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authorAndreas Hansson <andreas.hansson@arm.com>2015-07-03 10:14:48 -0400
committerAndreas Hansson <andreas.hansson@arm.com>2015-07-03 10:14:48 -0400
commit7e711c98f8fcd949b9430bbf243d60348d0ef28b (patch)
tree98c8f6bf612da9a4ab5f721a28366c0bf66a9df8
parent31f901b69dd2cdc6b6bafa11cfb0af477de57607 (diff)
downloadgem5-7e711c98f8fcd949b9430bbf243d60348d0ef28b.tar.xz
mem: Increase the default buffer sizes for the DDR4 controller
This patch increases the default read/write buffer sizes for the DDR4 controller config to values that are more suitable for the high bandwidth and high bank count.
-rw-r--r--src/mem/DRAMCtrl.py5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/mem/DRAMCtrl.py b/src/mem/DRAMCtrl.py
index ef187a31c..d02011526 100644
--- a/src/mem/DRAMCtrl.py
+++ b/src/mem/DRAMCtrl.py
@@ -522,6 +522,11 @@ class DDR4_2400_x64(DRAMCtrl):
# constraints incurred by the bank groups
banks_per_rank = 16
+ # override the default buffer sizes and go for something larger to
+ # accommodate the larger bank count
+ write_buffer_size = 128
+ read_buffer_size = 64
+
# 1200 MHz
tCK = '0.833ns'