From: Arnd Bergmann <arnd@arndb•de>
To: linuxppc-dev@ozlabs•org
Cc: Olof Johansson <olof@lixom•net>,
torvalds@osdl•org, Paul Mackerras <paulus@samba•org>
Subject: Re: please pull powerpc.git 'merge' branch
Date: Sun, 30 Apr 2006 13:42:01 +0200 [thread overview]
Message-ID: <200604301342.02043.arnd@arndb.de> (raw)
In-Reply-To: <20060430042059.GO5518@pb15.lixom.net>
On Sunday 30 April 2006 06:20, Olof Johansson wrote:
> We already have SMT, ICACHE_SNOOP and ALTIVEC feature bits, so it probably
> makes sense to stay in the ARCH_2_05 direction. Unfortunately it might
> be tricky to rename the old defines now due to userland exposure.
>
> I guess Cell breaks all this logic though. Which PPC base version does
> it implement?
The Cell Broadband Engine Architecture in theory is 2.03 and also mandates
some of the extensions that are optional in there.
The relevant sections in the specs are:
| 4.1.1 Optional Features in PowerPC Architecture, Book I (Required for
| CBEA)
| The following facilities and instructions are considered optional in
| the PowerPC Architecture, but are required for the PPE by the CBEA
| user mode environment.
| • Floating reciprocal estimate single A-form (fres)
| • Floating reciprocal square-root estimate A-form (frsqte)
| • Vector/SIMD multimedia extension
| Note: The optional PowerPC floating-point instructions that are
| mandatory in the CBEA are needed for the application space targeted
| by the CBEA.
|
| 4.1.3 Optional Features in PowerPC Architecture, Book II (Required
| for CBEA)
| The following facilities and instructions are considered optional
| in the PowerPC Architecture, but are required in the CBEA.
| • Data cache block touch X-form (dcbt)
| This is an optional version of dcbt that permits a program to
| provide a hint that a sequence of data cache blocks is likely
| to be needed soon.
| Book II describes these facilities and instructions.
I believe the actual implementation is missing one of the mandatory
features of 2.03 that was not in 2.02 though.
Arnd <><
next prev parent reply other threads:[~2006-04-30 11:42 UTC|newest]
Thread overview: 148+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-04-29 6:15 please pull powerpc.git 'merge' branch Paul Mackerras
2006-04-29 15:19 ` Olof Johansson
2006-04-29 23:47 ` Paul Mackerras
2006-04-30 3:12 ` Segher Boessenkool
2006-04-30 4:20 ` Olof Johansson
2006-04-30 11:42 ` Arnd Bergmann [this message]
2006-04-30 11:57 ` Arnd Bergmann
2006-04-30 15:07 ` Olof Johansson
2006-04-30 13:04 ` Segher Boessenkool
2006-04-30 16:14 ` Arnd Bergmann
2006-04-30 15:03 ` Olof Johansson
2006-04-30 15:07 ` Olof Johansson
2006-04-30 3:50 ` Olof Johansson
2006-04-30 4:48 ` [PATCH] powerpc: rename PPC_FEATURE_POWER.* to PPC_FEATURE_ARCH.* Olof Johansson
2006-04-30 4:53 ` [PATCH] powerpc: Fix comment in ibm_architecture_vec Olof Johansson
-- strict thread matches above, loose matches on Subject: below --
2006-05-03 22:29 please pull powerpc.git 'merge' branch Paul Mackerras
2006-05-09 9:13 Paul Mackerras
2006-05-16 12:35 Paul Mackerras
2006-05-27 13:17 Paul Mackerras
2006-06-21 8:21 Paul Mackerras
2006-06-21 12:45 ` Kumar Gala
2006-06-21 13:04 ` Jon Loeliger
2006-06-21 13:08 ` Kumar Gala
2006-06-21 13:27 ` Jon Loeliger
2006-06-21 21:16 ` Paul Mackerras
2006-07-31 5:37 Paul Mackerras
2006-07-31 20:41 ` Linus Torvalds
2006-08-18 2:10 Please " Paul Mackerras
2006-08-18 14:15 ` Matt Porter
2006-08-18 16:20 ` Greg KH
2006-08-24 0:44 Paul Mackerras
[not found] ` <20060824010508.GA17848@suse.de>
2006-08-24 4:02 ` Paul Mackerras
2006-08-24 4:10 ` Greg KH
2006-08-24 13:22 ` Jon Loeliger
2006-08-24 13:33 ` Kumar Gala
2006-08-31 4:34 Paul Mackerras
2006-08-31 4:49 ` Linus Torvalds
2006-09-03 19:16 ` Linus Torvalds
2006-09-03 19:23 ` Sergei Shtylyov
2006-09-03 19:29 ` Linus Torvalds
2006-09-03 20:41 ` Segher Boessenkool
2006-09-03 21:15 ` Benjamin Herrenschmidt
2006-09-03 21:33 ` Linus Torvalds
2006-09-03 21:54 ` Benjamin Herrenschmidt
2006-09-13 12:47 Paul Mackerras
2006-09-14 19:14 ` Linus Torvalds
2006-09-14 22:55 ` Paul Mackerras
2006-09-14 23:36 ` Linus Torvalds
2006-09-15 19:59 ` Linus Torvalds
2006-10-07 12:33 Paul Mackerras
2006-10-10 5:31 Paul Mackerras
2006-10-17 4:02 Paul Mackerras
2006-10-25 6:26 Paul Mackerras
2006-10-25 14:09 ` Kumar Gala
2006-10-25 21:37 ` Paul Mackerras
2006-10-25 22:02 ` Kumar Gala
2006-10-25 14:22 ` Olof Johansson
2006-10-25 21:34 ` Paul Mackerras
2006-10-25 22:32 ` Olof Johansson
2006-11-01 7:30 Paul Mackerras
2006-11-11 11:32 Paul Mackerras
2006-11-16 2:19 Paul Mackerras
2006-11-22 2:35 Paul Mackerras
2006-11-22 2:47 ` Linus Torvalds
2006-11-22 21:40 ` Paul Mackerras
2006-11-22 21:53 ` Linus Torvalds
2006-12-20 10:23 Paul Mackerras
2006-12-20 10:52 ` Benjamin Herrenschmidt
2006-12-20 11:15 ` Arnd Bergmann
2006-12-20 11:18 ` Benjamin Herrenschmidt
2007-01-09 9:45 Paul Mackerras
2007-01-22 11:50 Paul Mackerras
2007-01-27 23:08 Paul Mackerras
2007-01-27 23:15 ` Paul Mackerras
2007-03-08 4:01 Please pull powerpc.git merge branch Paul Mackerras
2007-03-09 21:08 ` Paul Mackerras
2007-03-09 23:31 ` Arnd Bergmann
2007-03-13 0:47 Paul Mackerras
2007-03-22 4:31 Paul Mackerras
2007-03-28 23:51 Paul Mackerras
2007-04-11 22:29 Paul Mackerras
2007-06-15 5:00 Paul Mackerras
2007-06-19 5:39 Paul Mackerras
2007-06-20 12:46 Paul Mackerras
2007-06-26 10:08 Paul Mackerras
2007-07-02 4:25 Paul Mackerras
2007-07-02 6:04 ` Paul Mackerras
2007-07-05 1:45 Paul Mackerras
2007-07-11 4:46 Paul Mackerras
2007-07-22 12:56 Paul Mackerras
2007-07-26 12:10 Paul Mackerras
2007-08-03 10:32 Paul Mackerras
2007-08-06 5:57 ` Zhang Wei-r63237
2007-08-06 13:57 ` Kumar Gala
2007-08-07 1:06 ` Michael Ellerman
2007-08-07 2:57 ` Zang Roy-r61911
2007-08-07 3:18 ` Michael Ellerman
2007-08-07 3:31 ` Zhang Wei-r63237
2007-08-10 12:20 Paul Mackerras
2007-08-15 11:41 Paul Mackerras
2007-08-17 0:51 Paul Mackerras
2007-08-26 23:57 Paul Mackerras
2007-08-30 11:49 Paul Mackerras
2007-08-30 14:32 ` Kumar Gala
2007-09-10 19:13 Paul Mackerras
2007-09-19 12:38 Paul Mackerras
2007-09-25 11:40 Paul Mackerras
2007-09-25 12:43 ` Kumar Gala
2007-09-25 12:52 ` Paul Mackerras
2007-09-26 11:33 ` Paul Mackerras
2007-10-02 3:15 Paul Mackerras
2007-10-17 12:49 Paul Mackerras
2007-10-17 13:31 ` Josh Boyer
2007-10-23 4:21 Paul Mackerras
2007-11-08 9:54 Paul Mackerras
2007-11-13 11:11 Paul Mackerras
2007-11-20 8:38 Paul Mackerras
2007-11-26 22:09 Paul Mackerras
2007-12-02 23:12 Paul Mackerras
2007-12-03 0:25 ` Josh Boyer
2007-12-06 12:01 Paul Mackerras
2007-12-07 1:04 Paul Mackerras
2007-12-17 6:00 Paul Mackerras
2007-12-28 9:28 Paul Mackerras
2007-12-28 21:53 ` Geoff Levand
2007-12-31 1:40 ` Paul Mackerras
2007-12-31 16:12 ` Arnd Bergmann
2008-01-02 4:39 ` Jeremy Kerr
2008-01-02 5:21 Paul Mackerras
2008-01-12 0:09 Paul Mackerras
2008-01-15 10:19 Paul Mackerras
2008-02-14 22:00 Paul Mackerras
2008-02-15 22:43 ` Josh Boyer
2008-02-20 3:46 Paul Mackerras
2008-02-21 12:15 ` Paul Mackerras
2008-03-03 11:41 Paul Mackerras
2008-03-03 15:44 ` Grant Likely
2008-03-12 23:51 Paul Mackerras
2008-03-20 0:43 Paul Mackerras
2008-03-24 8:05 Paul Mackerras
2008-03-25 3:32 Paul Mackerras
2008-03-27 23:08 Paul Mackerras
2008-03-28 12:35 Paul Mackerras
2008-03-28 22:06 ` Bartlomiej Sieka
2008-04-01 23:12 ` Paul Mackerras
2008-04-02 4:27 ` Grant Likely
2008-04-02 14:32 ` Bartlomiej Sieka
2008-04-03 11:33 Paul Mackerras
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