	-	1	Covered	T1,T2,T3
StErrorOutstanding	-	-	-	-	-	-	0	Not Covered
default	-	-	-	-	-	-	-	Excluded	T48,T79	VC_COV_UNR

234            if (lc_tx_test_true_loose(err_en)) begin
               -1-  
235              tl_h2d_error  = tl_h2d_i;
                 ==>
236              tl_d2h_o      = tl_d2h_error;
237            end
               MISSING_ELSE
               ==>

Branches:

-1-	Status	Tests
1	Covered	T1,T2,T3
0	Covered	T1,T2,T3

239            if (block_cmd) begin
               -1-  
240              tl_d2h_o.a_ready = 1'b0;
                 ==>
241              tl_h2d_int[0].a_valid = 1'b0;
242              tl_h2d_error.a_valid = 1'b0;
243            end
               MISSING_ELSE
               ==>

Branches:

-1-	Status	Tests
1	Covered	T1,T2,T3
0	Covered	T1,T2,T3

---

Assert Coverage for Instance : tb.dut.u_tlul_lc_gate_rom

	Total	Attempted	Percent	Succeeded/Matched	Percent
Assertions	2	2	100.00	1	50.00
Cover properties	0	0		0
Cover sequences	0	0		0
Total	2	2	100.00	1	50.00

---

Assertion Details

Name	Attempts	Real Successes	Failures	Incomplete
OutStandingOvfl_A	44604544	0	0	0
u_state_regs_A	44604540	44530259	0	0

OutStandingOvfl_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	44604544	0	0	0

u_state_regs_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	44604540	44530259	0	0
T1	28956	28644	0	0
T2	14483	14404	0	0
T3	24130	24066	0	0
T4	8355	8274	0	0
T5	32484	32402	0	0
T6	6612	6558	0	0
T25	16723	16661	0	0
T35	33380	33329	0	0
T39	2034	1958	0	0
T42	37296	37235	0	0