From: Bjorn Andersson <bjorn@kryo.se>
To: Ohad Ben-Cohen <ohad@wizery.com>
Cc: Mark Rutland <mark.rutland@arm.com>,
Rob Herring <robherring2@gmail.com>, Suman Anna <s-anna@ti.com>,
Kumar Gala <galak@codeaurora.org>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-omap@vger.kernel.org" <linux-omap@vger.kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
Rob Herring <robh+dt@kernel.org>
Subject: Re: [PATCH v7 1/4] Documentation: dt: add common bindings for hwspinlock
Date: Mon, 16 Feb 2015 12:30:37 -0800 [thread overview]
Message-ID: <CAJAp7OjvFj6RL=Z=SQ6XYzo4qd-Bhe3SYV9-JAGS5SzjJ6R5xg@mail.gmail.com> (raw)
In-Reply-To: <CAK=WgbZ2986xxuAFvMSoyQLaPAxdUpZ8e5g-mSjyETfvd4KKHw@mail.gmail.com>
On Fri, Jan 30, 2015 at 9:41 PM, Ohad Ben-Cohen <ohad@wizery.com> wrote:
[..]
> Since the existence of several hwblocks is still fictional (Bjorn,
> please confirm too?), we may prefer to introduce changes to support it
> only when it shows up; it all depends on the amount of changes needed.
> Suman, care to take a look please?
>
It turns out that the Qualcomm platforms have two additional "remote
spinlock" mechanisms - both using shared memory.
On most platforms only 1 (out of these 3) is actually consumed, but
e.g. the older msm7x30 uses 2 of them (SMEM and DAL). Due to its age I
don't think it's on anyones todo list to actually support this
platform as of today; but it's out there.
None of these hwlocks are allocated dynamically, so if needed a
dynamic base_id (-1 like other frameworks) would be a acceptable
solution - and can easily be implemented when we need it.
Regards,
Bjorn
next prev parent reply other threads:[~2015-02-16 20:30 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-14 20:58 [PATCH v7 0/4] hwspinlock core & omap dt support Suman Anna
2015-01-14 20:58 ` [PATCH v7 1/4] Documentation: dt: add common bindings for hwspinlock Suman Anna
2015-01-15 13:52 ` Mark Rutland
2015-01-15 13:55 ` Mark Rutland
2015-01-15 14:42 ` Rob Herring
2015-01-15 20:16 ` Suman Anna
2015-01-16 6:09 ` Ohad Ben-Cohen
2015-01-16 10:17 ` Mark Rutland
2015-01-17 0:46 ` Ohad Ben-Cohen
2015-01-20 18:05 ` Tony Lindgren
2015-01-21 12:41 ` Ohad Ben-Cohen
2015-01-21 17:56 ` Suman Anna
2015-01-22 18:56 ` Mark Rutland
2015-01-29 3:58 ` Suman Anna
2015-02-11 11:29 ` Mark Rutland
2015-02-16 18:06 ` Bjorn Andersson
2015-01-30 23:29 ` Bjorn Andersson
2015-01-31 5:41 ` Ohad Ben-Cohen
2015-02-01 11:00 ` Ohad Ben-Cohen
2015-02-02 21:14 ` Suman Anna
2015-02-01 17:55 ` Bjorn Andersson
2015-02-02 21:07 ` Suman Anna
2015-02-05 23:01 ` Bjorn Andersson
2015-02-06 0:11 ` Suman Anna
2015-02-06 0:34 ` Bjorn Andersson
2015-02-11 10:29 ` Ohad Ben-Cohen
2015-02-11 11:35 ` Mark Rutland
2015-02-16 20:30 ` Bjorn Andersson [this message]
2015-01-16 10:19 ` Mark Rutland
2015-01-16 17:49 ` Suman Anna
2015-01-14 20:58 ` [PATCH v7 2/4] Documentation: dt: add the omap hwspinlock bindings document Suman Anna
2015-01-14 20:58 ` [PATCH v7 3/4] hwspinlock/core: add common OF helpers Suman Anna
2015-01-14 20:58 ` [PATCH v7 4/4] hwspinlock/omap: add support for dt nodes Suman Anna
2015-01-15 10:13 ` [PATCH v7 0/4] hwspinlock core & omap dt support Ohad Ben-Cohen
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