From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Olof Johansson <olof@lixom.net>
Cc: dwmw2@infradead.org, paulus@samba.org, linuxppc-dev@ozlabs.org
Subject: Re: [PATCH] [POWERPC] vdso: Fixes for cache line sizes
Date: Thu, 15 Nov 2007 07:28:22 +1100 [thread overview]
Message-ID: <1195072102.28865.41.camel@pasglop> (raw)
In-Reply-To: <20071114192405.GA1637@lixom.net>
On Wed, 2007-11-14 at 13:24 -0600, Olof Johansson wrote:
> [POWERPC] vdso: Fixes for cache line sizes
>
> Current VDSO implementation is hardcoded to 128 byte cachelines, which
> only works on IBM's 64-bit processors.
>
> Convert it to get the line sizes out of vdso_data instead, similar to
> how the ppc64 in-kernel cache flush does it.
Please call the fields "block size" not "line size". There are subtle
differences and per architecture, it should really be block size.
>
> Signed-off-by: Olof Johansson <olof@lixom.net>
>
> ---
> Paul, this is needed to make for example the IBM jvm run on pa6t. Please
> include as bugfix for 2.6.24.
Heh, they use the vdso for flushes ? I didn't know that !
Ben.
next prev parent reply other threads:[~2007-11-14 20:28 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-14 19:24 [PATCH] [POWERPC] vdso: Fixes for cache line sizes Olof Johansson
2007-11-14 20:28 ` Benjamin Herrenschmidt [this message]
2007-11-14 21:28 ` [PATCH v2] [POWERPC] vdso: Fixes for cache block sizes Olof Johansson
2007-11-19 4:07 ` Paul Mackerras
2007-11-19 4:25 ` Olof Johansson
2007-11-20 1:24 ` [PATCH v3] " Olof Johansson
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=1195072102.28865.41.camel@pasglop \
--to=benh@kernel.crashing.org \
--cc=dwmw2@infradead.org \
--cc=linuxppc-dev@ozlabs.org \
--cc=olof@lixom.net \
--cc=paulus@samba.org \
/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.