Async reset done in IFC

2020-09-30 15:21:46 +05:00 · 2020-09-30 15:21:46 +05:00 · 2b18aacc5a
parent 53681a9b6f
commit 2b18aacc5a
7 changed files with 292 additions and 290 deletions
--- a/el2_ifu_ifc_ctrl.fir
+++ b/el2_ifu_ifc_ctrl.fir
@ -3,7 +3,7 @@ circuit el2_ifu_ifc_ctrl :
  module el2_ifu_ifc_ctrl : 
    input clock : Clock
    input reset : AsyncReset
-    output io : {flip active_clk : UInt<1>, flip scan_mode : UInt<1>, flip ic_hit_f : UInt<1>, flip ifu_ic_mb_empty : UInt<1>, flip ifu_fb_consume1 : UInt<1>, flip ifu_fb_consume2 : UInt<1>, flip dec_tlu_flush_noredir_wb : UInt<1>, flip exu_flush_final : UInt<1>, flip exu_flush_path_final : UInt<31>, flip ifu_bp_hit_taken_f : UInt<1>, flip ifu_bp_btb_target_f : UInt<31>, flip ic_dma_active : UInt<1>, flip ic_write_stall : UInt<1>, flip dma_iccm_stall_any : UInt<1>, flip dec_tlu_mrac_ff : UInt<32>, ifc_fetch_addr_f : UInt<31>, ifc_fetch_addr_bf : UInt<31>, ifc_fetch_req_f : UInt<1>, ifu_pmu_fetch_stall : UInt<1>, ifc_fetch_uncacheable_bf : UInt<1>, ifc_fetch_req_bf : UInt<1>, ifc_fetch_req_bf_raw : UInt<1>, ifc_iccm_access_bf : UInt<1>, ifc_region_acc_fault_bf : UInt<1>, ifc_dma_access_ok : UInt<1>}
+    output io : {flip free_clk : Clock, flip active_clk : UInt<1>, flip scan_mode : UInt<1>, flip ic_hit_f : UInt<1>, flip ifu_ic_mb_empty : UInt<1>, flip ifu_fb_consume1 : UInt<1>, flip ifu_fb_consume2 : UInt<1>, flip dec_tlu_flush_noredir_wb : UInt<1>, flip exu_flush_final : UInt<1>, flip exu_flush_path_final : UInt<31>, flip ifu_bp_hit_taken_f : UInt<1>, flip ifu_bp_btb_target_f : UInt<31>, flip ic_dma_active : UInt<1>, flip ic_write_stall : UInt<1>, flip dma_iccm_stall_any : UInt<1>, flip dec_tlu_mrac_ff : UInt<32>, ifc_fetch_addr_f : UInt<31>, ifc_fetch_addr_bf : UInt<31>, ifc_fetch_req_f : UInt<1>, ifu_pmu_fetch_stall : UInt<1>, ifc_fetch_uncacheable_bf : UInt<1>, ifc_fetch_req_bf : UInt<1>, ifc_fetch_req_bf_raw : UInt<1>, ifc_iccm_access_bf : UInt<1>, ifc_region_acc_fault_bf : UInt<1>, ifc_dma_access_ok : UInt<1>}
    
    wire fetch_addr_bf : UInt<32>
    fetch_addr_bf <= UInt<1>("h00")
@ -45,31 +45,31 @@ circuit el2_ifu_ifc_ctrl :
    state <= UInt<1>("h00")
    wire dma_iccm_stall_any_f : UInt<1>
    dma_iccm_stall_any_f <= UInt<1>("h00")
-    node dma_stall = or(io.ic_dma_active, dma_iccm_stall_any_f) @[el2_ifu_ifc_ctrl.scala 60:36]
-    reg _T : UInt<1>, clock with : (reset => (reset, UInt<1>("h00"))) @[el2_ifu_ifc_ctrl.scala 61:34]
-    _T <= io.dma_iccm_stall_any @[el2_ifu_ifc_ctrl.scala 61:34]
-    dma_iccm_stall_any_f <= _T @[el2_ifu_ifc_ctrl.scala 61:24]
-    reg _T_1 : UInt<1>, clock with : (reset => (reset, UInt<1>("h00"))) @[el2_ifu_ifc_ctrl.scala 63:20]
-    _T_1 <= miss_f @[el2_ifu_ifc_ctrl.scala 63:20]
-    miss_a <= _T_1 @[el2_ifu_ifc_ctrl.scala 63:10]
-    node _T_2 = eq(io.exu_flush_final, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 65:26]
-    node _T_3 = eq(io.ifc_fetch_req_f, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 65:49]
-    node _T_4 = eq(io.ic_hit_f, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 65:71]
-    node _T_5 = or(_T_3, _T_4) @[el2_ifu_ifc_ctrl.scala 65:69]
-    node sel_last_addr_bf = and(_T_2, _T_5) @[el2_ifu_ifc_ctrl.scala 65:46]
-    node _T_6 = eq(io.exu_flush_final, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 66:26]
-    node _T_7 = and(_T_6, io.ifc_fetch_req_f) @[el2_ifu_ifc_ctrl.scala 66:46]
-    node _T_8 = and(_T_7, io.ifu_bp_hit_taken_f) @[el2_ifu_ifc_ctrl.scala 66:67]
-    node sel_btb_addr_bf = and(_T_8, io.ic_hit_f) @[el2_ifu_ifc_ctrl.scala 66:92]
-    node _T_9 = eq(io.exu_flush_final, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 67:26]
-    node _T_10 = and(_T_9, io.ifc_fetch_req_f) @[el2_ifu_ifc_ctrl.scala 67:46]
-    node _T_11 = eq(io.ifu_bp_hit_taken_f, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 67:69]
-    node _T_12 = and(_T_10, _T_11) @[el2_ifu_ifc_ctrl.scala 67:67]
-    node sel_next_addr_bf = and(_T_12, io.ic_hit_f) @[el2_ifu_ifc_ctrl.scala 67:92]
-    node _T_13 = bits(io.exu_flush_final, 0, 0) @[el2_ifu_ifc_ctrl.scala 70:56]
-    node _T_14 = bits(sel_last_addr_bf, 0, 0) @[el2_ifu_ifc_ctrl.scala 71:46]
-    node _T_15 = bits(sel_btb_addr_bf, 0, 0) @[el2_ifu_ifc_ctrl.scala 72:45]
-    node _T_16 = bits(sel_next_addr_bf, 0, 0) @[el2_ifu_ifc_ctrl.scala 73:46]
+    node dma_stall = or(io.ic_dma_active, dma_iccm_stall_any_f) @[el2_ifu_ifc_ctrl.scala 61:36]
+    reg _T : UInt<1>, io.free_clk with : (reset => (reset, UInt<1>("h00"))) @[el2_ifu_ifc_ctrl.scala 62:58]
+    _T <= io.dma_iccm_stall_any @[el2_ifu_ifc_ctrl.scala 62:58]
+    dma_iccm_stall_any_f <= _T @[el2_ifu_ifc_ctrl.scala 62:24]
+    reg _T_1 : UInt<1>, io.free_clk with : (reset => (reset, UInt<1>("h00"))) @[el2_ifu_ifc_ctrl.scala 64:44]
+    _T_1 <= miss_f @[el2_ifu_ifc_ctrl.scala 64:44]
+    miss_a <= _T_1 @[el2_ifu_ifc_ctrl.scala 64:10]
+    node _T_2 = eq(io.exu_flush_final, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 66:26]
+    node _T_3 = eq(io.ifc_fetch_req_f, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 66:49]
+    node _T_4 = eq(io.ic_hit_f, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 66:71]
+    node _T_5 = or(_T_3, _T_4) @[el2_ifu_ifc_ctrl.scala 66:69]
+    node sel_last_addr_bf = and(_T_2, _T_5) @[el2_ifu_ifc_ctrl.scala 66:46]
+    node _T_6 = eq(io.exu_flush_final, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 67:26]
+    node _T_7 = and(_T_6, io.ifc_fetch_req_f) @[el2_ifu_ifc_ctrl.scala 67:46]
+    node _T_8 = and(_T_7, io.ifu_bp_hit_taken_f) @[el2_ifu_ifc_ctrl.scala 67:67]
+    node sel_btb_addr_bf = and(_T_8, io.ic_hit_f) @[el2_ifu_ifc_ctrl.scala 67:92]
+    node _T_9 = eq(io.exu_flush_final, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 68:26]
+    node _T_10 = and(_T_9, io.ifc_fetch_req_f) @[el2_ifu_ifc_ctrl.scala 68:46]
+    node _T_11 = eq(io.ifu_bp_hit_taken_f, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 68:69]
+    node _T_12 = and(_T_10, _T_11) @[el2_ifu_ifc_ctrl.scala 68:67]
+    node sel_next_addr_bf = and(_T_12, io.ic_hit_f) @[el2_ifu_ifc_ctrl.scala 68:92]
+    node _T_13 = bits(io.exu_flush_final, 0, 0) @[el2_ifu_ifc_ctrl.scala 71:56]
+    node _T_14 = bits(sel_last_addr_bf, 0, 0) @[el2_ifu_ifc_ctrl.scala 72:46]
+    node _T_15 = bits(sel_btb_addr_bf, 0, 0) @[el2_ifu_ifc_ctrl.scala 73:45]
+    node _T_16 = bits(sel_next_addr_bf, 0, 0) @[el2_ifu_ifc_ctrl.scala 74:46]
    node _T_17 = mux(_T_13, io.exu_flush_path_final, UInt<1>("h00")) @[Mux.scala 27:72]
    node _T_18 = mux(_T_14, io.ifc_fetch_addr_f, UInt<1>("h00")) @[Mux.scala 27:72]
    node _T_19 = mux(_T_15, io.ifu_bp_btb_target_f, UInt<1>("h00")) @[Mux.scala 27:72]
@ -79,118 +79,118 @@ circuit el2_ifu_ifc_ctrl :
    node _T_23 = or(_T_22, _T_20) @[Mux.scala 27:72]
    wire _T_24 : UInt<32> @[Mux.scala 27:72]
    _T_24 <= _T_23 @[Mux.scala 27:72]
-    io.ifc_fetch_addr_bf <= _T_24 @[el2_ifu_ifc_ctrl.scala 70:24]
-    line_wrap <= UInt<1>("h00") @[el2_ifu_ifc_ctrl.scala 77:13]
-    node _T_25 = bits(line_wrap, 0, 0) @[el2_ifu_ifc_ctrl.scala 78:47]
-    node _T_26 = bits(io.ifc_fetch_addr_f, 0, 0) @[el2_ifu_ifc_ctrl.scala 78:75]
-    node fetch_addr_next_1 = mux(_T_25, UInt<1>("h00"), _T_26) @[el2_ifu_ifc_ctrl.scala 78:30]
-    node _T_27 = bits(io.ifc_fetch_addr_f, 30, 1) @[el2_ifu_ifc_ctrl.scala 79:45]
-    node _T_28 = add(_T_27, UInt<1>("h01")) @[el2_ifu_ifc_ctrl.scala 79:51]
-    node _T_29 = tail(_T_28, 1) @[el2_ifu_ifc_ctrl.scala 79:51]
+    io.ifc_fetch_addr_bf <= _T_24 @[el2_ifu_ifc_ctrl.scala 71:24]
+    line_wrap <= UInt<1>("h00") @[el2_ifu_ifc_ctrl.scala 78:13]
+    node _T_25 = bits(line_wrap, 0, 0) @[el2_ifu_ifc_ctrl.scala 79:47]
+    node _T_26 = bits(io.ifc_fetch_addr_f, 0, 0) @[el2_ifu_ifc_ctrl.scala 79:75]
+    node fetch_addr_next_1 = mux(_T_25, UInt<1>("h00"), _T_26) @[el2_ifu_ifc_ctrl.scala 79:30]
+    node _T_27 = bits(io.ifc_fetch_addr_f, 30, 1) @[el2_ifu_ifc_ctrl.scala 80:45]
+    node _T_28 = add(_T_27, UInt<1>("h01")) @[el2_ifu_ifc_ctrl.scala 80:51]
+    node _T_29 = tail(_T_28, 1) @[el2_ifu_ifc_ctrl.scala 80:51]
    node _T_30 = cat(_T_29, UInt<1>("h00")) @[Cat.scala 29:58]
-    fetch_addr_next <= _T_30 @[el2_ifu_ifc_ctrl.scala 79:19]
-    node _T_31 = not(idle) @[el2_ifu_ifc_ctrl.scala 82:30]
-    io.ifc_fetch_req_bf_raw <= _T_31 @[el2_ifu_ifc_ctrl.scala 82:27]
-    node _T_32 = or(io.ifu_fb_consume2, io.ifu_fb_consume1) @[el2_ifu_ifc_ctrl.scala 84:91]
-    node _T_33 = eq(_T_32, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 84:70]
-    node _T_34 = and(fb_full_f_ns, _T_33) @[el2_ifu_ifc_ctrl.scala 84:68]
-    node _T_35 = eq(_T_34, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 84:53]
-    node _T_36 = and(io.ifc_fetch_req_bf_raw, _T_35) @[el2_ifu_ifc_ctrl.scala 84:51]
-    node _T_37 = eq(dma_stall, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 85:5]
-    node _T_38 = and(_T_36, _T_37) @[el2_ifu_ifc_ctrl.scala 84:114]
-    node _T_39 = eq(io.ic_write_stall, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 85:18]
-    node _T_40 = and(_T_38, _T_39) @[el2_ifu_ifc_ctrl.scala 85:16]
-    node _T_41 = eq(io.dec_tlu_flush_noredir_wb, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 85:39]
-    node _T_42 = and(_T_40, _T_41) @[el2_ifu_ifc_ctrl.scala 85:37]
-    io.ifc_fetch_req_bf <= _T_42 @[el2_ifu_ifc_ctrl.scala 84:23]
-    node _T_43 = or(io.exu_flush_final, io.ifc_fetch_req_f) @[el2_ifu_ifc_ctrl.scala 87:37]
-    fetch_bf_en <= _T_43 @[el2_ifu_ifc_ctrl.scala 87:15]
-    node _T_44 = eq(io.ic_hit_f, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 89:34]
-    node _T_45 = and(io.ifc_fetch_req_f, _T_44) @[el2_ifu_ifc_ctrl.scala 89:32]
-    node _T_46 = eq(io.exu_flush_final, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 89:49]
-    node _T_47 = and(_T_45, _T_46) @[el2_ifu_ifc_ctrl.scala 89:47]
-    miss_f <= _T_47 @[el2_ifu_ifc_ctrl.scala 89:10]
-    node _T_48 = or(io.ifu_ic_mb_empty, io.exu_flush_final) @[el2_ifu_ifc_ctrl.scala 91:39]
-    node _T_49 = eq(dma_stall, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 91:63]
-    node _T_50 = and(_T_48, _T_49) @[el2_ifu_ifc_ctrl.scala 91:61]
-    node _T_51 = eq(miss_f, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 91:76]
-    node _T_52 = and(_T_50, _T_51) @[el2_ifu_ifc_ctrl.scala 91:74]
-    node _T_53 = eq(miss_a, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 91:86]
-    node _T_54 = and(_T_52, _T_53) @[el2_ifu_ifc_ctrl.scala 91:84]
-    mb_empty_mod <= _T_54 @[el2_ifu_ifc_ctrl.scala 91:16]
-    node _T_55 = and(io.exu_flush_final, io.dec_tlu_flush_noredir_wb) @[el2_ifu_ifc_ctrl.scala 93:35]
-    goto_idle <= _T_55 @[el2_ifu_ifc_ctrl.scala 93:13]
-    node _T_56 = eq(io.dec_tlu_flush_noredir_wb, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 95:38]
-    node _T_57 = and(io.exu_flush_final, _T_56) @[el2_ifu_ifc_ctrl.scala 95:36]
-    node _T_58 = and(_T_57, idle) @[el2_ifu_ifc_ctrl.scala 95:67]
-    leave_idle <= _T_58 @[el2_ifu_ifc_ctrl.scala 95:14]
-    node _T_59 = bits(state, 1, 1) @[el2_ifu_ifc_ctrl.scala 97:29]
-    node _T_60 = eq(_T_59, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 97:23]
-    node _T_61 = bits(state, 0, 0) @[el2_ifu_ifc_ctrl.scala 97:40]
-    node _T_62 = and(_T_60, _T_61) @[el2_ifu_ifc_ctrl.scala 97:33]
-    node _T_63 = and(_T_62, miss_f) @[el2_ifu_ifc_ctrl.scala 97:44]
-    node _T_64 = eq(goto_idle, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 97:55]
-    node _T_65 = and(_T_63, _T_64) @[el2_ifu_ifc_ctrl.scala 97:53]
-    node _T_66 = bits(state, 1, 1) @[el2_ifu_ifc_ctrl.scala 98:11]
-    node _T_67 = eq(mb_empty_mod, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 98:17]
-    node _T_68 = and(_T_66, _T_67) @[el2_ifu_ifc_ctrl.scala 98:15]
-    node _T_69 = eq(goto_idle, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 98:33]
-    node _T_70 = and(_T_68, _T_69) @[el2_ifu_ifc_ctrl.scala 98:31]
-    node next_state_1 = or(_T_65, _T_70) @[el2_ifu_ifc_ctrl.scala 97:67]
-    node _T_71 = eq(goto_idle, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 100:23]
-    node _T_72 = and(_T_71, leave_idle) @[el2_ifu_ifc_ctrl.scala 100:34]
-    node _T_73 = bits(state, 0, 0) @[el2_ifu_ifc_ctrl.scala 100:56]
-    node _T_74 = eq(goto_idle, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 100:62]
-    node _T_75 = and(_T_73, _T_74) @[el2_ifu_ifc_ctrl.scala 100:60]
-    node next_state_0 = or(_T_72, _T_75) @[el2_ifu_ifc_ctrl.scala 100:48]
+    fetch_addr_next <= _T_30 @[el2_ifu_ifc_ctrl.scala 80:19]
+    node _T_31 = not(idle) @[el2_ifu_ifc_ctrl.scala 83:30]
+    io.ifc_fetch_req_bf_raw <= _T_31 @[el2_ifu_ifc_ctrl.scala 83:27]
+    node _T_32 = or(io.ifu_fb_consume2, io.ifu_fb_consume1) @[el2_ifu_ifc_ctrl.scala 85:91]
+    node _T_33 = eq(_T_32, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 85:70]
+    node _T_34 = and(fb_full_f_ns, _T_33) @[el2_ifu_ifc_ctrl.scala 85:68]
+    node _T_35 = eq(_T_34, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 85:53]
+    node _T_36 = and(io.ifc_fetch_req_bf_raw, _T_35) @[el2_ifu_ifc_ctrl.scala 85:51]
+    node _T_37 = eq(dma_stall, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 86:5]
+    node _T_38 = and(_T_36, _T_37) @[el2_ifu_ifc_ctrl.scala 85:114]
+    node _T_39 = eq(io.ic_write_stall, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 86:18]
+    node _T_40 = and(_T_38, _T_39) @[el2_ifu_ifc_ctrl.scala 86:16]
+    node _T_41 = eq(io.dec_tlu_flush_noredir_wb, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 86:39]
+    node _T_42 = and(_T_40, _T_41) @[el2_ifu_ifc_ctrl.scala 86:37]
+    io.ifc_fetch_req_bf <= _T_42 @[el2_ifu_ifc_ctrl.scala 85:23]
+    node _T_43 = or(io.exu_flush_final, io.ifc_fetch_req_f) @[el2_ifu_ifc_ctrl.scala 88:37]
+    fetch_bf_en <= _T_43 @[el2_ifu_ifc_ctrl.scala 88:15]
+    node _T_44 = eq(io.ic_hit_f, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 90:34]
+    node _T_45 = and(io.ifc_fetch_req_f, _T_44) @[el2_ifu_ifc_ctrl.scala 90:32]
+    node _T_46 = eq(io.exu_flush_final, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 90:49]
+    node _T_47 = and(_T_45, _T_46) @[el2_ifu_ifc_ctrl.scala 90:47]
+    miss_f <= _T_47 @[el2_ifu_ifc_ctrl.scala 90:10]
+    node _T_48 = or(io.ifu_ic_mb_empty, io.exu_flush_final) @[el2_ifu_ifc_ctrl.scala 92:39]
+    node _T_49 = eq(dma_stall, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 92:63]
+    node _T_50 = and(_T_48, _T_49) @[el2_ifu_ifc_ctrl.scala 92:61]
+    node _T_51 = eq(miss_f, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 92:76]
+    node _T_52 = and(_T_50, _T_51) @[el2_ifu_ifc_ctrl.scala 92:74]
+    node _T_53 = eq(miss_a, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 92:86]
+    node _T_54 = and(_T_52, _T_53) @[el2_ifu_ifc_ctrl.scala 92:84]
+    mb_empty_mod <= _T_54 @[el2_ifu_ifc_ctrl.scala 92:16]
+    node _T_55 = and(io.exu_flush_final, io.dec_tlu_flush_noredir_wb) @[el2_ifu_ifc_ctrl.scala 94:35]
+    goto_idle <= _T_55 @[el2_ifu_ifc_ctrl.scala 94:13]
+    node _T_56 = eq(io.dec_tlu_flush_noredir_wb, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 96:38]
+    node _T_57 = and(io.exu_flush_final, _T_56) @[el2_ifu_ifc_ctrl.scala 96:36]
+    node _T_58 = and(_T_57, idle) @[el2_ifu_ifc_ctrl.scala 96:67]
+    leave_idle <= _T_58 @[el2_ifu_ifc_ctrl.scala 96:14]
+    node _T_59 = bits(state, 1, 1) @[el2_ifu_ifc_ctrl.scala 98:29]
+    node _T_60 = eq(_T_59, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 98:23]
+    node _T_61 = bits(state, 0, 0) @[el2_ifu_ifc_ctrl.scala 98:40]
+    node _T_62 = and(_T_60, _T_61) @[el2_ifu_ifc_ctrl.scala 98:33]
+    node _T_63 = and(_T_62, miss_f) @[el2_ifu_ifc_ctrl.scala 98:44]
+    node _T_64 = eq(goto_idle, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 98:55]
+    node _T_65 = and(_T_63, _T_64) @[el2_ifu_ifc_ctrl.scala 98:53]
+    node _T_66 = bits(state, 1, 1) @[el2_ifu_ifc_ctrl.scala 99:11]
+    node _T_67 = eq(mb_empty_mod, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 99:17]
+    node _T_68 = and(_T_66, _T_67) @[el2_ifu_ifc_ctrl.scala 99:15]
+    node _T_69 = eq(goto_idle, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 99:33]
+    node _T_70 = and(_T_68, _T_69) @[el2_ifu_ifc_ctrl.scala 99:31]
+    node next_state_1 = or(_T_65, _T_70) @[el2_ifu_ifc_ctrl.scala 98:67]
+    node _T_71 = eq(goto_idle, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 101:23]
+    node _T_72 = and(_T_71, leave_idle) @[el2_ifu_ifc_ctrl.scala 101:34]
+    node _T_73 = bits(state, 0, 0) @[el2_ifu_ifc_ctrl.scala 101:56]
+    node _T_74 = eq(goto_idle, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 101:62]
+    node _T_75 = and(_T_73, _T_74) @[el2_ifu_ifc_ctrl.scala 101:60]
+    node next_state_0 = or(_T_72, _T_75) @[el2_ifu_ifc_ctrl.scala 101:48]
    node _T_76 = cat(next_state_1, next_state_0) @[Cat.scala 29:58]
-    reg _T_77 : UInt, clock with : (reset => (reset, UInt<1>("h00"))) @[el2_ifu_ifc_ctrl.scala 102:19]
-    _T_77 <= _T_76 @[el2_ifu_ifc_ctrl.scala 102:19]
-    state <= _T_77 @[el2_ifu_ifc_ctrl.scala 102:9]
-    flush_fb <= io.exu_flush_final @[el2_ifu_ifc_ctrl.scala 104:12]
-    node _T_78 = eq(io.ifu_fb_consume2, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 106:38]
-    node _T_79 = and(io.ifu_fb_consume1, _T_78) @[el2_ifu_ifc_ctrl.scala 106:36]
-    node _T_80 = eq(io.ifc_fetch_req_f, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 106:61]
-    node _T_81 = or(_T_80, miss_f) @[el2_ifu_ifc_ctrl.scala 106:81]
-    node _T_82 = and(_T_79, _T_81) @[el2_ifu_ifc_ctrl.scala 106:58]
-    node _T_83 = and(io.ifu_fb_consume2, io.ifc_fetch_req_f) @[el2_ifu_ifc_ctrl.scala 107:25]
-    node _T_84 = or(_T_82, _T_83) @[el2_ifu_ifc_ctrl.scala 106:92]
-    fb_right <= _T_84 @[el2_ifu_ifc_ctrl.scala 106:12]
-    node _T_85 = not(io.ifc_fetch_req_f) @[el2_ifu_ifc_ctrl.scala 109:39]
-    node _T_86 = or(_T_85, miss_f) @[el2_ifu_ifc_ctrl.scala 109:59]
-    node _T_87 = and(io.ifu_fb_consume2, _T_86) @[el2_ifu_ifc_ctrl.scala 109:36]
-    fb_right2 <= _T_87 @[el2_ifu_ifc_ctrl.scala 109:13]
-    node _T_88 = or(io.ifu_fb_consume1, io.ifu_fb_consume2) @[el2_ifu_ifc_ctrl.scala 110:56]
-    node _T_89 = eq(_T_88, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 110:35]
-    node _T_90 = and(io.ifc_fetch_req_f, _T_89) @[el2_ifu_ifc_ctrl.scala 110:33]
-    node _T_91 = eq(miss_f, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 110:80]
-    node _T_92 = and(_T_90, _T_91) @[el2_ifu_ifc_ctrl.scala 110:78]
-    fb_left <= _T_92 @[el2_ifu_ifc_ctrl.scala 110:11]
-    node _T_93 = bits(flush_fb, 0, 0) @[el2_ifu_ifc_ctrl.scala 112:37]
-    node _T_94 = eq(flush_fb, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 113:6]
-    node _T_95 = and(_T_94, fb_right) @[el2_ifu_ifc_ctrl.scala 113:16]
-    node _T_96 = bits(_T_95, 0, 0) @[el2_ifu_ifc_ctrl.scala 113:28]
-    node _T_97 = bits(fb_write_f, 3, 1) @[el2_ifu_ifc_ctrl.scala 113:62]
+    reg _T_77 : UInt, clock with : (reset => (reset, UInt<1>("h00"))) @[el2_ifu_ifc_ctrl.scala 103:19]
+    _T_77 <= _T_76 @[el2_ifu_ifc_ctrl.scala 103:19]
+    state <= _T_77 @[el2_ifu_ifc_ctrl.scala 103:9]
+    flush_fb <= io.exu_flush_final @[el2_ifu_ifc_ctrl.scala 105:12]
+    node _T_78 = eq(io.ifu_fb_consume2, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 107:38]
+    node _T_79 = and(io.ifu_fb_consume1, _T_78) @[el2_ifu_ifc_ctrl.scala 107:36]
+    node _T_80 = eq(io.ifc_fetch_req_f, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 107:61]
+    node _T_81 = or(_T_80, miss_f) @[el2_ifu_ifc_ctrl.scala 107:81]
+    node _T_82 = and(_T_79, _T_81) @[el2_ifu_ifc_ctrl.scala 107:58]
+    node _T_83 = and(io.ifu_fb_consume2, io.ifc_fetch_req_f) @[el2_ifu_ifc_ctrl.scala 108:25]
+    node _T_84 = or(_T_82, _T_83) @[el2_ifu_ifc_ctrl.scala 107:92]
+    fb_right <= _T_84 @[el2_ifu_ifc_ctrl.scala 107:12]
+    node _T_85 = not(io.ifc_fetch_req_f) @[el2_ifu_ifc_ctrl.scala 110:39]
+    node _T_86 = or(_T_85, miss_f) @[el2_ifu_ifc_ctrl.scala 110:59]
+    node _T_87 = and(io.ifu_fb_consume2, _T_86) @[el2_ifu_ifc_ctrl.scala 110:36]
+    fb_right2 <= _T_87 @[el2_ifu_ifc_ctrl.scala 110:13]
+    node _T_88 = or(io.ifu_fb_consume1, io.ifu_fb_consume2) @[el2_ifu_ifc_ctrl.scala 111:56]
+    node _T_89 = eq(_T_88, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 111:35]
+    node _T_90 = and(io.ifc_fetch_req_f, _T_89) @[el2_ifu_ifc_ctrl.scala 111:33]
+    node _T_91 = eq(miss_f, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 111:80]
+    node _T_92 = and(_T_90, _T_91) @[el2_ifu_ifc_ctrl.scala 111:78]
+    fb_left <= _T_92 @[el2_ifu_ifc_ctrl.scala 111:11]
+    node _T_93 = bits(flush_fb, 0, 0) @[el2_ifu_ifc_ctrl.scala 113:37]
+    node _T_94 = eq(flush_fb, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 114:6]
+    node _T_95 = and(_T_94, fb_right) @[el2_ifu_ifc_ctrl.scala 114:16]
+    node _T_96 = bits(_T_95, 0, 0) @[el2_ifu_ifc_ctrl.scala 114:28]
+    node _T_97 = bits(fb_write_f, 3, 1) @[el2_ifu_ifc_ctrl.scala 114:62]
    node _T_98 = cat(UInt<1>("h00"), _T_97) @[Cat.scala 29:58]
-    node _T_99 = eq(flush_fb, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 114:6]
-    node _T_100 = and(_T_99, fb_right2) @[el2_ifu_ifc_ctrl.scala 114:16]
-    node _T_101 = bits(_T_100, 0, 0) @[el2_ifu_ifc_ctrl.scala 114:29]
-    node _T_102 = bits(fb_write_f, 3, 2) @[el2_ifu_ifc_ctrl.scala 114:63]
+    node _T_99 = eq(flush_fb, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 115:6]
+    node _T_100 = and(_T_99, fb_right2) @[el2_ifu_ifc_ctrl.scala 115:16]
+    node _T_101 = bits(_T_100, 0, 0) @[el2_ifu_ifc_ctrl.scala 115:29]
+    node _T_102 = bits(fb_write_f, 3, 2) @[el2_ifu_ifc_ctrl.scala 115:63]
    node _T_103 = cat(UInt<2>("h00"), _T_102) @[Cat.scala 29:58]
-    node _T_104 = eq(flush_fb, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 115:6]
-    node _T_105 = and(_T_104, fb_left) @[el2_ifu_ifc_ctrl.scala 115:16]
-    node _T_106 = bits(_T_105, 0, 0) @[el2_ifu_ifc_ctrl.scala 115:27]
-    node _T_107 = bits(fb_write_f, 2, 0) @[el2_ifu_ifc_ctrl.scala 115:51]
+    node _T_104 = eq(flush_fb, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 116:6]
+    node _T_105 = and(_T_104, fb_left) @[el2_ifu_ifc_ctrl.scala 116:16]
+    node _T_106 = bits(_T_105, 0, 0) @[el2_ifu_ifc_ctrl.scala 116:27]
+    node _T_107 = bits(fb_write_f, 2, 0) @[el2_ifu_ifc_ctrl.scala 116:51]
    node _T_108 = cat(_T_107, UInt<1>("h00")) @[Cat.scala 29:58]
-    node _T_109 = eq(flush_fb, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 116:6]
-    node _T_110 = eq(fb_right, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 116:18]
-    node _T_111 = and(_T_109, _T_110) @[el2_ifu_ifc_ctrl.scala 116:16]
-    node _T_112 = eq(fb_right2, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 116:30]
-    node _T_113 = and(_T_111, _T_112) @[el2_ifu_ifc_ctrl.scala 116:28]
-    node _T_114 = eq(fb_left, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 116:43]
-    node _T_115 = and(_T_113, _T_114) @[el2_ifu_ifc_ctrl.scala 116:41]
-    node _T_116 = bits(_T_115, 0, 0) @[el2_ifu_ifc_ctrl.scala 116:53]
-    node _T_117 = bits(fb_write_f, 3, 0) @[el2_ifu_ifc_ctrl.scala 116:73]
+    node _T_109 = eq(flush_fb, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 117:6]
+    node _T_110 = eq(fb_right, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 117:18]
+    node _T_111 = and(_T_109, _T_110) @[el2_ifu_ifc_ctrl.scala 117:16]
+    node _T_112 = eq(fb_right2, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 117:30]
+    node _T_113 = and(_T_111, _T_112) @[el2_ifu_ifc_ctrl.scala 117:28]
+    node _T_114 = eq(fb_left, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 117:43]
+    node _T_115 = and(_T_113, _T_114) @[el2_ifu_ifc_ctrl.scala 117:41]
+    node _T_116 = bits(_T_115, 0, 0) @[el2_ifu_ifc_ctrl.scala 117:53]
+    node _T_117 = bits(fb_write_f, 3, 0) @[el2_ifu_ifc_ctrl.scala 117:73]
    node _T_118 = mux(_T_93, UInt<4>("h01"), UInt<1>("h00")) @[Mux.scala 27:72]
    node _T_119 = mux(_T_96, _T_98, UInt<1>("h00")) @[Mux.scala 27:72]
    node _T_120 = mux(_T_101, _T_103, UInt<1>("h00")) @[Mux.scala 27:72]
@ -202,65 +202,65 @@ circuit el2_ifu_ifc_ctrl :
    node _T_126 = or(_T_125, _T_122) @[Mux.scala 27:72]
    wire _T_127 : UInt<4> @[Mux.scala 27:72]
    _T_127 <= _T_126 @[Mux.scala 27:72]
-    fb_write_ns <= _T_127 @[el2_ifu_ifc_ctrl.scala 112:15]
-    node _T_128 = bits(fb_write_ns, 3, 3) @[el2_ifu_ifc_ctrl.scala 119:38]
-    reg _T_129 : UInt<1>, clock with : (reset => (reset, UInt<1>("h00"))) @[el2_ifu_ifc_ctrl.scala 119:26]
-    _T_129 <= _T_128 @[el2_ifu_ifc_ctrl.scala 119:26]
-    fb_full_f_ns <= _T_129 @[el2_ifu_ifc_ctrl.scala 119:16]
-    node _T_130 = eq(state, UInt<2>("h00")) @[el2_ifu_ifc_ctrl.scala 121:17]
-    idle <= _T_130 @[el2_ifu_ifc_ctrl.scala 121:8]
-    node _T_131 = eq(state, UInt<2>("h03")) @[el2_ifu_ifc_ctrl.scala 122:16]
-    wfm <= _T_131 @[el2_ifu_ifc_ctrl.scala 122:7]
-    node _T_132 = bits(fb_write_ns, 3, 3) @[el2_ifu_ifc_ctrl.scala 124:30]
-    fb_full_f_ns <= _T_132 @[el2_ifu_ifc_ctrl.scala 124:16]
-    reg fb_full_f : UInt<1>, clock with : (reset => (reset, UInt<1>("h00"))) @[el2_ifu_ifc_ctrl.scala 125:26]
-    fb_full_f <= fb_full_f_ns @[el2_ifu_ifc_ctrl.scala 125:26]
-    reg _T_133 : UInt, clock with : (reset => (reset, UInt<1>("h00"))) @[el2_ifu_ifc_ctrl.scala 126:24]
-    _T_133 <= fb_write_ns @[el2_ifu_ifc_ctrl.scala 126:24]
-    fb_write_f <= _T_133 @[el2_ifu_ifc_ctrl.scala 126:14]
-    node _T_134 = or(io.ifu_fb_consume2, io.ifu_fb_consume1) @[el2_ifu_ifc_ctrl.scala 129:40]
-    node _T_135 = or(_T_134, io.exu_flush_final) @[el2_ifu_ifc_ctrl.scala 129:61]
-    node _T_136 = eq(_T_135, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 129:19]
-    node _T_137 = and(fb_full_f, _T_136) @[el2_ifu_ifc_ctrl.scala 129:17]
-    node _T_138 = or(_T_137, dma_stall) @[el2_ifu_ifc_ctrl.scala 129:84]
-    node _T_139 = and(io.ifc_fetch_req_bf_raw, _T_138) @[el2_ifu_ifc_ctrl.scala 128:60]
-    node _T_140 = or(wfm, _T_139) @[el2_ifu_ifc_ctrl.scala 128:33]
-    io.ifu_pmu_fetch_stall <= _T_140 @[el2_ifu_ifc_ctrl.scala 128:26]
+    fb_write_ns <= _T_127 @[el2_ifu_ifc_ctrl.scala 113:15]
+    node _T_128 = bits(fb_write_ns, 3, 3) @[el2_ifu_ifc_ctrl.scala 120:38]
+    reg _T_129 : UInt<1>, clock with : (reset => (reset, UInt<1>("h00"))) @[el2_ifu_ifc_ctrl.scala 120:26]
+    _T_129 <= _T_128 @[el2_ifu_ifc_ctrl.scala 120:26]
+    fb_full_f_ns <= _T_129 @[el2_ifu_ifc_ctrl.scala 120:16]
+    node _T_130 = eq(state, UInt<2>("h00")) @[el2_ifu_ifc_ctrl.scala 122:17]
+    idle <= _T_130 @[el2_ifu_ifc_ctrl.scala 122:8]
+    node _T_131 = eq(state, UInt<2>("h03")) @[el2_ifu_ifc_ctrl.scala 123:16]
+    wfm <= _T_131 @[el2_ifu_ifc_ctrl.scala 123:7]
+    node _T_132 = bits(fb_write_ns, 3, 3) @[el2_ifu_ifc_ctrl.scala 125:30]
+    fb_full_f_ns <= _T_132 @[el2_ifu_ifc_ctrl.scala 125:16]
+    reg fb_full_f : UInt<1>, clock with : (reset => (reset, UInt<1>("h00"))) @[el2_ifu_ifc_ctrl.scala 126:26]
+    fb_full_f <= fb_full_f_ns @[el2_ifu_ifc_ctrl.scala 126:26]
+    reg _T_133 : UInt, clock with : (reset => (reset, UInt<1>("h00"))) @[el2_ifu_ifc_ctrl.scala 127:24]
+    _T_133 <= fb_write_ns @[el2_ifu_ifc_ctrl.scala 127:24]
+    fb_write_f <= _T_133 @[el2_ifu_ifc_ctrl.scala 127:14]
+    node _T_134 = or(io.ifu_fb_consume2, io.ifu_fb_consume1) @[el2_ifu_ifc_ctrl.scala 130:40]
+    node _T_135 = or(_T_134, io.exu_flush_final) @[el2_ifu_ifc_ctrl.scala 130:61]
+    node _T_136 = eq(_T_135, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 130:19]
+    node _T_137 = and(fb_full_f, _T_136) @[el2_ifu_ifc_ctrl.scala 130:17]
+    node _T_138 = or(_T_137, dma_stall) @[el2_ifu_ifc_ctrl.scala 130:84]
+    node _T_139 = and(io.ifc_fetch_req_bf_raw, _T_138) @[el2_ifu_ifc_ctrl.scala 129:60]
+    node _T_140 = or(wfm, _T_139) @[el2_ifu_ifc_ctrl.scala 129:33]
+    io.ifu_pmu_fetch_stall <= _T_140 @[el2_ifu_ifc_ctrl.scala 129:26]
    node _T_141 = cat(io.ifc_fetch_addr_bf, UInt<1>("h00")) @[Cat.scala 29:58]
    node _T_142 = bits(_T_141, 31, 28) @[el2_lib.scala 211:25]
    node iccm_acc_in_region_bf = eq(_T_142, UInt<4>("h0e")) @[el2_lib.scala 211:47]
    node _T_143 = bits(_T_141, 31, 16) @[el2_lib.scala 214:14]
    node iccm_acc_in_range_bf = eq(_T_143, UInt<16>("h0ee00")) @[el2_lib.scala 214:29]
-    io.ifc_iccm_access_bf <= iccm_acc_in_range_bf @[el2_ifu_ifc_ctrl.scala 134:25]
-    node _T_144 = eq(io.ifc_iccm_access_bf, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 135:30]
-    node _T_145 = or(io.ifu_fb_consume2, io.ifu_fb_consume1) @[el2_ifu_ifc_ctrl.scala 136:39]
-    node _T_146 = eq(_T_145, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 136:18]
-    node _T_147 = and(fb_full_f, _T_146) @[el2_ifu_ifc_ctrl.scala 136:16]
-    node _T_148 = or(_T_144, _T_147) @[el2_ifu_ifc_ctrl.scala 135:53]
-    node _T_149 = eq(io.ifc_fetch_req_bf, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 137:13]
-    node _T_150 = and(wfm, _T_149) @[el2_ifu_ifc_ctrl.scala 137:11]
-    node _T_151 = or(_T_148, _T_150) @[el2_ifu_ifc_ctrl.scala 136:62]
-    node _T_152 = or(_T_151, idle) @[el2_ifu_ifc_ctrl.scala 137:35]
-    node _T_153 = eq(io.exu_flush_final, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 137:46]
-    node _T_154 = and(_T_152, _T_153) @[el2_ifu_ifc_ctrl.scala 137:44]
-    node _T_155 = or(_T_154, dma_iccm_stall_any_f) @[el2_ifu_ifc_ctrl.scala 137:67]
-    io.ifc_dma_access_ok <= _T_155 @[el2_ifu_ifc_ctrl.scala 135:24]
-    node _T_156 = not(iccm_acc_in_range_bf) @[el2_ifu_ifc_ctrl.scala 139:33]
-    node _T_157 = and(_T_156, iccm_acc_in_region_bf) @[el2_ifu_ifc_ctrl.scala 139:55]
-    io.ifc_region_acc_fault_bf <= _T_157 @[el2_ifu_ifc_ctrl.scala 139:30]
-    node _T_158 = bits(io.ifc_fetch_addr_bf, 30, 27) @[el2_ifu_ifc_ctrl.scala 140:78]
+    io.ifc_iccm_access_bf <= iccm_acc_in_range_bf @[el2_ifu_ifc_ctrl.scala 135:25]
+    node _T_144 = eq(io.ifc_iccm_access_bf, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 136:30]
+    node _T_145 = or(io.ifu_fb_consume2, io.ifu_fb_consume1) @[el2_ifu_ifc_ctrl.scala 137:39]
+    node _T_146 = eq(_T_145, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 137:18]
+    node _T_147 = and(fb_full_f, _T_146) @[el2_ifu_ifc_ctrl.scala 137:16]
+    node _T_148 = or(_T_144, _T_147) @[el2_ifu_ifc_ctrl.scala 136:53]
+    node _T_149 = eq(io.ifc_fetch_req_bf, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 138:13]
+    node _T_150 = and(wfm, _T_149) @[el2_ifu_ifc_ctrl.scala 138:11]
+    node _T_151 = or(_T_148, _T_150) @[el2_ifu_ifc_ctrl.scala 137:62]
+    node _T_152 = or(_T_151, idle) @[el2_ifu_ifc_ctrl.scala 138:35]
+    node _T_153 = eq(io.exu_flush_final, UInt<1>("h00")) @[el2_ifu_ifc_ctrl.scala 138:46]
+    node _T_154 = and(_T_152, _T_153) @[el2_ifu_ifc_ctrl.scala 138:44]
+    node _T_155 = or(_T_154, dma_iccm_stall_any_f) @[el2_ifu_ifc_ctrl.scala 138:67]
+    io.ifc_dma_access_ok <= _T_155 @[el2_ifu_ifc_ctrl.scala 136:24]
+    node _T_156 = not(iccm_acc_in_range_bf) @[el2_ifu_ifc_ctrl.scala 140:33]
+    node _T_157 = and(_T_156, iccm_acc_in_region_bf) @[el2_ifu_ifc_ctrl.scala 140:55]
+    io.ifc_region_acc_fault_bf <= _T_157 @[el2_ifu_ifc_ctrl.scala 140:30]
+    node _T_158 = bits(io.ifc_fetch_addr_bf, 30, 27) @[el2_ifu_ifc_ctrl.scala 141:78]
    node _T_159 = cat(_T_158, UInt<1>("h00")) @[Cat.scala 29:58]
-    node _T_160 = dshr(io.dec_tlu_mrac_ff, _T_159) @[el2_ifu_ifc_ctrl.scala 140:53]
-    node _T_161 = bits(_T_160, 0, 0) @[el2_ifu_ifc_ctrl.scala 140:53]
-    node _T_162 = not(_T_161) @[el2_ifu_ifc_ctrl.scala 140:34]
-    io.ifc_fetch_uncacheable_bf <= _T_162 @[el2_ifu_ifc_ctrl.scala 140:31]
-    reg _T_163 : UInt<1>, clock with : (reset => (reset, UInt<1>("h00"))) @[el2_ifu_ifc_ctrl.scala 142:32]
-    _T_163 <= io.ifc_fetch_req_bf @[el2_ifu_ifc_ctrl.scala 142:32]
-    io.ifc_fetch_req_f <= _T_163 @[el2_ifu_ifc_ctrl.scala 142:22]
-    node _T_164 = or(io.exu_flush_final, io.ifc_fetch_req_f) @[el2_ifu_ifc_ctrl.scala 144:88]
+    node _T_160 = dshr(io.dec_tlu_mrac_ff, _T_159) @[el2_ifu_ifc_ctrl.scala 141:53]
+    node _T_161 = bits(_T_160, 0, 0) @[el2_ifu_ifc_ctrl.scala 141:53]
+    node _T_162 = not(_T_161) @[el2_ifu_ifc_ctrl.scala 141:34]
+    io.ifc_fetch_uncacheable_bf <= _T_162 @[el2_ifu_ifc_ctrl.scala 141:31]
+    reg _T_163 : UInt<1>, clock with : (reset => (reset, UInt<1>("h00"))) @[el2_ifu_ifc_ctrl.scala 143:32]
+    _T_163 <= io.ifc_fetch_req_bf @[el2_ifu_ifc_ctrl.scala 143:32]
+    io.ifc_fetch_req_f <= _T_163 @[el2_ifu_ifc_ctrl.scala 143:22]
+    node _T_164 = or(io.exu_flush_final, io.ifc_fetch_req_f) @[el2_ifu_ifc_ctrl.scala 145:88]
    reg _T_165 : UInt, clock with : (reset => (reset, UInt<1>("h00"))) @[Reg.scala 27:20]
    when _T_164 : @[Reg.scala 28:19]
      _T_165 <= io.ifc_fetch_addr_bf @[Reg.scala 28:23]
      skip @[Reg.scala 28:19]
-    io.ifc_fetch_addr_f <= _T_165 @[el2_ifu_ifc_ctrl.scala 144:23]
+    io.ifc_fetch_addr_f <= _T_165 @[el2_ifu_ifc_ctrl.scala 145:23]
    
--- a/el2_ifu_ifc_ctrl.v
+++ b/el2_ifu_ifc_ctrl.v
@ -1,6 +1,7 @@
 module el2_ifu_ifc_ctrl(
  input         clock,
  input         reset,
+  input         io_free_clk,
  input         io_active_clk,
  input         io_scan_mode,
  input         io_ic_hit_f,
@ -36,134 +37,134 @@ module el2_ifu_ifc_ctrl(
  reg [31:0] _RAND_5;
  reg [31:0] _RAND_6;
 `endif // RANDOMIZE_REG_INIT
-  reg  dma_iccm_stall_any_f; // @[el2_ifu_ifc_ctrl.scala 61:34]
-  wire  dma_stall = io_ic_dma_active | dma_iccm_stall_any_f; // @[el2_ifu_ifc_ctrl.scala 60:36]
-  reg  miss_a; // @[el2_ifu_ifc_ctrl.scala 63:20]
-  wire  _T_2 = ~io_exu_flush_final; // @[el2_ifu_ifc_ctrl.scala 65:26]
-  wire  _T_3 = ~io_ifc_fetch_req_f; // @[el2_ifu_ifc_ctrl.scala 65:49]
-  wire  _T_4 = ~io_ic_hit_f; // @[el2_ifu_ifc_ctrl.scala 65:71]
-  wire  _T_5 = _T_3 | _T_4; // @[el2_ifu_ifc_ctrl.scala 65:69]
-  wire  sel_last_addr_bf = _T_2 & _T_5; // @[el2_ifu_ifc_ctrl.scala 65:46]
-  wire  _T_7 = _T_2 & io_ifc_fetch_req_f; // @[el2_ifu_ifc_ctrl.scala 66:46]
-  wire  _T_8 = _T_7 & io_ifu_bp_hit_taken_f; // @[el2_ifu_ifc_ctrl.scala 66:67]
-  wire  sel_btb_addr_bf = _T_8 & io_ic_hit_f; // @[el2_ifu_ifc_ctrl.scala 66:92]
-  wire  _T_11 = ~io_ifu_bp_hit_taken_f; // @[el2_ifu_ifc_ctrl.scala 67:69]
-  wire  _T_12 = _T_7 & _T_11; // @[el2_ifu_ifc_ctrl.scala 67:67]
-  wire  sel_next_addr_bf = _T_12 & io_ic_hit_f; // @[el2_ifu_ifc_ctrl.scala 67:92]
+  reg  dma_iccm_stall_any_f; // @[el2_ifu_ifc_ctrl.scala 62:58]
+  wire  dma_stall = io_ic_dma_active | dma_iccm_stall_any_f; // @[el2_ifu_ifc_ctrl.scala 61:36]
+  reg  miss_a; // @[el2_ifu_ifc_ctrl.scala 64:44]
+  wire  _T_2 = ~io_exu_flush_final; // @[el2_ifu_ifc_ctrl.scala 66:26]
+  wire  _T_3 = ~io_ifc_fetch_req_f; // @[el2_ifu_ifc_ctrl.scala 66:49]
+  wire  _T_4 = ~io_ic_hit_f; // @[el2_ifu_ifc_ctrl.scala 66:71]
+  wire  _T_5 = _T_3 | _T_4; // @[el2_ifu_ifc_ctrl.scala 66:69]
+  wire  sel_last_addr_bf = _T_2 & _T_5; // @[el2_ifu_ifc_ctrl.scala 66:46]
+  wire  _T_7 = _T_2 & io_ifc_fetch_req_f; // @[el2_ifu_ifc_ctrl.scala 67:46]
+  wire  _T_8 = _T_7 & io_ifu_bp_hit_taken_f; // @[el2_ifu_ifc_ctrl.scala 67:67]
+  wire  sel_btb_addr_bf = _T_8 & io_ic_hit_f; // @[el2_ifu_ifc_ctrl.scala 67:92]
+  wire  _T_11 = ~io_ifu_bp_hit_taken_f; // @[el2_ifu_ifc_ctrl.scala 68:69]
+  wire  _T_12 = _T_7 & _T_11; // @[el2_ifu_ifc_ctrl.scala 68:67]
+  wire  sel_next_addr_bf = _T_12 & io_ic_hit_f; // @[el2_ifu_ifc_ctrl.scala 68:92]
  wire [30:0] _T_17 = io_exu_flush_final ? io_exu_flush_path_final : 31'h0; // @[Mux.scala 27:72]
  wire [30:0] _T_18 = sel_last_addr_bf ? io_ifc_fetch_addr_f : 31'h0; // @[Mux.scala 27:72]
  wire [30:0] _T_19 = sel_btb_addr_bf ? io_ifu_bp_btb_target_f : 31'h0; // @[Mux.scala 27:72]
-  wire [29:0] _T_29 = io_ifc_fetch_addr_f[30:1] + 30'h1; // @[el2_ifu_ifc_ctrl.scala 79:51]
+  wire [29:0] _T_29 = io_ifc_fetch_addr_f[30:1] + 30'h1; // @[el2_ifu_ifc_ctrl.scala 80:51]
  wire [30:0] _T_30 = {_T_29,1'h0}; // @[Cat.scala 29:58]
-  wire [31:0] fetch_addr_next = {{1'd0}, _T_30}; // @[el2_ifu_ifc_ctrl.scala 79:19]
+  wire [31:0] fetch_addr_next = {{1'd0}, _T_30}; // @[el2_ifu_ifc_ctrl.scala 80:19]
  wire [31:0] _T_20 = sel_next_addr_bf ? fetch_addr_next : 32'h0; // @[Mux.scala 27:72]
  wire [30:0] _T_21 = _T_17 | _T_18; // @[Mux.scala 27:72]
  wire [30:0] _T_22 = _T_21 | _T_19; // @[Mux.scala 27:72]
  wire [31:0] _GEN_1 = {{1'd0}, _T_22}; // @[Mux.scala 27:72]
  wire [31:0] _T_23 = _GEN_1 | _T_20; // @[Mux.scala 27:72]
-  reg [1:0] state; // @[el2_ifu_ifc_ctrl.scala 102:19]
-  wire  idle = state == 2'h0; // @[el2_ifu_ifc_ctrl.scala 121:17]
-  wire  _T_32 = io_ifu_fb_consume2 | io_ifu_fb_consume1; // @[el2_ifu_ifc_ctrl.scala 84:91]
-  wire  _T_33 = ~_T_32; // @[el2_ifu_ifc_ctrl.scala 84:70]
+  reg [1:0] state; // @[el2_ifu_ifc_ctrl.scala 103:19]
+  wire  idle = state == 2'h0; // @[el2_ifu_ifc_ctrl.scala 122:17]
+  wire  _T_32 = io_ifu_fb_consume2 | io_ifu_fb_consume1; // @[el2_ifu_ifc_ctrl.scala 85:91]
+  wire  _T_33 = ~_T_32; // @[el2_ifu_ifc_ctrl.scala 85:70]
  wire [3:0] _T_118 = io_exu_flush_final ? 4'h1 : 4'h0; // @[Mux.scala 27:72]
-  wire  _T_78 = ~io_ifu_fb_consume2; // @[el2_ifu_ifc_ctrl.scala 106:38]
-  wire  _T_79 = io_ifu_fb_consume1 & _T_78; // @[el2_ifu_ifc_ctrl.scala 106:36]
-  wire  _T_45 = io_ifc_fetch_req_f & _T_4; // @[el2_ifu_ifc_ctrl.scala 89:32]
-  wire  miss_f = _T_45 & _T_2; // @[el2_ifu_ifc_ctrl.scala 89:47]
-  wire  _T_81 = _T_3 | miss_f; // @[el2_ifu_ifc_ctrl.scala 106:81]
-  wire  _T_82 = _T_79 & _T_81; // @[el2_ifu_ifc_ctrl.scala 106:58]
-  wire  _T_83 = io_ifu_fb_consume2 & io_ifc_fetch_req_f; // @[el2_ifu_ifc_ctrl.scala 107:25]
-  wire  fb_right = _T_82 | _T_83; // @[el2_ifu_ifc_ctrl.scala 106:92]
-  wire  _T_95 = _T_2 & fb_right; // @[el2_ifu_ifc_ctrl.scala 113:16]
-  reg [3:0] fb_write_f; // @[el2_ifu_ifc_ctrl.scala 126:24]
+  wire  _T_78 = ~io_ifu_fb_consume2; // @[el2_ifu_ifc_ctrl.scala 107:38]
+  wire  _T_79 = io_ifu_fb_consume1 & _T_78; // @[el2_ifu_ifc_ctrl.scala 107:36]
+  wire  _T_45 = io_ifc_fetch_req_f & _T_4; // @[el2_ifu_ifc_ctrl.scala 90:32]
+  wire  miss_f = _T_45 & _T_2; // @[el2_ifu_ifc_ctrl.scala 90:47]
+  wire  _T_81 = _T_3 | miss_f; // @[el2_ifu_ifc_ctrl.scala 107:81]
+  wire  _T_82 = _T_79 & _T_81; // @[el2_ifu_ifc_ctrl.scala 107:58]
+  wire  _T_83 = io_ifu_fb_consume2 & io_ifc_fetch_req_f; // @[el2_ifu_ifc_ctrl.scala 108:25]
+  wire  fb_right = _T_82 | _T_83; // @[el2_ifu_ifc_ctrl.scala 107:92]
+  wire  _T_95 = _T_2 & fb_right; // @[el2_ifu_ifc_ctrl.scala 114:16]
+  reg [3:0] fb_write_f; // @[el2_ifu_ifc_ctrl.scala 127:24]
  wire [3:0] _T_98 = {1'h0,fb_write_f[3:1]}; // @[Cat.scala 29:58]
  wire [3:0] _T_119 = _T_95 ? _T_98 : 4'h0; // @[Mux.scala 27:72]
  wire [3:0] _T_123 = _T_118 | _T_119; // @[Mux.scala 27:72]
-  wire  fb_right2 = io_ifu_fb_consume2 & _T_81; // @[el2_ifu_ifc_ctrl.scala 109:36]
-  wire  _T_100 = _T_2 & fb_right2; // @[el2_ifu_ifc_ctrl.scala 114:16]
+  wire  fb_right2 = io_ifu_fb_consume2 & _T_81; // @[el2_ifu_ifc_ctrl.scala 110:36]
+  wire  _T_100 = _T_2 & fb_right2; // @[el2_ifu_ifc_ctrl.scala 115:16]
  wire [3:0] _T_103 = {2'h0,fb_write_f[3:2]}; // @[Cat.scala 29:58]
  wire [3:0] _T_120 = _T_100 ? _T_103 : 4'h0; // @[Mux.scala 27:72]
  wire [3:0] _T_124 = _T_123 | _T_120; // @[Mux.scala 27:72]
-  wire  _T_88 = io_ifu_fb_consume1 | io_ifu_fb_consume2; // @[el2_ifu_ifc_ctrl.scala 110:56]
-  wire  _T_89 = ~_T_88; // @[el2_ifu_ifc_ctrl.scala 110:35]
-  wire  _T_90 = io_ifc_fetch_req_f & _T_89; // @[el2_ifu_ifc_ctrl.scala 110:33]
-  wire  _T_91 = ~miss_f; // @[el2_ifu_ifc_ctrl.scala 110:80]
-  wire  fb_left = _T_90 & _T_91; // @[el2_ifu_ifc_ctrl.scala 110:78]
-  wire  _T_105 = _T_2 & fb_left; // @[el2_ifu_ifc_ctrl.scala 115:16]
+  wire  _T_88 = io_ifu_fb_consume1 | io_ifu_fb_consume2; // @[el2_ifu_ifc_ctrl.scala 111:56]
+  wire  _T_89 = ~_T_88; // @[el2_ifu_ifc_ctrl.scala 111:35]
+  wire  _T_90 = io_ifc_fetch_req_f & _T_89; // @[el2_ifu_ifc_ctrl.scala 111:33]
+  wire  _T_91 = ~miss_f; // @[el2_ifu_ifc_ctrl.scala 111:80]
+  wire  fb_left = _T_90 & _T_91; // @[el2_ifu_ifc_ctrl.scala 111:78]
+  wire  _T_105 = _T_2 & fb_left; // @[el2_ifu_ifc_ctrl.scala 116:16]
  wire [3:0] _T_108 = {fb_write_f[2:0],1'h0}; // @[Cat.scala 29:58]
  wire [3:0] _T_121 = _T_105 ? _T_108 : 4'h0; // @[Mux.scala 27:72]
  wire [3:0] _T_125 = _T_124 | _T_121; // @[Mux.scala 27:72]
-  wire  _T_110 = ~fb_right; // @[el2_ifu_ifc_ctrl.scala 116:18]
-  wire  _T_111 = _T_2 & _T_110; // @[el2_ifu_ifc_ctrl.scala 116:16]
-  wire  _T_112 = ~fb_right2; // @[el2_ifu_ifc_ctrl.scala 116:30]
-  wire  _T_113 = _T_111 & _T_112; // @[el2_ifu_ifc_ctrl.scala 116:28]
-  wire  _T_114 = ~fb_left; // @[el2_ifu_ifc_ctrl.scala 116:43]
-  wire  _T_115 = _T_113 & _T_114; // @[el2_ifu_ifc_ctrl.scala 116:41]
+  wire  _T_110 = ~fb_right; // @[el2_ifu_ifc_ctrl.scala 117:18]
+  wire  _T_111 = _T_2 & _T_110; // @[el2_ifu_ifc_ctrl.scala 117:16]
+  wire  _T_112 = ~fb_right2; // @[el2_ifu_ifc_ctrl.scala 117:30]
+  wire  _T_113 = _T_111 & _T_112; // @[el2_ifu_ifc_ctrl.scala 117:28]
+  wire  _T_114 = ~fb_left; // @[el2_ifu_ifc_ctrl.scala 117:43]
+  wire  _T_115 = _T_113 & _T_114; // @[el2_ifu_ifc_ctrl.scala 117:41]
  wire [3:0] _T_122 = _T_115 ? fb_write_f : 4'h0; // @[Mux.scala 27:72]
  wire [3:0] fb_write_ns = _T_125 | _T_122; // @[Mux.scala 27:72]
-  wire  fb_full_f_ns = fb_write_ns[3]; // @[el2_ifu_ifc_ctrl.scala 124:30]
-  wire  _T_34 = fb_full_f_ns & _T_33; // @[el2_ifu_ifc_ctrl.scala 84:68]
-  wire  _T_35 = ~_T_34; // @[el2_ifu_ifc_ctrl.scala 84:53]
-  wire  _T_36 = io_ifc_fetch_req_bf_raw & _T_35; // @[el2_ifu_ifc_ctrl.scala 84:51]
-  wire  _T_37 = ~dma_stall; // @[el2_ifu_ifc_ctrl.scala 85:5]
-  wire  _T_38 = _T_36 & _T_37; // @[el2_ifu_ifc_ctrl.scala 84:114]
-  wire  _T_39 = ~io_ic_write_stall; // @[el2_ifu_ifc_ctrl.scala 85:18]
-  wire  _T_40 = _T_38 & _T_39; // @[el2_ifu_ifc_ctrl.scala 85:16]
-  wire  _T_41 = ~io_dec_tlu_flush_noredir_wb; // @[el2_ifu_ifc_ctrl.scala 85:39]
-  wire  fetch_bf_en = io_exu_flush_final | io_ifc_fetch_req_f; // @[el2_ifu_ifc_ctrl.scala 87:37]
-  wire  _T_48 = io_ifu_ic_mb_empty | io_exu_flush_final; // @[el2_ifu_ifc_ctrl.scala 91:39]
-  wire  _T_50 = _T_48 & _T_37; // @[el2_ifu_ifc_ctrl.scala 91:61]
-  wire  _T_52 = _T_50 & _T_91; // @[el2_ifu_ifc_ctrl.scala 91:74]
-  wire  _T_53 = ~miss_a; // @[el2_ifu_ifc_ctrl.scala 91:86]
-  wire  mb_empty_mod = _T_52 & _T_53; // @[el2_ifu_ifc_ctrl.scala 91:84]
-  wire  goto_idle = io_exu_flush_final & io_dec_tlu_flush_noredir_wb; // @[el2_ifu_ifc_ctrl.scala 93:35]
-  wire  _T_57 = io_exu_flush_final & _T_41; // @[el2_ifu_ifc_ctrl.scala 95:36]
-  wire  leave_idle = _T_57 & idle; // @[el2_ifu_ifc_ctrl.scala 95:67]
-  wire  _T_60 = ~state[1]; // @[el2_ifu_ifc_ctrl.scala 97:23]
-  wire  _T_62 = _T_60 & state[0]; // @[el2_ifu_ifc_ctrl.scala 97:33]
-  wire  _T_63 = _T_62 & miss_f; // @[el2_ifu_ifc_ctrl.scala 97:44]
-  wire  _T_64 = ~goto_idle; // @[el2_ifu_ifc_ctrl.scala 97:55]
-  wire  _T_65 = _T_63 & _T_64; // @[el2_ifu_ifc_ctrl.scala 97:53]
-  wire  _T_67 = ~mb_empty_mod; // @[el2_ifu_ifc_ctrl.scala 98:17]
-  wire  _T_68 = state[1] & _T_67; // @[el2_ifu_ifc_ctrl.scala 98:15]
-  wire  _T_70 = _T_68 & _T_64; // @[el2_ifu_ifc_ctrl.scala 98:31]
-  wire  next_state_1 = _T_65 | _T_70; // @[el2_ifu_ifc_ctrl.scala 97:67]
-  wire  _T_72 = _T_64 & leave_idle; // @[el2_ifu_ifc_ctrl.scala 100:34]
-  wire  _T_75 = state[0] & _T_64; // @[el2_ifu_ifc_ctrl.scala 100:60]
-  wire  next_state_0 = _T_72 | _T_75; // @[el2_ifu_ifc_ctrl.scala 100:48]
-  wire  wfm = state == 2'h3; // @[el2_ifu_ifc_ctrl.scala 122:16]
-  reg  fb_full_f; // @[el2_ifu_ifc_ctrl.scala 125:26]
-  wire  _T_135 = _T_32 | io_exu_flush_final; // @[el2_ifu_ifc_ctrl.scala 129:61]
-  wire  _T_136 = ~_T_135; // @[el2_ifu_ifc_ctrl.scala 129:19]
-  wire  _T_137 = fb_full_f & _T_136; // @[el2_ifu_ifc_ctrl.scala 129:17]
-  wire  _T_138 = _T_137 | dma_stall; // @[el2_ifu_ifc_ctrl.scala 129:84]
-  wire  _T_139 = io_ifc_fetch_req_bf_raw & _T_138; // @[el2_ifu_ifc_ctrl.scala 128:60]
+  wire  fb_full_f_ns = fb_write_ns[3]; // @[el2_ifu_ifc_ctrl.scala 125:30]
+  wire  _T_34 = fb_full_f_ns & _T_33; // @[el2_ifu_ifc_ctrl.scala 85:68]
+  wire  _T_35 = ~_T_34; // @[el2_ifu_ifc_ctrl.scala 85:53]
+  wire  _T_36 = io_ifc_fetch_req_bf_raw & _T_35; // @[el2_ifu_ifc_ctrl.scala 85:51]
+  wire  _T_37 = ~dma_stall; // @[el2_ifu_ifc_ctrl.scala 86:5]
+  wire  _T_38 = _T_36 & _T_37; // @[el2_ifu_ifc_ctrl.scala 85:114]
+  wire  _T_39 = ~io_ic_write_stall; // @[el2_ifu_ifc_ctrl.scala 86:18]
+  wire  _T_40 = _T_38 & _T_39; // @[el2_ifu_ifc_ctrl.scala 86:16]
+  wire  _T_41 = ~io_dec_tlu_flush_noredir_wb; // @[el2_ifu_ifc_ctrl.scala 86:39]
+  wire  fetch_bf_en = io_exu_flush_final | io_ifc_fetch_req_f; // @[el2_ifu_ifc_ctrl.scala 88:37]
+  wire  _T_48 = io_ifu_ic_mb_empty | io_exu_flush_final; // @[el2_ifu_ifc_ctrl.scala 92:39]
+  wire  _T_50 = _T_48 & _T_37; // @[el2_ifu_ifc_ctrl.scala 92:61]
+  wire  _T_52 = _T_50 & _T_91; // @[el2_ifu_ifc_ctrl.scala 92:74]
+  wire  _T_53 = ~miss_a; // @[el2_ifu_ifc_ctrl.scala 92:86]
+  wire  mb_empty_mod = _T_52 & _T_53; // @[el2_ifu_ifc_ctrl.scala 92:84]
+  wire  goto_idle = io_exu_flush_final & io_dec_tlu_flush_noredir_wb; // @[el2_ifu_ifc_ctrl.scala 94:35]
+  wire  _T_57 = io_exu_flush_final & _T_41; // @[el2_ifu_ifc_ctrl.scala 96:36]
+  wire  leave_idle = _T_57 & idle; // @[el2_ifu_ifc_ctrl.scala 96:67]
+  wire  _T_60 = ~state[1]; // @[el2_ifu_ifc_ctrl.scala 98:23]
+  wire  _T_62 = _T_60 & state[0]; // @[el2_ifu_ifc_ctrl.scala 98:33]
+  wire  _T_63 = _T_62 & miss_f; // @[el2_ifu_ifc_ctrl.scala 98:44]
+  wire  _T_64 = ~goto_idle; // @[el2_ifu_ifc_ctrl.scala 98:55]
+  wire  _T_65 = _T_63 & _T_64; // @[el2_ifu_ifc_ctrl.scala 98:53]
+  wire  _T_67 = ~mb_empty_mod; // @[el2_ifu_ifc_ctrl.scala 99:17]
+  wire  _T_68 = state[1] & _T_67; // @[el2_ifu_ifc_ctrl.scala 99:15]
+  wire  _T_70 = _T_68 & _T_64; // @[el2_ifu_ifc_ctrl.scala 99:31]
+  wire  next_state_1 = _T_65 | _T_70; // @[el2_ifu_ifc_ctrl.scala 98:67]
+  wire  _T_72 = _T_64 & leave_idle; // @[el2_ifu_ifc_ctrl.scala 101:34]
+  wire  _T_75 = state[0] & _T_64; // @[el2_ifu_ifc_ctrl.scala 101:60]
+  wire  next_state_0 = _T_72 | _T_75; // @[el2_ifu_ifc_ctrl.scala 101:48]
+  wire  wfm = state == 2'h3; // @[el2_ifu_ifc_ctrl.scala 123:16]
+  reg  fb_full_f; // @[el2_ifu_ifc_ctrl.scala 126:26]
+  wire  _T_135 = _T_32 | io_exu_flush_final; // @[el2_ifu_ifc_ctrl.scala 130:61]
+  wire  _T_136 = ~_T_135; // @[el2_ifu_ifc_ctrl.scala 130:19]
+  wire  _T_137 = fb_full_f & _T_136; // @[el2_ifu_ifc_ctrl.scala 130:17]
+  wire  _T_138 = _T_137 | dma_stall; // @[el2_ifu_ifc_ctrl.scala 130:84]
+  wire  _T_139 = io_ifc_fetch_req_bf_raw & _T_138; // @[el2_ifu_ifc_ctrl.scala 129:60]
  wire [31:0] _T_141 = {io_ifc_fetch_addr_bf,1'h0}; // @[Cat.scala 29:58]
  wire  iccm_acc_in_region_bf = _T_141[31:28] == 4'he; // @[el2_lib.scala 211:47]
  wire  iccm_acc_in_range_bf = _T_141[31:16] == 16'hee00; // @[el2_lib.scala 214:29]
-  wire  _T_144 = ~io_ifc_iccm_access_bf; // @[el2_ifu_ifc_ctrl.scala 135:30]
-  wire  _T_147 = fb_full_f & _T_33; // @[el2_ifu_ifc_ctrl.scala 136:16]
-  wire  _T_148 = _T_144 | _T_147; // @[el2_ifu_ifc_ctrl.scala 135:53]
-  wire  _T_149 = ~io_ifc_fetch_req_bf; // @[el2_ifu_ifc_ctrl.scala 137:13]
-  wire  _T_150 = wfm & _T_149; // @[el2_ifu_ifc_ctrl.scala 137:11]
-  wire  _T_151 = _T_148 | _T_150; // @[el2_ifu_ifc_ctrl.scala 136:62]
-  wire  _T_152 = _T_151 | idle; // @[el2_ifu_ifc_ctrl.scala 137:35]
-  wire  _T_154 = _T_152 & _T_2; // @[el2_ifu_ifc_ctrl.scala 137:44]
-  wire  _T_156 = ~iccm_acc_in_range_bf; // @[el2_ifu_ifc_ctrl.scala 139:33]
+  wire  _T_144 = ~io_ifc_iccm_access_bf; // @[el2_ifu_ifc_ctrl.scala 136:30]
+  wire  _T_147 = fb_full_f & _T_33; // @[el2_ifu_ifc_ctrl.scala 137:16]
+  wire  _T_148 = _T_144 | _T_147; // @[el2_ifu_ifc_ctrl.scala 136:53]
+  wire  _T_149 = ~io_ifc_fetch_req_bf; // @[el2_ifu_ifc_ctrl.scala 138:13]
+  wire  _T_150 = wfm & _T_149; // @[el2_ifu_ifc_ctrl.scala 138:11]
+  wire  _T_151 = _T_148 | _T_150; // @[el2_ifu_ifc_ctrl.scala 137:62]
+  wire  _T_152 = _T_151 | idle; // @[el2_ifu_ifc_ctrl.scala 138:35]
+  wire  _T_154 = _T_152 & _T_2; // @[el2_ifu_ifc_ctrl.scala 138:44]
+  wire  _T_156 = ~iccm_acc_in_range_bf; // @[el2_ifu_ifc_ctrl.scala 140:33]
  wire [4:0] _T_159 = {io_ifc_fetch_addr_bf[30:27],1'h0}; // @[Cat.scala 29:58]
-  wire [31:0] _T_160 = io_dec_tlu_mrac_ff >> _T_159; // @[el2_ifu_ifc_ctrl.scala 140:53]
-  reg  _T_163; // @[el2_ifu_ifc_ctrl.scala 142:32]
+  wire [31:0] _T_160 = io_dec_tlu_mrac_ff >> _T_159; // @[el2_ifu_ifc_ctrl.scala 141:53]
+  reg  _T_163; // @[el2_ifu_ifc_ctrl.scala 143:32]
  reg [30:0] _T_165; // @[Reg.scala 27:20]
-  assign io_ifc_fetch_addr_f = _T_165; // @[el2_ifu_ifc_ctrl.scala 144:23]
-  assign io_ifc_fetch_addr_bf = _T_23[30:0]; // @[el2_ifu_ifc_ctrl.scala 70:24]
-  assign io_ifc_fetch_req_f = _T_163; // @[el2_ifu_ifc_ctrl.scala 142:22]
-  assign io_ifu_pmu_fetch_stall = wfm | _T_139; // @[el2_ifu_ifc_ctrl.scala 128:26]
-  assign io_ifc_fetch_uncacheable_bf = ~_T_160[0]; // @[el2_ifu_ifc_ctrl.scala 140:31]
-  assign io_ifc_fetch_req_bf = _T_40 & _T_41; // @[el2_ifu_ifc_ctrl.scala 84:23]
-  assign io_ifc_fetch_req_bf_raw = ~idle; // @[el2_ifu_ifc_ctrl.scala 82:27]
-  assign io_ifc_iccm_access_bf = _T_141[31:16] == 16'hee00; // @[el2_ifu_ifc_ctrl.scala 134:25]
-  assign io_ifc_region_acc_fault_bf = _T_156 & iccm_acc_in_region_bf; // @[el2_ifu_ifc_ctrl.scala 139:30]
-  assign io_ifc_dma_access_ok = _T_154 | dma_iccm_stall_any_f; // @[el2_ifu_ifc_ctrl.scala 135:24]
+  assign io_ifc_fetch_addr_f = _T_165; // @[el2_ifu_ifc_ctrl.scala 145:23]
+  assign io_ifc_fetch_addr_bf = _T_23[30:0]; // @[el2_ifu_ifc_ctrl.scala 71:24]
+  assign io_ifc_fetch_req_f = _T_163; // @[el2_ifu_ifc_ctrl.scala 143:22]
+  assign io_ifu_pmu_fetch_stall = wfm | _T_139; // @[el2_ifu_ifc_ctrl.scala 129:26]
+  assign io_ifc_fetch_uncacheable_bf = ~_T_160[0]; // @[el2_ifu_ifc_ctrl.scala 141:31]
+  assign io_ifc_fetch_req_bf = _T_40 & _T_41; // @[el2_ifu_ifc_ctrl.scala 85:23]
+  assign io_ifc_fetch_req_bf_raw = ~idle; // @[el2_ifu_ifc_ctrl.scala 83:27]
+  assign io_ifc_iccm_access_bf = _T_141[31:16] == 16'hee00; // @[el2_ifu_ifc_ctrl.scala 135:25]
+  assign io_ifc_region_acc_fault_bf = _T_156 & iccm_acc_in_region_bf; // @[el2_ifu_ifc_ctrl.scala 140:30]
+  assign io_ifc_dma_access_ok = _T_154 | dma_iccm_stall_any_f; // @[el2_ifu_ifc_ctrl.scala 136:24]
 `ifdef RANDOMIZE_GARBAGE_ASSIGN
 `define RANDOMIZE
 `endif
@ -241,14 +242,14 @@ end // initial
 `FIRRTL_AFTER_INITIAL
 `endif
 `endif // SYNTHESIS
-  always @(posedge clock or posedge reset) begin
+  always @(posedge io_free_clk or posedge reset) begin
    if (reset) begin
      dma_iccm_stall_any_f <= 1'h0;
    end else begin
      dma_iccm_stall_any_f <= io_dma_iccm_stall_any;
    end
  end
-  always @(posedge clock or posedge reset) begin
+  always @(posedge io_free_clk or posedge reset) begin
    if (reset) begin
      miss_a <= 1'h0;
    end else begin
--- a/src/main/scala/ifu/el2_ifu_ifc_ctrl.scala
+++ b/src/main/scala/ifu/el2_ifu_ifc_ctrl.scala
@ -5,6 +5,7 @@ import chisel3.util._

 class el2_ifu_ifc_ctrl extends Module with el2_lib with RequireAsyncReset {
 val io = IO(new Bundle{
+  val free_clk = Input(Clock())
  val active_clk = Input(Bool())
  val scan_mode = Input(Bool())
  val ic_hit_f = Input(Bool())
@ -58,9 +59,9 @@ val io = IO(new Bundle{
  val idle_E :: fetch_E :: stall_E :: wfm_E :: Nil = Enum(4)

  val dma_stall = io.ic_dma_active | dma_iccm_stall_any_f
-  dma_iccm_stall_any_f := RegNext(io.dma_iccm_stall_any, init=0.U)
+  dma_iccm_stall_any_f := withClock(io.free_clk) {RegNext(io.dma_iccm_stall_any, init=0.U)}

-  miss_a := RegNext(miss_f, init=0.U)
+  miss_a := withClock(io.free_clk) {RegNext(miss_f, init=0.U)}

  val sel_last_addr_bf = !io.exu_flush_final & (!io.ifc_fetch_req_f | !io.ic_hit_f)
  val sel_btb_addr_bf  = !io.exu_flush_final & io.ifc_fetch_req_f &  io.ifu_bp_hit_taken_f & io.ic_hit_f
--- a/target/scala-2.12/classes/ifu/el2_ifu_ifc_ctrl$$anon$1.class
+++ b/target/scala-2.12/classes/ifu/el2_ifu_ifc_ctrl$$anon$1.class
--- a/target/scala-2.12/classes/ifu/el2_ifu_ifc_ctrl.class
+++ b/target/scala-2.12/classes/ifu/el2_ifu_ifc_ctrl.class
--- a/target/scala-2.12/classes/ifu/ifu_ifc$.class
+++ b/target/scala-2.12/classes/ifu/ifu_ifc$.class
--- a/target/scala-2.12/classes/ifu/ifu_ifc$delayedInit$body.class
+++ b/target/scala-2.12/classes/ifu/ifu_ifc$delayedInit$body.class