From 6fc0094337bc0356c55232c3850fb5fd2dab1f0c Mon Sep 17 00:00:00 2001 From: Mrinmoy Ghosh Date: Tue, 25 Sep 2012 11:49:41 -0500 Subject: Cache: add a response latency to the caches In the current caches the hit latency is paid twice on a miss. This patch lets a configurable response latency be set of the cache for the backward path. --- configs/common/Caches.py | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) (limited to 'configs/common/Caches.py') diff --git a/configs/common/Caches.py b/configs/common/Caches.py index 0be8001d7..f16a83559 100644 --- a/configs/common/Caches.py +++ b/configs/common/Caches.py @@ -31,7 +31,8 @@ from m5.objects import * class L1Cache(BaseCache): assoc = 2 block_size = 64 - latency = '1ns' + hit_latency = '1ns' + response_latency = '1ns' mshrs = 10 tgts_per_mshr = 20 is_top_level = True @@ -39,14 +40,16 @@ class L1Cache(BaseCache): class L2Cache(BaseCache): assoc = 8 block_size = 64 - latency = '10ns' + hit_latency = '10ns' + response_latency = '10ns' mshrs = 20 tgts_per_mshr = 12 class PageTableWalkerCache(BaseCache): assoc = 2 block_size = 64 - latency = '1ns' + hit_latency = '1ns' + response_latency = '1ns' mshrs = 10 size = '1kB' tgts_per_mshr = 12 @@ -55,7 +58,8 @@ class PageTableWalkerCache(BaseCache): class IOCache(BaseCache): assoc = 8 block_size = 64 - latency = '10ns' + hit_latency = '10ns' + response_latency = '10ns' mshrs = 20 size = '1kB' tgts_per_mshr = 12 -- cgit v1.2.3