linux-kernel - Re: [PATCH v3 4/4] remoteproc/wkup_m3: add a remoteproc driver for TI Wakeup M3

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Date:	Sat, 16 May 2015 11:43:26 +0300
From:	Ohad Ben-Cohen <ohad@...ery.com>
To:	Suman Anna <s-anna@...com>
Cc:	Dave Gerlach <d-gerlach@...com>,
	linux-arm <linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-omap@...r.kernel.org" <linux-omap@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	Kevin Hilman <khilman@...aro.org>,
	Tony Lindgren <tony@...mide.com>
Subject: Re: [PATCH v3 4/4] remoteproc/wkup_m3: add a remoteproc driver for TI
 Wakeup M3

Hi Suman,

On Mon, May 11, 2015 at 6:01 PM, Suman Anna <s-anna@...com> wrote:
> We don't have any carveouts or usage of any external DDR, as this
> processor is used during Power Management, like cpuidle or suspend path,
> and is used to control the MPU and DDR states. The resource table is
> very simple and straight-forward [1].

Ok thanks.

Could you please document in the patch how the WkupM3 memory is
managed? Perhaps add to this latter explanation of yours also what
stands behind the umem/dmem names, justify usage of '__force' and
document the code around the l4_offset math (which I suspect may not
always be correct, as it seems the value of l4_offset depends on the
order of mem resources returned by platform_get_resource_byname).

Thanks,
Ohad.
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