Hello
This is because the fetchBufferSize in O3CPU.py is set to 64 bytes and you are
trying to set the cache line size to 32 bytes.
In your local version of se.py, add the following code:
if (options.cacheline_size == 32):
DerivO3CPU.fetchBufferSize = 32
Best regards
J.Osmany
-----Original Message-----
From: yangyuqing--- via gem5-users [mailto:gem5-users@gem5.org]
Sent: 29 September 2021 12:29
To: gem5-users@gem5.org
Cc: yangyuq...@sjtu.edu.cn
Subject: [gem5-users] set cache line size under o3 cpu
When I simulate o3 cpu, I find that I can not set cache line size to 32B.
The command is ./build/RISCV/gem5.opt --outdir=output/riscv
configs/example/se.py \ --cpu-type=DerivO3CPU --num-cpus=2 --cpu-clock=1.5GHz
--caches --l2cache --l1d_size=16kB \ --l1i_size=16kB --l2_size=256kB
--l1d_assoc=4 --l1i_assoc=4 --l2_assoc=16 --cacheline_size=32 \
--mem-type=DDR4_2400_16x4 --mem-size=1GB \ -c
./tests/test-progs/hello/bin/riscv/linux/hello.
It causes errors like: build/RISCV/cpu/o3/fetch.cc:115: fatal: fetch buffer
size (64 bytes) is greater than the cache block size (32 bytes).
So how to change cache line size when using o3 cpu?
_______________________________________________
gem5-users mailing list -- gem5-users@gem5.org To unsubscribe send an email to
gem5-users-le...@gem5.org %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s
_______________________________________________
gem5-users mailing list -- gem5-users@gem5.org
To unsubscribe send an email to gem5-users-le...@gem5.org
%(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s
