From: Petr Vorel <pvorel@suse.cz>
To: Hui Min Mina Chou <minachou@andestech.com>
Cc: tim609@andestech.com, cynthia@andestech.com, az70021@gmail.com,
ltp@lists.linux.it
Subject: Re: [LTP] [PATCH] hugemmap15: Support RISC-V to do __cache_flush. (#79)
Date: Thu, 9 May 2024 10:06:49 +0200 [thread overview]
Message-ID: <20240509080649.GB234264@pevik> (raw)
In-Reply-To: <20240509052541.18707-1-minachou@andestech.com>
Hi Hui,
> AndesCore CPU test fails due to an illegal instruction at the first
> jumpfunc(), caused by executing incorrect instructions after
> self-modifying code.
> On RISC-V CPUs, a FENCE.i synchronizes instruction and data streams,
> ensuring that subsequent instruction fetch on a RISC-V hart will see
> any previous data stores already visible to the same RISC-V hart.
> Thus, cacheflush() in the test should also use __clear_cache for RISC-V.
> In SMP systems, it invokes the kernel syscall riscv_flush_icache to inform
> each hart to flush their local i-caches.
Reviewed-by: Petr Vorel <pvorel@suse.cz>
BTW what "#79" in the git message subject means?
Kind regards,
Petr
--
Mailing list info: https://lists.linux.it/listinfo/ltp
next prev parent reply other threads:[~2024-05-09 8:07 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-09 5:25 [LTP] [PATCH] hugemmap15: Support RISC-V to do __cache_flush. (#79) Hui Min Mina Chou via ltp
2024-05-09 8:06 ` Petr Vorel [this message]
2024-05-09 8:34 ` [LTP] [PATCH] hugemmap15: Support RISC-V to do __cache_flush Mina Chou via ltp
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20240509080649.GB234264@pevik \
--to=pvorel@suse.cz \
--cc=az70021@gmail.com \
--cc=cynthia@andestech.com \
--cc=ltp@lists.linux.it \
--cc=minachou@andestech.com \
--cc=tim609@andestech.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.