From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Olof Johansson <olof@austin.ibm.com>
Cc: linas@austin.ibm.com, paulus@au1.ibm.com,
Paul Mackerras <paulus@samba.org>,
linuxppc64-dev <linuxppc64-dev@lists.linuxppc.org>,
Linux Kernel list <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] PPC64: lockfix for rtas error log
Date: Wed, 30 Jun 2004 14:02:17 -0500 [thread overview]
Message-ID: <1088622136.1921.51.camel@gaston> (raw)
In-Reply-To: <40E30E50.3040401@austin.ibm.com>
> Isn't the global buffer used since it's in BSS, and as such, in low
> memory, guaranteed to be below 4GB? RTAS has limitations that restricts
> any passed-in buffers to be addressable as 32-bit real mode pointers, right?
The global buffer is still used within the spinlocked region for RTAS itself,
the patch just uses a local buffer and copies into it from the global one
before releasing the lock.
Ben.
next prev parent reply other threads:[~2004-06-30 19:06 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-06-29 22:50 [PATCH] PPC64: lockfix for rtas error log linas
2004-06-30 1:17 ` David Gibson
2004-06-30 16:58 ` linas
2004-06-30 1:44 ` Benjamin Herrenschmidt
2004-06-30 17:36 ` linas
2004-06-30 18:47 ` Benjamin Herrenschmidt
2004-06-30 19:02 ` Olof Johansson
2004-06-30 19:02 ` Benjamin Herrenschmidt [this message]
2004-06-30 20:31 ` [PATCH] 2.6 PPC64: lockfix for rtas error log (third-times-a-charm?) linas
2004-06-30 11:27 ` [PATCH] PPC64: lockfix for rtas error log Paul Mackerras
2004-06-30 17:50 ` linas
2004-06-30 23:07 ` Paul Mackerras
2004-07-01 16:31 ` Jake Moilanen
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=1088622136.1921.51.camel@gaston \
--to=benh@kernel.crashing.org \
--cc=linas@austin.ibm.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linuxppc64-dev@lists.linuxppc.org \
--cc=olof@austin.ibm.com \
--cc=paulus@au1.ibm.com \
--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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox