[hmac,dv] Skip msg_length check when reset

- when a reset a is happening, the HMAC DV env is not really robust. Some tasks are still ongoing and would require to be killed. A temporary fix has been proposed to skip the msg_length check when a Save and Restore task is ongoing when a reset is triggered. A better approach will be put in place later when a proper reset agent will be used. Signed-off-by: Martin Velay <[email protected]>
lowRISC · Dec 23, 2024 · 7a2634a · 7a2634a
1 parent 2a96452
commit 7a2634a
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/hw/ip/hmac/dv/env/seq_lib/hmac_base_vseq.sv b/hw/ip/hmac/dv/env/seq_lib/hmac_base_vseq.sv
@@ -714,7 +714,12 @@ task hmac_base_vseq::sar_different_context();
           csr_spinwait(.ptr(ral.intr_state.hmac_done), .exp_data(1'b1));
           // Check message length -> TODO (#23562) move to the SCB when removing sar_skip_ctxt
           csr_rd_msg_length(msg_length_rd);
-          `DV_CHECK_EQ(msg_length_rd, msg_length_rand+msg_b.size()*8)
+          // Check if reset hasn't been triggered before doing this check
+          if (cfg.under_reset) begin
+            return;
+          end else begin
+            `DV_CHECK_EQ(msg_length_rd, msg_length_rand+msg_b.size()*8)
+          end
         end
   endcase
   // Clear the interrupt.