From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: <linuxppc-dev@ozlabs.org>, <cbe-oss-dev@ozlabs.org>
Cc: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Subject: [PATCH 0/5] Support 64K pages mapping of SPE local stores on 4K kernel
Date: Fri, 02 Mar 2007 22:32:43 +1100 [thread overview]
Message-ID: <1172835163.743765.616483133775.qpush@grosgo> (raw)
This serie of patches supports userland mappings of SPE local stores
using 64K hardware pages rather than 4K on a kernel using 4K pages to
improve performances.
The current version of this serie relies on a hack to the generic code
which is probably not acceptable upsteam. I have plans to do a proper
fix but haven't had time to do it yet.
The first patch of the serie is fairly independant of the rest and
should be applied to 2.6.21 as I beleive it fixes a bug with handling
of huge pages from SPEs.
This drop fixes a bug in the previous version where the wrong PTE could
be used by the hash code causing a failure to hash when accessing a
64K mapping. I also added the missing symbol exports for modules as
pointed out by Michael.
next reply other threads:[~2007-03-02 11:32 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-02 11:32 Benjamin Herrenschmidt [this message]
2007-03-02 11:32 ` [PATCH 1/5] powerpc: Fix spu SLB invalidations Benjamin Herrenschmidt
2007-03-02 11:32 ` [PATCH 2/5] This is a hack to get_unmapped_area to make the SPE 64K code work Benjamin Herrenschmidt
2007-03-02 11:33 ` [PATCH 3/5] powerpc: Introduce address space "slices" Benjamin Herrenschmidt
2007-03-02 11:33 ` [PATCH 4/5] powerpc: Add ability to 4K kernel to hash in 64K pages Benjamin Herrenschmidt
2007-03-02 11:33 ` [PATCH 5/5] powerpc: spufs support for 64K LS mappings on 4K kernels Benjamin Herrenschmidt
2007-04-21 20:33 ` [PATCH 0/5] Support 64K pages mapping of SPE local stores on 4K kernel Arnd Bergmann
2007-04-21 22:44 ` Benjamin Herrenschmidt
-- strict thread matches above, loose matches on Subject: below --
2007-02-20 7:44 Benjamin Herrenschmidt
2007-03-01 7:29 ` Michael Ellerman
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