From: Chris Metcalf <cmetcalf@tilera.com>
To: Arnd Bergmann <arnd@arndb.de>
Cc: Ulrich Drepper <drepper@gmail.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
linux-arch@vger.kernel.org, Chen Liqin <liqin.chen@sunplusct.com>
Subject: Re: [PATCH] arch/tile: new multi-core architecture for Linux
Date: Tue, 25 May 2010 11:13:03 -0400 [thread overview]
Message-ID: <4BFBE8FF.6080208@tilera.com> (raw)
In-Reply-To: <201005251703.11613.arnd@arndb.de>
On 5/25/2010 11:03 AM, Arnd Bergmann wrote:
> I would keep allocating from the bottom. For now, maybe we should just
> reserve 16 arch specific syscall numbers starting at 244, and add
>
> #define __NR_tile_cmpxchg_baddr (__NR_arch_specific_syscall + 0)
> #define __NR_tile_raise_fpe (__NR_arch_specific_syscall + 1)
> #define __NR_tile_flush_cache (__NR_arch_specific_syscall + 2)
>
> to your own unistd.h.
>
OK.
> The idea was to only have them around as a transitional helper for
> new architectures while getting merged, but nothing should ever
> use these in production.
>
Perhaps the best strategy for Tile for now is to enable the transitional
helpers, and then when glibc no longer requires any of those syscalls,
we can remove them from the kernel. If this happens in the relatively
short term (e.g. before our 3.0 release later this year) all the better,
but for now we can separate this into a first change that preserves most
of the compatibility syscalls, and work towards remove them in a later
release.
--
Chris Metcalf, Tilera Corp.
http://www.tilera.com
next prev parent reply other threads:[~2010-05-25 15:13 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <201005200543.o4K5hFRF006079@farm-0002.internal.tilera.com>
[not found] ` <4BF757FF.6060100@tilera.com>
2010-05-23 22:08 ` [PATCH] arch/tile: new multi-core architecture for Linux Arnd Bergmann
2010-05-24 15:29 ` Chris Metcalf
2010-05-24 15:29 ` Chris Metcalf
2010-05-24 18:53 ` Arnd Bergmann
2010-05-24 21:29 ` Chris Metcalf
2010-05-24 21:29 ` Chris Metcalf
2010-05-25 13:54 ` Chris Metcalf
2010-05-25 13:54 ` Chris Metcalf
2010-05-25 15:03 ` Arnd Bergmann
2010-05-25 15:13 ` Chris Metcalf [this message]
2010-05-25 15:30 ` Arnd Bergmann
2010-05-26 2:44 ` liqin.chen
2010-05-26 13:45 ` Chris Metcalf
[not found] ` <4BFBE005.2070500@tilera.com>
[not found] ` <201005251721.23782.arnd@arndb.de>
2010-05-26 23:05 ` Chris Metcalf
2010-05-26 5:02 ` Paul Mundt
2010-05-25 21:45 ` Arnd Bergmann
2010-05-27 0:58 ` Chris Metcalf
2010-05-27 8:41 ` Arnd Bergmann
2010-05-27 13:30 ` Chris Metcalf
2010-05-27 13:41 ` Geert Uytterhoeven
2010-05-27 13:48 ` Paul Mundt
2010-05-27 14:11 ` Arnd Bergmann
2010-05-27 14:35 ` Chris Metcalf
2010-05-27 15:02 ` Arnd Bergmann
2010-05-27 15:04 ` Chris Metcalf
2010-05-27 15:20 ` Arnd Bergmann
2010-05-27 14:52 ` Marc Gauthier
2010-05-27 14:52 ` Marc Gauthier
2010-05-28 17:58 ` Chris Metcalf
2010-05-27 15:03 ` Chris Metcalf
2010-05-27 20:34 ` Jamie Lokier
2010-05-27 20:53 ` Arnd Bergmann
2010-05-28 16:45 ` Chris Metcalf
2010-05-28 17:16 ` Arnd Bergmann
2010-05-28 17:28 ` Chris Metcalf
2010-05-24 20:22 ` Sam Ravnborg
2010-05-24 21:30 ` Chris Metcalf
2010-05-25 5:02 ` Sam Ravnborg
2010-05-25 5:02 ` Sam Ravnborg
2010-05-29 3:01 ` [PATCH 1/8] Fix up the "generic" unistd.h ABI to be more useful Chris Metcalf
2010-05-29 3:01 ` Chris Metcalf
2010-05-29 3:01 ` Chris Metcalf
2010-05-29 3:09 ` [PATCH 2/8] arch/tile: infrastructure and configuration-related files Chris Metcalf
2010-05-29 3:09 ` Chris Metcalf
2010-05-31 7:47 ` Paul Mundt
2010-06-03 17:54 ` Chris Metcalf
2010-05-29 3:09 ` Chris Metcalf
2010-05-29 3:10 ` [PATCH 3/8] arch/tile: header files for the Tile architecture Chris Metcalf
2010-05-31 2:58 ` FUJITA Tomonori
2010-06-03 21:32 ` [PATCH] arch/tile: respond to reviews of the second code submission Chris Metcalf
2010-06-04 0:50 ` Paul Mundt
2010-06-04 1:31 ` FUJITA Tomonori
2010-06-07 5:25 ` FUJITA Tomonori
2010-05-29 3:10 ` [PATCH 4/8] arch/tile: core kernel/ code Chris Metcalf
2010-05-31 2:58 ` FUJITA Tomonori
2010-05-29 3:11 ` [PATCH 5/8] arch/tile: the kernel/tile-desc_32.c file Chris Metcalf
2010-05-29 3:13 ` [PATCH 6/8] arch/tile: the mm/ directory Chris Metcalf
2010-05-29 3:16 ` [PATCH 7/8] arch/tile: lib/ directory Chris Metcalf
2010-05-29 3:16 ` Chris Metcalf
2010-05-29 3:17 ` [PATCH 8/8] arch/tile: hypervisor console driver Chris Metcalf
2010-05-29 3:17 ` Chris Metcalf
2010-05-29 3:20 ` [PATCH 0/8] revised patch for arch/tile/ support Chris Metcalf
2010-05-29 3:20 ` Chris Metcalf
2010-05-29 11:29 ` Arnd Bergmann
2010-06-03 20:40 ` Arnd Bergmann
2010-06-03 21:48 ` Chris Metcalf
2010-06-04 21:32 ` Chris Metcalf
2010-06-05 12:56 ` Stephen Rothwell
2010-06-05 13:30 ` Chris Metcalf
2010-06-05 14:10 ` Stephen Rothwell
2010-05-29 3:20 ` Chris Metcalf
[not found] ` <dVZMmBu$KHA.5388@exchange1.tad.internal.tilera.com>
2010-05-29 3:20 ` Chris Metcalf
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