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From: Ralf Baechle <ralf@linux-mips.org>
To: Max Filippov <jcmvbkbc@gmail.com>
Cc: linux-xtensa@linux-xtensa.org, Chris Zankel <chris@zankel.net>,
	Marc Gauthier <marc@cadence.com>,
	linux-mm@kvack.org, linux-arch@vger.kernel.org,
	linux-mips@linux-mips.org, linux-kernel@vger.kernel.org,
	David Rientjes <rientjes@google.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>,
	Steven Hill <Steven.Hill@imgtec.com>
Subject: Re: [PATCH v4 0/2] mm/highmem: make kmap cache coloring aware
Date: Mon, 25 Aug 2014 19:16:00 +0200	[thread overview]
Message-ID: <20140825171600.GH25892@linux-mips.org> (raw)
In-Reply-To: <1406941899-19932-1-git-send-email-jcmvbkbc@gmail.com>

On Sat, Aug 02, 2014 at 05:11:37AM +0400, Max Filippov wrote:

> this series adds mapping color control to the generic kmap code, allowing
> architectures with aliasing VIPT cache to use high memory. There's also
> use example of this new interface by xtensa.

I haven't actually ported this to MIPS but it certainly appears to be
the right framework to get highmem aliases handled on MIPS, too.

Though I still consider increasing PAGE_SIZE to 16k the preferable
solution because it will entirly do away with cache aliases.

Thanks,

  Ralf

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WARNING: multiple messages have this Message-ID (diff)
From: Ralf Baechle <ralf@linux-mips.org>
To: Max Filippov <jcmvbkbc@gmail.com>
Cc: linux-xtensa@linux-xtensa.org, Chris Zankel <chris@zankel.net>,
	Marc Gauthier <marc@cadence.com>,
	linux-mm@kvack.org, linux-arch@vger.kernel.org,
	linux-mips@linux-mips.org, linux-kernel@vger.kernel.org,
	David Rientjes <rientjes@google.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>,
	Steven Hill <Steven.Hill@imgtec.com>
Subject: Re: [PATCH v4 0/2] mm/highmem: make kmap cache coloring aware
Date: Mon, 25 Aug 2014 19:16:00 +0200	[thread overview]
Message-ID: <20140825171600.GH25892@linux-mips.org> (raw)
Message-ID: <20140825171600.Q5Hv2jB-AYNxHVfOzpEDSSKoOx3K6fcH1sTuYGQsbwk@z> (raw)
In-Reply-To: <1406941899-19932-1-git-send-email-jcmvbkbc@gmail.com>

On Sat, Aug 02, 2014 at 05:11:37AM +0400, Max Filippov wrote:

> this series adds mapping color control to the generic kmap code, allowing
> architectures with aliasing VIPT cache to use high memory. There's also
> use example of this new interface by xtensa.

I haven't actually ported this to MIPS but it certainly appears to be
the right framework to get highmem aliases handled on MIPS, too.

Though I still consider increasing PAGE_SIZE to 16k the preferable
solution because it will entirly do away with cache aliases.

Thanks,

  Ralf

  parent reply	other threads:[~2014-08-25 17:16 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-08-02  1:11 [PATCH v4 0/2] mm/highmem: make kmap cache coloring aware Max Filippov
2014-08-02  1:11 ` Max Filippov
2014-08-02  1:11 ` [PATCH v4 1/2] " Max Filippov
2014-08-02  1:11 ` Max Filippov
2014-08-02  1:11 ` Max Filippov
2014-08-02  1:11   ` Max Filippov
2014-08-02  1:11 ` [PATCH v4 2/2] xtensa: support aliasing cache in kmap Max Filippov
2014-08-02  1:11   ` Max Filippov
2014-08-02  1:11 ` Max Filippov
2014-08-02  1:11 ` Max Filippov
2014-08-25 17:16 ` Ralf Baechle [this message]
2014-08-25 17:16   ` [PATCH v4 0/2] mm/highmem: make kmap cache coloring aware Ralf Baechle
2014-08-25 23:55   ` Joshua Kinard
2014-08-25 23:55     ` Joshua Kinard
2014-08-26  0:36     ` David Daney
2014-08-26  0:36       ` David Daney
2014-08-26  2:41       ` Joshua Kinard
2014-08-26  2:41         ` Joshua Kinard
2014-08-26 17:45         ` David Daney
2014-08-26 17:45           ` David Daney
2014-08-27  1:04           ` Joshua Kinard
2014-08-27  1:04             ` Joshua Kinard
2014-08-26 18:37   ` Leonid Yegoshin
2014-08-26 18:37     ` Leonid Yegoshin

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