From: "Tony Luck" <tony.luck@intel.com>
To: "Arnd Bergmann" <arnd@arndb.de>
Cc: Andrew Morton <akpm@osdl.org>,
linux-mips@linux-mips.org,
David Mosberger-Tang <davidm@hpl.hp.com>,
linux-ia64@vger.kernel.org,
Martin Mares <mj@atrey.karlin.mff.cuni.cz>,
spyro@f2s.com, Joe Taylor <joe@tensilica.com>,
Andi Kleen <ak@suse.de>,
linuxppc-dev@ozlabs.org, Paul Mackerras <paulus@samba.org>,
benedict.gaster@superh.com, bjornw@axis.com,
Ingo Molnar <mingo@elte.hu>,
Nick Piggin <nickpiggin@yahoo.com.au>,
grundler@parisc-linux.org, rusty@rustcorp.com.au,
Steven Rostedt <rostedt@goodmis.org>,
starvik@axis.com, Linus Torvalds <torvalds@osdl.org>,
Thomas Gleixner <tglx@linutronix.de>,
rth@twiddle.net, Chris Zankel <chris@zankel.net>,
LKML <linux-kernel@vger.kernel.org>,
ralf@linux-mips.org, Marc Gauthier <marc@tensilica.com>,
lethal@linux-sh.org, schwidefsky@de.ibm.com, linux390@de.ibm.com,
davem@davemloft.net, parisc-linux@parisc-linux.org
Subject: Re: [PATCH 00/05] robust per_cpu allocation for modules
Date: Sun, 16 Apr 2006 11:03:03 -0700 [thread overview]
Message-ID: <12c511ca0604161103l3013f5f1t99c93ee38f102e95@mail.gmail.com> (raw)
In-Reply-To: <200604161734.20256.arnd@arndb.de>
On 4/16/06, Arnd Bergmann <arnd@arndb.de> wrote:
> #define PER_CPU_BASE 0xe000000000000000UL /* arch dependant */
On ia64 the percpu area is at 0xffffffffffff0000 so that it can be
addressed without tying up another register (all percpu addresses
are small negative offsets from "r0"). When David Mosberger
chose this address he said that gcc 4 would actually make
ue of this, but I haven't checked the generated code to see
whether it really is doing so.
-Tony
next prev parent reply other threads:[~2006-04-16 18:03 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-04-14 21:18 [PATCH 00/05] robust per_cpu allocation for modules Steven Rostedt
2006-04-14 22:06 ` Andrew Morton
2006-04-14 22:12 ` Steven Rostedt
2006-04-14 22:12 ` Chen, Kenneth W
2006-04-15 3:10 ` [PATCH 00/08] robust per_cpu allocation for modules - V2 Steven Rostedt
2006-04-15 5:32 ` [PATCH 00/05] robust per_cpu allocation for modules Nick Piggin
2006-04-15 20:17 ` Steven Rostedt
2006-04-16 2:47 ` Nick Piggin
2006-04-16 3:53 ` Steven Rostedt
2006-04-16 7:02 ` Paul Mackerras
2006-04-16 13:40 ` Steven Rostedt
2006-04-16 14:03 ` Sam Ravnborg
2006-04-16 15:34 ` Arnd Bergmann
2006-04-16 18:03 ` Tony Luck [this message]
2006-04-17 0:45 ` Steven Rostedt
2006-04-17 2:07 ` Arnd Bergmann
2006-04-17 2:17 ` Steven Rostedt
2006-04-17 20:06 ` Ravikiran G Thirumalai
2006-04-17 6:47 ` Rusty Russell
2006-04-17 11:33 ` Steven Rostedt
2006-04-16 7:06 ` Nick Piggin
2006-04-16 16:06 ` Steven Rostedt
2006-04-17 17:10 ` Andi Kleen
2006-04-17 16:55 ` Christoph Lameter
2006-04-17 22:02 ` Ravikiran G Thirumalai
2006-04-17 23:44 ` Steven Rostedt
2006-04-17 23:48 ` Christoph Lameter
2006-04-18 1:51 ` Steven Rostedt
2006-04-18 6:42 ` Nick Piggin
2006-04-18 12:47 ` Steven Rostedt
2006-04-16 6:35 ` Paul Mackerras
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