From: Catalin Marinas <catalin.marinas-5wv7dgnIgG8@public.gmane.org>
To: Thomas Petazzoni
<thomas.petazzoni-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
Cc: Russell King <linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org>,
Will Deacon <Will.Deacon-5wv7dgnIgG8@public.gmane.org>,
"devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Grant Likely
<grant.likely-s3s/WqlpOiPyB63q8FvJNQ@public.gmane.org>,
Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Albin Tonnerre <Albin.Tonnerre-5wv7dgnIgG8@public.gmane.org>,
"linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org"
<linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org>,
Jason Cooper <jason-NLaQJdtUoK4Be96aLqz0jA@public.gmane.org>,
Andrew Lunn <andrew-g2DYL2Zd6BY@public.gmane.org>,
Sebastian Hesselbarth
<sebastian.hesselbarth-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
Gregory Clement
<gregory.clement-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>,
Tawfik Bayouk <tawfik-eYqpPyKDWXRBDgjK7y7TUQ@public.gmane.org>,
Nadav Haklai <nadavh-eYqpPyKDWXRBDgjK7y7TUQ@public.gmane.org>,
Lior Amsalem <alior-eYqpPyKDWXRBDgjK7y7TUQ@public.gmane.org>,
Ezequiel Garcia
<ezequiel.garcia-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
Subject: Re: [PATCHv2 3/4] ARM: mm: add support for HW coherent systems in PL310
Date: Wed, 14 May 2014 15:34:48 +0100 [thread overview]
Message-ID: <20140514143448.GD19866@localhost> (raw)
In-Reply-To: <1399975839-5311-4-git-send-email-thomas.petazzoni-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
On Tue, May 13, 2014 at 11:10:38AM +0100, Thomas Petazzoni wrote:
> --- a/Documentation/devicetree/bindings/arm/l2cc.txt
> +++ b/Documentation/devicetree/bindings/arm/l2cc.txt
> @@ -8,6 +8,8 @@ Required properties:
>
> - compatible : should be one of:
> "arm,pl310-cache"
> + "arm,pl310-coherent-cache", used for I/O coherent platforms using
> + the PL310 cache
> "arm,l220-cache"
> "arm,l210-cache"
> "bcm,bcm11351-a2-pl310-cache": DEPRECATED by "brcm,bcm11351-a2-pl310-cache"
The binding name kind of implies that we have a transparent PL310 cache
(at least to me), which is not the case. I would rather have a specific
dma-coherent property or something similar since it's not another type
of PL310 but rather a different SoC topology.
But I recall you mentioned that you can't make this decision at the DT
level since you don't know before whether the SoC is I/O coherent or
not.
--
Catalin
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next prev parent reply other threads:[~2014-05-14 14:34 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-13 10:10 [PATCHv2 0/4] ARM: implement workaround for Cortex-A9/PL310/PCIe deadlock Thomas Petazzoni
[not found] ` <1399975839-5311-1-git-send-email-thomas.petazzoni-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
2014-05-13 10:10 ` [PATCHv2 1/4] of: make of_update_property() usable earlier in the boot process Thomas Petazzoni
[not found] ` <1399975839-5311-2-git-send-email-thomas.petazzoni-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
2014-05-13 14:00 ` Rob Herring
[not found] ` <CAL_JsqLNnLjeo2tM=z5bcn4DJD_5-uFRGkk6wAWnvGZyo9Y7pg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-05-13 14:30 ` Thomas Petazzoni
[not found] ` <20140513163026.18a0fa61-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
2014-05-13 14:54 ` Grant Likely
2014-05-13 15:30 ` Jason Cooper
[not found] ` <20140513153006.GC27822-u4khhh1J0LxI1Ri9qeTfzeTW4wlIGRCZ@public.gmane.org>
2014-05-13 15:54 ` Thomas Petazzoni
[not found] ` <20140513175404.319d067d-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
2014-05-13 16:31 ` Jason Cooper
2014-05-13 16:58 ` Rob Herring
[not found] ` <CAL_JsqJhKy=whJE25me07YFxEMX+gCch42ZF_Z5_5xfsfAvFXA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-05-13 17:00 ` Jason Cooper
2014-05-13 10:10 ` [PATCHv2 2/4] ARM: mm: allow sub-architectures to override PCI I/O memory type Thomas Petazzoni
[not found] ` <1399975839-5311-3-git-send-email-thomas.petazzoni-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
2014-05-14 15:01 ` Catalin Marinas
2014-05-13 10:10 ` [PATCHv2 3/4] ARM: mm: add support for HW coherent systems in PL310 Thomas Petazzoni
[not found] ` <1399975839-5311-4-git-send-email-thomas.petazzoni-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
2014-05-14 14:34 ` Catalin Marinas [this message]
2014-05-14 14:58 ` Thomas Petazzoni
2014-05-13 10:10 ` [PATCHv2 4/4] ARM: mvebu: implement L2/PCIe deadlock workaround Thomas Petazzoni
[not found] ` <1399975839-5311-5-git-send-email-thomas.petazzoni-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
2014-05-13 11:13 ` Arnd Bergmann
2014-05-13 12:52 ` Thomas Petazzoni
[not found] ` <20140513145205.1dad280f-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
2014-05-14 15:24 ` Catalin Marinas
2014-05-14 14:58 ` Catalin Marinas
2014-05-14 15:04 ` Thomas Petazzoni
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