From 1d2affc70752b14198f93f73aa9fd0b5ae4bacf6 Mon Sep 17 00:00:00 2001
From: Karlis Susters <ks980@cam.ac.uk>
Date: Wed, 1 Mar 2023 17:20:19 +0000
Subject: [PATCH] Set up config for L1I single window-2 prefetcher

---
 builds/Resources/Include_RISCY_Config.mk        | 6 +++---
 src_Core/RISCY_OOO/coherence/src/Prefetcher.bsv | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/builds/Resources/Include_RISCY_Config.mk b/builds/Resources/Include_RISCY_Config.mk
index 068ff52..c0be439 100644
--- a/builds/Resources/Include_RISCY_Config.mk
+++ b/builds/Resources/Include_RISCY_Config.mk
@@ -45,9 +45,9 @@ SIM_LLC_ARBITER_LAT ?=
 # default check cache deadlock and rename error
 CHECK_DEADLOCK ?= true
 RENAME_DEBUG ?= false
-INSTR_PREFETCHER_LOCATION ?= NONE
-INSTR_PREFETCHER_TYPE ?= NEXT_LINE_ON_MISS
-DATA_PREFETCHER_LOCATION ?= L1
+INSTR_PREFETCHER_LOCATION ?= L1
+INSTR_PREFETCHER_TYPE ?= SINGLE_WINDOW
+DATA_PREFETCHER_LOCATION ?= NONE
 DATA_PREFETCHER_TYPE ?= BLOCK
 
 # clk frequency depends on core size
diff --git a/src_Core/RISCY_OOO/coherence/src/Prefetcher.bsv b/src_Core/RISCY_OOO/coherence/src/Prefetcher.bsv
index eae2d9c..0adfd70 100644
--- a/src_Core/RISCY_OOO/coherence/src/Prefetcher.bsv
+++ b/src_Core/RISCY_OOO/coherence/src/Prefetcher.bsv
@@ -124,7 +124,7 @@ module mkSingleWindowPrefetcher(Prefetcher);
             $display("%t Prefetcher report HIT %h, moving window end to %h", $time, addr, Addr'{nextEnd, '0});
             rangeEnd <= nextEnd;
         end
-        else begin
+        else if (hitMiss == MISS) begin
             $display("%t Prefetcher report MISS %h", $time, addr);
             //Reset window
             nextToAsk <= getLineAddr(addr) + 1;