From: Mark Salter <msalter@redhat.com>
To: Arnd Bergmann <arnd@arndb.de>
Cc: Valdis.Kletnieks@vt.edu, linux-kernel@vger.kernel.org,
linux-arch@vger.kernel.org
Subject: Re: [PATCH v3 00/24] C6X: New architecture
Date: Thu, 29 Sep 2011 08:21:58 -0400 [thread overview]
Message-ID: <1317298919.2580.92.camel@deneb.redhat.com> (raw)
In-Reply-To: <201109291233.24623.arnd@arndb.de>
On Thu, 2011-09-29 at 12:33 +0200, Arnd Bergmann wrote:
> On Wednesday 28 September 2011, Valdis.Kletnieks@vt.edu wrote:
> > Show Details
> > On Tue, 27 Sep 2011 16:29:41 EDT, Mark Salter said:
> >
> > > This architecture supports members of the Texas Instruments family
> > > of C6x single and multicore DSPs. The multicore DSPs do not support
> > > cache coherancy, so are not suitable for SMP.
> >
> > Is there a usage model for the multicore? I know somebody had some patches for
> > "HPC dedicated compute cores" that would just basically run a userspace process
> > and that's it - would those be applicable here?
>
> No, that's a different thing. Even with dedicated compute cores, you need
> cache coherency.
One thing that we plan to push later is an XIP model where cores can
share a
single kernel text image but run with their own copies of data. So you
end up
with something like a loosely coupled multiprocessor system with some
hardware
support for multicore communication and peripheral sharing.
--Mark
next prev parent reply other threads:[~2011-09-29 12:22 UTC|newest]
Thread overview: 66+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-27 20:29 Mark Salter
2011-09-27 20:29 ` [PATCH v3 01/24] fix default __strnlen_user macro Mark Salter
2011-09-28 13:20 ` Arnd Bergmann
2011-09-27 20:29 ` [PATCH v3 02/24] fixed generic page.h for non-zero PAGE_OFFSET Mark Salter
2011-09-27 20:29 ` [PATCH v3 03/24] add ELF machine define for TI C6X DSPs Mark Salter
2011-09-27 20:29 ` [PATCH v3 04/24] add missing __iomem to generic iounmap declaration Mark Salter
2011-09-28 13:19 ` Arnd Bergmann
2011-09-27 20:29 ` [PATCH v3 05/24] C6X: build infrastructure Mark Salter
2011-09-28 13:23 ` Arnd Bergmann
2011-09-28 14:32 ` Mark Salter
2011-09-28 14:57 ` Arnd Bergmann
2011-09-27 20:29 ` [PATCH v3 06/24] C6X: early boot code Mark Salter
2011-09-28 13:26 ` Arnd Bergmann
2011-09-28 14:06 ` Mark Salter
2011-09-28 15:00 ` Arnd Bergmann
2011-09-27 20:29 ` [PATCH v3 07/24] C6X: devicetree support Mark Salter
2011-09-28 13:31 ` Arnd Bergmann
2011-09-28 14:44 ` Mark Salter
2011-09-28 14:57 ` Arnd Bergmann
2011-09-28 23:11 ` Grant Likely
2011-09-27 20:29 ` [PATCH v3 08/24] C6X: memory management and DMA support Mark Salter
2011-09-28 13:46 ` Arnd Bergmann
2011-09-27 20:29 ` [PATCH v3 09/24] C6X: process management Mark Salter
2011-09-28 13:47 ` Arnd Bergmann
2011-09-27 20:29 ` [PATCH v3 10/24] C6X: signal management Mark Salter
2011-09-28 13:48 ` Arnd Bergmann
2011-09-27 20:29 ` [PATCH v3 11/24] C6X: time management Mark Salter
2011-09-27 23:41 ` Thomas Gleixner
2011-09-28 12:48 ` Mark Salter
2011-09-27 20:29 ` [PATCH v3 12/24] C6X: interrupt handling Mark Salter
2011-09-27 23:30 ` Thomas Gleixner
2011-09-27 20:29 ` [PATCH v3 13/24] C6X: syscalls Mark Salter
2011-09-28 13:49 ` Arnd Bergmann
2011-09-27 20:29 ` [PATCH v3 14/24] C6X: traps Mark Salter
2011-09-28 13:50 ` Arnd Bergmann
2011-09-27 20:29 ` [PATCH v3 15/24] C6X: clocks Mark Salter
2011-09-28 13:51 ` Arnd Bergmann
2011-09-27 20:29 ` [PATCH v3 16/24] C6X: cache control Mark Salter
2011-09-28 13:52 ` Arnd Bergmann
2011-09-27 20:29 ` [PATCH v3 17/24] C6X: loadable module support Mark Salter
2011-09-28 13:54 ` Arnd Bergmann
2011-09-27 20:29 ` [PATCH v3 18/24] C6X: ptrace support Mark Salter
2011-09-28 13:57 ` Arnd Bergmann
2011-09-27 20:30 ` [PATCH v3 19/24] C6X: headers Mark Salter
2011-09-28 14:07 ` Arnd Bergmann
2011-09-29 13:32 ` Mark Salter
2011-09-29 14:24 ` Mark Salter
2011-09-29 14:41 ` Arnd Bergmann
2011-09-27 20:30 ` [PATCH v3 20/24] C6X: library code Mark Salter
2011-09-28 14:09 ` Arnd Bergmann
2011-09-27 20:30 ` [PATCH v3 21/24] C6X: general SoC support Mark Salter
2011-09-28 14:19 ` Arnd Bergmann
2011-09-27 20:30 ` [PATCH v3 22/24] C6X: EMIF - External Memory Interface Mark Salter
2011-09-28 14:13 ` Arnd Bergmann
2011-09-27 20:30 ` [PATCH v3 23/24] C6X: DSCR - Device State Configuration Registers Mark Salter
2011-09-28 14:11 ` Arnd Bergmann
2011-09-27 20:30 ` [PATCH v3 24/24] C6X: MAINTAINERS Mark Salter
2011-09-28 14:09 ` Arnd Bergmann
2011-09-27 23:15 ` [PATCH v3 00/24] C6X: New architecture Stephen Rothwell
2011-09-28 14:33 ` Arnd Bergmann
2011-09-28 21:49 ` Valdis.Kletnieks
2011-09-29 10:33 ` Arnd Bergmann
2011-09-29 12:21 ` Mark Salter [this message]
2011-09-29 12:42 ` Valdis.Kletnieks
2011-09-29 13:02 ` Mark Salter
2011-09-29 13:18 ` Arnd Bergmann
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