From 337774e192cb9268244d05e828b395060ba1cefb Mon Sep 17 00:00:00 2001 From: Andreas Hansson Date: Fri, 6 Nov 2015 03:26:44 -0500 Subject: [PATCH] config: Update memtest to stress test clean writebacks This patch adds yet another twist to the memtest cache hierarchy, in that the writeback_clean option is toggled at every level to match the clusivity of the downstream cache. --- configs/example/memtest.py | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/configs/example/memtest.py b/configs/example/memtest.py index 354451a61..f8328c582 100644 --- a/configs/example/memtest.py +++ b/configs/example/memtest.py @@ -177,7 +177,8 @@ else: # Define a prototype L1 cache that we scale for all successive levels proto_l1 = Cache(size = '32kB', assoc = 4, hit_latency = 1, response_latency = 1, - tgts_per_mshr = 8, clusivity = 'mostly_incl') + tgts_per_mshr = 8, clusivity = 'mostly_incl', + writeback_clean = True) if options.blocking: proto_l1.mshrs = 1 @@ -201,6 +202,7 @@ for scale in cachespec[:-1]: # Swap the inclusivity/exclusivity at each level. L2 is mostly # exclusive with respect to L1, L3 mostly inclusive, L4 mostly # exclusive etc. + next.writeback_clean = not prev.writeback_clean if (prev.clusivity.value == 'mostly_incl'): next.clusivity = 'mostly_excl' else: